BMC and
BMC LAYOUT
Program Switch to restrict access to function changes. This switch is covered with Wiring Enclosure.
The digital display shows the system status, set point, lead stage <in brackets>, and status of each stage.
To view and adjust settings, press the appropriate buttons.
LED indicates the | Buttons function is presented on | |
Bottom Row of display. | ||
associated relay status. | ||
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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.
C 
US
BMC
Full Modulation Sequencing Control
SYSTEM
A
B | |||
C | |||
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PWR
LN
1 2
ENCLOSED |
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ENERGY |
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MANAGEMENT | CAUTION: RISK OF ELECTRIC SHOCK |
EQUIPMENT | |
LISTED | More than one disconnect switch may be required |
99RA | to |
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| PROGRAM |
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| RUN |
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| DO NOT APPLY ANY VOLTAGE | |||||||||||||
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| TO INPUT TERMINALS | |||||||||||||
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SYS |
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| OUTDOOR | SYSTEM | SYSTEM | SHUTDOWN | ||||||||||||||
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| /TSTAT | ||||||||||||||||||||||||||
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| CUR / VLT | CUR / VLT | CUR / VLT | CUR / VLT |
| TEMP | TEMP | PROVE | ||||||||||||||||||||||||||||
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| /SETBACK | ||||||||||||||
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| GND | mA | VLT | GND | mA | VLT | GND | mA | VLT | GND | mA | VLT |
| T | O | T | O |
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| - | + | + | - | + | + | - | + | + | - | + | + |
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3 | 4 | 5 | 6 | 7 |
| 8 | 9 |
| 10 | 11 | 12 |
| 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | |||||||||||
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EXTENSION MODULE
120VAC Power | Four N.O. Boiler startup relay | When connecting Outdoor and System | ||
outputs. Each is wired in series | Sensors, no Polarity is observed. | |||
| with each boiler's limit circuit. | Prove terminals must be connected | ||
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| for BMC to operate boilers. | |
System Output controls | Four modulation outputs can be | Connect Extension panels to | ||
pumps, valves, or other | add additional stages using | |||
system components. | Startup Menu to determine the type of | a 6 pin phone line only (cable | ||
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| output for each stage. | provided with | |
3
