CFC-E Installation Manual
Part No. 750-459 1-23
1.8 - Electrical Connections
A qualified electrician or service technician must make the electrical connections to the boiler.
For typical CFC-E electrical component mounting see the electrical diagram mounted on the inside of
the removable front panel.
For specific information on your boiler electrical system refer to the Cleaver-Brooks wiring diagram
provided with the boiler.
The following connections are to be made through the electrical supply channels to the control panel.
• Power wiring - right side electrical supply channel. AC power is to be connected to the incoming power terminals.
• Customer connections should be brought in on the right side - refer to wiring diagram.
• Temperature sensor wiring - left side electrical supply channel.
Note: The following temperature sensor cables should be run through the left side wiring channel.
• Stack temperature sensor (optional).
• Outdoor temperature sensor (optional).
Refer to figures below for remaining connections.
The blower signal wiring must be isolated from the blower power wiring and the high voltage
ignition cables.
Ensure ignition cables are properly connected and not in direct contact with any sharp metal
edges.
Note: For CFC-E 3000-6000 — a ship-loose transformer is required for non-460V operation. The
transformer can be supplied with the boiler or by others. Transformer installation and wiring
should be performed by a licensed electrician and must comply with local codes.
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