Trane HTR3384 Crankcase Heater

The Trane HTR3384 is a professional-grade insertion type crankcase heater designed to maintain critical compressor oil temperatures during the off-cycle. Operating at 230 Volts with a 65-Watt output, this heater prevents refrigerant migration and oil dilution, effectively mitigating the risk of liquid slugging and mechanical failure during cold-weather startups. As a direct replacement for HTR1298, this OEM component ensures a precise mechanical fit with its 1/4" diameter and 4 3/4" insertion length. Field installation is streamlined via the 74.5" lead wires, providing ample length for routing to the control circuit. Integrating this Trane HVAC replacement part into a crankcase heater installation is a standard preventative maintenance step for Trane and American Standard split systems, heat pumps, and packaged units. This compressor sump heater is engineered for high-heat environments, featuring durable insulation to resist the typical cracking and brittleness seen in older units exposed to heavy vibration and thermal cycling.

• Prevents Liquid Slugging: Maintains oil temperature above the refrigerant saturation point to prevent harmful liquid migration.
• Extends Compressor Life: Reduces wear on internal components by ensuring proper lubrication viscosity during startup.
• Direct OEM Fit: Drop-in replacement for the Trane HTR1298, eliminating the need for field modifications.
• Long Lead Wire Design: 74.5-inch leads simplify wiring in both residential and light commercial compressor compartments.
• High-Durability Construction: Specifically designed to withstand the vibration and high-ambient temperatures of an active compressor sump.

Is the HTR3384 compatible with my heat pump?
This 230V 65W heater is commonly used in Trane unit models like the TWP024C100A3 and the CWR series. It is designed for systems requiring a 1/4" diameter insertion point.

What is the purpose of the 4 3/4" insertion length?
The insertion length ensures the heating element is properly seated within the compressor well to provide efficient heat transfer directly to the oil reservoir.

Can I use this to replace a different wattage heater?
For optimal performance and safety, you should always match the manufacturer's specified wattage and voltage. This 65W unit is the designated HTR3384 replacement for several older superseding part numbers.

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.