Subtract the crankcase pressure from the oil pump discharge pressure while the compressor is running

" or uneven heating across the burner manifold

Drop-in Compatibility: Designed specifically to replace older Carrier HH57AC077 and HH57AC076 models without mounting modifications

Ensure the bulb is mounted at the 4 or 8 o’clock position on the suction line for accurate sensing

York 025-25515-000 Fuse 319825-402 Subtract the crankcase pressure fromThe York 025 25515 000 Fuse is a critical circuit protection component designed for high performance HVACR systems, specifically engineered for York YK3 High Speed Inverter Heat Pumps and industrial chillers. This 7 amp time delay fuse provides essential overcurrent protection for internal control boards and sensitive inverter components, ensuring field reliability under varying thermal loads. As a genuine OEM York replacement part, it maintains the