How do I wire my spark ignition gas boiler with a power venter and CK-40 series?
Locate the terminal on spark ignition module that will be 24 volts hot only on a call for the ignition module to start. This terminal in many cases will be either 24V or TH-W. Remove the wire from this terminal and re-route to T1 on the CK-40 series control kit, and a new wire from T3 on CK-40 control kit to one side of the GSK-3 (if used) back to this same terminal on the ignition module. Run T2 to a 24 volt common. Follow CK-40 series instructions for the L1, N, & M terminals.
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