Description
The York S1-025-38913-480 is a belt-type crankcase heater engineered to protect refrigerant compressors from liquid refrigerant migration during off-cycle periods. By maintaining a consistent warmth around the compressor crankcase, this heater prevents refrigerant from mixing with compressor oil — a leading cause of premature compressor failure, slugging, and bearing damage. It is an essential component for any system that experiences extended off-cycle periods or operates in cold ambient environments.
Key Features
- Belt-type design wraps securely around the compressor body for reliable, even heat transfer
- Rated at 480 Volts for compatibility with commercial and industrial HVAC systems
- 70 Watts output provides efficient, low-energy crankcase warming
- Fits compressor diameters ranging from 21.8″ to 29″, offering broad compatibility
- 16″ lead wires for flexible installation and easy field wiring
- Genuine York OEM replacement part — ensures proper fit and performance
Specifications
- SKU: S1-025-38913-480
- Brand: York
- Heater Type: Belt
- Voltage: 480V
- Wattage: 70W
- Compatible Compressor Diameter: 21.8″ – 29″
- Lead Length: 16″
Why Use a Crankcase Heater?
During compressor off cycles, refrigerant can migrate into the crankcase oil sump, diluting lubrication and causing damage on startup. A crankcase heater keeps the oil warm enough to drive off dissolved refrigerant, ensuring proper lubrication from the moment the compressor starts. This is especially critical in low-ambient installations and systems with long off-cycle periods.
Application
Designed as a genuine York OEM replacement, the S1-025-38913-480 is ideal for service technicians and contractors maintaining York commercial HVAC and refrigeration equipment. Always verify compressor diameter and voltage requirements before installation.
