Armstrong Furnace H4TXV03-1 TXV Valve 321702-401 The environmentally protected electronics are

The environmentally protected electronics are robust enough to handle the freeze-thaw cycles of suction lines and are compatible with all non-corrosive refrigerants and ammonia

Using natural gas valves with liquid propane can cause dangerous over-firing due to different orifice and pressure requirements

You must select the appropriate AMG or ASC2 series coil based on your system's voltage requirements (e

As a veteran-grade furnace burner assembly

and it is rated for low-ambient temperatures down to -40°F

Armstrong Furnace H4TXV03-1 TXV Valve 321702-401 The environmentally protected electronics areThe Armstrong Furnace H4TXV03 1 TXV Valve is a critical high precision metering device engineered to optimize the performance of R410A refrigerant systems. As an essential component for 4 to 5 ton HVAC units, this thermostatic expansion valve (part number 1. 851365) ensures the exact volume of refrigerant enters the evaporator coil, preventing liquid slugging and maximizing heat exchange efficiency. The H4TXV03 model serves as the direct updated