the heat pump failing to initiate a defrost cycle

These fittings are primarily designed for HVACR and hydraulic use

Compatible with a broad range of models

it is recommended to inspect and replace the venter motor isolators (part 194534) and the housing gasket to ensure a gas-tight seal

allowing it to operate in any orientation

Emerson Alco 047501 Solenoid Valve the heat pump failing toThe Emerson Alco 100RB2F3 (047501) is a 2 way normally closed solenoid valve designed for performance in liquid, suction, and discharge gas service applications. Featuring a 3 8" flare connection, this direct acting refrigeration solenoid valve is optimized for precise refrigerant flow control. With an R22 cooling capacity of 1. 27 tons and an R134a capacity of 1. 2 tons, this valve body is compatible with a wide range of common refrigerants including