BCP-8W
HYDRONIC SEQUENCING CONTROL
SYSTEM
DHW PUMP
PWR
LN
12
SYSTEM
3
DHW
PUMP
5
Stage A
7
Stage B
9
Stage C
11 13
Stage E
15
Stage F
17
Stage D
6 8 10 12 14
16 18
RS485
SYS=144F OD=35F
<AB
>DEGHJK
HI LO -- OFF
4
Stage G
19
Stage H
21
OUTDOOR
TEMP
27 29 31
DHW
33
SHUTDOWN
/TSTAT
/SETBACK
35
RETURN
TEMP
20 22 28 30 32 34 36
STAGE MENU
Stage E
Stage F
Stage G
Stage H
Stage A
Stage B
Stage C
Stage D
25 26
37 38
PROVE
TEMP
PROGRAM RUN
23 24
COMB.
AIR
COMB. AIR
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
LISTED
99RA
CUS
AUX 1
INPUT RATINGS: 120VAC 60Hz, 12VA MAX
Use Copper Conductors Only.
CAUTION:
Risk of Electric Shock.
OUTPUT RATING: 2A, 120VAC.
MAXIMUM 15A TOTAL FOR ALL CIRCUITS
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
,167$//$7,21$1'23(5$7,21,16758&7,2160$18$/
86(523(5$7,21,16758&7,2160$18$/
BCP-8W
AND
BCP-8X
+<'521,&6(48(1&,1*%2,/(5&21752/$1'(;7(16,21
7KLV:HLO0F/DLQFRQWUROLVVWULFWO\DQRSHUDWLQJFRQWUROLWVKRXOGQHYHUEHXVHGDVD
SULPDU\OLPLWRUVDIHW\FRQWURO$OOHTXLSPHQWPXVWKDYHLWVRZQFHUWLILHGOLPLWDQGVDIHW\
FRQWUROVUHTXLUHGE\ORFDOFRGHV7KHLQVWDOOHUPXVWYHULI\SURSHURSHUDWLRQDQGFRUUHFWDQ\
VDIHW\SUREOHPVSULRUWRWKHLQVWDOODWLRQRIWKLV:HLO0F/DLQFRQWURO
:$51,1*
Part Number 550-100-071/0408
2
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
%&3:/$<287 3
%&3:29(59,(: 4
81'(567$1',1*23(5$7,21&21&(37 5
Reset Ratio/Outdoor Reset ................5
PID Operation .......................6
OSS Operation ......................6
0DNH6XUH<RX+DYHWKH5LJKW&RQWURO 7
,1,7,$/6(783 7
6HOHFWLQJWKH6\VWHP)HDWXUHV 7
,167$//$7,21
0RXQWLQJWKH(QFORVXUH
,QVWDOOWKH6HQVRUV 9
System Sensor Installation ................9
Outdoor Sensor Installation ................9
:LULQJ 10
Wiring the Power (Terminals 1, 2) . ...........10
Wiring the Sensors ...................10
Wiring the Domestic Hot Water (DHW) Sensor (Terminals 33,
34)............................11
Wiring the Shutdown (Terminals 35, 36) ........11
Wiring the T-STAT (Terminals 35, 36) ..........11
Wiring the Setback (Terminals 35, 36) .........11
Connecting to the BCP-8X Panels and 420MOD Interface13
Selecting the BCP-8X Panel Letter ...........13
,167$//(50(186(48(1&( 14
6WDUWXS6HWWLQJV 17
Program Change Settings. ...............17
Startup Sequence ....................17
Control Mode ......................17
Display Unit .......................17
Setting the 4mA and 20mA Set Points (Available in 4-20mA
EMS only) ........................17
DHW Piping .......................18
DHW Pump Output ...................18
Combustion Air Damper Output . ............18
External Input Mode . ..................18
Burner Type .......................19
Boiler Output ......................19
Total Boilers .......................19
Staging .........................19
Sequence ........................19
Control Logic ......................19
Sensor Fault. ......................20
6HWWLQJWKH&RQWUROWR)DFWRU\'HIDXOWV 20
2SHUDWLQJ6HWWLQJV 20
Program Change Settings. ...............20
Season .........................21
Reset Ratio .......................21
Customized Reset Ratio. ................21
Set Point (Not Adjustable in EMS Mode) ........22
Outdoor Cutoff Temperature. ..............22
Target Offset. ......................22
Minimum Target .....................23
Maximum Target. ....................23
%RLOHU0LQLPXP5HWXUQ 23
Minimum Return. ....................23
Return Lag. .......................24
6\VWHP6HWWLQJV 24
Program Change Settings. ...............24
6WDJH6HWWLQJV 24
Reaction Time . .....................24
Purge Delay .......................24
Minimum Runtime . ...................24
Standby Delay. .....................25
Last Stage Hold .....................25
Throttle Range. .....................25
/HDG6HWWLQJV 25
Lead Boiler .......................26
Rotate Mode. ......................26
6HWEDFN6FKHGXOH 26
Setback .........................26
Boost ..........................26
Boost Period. ......................27
Day/Night Schedules ..................27
Set Present Time ....................27
'+:6HWWLQJV 2
DHW Priority Timer (Available with Parallel DHW Piping)28
DHW Set Point (Requires an Optional DHW Temperature
Sensor) .........................28
3XPS9DOYHDQG&RPEXVWLRQ$LU'DPSHU2SHUDWLRQ 29
Run-On .........................29
Pump Exercise .....................29
0DLQWHQDQFH 30
System & Outdoor Sensor Trim .............30
+LVWRU\ 30
&RQ¿JXUDWLRQ ......................30
Display and Buttons . ..................30
%RLOHU6HWWLQJV 32
Mode ..........................32
RunTime. ........................32
7528%/(6+227,1* 33
08/7,3/(%2,/(56:,7+380363,3,1*:,5,1*
',$*5$06 34
86(50(186(48(1&( 35
Program Change Settings. ...............35
Season .........................35
Set Point (Not Adjustable in EMS Mode) ........36
Reset Ratio .......................36
Customized Reset Ratio. ................36
Outdoor Cutoff Temperature. ..............37
Setback .........................37
Day/Night Schedules ..................37
63(&,),&$7,216 40
%&3:6SHFL¿FDWLRQV 40
%&3;6SHFL¿FDWLRQV 40
&RQWHQWV
3
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
HYDRONIC SEQUENCING CONTROL
SYSTEM
DHW PUMP
PWR
LN
12
SYSTEM
3
DHW
PUMP
5
Stage A
7
Stage B
9
Stage C
11 13
Stage E
15
Stage F
17
Stage D
6 8 10 12 14
16 18
RS485
SYS=144F OD=35F
<AB
>DEGHJK
HI LO -- OFF
4
Stage G
19
Stage H
21
OUTDOOR
TEMP
27 29 31
DHW
33 35
RETURN
TEMP
20 22 28 30 32 34 36
STAGE MENU
Stage E
Stage F
Stage G
Stage H
Stage A
Stage B
Stage C
Stage D
25 26
PRESS
+ -
37 38
PROVE
TEMP
PROGRAM RUN
23 24
COMB.
AIR
COMB. AIR
Connect to Extension panels to
add additional stages or connect
to 420MOD Interface for
external set point.
When connecting Temperature Sensors, no
Polarity is observed. Prove terminals
must be connected for BCP-8 to
operate stages.
Button function is presented on
bottom row of the display.
LEDs indicate
associated relay’s status
Program Switch to restrict access
to function changes. This Switch is
covered with Enclosure Wiring Cover.
System Output controls pumps,
valves, or other system components.
DHW Pump and Comb. Air relays are
controlled when configured.
Output Relays to manage the stages.
BCP-8W
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
LISTED
99RA
CUS
SHUTDOWN
/TSTAT
/SETBACK
INPUT RATINGS: 120VAC 60Hz, 12VA MAX
Use Copper Conductors Only.
CAUTION:
Risk of Electric Shock.
OUTPUT RATING: 2A, 120VAC.
MAXIMUM 15A TOTAL FOR ALL CIRCUITS
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
%&3:/$<287
4
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
%&3:29(59,(:
6(48(1&(6837267$*(6:,7+38036259$/9(6
The BCP-8W is the perfect control whenever multiple boiler stages are required for Hydronic heating applications. The BCP-8W controls
the stages and their pumps or valves to maintain a precise system set point.
3,'2529(56,=('6<67(0266/2*,&
The BCP-8W’s control algorithm allows it to look at the rate of change in the system. If the load is changing quickly, the BCP-8W can
be set to OSS sequencing where it will react based on load changes. If the system oscillation is minimal as in heating applications, the
%&3:ZLOOPDNHVORZDQGJUDGXDORXWSXWDGMXVWPHQWV7KHUHIRUHWKH%&3:DGDSWVWRVSHFL¿FV\VWHPUHTXLUHPHQWVDQGPLQLPL]HV
oscillation around the set point.
',*,7$/',63/$<2)$//6<67(06(77,1*6
The BCP-8W’s alphanumeric digital display names each system parameter in simple English and shows its precise value. The easy to
IROORZPHQXV\VWHPDOORZVXVHUVWRTXLFNO\PDNHFKDQJHVWRDQ\V\VWHPVHWWLQJZLWKRXWKDYLQJWROHDUQDQ\VSHFLDOL]HGFRGHVRUNH\
commands.
$8720$7,&527$7,21$021*67$*(6
5RWDWLQJWKH¿UVWVWDJHWREHDFWLYDWHGRQDFDOOIRURXWSXWSURPRWHVHYHQZHDURQHDFKERLOHU7KH%&3:KDVWKUHHPRGHVRIURWDWLRQ
Manual, First-On/First-Off (FOFO), or Time. The Time rotates the lead stage every selected period from every hour to every 41 days.
287'2255(6(7:,7+&86720,=$%/(&859(
With its Outdoor reset feature, the BCP-8W is capable of changing its temperature target based on the outdoor temperature. It offers
VHYHUDOSDUDPHWHUVWKDWFDQEHXVHGWR¿QHWXQHWKHUHVHWFXUYHOffset, Minimum, and Maximum Targets, and Night Setback Schedule
or Setback using an External Signal. )XUWKHUPRUHDFXVWRPL]DEOHRXWGRRUUHVHWFXUYHKDVEHHQLQFRUSRUDWHGIRUXQLTXHDSSOLFDWLRQV
ZKHUHVWDQGDUGUHVHWUDWLRVZLOOQRWVXI¿FH
67$1'%<%2,/(5237,21
$Q\RIWKH%&3:KHDWLQJERLOHUVFDQEHFRQ¿JXUHGDVD6WDQGE\ZLWKDQDGMXVWDEOH6WDQGE\GHOD\$VVLJQLQJDVSHFL¿FERLOHUWR
work in standby mode will remove it from the rotation. In this mode, the boiler will be used for backup in large demand periods where
WKHSULPDU\ERLOHUVZLOOQRWVXI¿FH
6<67(0$1'&20%867,21$,5'$03(52873876:,7+3529(,1387
These outputs work with the control logic to operate a primary system pump and a combustion air damper. In addition, a System Prove
LQSXWFDQEHZLUHGLQWRFKHFNWKHVWDWXVRIHLWKHURIWKHFRPSRQHQWVHQHUJL]HGE\WKHRXWSXWVEHIRUHWKHVWDJHVFDQEHDFWLYDWHG
1250$//2+,/2+,253$5$//(//2/2+,+,6(48(1&,1*
The BCP-8W can sequence boilers as needed)RUKHDWLQJV\VWHPVZKHUHKLJKHUHI¿FLHQF\LVDFKLHYHGXVLQJORZHU¿ULQJVWDJHVWKH
%&3:RIIHUVWKH3DUDOOHO6HTXHQFLQJRSWLRQ,WVHTXHQFHVDOOWKHORZ¿ULQJVWDJHV¿UVWEHIRUHEULQJLQJWKHUHVWRIWKHVWDJHVRQ)RU
other types of boilers, using the Normal Sequencing option brings the lower operating stage followed by the higher one of the lead boiler.
That will be repeated for each of the lag boilers.
08/7,3/(256,1*/(67$*,1*
8QOLNHPDQ\ERLOHUVZKHUHWR¿UHDPXOWLVWDJHERLOHUERWKORZDQGKLJKVWDJHUHOD\VPXVWEHHQHUJL]HGVRPHRIWKHDYDLODEOHHTXLSPHQW
require that the operation of the higher stages turn off the lower operating stages. This can be achieved by selecting Single from the
Startup Staging menu.
$''837267$*(6
As a stand-alone, the BCP-8W-8 is designed to control eight stages. However, it has the capability of expanding its control to two
extension panels (BCP-8X) each with eight stages. Thus, the BCP-8W can control a total of up to 24 stages.
021,7256<67(05(78517(03(5$785(
Using a smart algorithm, the BCP-8W can monitor the boiler return temperature using an optional return sensor mounted on the return
line. Then, sequence the boilers to raise the return temperature above an adjustable Minimum Return.
'+:3803&21752/:,7+08/7,3/(35,25,7<237,216
Having a DHW input either as a dry contact to be used with an external aquastat or as a temperature sensor that can be ordered separately,
the BCP-8W can control a DHW pump using its built-in DHW Pump output relay. The user will have different priority options that
varies based on the DHW piping design.
5
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
81'(567$1',1*23(5$7,21&21&(37
The BCP-8W has multiple operating modes that satisfy most hydronic systems. When the
Outdoor Reset is selected, it can change the System Set Point based on outdoor temperature.
Or, it can be set to Set Point and sequence stages to achieve a manually adjusted Set Point.
In Outdoor Reset, the BCP-8W controls a hot water heating system to provide a building with
comfortable and even heat levels. The BCP-8W varies the Target temperature of the circulating
heating water in response to changes in the outdoor temperature.
The BCP-8W also controls the system circulating pump with an adjustable Outdoor Cutoff.
When the outdoor temperature is above the Outdoor Cutoff, the System Pump will be off
and no heating water is circulated through the system. When the outdoor temperature drops
EHORZWKH2XWGRRU&XWRIIWKHV\VWHPSXPSUHOD\LVHQHUJL]HGDQGWKHKHDWLQJZDWHUVWDUWVWR
circulate through the system. The temperature of the heating water is controlled by the Reset
Ratio parameters or the Set Point.
5(6(75$7,2287'2255(6(7
When a building is being heated, heat escapes through the walls, doors, and windows to
the colder outside air. The colder the outside temperature, the more heat escapes. If you
can input heat into the building at the same rate that it is lost out of the building, then the
building temperatures will remain constant. The Reset Ratio is an adjustment that lets
you achieve this equilibrium between heat input and heat loss.
7KHVWDUWLQJSRLQWIRUPRVWV\VWHPVLVWKH2'6<62XWGRRU7HPSHUDWXUH
+HDWLQJ:DWHU7HPSHUDWXUHUDWLR7KLVPHDQVWKDWIRUHYHU\GHJUHHWKHRXWGRRU
temperature drops, the temperature of the heating water will increase one degree. The
starting point of the curves is adjustable, but comes factory selected at 70°F Outdoor
Temp. and 100°):DWHU7HPS)RUH[DPSOHZLWKD2'6<6UDWLRLIWKH
outdoor temperature is 50°F, this means the temperature has fallen 20° from the starting
point of 70°F. Therefore, the heating water temperature will increase 20° to 120°F.
Each building has different heat loss characteristics. A very well insulated building will
QRWORVHPXFKKHDWWRWKHRXWVLGHDLUDQGPD\QHHGD5HVHW5DWLRRI2'
6<62XWGRRU:DWHU7KLVPHDQVWKHRXWGRRUWHPSHUDWXUHZRXOGKDYHWRGURS
degrees to increase the water temperature 1 degree. On the other hand, a poorly insulated
EXLOGLQJZLWKLQVXI¿FLHQWUDGLDWLRQPD\QHHGD5HVHW5DWLRRI2'6<6
This means that for each degree the outdoor temperature dropped the water temperature
will increase 2 degrees. The BCP-8W has a full range of Reset Ratios to match any
buildings heat loss characteristics.
A heating curve that relies not only on Outdoor temperature but also on the type of
radiation will improve heat comfort. The following are suggested initial settings for
different types of radiation based on average building insulation and heat loss. The
FRQWUDFWRUFDQ¿QHWXQHWKHVHDGMXVWPHQWVEDVHGRQWKHVSHFL¿FEXLOGLQJQHHG
7\SHRI5DGLDWLRQLQ%XLOGLQJ 5HVHW5DWLR 2IIVHW
Radiators (Steel & Cast Iron) 1.00 (OD) : 1.00 (SYS) Û)
Baseboard (Finned copper tube& Cast Iron) 1.00 (OD) : 1.00 (SYS) Û)
Radiant (High Mass/Concrete) 4.00 (OD) : 1.00 (SYS) Û)
Radiant (Low Mass/Joists) 2.00 (OD) : 1.00 (SYS) Û)
Fan Coils & Air Handlers 1.00 (OD) : 1.00 (SYS) Û)
Outdoor Temperature
Water Temperatur e
70 405060
130
120
110
100
Outdoor Temperature
Water Tem perature
70 405060
110
100
90
80
Outdoor Temperature
Water Tem perature
70 405060
150
140
130
120
1:4
With a 0° Offset, the
ratio curves begin at
100° Water Temperature.
With a -20° Offset, the
ratio curves begin at
80° Water Temperature.
With a +20° Offset, the
ratio curves begin at
120° Water Temperature.
1:4
1:4 1:1
1:1
1:1
4:1
4:1
4:1
90
100
+20 Offset
-20 Offset
(O) Outdoor Temperature (in °F)
70 60
50
40 20
30 0 -10
10 -20
100
120
110
130
140
150
160
180
170
190
200
210
220
1:3 1:2 1:1.5
1:1.25
1:1
1.25:1
1.5:1
2:1
3:1
4:1
(S) Water Temperature (in °F)
Reset Ratio Curves
Reset Ratio is Presented as
Outdoor Temp.(O) : Water Temp.(S) Ratio
1:4
8:1
:$51,1*
:KHQFRQWUROOLQJDQRQFRQGHQVLQJ
ERLOHUWKH0LQLPXP7DUJHW
WHPSHUDWXUHPXVWEHVHWWRWKHERLOHU
PDQXIDFWXUHUVSHFL¿FDWLRQV,QWKDW
FDVHV\VWHPWHPSHUDWXUHPXVWQRW
JREHORZVXFKWHPSHUDWXUH
6
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
The BCP-8W has multiple operating modes that satisfy most hydronic systems. It can sequence stages to achieve an adjustable Set Point
or an Outdoor Reset Ratio. Moreover, when used with the 420MOD Interface it can accept a 4-20mA signal as a set point. The 420MOD
Interface must be purchased separately. This gives the BCP-8W the capability of being controlled remotely.
3,'23(5$7,21
3,'FRQWUROORJLFLVSULPDULO\XVHGIRUEXLOGLQJKHDWLQJ7KHORJLFZLOOXWLOL]HWZRSULPDU\VHWWLQJVWRDGGRUVXEWUDFWVWDJHV7KH5HDFWLRQ
7LPHLVXVHGWRWXUQRQHQHUJL]HVWDJHV2QWKHRWKHUKDQGWKH0LQLPXP5XQWLPHLVXVHGWRWXUQRIIGHHQHUJL]HVWDJHV$FDOOIRUKHDW
by either closing the TSTAT input or opening the SHUTDOWN input, and when the outdoor temperature is below the Outdoor Cutoff, the
%&3:ZLOOWXUQRQHQHUJL]HWKHORZHVW¿ULQJVWDJHRIWKH/HDG%RLOHUWRVWDUWWKH3XUJH'HOD\$IWHUWKHHODSVHRIWKHSXUJHSHULRGWKH
BCP-8W will start calculating the Reaction Period. If after a full Reaction Time the control logic foresee additional stages are needed,
WKH%&3:ZLOOHQHUJL]HWKHIROORZLQJVWDJH,IWKDWVWDJHZDVDQRWKHUERLOHUWKDWERLOHUKDVWRJRWKURXJKDIXOO3XUJH'HOD\EHIRUH
VWDUWLQJWRFDOFXODWHWKH5HDFWLRQ7LPHIRUWKDWVWDJH2WKHUZLVHLIWKHQH[WVWDJHZDVWKHKLJKHU¿ULQJVWDJHRQWKHVDPHERLOHUWKH
5HDFWLRQ7LPHZLOOVWDUWIURPWKHPRPHQWWKHKLJKHU¿ULQJVWDJHUHOD\LVHQHUJL]HG
When the BCP-8W PID logic foresees that the system will overshoot, regardless of the current system and target values, it will make sure
WKDWWKHODVWVWDJHWXUQHGRQHQHUJL]HGHODSVHGDIXOO0LQLPXP5XQWLPHEHIRUHLWLVWXUQHGRIIGHHQHUJL]HG([FHSWIRUWKHOHDGVWDJH
QRDGGLWLRQDOVWDJHVZLOOEHWXUQHGRIIGHHQHUJL]HGXQWLODQRWKHUIXOO0LQLPXP5XQWLPHLVHODSVHG2QWKHRWKHUKDQGLIWKHODVWVWDJH
LVDOHDGVWDJHLWZLOOUHPDLQHQHUJL]HGXQWLOWKHV\VWHPUHDGLQJH[FHHGVWKHWDUJHWVHWSRLQWE\WKH/DVW6WDJH+ROGYDOXHLQDGGLWLRQWR
satisfying the Minimum Runtime condition. That is, if the Set Point was 150°)DQGWKH/DVW6WDJH+ROGZDVVHWWR°F, the lead stage
ZLOOUHPDLQHQHUJL]HGXQWLOWKHV\VWHPUHDFKHV°F and a full Minimum Runtime elapses. This is useful in protecting the lead stages
from short cycling.
