Description
York OEM Crankcase Heater — S1-025-49809-000
The York S1-025-49809-000 is a genuine OEM crankcase heater engineered to protect compressor integrity in York HVAC systems. By maintaining oil temperature during compressor off-cycles, this heater prevents refrigerant from migrating into and diluting the compressor oil — a leading cause of premature compressor failure and costly system downtime.
Product Overview
Crankcase heaters are a critical line of defense in refrigeration and air conditioning systems. When a system shuts down, refrigerant can condense and absorb into the compressor oil. Upon restart, this refrigerant-saturated oil can cause slugging, oil foaming, and bearing damage. The York S1-025-49809-000 keeps the crankcase warm enough to drive off refrigerant and maintain proper oil viscosity, ensuring reliable startups and extended compressor life.
Key Specifications
- Brand: York (OEM)
- Part Number: S1-025-49809-000
- Voltage: 240V
- Heater Type: Crankcase (CC)
- Diameter: 5.468 inches
Features & Benefits
- Genuine York OEM replacement part for assured fit and performance
- 240V design compatible with standard commercial HVAC power supplies
- 5.468-inch diameter for precise, secure fit on compatible compressor housings
- Prevents refrigerant migration into compressor oil during off-cycles
- Reduces risk of compressor slugging, oil foaming, and bearing wear on startup
- Helps extend overall compressor service life and reduce maintenance costs
- Direct OEM replacement — no modifications required
Application
Designed for use in York residential and commercial HVAC systems requiring a crankcase heater with a 5.468-inch diameter and 240V power input. Always verify compatibility with your specific unit model before installation.
Installation Note
Crankcase heaters should be energized for a minimum of 8–24 hours before initial system startup or after extended shutdown periods to ensure full refrigerant evacuation from the compressor oil.
