METAL CRANKCASE HEATER

LETT Crankcase Heater is fitted to refrigerating compressors to prevent the refrigerant from being absorbed by the oil in Crankcase.It has advanced design providing superior reliability and performance.
Malleable Aluminium case for superior heat transfer capability. ‘M’ shape design for improved surface contact area and working life.
Features
Patented aluminium cover design
Superior heat transfer capability
Safety – Smart Earth design
High Temperature & Strength Insulation
Reliability – Corrosion resistant
Energy saving
Cost-effective

Specifications
Learn More About Crankcase Heater
Risk for your compressor
1. Liquid Refrigerant Migration

> Migration of liquid refrigerant to the compressor is a natural occurrence
> The amount and severity of this migration depends on;
> Refrigerant and oil charge
> Length of shutdown interval
> The temperature difference between crankcase oil and the rest of the system.
As the temperature of oil drops, refrigerant is absorbed faster and more completely.
2. Oil Slugging
>When refrigerant has mixed with oil and the compressor starts, oil slugging occurs:
>the mixture foams violently and
>all or most of the oil charge is pumped
>Broken scrolls, valves, damaged pistons and blown head gasket can result.
Solution = Isen cranckcase heater
>By optimising the temperature of crankcase oil, our heater prevents refrigerant migration.
>Oil is kept warmer than the system temperature and refrigerant is forced to
remain in the condenser, evaporator or accumulator.
> Improved performance & reliability ensures efficient & long term protection

The next generation in compressor protection technology.