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Weil-McLain BCP-8 Boiler Control Panels (BCP)

Installation and Operation Instructions Manual - Page 34

For BCP-8. Also, The document are for others Weil-McLain models: BCP-8W, BCP-8X

PDF File Manual, 40 pages, Read Online | Download pdf file

BCP-8 photo
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34
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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.
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