As a balanced port hard shut-off TXV

Always verify transformer output (minimum 18VAC) and ground continuity before installation to prevent damaging the new 100167908 circuitry

The magnetic clutch technology protects the gear train from stall conditions and maintains constant output force without the need for complex linkages

Key Benefits Precise Humidity Monitoring: Features a 3% accuracy rating for exacting relative humidity control

Fail-Safe Operation: Provides 100% automatic shutoff of the pilot gas flow upon flame failure to prevent gas buildup

Copeland Comfort Control (Alco) 046474 Power Assembly 319848-301 As a balanced port hardThe Copeland Comfort Control (Alco) 046474 Power Assembly, also identified as model XB 1019RZ1B, is a critical OEM replacement component engineered for low temperature R502 refrigeration systems. Designed for precision thermal expansion valve control, this replacement power head features a 1 4" SAE flare equalizer connection and a 5 foot capillary tube for flexible positioning in compact evaporator coils or remote locations. With an application range