26623(5$7,21
266LVXVHGLQIDVWUHDFWLQJDSSOLFDWLRQDVLQSURFHVVDSSOLFDWLRQVZKHUHPDLQWDLQLQJDVHWSRLQWLVFULWLFDO7KH266XWLOL]HVWKH7KURWWOH
setting, as a mean to calculate the number of stages the BCP-8W shall have on at any point. For every Throttle Range below the set
SRLQWDQDGGLWLRQDOVWDJHVKDOOEHWXUQHGRQHQHUJL]HG7KDWLVLIWKHVHWSRLQWZDV°F and the Throttle setting was 5°F, if the System
dropped below 175°F (180°F - 5°)WKHOHDGVWDJHZLOOHQHUJL]H:LWKIXUWKHUGHFUHDVHLQWKHV\VWHPYDOXHWR°F (180°F - 5°F - 5°F),
WKHVHFRQGVWDJHZLOOHQHUJL]H
As the system temperature rises towards the set point, stages will turn off. Using the previous example, when the system rise to 175°F
ERLOHU%ZLOOGHHQHUJL]HOHDYLQJRQO\ERLOHU$RQ%RLOHU$ZLOOUHPDLQRQXQWLOWKHV\VWHPULVHVDRQHIXOO7KURWWOHUDQJHDERYHWKHVHW
point. This will leave the lead boiler A on until the temperature rises to 185°)WKHQWXUQRIIGHHQHUJL]H
7KURWWOLQJ([DPSOH
6HW3RLQW °) 7KURWWOLQJ °) %RLOHU6WDJHV$%&DQG'
)DOOLQJ7HPSHUDWXUH 5LVLQJ7HPSHUDWXUH
7HPSHUDWXUH &DOFXODWLRQ 6WDJH7XUQHG2Q 6WDJHV2Q 6WDJH7XUQHG2II 6WDJHV2Q
185°F
180 + (1)THR
--- None A None
180°F 180 - (0)THR --- None --- A
175°F 180 - (1)THR A A B A
171 to 174°F --- --- A --- A,B
170°F 180 - (2)THR B A,B C A,B
166 to 169°F --- --- A,B --- A,B,C
165°F 180 - (3)THR C A,B,C D A,B,C
161 to 165°F --- --- A,B,C --- A,B,C,D
160°F 180 - (4)THR D A,B,C,D --- A,B,C,D
7
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
0$.(685(<28+$9(7+(5,*+7&21752/
,I\RXQHHGWKH%&3:WRGRDGGLWLRQDOWDVNVWKDWHLWKHUDUHQRWOLVWHGRUGRQRWNQRZKRZWRVHWWKHPFRQWDFW:HLO0F/DLQ
,1,7,$/6(783
+DYLQJDQ,QLWLDO6HWXS3URJUDPZLOOHDVHWKHFRQ¿JXUDWLRQRIWKH%&3:DQGZLOOSURYLGHWKHRSSRUWXQLW\WRXWLOL]HPDQ\RIWKHHQHUJ\
saving features and give more comfortable heat when needed.
7KHSURJUDPVKRXOGFRQVLVWRIWKHIROORZLQJ
6HOHFWLQJWKHIHDWXUHVWKDW\RXUV\VWHPFDQXWLOL]H
,QVWDOODWLRQ,QVWDOOWKH&RQWUROVZLWFKHVDQGVHQVRUV
6HWWLQJWKH6\VWHP6WDUWXS
6HWWLQJWKH6\VWHP6HWWLQJV
6HWWLQJWKH6WDJHV
$GMXVWLQJ5HVHW5DWLRDQG:DWHU2IIVHW,Q5HVHW0RGH2QO\
6(/(&7,1*7+(6<67(0)($785(6
The BCP-8W has been designed with Hydronic heating as the primary purpose. With this in mind, many of the BCP-8W features can
EHXWLOL]HGWRHDVHHQKDQFHDQGLPSURYH\RXUV\VWHPSHUIRUPDQFH6RPHRIWKHVHIHDWXUHVDUHOLVWHGLQWKLVVHFWLRQ
+($7,1*:,7+08/7,3/(256,1*/(287387$7$7,0(
7KH%&3:LVHTXLSSHGWRFRQWUROPXOWLSOHPXOWLVWDJHERLOHUVZLWKRUZLWKRXWSXPSVRUYDOYHVIRUKHDWLQJDSSOLFDWLRQV
7KDWFRPELQHGZLWKWKHFDSDELOLW\RIHQHUJL]LQJRQO\DVLQJOHVWDJHRIDPXOWLVWDJHERLOHUZKHQLQKLJKGHPDQGPDNHVWKH%&3
8W versatile for many industries.
287'2255(6(76(732,1725(;7(51$/0$6(732,17
7KH%&3:FDQFRQWUROWKH6\VWHP7HPSHUDWXUHHLWKHUE\DGMXVWLQJWKHWDUJHWDFFRUGLQJWRWKH2XWGRRU7HPSHUDWXUH2XWGRRU
Reset) or by maintaining an adjustable Set Point. The Outdoor Reset option uses an Outdoor Sensor (supplied with the control) and
achieves better fuel savings in addition to better comfort.
8VLQJWKHRSWLRQDO02',QWHUIDFHWKH%&3:FDQUHFHLYHDQH[WHUQDOVHWSRLQWWKURXJKDQ(06V\VWHP
3,'25266&21752//2*,&
7KH%&3:3,'FDQEHXVHGIRUDSSOLFDWLRQVZKHUHV\VWHPUHDFWLRQis slow and requires a long period to achieve or measure the
results. However, OSS, can be used for applications where the load changes frequently and the sequencing must match the load and
its immediate change.
180%(52)67$*(6
7KH%&3:FDQEHFRQ¿JXUHGWRFRQWUROXSWRHLJKWVWDJHV,WFDQFRQWUROXSWRVWDJHVXVLQJDPD[LPXPRIWZR%&3;
Extension Panels, each with eight stages.
67$*(38036259$/9(6
7KH%&3:FDQFRQWUROPXOWLSOHVWDJHVLQDGGLWLRQWR boiler pumps or valves.
&21752/'+:3803$1'&20%867,21$,5'$03(5
The control of the DHW is based on either a temperature sensor, can be purchased separately, on the DHW source or using a dry
contact from an aquastat. The BCP-8W provides multiple DHW Priority options based on the DHW piping. The Combustion Air
Damper output can be used in conjunction with the PROVE input to check the status of the Combustion Air Damper's End Switch,
6\VWHP3XPSV)ORZ6ZLWFKRUDQ\RWKHURSHUDWLQJGHYLFHEHIRUHDQ\VWDJHLVHQHUJL]HG
021,725%2,/(55(7851
The optional return line sensor, is purchased separately, can be connected to monitor and help protect the boilers from thermal
shock and condensation caused by cool returns.
8
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
$8720$7,&527$7,21$021*%2,/(56
5RWDWLQJWKHOHDGERLOHUWREHDFWLYDWHGRQDFDOOIRURXWSXWSURPRWHVHYHQZHDURQDOOERLOHUV7KH%&3:KDVWKUHHPRGHVRI
URWDWLRQ0DQXDO)LUVW2Q)LUVW2IIRU7LPHG5RWDWLRQ7KLVRSWLRQDXWRPDWLFDOO\URWDWHVWKHERLOHUVHYHU\VHOHFWHGSHULRGIURP
one hour to every 41 days (999 hours).
6(7%$&.%226725'$<1,*+76&+('8/,1*
7ZR6HWEDFNPRGHVDUHDYDLODEOHIRUWKH%&3:
The Day/Night Scheduling provides an adjustable time-based schedule for the Setback. It will be available when Shutdown or Tstat
is selected from the External Input Startup menu options.
:hen Setback is selected from the External Input Startup menu options, an external signal can be used to switch the operation of
the BCP-8W in and out of setback mode
7KH%RRVWFDQEHXVHGWREULQJWKHEXLOGLQJWRFRPIRUWDEOHWHPSHUDWXUHVHWWLQJVDIWHUD1LJKWRU6HWEDFNSHULRG,WGRHVWKDWE\
increasing the target temperature for an adjustable period that follows the setback.
,167$//$7,21
Each of the BCP-8W and BCP-8X consists of three primary enclosure
components.
7KH(QFORVXUH'LVSOD\0RGXOHFRQWDLQVWKHGLVSOD\EXWWRQV/('V
and electric wiring terminals. It has two screws to hold it to the base. A
SURJUDPFRQ¿JXUDWLRQVZLWFKXVHGWRDGMXVW%&3:VHWWLQJVLVSODFHG
above the terminals. This switch is enclosed with the Enclosure Wiring
Cover for security. The wiring terminals are of the plug-in type to ease
installation and removal.
7KH(QFORVXUH%DVH contains the holes to mount and hold the control
DJDLQVWWKHZDOORUDQ\ÀDWVXUIDFH$OORWKHUHQFORVXUHFRPSRQHQWVPRXQW
on the base. The bottom section of the Enclosure Base contains the wiring
chamber with knockouts on the bottom to ease installation.
7KH(QFORVXUH:LULQJ&RYHU seals the wires from the external
environment. It has two screws to hold it to the base and a hole to secure
a lock on the wiring enclosure. A plastic web that separates the wiring
chamber into high and low volt sections has been provided.
02817,1*7+((1&/2685(
6HOHFWDORFDWLRQQHDUWKHHTXLSPHQWWREHFRQWUROOHG
7KHVXUIDFHVKRXOGEHÀDWDQGVXI¿FLHQWO\ZLGHDQGVWURQJWRKROGWKH%&3
8W or BCP-8X.
.HHSWKHFRQWURODZD\IURPH[WUHPHKHDWFROGRUKXPLGLW\$PELHQW
operating temperature is from 20 to 120°F.
5HPRYHWKH(QFORVXUH:LULQJ&RYHUIURPWKHFRQWUROHQFORVXUHE\
removing the two bottom screws.
5HPRYHWKH(QFORVXUH'LVSOD\0RGXOHE\UHPRYLQJWKHPLGGOHVFUHZV
6FUHZWKH(QFORVXUH%DVHWRWKHVXUIDFHWKURXJKWKHXSSHUDQGORZHU
mounting holes on the back of the enclosure.
5HSODFHWKH(QFORVXUH'LVSOD\0RGXOHDQGUHSODFHWKHPLGGOHVFUHZV
'RQRWUHSODFHWKHHQFORVXUHZLULQJFRYHUXQWLODOOZLULQJLVGRQH
:KHQSXUFKDVLQJDSDGORFNIRUWKHHQFORVXUHWKHPD[LPXPVKDQNGLDPHWHU
should not exceed ¼"
Mounting Base
Display Mounting Scr ews Wiring Cover Mounting Scr ews
Enclosure Display Module
Enclosure Wiring Cover Enclosure Base
Hole for optional
Padlock (not supplied)
9
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
S
,
1
6
7$//7+(
6
(1
62
5
6
6<
6
7(0
6
(1
62
5
,
1
6
7$//$7,
21
/
2&
$7,
1
*
7+(
6
<
6
7(0
6
(1
62
5
3XWW
K
H6\VWHPVHQVRUDSSUR[
L
PDWH
O
\IHHWSDVWW
K
H
O
DVW
K
HDW
L
QJ
E
R
LO
HURQW
K
H
common suppl
y
header but before an
y
takeoffs
.
7
KHVHQVRUPXVWEHORFDWHGZKHUHLWVHHVWKHRXWSXWRIDOOWKHVWDJHV,ID
b
o
il
er
i
s p
i
pe
d
so t
h
at t
h
e sensor
d
oes not see
i
ts output, t
h
e BCP-8W w
ill
no
t
s
equence the boilers correctl
y
.
2QO\XVHD6WDQGDUG%UDVV7XEHVHQVRU
7K
HVHQVRUZ
L
UHVFDQ
E
HH[WHQ
G
H
G
XSWRXV
L
QJDV
KL
H
OG
H
G
FRQ
G
XFWRU
FDEOH%HOGHQRUH
T
XLYDOHQ
W
(#18/2
)
)
. Do not
g
round the shield at the
s
ensor but at the panel using one of the terminals marked with an “O”
.
'RQRWUXQVHQVRUZ
L
UHV
L
QFRQ
G
X
L
WZ
L
W
K
OL
QHYR
O
WDJHZ
L
U
L
QJ
,00(5
6
,
2
1+
(
$7,1
*
6<
6
7(0
6
(1
62
5
+
66
,
1
6
7$//$7,
2
1
,QVWD
OO
D
,'
L
PPHUV
L
RQZH
OO
,QVHUWWKHVHQVRU
S
UREHRIWKHVX
SS
OLHGVHQVRULQWRWKHZHOO
6
75$3
2
1
+
(
$7,1
*
6
<
6
7(0
6
(1
62
5
+
66
,
1
6
7$//$7,
2
1
6WUDSWKHVHQVRUWRWKHSLSHXVLQ
J
PHWDOFODPSV'RQRWRYHUWL
J
KWHQWKH
clamp. The sensors's concave surface must be facing the pipe for bette
r
t
emperature rea
di
ng
.
6WUD
S
S
L
S
HLQVXODWLRQDURXQGWKHVHQVRUDQG
S
L
S
H
Immersion Well
3/8" ID 1/2" NPT
Heating System
Sensor
Common Supply Pipe
Sensor Probe
Immersion Heating System Sensor
Shield
Common Supply Pipe
Sensor Probe
Strap-On Heating System Sensor
Shield
Pipe Insulation
$
/(57
I
f
the
S
ystem
S
ensor can not sense the
correct s
y
stem water temperature bein
g
supplied to the buildin
g
, the BCP-8W will
not
p
rovide com
f
ortable heat level
s
.
B
e
sure that it is located on the main suppl
y
p
i
pe w
hi
c
h
can not eas
ily
b
e
i
so
l
ate
d
f
rom the syste
m
.
2
8
7'
22
5
6
(1
62
5
,
1
6
7$//$7,
21
2QO
\
XVHWKH:HLO0F/DLQVHQVRULQFOXGHGZLWKWKHXQLW
/
RFDWHW
K
HVHQVRU
L
QW
K
HV
K
D
G
HRQW
K
HQRUW
K
V
LG
HRIW
K
H
E
X
LOGL
QJ
7KH
VH
Q
VRU
s
h
ou
ld
never
b
e
i
n
di
rect sun
ligh
t
.
%HVXUHWKHORFDWLRQLVDZD
\
IURPGRRUVZLQGRZVH[KDXVWIDQVYHQWVR
U
ot
h
er poss
ibl
e
h
eat sources
.
7K
HVHQVRUV
K
RX
OG
E
HPRXQWH
G
DSSUR[
L
PDWH
O\
IHHWD
E
RYH
J
URXQ
G
O
HYH
O
$GKHUHWKH2XWGRRU/DEHO
S
URYLGHGWRWKHEDFNRIWKHVHQVRUEDVH
8
VHW
K
H(QF
O
RVXUH%DVH
E
RWWRP
N
QRF
N
RXWIRUW
K
HFRQ
G
X
L
W
8
VHW
K
H
O
RF
N
QXWWR
h
o
ld
t
h
e con
d
u
i
t an
d
enc
l
osure
b
ase to
g
et
h
er. Screw t
h
e cover to t
h
e
b
ase
.
,IVFUHZVDUHXVHGWRDI¿[WKHHQFORVXUHWRWKHZDOOPDNHVXUHWRVHDODURXQG
th
e sensor an
d
wa
ll
except from t
h
e
b
ottom
.
7K
HVHQVRUZ
L
UHVFDQ
E
HH[WHQ
G
H
G
XSWRXV
L
Q
J
V
KL
H
OG
H
G
FRQ
G
XFWRUFD
EO
H
(
#18/2
)
. Do not
g
round the shield at the sensor but at the control usin
g
the
t
erm
i
na
l
mar
k
e
d
w
i
t
h
an “
O
”
.
'RQRWUXQVHQVRUZ
L
UHV
L
QFRQ
G
X
L
WZ
L
W
K
OL
QHYR
O
WD
J
HZ
L
U
L
Q
J
:
$51,1
:
:
*
7KH
%&3
:
LV
D
Q
R
SHUDW
L
Q
J
FR
Q
W
U
RO
RQ
O\
$OO
H
TX
L
SPHQ
W
PXVW
KD
Y
H
DOO
V
DIHW
\
D
Q
G
OL
P
LW
FRQWUR
O
VUH
T
X
L
UH
G
E\
F
R
G
H
,W
LV
WK
H UHVSRQV
LELOL
W
\
RI
W
K
H
L
Q
VWD
OO
HU
WR
YHUL
I\
W
K
DW
D
O
O
W
K
H
VD
I
HW
\
OLPL
WV
DUH
Z
RUNLQ
J
S
URSHUO
\
EH
I
R
U
H
WKH
%
&3
:
LV
L
Q
VWDOOHG
Outdoor
Sensor
snap-in
location
Shield
not connected
Conduit
Outdoor Label
on back of Sensor
Outdoor Sensor
Mounting
screws
location
Seal around
sensor and wall
Outdoor
drip-hole
$
/(57
'
HWHUP
L
Q
L
QJ W
KH
SURSHU
O
RFDW
L
R
Q
IR
U
W
KH
2XWGRR
U
6HQVRU
LV
Y
HU\
L
P
S
RUWDQW
7KH
%&3
:
ZLOO
E
DV
H
L
WV
RSHUDWLR
Q
RQ
W
K
H
RXWGRR
U
W
HPSHUD
W
XU
H
LQ
IR
UP
DW
L
R
QL
W
U
HFH
LY
HV
I
U
RP
W
KL
V
ORFDW
L
R
Q
,
I
W
K
H
VHQVRU
L
V
L
Q
W
K
H
V
X
Q
RU
FRYHUH
G
ZL
W
K
L
FH
L
W
V
U
HD
GL
Q
J
ZLOO
E
H
G
LIIHUHQ
W
I
UR
P
WK
H
D
FWXD
O
2
XWGRR
U
W
HP
S
HUDWXUH
10
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
:,5,1*
:,5,1*7+(32:(57(50,1$/6
%ULQJWKH9$&+]SRZHUZLUHVWKURXJKWKHERWWRP.QRFNRXWRIWKHHQFORVXUH
&ODVVYROWDJHZLULQJPXVWHQWHUWKHHQFORVXUHWKURXJKDGLIIHUHQWRSHQLQJIURPDQ\&ODVVYROWDJHZLULQJ
&RQQHFWWKHKRWOLQHWRWKHWHUPLQDOPDUNHG/
&RQQHFWWKHQHXWUDOOLQHWRWKHWHUPLQDOPDUNHG1
:$51,1*
&ODVVYROWDJHZLULQJPXVWHQWHUWKHHQFORVXUHWKURXJKDGLIIHUHQWRSHQLQJIURPDQ\&ODVVYROWDJH
ZLULQJ:HLO0F/DLQUHFRPPHQGVLQVWDOOLQJDVXUJHVXSSUHVVRURQWKHSRZHUVRXUFHWRWKH%&3:
Line
Neutral
120VAC
Power Source
PWR
LN
12
:$51,1*
&RQQHFWWKH7HPSHUDWXUHVHQVRUVKLHOGDWWKHFRQWUROWRWKHVHQVRUWHUPLQDOPDUNHG2
'RQRWFRQQHFWWKH6KLHOGDWWKHVHQVRUHQG
27 2928 3
02
5 26
TEMP
Sensor Shiled
System Sensor
OUTDOO
R
TEMP
:,5,1*7+(6(16256
6<67(07(03(5$785(6(1625:,5,1*7(50,1$/6
7KH%&3:LVGHVLJQHGWREHFRQQHFWHGWRDWHPSHUDWXUHVHQVRUIRULPPHUVLRQLQD,'ZHOO
located on the common header. Contact the factory for additional temperature sensor options.
7HPSHUDWXUHVHQVRUZLUHVFDQEHH[WHQGHGXSWR¶E\VSOLFLQJVKLHOGHGFRQGXFWRUFDEOH%HOGHQRU
equivalent (#18/2)).
7HPSHUDWXUHVHQVRUVKDYHQRSRODULW\&RQQHFWWKHWZRZLUHVIURPWKHVHQVRUWRWKH%&3:WHUPLQDOVPDUNHG
SYSTEM TEMP 27, 28.
&RQQHFWWKHVKLHOGWRWKHFLUFOHGWHUPLQDOZLWKRQHRIWKHVHQVRUZLUHV'RQRWFRQQHFWWKHVKLHOGDWWKH
sensor end.
287'2256(1625:,5,1*7(50,1$/6
:KHQ2XWGRRU5HVHWLVVHOHFWHGWKH%&3:ZLOOYDU\WKHV\VWHPWDUJHWEDVHGRQWKHRXWGRRUWHPSHUDWXUH
:KHWKHULQ6HW3RLQWRU2XWGRRU5HVHWPRGHVWKHRXWGRRUVHQVRUFDQEHXVHGDVDQ2XWGRRU&XWRII7KH%&3
8W will disable all Boilers when the outdoor temperature is above the adjustable Outdoor Cutoff temperature.
This feature will automatically be activated when an outdoor sensor is connected.
)RUDQRXWGRRUVHQVRUXVHWKHSURYLGHG:HLO0F/DLQRXWGRRUVHQVRU
7KHVHQVRUZLUHVFDQEHH[WHQGHGXSWR¶XVLQJVKLHOGHGFRQGXFWRUFDEOH%HOGHQRUHTXLYDOHQW
(#18/2)).
7HPSHUDWXUHVHQVRUVKDYHQRSRODULW\&RQQHFWWKHZLUHVIURPWKHRXWGRRUVHQVRUWRWKH%&3:WHUPLQDOV
marked OUTDOOR TEMP - 29, 30. Connect the shield to the circled terminal 30 with one of the sensor wires.
Do not connect the shield at the sensor end.
Sensor Shiled
Outdoor Sensor
29 31
D
328 30 32
MP
OUTDOOR
TEMP
RETURN
TEMP
5(78516(1625:,5,1*7(50,1$/6237,21$/$9$,/$%/(,1+($7,1*21/<
,IWKH5HWXUQ6HQVRULVFRQQHFWHGPXVWEHSXUFKDVHGVHSDUDWHO\WKH%&3:ZLOOUHFRJQL]HLWDQGDOWHUQDWHLWV
temperature on the display with the Target temperature. If the Return is below the Minimum Return, the BCP-
8W will sequence stages based on the Return Sensor, Minimum Return, Calculated Target, and the actual System
Temperature.
7KH5HWXUQRQWKH%&3:LVGHVLJQHGWREHFRQQHFWHGWRDWHPSHUDWXUHVHQVRUWKDWFDQEHSXUFKDVHGVHSDUDWHO\
IRULPPHUVLRQLQD,'ZHOO
7KHVHQVRUZLUHVFDQEHH[WHQGHGXSWR¶XVLQJVKLHOGHGFRQGXFWRUFDEOH%HOGHQRUHTXLYDOHQW
(#18/2)).
7HPSHUDWXUHVHQVRUVKDYHQRSRODULW\&RQQHFWWKHZLUHVIURPWKHRXWGRRUVHQVRUWRWKH%&3:WHUPLQDOV
marked OUTDOOR TEMP - 31, 32.
&RQQHFWWKHVKLHOGWRWKHFLUFOHGWHUPLQDO32 with one of the sensor wires. Do not connect it to the sensor.
31
DHW
3330 32 34
Sensor Shiled
Return Sensor
D
OOR
MP
RETURN
TEMP
11
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
:,5,1*7+('20(67,&+27:$7(5'+:6(16257(50,1$/6
7KH'+:LQSXWFDQEHXVHGWRUDLVHV\VWHP6HW3RLQWWR)RU0D[LPXP7DUJHWZKLFKHYHULVORZHU7KH
DHW Piping on page 18 must be selected from the Startup Menu to determine the DHW Priority options.
DHW Call terminals can be connected to either a dry-contact or a temperature sensor that can be purchased
VHSDUDWHO\IRULPPHUVLRQLQD,'ZHOO
,IXVLQJDGU\FRQWDFWZLUHDQDTXDVWDWRURWKHUFRQWUROVWRSURYLGHGU\FRQWDFWFORVXUHRQWKHDHW terminals.
,IXVLQJDVHQVRUWKHVHQVRUZLUHVFDQEHH[WHQGHGXSWR¶XVLQJVKLHOGHGFRQGXFWRUFDEOH%HOGHQRU
equivalent (#18/2)).
