BSC Installation and Operation Manual
550-100-074/0408
BSC
MADE IN U.S.A.
PREV.
SAFETY
GROUND
MUST BE
CONNECTED
OUTDOOR
TEMP
SYSTEM
PROVE
STAGE
A
STAGE
B
MENU FUNCTIONS
SELECT enters menus or accepts changes
ADJUST selects menu items or changes settings
BACK returns to previous menu
STAGE selects stage menus or next stage
PREV./NEXT steps through output status
SYSTEM
LINE
NEUTRAL
STAGE
HELP NEXT
PRESS TO
SELECT
BACK
ADJUST
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
B1
B2
B3
B4
NETWORK
4-20mA
SHUTDOWN
SYSTEM
TEMP
INPUTS
ACD
<A> B C D
100 53 OFF STBY
OD= 31
o
F SYS= 114
o
F
B
SYS
A
OPERATING LIMIT
OUTPUTS
CDB
T
T
123456789 1110
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY
15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz
30VA MAX
USE COPPER WIRE,
CLASS 1 WIRE ONLY
S
+
DO NOT APPLY ANY VOLTAGE
TO SENSOR TERMINAL
FULL MODULATION
SEQUENCING CONTROL
LOCKOUT
INPUTS
STAGE
C
STAGE
D
B5
B6
B7
B8
EMS INPUT
+
SIGNAL
SHIELD
12
A
B
C
D
MODULATION OUTPUTS
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
LISTED
99RA
US
C
U
L
R
GND mA Volt
-++
GND mA Volt
-++
GND mA Volt
-++
GND mA Volt
-++
INSTALLATION AND OPERATION INSTRUCTIONS MANUAL
BSC
Modulating Control
BSC-BAC
Modulating BACnet Control
BSC-8X
Modulating Extension
This Weil McLain control is strictly an operating control; it should never be used as a
primary limit or safety control. All equipment must have its own certified limit and safety
controls required by local codes. The installer must verify proper operation and correct any
safety problems prior to the installation of this Weil McLain control.
WARNING
MODULATING BOILER CONTROL WITH BACNET COMMUNICATION OPTION
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