This 28HQ400071 model is built to Carrier factory specifications

The Reznor 100799 is an automatic reset limit control

For technicians performing furnace repair or vent system upgrades

Key Benefits: Direct Replacement: Facilitates an immediate upgrade or maintenance swap for the discontinued A-4000-148 model

Direct Retrofit: Engineered specifically to replace legacy 50-GB6-01 and 50-503-02 gas valves

Parker 903406P Valve Els PW 17895 This 28HQ400071 model is builtThe Parker 903406P is a professional grade Sporlan ADRSE 2 discharge bypass valve designed for precise compressor capacity control in commercial refrigeration and air conditioning systems. This direct acting bypass regulating valve features a 0 80# pressure range and 1 2" ODF solder connections, making it an essential component for maintaining minimum evaporator pressure during low load conditions. Built with a rugged brass body and a stainless steel