7HPSHUDWXUHVHQVRUVKDYHQRSRODULW\&RQQHFWWKHZLUHVIURPWKH'+:VHQVRUWRWKH%&3:WHUPLQDOV
marked DHW - 33, 34. Connect the sensor shield to the circled terminal 34 with one of the sensor wires. Do not
connect the shield to the sensor.
,I6KXWGRZQZDVVHOHFWHGDVWKH([WHUQDO,QSXWDQ\'+:FDOOZLOOEHLJQRUHGZKHQWKH6KXWGRZQLVDFWLYH
Sensor Shiled
DHW Sensor
DHW
33 35
3
23436
3
P
SHUTDOWN
/TSTAT
/SETBACK
R
N
P
:,5,1*7+(6+87'2:17(50,1$/6
7KLVIHDWXUHZLOORQO\EHDYDLODEOHZKHQ6KXWGRZQLVVHOHFWHGDVWKH([WHUQDO,QSXW0RGHRQSDJH18.
7KLVIHDWXUHFDQEHXVHGZKHQHYHULWLVGHVLUDEOHWRWXUQRIIWKH%&3:VWDJHRXWSXWVIURPDUHPRWHORFDWLRQRU
another controller (i.e. EMS input).
:KHQWKH6KXWGRZQLVHQDEOHGDOODFWLYHVWDJHVZLOOLPPHGLDWHO\WXUQRII7KH6\VWHP3XPS&RPEXVWLRQ$LU
DQGERLOHUSXPSVRUYDOYHVUHOD\VZLOOUHPDLQHQHUJL]HGIRUWKH5XQ2QGHOD\SHULRGDQGWKHQWXUQRII
7KH6KXWGRZQVLJQDOPXVWEHDGU\FRQWDFWLQSXW1RYROWDJHFDQEHSODFHGDFURVVWKHSHUTDOWN terminals.
%ULQJWKHWZRZLUHVIURPWKHGU\FRQWDFWWRWKHSHUTDOWN- 35,36 terminals.
:KHQ6KXWGRZQLVVHOHFWHG6HWEDFNZLOOEHDYDLODEOHXVLQJWKHSURJUDPPHG'D\1LJKWVFKHGXOH
D
HW
3
3534 36
37 38
PROVE
Shutdown
Dry Contact
SHUTDOWN
/TSTAT
/SETBACK
:,5,1*7+(767$77(50,1$/6
7KLVIHDWXUHFDQEHXVHGZKHQHYHULWLVGHVLUDEOHWRVZLWFKWKH%&3:WRRSHUDWHIURPDUHPRWHORFDWLRQLH
EMS input or thermostat). It will only be available when Tstat is selected as the External Input Mode option
from the Startup menu on page 18.
:KHQWKH7VWDWLVHQDEOHGE\FORVLQJDGU\FRQWDFWWKH%&3:ZLOODFWLYDWHWKHKHDWLQJORJLF
7KH7VWDWVLJQDOPXVWEHDGU\FRQWDFWRQO\1RYROWDJHFDQEHSODFHGDFURVVWKHTSTAT terminals.
%ULQJWKHWZRZLUHVIURPWKHGU\FRQWDFWWRWKHTSTAT- 35,36 terminals.
$IDFWRU\LQVWDOOHGMXPSHUSURYLGHVWKH7VWDWVLJQDO'RQRWUHPRYHWKHMXPSHUXQOHVVLWZLOOEHUHSODFHGE\D
Tstat signal.
:KHQ7VWDWLVVHOHFWHGIURPWKH6WDUWXS([WHUQDO,QSXWPRGH6HWEDFNZLOOEHDYDLODEOHXVLQJWKHSURJUDPPHG
Day/Night schedule.
33 3534 36
37 38
PROVE
SHUTDOWN
/TSTAT
/SETBACK
Auxiliary
Input3
T-Stat
Dry Contact
:,5,1*7+(6(7%$&.7(50,1$/6
7KLVIHDWXUHFDQEHXVHGZKHQHYHULWLVGHVLUDEOHWRVZLWFKWKH%&3:WRRSHUDWHLQ6HWEDFNIURPDUHPRWH
location (i.e. EMS input or external time clock). It will only be available when Setback is selected as the
External Input Mode option from the Startup menu. See page 18.
:KHQWKH6HWEDFNLVHQDEOHGE\FORVLQJDGU\FRQWDFWWKH7DUJHWZLOOFKDQJHE\WKH6HWEDFNYDOXH7KDWLVWKH
Target will be reduced by the Setback value.
7KH6HWEDFNVLJQDOPXVWEHDGU\FRQWDFWRQO\1RYROWDJHFDQEHSODFHGDFURVVWKHSETBACK terminals.
%ULQJWKHWZRZLUHVIURPWKHGU\FRQWDFWWRWKHSETBACK- 35,36 terminals.
:KHQ6HWEDFNLVVHOHFWHG1R'D\1LJKW6FKHGXOLQJZLOOEHDYDLODEOH
D
HW
3
SHUTDOWN
/TSTAT
/SETBACK
3534 36
37 38
PROVE
Setback
Dry Contact
:,5,1*7+(3529(7(50,1$/6
7KH3URYHIHDWXUHLVSURYLGHGWRFKHFNV\VWHPFRPSRQHQWRSHUDWLRQEHIRUHHQHUJL]LQJWKHVWDJHV,WFDQEH
used to check on the Combustion Air Damper by connecting it to the end switch of the damper. In this case,
the Comb. Air Output option must be activated from the Startup Menu on page 18.
,IWKH&RPE$LU'DPSHU2XWSXWRSWLRQZDVQRWDFWLYDWHGWKHPROVE input can be used to check on the
6\VWHP2XWSXW$W\SLFDOXVHRIWKLVIHDWXUHLVWRFKHFNIRUV\VWHPSXPSÀRZEHIRUHHQHUJL]LQJDQ\VWDJH
,IWKHPROVE input is open on a call, the BCP-8W will enable only the System Output. All stage outputs will
be off when the PROVE input is open.
$IDFWRU\LQVWDOOHGMXPSHUSURYLGHVWKH6\VWHP3URYHVLJQDO'RQRWUHPRYHWKHMXPSHUXQOHVVLWZLOOEH
replaced by a System Prove signal.
%ULQJWKHWZRZLUHVIURPWKHGU\FRQWDFWWRWKHPROVE - 37, 38 terminals. No voltage can be placed across the
PROVE terminals
Prove
Dry Contact
RS485
36
37 38
PROVE
D
OWN
T
AT
B
ACK
12
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
:$51,1*
7KH3529(LQSXWFDQQRWEHXVHGDVDVDIHW\OLPLW$OOHTXLSPHQWPXVWKDYHLWVRZQFHUWL¿HGOLPLWDQGVDIHW\
controls as required by local codes. No boiler stage will start unless the Prove terminals are shorted. DO NOT
remove the PROVE jumper supplied unless replacing it with a Prove signal.
:,5,1*7+(6<67(02873877(50,1$/6
7KH6\VWHPRXWSXWKDVD1RUPDOO\2SHQ12UHOD\WKDWDFWVDVDGU\FRQWDFW,WGRHVQRWVRXUFHDQ\SRZHU
&ODVVYROWDJHVPXVWHQWHUWKHHQFORVXUHWKURXJKDGLIIHUHQWRSHQLQJIURPDQ\&ODVVYROWDJHZLULQJ
6\VWHP2XWSXW2SHUDWLRQLQ6HW3RLQW0RGH
7KH6\VWHPRXWSXWUHOD\ZLOOHQHUJL]HZKHQHYHUWKHRXWGRRUWHPSHUDWXUHGURSVEHORZWKH2XWGRRU&XWRIIRU
ZKHQHYHUDVWDJHRXWSXWLVDFWLYH,IQRRXWGRRUVHQVRULVFRQQHFWHGDQGWKHODVWERLOHUUHOD\KDVGHHQHUJL]HG
WKH6\VWHPUHOD\ZLOOUHPDLQHQHUJL]HGIRUDSHULRGVHWE\WKH5XQ2QDQGWKHQGHHQHUJL]H
,IWKHPROVELQSXWLV2SHQWKH6\VWHPUHOD\ZLOOUHPDLQHQHUJL]HGKRZHYHUDOOVWDJHVZLOOEHGHHQHUJL]HG
If a Prove is not required, the factory-installed jumper must remain connected for proper operation.
System
Pump
SYSTEM
DHW
PUMP
17
16 18
ge G
19
Stage H
2120 22
L
N
$W\SLFDOXVHRIWKH6\VWHPRXWSXWLVWRDFWLYDWHDV\VWHPSXPSRULWVVWDUWHU7KHSXPSFDQUXQZKHQHYHUWKHUHLVDFDOOIRU
KHDW:KHQVWDJHVDUHQRORQJHUUHTXLUHGWKHSXPSZLOOVWD\DFWLYHIRUDQDGMXVWDEOH5XQ2QGHOD\DQGWKHQGHHQHUJL]H
6\VWHP2XWSXW2SHUDWLRQLQ5HVHW0RGH
7KH6\VWHPRXWSXWUHOD\ZLOOHQHUJL]HZKHQHYHUWKHRXWGRRUWHPSHUDWXUHLVEHORZWKH2XWGRRU&XWRII
:KHQWKHRXWGRRUWHPSHUDWXUHULVHV)DERYHWKH2XWGRRU&XWRIIWKH6\VWHPRXWSXWZLOOUHPDLQHQHUJL]HGIRUWKHSHULRGVHW
by the System Run-OnDQGWKHQGHHQHUJL]H.
:,5,1*7+('+:38037(50,1$/6
The BCP-8W can control the DHW Pump when the DHW Pump Output option is activated from the Startup Menu.
See page 18.
7KH%&3:ZLOOHQHUJL]HWKH'+:3XPSZKHQHYHUWKHUHLVDFDOOIRU'+:XVLQJDGU\FRQWDFWRUZKHQWKH
DHW temperature falls below the DHW Set Point and DHW Differential when using a DHW sensor.
7KH'+:3XPSRXWSXW relay is a Normally Open (N.O.) dry contact. It does not source any power.
&ODVVYROWDJHVPXVWHQWHUWKHHQFORVXUHWKURXJKDGLIIHUHQWRSHQLQJIURPDQ\&ODVVYROWDJHZLULQJ
,I6KXWGRZQZDVVHOHFWHGDVWKH([WHUQDO,QSXWSDJH18), The BCP-8W will ignore a DHW call when the
Shutdown is active.
DHW
Pump
DHW
PUMP
7
18
19
a
ge H
2120 22
23
CO
M
A
I
SYSTEM
L
N
:,5,1*7+(&20%867,21$,5'$03(57(50,1$/6
The BCP-8W can control the Combustion Air Damper when the Comb. Air Output option is activated in the Startup
Menu (Page 18). In addition, the PROVE input will function as the Combustion Air Damper status checker.
7KH%&3:ZLOOHQHUJL]HWKH&RPEXVWLRQ$LU'DPSHUUHOD\ZKHQHYHUWKHUHLVDFDOOWRHQHUJL]HDQ\RIWKH
boiler stages.
7KH&RPEXVWLRQ$LURXWSXW relay is a Normally Open (N.O.) dry contact. It does not source any power.
&ODVVYROWDJHVPXVWHQWHUWKHHQFORVXUHWKURXJKDGLIIHUHQWRSHQLQJIURPDQ\&ODVVYROWDJHZLULQJ
DHW
PUMP
21
0
22
23 24
COMB.
AIR
E
M
Comb.
Air
Damper
L
N
:,5,1*7+(67$*(67(50,1$/672
7KH%&3:FDQEHFRQ¿JXUHGWRRSHUDWHWKHVWDJHVRIWKHERLOHUV0RUHRYHULWFDQEHFRQ¿JXUHGWR
operate the boiler pumps or valves in addition to the boiler stages.
7KHUHOD\VDUHN.O. dry contacts only. They do not source any voltage.
:LUHWKH12UHOD\FRQWDFWVLQVHULHVZLWKWKHERLOHU¶VOLPLWFLUFXLW
&ODVVYROWDJHVPXVWHQWHUWKHHQFORVXUHWKURXJKDGLIIHUHQWNQRFNRXWIURPDQ\&ODVVYROWDJH
wiring.
:,5,1*7+(67$*(2873876
(DFK6WDJHRXWSXW$WKURXJK+KDVRQH12UHOD\
:KHQZLULQJVHYHUDOPXOWLVWDJHERLOHUVVWDUWZLWKWKHORZHUVWDJHRIWKH¿UVWERLOHUDQGZLUHLWWR
Output A, followed by the higher stage of the same boiler and wire it to Stage B.
35
Stage A
7
Stage B
9
Stage C
11
Stage
Stage D
6 8 10 14
Lo Hi
Unit1
Stages
Lo Hi
Unit2
Stages
13
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
:,5,1*7+(3803259$/9(2873876
,IWKH%&3:LVFRQ¿JXUHGWRRSHUDWH6WDJH3XPSVRU9DOYHV7KH\PXVWEHZLUHGWRWKHVWDJH
RXWSXWDIWHUWKHKLJKHVWVWDJHIRUWKDWERLOHU7KDWLVWKHORZVWDJHIRUWKH¿UVWERLOHUPXVWEH
connected to A and the higher stage of the same boiler must be connected to Stage B. The boiler
valve or pump for the same boiler must be connected to Stage C.
N
2
35
Stage A
7
Stage B
9
Stage C
11 13
Stage E Stage F
Stage D
6 8 10 12 144
Lo Hi
Unit1
Stages
Unit1
Pump
Lo Hi
Unit2
Stages
Unit2
Pump
L
N
&211(&7,1*727+(%&3;3$1(/6$1'02',17(5)$&(
7KH%&3:LVHTXLSSHGZLWKDSKRQHVRFNHW56WRFRQQHFWWRWKH%&3;([WHQVLRQSDQHOVRUWKH02',QWHUIDFH
XVLQJWKHSURYLGHGSLQSKRQHFDEOH
(DFK%&3;([WHQVLRQKDVWZR56FRPPXQLFDWLRQSRUWV8VHRQHWRFRQQHFWWRWKH%&3:8VHWKHRWKHUSRUWWR
connect to the second extension or the 420MOD Interface.
$GGLWLRQDOFRPSDWLEOHGHYLFHVFDQXWLOL]HWKHVHFRQG56FRQQHFWLRQRQWKHVHFRQG%&3;([WHQVLRQ$QH[DPSOHZRXOG
EHWRXVHWKH02',QWHUIDFHWRSURYLGHDP$VHWSRLQWVLJQDOWRWKH%&3:
6(/(&7,1*7+(%&3;3$1(//(77(5
7KH%&3:LVFDSDEOHRIFRPPXQLFDWLQJWRWZR%&3;([WHQVLRQV+RZHYHUHDFK
H[WHQVLRQPXVWEHLGHQWL¿HGDVHLWKHU$RU%XVLQJWKHVZLWFKRQHDFKH[WHQVLRQWRDYRLGKDYLQJ
communication problem.
([WHQVLRQ$6ZLWFKLVVHWWR$ZLOORSHUDWHVWDJHV,WKURXJK3:KLOH([WHQVLRQ%
(Switch is set to "B") will operate stages "Q" through "X".
Ext A
Ext B
Connecting BCP-8 to Two Extension Panels
and 420MOD Interface using RS485
BCP-8
HYDRONIC SEQUENCING CONTROL
SYSTEM
DHW PUMP
INPUT RATINGS:
115VAC 60Hz, 12VA MAX
Use Copper Conductors Only.
CAUTION:
Risk of Electric Shock.
PWR
LN
12
SENSORS MUST BE GOLD SERIES
SYSTEM
3
DHW
PUMP
5
Stage A
7
Stage B
9
Stage C
11 13
Stage E
15
Stage F
17
Stage D
6 8 10 12 14
16 18
RS485
SYS=144F OD=35F
<AB
>DE GH JK
HI LO -- OFF
4
Stage G
19
Stage H
21
OUTDOOR
TEMP
27 29 31
DHW
33
SHUTDOWN
/TSTAT
/SETBACK
35
RETURN
TEMP
20 22 28 30 32 34 36
STAGE MENU
Stage E
Stage F
Stage G
Stage H
Stage A
Stage B
Stage C
Stage D
25 26
PRESS
+ -
37 38
PROVE
TEMP
PROGRAM RUN
23 24
COMB.
AIR
DO NOT APPLY ANY VOLTAGE TO INPUT TERMINALS
COMB. AIR
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
LISTED
99RA
CUS
O
P
Power
CAUTION:
Risk of Electric Shock.
PWR
LN
12
I
34
J
56
K
78
L
910
M
11 12
EXTENSION
MODULE
RS-485
Ext A
INPUT RATINGS:
115VAC 60Hz, 12VA MAX
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
Ext B
L
M
N
Comm
T
U
V
W
X
N
13 14
Q S UR T V
BCP-8X A
Use Copper Conductors Only.
I
J
K
Q
R
S
O
15 16
P
17 18
W X
O
P
Power
CAUTION:
Risk of Electric Shock.
PWR
LN
12
I
34
J
56
K
78
L
910
M
11 12
EXTENSION
MODULE
RS-485
Ext A
INPUT RATINGS:
115VAC 60Hz, 12VA MAX
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
Ext B
L
M
N
Comm
T
U
V
W
X
N
13 14
Q S UR T V
BCP-8X B
Use Copper Conductors Only.
I
J
K
Q
R
S
O
15 16
P
17 18
W X
4-20 mA EMS
4-20mA INPUT
+
Signal GND
1
2
3
RS485
EXTENSION
CONNECTORS
420MOD EMS Interface
4-20mA
EMS Signal
(+)
(-)
6 Pin Phone Cable (provided with Extension)
6 Pin Phone Cable (provided with 420MOD EMS Interface)
SEQUENCING CONTROL EXTENSION
BCP-8X
SEQUENCING CONTROL EXTENSION
BCP-8X
BCP-8W
14
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
S
-
-----
SETTINGS
------
S
eason
Wi
n
t
er
<
Outdoor Rst>
1
35 F
Set Point
135
F
EMS Set Point
135
F
Mi
n
R
e
t
urn
110
F
<
System Settings>
<
Maintenance>
<System Startup>
BACK SELECT
,
167$//(5
0
(18
6
(
4
8(1&(
SYS
=
168
FOD
=
45
F
TGT
=
172
F
ABC <EFG >
---- LO
BOILER MENU
-
--- CONTROL MODE --
-
Outdoor Reset
Set Point
EMS 4-20m
A
BACK SAVE
-
--- DISPLAY UNIT --
-
F
C
BACK SAVE
EMS 4mA SET POINT
100
F
[
]
BACK SAVE
E
MS 20mA SET POIN
T
170
F
[
]
BACK SAVE
-
---
DHW PIPING
---
Parallel
Primary/Secondar
y
BACK SAVE
-
-DHW PUMP OUTPUT--
No
Yes
BACK SAVE
-
-COMB. AIR OUTPUT--
No
Yes
BACK SAVE
-
-- BURNER TYPE ----
On/Off
2
-
Stage
3
-Stage
4
-Stage
BACK SAVE
-
-
BOILER OUTPUT
-
-
None
Pump
V
alve
BACK SAVE
-
-
TOTAL BOILERS
-
-
8
[
]
BACK SAVE
-
-----
STAGING
------
M
ultiple Outputs
S
ingle Outpu
t
BACK SAVE
-
-----
SEQUENCE
-------
Lo/Hi/Lo/Hi
Lo/Lo/Hi/Hi
BACK SAVE
-
-- CONTROL LOGIC---
PID
OSS
BACK SAVE
-
-- SENSOR FAULT ---
Stages On
Stages Off
BACK SAVE
ARE YOU SURE
?
No
Yes
BACK SAVE
(
06 6(
7
32,17
-
---
MAINTENANCE
----
U
n
it
F
Present Time
12
:
30P
<
Sensor Trim>
<Hi
s
t
or
i
es
>
<Configuration>
BACK SELECT
--- SENSOR TRIM ---
-
System Trim
+0
F
Outdoor Trim
+0
F
Return Trim
+0
F
D
HW Trim +0 F
BACK SELECT
Sys=12
0
F
1
0:00AM
BACK NEXT
BCP
-
8W V1.00
Outdoor reset
D
ay/Night Schedul
e
D
HW Parallel
BACK SELECT
$
/
(57
7RDFFHVV,QVWDOOHU0HQXKROG
do
wn th
e
M
e
n
u
bu
tt
o
n f
o
r
o
v
er
t
h
ree secon
ds
.
7REHDEOHWRFKDQ
J
HWKH%
&
3:
s
ettings the Program/Run Switch
m
ust
b
e set to
P
rogra
m
.
6
6
7$5783
&
0
$,17(1$1
&
(
-
-
EXTERNAL INPUT -
Shutdown
Tstat
Setback
BACK SAVE
15
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
S
-
----
SETTINGS
-----
-
Season
Winter
<O
u
td
oor
R
s
t>
135
F
S
et Poin
t
1
35
F
EMS Set Point
135
F
Min Return
110
F
<System Settings>
<
Maintenance>
<
System Startup>
BACK SELECT
----
SEASON
--
-
Winter
Summe
r
BACK SAVE
--
OUTDOOR RESET
-
Reset Ratio
7
Target Offset +0 F
Outdoor Cutoff 65 F
Min.Target
120
F
Max.Target
120
F
BACK SELECT
-
--- RESET RATIO ---
C
us
t
om
1(8.00
OD
:
1.00
SYS)
2(4.00
OD
:
1.00
SYS)
3
(3.00
O
D:1.00
S
YS)
4(2
.
00
OD
:
1
.
00
SYS)
5(1.50
OD
:
1.00
SYS)
6(1.25
OD
:
1.00
SYS)
7(1.00
O
D:1.00
S
YS)
8(1.00
O
D:1.25
S
YS)
9(1.00
O
D:1.50
S
YS)
10(1.00
OD
:
2.00
SYS)
11(1.00
OD
:
3.00
SYS)
12(1.00 OD:4.00
S
YS)
BACK SAVE
-
- SET SYS TEMP.1
-
100
F
[
]
]
BACK SAVE
--
AT OD TEMP.1
---
7
0
F
[
]
]
BACK SAVE
--
SET SYS TEMP.2
-
170
F
[
]
BACK SAVE
-- AT OD TEMP.2 ---
0
F
[
]
BACK SAVE
-- TARGET OFFSET --
-
+
0
F
[
]
BACK SAVE
-- OUTDOOR CUTOFF -
-
60
F
[
]
BACK SAVE
---- MIN TARGET ---
-
140
F
[
]
BACK SAVE
----
MAX TARGET
---
-
20
0
F
[
]
BACK SAVE
-
----
SET POINT
----
-
140
F
[
]
BACK SAVE
-
-
EMS SET POINT
-
-
140 F
BACK SAVE
- SYSTEM SETTINGS -
<Stage Settings>
<Setback Schedule>
<DHW Settings
>
Setback
0
F
Run
-
On
2min
Pump Exercise
Off
BACK SELECT
-
---
MIN RETURN
----
120
F
[
]
BACK SAVE
-
---
RETURN LAG
----
2min
[
]
BACK SAVE
---
PUMP EXERCISE
-
-
Off
On
BACK SAVE
-
------
RUN
-
ON
------
-
2min
[
]
BACK SAVE
-
-----
SETBACK
------
-
0 F
[ ]
BACK SAVE
-- DHW SETTINGS ---
D
HW Temp
.
