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compatibility with older mercury-style 42 units may vary based on the bellows design
Automatic Reset: Eliminates the need for manual intervention once the system returns to the 90
By modulating condenser fan motor speed based on liquid line pressure
Carrier 30542007 PCB Control Panel Board
Resideo VR8345M4302 Gas Valve 320788-702 compatibility with older mercury-style 42When you're out in the field and need a reliable swap for 24V furnace controls, the Resideo VR8345M4302 Gas Valve is your go to universal solution. Designed for high capacity applications up to 300,000 BTU hr for natural gas (at 1" pressure drop), this single stage valve handles intermittent pilot ignition, direct spark ignition, and hot surface ignition systems with ease. The 3 4" x 3 4" NPT straight through body and 4 inch swing radius make it easy