Carlyle 06DA660076 Crankcase Heater

The Carlyle 06DA660076 Crankcase Heater is a critical 480V, 125W OEM component designed specifically for 06D and 06E series semi-hermetic compressors. As a veteran-grade immersion-type heater, it functions as a direct drop-in replacement for the HT36DL480. This unit is essential for maintaining optimal oil temperature during the off-cycle, preventing refrigerant migration and subsequent oil dilution. By keeping the lubricant at a temperature 15°F to 25°F above the system’s saturated suction temperature, this heater ensures proper compressor lubrication and prevents liquid slugging upon startup. Built for 480VAC industrial power systems, it features high-grade 73-inch leads to accommodate various terminal box configurations. For technicians managing HFC/POE applications, utilizing a 125W crankcase heater is a required standard to stabilize viscosity and protect internal bearings from wear during cold-start conditions.

Key Benefits:

• Direct OEM Compatibility: Verified replacement for HT36DL480 and compatible with Carrier/Carlyle 06D and 06E compressors.
• Optimized Heat Transfer: 125-watt power rating provides efficient thermal saturation to penetrate heavy refrigeration oil.
• Industrial-Grade Construction: Designed for high-voltage 480V HVAC systems with moisture-resistant lead wires and durable heating elements.
• Prevents Refrigerant Migration: Actively counters the migration of liquid refrigerant into the crankcase during idle periods.

Common Questions:

How do I install the 06DA660076 on a 06D compressor?
This is an immersion heater that should be seated fully into the heater well. Ensure the power is locked out and the crankcase is de-pressurized if accessing internal ports, though most wells are dry-sleeve designs.

What is the primary function of this 125W heater?
It maintains the refrigeration oil viscosity by keeping it warm enough to prevent liquid refrigerant from condensing in the sump, which causes foaming and mechanical failure.

Can I use this for 230V applications?
No, this model is specifically rated for 480V AC. Using it on lower voltages will result in insufficient heat output, failing to protect the compressor.

Is there a specific wiring requirement?
Standard practice for Carlyle semi-hermetic compressors is to wire the heater through a normally closed (NC) auxiliary contact on the compressor contactor so it energizes only when the motor is off.

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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.