120 F
DHW
Prior
Tmr
60min
DHW Set Point
120
F
D
HW Diff
.
5 F
BACK SELECT
DHW PRIORITY TIMER
2min
[
]
BACK SAVE
-
-
DHW SET POINT
--
140
F
[
]
BACK SAVE
DHW DIFFERENTIAL
10
F
[
]
]
BACK SAVE
SYS=168 F OD=45
F
TGT
=
172
F
ABC
<EFG
>
---- L
O
BOILER MENU
'+:
6
6
(77,1
*
*
6
6
6
5(
6
(
7
2
5$7,
2
6
6
(
7
2
3
2
,1
7
16
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
S
-----
SETTINGS
------
Season
W
inter
<Outdoor Rst>
1
35
F
Set Point
135
F
EMS Set Point
135
F
Mi
n
R
e
t
urn
110
F
<System Settings>
<Maintenance>
<System Startup>
BACK SELECT
- SYSTEM SETTINGS
-
<Stage Settings
>
<Setback Schedule>
<DHW Settings>
Setback
0
F
Run-O
n
2
min
Pump Exercise
O
ff
BACK SELECT
--
STAGE SETTINGS
-
-
Reaction Time
1min
Purge Delay
0.0min
Min Runtim
e
2min
Standby Dela
y
10min
Last
Stage
Hold
5
F
Throttle
2
F
<Lead Settings
>
BACK SELECT
--
LEAD SETTINGS
--
Lead Boiler
AB
R
otate Mode Time
BACK SELECT
--
REACTION TIME
--
1mi
n
[
]
]
BACK SAVE
---
PURGE DELAY
---
-
1.0min
[ ]
BACK SAVE
- MINIMUM RUNTIME
-
2mi
n
[
]
]
BACK SAVE
-- STANDBY DELAY --
10mi
n
[
]
]
BACK SAVE
LAST STAGE HOLD
0
F
[]
BACK SAVE
SYS=
168
F OD=
45
F
TGT
=
172
F
ABC <EF
G
>
---- LO
BOILER MENU
-
---- BOILER AB ----
-
Mode
Auto
Runtime
58Hrs
<Prev Boiler>
<Next Boiler>
BACK SAVE
-
- BOILER AB MODE -
A
uto
S
tandby
Off
On
BACK SAVE
B
OILER AB RUNTIM
E
58hrs
BACK CLEAR OK
S
ETBACK SCHEDUL
E
Setbac
k
0
F
Present Time
**:**
Day Schdul
7
:
00Am
Night Schdu
l
7
:00P
m
BACK SELECT
------
SETBACK
------
-
0
F
[
]
BACK SAVE
-- NIGHT SCHEDULE -
-
07
:**
Pm
BACK SAVE
--
DAY SCHEDULE
---
-
07:**Am
BACK SAVE
- SET PRESENT TIME
**:*
*
BACK SAVE
--
LEAD BOILER
--
A
B
CD
BACK SELECT
-- LEAD ROTATION --
T
ime
Manual
FOFO
BACK SELECT
AUTO ROTATE PERIOD
24hr
s
[
]
BACK SAVE
-
-------
BOOST
---------
0
F
[
]
BACK SAVE
-
-----
BOOST PERIOD
--
-
30min
[
]
]
BACK SAVE
-- THROTTLE RANGE -
-
2
F
[]
BACK SAVE
6
6
7
$
*
*
(
6
6
(77,
1
*
*
6
6
6& 6
6&
+('
8
/(
6
1
R
W
$
YD
LO
D
EOH
Z
K
H
Q
6
HWEDF
N
LV
6
HOHFWH
G
I
UR
P
S
6
WDUWX
S
0
HQX
6
6
7
$
*
*
(
0(18
17
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
67$57836(77,1*6
Can be accessed by holding down the Menu
button for over three seconds.
352*5$0&+$1*(6(77,1*6
To be able to change the BCP-8W settings the Program/Run Switch must be set to Program.
The switch is located under the Enclosure Wiring Cover for security. The Enclosure Wiring
Cover can be securely closed using a padlock.
PROGRAM RUN
67$57836(48(1&(
Hold Button: MENU/<System Startup>
:KHQSRZHUHGWKH%&3:SHUIRUPVDVHOIWHVWRQLWVFRPSRQHQWV$IWHUWKHVHOIWHVW
GLDJQRVWLFVKDYHEHHQVXFFHVVIXOO\FRPSOHWHGWKH%&3:ZLOOLQLWLDOL]HWKHSDQHO
2QWKH¿UVWSRZHUXSWKH6\VWHP6WDUWXSVFUHHQZLOODSSHDUDIWHUWKHLQLWLDOL]DWLRQLV
FRPSOHWH,ILWGRHVQ¶WWKH%&3:KDVDOUHDG\EHHQFRQ¿JXUHG
ARE YOU SURE?
No
Yes
BACK SAVE
7KH6\VWHP6WDUWXSPHQXVHWVWKHPDLQSDUDPHWHUVDVWKHW\SHRIVHQVRUWKHVHTXHQFLQJPRGHDQGPDQ\RWKHUSDUDPHWHUV
described in this section.
%HIRUHHQWHULQJWKH6WDUWXSPHQXVHYHUDOZDUQLQJVZLOODOHUW\RXWRWKHFRQVHTXHQFHVRIPDNLQJ6WDUWXSFKDQJHV
&21752/02'(
2XWGRRU5HVHW6HW3RLQW(06P$ 'HIDXOW2XWGRRU5HVHW
Hold Button: MENU/<System Startup>/..../Control Mode
2XWGRRU5HVHWSURYLGHVDYDULDEOHVHWSRLQWEDVHGRQRXWGRRUWHPSHUDWXUH
2XWGRRU5HVHWPRGHUHTXLUHVWKHXVHRIDQRXWGRRUVHQVRU'2127VHOHFW2XWGRRU
Reset without an outdoor sensor.
---- CONTROL MODE ---
Outdoor Reset
Set Point
EMS 4-20mA
BACK SAVE
6HW3RLQWPRGHGRHVQRWUHTXLUHDQRXWGRRUVHQVRU,IDQRXWGRRUVHQVRULVFRQQHFWHGLQ6HW3RLQWPRGHLWZLOOEHXVHGRQO\DV
an Outdoor Cutoff point. That is, to turn the stages, system, and Comb. Air relays off.
7KH(06P$DOORZVWKH%&3:WRUHFHLYHDQH[WHUQDOVHWSRLQWIURPDQ(06%06V\VWHP7KLVRSWLRQUHTXLUHVWKHXVH
RIWKH02',QWHUIDFH
<RXPXVWVHOHFWWKHP$PLQDQGP$PD[6HW3RLQWYDOXHVLQWKHIROORZLQJVFUHHQV
&RQQHFWWKH02',QWHUIDFHWRWKH%&3:56FRQQHFWLRQXVLQJWKHSKRQHFDEOHSURYLGHGZLWKWKH02'LQWHUIDFH
',63/$<81,7
º)º& 'HIDXOWºF
Hold Button: MENU/<System Startup>/..../Display Unit
7KH%&3:FDQFRQWUROERLOHUVLQK\GURQLFHQYLURQPHQWZKHUHWKHWHPSHUDWXUHLV
the critical factor. It allows the user to display temperature information and settings in
either ºF (Fahrenheit) or ºC (Celsius). Select the display unit that is best suited for your
application.
---- DISPLAY UNIT ---
F
C
BACK SAVE
6(77,1*7+(0$$1'0$6(732,176$9$,/$%/(,10$(0621/<
P$IURP)&WR)& 'HIDXOW)&
P$IURP)&WR)& 'HIDXOW)&
Hold Button: MENU/<System Startup>/..../EMS 4mA Set Point/EMS 20mA Set Point
,I(06P$LVVHOHFWHGIURPWKH&RQWURO0RGHPHQXDVWKHWHPSHUDWXUHVHWSRLQW
VRXUFHWKHXVHUPXVWSXUFKDVHD:HLO0F/DLQ02',QWHUIDFHWR
accept the 4-20mA signal and transmit it to the BCP-8W.
EMS 4mA SET POINT
100 F
[ ]
BACK SAVE
,QDGGLWLRQWKHXVHUZLOOQHHGWRVHWWKHWHPSHUDWXUHUDQJHSDUDPHWHUV)LUVWVHWWKHP$
temperature set point, then the 20mA temperature set point.
7RVKXWGRZQWKHFRQWUROXVLQJWKH(06VLJQDOVHQGDVLJQDOWKDWLVDERYHRUEHORZWKH
2-22mA range. The display will show the message "Shutdown by EMS" and all
VWDJHVZLOOGHHQHUJL]H+RZHYHUWKH6\VWHP&RPE$LUDQGERLOHU3XPSVDQG9DOYHV
ZLOOFRQWLQXHIRUWKH5XQ2QGHOD\SHULRGDQGWKHQGHHQHUJL]H
EMS 20mA SET POINT
170 F
[ ]
BACK SAVE
$/(57
$JRRGSUDFWLFHDIWHUSHUIRUPLQJDQ\6WDUWXSPHQXPRGL¿FDWLRQVLVWR
check all operating settings and adjustments to match the new settings.
18
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
'+:3,3,1*
3DUDOOHO3ULPDU\6HFRQGDU\ 'HIDXOW3DUDOOHO
Hold Button: MENU/<System Startup>/..../DHW Piping
:KHQ3DUDOOHOLVVHOHFWHGWKH%&3:ZLOORIIHUD'+:3ULRULW\7LPHU7KH'+:
priority will only take place during heating periods. See the DHW Priority Timer on
page 28.
---- DHW PIPING ---
Parallel
Primary/Secondary
BACK SAVE
7KHSULRULW\ZLOODOORZWKH'+:3XPSUHOD\WRHQHUJL]HZKLOHGHHQHUJL]LQJWKH6\VWHPUHOD\ZKHQWKHUHLVD'+:FDOOGXULQJ
KHDWLQJ+RZHYHUGXULQJ6XPPHURQO\WKH'+:3XPSUHOD\ZLOOHQHUJL]HRQD'+:FDOO
6HOHFWLQJWKH3ULPDU\6HFRQGDU\RSWLRQZLOOHQHUJL]HWKH6\VWHPUHOD\ZLWKWKH'+:3XPSUHOD\ZKHQHYHUWKHUHLVDFDOOIRU
DHW even during the Summer or when outdoor temperature is above the Outdoor Cutoff. No priority will be available.
$/(57
A DHW call can be initiated by either a dry contact or using a Weil McLain Sensor (389-900-230)
for immersion in a 3/8ID well (592-300-023). The use of a sensor will allow the adjustment of the
DHW Set Point and DHW Differential.
'+:3803287387
1R<HV 'HIDXOW<HV
Hold Button: MENU/<System Startup>/..../DHW Pump Output
7KH%&3:FDQFRQWUROWKHRSHUDWLRQRIWKH'+:3XPS7KLVRSWLRQDOORZVWKHXVHU
to select if the BCP-8W should be controlling the DHW Pump or not.
--DHW PUMP OUTPUT--
No
Yes
BACK SAVE
&20%867,21$,5'$03(5287387
1R<HV 'HIDXOW<HV
Hold Button: MENU/<System Startup>/..../Comb. Air Output
7KH%&3:FDQFRQWUROWKHRSHUDWLRQRIWKH&RPEXVWLRQ$LU'DPSHU7KLVRSWLRQ
allows the user to select if the BCP-8W should be controlling the Combustion Air
Damper or not.
- COMB. AIR OUTPUT-
No
Yes
BACK SAVE
,I<HVLVVHOHFWHGWKH%&3:ZLOOHQHUJL]HWKH&RPE$LUUHOD\ZKHQHYHUWKHUHLVDFDOOIRUDERLOHUDQGZLOOXVHWKHPROVE
LQSXWWRFKHFNRQWKHVWDWXVRIWKH&RPEXVWLRQ$LU'DPSHU:KHQWKHODVWVWDJHLVGHHQHUJL]HGWKH&RPE$LUUHOD\ZLOO
UHPDLQHQHUJL]HGIRUWKH5XQ2QSHULRGDQGWKHQGHHQHUJL]H
On a prove failure situation, the message "Wait for Comb. Prove". No boiler stages will be active until the Prove
input is Shorted.
,I3URYHIDLOVDIWHUWKHERLOHUVWDJHVZKHUHHQHUJL]HGWKHVWDJHVZLOOGHHQHUJL]HDQGWKHPHVVDJHComb. Prove
FailureZLOOGLVSOD\XQWLOWKHVLWXDWLRQLVUHFWL¿HG
,I1RLVVHOHFWHGWKHPROVE input will be used to check System status instead of the Combustion Air Damper.
(;7(51$/,138702'(
6KXWGRZQ7VWDW6HWEDFN 'HIDXOW7VWDW
Hold Button: MENU/<System Startup>/..../External Input
7KH6KXWGRZQIXQFWLRQDOORZVWKH%&3:WRUHFHLYHDUHPRWH6KXWGRZQVLJQDOWR
WHUPLQDOVDQGWRWXUQRIIDOOUHOD\VLQFOXGLQJDOOERLOHUVVWDJHV
:KHQ6KXWGRZQLVVHOHFWHG'+:FDOOVZLOOEHLJQRUHGXQOHVVWKHFRQWUROLVRXWRI
Shutdown.
-- EXTERNAL INPUT -
Shutdown
Tstat
Setback
BACK SAVE
7KH7VWDWRSWLRQJLYHVWHUPLQDOV35 and 36 the capability of functioning as a heat-call. That is, when terminals 35 and 36 are
shorted, the BCP-8W will sequence the stages. However, when they are opened, all stages will turn off. Thus, do not remove
the factory installed jumper unless it was replaced with a Tstat signal.
6HWEDFNLVXVHGWRORZHUWKHVHWSRLQWZKHQOHVVORDGLVUHTXLUHGGXULQJQLJKWVDQGZHHNHQGV
)RUVHWEDFNRSHUDWLRQWKH%&3:FDQHLWKHUXWLOL]HLWVEXLOWLQQLJKWVFKHGXOHDYDLODEOHZKHQ6KXWGRZQRU7VWDWLVVHOHFWHGDV
the External Input, or an external dry contact signal to switch to setback by selecting Setback from this menu.
19
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
%851(57<3(
2Q2II6WDJH6WDJH6WDJH 'HIDXOW2Q2II
Hold Button: MENU/<System Startup>/..../Burner Type
7KH%&3:FDQVHTXHQFHIURPDVLQJOHVWDJHDQGXSWRIRXUVWDJHVSHUERLOHU6HOHFW
the option based on your boiler number of stages.
--- BURNER TYPE ----
On/Off
2-Stage
3-Stage
4-Stage
BACK SAVE
%2,/(5287387
1RQH3XPS9DOYH 'HIDXOW1RQH
Hold Button: MENU/<System Startup>/..../Boiler Output
:KHQ1RQHLVVHOHFWHGWKH%&3:ZLOOVHTXHQFHPXOWLSOHERLOHUVZLWKRXWDQ\
additional boiler pumps or valves.
7KH3XPSRSWLRQDOORZVWKH%&3:WRFRQWUROWKHERLOHUVWDJHVLQDGGLWLRQWRWKHERLOHU
pumps. The pump stage will run for the Run-On delay after the lower stage of that boiler
KDVGHHQHUJL]HG
-- BOILER OUTPUT --
None
Pump
Valve
BACK SAVE
7KH9DOYHRSWLRQIXQFWLRQVVLPLODUWRWKHSXPSRSWLRQH[FHSWWKDWZKHQDOOVWDJHVDUHRIIDQGDIWHUWKH5XQ2QGHOD\KDV
HODSVHGWKH/HDGERLOHUVYDOYHUHOD\ZLOOUHPDLQHQHUJL]HGWRDOORZIRUÀRZDFURVVWKHV\VWHP7KHOHDGERLOHUVYDOYHZLOO
UHPDLQHQHUJL]HGXQWLOWKHRXWGRRUWHPSHUDWXUHULVHVDERYHWKH2XWGRRU&XWRIIRUZKHQWKH6KXWGRZQRU6XPPHULVDFWLYDWHG
727$/%2,/(56
IURPWR 'HIDXOWYDULHVEDVHGRQ%XUQHU7\SHDQG%RLOHU2XWSXW
Hold Button: MENU/<System Startup>/..../Boiler Output
7KLVRSWLRQLQFRPELQDWLRQZLWK%XUQHU7\SHDQG%RLOHU2XWSXW6WDUWXSRSWLRQVZLOO
determine the total number of outputs the BCP-8W will need to control.
,IWKHWRWDOQXPEHURIVWDJHVVHOHFWHGLQFOXGLQJERLOHUSXPSVRUYDOYHVLVPRUHWKDQWKH
control and extension stages, the additional boilers containing these stages will have CE
DVWKHLUVWDWXVDQGZLOOVHL]HWRRSHUDWH
-- TOTAL BOILERS --
8
[ ]
BACK SAVE
67$*,1*
0XOWLSOH2XWSXWV6LQJOH2XWSXW 'HIDXOW0XOWLSOH2XWSXWV
Hold Button: MENU/<System Startup>/..../Staging
0RVWERLOHUVZLOOUHTXLUHWKDWWKHKLJKHURXWSXWVWDJHVEHHQHUJL]HGDIWHUWKHORZHURXWSXW
stages. These boilers will need to select the Multiple Output option. That means, both
/RZDQG+LJK2XWSXWVWDJHVPXVWEHHQHUJL]HGWRDFKLHYHWKHERLOHUVPD[LPXPRXWSXW
6RPHHTXLSPHQWUHTXLUHWKDWZKHQWKHKLJKHURXWSXWVWDJHVDUHUHTXLUHGWKHORZHUVWDJHV
PXVWGHHQHUJL]H7RRSHUDWHWKHVHHTXLSPHQWWKHXVHUPXVWVHOHFWWKH6LQJOH2XWSXW
option.
------ STAGING ------
Multiple Outputs
Single Output
BACK SAVE
6(48(1&(
/R+L/R+L/R/R+L+L 'HIDXOW/R+L/R+L
Hold Button: MENU/<System Startup>/..../Sequencing
6RPHERLOHUVUXQPRUHHI¿FLHQWZKHQWKHORZHUVWDJHVDUHHQHUJL]HGDORQHWKDQZLWKWKH
KLJKHUVWDJHV7KHVHW\SHVRIERLOHUVVKRXOGVHOHFW/R/R+L+L7KHQWKH%&3:ZLOO
sequence the lower stages of all Automatic boilers before sequencing the higher stages.
------ SEQUENCE -------
Lo/Hi/Lo/Hi
Lo/Lo/Hi/Hi
BACK SAVE
)RUWKHUHVWRIWKHERLOHUW\SHVWKH/R+L/R+LVKRXOGDOORZWKHVWDJLQJRIWKHORZHUVWDJHRIWKHOHDGERLOHUIROORZHGE\WKH
KLJKHUVWDJHRIWKHVDPHERLOHU7KHQZKHQPRUHVWDJHVDUHQHHGHGLWZLOO¿UHWKHORZHUVWDJHRIWKHODJERLOHUIROORZHGE\WKH
higher stage of the lag boiler.
&21752//2*,&
3,'2662YHU6L]HG6\VWHP 'HIDXOW3,'
Hold Button: MENU/<System Startup>/..../Sequencing
7KH3,'RSWLRQDOORZVWKH%&3:WRVHTXHQFHVWDJHVEDVHGRQWKH5HDFWLRQ7LPH
and the Boiler Minimum Run Time. The PID relies on the rate of change in the System
Temperature. The PID logarithmic calculations foresee changes and sequence stages
EDVHGRQWKRVHFKDQJHV,WLVWKHPRVWHI¿FLHQWRSHUDWLRQIRUPRVWKHDWLQJDSSOLFDWLRQV
--- CONTROL LOGIC---
PID
OSS
BACK SAVE
20
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
7KH2YHUVL]HRSWLRQVHTXHQFHVWDJHVEDVHGRQKRZPDQ\7KURWWOLQJUDQJHVGLIIHUHQWLDOVLVWKHV\VWHPWHPSHUDWXUHDZD\IURP
the Target Temperature. At one Throttling range below the Set Point, only one stage will be on. For each additional Throttling
range below the Set Point, an additional stage will be activated. The last stage on will be allowed to exceed the Set Point by one
Throttling range before turning off that stage. This helps to prevent the last stage from short cycling.
:KHQ3,'LV6HOHFWHGWKHIROORZLQJDUHWKHVHWWLQJVWKDWGLUHFWO\DIIHFWVWKLVPRGHVRSHUDWLRQ
5HDFWLRQ7LPHSJ24 6(/(&7Settings/System Settings/Stage Settings/Reaction Time
3XUJH'HOD\(pg 24) 6(/(&7Settings/System Settings/Stage Settings/Purge Delay
0LQLPXP5XQ7LPH(pg 24) 6(/(&7Settings/System Settings/Stage Settings/Min Runtime
6WDQGE\'HOD\(pg 25) 6(/(&7Settings/System Settings/Stage Settings/Standby Delay
/DVW6WDJH+ROG(pg 25) 6(/(&7Settings/System Settings/Stage Settings/Last Stage Hold
:KHQ2YHUVL]H266LV6HOHFWHGWKHIROORZLQJDUHWKHVHWWLQJVWKDWGLUHFWO\DIIHFWVWKLVPRGHVRSHUDWLRQ
7KURWWOH(pg 25)6(/(&7Settings/System Settings/Stage Settings/Throttle
6(1625)$8/7
6WDJHV2Q6WDJHV2II 'HIDXOW6WDJHV2Q
Hold Button: MENU/<System Startup>/..../Sensor Fault
The Sensor Fault will determine the operating status of all output stages set to Auto or
Standby when a sensor reads Short or Open.
--- SENSOR FAULT ---
Stages On
Stages Off
BACK SAVE
7KH6KXWGRZQRU7VWDWDFWLYDWLRQZLOOWDNHSUHFHGHQFHRYHUWKH6HQVRU)DXOWVWDWXV7KDWPHDQVLI6WDJHV2QLVVHOHFWHGDQG
the Shutdown was active, all stages will be Off on a sensor fault.
5(6(702'(
:KHQ6WDJHV2QLVVHOHFWHGWKH%&3:ZLOOWXUQDOOERLOHUVWDJHV2QZKHQWKH6\VWHPUHDGVShort or Open and the
outdoor is below the Outdoor Cutoff. When the Outdoor reads Short or Open, the BCP-8W will change the Target to the
Maximum Target.
:KHQ6WDJHV2IILVVHOHFWHGWKH%&3:ZLOOWXUQDOOVWDJHV2IIZKHQWKH6\VWHPUHDGVShort or Open. However, when
the Outdoor reads Short or Open, the BCP-8W will change the Target to the Minimum Target.
