York S1-025-37399-480 Belt
The York S1-025-37399-480 Crankcase Heater is a critical preventative maintenance component designed for HVAC compressor protection in commercial and industrial cooling systems. This belt-type crankcase heater operates at 480 Volts and delivers 70 Watts of constant heat to keep oil temperature above the refrigerant's saturation point, effectively preventing refrigerant migration during off-cycles. Engineered with 48-inch leads and a flexible design, it accommodates compressor diameters ranging from 21.8 to 29 inches. Reliable heating ensures consistent oil viscosity, which is essential for proper lubrication at startup and the prevention of liquid slugging or foam-induced bearing wear. For technicians servicing York or Source 1 replacement parts, this heater provides a precise fit for high-voltage applications where maintaining the integrity of the sealed system refrigeration circuit is paramount. Its rugged construction resists environmental fatigue, ensuring long-term thermal transfer efficiency in demanding environments.
Key Benefits for Technicians
- Optimized Thermal Transfer: The 70W power output is specifically calibrated for 480V circuits to maintain ideal sump temperatures.
- Universal Belt Design: Adjustable strap fits 21.8-29" diameter housings, making it a versatile OEM replacement part for a wide range of large-scale compressors.
- Extended Lead Length: Integrated 48-inch electrical leads simplify routing through tight control cabinets and conduit paths.
- System Longevity: Prevents compressor flooded starts by ensuring refrigerant remains in the condenser and evaporator rather than the oil sump.
Common Technical Questions
Does this heater require a specific thermostat or controller?
While the York S1-025-37399-480 can be wired for continuous operation, most contractors wire it through the compressor contactor auxiliary contacts to ensure it energizes only when the compressor is idle.
What happens if the belt is installed on a compressor smaller than 21.8 inches?
If the diameter is below the minimum 21.8-inch specification, the belt will not achieve the necessary surface contact for heat transfer, leading to premature element failure and inadequate oil heating.
Can I use this 480V heater on a 230V or 208V system?
No. Operating a 480V crankcase heater at a lower voltage will significantly reduce the wattage output (W = V²/R), resulting in insufficient heat to prevent refrigerant migration.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $77.77
-65%$77.77
$27.22York S1-025-37399-480 Belt
The York S1-025-37399-480 Crankcase Heater is a critical preventative maintenance component designed for HVAC compressor protection in commercial and industrial cooling systems. This belt-type crankcase heater operates at 480 Volts and delivers 70 Watts of constant heat to keep oil temperature above the refrigerant's saturation point, effectively preventing refrigerant migration during off-cycles. Engineered with 48-inch leads and a flexible design, it accommodates compressor diameters ranging from 21.8 to 29 inches. Reliable heating ensures consistent oil viscosity, which is essential for proper lubrication at startup and the prevention of liquid slugging or foam-induced bearing wear. For technicians servicing York or Source 1 replacement parts, this heater provides a precise fit for high-voltage applications where maintaining the integrity of the sealed system refrigeration circuit is paramount. Its rugged construction resists environmental fatigue, ensuring long-term thermal transfer efficiency in demanding environments.
Key Benefits for Technicians
- Optimized Thermal Transfer: The 70W power output is specifically calibrated for 480V circuits to maintain ideal sump temperatures.
- Universal Belt Design: Adjustable strap fits 21.8-29" diameter housings, making it a versatile OEM replacement part for a wide range of large-scale compressors.
- Extended Lead Length: Integrated 48-inch electrical leads simplify routing through tight control cabinets and conduit paths.
- System Longevity: Prevents compressor flooded starts by ensuring refrigerant remains in the condenser and evaporator rather than the oil sump.
Common Technical Questions
Does this heater require a specific thermostat or controller?
While the York S1-025-37399-480 can be wired for continuous operation, most contractors wire it through the compressor contactor auxiliary contacts to ensure it energizes only when the compressor is idle.
What happens if the belt is installed on a compressor smaller than 21.8 inches?
If the diameter is below the minimum 21.8-inch specification, the belt will not achieve the necessary surface contact for heat transfer, leading to premature element failure and inadequate oil heating.
Can I use this 480V heater on a 230V or 208V system?
No. Operating a 480V crankcase heater at a lower voltage will significantly reduce the wattage output (W = V²/R), resulting in insufficient heat to prevent refrigerant migration.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The York S1-025-37399-480 Crankcase Heater is a critical preventative maintenance component designed for HVAC compressor protection in commercial and industrial cooling systems. This belt-type crankcase heater operates at 480 Volts and delivers 70 Watts of constant heat to keep oil temperature above the refrigerant's saturation point, effectively preventing refrigerant migration during off-cycles. Engineered with 48-inch leads and a flexible design, it accommodates compressor diameters ranging from 21.8 to 29 inches. Reliable heating ensures consistent oil viscosity, which is essential for proper lubrication at startup and the prevention of liquid slugging or foam-induced bearing wear. For technicians servicing York or Source 1 replacement parts, this heater provides a precise fit for high-voltage applications where maintaining the integrity of the sealed system refrigeration circuit is paramount. Its rugged construction resists environmental fatigue, ensuring long-term thermal transfer efficiency in demanding environments.
Key Benefits for Technicians
- Optimized Thermal Transfer: The 70W power output is specifically calibrated for 480V circuits to maintain ideal sump temperatures.
- Universal Belt Design: Adjustable strap fits 21.8-29" diameter housings, making it a versatile OEM replacement part for a wide range of large-scale compressors.
- Extended Lead Length: Integrated 48-inch electrical leads simplify routing through tight control cabinets and conduit paths.
- System Longevity: Prevents compressor flooded starts by ensuring refrigerant remains in the condenser and evaporator rather than the oil sump.
Common Technical Questions
Does this heater require a specific thermostat or controller?
While the York S1-025-37399-480 can be wired for continuous operation, most contractors wire it through the compressor contactor auxiliary contacts to ensure it energizes only when the compressor is idle.
What happens if the belt is installed on a compressor smaller than 21.8 inches?
If the diameter is below the minimum 21.8-inch specification, the belt will not achieve the necessary surface contact for heat transfer, leading to premature element failure and inadequate oil heating.
Can I use this 480V heater on a 230V or 208V system?
No. Operating a 480V crankcase heater at a lower voltage will significantly reduce the wattage output (W = V²/R), resulting in insufficient heat to prevent refrigerant migration.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
