ClimateMaster 33B0043N07 TXV 318518-761 Broad Compatibility: Direct-fit for Lochinvar

Broad Compatibility: Direct-fit for Lochinvar OA400-801 outdoor condensing water heaters and select A

it prevents unsafe operation and protects the heat exchanger from damage due to restricted airflow or mechanical failure

NEMA 4X rated watertight enclosure ensures electrical components remain protected in washdown or outdoor environments

This HVAC control board assembly is essential for troubleshooting electrical faults and restoring full functionality to compatible 1-ton through 6-ton wall-mount units where the original control panel has experienced component failure or environmental degradation

this component is essential for protecting scrolls and reciprocating compressors in cold-weather environments and low-ambient cooling applications

ClimateMaster 33B0043N07 TXV 318518-761 Broad Compatibility: Direct-fit for LochinvarThe ClimateMaster 33B0043N07 TXV is a critical OEM metering device engineered for 2 ton high performance geothermal and water source heat pump systems. This thermostatic expansion valve features 3 8" x 3 8" ODF sweat connections and a 30 inch capillary tube, facilitating precise refrigerant flow control into the evaporator. Designed to maintain optimal superheat, this valve protects the compressor from liquid slugging while maximizing system energy