6(732,1702'(
:KHQ6WDJHV2QLVVHOHFWHGWKH%&3:ZLOOWXUQDOOVWDJHV2QZKHQWKH6\VWHPVHQVRUUHDGVShort or Open.
:KHQ6WDJHV2IILVVHOHFWHGWKH%&3:ZLOOWXUQDOOVWDJHV2IIZKHQWKH6\VWHPVHQVRUUHDGV Short or Open.
7KH2XWGRRU6HQVRU6KRUWRU2SHQVWDWXVZLOOQRWDIIHFWWKHFRQWURORSHUDWLRQLQ6HW3RLQWPRGH
6(77,1*7+(&21752/72)$&725<'()$8/76
To Reset the BCP-8W control to its original factory defaults, power down the control. Hold
down the two right most buttons while powering the control back up until the Total
Clear Started screen appears. The Display will direct you to the Startup menu to
program the control after the defaults are loaded.
TOTAL CLEAR STARTED
Release buttons
and
Please Wait
127(:KHQUHVHWWLQJWKHFRQWUROWRRULJLQDOIDFWRU\GHIDXOWVDOOFRQWUROVHWWLQJVZLOOEHRYHUZULWWHQDQGZLOOQRORQJHUH[LVW
$/(57
Do not turn off power to control until all Startup settings have been made. Otherwise, the next
SRZHUXSZLOOEHVHWWRPDQ\6WDUWXSIDFWRU\VHWWLQJVWKDWPLJKWQRW¿W\RXUDSSOLFDWLRQ
23(5$7,1*6(77,1*6
352*5$0&+$1*(6(77,1*6
To be able to change the BCP-8W settings the Program/Run Switch must be set to Program.
The switch is located under the Enclosure Wiring Cover for security. The Enclosure Wiring
Cover can be securely closed using a padlock.
PROGRAM RUN
21
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
$/(57
DO NOT turn power off to the
BCP-8W when in off-season.
If you do so, the battery will
run down and have to be
replaced. Instead, switch
Season to Summer.
---- SEASON ---
Winter
Summer
BACK SAVE
6($621
:LQWHU6XPPHU 'HIDXOW:LQWHU
Button: MENU/Season
7KH%&3:ZLOOWXUQDOOERLOHUUHOD\VRIIZKHQLWLVLQ6XPPHUVHWWLQJThe Message
'LVSOD\/LQHZLOOUHDGSummer to show status. However, a DHW call will bring the
boilers back on if needed. When in Winter, the BCP-8W will activate the System relay
whenever the Outdoor temperature falls to or below the Outdoor Cutoff setting. In
addition, it will begin heating whenever the System temperature falls below the Set Point
7HPSHUDWXUH7KH0HVVDJH'LVSOD\/LQHZLOOQRWGLVSOD\DQ\VHDVRQLQIRUPDWLRQ
:KHQWKHVHDVRQLVRYHULWLVDJRRGSUDFWLFHWRVZLWFKWKH%&3:6HDVRQVHWWLQJ7KLV
will allow DHW calls to operate the boilers when needed.
5(6(75$7,2
&XVWRP2'6\VWR2'6\V'HIDXOW2'6\V
Hold Button: MENU/<Outdoor Reset>/Reset Ratio ,Q2XWGRRU5HVHW2QO\
7KH5HVHW5DWLRGHWHUPLQHVKRZWKHV\VWHP7DUJHWWHPSHUDWXUHZLOOYDU\EDVHGRQWKH
outdoor temperature. With any of the ratios, the colder it becomes outside, the hotter the
temperature of the system water. (See Understanding Operation Concept on page 5)
:LWKD2'6<6UDWLRWKH6\VWHPZDWHUWHPSHUDWXUH6<6ZLOOLQFUHDVH
UDSLGO\DVWKHRXWVLGHWHPSHUDWXUHIDOOVKLWWLQJWKH0D[LPXPRI)DW)RXWVLGH
WHPSHUDWXUH:LWKD2'6<6UDWLRWKH6\VWHPWHPSHUDWXUH6<6ZLOO
LQFUHDVHVORZO\DVWKHRXWVLGHWHPSHUDWXUHIDOOV(YHQDW)WKHV\VWHPZDWHUZLOO
only be 125°F, and at 22°F outside, the system water will be 112°F. Such a low Reset
5DWLRPLJKWEHXVHGZLWKUDGLDQWÀRRUKHDWLQJDSSOLFDWLRQV
:LWKPRVWEDVHERDUGKHDWLQJDSSOLFDWLRQVD2'6<6) setting is a good
SODFHWRVWDUW:LWKD2'6<6) ratio, for every degree the outside
temperature falls, the system water temperature is increased one degree.
---- RESET RATIO ---
Custom
1(8.00
OD:1.00 SYS)
2(4.00
OD:1.00 SYS)
3(3.00
OD:1.00 SYS)
4(2.00
OD:1.00 SYS)
5(1.50
OD:1.00 SYS)
6(1.25
OD:1.00 SYS)
7(1.00 OD:1.00 SYS)
8(1.00
OD:1.25 SYS)
9(1.00
OD:1.50 SYS)
10(1.00
OD:2.00 SYS)
11(1.00
OD:3.00 SYS)
12(1.00
OD:4.00 SYS)
BACK SAVE
,IUHTXLUHG$GMXVWWKH5(6(75$7,2LQFROGZHDWKHU If the ambient building
temperature are cold in cold weather, move the ratio to a higher selection. That is, if
2'6<6ZDVLQLWLDOO\VHOHFWHGFKDQJHWKHVHOHFWLRQWR2'
(6<6). If the building temperature are too warm in cold weather, move the ratio to a
ORZHUVHOHFWLRQ7KDWLVLI2'6<6) was initially selected, change it to 1.25
2'6<6).
$IWHUVHOHFWLQJWKH5HVHW5DWLRSUHVVLQJWKHSAVE button will switch to the Outdoor
Cutoff setting option.
Outdoor Temperature
Water Temperatur e
70 405060
130
120
110
100
1:4 1:1
4:1
Colder
Warmer
&86720,=('5(6(75$7,2
Hold Button: MENU/<Outdoor Reset>/Reset Ratio/Custom
)RUVLWXDWLRQVZKHUHWKHDYDLODEOHUHVHWUDWLRVGRQRWSURYLGHWKHSHUIHFWEXLOGLQJKHDWORVVHTXLOLEULXPWKHFXVWRPL]HGRSWLRQ
can be used by selecting Custom from the Reset Ratio menu option.
,WSURYLGHVWKHXVHUZLWKWKHFDSDELOLW\RIDVVLJQLQJWZRSRLQWVRQWKHUHVHWUDWLRGLDJUDPDQGXVHWKHOLQHWKDWFRQQHFWVWKRVH
WZRSRLQWVDVWKHFXVWRPL]HGUHVHWUDWLRFXUYH(DFKRIWKHWZRSRLQWVZLOOQHHGDVSHFL¿F6\VWHPDQG2XWGRRU7HPSHUDWXUHWR
identify it on the diagram.
7R6HWWKH¿UVWSRLQWVSHFLI\6\V7HPSDQG2'7HPS7KHQVSHFLI\6\V7HPSDQG2'7HPSWRVHWWKHVHFRQGSRLQW
on the curve. The two points can be anywhere on the line, not necessarily at the ends.
7KHFKDUWVKRZVDQH[DPSOHRIDFXVWRPL]HGFXUYH2'6<6WKDWGRHVQRWH[LVWLQWKHVWDQGDUGFXUYHRSWLRQV,IWKH
RXWGRRUWHPSHUDWXUHUHDFKHV)WKHV\VWHPWDUJHWZLOOEH)
5HPHPEHUWKDWWKH2IIVHW0LQ7DUJHWDQG0D[7DUJHWDSSO\WRDOOUHVHWUDWLRVLQFOXGLQJWKHFXVWRPL]HGUHVHWUDWLRRQHV
22
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
-- SET SYS TEMP.1 -
120 F
[ ]
BACK SAVE
-- SET SYS TEMP.2 -
170 F
[ ]
BACK SAVE
-- AT OD TEMP.1 ---
60 F
[ ]
BACK SAVE
-- AT OD TEMP.2 ---
0 F
[ ]
BACK SAVE
Outdoor Temperature (in °F)
70 60 50 40 2030 0 -1010 -2
0
120
140
130
150
160
170
180
100
110
Water Temperature (in °F)
Custom Reset Ratio
Point1: System=120°F
Oudoor=60°F
Point2: System=170°F
Oudoor=0°F
Point1
Point2
Customized Reset Ratio
Max Target
Min Target
6(732,17127$'-867$%/(,1(0602'(
$GMXVWDEOHIURPº)º&WRº)ºC 'HIDXOWº)º&
Button: MENU/Set Point ,Q6HW3RLQWRU(06P$
7KH6HWSRLQWLVWKHWHPSHUDWXUHYDOXHWKH%&3:ZLOOXVHWRFRQWUROWKHV\VWHP
7KH%&3:ZLOODGGVXEWUDFWRUKROGWKHVWDJHVRIWKHKHDWLQJERLOHUVWRPDLQWDLQWKH
system temperature around the Set point.
----- SET POINT -----
70
F
[ ]
BACK SAVE
7KHV\VWHPFDQEHH[SHFWHGWRÀXFWXDWHDURXQGWKHVHWSRLQW7KHDPRXQWRIÀXFWXDWLRQGHSHQGVRQWKH6\VWHP6HWWLQJVDQG
Stage Settings.
,IDQ2XWGRRU6HQVRUZDVFRQQHFWHGSUHVVLQJWKHSAVE button will continue to the Outdoor Cutoff setting option.
,IWKH(060RGHZDV(QDEOHGWKH6HW3RLQWZLOOEHVHWE\WKH(06%06V\VWHPDQGZLOOEHDYDLODEOHDVDUHDGRQO\
7KHUDQJHRI6HW3RLQWLQWKH(06LVVHWLQWKH6WDUWXSPHQXDWP$DQGP$
$Q\UHDGLQJEHORZWKHP$RUDERYHP$ZLOOLQGLFDWHDShutdown by EMSPHVVDJHRQWKH0HVVDJH/LQH
287'225&872))7(03(5$785(
$GMXVWDEOH2IIIURPº)º&WRº)º&2Q 'HIDXOW)&
Hold Button: MENU/Set Point/Outdoor Cutoff LQ6HW3RLQW
Hold Button: MENU/<Outdoor Reset>/Outdoor Cutoff LQ5HVHW
,Q2XWGRRU5HVHWPRGH2XWGRRU&XWRIIZLOODOZD\VH[LVW+RZHYHULQ6HW3RLQWPRGH
if the outdoor sensor is installed, the Outdoor Cutoff screen will automatically appear
after the temperature Set Point has been selected.
-- OUTDOOR CUTOFF --
70 F
[ ]
BACK SAVE
:KHQWKHRXWGRRUWHPSHUDWXUHIDOOVWRWKHDGMXVWDEOH2XWGRRU&XWRIIWHPSHUDWXUHWKH%&3:ZLOOFRQWURODQGVHTXHQFHWKH
boiler stages to hold the calculated temperature.
:KHQWKHRXWGRRUWHPSHUDWXUHULVHVWRWKH2XWGRRU&XWRIISOXVD)GLIIHUHQWLDOWKH%&3:ZLOOWXUQDOOERLOHUVRII7KH
6\VWHP&RPEXVWLRQ$LU'DPSHUDQGDQ\RWKHU3XPSRUYDOYHUHOD\VWKDWZHUHHQHUJL]HGZLOOUHPDLQHQHUJL]HGIRUWKH5XQ2Q
delayDQGWKHQGHHQHUJL]H.
,QDGGLWLRQWKH2XWGRRU&XWRIIFDQEHVHWWR21RU2)),QWKH21RSWLRQWKH6\VWHP5HOD\ZLOOUXQUHJDUGOHVVRIWKH2XWGRRU
temperature and the burner stages will be active to hold the target water temperature.
,QWKH2))SRVLWLRQWKHV\VWHPSXPSZLOODOZD\VEHRIIDQGDOOVWDJHVZLOOEHRIIDVZHOO
7$5*(72))6(7
$GMXVWDEOHIURPº)º&WRº)º& 'HIDXOWº)º&
Hold Button: MENU/<Outdoor Reset>/Offset LQ2XWGRRU5HVHWRQO\
7KH2IIVHWVHWWLQJPRYHVWKH5HVHW5DWLRFXUYHYHUWLFDOO\7KLVPHDQVWKDWUHJDUGOHVV
of the Outdoor temperature, or the Reset Ratio that has been selected, when the Offset
setting is changed, that change is directly added to or subtracted from the calculated
WHPSHUDWXUH)RUH[DPSOHLIWKH6HW3RLQWWHPSHUDWXUHZDV)DQGWKH2IIVHWZDV
changed from 0° to 10° (an increase of 10°), the Set Point would increase to 140°F.
-- TARGET OFFSET ---
+0 F
[ ]
BACK SAVE
23
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
7KH2IIVHWVHWWLQJGRHVQRWFKDQJHWKHUDWLRVHOHFWLRQ)RULQVWDQFHZLWK2'
6<65HVHW5DWLRWKH6\VWHPZDWHUWHPSHUDWXUHZLOODOZD\VLQFUHDVHRQHGHJUHHIRU
every 1.5 degree change in the Outdoor temperature. What the Offset does is add or
subtract a constant temperature value. (See Understanding Operation Concept on page 5)
7KH0LQLPXPDQG0D[LPXP7DUJHWZLOOWDNHSUHFHGHQFHRYHUWKH2IIVHW7KDWLVLIWKH
0D[7DUJHWZDVVHWWR)DQGWKH2IIVHWZDVVHWWR),IWKHVHWSRLQWZDV)
the new calculated set point based with the Offset should be 175°F. However, it will not
exceed 170°F due to the Maximum Target setting.
,IUHTXLUHG$GMXVWWKH:DWHU2IIVHWLQPLOGZHDWKHU. If the ambient building
temperatures are too warm in the mild weather, decrease the Target Offset. If the
ambient building temperatures are too cold in the mild weather, increase the Target
Offset. The rule of thumb for baseboard radiation is to change the Offset 4°F for every
1°F you wish to change the building temperatures. In radiant heat applications, change
the Offset 1°F or 2°F for every 1°F you wish to change the building temperature.
Outdoor Temperature (in °F)
70 60 50 40 2030 0 -1010 -2
0
120
140
130
150
160
170
180
100
110
Water Temperature (in °F)
Tar
g
et Offset
Offset=10°F
Reset Ratio=1.5 : 1.0
Reset Ratio
Max Target
Min Target
Reset Ratio + 10F Offset
Min Target=120°F
Max Target=170°F
0,1,0807$5*(7
$GMXVWDEOHIURPº)º&WRº)º& 'HIDXOWº)º&
Hold Button: MENU/<Outdoor Reset>/Min. Target LQ2XWGRRU5HVHWRQO\
7KH0LQLPXP7DUJHWPXVWEHVHWWRWKHERLOHUPDQXIDFWXUHU¶VVSHFL¿FDWLRQ7KH%&3
8W will calculate the Set Point based on the Outdoor temperature, the Reset Ratio, and
the Offset value. The BCP-8W will control all boilers to hold either the Set Point
---- MIN TARGET ----
140 F
[ ]
BACK SAVE
temperature, or the Minimum Target, whichever is higher.
7KH0LQLPXP7DUJHWPXVWEHDWOHDVW)ORZHUWKDQWKH0D[LPXP7DUJHW6HHQH[WVHWWLQJ
0$;,0807$5*(7
$GMXVWDEOHIURPº)º&WRº)º& 'HIDXOWº)º&
Hold Button: MENU/<Outdoor Reset>/Max. Target LQ2XWGRRU5HVHWRQO\
7KLVLVWKHKLJKHVW7DUJHWWHPSHUDWXUHWKH%&3:ZLOOFDOFXODWHIRUWKHKHDWLQJV\VWHP
:KHQXVLQJLQÀRRUUDGLDQWV\VWHPLWVKRXOGEHVHWDFFRUGLQJWRWKHWXELQJRUÀRRU
PDQXIDFWXUHU¶VVSHFL¿FDWLRQ
7KH0D[LPXP7DUJHWPXVWEHDWOHDVW)KLJKHUWKDQWKH0LQLPXP7DUJHW6HH
previous setting)..
---- MAX TARGET ----
200 F
[ ]
BACK SAVE
%2,/(50,1,0805(7851
When a return sensor is connected to the BCP-8W, it will monitor and control the boiler return. It does that by monitoring the Target
WHPSHUDWXUH7*76\VWHPWHPSHUDWXUH6<60LQLPXP5HWXUQDQGDFWXDOUHWXUQ571:KHQWKH%&3:IRUHVHHVWKDWDORZ
return will occur, it will increase the Target automatically as an effort to increase the return temperature. See Return Sensor Wiring on
page 10.
0,1,0805(7851
$GMXVWDEOH2IIIURPº)º&WRº)º& 'HIDXOW2II
Hold Button: MENU/Min. Return
7KH0LQLPXP5HWXUQLVWKHFULWLFDOWHPSHUDWXUHDWZKLFKWKHUHWXUQVKRXOGEHDERYH
Normally, this setting is provided by the boiler manufacturer or the system engineer.
---- MIN RETURN ----
OFF
[ ]
BACK SAVE
7KH%&3:ZLOOXVHWKDWYDOXHDVDJXLGH,WZLOOVWDUWWRDGGDGGLWLRQDOVWDJHVLILWIRUHVHHVWKDWWKH571WHPSHUDWXUHZLOO
drop below the Min. Return. During that period, it will display "Hold Return at 120 F" in the Display Message
/LQHWRLQGLFDWHWKDWWKH%&3:LVVHTXHQFLQJERLOHUVWRSURWHFWWKHUHWXUQIURPGURSSLQJEHORZWKH0LQLPXP5HWXUQ
0RVWFRQGHQVLQJERLOHUVZLOOUXQPRUHHI¿FLHQWZLWK&RROHUUHWXUQWHPSHUDWXUHV,QWKLVFDVHVHOHFWWKH2IIRSWLRQRQWKH
Minimum Return to allow the monitoring of the return on the display without sequencing the boiler stages.
24
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
5(7851/$*
$GMXVWDEOHIURPWRPLQXWHV 'HIDXOWPLQXWHV
Hold Button: MENU/Min. Return/Return Lag
,WLVWKHWLPHLWWDNHVIRUWKHV\VWHPUHWXUQWRFKDQJHDIWHUVHTXHQFLQJWKHVWDJHV
,QLWLDOO\DGMXVWWKLVYDOXHWRHTXDOWKH5HDFWLRQ7LPH7KHQLQH[WUHPHFROGZHDWKHU
monitor the return making sure it is about 10°F above the Minimum Return setting and
adjust it if needed.
---- RETURN LAG ----
2min
[ ]
BACK SAVE
6<67(06(77,1*6
Hold Button: MENU/<System Settings>
7KH6\VWHP6HWWLQJVPHQXSURYLGHVDFFHVVWRDGMXVWLQJDQG¿QHWXQLQJWKHV\VWHPIRUHQKDQFHG
comfort and better fuel savings. The BCP-8W behaves differently based on the selected Control
Modes (see Startup Settings 17).
- SYSTEM SETTINGS -
<Stage Settings>
<Setback Schedule>
<DHW Settings>
Setback 0
F
Run-On 2min
Pump Exercise Off
BACK SELECT
PROGRAM RUN
352*5$0&+$1*(6(77,1*6
To be able to change the BCP-8W settings the Program/Run Switch must be set to Program.
The switch is located under the Enclosure Wiring Cover for security. The Enclosure Wiring
Cover can be securely closed using a padlock.
67$*(6(77,1*6
Button: MENU/<System Settings>/<Stage Settings>
-- STAGE SETTINGS --
Reaction Time 1min
Purge Delay 0.0min
Min Runtime 2min
Standby Delay 10min
Last Stage Hold5 F
Throttle 2 F
<Lead Settings>
BACK SELECT
-- REACTION TIME --
2min
[ ]
BACK SAVE
5($&7,217,0(
$GMXVWDEOHIURPWRPLQXWHV 'HIDXOWPLQXWHV
Hold Button: MENU/<System Settings>/<Stage Settings>/Reaction TimeLQ3,'/RJLFRQO\
,WLVWKHDPRXQWRIWLPHLWWDNHVDVLQJOHVWDJHWRDIIHFWWKHV\VWHP
$IWHUWKH%&3:WXUQVRQDVWDJHWU\LQJWRPHHWDVHWSRLQWLWZLOOQRWWXUQRQDQRWKHU
stage until the Reaction Time has elapsed.
7RGHWHUPLQHWKHRSWLPXPWLPHLQDKHDWLQJV\VWHPVWDUWZLWKDKRWV\VWHP7XUQRQ
a single stage and calculate how long it takes until the system begins to respond to that
stage. That period should be set as the Reaction Time (See PID operation ).
385*('(/$<
$GMXVWDEOHIURPWRPLQXWHV 'HIDXOWPLQXWHV
Hold Button: MENU/<System Settings>/<Stage Settings>/Purge DelayLQ3,'/RJLFRQO\
0RVWODUJHERLOHUVPXVWJRWKURXJKDSXUJHF\FOHEHIRUHWKH\DUHEURXJKWRQOLQH
:KHQWKH%&3:DFWLYDWHVDERLOHUWKHORZHVWVWDJHRQDERLOHULWGRHVQRWVWDUWWR
calculate its output until the Purge Delay is over. This allows the boiler to fully come on
line and to begin producing output.
--- PURGE DELAY ----
1.0min
[ ]
BACK SAVE
7KH3XUJH'HOD\KHOSVSUHYHQWVKRUWF\FOLQJRIDQHZO\DFWLYDWHGERLOHU2QFHWKHORZHVWERLOHUVWDJHLVDFWLYDWHGLW0867UXQ
through the entire Purge Delay period (See PID operation on page ).
7KHPLQLPXP3XUJH'HOD\VHWWLQJ0867EHVHWWRWKHWLPHUHTXLUHGE\WKHERLOHUVPDQXIDFWXUHUVSHFL¿FDWLRQ
0,1,0805817,0(
$GMXVWDEOHIURPWRPLQXWHV 'HIDXOWPLQXWHV
Hold Button: MENU/<System Settings>/<Stage Settings>/Min RuntimeLQ3,'/RJLFRQO\
7KLVLVWKHPLQLPXPDPRXQWRIWLPHDQ\VWDJHZLOOUXQ (See PID operation on page ).
)RUWKHORZHVWVWDJHRIDERLOHUWKH0LQLPXP5XQWLPHVWDUWVDIWHUWKHSXUJHF\FOH
- MINIMUM RUNTIME -
1min
[ ]
BACK SAVE
7KLVWLPHUGRHVQRWDSSO\WRWKHODVWVWDJHRQOLQH7KH/DVW6WDJH+ROGDSSOLHVLQWKDWFDVH
,QLWLDOO\VHWWKHMinimum Runtime to half the Reaction Time.
