Trane HTR15188 Crankcase Heater

The Trane HTR15188 Crankcase Heater is a heavy-duty, belt-type compressor heater engineered for industrial and commercial HVAC systems operating on 480V 150W power configurations. Designed to maintain refrigerant temperatures above the ambient dew point, this heater prevents liquid migration to the compressor oil during the off-cycle, significantly reducing the risk of slugging at startup. This specific Trane OEM replacement part features a 12" to 13" diameter adjustable fit and includes 22-inch leads for secure integration into the control circuit. It serves as the direct HTR15188 replacement heater for legacy models HTR6627 and HTR12525. Utilizing a belly band heater design, it provides uniform heat distribution around the compressor housing, ensuring reliable lubrication and extending the service life of high-tonnage units. For technicians performing compressor maintenance, this component is essential for protecting scrolls and reciprocating compressors in cold-weather environments and low-ambient cooling applications.

• Optimized Heat Transfer: The belt-type architecture ensures maximum surface contact with the compressor shell for efficient thermal conductance.
• Precise Electrical Specifications: Engineered for 480-volt HVAC systems, drawing a consistent 150 watts to maintain oil viscosity without overheating.
• Direct OEM Compatibility: Verified drop-in replacement for HTR6627 and HTR12525, eliminating the need for field modifications.
• Durable Construction: Built to withstand the high-vibration environment of a commercial condenser while maintaining crankcase heater wattage integrity.

What is the primary function of the HTR15188 in a Trane system?
This component prevents refrigerant from condensing in the compressor oil shell during shutdown, which prevents oil foaming and premature bearing failure during the next startup cycle.

Can this heater be used on compressors smaller than 12 inches?
The Trane HTR15188 is specifically sized for 12" to 13" diameter housings. Using it on smaller compressors may result in poor heat transfer or physical damage to the heater element.

How do I verify if my crankcase heater is functioning properly?
Technicians should check for continuity across the leads when the compressor is off and verify that the amp draw matches the 150W specification at 480V.

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.