Tamper Resistance: Setpoint sliders are compatible with locking stops (HFO-0027) to maintain facility-wide energy standards

Key Benefits for the Jobsite: Fixed 7°F Differential: Optimizes compressor run times and prevents rapid cycling in refrigeration circuits

The A22-391 features an SPDT switch and a constant differential

Proper 240V to 24V transformer integration is critical for preventing control board failure and ensuring responsive relay activation during peak cycles

York S1-025-41017-000 Expansion Valve 30067439-890 Tamper Resistance: Setpoint sliders areThe York S1 025 41017 000 is an OEM grade refrigerant metering device designed specifically for evaporator coils in legacy R22 HVAC systems. As a critical Thermostatic Expansion Valve (TXV), it maintains precise superheat by regulating the flow of liquid refrigerant into the evaporator, preventing compressor slugging while maximizing cooling capacity. This valve features standard 3 8" ODF inlet and 3 8" ODF outlet sweat connections, allowing for a