,I6\VWHPWHQGVWRRYHUVKRRWUHGXFHWKHMinimum Runtime. If boilers tend to short cycle, increase Minimum Runtime.
25
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
67$1'%<'(/$<
$GMXVWDEOHIURPWRPLQXWHV 'HIDXOWPLQXWHV
Hold Button: MENU/<System Settings>/<Stage Settings>/Standby DelayLQ3,'/RJLFRQO\
7KH6WDQGE\'HOD\RQO\DSSOLHVWRERLOHUVLQ6WDQGE\0RGH6HH0RGHRQSDJH2.
$6WDQGE\ERLOHUFDQRQO\EHDFWLYDWHGDIWHUDOOWKHERLOHUVLQ$XWR0RGHKDYHKDGDOO
their stages on running for the full Standby Time.
-- STANDBY DELAY --
10min
[
]
BACK SAVE
6WDQGE\ERLOHUVDUHXVHGDVDEDFNXSLQH[WUHPHORDGFRQGLWLRQV$6WDQGE\ERLOHUFDQQHYHUEHD/HDGERLOHU
7KHIXOO6WDQGE\'HOD\PXVWDOZD\VHODSVHUHJDUGOHVVRIZKDWKDSSHQVWRWKHV\VWHPWHPSHUDWXUH7KHUHIRUHVKRUWHU6WDQGE\
WLPHVZLOOUHVXOWLQVPRRWKHUVHWSRLQWRSHUDWLRQLQH[WUHPHFRQGLWLRQV/RQJHU6WDQGE\WLPHVPD\SUHYHQWD6WDQGE\ERLOHU
from starting if the other boilers can eventually meet the load or if the load decreases.
:KHQVHWWLQJWKH6WDQGE\'HOD\UHPHPEHUWKDWLWZLOOEHDGGHGWRWKH5HDFWLRQ7LPHIRUWKH¿UVWVWDJHRQWKH¿UVWVWDQGE\
boiler. The following stages start time will rely on Pre-Purge and Reaction Time only.
/$6767$*(+2/'
$GMXVWDEOHIURP)º&ºWR)º&º 'HIDXOW)º&º
Hold Button: MENU/<System Settings>/<Stage Settings>/Lst Stg Hld LQ3,'/RJLFRQO\
7KH/DVW6WDJH+ROGSUHYHQWVVKRUWF\FOLQJRIWKH/HDG6WDJHGXULQJORZORDGFRQGLWLRQV
ZKHUHWKHV\VWHPPLJKWKDYHDORDGWKDWLVVLJQL¿FDQWO\OHVVWKDQWKHRXWSXWRIRQHVWDJH
LAST STAGE HOLD
5 F
[ ]
BACK SAVE
:KHQWKH%&3:EULQJVRQWKH/HDG6WDJHWKH6HW3RLQWLVTXLFNO\H[FHHGHGDQGWKH/HDG6WDJHLVWXUQHGRII7RSURORQJ
WKHUXQWLPHGXULQJWKLVW\SHRIFRQGLWLRQXVHWKH/DVW6WDJH+ROGVHWWLQJ
7KH%&3:ZLOODOORZWKHV\VWHPWHPSHUDWXUHWRH[FHHGWKH6HW3RLQWE\WKHQXPEHURIGHJUHHVVHOHFWHGEHIRUHWKH/HDG
Stage is turned off. (See PID operation ).
)RUH[DPSOHZLWKD6HW3RLQWRI)DQGD/DVW6WDJH+ROGVHWWLQJRI)WKH/HDG6WDJHERLOHUZLOOUHPDLQRQXQWLOWKH6HW
Point reaches 170°F. During that period, the display will show "Hold Until 170F" then, the lead stage will turn off
7+5277/(5$1*(
$GMXVWDEOHIURP)º&ºWR)º&º 'HIDXOW)º&º
Hold Button: MENU/<System Settings>/<Stage Settings>/Throttle LQ266/RJLFRQO\
7KH7KURWWOLQJ5DQJHVHWVDWHPSHUDWXUHEDQGDURXQGWKH6HW3RLQWWKDWFRQWUROVZKHQ
stages will be turned on or off.
-- THROTTLE RANGE --
2 F
[ ]
BACK SAVE
)RUH[DPSOHLQWKH266&RQWURO0RGHQRVWDJHVZLOOEHDFWLYDWHGXQWLOWKHWHPSHUDWXUHIDOOVRQHIXOO7KURWWOLQJ5DQJHEHORZWKH
Set Point. A second stage will be activated when the temperature falls to two full Throttling Ranges below the Set Point, and so
on, with one extra stage being turned on for every throttling range below the Set Point the System temperature reaches.
6WDJHVZLOOEHWXUQHGRIIDVWKHWHPSHUDWXUHULVHVWRZDUGWKH6HW3RLQWXVLQJRQHIXOOWKURWWOLQJUDQJHDVDGLIIHUHQWLDOEHWZHHQ
stages.
7KHODVWVWDJHWREHWXUQHGRIIZLOOEHDOORZHGWRH[FHHGWKH6HW3RLQWE\DIXOOWKURWWOLQJUDQJHEHIRUHLWLVWXUQHGRII7KLVKHOSV
WRSUHYHQWWKHODVWVWDJHIURPVKRUWF\FOLQJZKHQWKHORDGLVORZRUZKHQWKHVWDJHLVRYHUVL]HG (See OSS operation ).
7KURWWOLQJ([DPSOH
6HW3RLQW °) 7KURWWOLQJ )° %RLOHU6WDJHV$%&DQG'
)DOOLQJ7HPSHUDWXUH 5LVLQJ7HPSHUDWXUH
7HPSHUDWXUH &DOFXODWLRQ 6WDJH7XUQHG2Q 6WDJHV2Q 6WDJH7XUQHG2II 6WDJHV2Q
185°F
180 + (1)THR
--- None A None
180°F 180 - (0)THR --- None --- A
175°F 180 - (1)THR A A B A
171 to 174°F --- --- A --- A,B
170°F 180 - (2)THR B A,B C A,B
166 to 169°F --- --- A,B --- A,B,C
165°F 180 - (3)THR C A,B,C D A,B,C
161 to 165°F --- --- A,B,C --- A,B,C,D
160°F 180 - (4)THR D A,B,C,D --- A,B,C,D
/($'6(77,1*6
Hold Button: MENU/<System Settings>/<Stage Settings>/<Lead Settings>
7KHOHDGPHQXLVWRKHOSLQVHOHFWLQJWKH/HDGERLOHUDQGWKHW\SHRIURWDWLRQDSSURSULDWHIRU
the system.
-- LEAD SETTINGS --
Lead Boiler AB
Rotate Mode Time
BACK SELECT
26
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
/($'%2,/(5
'HSHQGLQJRQWKHQXPEHURIVWDJHV 'HIDXOW7KH¿UVWVHWRIVWDJHV
Hold Button: MENU/<System Settings>/<Stage Settings>/<Lead Setting>/Rotate Mode
7KH/HDG%RLOHU¶VORZHVWVWDJHZLOODOZD\VEHWKHILUVWVWDJHEURXJKWRQZKHQWKHUHLVD
call for output. As more output is needed, additional stages are added.
7KH/HDG%RLOHULVDOZD\VVKRZQRQWKHPDLQGLVSOD\LQEUDFNHWV
,QD6WDJHV\VWHPVHH%XUQHU7\SHLQWKH6WDUWXSVHFWLRQRQSDJH19), the display will
show the WZR/HDG%RLOHUVWDJHVEUDFNHWHG$%!,QD6WDJHV\VWHPWKHGLVSOD\ZLOO
No Pump or Valve stages
-- LEAD BOILER --
AB
CD
EF
BACK SELECT
VKRZWKHWKUHH/HDG%RLOHUVWDJHVEUDFNHWHG$%&!DQGVRRQ
,IDSXPSRUDYDOYHLVVHOHFWHGDVWKH%RLOHU2XWSXWLQWKH6WDUWXSPHQXVHHSDJH19),
the pump or valve letter will be skipped from the number os stages. See example to the
ULJKW7KHPLVVLQJVWDJH&DQG)UHSUHVHQWWKH%RLOHU9DOYHRU3XPS
7KH/HDG%RLOHUFDQEHURWDWHGEDVHGRQWKH5RWDWLRQ0RGHVHOHFWHG6HHQH[WVHWWLQJ
With Pump or Valve stages
-- LEAD BOILER --
AB
DE
BACK SELECT
527$7(02'(
$GMXVWDEOH7LPHIURPKUWRKUV0DQXDO)2)2 'HIDXOW7LPH+RXUV
Hold Button: MENU/<System Settings>/<Stage Settings>/<Lead Setting>/Rotate Mode
7KH/HDG%RLOHULVWKH¿UVWERLOHUEURXJKWRQZKHQRXWSXWLVUHTXLUHG
7KH/HDG%RLOHUFDQEHURWDWHGDXWRPDWLFDOO\PDQXDOO\RUEDVHGRQ)LUVW2Q)LUVW2II
(FOFO). The automatic rotation is recommended for most applications.
7KHFXUUHQW/HDG%RLOHULVVKRZQLQEUDFNHWVRQWKHPDLQGLVSOD\
2QO\ERLOHUVWKDWDUHVHWWR$XWR0RGHFDQEH/HDG7KHUHIRUHQRWDOOWKHERLOHUVPD\
EHDYDLODEOHZKHQPDQXDOO\VHOHFWLQJDQHZ/HDG%RLOHU
,I7LPHLVVHOHFWHGDVHFRQGVFUHHQZLOODOORZWKHDGMXVWPHQWRIWKH$XWR5RWDWH3HULRG
,I+RXUVGHIDXOWVHWWLQJZDVVHOHFWHGWKH¿UVWURWDWLRQZLOOWDNHHIIHFWDIWHUKRXUV
if the Time was not set. However, if the Time was set, the rotation will always take
SODFHDW$07KHIROORZLQJURWDWLRQVZLOOWDNHSODFHHYHU\KRXUVWKHUHDIWHU
,I7LPH5RWDWLRQZDVVHWWRRWKHUWKDQKRXUVWKHURWDWLRQWLPHUZLOOVWDUWIURPWKH
moment the setting is changed.
,I)LUVW2Q)LUVW2II)2)2LVVHOHFWHGWKHFRQFHSWZLOOIROORZWKLVH[DPSOHLI$LVWKH
OHDGWKHVWDUWLQJVHTXHQFHRIWKHERLOHUVZLOOEH$%WKHQ&:KHQWKHGHHQHUJL]LQJ
of the stages starts, it will turn off A, B, Then C. Then, stage D will be the new lead for
the next load.
6(7%$&.6&+('8/(
Hold Button: MENU/<System Settings>/<Stage Settings>/<Setback Schedule>
This menu provides the Setback and Boost based on Day/Night Schedule. It will only be
available when Shutdown or Tstat are selected as the Startup External Input option.
-- LEAD ROTATION --
Time
Manual
FOFO
BACK
SELECT
If Time Rotation is selected
AUTO ROTATE PERIOD
24hrs
[ ]
BACK SAVE
SETBACK SCHEDULE
Setback 0 F
Present Time **:**
Day Schdule 7:00Am
Night Schdul 7:00Pm
BACK SELECT
6(7%$&.
$GMXVWDEOHIURP°)°&WR)& 'HIDXOW°)°&
Hold Button: MENU/<System Settings>/<Stbck Schdle>/Setback LQ'D\1LJKW6FKHGXOH
Hold Button: MENU/<System Settings>/Setback LQ([WHUQDO6LJQDO
7KH6HWEDFNIHDWXUHFDQEHXVHGWRSURYLGHWKH%&3:ZLWKDORZHUWHPSHUDWXUH6HW
Point when less load is required during the night or on the weekends when the building
is not occupied, but heat is still required.
------ SETBACK -------
0 F
[ ]
BACK SAVE
7KHQHZ6HW3RLQWZLOODSSHDURQWKHPDLQGLVSOD\LQGLFDWLQJWKLVFRQGLWLRQSetback to 160 F".
)RUH[DPSOHLIWKHFDOFXODWHGWHPSHUDWXUHLV)DQGWKH6HWEDFNLV)WKHQZKHQLQ6HWEDFNWKH%&3:ZLOOKROGD6HW
3RLQWRI)180°F - 20°F).
$IWHUVHOHFWLQJDYDOXHLQ6HWEDFN\RXZLOOEHGLUHFWHGWRWKH%RRVWPHQX
%2267
$GMXVWDEOHIURP)&WR)& 'HIDXOW°)°&
Hold Button: MENU/<System Settings>/Setback/Boost
7KLVIHDWXUHVDOORZVDEXLOGLQJWRZDUPXSGRZQTXLFNO\DIWHUD6HWEDFNSHULRGWREULQJ
the building to the desired temperature faster.
-------- BOOST ---------
0 F
[ ]
BACK SAVE
27
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
7KH%RRVWWHPSHUDWXUHZLOOEHWKHQXPEHURIGHJUHHVWREHDGGHGWRWKH7DUJHW
7KHQHZ6HW3RLQWZLOODSSHDURQWKHPDLQGLVSOD\LQGLFDWLQJWKLVFRQGLWLRQBoost to 190 F".
8VLQJWKHSUHYLRXVH[DPSOHLIWKH7DUJHWZDV)DQGWKH6HWEDFNZDV)DQGWKH%RRVWZDV)IRUPLQXWHVDIWHUWKH
VHWEDFNSHULRGWKH%RRVWZLOOFKDQJHWKHWDUJHWWR)IRUDSHULRGRIPLQXWHV
%22673(5,2'
$GMXVWDEOHIURPWRPLQXWHV 'HIDXOWPLQXWHV
Hold Button: MENU/<System Settings>/Setback/Boost/Boost Period
7KLVZLOOGHWHUPLQHWKHOHQJWKRIWLPHWKHV\VWHPZLOOUHFHLYH%RRVW
,I([WHUQDO6LJQDOZDVVHOHFWHGDVWKH6HWEDFN0RGHWKH%RRVWZLOOVWDUWZKHQWKH
------ BOOST PERIOD---
30min
[ ]
BACK SAVE
switch from Setback to normal operation takes place and will continue for the full Boost Period. An example would be if
WKH%RRVW3HULRGZDVVHWWRPLQXWHVDQGWKHVKRUWLQJRIWKH6HWEDFNWHUPLQDOVKDVHQGHGDW$PWKH%RRVWZLOOVWDUWDW
$PDQGZLOOWHUPLQDWHDW$PZKHUHWKHFRQWUROZLOOUHVXPHQRUPDORSHUDWLRQ
,I'D\1LJKW6FKHGXOHVZHUHDYDLODEOHWKH%RRVWZLOOVWDUWDIXOO%RRVW3HULRGSULRUWRWKHVZLWFKIURP1LJKWVHWEDFNWR'D\
QRUPDORSHUDWLRQ,IWKH'D\ZDVVHWWRVWDUWDW$PWKH%RRVW3HULRGZDVVHWWRPLQXWHVWKH%RRVWZLOOVWDUWDW$P
DQGWHUPLQDWHDW$P
$YRLGLQJ&RQÀLFWLQJ%RLOHU/LPLWV
7KHWHPSHUDWXUHOLPLWVVHWRQWKHERLOHUV0867EHVHWFRQVLGHUDEO\KLJKHUWKDQWKH
BCP-8W’s Set Point for the reasons detailed below.
7KH%&3:VHQVRULVORFDWHGLQDFRPPRQKHDGHUVRPHGLVWDQFHIURPWKHERLOHUV$V
the temperature rises in the header and before reaching the sensor location, energy is
dissipated. Therefore, the temperature in the header could be lower than that registered
by boiler sensors.
,QDGGLWLRQWRWKHQRUPDOGURSH[SHULHQFHGEHWZHHQWKHERLOHU¶VWHPSHUDWXUHDQGWKDW
:$51,1*
The temperature limits set on
the boilers must be higher than
the BCP-8W Set Point. Read
the section at left for details
that will prevent erratic system
operation.
UHDGE\WKH%&3:VHQVRUWKH/DVW6WDJH+ROGVHWWLQJPXVWEHDFFRXQWHGIRU7KHERLOHUOLPLWPXVWEHVHWDERYHWKH6HW3RLQW
3/86WKH/DVW6WDJH+ROG3/86WKHQRUPDOGURSH[SHULHQFHGLQWKHSLSLQJ
8VLQJWKHSUHYLRXVH[DPSOHRID)/DVW6WDJH+ROGZLWKD)6HW3RLQWWKHERLOHUV¶OLPLWVPXVWEHVHWHQRXJKRYHU)
to prevent the boilers’ internal limits being reached. In this situation, the boiler high limit should be set at approximately 180°F
to prevent the difference in boiler temperature vs. header temperature from causing erratic operation.
'$<1,*+76&+('8/(6
Hold Button: MENU/<System Settings>/<Setback Schedule>/Day Schedules
7KH%&3:KDVWZROHYHOVRIKHDW7KH'D\OHYHOLVXVHGZKHQDEXLOGLQJLVRFFXSLHG
and people are active.
7KH1LJKW6HWEDFNOHYHOLVXVHGZKHQDEXLOGLQJLVQRWRFFXSLHGRUZKHQSHRSOHDUH
sleeping. This setting reduces the calculated temperature by the Setback setting based
RQWKHSURYLGHGVFKHGXOH,IWKH'D\FDOFXODWHGZDWHUWHPSHUDWXUHZDVÛ)DQGWKH
6HWEDFNZDVÛ)WKH1LJKW6FKHGXOHZLOOUXQDWÛ)Û) Û)
-- DAY SCHEDULE ----
07:**Am
BACK SAVE
-- NIGHT SCHEDULE --
10:**Pm
BACK SAVE
,IWKH%RRVWIHDWXUHLVEHLQJXVHGLWXVHVWKH'D\6FKHGXOHDVD%RRVWHQGLQJSRLQW7KDWLVLIWKH'D\6FKHGXOHLVVHWWRVWDUW
DW$0WKH%RRVWZDVVHWWR)DQGWKH%RRVW3HULRGZDVPLQXWHVWKH%RRVWZLOOVWDUWDW$07KHQZKHQLQ
%RRVW%&3:ZLOOUDLVHWKHFDOFXODWHGZDWHUWHPSHUDWXUHE\WKH%RRVWDPRXQW8VLQJWKHSUHYLRXVH[DPSOHDW$0WKH
%&3:ZLOOUDLVHWKHFDOFXODWHGZDWHUWRÛ)Û)Û)XQWLO$0ZKHUHLWZLOOGURSEDFNWRWKHQRUPDOFDOFXODWHG
temperature of 150ÛF.
6(735(6(177,0(
Hold Button: MENU/<System Settings>/<Setback Schedule>/Present Time
Hold Button: MENU/<Maintenance>/Present Time
7KH7LPHLVXVHGIRU'D\1LJKW6FKHGXOHDQG+LVWRU\JUDSK
$GMXVWWKHWLPHE\VHOHFWLQJ7LPHIURPWKHPHQXDQGWKHQVFUROOLQJWKURXJKWKHKRXUV
followed by the minutes. If hours are to be set to PM, scroll through the AM hours to
reach the PM hours.
- SET PRESENT TIME
**:**
BACK SAVE
$/(57
Remember that the battery is used as a time backup. If no power is supplied to the BCP-8W, the battery will die in
three months and time clock values will be lost. Thus, DO NOT power down the control during off-season.
28
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
'+:6(77,1*6
Hold Button: MENU/<System Settings>/<DHW Settings>
$'+:FDOOFDQEHLQLWLDWHGE\VKRUWLQJWKH'+:LQSXWWHUPLQDOV33 and 34. In
DGGLWLRQXVLQJD:HLO0F/DLQWHPSHUDWXUHVHQVRURQWKHVDPHWHUPLQDOVLQVWHDGRID
dry-contact input will add the DHW Set Point and Differential control capability.
On a DHW call, the BCP-8W will raise the Target to either 200ºF or the Maximum
Target, which ever is lower.
The BCP-8W provides three levels of DHW pump operation. The ¿UVWLVZKHQ3ULPDU\
Secondary is selected as the DHW Piping from the Startup Menu on page 18. This
option will provide no DHW Priority. And, if there was a DHW call during the Summer
or when the outdoor temperature is above the Outdoor Cutoff, both the DHW Pump and
WKH6\VWHPUHOD\VZLOOHQHUJL]H8SRQWKHWHUPLQDWLRQRIWKH'+:FDOOWKH'+:3XPS
UHOD\ZLOOGHHQHUJL]HOHDYLQJWKH6\VWHPUHOD\HQHUJL]HGIRUWKH5XQ2QGHOD\
-- DHW SETTINGS ---
DHW Temp. 140 F
DHW Prior Tmr 60min
DHW Set Point120
F
DHW Diff. 5
F
BACK SELECT
,I3DUDOOHOZDVVHOHFWHGDVWKH'+:3LSLQJIURPWKH6WDUWXSPHQXRQSDJH18 and the Season was set to Winter while the DHW
3ULRULW\7LPHUZDVVHWWR12D'+:FDOOZLOONHHSWKH6\VWHPUHOD\HQHUJL]HGLQDGGLWLRQWRHQHUJL]LQJWKH'+:3XPSUHOD\
8SRQWHUPLQDWLRQRIWKH'+:FDOOWKH'+:3XPSUHOD\ZLOOGHHQHUJL]HOHDYLQJWKH6\VWHPUHOD\RQ
+RZHYHULQ:LQWHULIWKH'+:3ULRULW\7LPHUZDVVHWWRDYDOXHRWKHUWKDQ12D'+:FDOOZLOOGHHQHUJL]HWKH6\VWHPUHOD\
DQGHQHUJL]HWKH'+:3XPSUHOD\7KLVZLOOUHPDLQIRUWKHSHULRGRIWKH'+:3ULRULW\7LPHUVHWWLQJRUXQWLOWKH'+:FDOO
terminates, whichever is sooner. If the DHW call was still active after the DHW Priority Timer elapses, the System relay will
HQHUJL]HIRUWKHUHPDLQLQJRIWKH'+:FDOOSHULRG
'+:35,25,7<7,0(5$9$,/$%/(:,7+3$5$//(/'+:3,3,1*
$GMXVWDEOH12WRPLQXWHV 'HIDXOWPLQXWHV
Hold Button: MENU/<System Settings>/<DHW Settings>/DHW Prior. Timer LQ3DUDOOHO
7KH'+:3ULRULW\7LPHULVRQO\DYDLODEOHZKHQ'+:3LSLQJLVVHWWR3DUDOOHO6HHSDJH
18). It provides the user with the capability of selecting the DHW Priority period. If
12ZDVVHOHFWHGD'+:FDOOZLOOHQHUJL]HWKH'+:SXPSUHOD\ZLWKRXWDIIHFWLQJWKH
System Pump operation. That is, when in Summer or Outdoor Cutoff, a DHW call will
HQHUJL]HRQO\WKH'+:3XPSUHOD\OHDYLQJWKH6\VWHPUHOD\RII
DHW PRIORITY TIMER
2min
[ ]
BACK SAVE
,Q:LQWHULIWKH'+:3ULRULW\7LPHUZDVVHWWRDYDOXHRWKHUWKDQ12D'+:FDOOZKHQWKHRXWGRRUWHPSHUDWXUHLVEHORZWKH
2XWGRRU&XWRIIZLOOFDXVHWKH6\VWHPUHOD\WRGHHQHUJL]HDQGWKH'+:3XPSUHOD\WRHQHUJL]HIRUWKHSHULRGRIWKH'+:
Priority Timer or until the DHW call expertise, whichever happens sooner. If the DHW call did not expire within the Priority
SHULRGWKHQWKH6\VWHPUHOD\ZLOOHQHUJL]H
'+:6(732,175(48,5(6$1237,21$/'+:7(03(5$785(6(1625
$GMXVWDEOH°)°&WR)& 'HIDXOW°)°&
Hold Button: MENU/<System Settings>/<DHW Settings>/DHW Set Point
7KLVLVWKHGHVLUHG'+:WHPSHUDWXUHVHWWLQJDWZKLFKWKH'+:3XPSUHOD\ZLOOGH
HQHUJL]HZKHQUHDFKHG
7KH%&3:FDQDFFHSWD'+:FDOOLQWZRZD\V$QDTXDVWDWFDQSURYLGHDGU\
FRQWDFWFORVXUHWRWHUPLQDOVDQGLVWKH¿UVWRSWLRQ
-- DHW SET POINT --
140 F
[ ]
BACK SAVE
7KHVHFRQGRSWLRQZLOOEHFRQQHFWLQJD:HLO0F/DLQWHPSHUDWXUHVHQVRUIRULPPHUVLRQLQD,'ZHOO
ZLOORIIHUWKHFDSDELOLW\RIDGMXVWLQJWKH'+:6HW3RLQWDQG'LIIHUHQWLDOWKURXJKWKH%&3:HDV\WRIROORZPHQX
(See page 28). In addition to being able to view and log DHW temperature history.
