CLEAN BURN CB-200-CTB, Operator'S Manual

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Coil Tube Boiler Operator's Manual: Models CB-200-CTB, CB-350-CTB, and CB-500-CTB
4-18
Wiring to the Oil Pump
ATTENTION: DO NOT wire the oil pump directly into your building's electrical system. The oil pump must
be activated (receive power from) the burner via the pump electrical circuit.
1. Install the oil pump electrical circuit from the CTB to the oil pump location (refer to Figures
4A/4B).
2. Wire the oil pump circuit according to the wiring schematic provided (Appendix B).
Wiring the Load Loop Circulator
NOTE: To reduce the amount of cold water returned to the boiler (and to protect the boiler from
thermal shock), an optional circulator aquastat can be supplied by your Clean Burn Dealer.
1. Refer to the related information and illustrations in Section 10 and the CTB Wiring Diagram in
Appendix B to locate and understand the wiring for the load loop circulator.
2. The cold water return in your CTB system installation should not be below 140
o
F .
NOTE: For installations where cold water return is a risk, Clean Burn recommends installation
of a blending loop. If a blending loop is installed in your CTB system, the load loop circulator
should be wired separately from the CTB control box. Refer to Section 10 for additional
information.