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Crankcase Heaters

Maintaining optimal refrigerant flow in compressors is vital for efficiency and longevity in HVAC&R systems. A common issue is preventing the mixing of lubricant oil and liquid refrigerant, which can diminish performance and cause damage. To tackle this, Crankcase Heaters are commonly used—a type of electric resistance heating element designed to warm the oil within the compressor.

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Maintaining optimal refrigerant flow in compressors is vital for efficiency and longevity in HVAC&R systems. A common issue is preventing the mixing of lubricant oil and liquid refrigerant, which can diminish performance and cause damage. To tackle this, Crankcase Heaters are commonly used—a type of electric resistance heating element designed to warm the oil within the compressor. By maintaining a consistent temperature of around 30/35°C, these heaters prevent refrigerant from dissolving into the oil, ensuring it remains warmer than the refrigerant circuit. This temperature difference keeps the refrigerant within designated areas like the evaporator and condenser, promoting system efficiency and smooth operation.


Crankcase heaters prevent refrigerant migration into the compressor shell during downtime by utilizing an electric heating element. Powered by electricity, they ensure the compressor oil and refrigerant remain at suitable temperatures. This preheating process facilitated by crankcase heaters aids in easy startup for compressor motors, reducing strain and wear on internal components. Without this heating element, compressors would endure increased stress during startup, potentially leading to premature failure.


Dry All Crankcase Heaters aimed at resolving the abovementioned issue. These crankcase heaters are equipped for all the popular & standard compressors. Build to enhance energy efficiency, prevent oil-refrigerant mixing and provide extended compressor life are its key features.

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