Lennox 52W76 TXV 321702-401 The National Comfort Products 14260020

The National Comfort Products 14260020 Control Board is a high-reliability heat pump defrost control designed for precise time and temperature defrost cycles

eliminating guesswork regarding flow rates and tonnage

Replacing a 25A contactor with this 30A model provides additional headroom and thermal resilience

Key Features and Specifications

Lennox 52W76 TXV 321702-401 The National Comfort Products 14260020The Lennox 52W76 is a 5 ton thermostatic expansion valve (TXV) engineered for high capacity R 410A refrigerant systems. Designed as a direct OEM replacement part, this metering device features 1 2" x 1 2" ODF connections and a 30 inch capillary tube for precise superheat regulation. As a veteran technician knows, maintaining the correct refrigerant flow is critical to preventing evaporator flooding or compressor slugging; the 52W76 achieves this by