including the FX4D and PF4M series

The Parker CV5P-8FS-8FS ensures unidirectional flow for HVAC backflow prevention in both residential and light commercial systems

Use a multimeter to check the coil resistance

OEM Electrical Precision: Maintains 120V to 24V step-down accuracy to protect expensive integrated control platforms from voltage spikes

ensuring handle-switching cycles without premature pitting or contact welding

Johnson Controls C-202-2 Ratio Cumulator Refrigerant including the FX4D and PF4MJohnson Controls C 202 2 Ratio Cumulator, 2: 1 Ratio, Reverse Acting, 2 Psig Minimum Output Pressure, 25 Psig Maximum Supply Pressure, Adjustable Starting Point of 20 to 12 Psig