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BOILER SYSTEMS AND OPERATION
CONTROLLER MANUAL – SFC/SFB SERIES BOILERS
REMOVING & WIRING THE
CONTROLLER
The unit ships with an optional field-wiring junction box. This box provides wiring
connections for a space-heating pump, a DHW pump, and an outlet for unit
power. A certified harness from the wiring box connects to the movable controller
tray.
You do not require a junction box if: 1. the unit’s integral pump provides
adequate flow through the space-heating heat emitters
and
2. there is no DHW
tank.
REMOVING THE CONTROLLER
The figure below shows you how to pull out the controller.
Figure 2: Pulling out the controller tray
Figure 1: Junction box
