ClimateMaster 33B0043N07 TXV 318518-761 NEMA 4X rated watertight enclosure

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

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

5 PSI rating typical for these units

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

The Johnson Controls A19ADB-31 is a heavy-duty

ClimateMaster 33B0043N07 TXV 318518-761 NEMA 4X rated watertight enclosureThe 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