'+:',))(5(17,$/
$GMXVWDEOH°)°&WR)& 'HIDXOW°)°&
Hold Button: MENU/<System Settings>/<DHW Settings>/DHW Diff.
7KLVUHSUHVHQWVWKHQXPEHURIGHJUHHVWKH'+:WHPSHUDWXUHFDQGURSIURPWKH'+:
6HW3RLQWEHIRUHD'+:FDOOFDQEHUHFRJQL]HGDQGWKH'+:3XPSUHOD\HQHUJL]HG
$ODUJH'+:'LIIHUHQWLDOZLOOUHVXOWLQRVFLOODWLRQLQWKH'+:WHPSHUDWXUH+RZHYHUD
small DHW Differential will have a tighter control over the DHW temperature but might
result in boilers coming on frequently for short periods to satisfy the DHW Set Point and
Differential settings.
DHW DIFFERENTIAL
10 F
[ ]
BACK SAVE
29
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
38039$/9($1'&20%867,21$,5'$03(523(5$7,21
7KH%&3:FRQWUROVPXOWLSOHUHOD\VHDFKFRQWUROOLQJGLIIHUHQWW\SHVRIHTXLSPHQW,QDGGLWLRQWRWKHFRQWURORIWKHERLOHUVLW
can control the primary system pump, boiler pumps or valves, a DHW pump, and a combustion air damper. The operation of
those relays depends on the Startup and System Settings.
58121
$GMXVWDEOHWRPLQXWHV 'HIDXOWPLQXWHV
Hold Button: MENU/<System Settings>/Run-On
7KH5XQ2QDSSOLHVWRDOOSXPSVYDOYHVDQGGDPSHUV,WLVWKHDGGLWLRQDOWLPHDSXPS
valve, or a combustion air damper relay will run after the output boiler relays has de-
HQHUJL]HG)RUSXPSVDQGYDOYHVLWLVXVHGWRGLVVLSDWHWKHH[FHVVHQHUJ\IURPWKH
heating system into the building. For a combustion air damper, it brings in enough fresh
DLUIRUWKHQH[WERLOHU¿UHXS
------- RUN-ON -------
2min
[ ]
BACK SAVE
7KH5XQ2QWLPHVKRXOGEHVHWEDVHGRQWKHVL]HDQGW\SHRIWKHHTXLSPHQW$ERLOHUZLWKORZZDWHUFRQWHQWZLOOQHHGDORQJHU
Run-On than a boiler with more water content.
3803(;(5&,6(
$GMXVWDEOH2II2Q 'HIDXOW2II
Hold Button: MENU/<System Settings>/Pump Exercise
7KH%&3:SURYLGHVDQRSWLRQWRH[HUFLVHSXPSVIRUVHFRQGVZKHQQRWXVHGIRU
seven days. This option reduces pumps' impellers locking after a long off-season period.
--- PUMP EXERCISE --
Off
On
BACK SAVE
30
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
0$,17(1$1&(
Hold Button: MENU/<Maintenance>
The Maintenance menu gives access to sensor and output trimmings in addition to viewing
WKH6WDUWXSFRQ¿JXUDWLRQVHWWLQJVDVZHOODVVHQVRU+LVWRU\
$/(57
To be able to change the BCP-8W settings the Program/Run Switch must be set
to Program. The switch is located under the Enclosure Wiring Cover for security.
The Enclosure Wiring Cover can be securely closed using a padlock.
---- MAINTENANCE ----
Unit F
Present Time12:30P
<Sensor Trim>
<Histories>
<Configuration>
BACK SELECT
6<67(0287'2256(162575,0
$GMXVWDEOH°)°&WR°)°& 'HIDXOW°F
Hold Button: MENU/<Maintenance>/System Trim
Hold Button: MENU/<Maintenance>/Outdoor Trim
Hold Button: MENU/<Maintenance>/Return Trim
Hold Button: MENU/<Maintenance>/DHW Trim
7KH:HLO0F/DLQWKHUPLVWRUW\SHVHQVRUVDUHYHU\DFFXUDWHDQGQRUPDOO\UHTXLUHQR
calibration. However, sometimes it may be desirable to make small adjustments to the
displayed value.
'RQRWXVHWKH7ULPVHWWLQJWRPDNHWKH2XWGRRUVHQVRUPDWFKWKHRQHUHSRUWHGRQWKH
UDGLRRU792XWGRRUWHPSHUDWXUHFDQYDU\ZLGHO\RYHUDEURDGFDVWUDQJH
--- SENSOR TRIM ----
System Trim +0 F
Outdoor Trim +0
F
Return Trim +0 F
DHW Trim +0
F
BACK SELECT
+,6725<
Hold Button: MENU/<Histories>
The BCP-8W provides users with a graphical history of the System, Outdoor, DHW, and Return
sensors for the previous 24 hours. The temperatures are sampled every 12 minutes. That is,
readings of temperatures are recorded and stored every 12 minutes for the last 24 hours.
7RYLHZWKHYDOXHVRIDVSHFL¿FSHULRGXVHWKHWZRPLGGOHEXWWRQVWRVFUROOWRWKDWWLPH
and read the upper left temperature.
7KH¿UVWVFUHHQZLOOEHWKH6\VWHP7HPSHUDWXUH+LVWRU\%\FOLFNLQJRQWKH1H[WEXWWRQ
you will be able to view the Outdoor Temperature History, then, the Return History
followed by the DHW History.
Sys=120 F 10:00AM
BACK NEXT
BCP-8W V1.00
Outdoor reset
Heating-BreakOnRise
Day/Night Schedule
DHW Parallel
BACK NEXT
8 X On/Off
PID,Fault Stgs Off
BACK NEXT
&21),*85$7,21
Hold Button: 0(180DLQWHQDQFH!&RQ¿JXUDWLRQ!
7KLVPHQXSURYLGHVDFRQVROLGDWHGYLHZRIWKH6WDUWXSVHWWLQJV
$GGLWLRQDOFRQWUROVHWWLQJVZLOOEHDYDLODEOHE\VHOHFWLQJWKH1(;7RSWLRQ
',63/$<$1'%877216
The BCP-8W display layout provides a variety of information that gives an immediate
picture of the operation status. The display shows four heating boilers at a time. The
two middle buttons scrolls the screen to view any additional boilers. Moreover, all the
information is brightly displayed. It can be viewed in brightly or dimly lit rooms.
7KHEXWWRQVIXQFWLRQDOLW\FKDQJHVEDVHGRQWKHVFUHHQDQGPHQXOHYHO7KHEXWWRQV
functionality is displayed on a dark background on the screen's bottom line.
7KHVHFRQGOLQHIURPWKHWRSLVWKH0HVVDJH'LVSOD\/LQH,QQRUPDORSHUDWLRQLW
displays the Target Set Point. If a Return sensor was connected, the Target display will
be alternating its value with the Return temperature. When the control is to display a
status message, the message will replace Target and Return temperatures. See Display
Messages on page 1.
31
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
7KHWZRPLGGOHEXWWRQVIXQFWLRQVDUHDVIROORZV
7KH+RUL]RQWDODUURZVDUHWRVFUROOWKURXJKWKHDYDLODEOHVWDJHV
7KH9HUWLFDODUURZVDUHWRVFUROOWKURXJKWKHPHQXIXQFWLRQVZKHQLQ
PHQXVRUWRFKDQJHYDOXHVRIVHWWLQJVZKHQLQLWVVSHFL¿FVFUHHQ
Sys=
155
F OD=
58
F
DHW all (200 F)
<AB > DE GH JK
HI HI LO ----
BOILER MENU
Outdoor Temp
System Temp
Message Display Line
Units and their
Status
Button functions
',63/$<28738767$786
7KH%&3:XQLWVHTXHQFLQJVWDWXVJLYHVLPPHGLDWHDFFHVVWRHDFKERLOHUVWDWXV7KHIROORZLQJOLVWVKRZVDOOSRVVLEOHERLOHUVWDWXV
$%! 7ZR6WDJHERLOHUDQG%RLOHU$%LVWKH/HDGLQVHTXHQFLQJ%UDFNHWVLQGLFDWH/HDG6WDJH
%RLOHULVGHHQHUJL]HG7KHERLOHU0RGHLVVHWWR$XWR
67% %RLOHULVGHHQHUJL]HG7KHERLOHU0RGHLVVHWWR6WDQGE\
+, %RLOHUKLJKHVWVWDJHLVDFWLYH7KHERLOHU0RGHLVVHWWRHLWKHU$XWRRU6WDQGE\
0(' %RLOHU0LGGOHVWDJHLVDFWLYH$YDLODEOHLQ7KUHHVWDJHERLOHUVRQO\7KHERLOHU0RGHLVVHWWRHLWKHU$XWRRU6WDQGE\
0+, %RLOHU0LGGOH+LJKVWDJHLVDFWLYH$YDLODEOHLQ)RXUVWDJHERLOHUVRQO\7KHERLOHU0RGHLVVHWWRHLWKHU$XWRRU
Standby.
0/2 %RLOHU0LGGOH/RZVWDJHLVDFWLYH$YDLODEOHLQ)RXUVWDJHERLOHUVRQO\7KHERLOHU0RGHLVVHWWRHLWKHU$XWRRU
Standby.
/2 %RLOHU/RZHVWVWDJHLVDFWLYH7KHERLOHU0RGHLVVHWWRHLWKHU$XWRRU6WDQGE\
21 $OO%RLOHU6WDJHVDUHVHWWR21
2)) $OO%RLOHU6WDJHVDUHVHWWR2))RUWKHERLOHUGRHVQRWH[LVW
&( %RLOHURQ([WHQVLRQSDQHOLVQRWFRPPXQLFDWLQJEDFNWRWKH%&3:
Boiler Pumps are being controlled by the BCP-8W.
%RLOHU9DOYHVDUHEHLQJFRQWUROOHGE\WKH%&3:
',63/$<0(66$*(6
The BCP-8W normal display layout reserved the second line for message indications. The following is a list of the most common
0HVVDJH'LVSOD\/LQHLQIRUPDWLRQ
6XPPHU 7KHFRQWUROLVVHWWR6XPPHU1RKHDWLVDFWLYH
2XWGRRU&XWRII 7KH2XWGRRUWHPSHUDWXUHLVDERYHWKH2XWGRRU&XWRII
6KXWGRZQ$FWLYH 7KH6KXWGRZQ7HUPLQDOVDUH6KRUWHG1RKHDWLQJERLOHUVZLOOEHDFWLYH
6KXWGRZQE\(06 7KH(06LVEHORZP$RUDERYHP$
'+:&DOOÛ) 7KHUHLVD'+:'RPHVWLF+RW:DWHUFDOO7KH%&3:ZLOO5DLVHV\VWHP6HW3RLQWWRWKH
LQGLFDWHGWHPSHUDWXUH'+:LQFUHDVHVFDOFXODWHGWHPSHUDWXUHWRÛ)RU0D[:DWHU7HPSHUDWXUH
whichever is lower.
+ROGLQJ5HWXUQDWÛ) 5HWXUQVHQVRULVUHDGLQJOHVVWKDQWKH0LQLPXP5HWXUQ%&3:LVWU\LQJWRUDLVHUHWXUQWRÛ)
+ROGLQJ8QWLOÛ) 7KH/HDGERLOHULVLQ/DVW6WDJH+ROG7KLVH[DPSOHVKRZVWKDWWKHOHDGVWDJHZLOOWXUQRIIZKHQ
V\VWHPWHPSHUDWXUHUHDFKHVÛ)
:DLWLQJIRU&RPE3URYH 7KH6\VWHPRU&RPEXVWLRQ$LU'DPSHUUHOD\LV21DQGWKHSURYHWHUPLQDOVDUHRSHQEHIRUHWKHOHDG
ERLOHUUHOD\FDQHQHUJL]H
6<63URYH)DLOXUH $IWHUERLOHUVKDYHUXQIRUDZKLOH3URYHVLJQDOZDVRSHQHG7KHERLOHUUHOD\VZLOOGHHQHUJL]H
+RZHYHUWKH6\VWHPUHOD\ZLOOUHPDLQHQHUJL]HG
32
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
%2,/(56(77,1*6
Button: BOILER/
,QPRVWLQVWDOODWLRQVDOODFWLYHERLOHUDGMXVWPHQWVDUHWKHVDPHEXWHDFKFDQEH
FRQ¿JXUHGGLIIHUHQWO\LIGHVLUHG
:KHQWKH%2,/(5EXWWRQLVGHSUHVVHGWKH%RLOHU$6HWWLQJVPHQXZLOOEHVKRZQ
----- BOILER AB -----
Mode Auto
Runtime 58Hrs
<Prev Boiler>
<Next Boiler>
BACK SAVE
0DNHDOOWKHDSSURSULDWHVHWWLQJVIRU%RLOHU$%LI6WDJHZDVVHOHFWHGDVWKH%XUQHU7\SHIURPWKH6WDUWXSRQSDJH19).
7KHQVHOHFWWKH1H[W6WDJHRSWLRQIURPWKHPHQXWREULQJXSWKH%RLOHU&'6HWWLQJVPHQXDQGPDNHDOOWKHVHWWLQJV&RQWLQXH
until all boilers have been set.
,ID%&3;LVFRQQHFWHGWRWKH%&3:VFUROOLQJWKURXJKVWDJHVXVLQJWKH1H[WDQG3UHYPHQXRSWLRQVZLOOVFUROOWKURXJKWKH
BCP-8X stages as well.
$/(57
To be able to change the BCP-8W settings, the Program/Run Switch must be set
to Program. The switch is located under the Enclosure Wiring Cover for security.
The Enclosure Wiring Cover can be securely closed using a padlock.
PROGRAM RUN
02'(
$XWR6WDQGE\2II2Q 'HIDXOW$XWR
Button: BOILER/Mode
7KH%&3:RQO\FRQWUROVDQ\ERLOHUVHWWR$XWRRUDIWHUDGHOD\WKRVHVHWWR6WDQGE\
$Q\RXWSXWZLWKRXWDQDFWLYHERLOHUFRQQHFWHGPXVWEHVHWWR2II
7KHIROORZLQJOLVWGHVFULEHVWKH02'(RSWLRQV
-- BOILER AB MODE -
Auto
Standby
Off
On
BACK SAVE
$XWR - The BCP-8W will control the boiler’s operation to maintain the desired Set Point. Only boilers set to Auto can be lead
boiler.
6WDQGE\ These boilers can only be activated when all boilers in Auto have been at HI for an adjustable Standby delay period.
Standby boilers are generally used as a backup in extreme load conditions. Note that, a Standby boiler cannot be a lead
boiler. Standby Delay is only available in PID mode.
2II Any output boiler not connected to a physical boiler should be set to Off. The Off Mode can also be used to disable
boilers that are being serviced.
2Q The On Mode should only be used when testing a boiler. The On Mode overrides the PROVE and SHUTDOWN inputs.
Once set to On the boiler will immediately start all of its stages.
5817,0(
&OHDU
Button: BOILER/RunTime
7KH5XQ7LPHSURYLGHVDQDFFXPXODWLYHKRXUO\UXQIRUWKHVHOHFWHGERLOHU
7KH5XQ7LPHIRUDVSHFL¿FERLOHUFDQEHUHVHWWR]HURE\SUHVVLQJWKHPLGGOHWZR
buttons.
BOILER AB RUNTIME
58hrs
BACK CLEAR OK
33
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
7528%/(6+227,1*
7(03(5$785(,13876
'LVSOD\VKRZV6HQVRU23(1
Check the sensor is connected and the wires are continuous to the BCP-8W. Finally follow the procedure for Incorrect
Temperature Display.
'LVSOD\VKRZV6HQVRU6+257
The BCP-8W sees a short across the input terminals. Remove the wires from the the sensor terminals. The display should change
to read OPEN. If it doesn’t, the BCP-8W may be damaged.
'LVSOD\VKRZVDQ,QFRUUHFW7HPSHUDWXUH'LVSOD\
Remove the wires from the sensor terminals. The display should change to read OPEN. If it doesn’t, the BCP-8W may be
damaged. Take an ohm reading across the detached sensor wires. Take an ohm reading across the detached sensor wires. The
ohm reading should correspond to the Temperature sensor Table. If it does not, the sensor may be damaged.
5HWXUQ6HQVRUGRHVQRW'LVSOD\7HPSHUDWXUH
Check the sensor is connected and the wires are continuous to the BCP-8W. Finally follow the
procedure for Incorrect temperature display.
&21752/23(5$7,21
7RR0XFK+HDW
&KHFNLIWKHFRQWUROKDVDQ\RIWKHIROORZLQJFRQGLWLRQV
'RPHVWLF+RW:DWHUFDOO- The BCP-8W will raise the temperature of the system to either
Û)RU0D[LPXP7DUJHWRQD'+:FDOO
5HVHW5DWLRDQG2IIVHW- If excessive heat occurs only in certain weather conditions, adjust
the Reset Ratio and Offset (See Understanding Operating Concept on page 5). If excessive
heat occurs year round, reduce the Offset.
%RLOHU0RGH6HWWLQJV- The BCP-8W will only sequence boilers with a Mode set to Auto or
Standby. Check to if any boiler stage is set to On.
&RQWURO6HWWLQJV7KH/DVW6WDJH+ROGZLOODOORZRQO\WKH/HDGERLOHUWRH[FHHGWKHVHWSRLQW
,IWKHVHWWLQJLVWRRKLJKDQGRQO\WKH/HDGERLOHULVRQWKHV\VWHPFDQRYHUKHDW5HGXFHWKH
/DVW6WDJH+ROGVHWWLQJ7KLVZLOOPRVWO\RFFXULQPLOGZHDWKHU
7RR/LWWOH+HDW
&KHFNLIWKHFRQWUROKDVDQ\RIWKHIROORZLQJFRQGLWLRQV
5HVHW5DWLRDQG2IIVHW- If reduced heat occurs only in certain weather conditions, adjust the
Reset Ratio and Offset (See Understanding Operating Concept on page 5). If reduced heat
occurs year round, increase the Offset.
6HWEDFNDQG'D\1LJKW6FKHGXOH,IUHGXFHGKHDWRFFXUVRQO\GXULQJVSHFL¿FKRXUVFKHFN
the Day/Night Schedule and the Setback, Boost, and Boost Period values. Either reduce the
Setback or Boost settings or change the Day and Night Schedules.
%RLOHU0RGH6HWWLQJV- The BCP-8W will only modulate boilers their mode is set to Auto or
Standby. Check if any boiler stage is set to Manual, Off, or Standby.
%RLOHUVDUH6KRUW&\FOLQJ
0LQLPXP5XQWLPH- Increase the Minimum Runtime only if all boilers tend to short-cycle.
/DVW6WDJH+ROG,QFUHDVHWKH/DVW6WDJH+ROGRQO\LIWKHOHDGERLOHUWHQGVWRVKRUWF\FOH
6\VWHPLV2YHUVKRRWLQJRU8QGHUVKRRWLQJ
5HDFWLRQ7LPHDQG0LQLPXP5XQWLPH- If the system is overshooting or undershooting,
adjust Minimum Runtime or the Reaction Time. That depends on if the stages are brought on
fast and were not allowed to turn off until the Minimum Runtime elapsed. Or, the stages were
brought on slowly, however, were allowed to turn off quickly.
3,'YV266- If the application the system is used on requires fast response that the normal
PID mode cannot provide, try using the OSS mode and adjust the Throttle Range according to
the system requirements.
7HPSHUDWXUH6HQVRU&KDUW
7(03(5$785(
LQ'HJUHHV°)
9DOXH
LQ2KPV
-30 117720
-20 82823
-10 59076
0 42683
10 31215
20 23089
25 19939
30 17264
35 14985
40 13040
45 11374
50 9944
55 8714
60 7653
70 5941
80 4649
90 3667
100 2914
110 2332
120 1879
130 1524
140 1243
150 1021
160 842
170 699
180 583
190 489
200 412
210 349
220 297
230 253
240 217
250 187
34
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
08/7,3/(%2,/(56:,7+380363,3,1*:,5,1*',$*5$06
Outdoor
Sensor
System
Sensor
120VAC
Boiler 1 Boiler 2 Boiler 3 Boiler 4
Building Heating Loop
SQ-Elite
SQ-Elite-8
SEQUENCING CONTROL
SYSTEM
DHW PUMP
INPUT RATINGS:
115VAC 60Hz, 12VA MAX
Use Copper Conductors Only.
CAUTION:
Risk of Electric Shock.
PWR
LN
12
SENSORS MUST BE GOLD SERIES
SYSTEM
3
DHW
PUMP
5
Stage A
7
Stage B
9
Stage C
11 13
Stage E
15
Stage F
17
Stage D
6 8 10 12 14
16 18
RS485
SYS=144F OD=35F
<A
> C E G
HI HI -- OFF
4
Stage G
19
Stage H
21
OUTDOOR
TEMP
27 29 31
DHW
33
SHUTDOWN
/SETBACK
35
RETURN
TEMP
20 22 28 30 32 34 36
STAGE MENU
Stage E
Stage F
Stage G
Stage H
Stage A
Stage B
Stage C
Stage D
25 26
PRESS
+ -
37 38
PROVE
SYSTEM
TEMP
PROGRAM RUN
23 24
COMB.
