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Common Questions: Which boiler models are compatible with the 100167775
Press the STOP/RESET button on the VFD keypad or cycle power at the unit disconnect
A failed switch typically prevents the system compressor or fans from engaging
While the heater can be wired directly to the compressor contactor (normally closed auxiliary contacts)
Laars Heating Systems V0079400 Gas Valve 322838-754 Common Questions: Which boiler modelsThe Laars V0079400 Gas Valve is a critical replacement component engineered specifically for Laars heating systems requiring a 24V gas control valve. This valve is calibrated for a 3" WC manifold pressure (Natural Gas) and features a standard 1 2" NPT inlet and outlet for seamless integration into existing manifolds. Designed for high reliability ignition sequences, the V0079400 ensures precise fuel metering and consistent pilot or hot surface