Description
York S1-025-33474-480 Belt Type Crankcase Heater Overview
The York S1-025-33474-480 is a belt-style crankcase heater engineered to protect refrigerant compressors from refrigerant migration and oil dilution during off-cycle periods. By maintaining a controlled temperature around the compressor crankcase, this heater helps prevent liquid slugging at startup, extending compressor life and improving overall system reliability.
Key Specifications
- SKU: S1-025-33474-480
- Heater Type: Belt Type
- Voltage: 480 Volts
- Wattage: 90 Watts
- Compatible Compressor Diameter: 29–36 inches
- Lead Length: 64 inches
- Brand: York
Features & Benefits
- Belt-style design wraps securely around the compressor shell for consistent, even heat distribution
- Rated at 480V for compatibility with commercial and industrial HVAC systems
- 90-watt output provides efficient heating without excessive energy consumption
- Wide diameter range (29–36″) accommodates a variety of compressor sizes
- 64-inch leads offer flexible routing and easy installation in tight equipment spaces
- Helps prevent refrigerant migration and oil dilution during compressor off cycles
- Reduces risk of liquid slugging and compressor damage at startup
- Genuine York OEM replacement part for assured fit and performance
Application
This crankcase heater is designed for use in commercial HVAC and refrigeration systems where compressor protection is critical. It is particularly well-suited for rooftop units, chillers, and other large-capacity systems operating on 480V power supplies. Always verify compatibility with your specific compressor model before installation.
Why Choose a Crankcase Heater?
Crankcase heaters are a low-cost, high-value investment in compressor longevity. By keeping the compressor oil warm during the off cycle, they prevent refrigerant from dissolving into the oil — a leading cause of premature compressor failure. Installing a quality OEM heater like the York S1-025-33474-480 is a best practice for any commercial refrigeration or HVAC system.
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