AIR
DO NOT APPLY ANY VOLTAGE TO INPUT TERMINALS
COMB. AIR
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
LISTED
99RA
CUS
System
Pump
SQ-Elite-8
SEQUENCING CONTROL
SYSTEM
DHW PUMP
INPUT RATINGS:
115VAC 60Hz, 12VA MAX
Use Copper Conductors Only.
CAUTION:
Risk of Electric Shock.
PWR
LN
12
SENSORS MUST BE GOLD SERIES
SYSTEM
3
DHW
PUMP
5
Stage A
7
Stage B
9
Stage C
11 13
Stage E
15
Stage F
17
Stage D
6 8 10 12 14
16 18
RS485
SYS=144F OD=35F
<A
>C E G
HI LO -- OFF
4
Stage G
19
Stage H
21
OUTDOOR
TEMP
27 29 31
DHW
33
SHUTDOWN
/TSTAT
/SETBACK
35
RETURN
TEMP
20 22 28 30 32 34 36
STAGE MENU
Stage E
Stage F
Stage G
Stage H
Stage A
Stage B
Stage C
Stage D
25 26
PRESS
+ -
37 38
PROVE
SYSTEM
TEMP
PROGRAM RUN
23 24
COMB.
AIR
DO NOT APPLY ANY VOLTAGE TO INPUT TERMINALS
COMB. AIR
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
LISTED
99RA
CUS
Sensor Shiled
System Sensor
Shutdown
Dry Contact
Unit1
Pump1
L
N
Prove
Dry Contact
Unit2
Pump2
Unit3
Pump3
Unit4
Pump4
L
N
The BCP-8W sequencing 4 single-
stage boilers and their boiler pumps.
The boilers are piped in Reverse
Return on the primary loop. The
System output is controlling the
System Pump.
:HLO0F/DLQLVDZDUHWKDWHDFK
LQVWDOODWLRQLVXQLTXH7KXV:HLO
0F/DLQLVQRWUHVSRQVLEOHIRUDQ\
LQVWDOODWLRQUHODWHGWRDQ\HOHFWULFDORU
SOXPELQJGLDJUDPJHQHUDWHGE\:HLO
0F/DLQ7KHSURYLGHGLOOXVWUDWLRQVDUH
WRGHPRQVWUDWH:HLO0F/DLQ¶VFRQWURO
RSHUDWLQJFRQFHSWRQO\
35
%&3:8VHU2SHUDWLRQ0DQXDO
S
8
6
(5
0
(1
8
6
(
4
8
(1
&(
------ SETTINGS ------
Season Winte
r
Set Point
170
F
EMS StPont
170
F
Outdoor Rese
t
1
7
0
F
Target Offse
t
+0
F
Outdoor Cutoff
70
F
Setback
20
F
BACK SELECT
-
--- SEASON ---
Winter
Summer
BACK SAVE
-
---- SET POINT ----
-
140
F
[
]
BACK SAVE
-
---
SETBACK
-------
20
F
[
]
BACK SAVE
-
OUTDOOR CUTOFF -
70
F
[
]
BACK SAVE
2SHUDWLQ
J
XVHUVKDYHDVLPSOL¿HGPHQXWKDWFDQEHDFFHVVHGE
\
FOLFNLQ
J
WKH0HQXEXWWRQ,QVWDOOHUPHQXZLOOKDYHWKHVDPH
s
ett
i
ngs
i
n a
ddi
t
i
on to Startup an
d
more a
d
vance
d
operat
i
on sett
i
ngs. T
h
e
i
nsta
ll
er menu can
b
e access
b
y
h
o
ldi
ng
d
own t
h
e Men
u
b
utton for t
h
ree secon
d
s or more.
3
5
2
*
5$0
&
+$1
*
(
6
(77,1
*
6
T
o be able to chan
g
e the BCP-8W settin
g
s the Pro
g
ram/Run Switch must be set to Pro
g
ram.
Th
e sw
i
tc
h
i
s
l
ocate
d
un
d
er t
h
e Enc
l
osure W
i
r
i
ng Cover for secur
i
ty. T
h
e Enc
l
osure W
i
r
i
ng
C
over can
b
e secure
ly
c
l
ose
d
us
i
n
g
a pa
dl
oc
k.
PROGRAM RUN
6
($
621
B
utton: ME
NU/S
easo
n
:LQWHU
6
XPPHU '
H
ID
X
OW
:
LQWHU
7K
H%&3:Z
LOO
WXUQD
OO
E
R
LO
HUUH
O
D
\
VRIIZ
K
HQ
L
W
L
V
L
Q6XPPHUVHWW
L
Q
J
7
K
H0HVVD
J
H
'LVSOD
\
/LQHZLOOUHDG
Summer
t
o show status
.
----
SEASON
--
-
Winter
Summer
BACK SAVE
:
K
HQ
L
Q:
L
QWHUW
K
H%&3:Z
LOO
DFW
L
YDWHW
K
H6
\
VUH
O
D
\
Z
K
HQHYHUW
K
H2XW
G
RRUWHPSHUDWXUHID
OO
VWRRU
E
H
O
RZW
K
H2XW
G
RRU&XWRII
s
etting. In addition, it will begin heating whenever the System temperature falls below the Set Point. The Message Display
/L
QHZ
LOO
QRW
GL
VS
O
D\DQ\VHDVRQ
L
QIRUPDW
L
RQ
$
/(57
D
O
N
O
T turn power o
ff
to the
B
C
P-
8
W when in off-season
I
f
you do so, the battery will
r
u
n
do
wn
a
n
d
will h
a
v
e
t
o
b
e re
pl
ace
d
.
I
nstea
d
, sw
i
tc
h
S
eason to
S
ummer
.
-
-
EMS SET POINT
-
-
170
F
BACK SAVE
-
NIGHT SCHEDULE -
-
07
:**
Pm
BACK SAVE
-
- DAY SCHEDULE ----
07
:**
Am
BACK SAVE
SYS=
168
FOD
=
45
F
T
GT=172
F
AB
C
<EFG
>
----
LO
BOILER MENU
---
TARGET OFFSET
-
-
+
0
F
[ ]
BACK SAVE
----
RESET RATIO
---
Custom
1(8.00 OD:1.0
0
SYS)
2(4.00 OD:1.0
0
SYS)
3(3.00
OD
:
1.00
SYS)
4(2.00
OD
:
1.00
SYS)
5(1.50
OD
:
1.00
SYS)
6(1.25 OD:1.0
0
SYS)
7(1
.
00
OD
:
1
.
00
SYS)
8(1.00
OD
:
1.25
SYS)
9(1.00
OD
:
1.50
SYS)
10(1.00
O
D:2.00 SYS)
11(1.00
O
D:3.00 SYS)
12(1.00
OD
:
4.00
SYS)
BACK SAVE
36
%&3:8VHU2SHUDWLRQ0DQXDO
6(732,17127$'-867$%/(,1(0602'(
$GMXVWDEOHº)º&º)ºC 'HIDXOWº)º&
Button: MENU/Set Point ,Q6HW3RLQWRU(06P$
7KH6HWSRLQWLVWKHWHPSHUDWXUHYDOXHWKH%&3:ZLOOXVHWRFRQWUROWKHV\VWHP
7KH%&3:ZLOODGGVXEWUDFWRUKROGWKHVWDJHVRIWKHERLOHUVWRPDLQWDLQWKHV\VWHP
temperature around the Set point.
----- SET POINT -----
140 F
[
]
BACK SAVE
7KHV\VWHPWHPSHUDWXUHFDQEHH[SHFWHGWRÀXFWXDWHDURXQGWKHVHWSRLQW7KHDPRXQWRIÀXFWXDWLRQGHSHQGVRQWKH6\VWHP
Settings and Stage Settings.
,IWKH(060RGHZDV(QDEOHGWKH6HW3RLQWZLOOEHVHWE\WKH(06%06V\VWHPDQGZLOOEHDYDLODEOHWREHRQO\UHDG
7KHUDQJHRI6HW3RLQWLQWKH(06LVVHWLQWKH6WDUWXSPHQXDWP$DQGP$
$Q\UHDGLQJEHORZWKHP$RUDERYHP$ZLOOLQGLFDWHDShutdown by EMSPHVVDJHRQWKH0HVVDJH/LQH
5(6(75$7,2
&XVWRP2'6\VWR2'6\V'HIDXOW2'6\V
Button: MENU/Outdoor Reset/Reset Ratio ,Q2XWGRRU5HVHW2QO\
7KH5HVHW5DWLRGHWHUPLQHVKRZWKH6\VWHPZDWHUWHPSHUDWXUHZLOOYDU\ZLWKWKH
outside temperature. With any of the ratios, the colder it becomes outside, the hotter the
temperature of the system water. (See Understanding Operation Concept on page 5)
:LWKD2'6<6UDWLRWKH6\VWHPZDWHUWHPSHUDWXUH6<6ZLOOLQFUHDVH
UDSLGO\DVWKHRXWVLGHWHPSHUDWXUHIDOOVKLWWLQJWKH0D[LPXPRI)DW)RXWVLGH
WHPSHUDWXUH:LWKD2'6<6UDWLRWKH6\VWHPZDWHUWHPSHUDWXUH6<6
ZLOOLQFUHDVHVORZO\DVWKHRXWVLGHWHPSHUDWXUHIDOOV(YHQDW)WKHV\VWHPZDWHU
will only be 125°F, and at 22°F outside, the system water will be 112°F. Such a low
5HVHW5DWLRPLJKWEHXVHGZLWKUDGLDQWÀRRUKHDWLQJDSSOLFDWLRQV
:LWKPRVWEDVHERDUGKHDWLQJDSSOLFDWLRQVD2'6<6VHWWLQJLVDJRRG
SODFHWRVWDUW:LWKD2'6<6UDWLRIRUHYHU\GHJUHHWKHRXWVLGH
temperature falls, the system water temperature is increased one degree.
---- RESET RATIO ---
Custom
1(8.00
OD:1.00 SYS)
2(4.00
OD:1.00 SYS)
3(3.00
OD:1.00 SYS)
4(2.00
OD:1.00 SYS)
5(1.50
OD:1.00 SYS)
6(1.25
OD:1.00 SYS)
7(1.00 OD:1.00 SYS)
8(1.00
OD:1.25 SYS)
9(1.00
OD:1.50 SYS)
10(1.00
OD:2.00 SYS)
11(1.00
OD:3.00 SYS)
12(1.00
OD:4.00 SYS)
BACK SAVE
Outdoor Temperature
Water Temperatur e
70 405060
130
120
110
100
1:4 1:1
4:1
Colder
Warmer
,IUHTXLUHG$GMXVWWKH5(6(75$7,2LQFROGZHDWKHU If the ambient building
temperatures are too cold in cold weather, move the ratio to a higher selection. That is,
LI2'6<6ZDVLQLWLDOO\VHOHFWHGFKDQJHWKHVHOHFWLRQWR2'
6<6,IWKHEXLOGLQJWHPSHUDWXUHVDUHWRRZDUPLQFROGZHDWKHUPRYHWKHUDWLRWR
DORZHUVHOHFWLRQ7KDWLVLI2'6<6ZDVLQLWLDOO\VHOHFWHGFKDQJHWKH
VHOHFWLRQWR2'6<6
&86720,=('5(6(75$7,2
Button: MENU/Outdoor Reset/Reset Ratio/Custom
)RUVLWXDWLRQVZKHUHWKHDYDLODEOHUHVHWUDWLRVGRQRWSURYLGHWKHSHUIHFWEXLOGLQJKHDWORVVHTXLOLEULXPWKHFXVWRPL]HGRSWLRQ
can be used by selecting Custom from the Reset Ratio menu option.
,WSURYLGHVWKHXVHUZLWKWKHFDSDELOLW\RIDVVLJQLQJWZRSRLQWVRQWKHUHVHWUDWLRGLDJUDPDQGXVHWKHOLQHWKDWFRQQHFWVWKRVH
WZRSRLQWVDVWKHFXVWRPL]HGUHVHWUDWLRFXUYH(DFKRIWKHWZRSRLQWVZLOOQHHGDVSHFL¿F6\VWHPDQG2XWGRRU7HPSHUDWXUHWR
identify it on the diagram.
7R6HWWKH¿UVWSRLQWVSHFLI\6\V7HPSDQG2'7HPS7KHQVSHFLI\6\V7HPSDQG2'7HPSWRVHWWKHVHFRQGSRLQW
on the curve. The two points can be anywhere on the line, not necessarily at the ends.
7KHFKDUWVKRZVDQH[DPSOHRIDFXVWRPL]HGFXUYH2'6<6WKDWGRHVQRWH[LVWLQWKHVWDQGDUGFXUYHRSWLRQV,IWKH
RXWGRRUWHPSHUDWXUHUHDFKHV)WKHV\VWHPWDUJHWZLOOEH)
5HPHPEHUWKDWWKH2IIVHW0LQ7DUJHWDQG0D[7DUJHWDSSO\WRDOOUHVHWUDWLRVLQFOXGLQJWKHFXVWRPL]HGUHVHWUDWLRRQHV
37
%&3:8VHU2SHUDWLRQ0DQXDO
-- SET SYS TEMP.1 -
120 F
[
]
BACK SAVE
-- SET SYS TEMP.2 -
170 F
[
]
BACK SAVE
-- AT OD TEMP.1 ---
60
F
[
]
BACK SAVE
-- AT OD TEMP.2 ---
0
F
[ ]
BACK SAVE
Outdoor Temperature (in °F)
70 60 50 40 2030 0 -1010 -2
0
120
140
130
150
160
170
180
100
110
Water Temperature (in °F)
Custom Reset Ratio
Point1: System=120°F
Oudoor=60°F
Point2: System=170°F
Oudoor=0°F
Point1
Point2
Customized Reset Ratio
Max Target
Min Target
287'225&872))7(03(5$785(
$GMXVWDEOH2IIº)º&º)º&2Q 'HIDXOW)&
Button: MENU/Outdoor Cutoff LQ6HW3RLQW
,Q2XWGRRU5HVHWPRGH2XWGRRU&XWRIIZLOODOZD\VH[LVW+RZHYHULQ6HW3RLQWPRGH
if the outdoor sensor is installed, the Outdoor Cutoff screen will automatically appear
after the temperature Set Point has been selected.
- OUTDOOR CUTOFF -
70
F
[
]
BACK SAVE
:KHQWKHRXWGRRUWHPSHUDWXUHULVHVWRWKH2XWGRRU&XWRIISOXVD)GLIIHUHQWLDOWKH%&3:ZLOOWXUQDOOERLOHUVRII7KH
6\VWHPDQG&RPE$LUUHOD\VWKDWZHUHHQHUJL]HGZLOOUHPDLQHQHUJL]HGIRUWKH5XQ2QGHOD\
7KH2XWGRRU&XWRIIFDQEHVHWWR21RU2)),QWKH21SRVLWLRQWKH6\VWHP5HOD\ZLOOUXQUHJDUGOHVVRIWKH2XWGRRU
temperature and the burner stages will be active to hold the set point.
,QWKH2))SRVLWLRQWKH6\VWHP5HOD\ZLOODOZD\VEHRIIDQGDOOVWDJHVZLOOEHRIIDVZHOO
6(7%$&.
$GMXVWDEOH°)°&WR)& 'HIDXOW°)°&
Button: MENU/Setback
7KH6HWEDFNIHDWXUHFDQEHXVHGWRSURYLGHWKH%&3:ZLWKDORZHU6HW3RLQWZKHQ
less load is required.
---- SETBACK -------
0 F
[ ]
BACK SAVE
:KHQWKHRXWGRRUWHPSHUDWXUHIDOOVWRWKHDGMXVWDEOH2XWGRRU&XWRIIWHPSHUDWXUHWKH%&3:ZLOOFRQWURODQGVHTXHQFHWKH
boiler stages to hold the calculated temperature.
:KHQWKHRXWGRRUWHPSHUDWXUHULVHVWRWKH2XWGRRU&XWRIISOXVD)GLIIHUHQWLDOWKH%&3:ZLOOWXUQDOOERLOHUVRII7KH
6\VWHP&RPEXVWLRQ$LU'DPSHUDQGDQ\RWKHU3XPSRUYDOYHUHOD\VWKDWZHUHHQHUJL]HGZLOOUHPDLQHQHUJL]HGIRUWKH5XQ2Q
GHOD\DQGWKHQGHHQHUJL]H
,QDGGLWLRQWKH2XWGRRU&XWRIIFDQEHVHWWR21RU2)),QWKH21RSWLRQWKH6\VWHP5HOD\ZLOOUXQUHJDUGOHVVRIWKH2XWGRRU
temperature and the burner stages will be active to hold the target water temperature.
,QWKH2))SRVLWLRQWKHV\VWHPSXPSZLOODOZD\VEHRIIDQGDOOVWDJHVZLOOEHRIIDVZHOO
'$<1,*+76&+('8/(6
Button: MENU/Setback/Day Schedules/Night Schedule
7KH%&3:KDVWZROHYHOVRIKHDW7KH'D\OHYHOLVXVHGZKHQDEXLOGLQJLVRFFXSLHG
and people are active.
7KH1LJKW6HWEDFNOHYHOLVXVHGZKHQDEXLOGLQJLVQRWRFFXSLHGRUZKHQSHRSOHDUH
sleeping. This setting reduces the calculated temperature by the Setback setting based
RQWKHSURYLGHGVFKHGXOH,IWKH'D\FDOFXODWHGZDWHUWHPSHUDWXUHZDVÛ)DQGWKH
6HWEDFNZDVÛ)WKH1LJKW6FKHGXOHZLOOUXQDWÛ)Û) Û)
-- DAY SCHEDULE ----
07:**Am
BACK SAVE
-- NIGHT SCHEDULE -
10:**Pm
BACK SAVE
,IWKH%RRVWIHDWXUHLVEHLQJXVHGLWXVHVWKH'D\6FKHGXOHDVD%RRVWHQGLQJSRLQW7KDWLVLIWKH'D\6FKHGXOHLVVHWWRVWDUW
DW$0WKH%RRVWZDVVHWWR)DQGWKH%RRVW3HULRGZDVPLQXWHVWKH%RRVWZLOOVWDUWDW$07KHQZKHQLQ
%RRVW%&3:ZLOOUDLVHWKHFDOFXODWHGZDWHUWHPSHUDWXUHE\WKH%RRVWDPRXQW8VLQJWKHSUHYLRXVH[DPSOHDW$0WKH
%&3:ZLOOUDLVHWKHFDOFXODWHGZDWHUWRÛ)Û)Û)XQWLO$0ZKHUHLWZLOOGURSEDFNWRWKHQRUPDOFDOFXODWHG
WHPSHUDWXUHRIÛ)
38
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
39
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
40
%&3:,QVWDOODWLRQDQG2SHUDWLRQ0DQXDO
63(&,),&$7,216
9ROWDJH,QSXW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9$&+]
3RZHU&RQVXPSWLRQ ..................................................9$0D[
2SHUDWLQJ7HPSHUDWXUH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20qF/-7qC to 120qF/49qC
2SHUDWLQJ+XPLGLW\ .................................................20% to 80%
'LPHQVLRQV ...................................................:[+[ô
:HLJKW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 pounds
%&3:63(&,),&$7,216
/HDG6WDJH5RWDWLRQ .......................Time ( 1 to 999 Hours (41 days)), Manual, First-On/First-Off
%&3:2XWSXWVDQG/('V . . . . . . . . . . 11 N.O. S.P.S.T (8 Stages, 1 System, 1 DHW Pump, 1 Combustion Air)
%&3:,QSXWV . . . . . . . . . . . . 1 Sys(Temp), 1 Outdoor, Return Temp, DHW Temp, Ext Setback/Shutdown, Prove
6WDJH0RGHV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto, Standby, Off, On
6WDQGE\7LPH3,'RQO\ ............................................WRPLQXWHV
2XWSXW%XLOWLQ5HOD\5DWLQJV . . . . . . . . . . . . . . . . . 2 Amp inductive (Maximum of 1/4 HP) DW9$&+]
$GG2Q%&3;3DQHOV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up two BCP-8X Panels using RS485
7HPSHUDWXUH'LVSOD\ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fahrenheit or Celsius.
'LVSOD\ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Graphical Alphanumeric (7 rows x 21 char. each)
7HPSHUDWXUH6HQVRU5DQJHV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . qF to 250qF
2XWGRRU&XWRII5DQJH . . . . . . . . . . . . . . . . . . . . . . . . . . . )&WR)&21DQG2))
6HW3RLQW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . )&WR)&
([WHUQDO6HW3RLQW .................. )&WR)& using 420MOD Interface (optional)
5HVHW5DWLR5DQJH2XWGRRU5HVHW2QO\ . . . . . . (WR2XWGRRU6\VWHP:DWHUDQG&XVWRP5HVHW5DWLR
2IIVHW$GMXVWPHQW2XWGRRU5HVHW2QO\ . . . . . . . . . . . . . . . . . . . . . .minus -40°F/-22°C to plus 40°F/22°C
0LQLPXP7DUJHW2XWGRRU5HVHW2QO\........................ 70qF/21qC to 170qF/77qC
0D[LPXP7DUJHW2XWGRRU5HVHW2QO\ . . . . . . . . . . . . . . . . . . . . . . . 90q)qC to 240q)&
5HDFWLRQ7LPH3,'RQO\ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 to 10 minutes
0LQLPXP5XQ7LPH3,'RQO\ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WRPLQXWHV
3XUJH'HOD\3,'RQO\ ........................................... 0.0 to 10.0 minutes
/DVW6WDJH+ROG3,'RQO\ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . )&WR)&
7KURWWOH5DQJH266RQO\ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2°F/1°C to 20°F/11°C
'RPHVWLF+RW:DWHU3ULRULW\2SWLRQV . . . . . . Parallel Piping with Priority or without Priority and Primary Secondary
3XPS5XQ2Q ...................................................WRPLQXWHV
3XPS([HUFLVH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <HVRU1R
6FKHGXOHV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Day and 1 Night (Setback) settings per day
1LJKW6HWEDFN ................................................0°F/0°C to 80°F/44°C
3RZHU%DFNXS ......../LWKLXPFRLQEDWWHU\GD\VPLQLPXP\HDUUHSODFHPHQW0DLQWDLQV&ORFNLQSRZHURXWDJHV
([WHUQDO,QSXWV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shutdown Input, and Prove Input. (Dry Contacts Only)
6HDVRQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Winter and Summer.
%&3;63(&,),&$7,216
([WHQVLRQ1XPEHULQJ ...........................................Toggle Switch A or B
/(' . . . 1 Power (Dual Color Green (A)/Red (B)), 1 Communication, 8 Stage Output relays (Dual Color Green (A)/Red (B))
6WDJH2XWSXWV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 N.O. S.P.S.T.
2XWSXW%XLOWLQ5HOD\5DWLQJV . . . . . . . . . . . . . . . . . 2 Amp inductive (Maximum of 1/4 HP) DW9$&+]
&RQQHFWLRQWR%&3:DQGDQRWKHU%&3; ................................ Two RS485
500 Blaine Street
Michigan City, Indiana 46360
219-879-6561
http://www.weil-mclain.com
HT #059072-00 A
Part Number 550-100-071/0408
