The accumulator is installed at the compressor suction to prevent liquid refrigerant slugging; the receiver at the condenser outlet stabilizes refrigerant supply. Kilterra 40XX/44XX heat-exchange accumulators integrate internal heat exchange with liquid separation - separation plus suction/liquid heat exchange in one unit for significantly better system efficiency.
How It Works
The accumulator uses gravity and baffle flow: liquid refrigerant falls into the bottom reservoir while vapor returns to the compressor from the top; a built-in U-tube oil return port meters a small amount of oil and liquid back to the compressor. The 44XX series adds internal heat exchange: the hot high-pressure liquid line and cold low-pressure suction line exchange heat inside the shell - subcooled liquid, superheated suction gas, and clearly better system efficiency.
Key Applications
- Heat pump cooling/heating systems
- Cold storage units
- Ice makers
- Air-cooled chillers
- Low-temperature freezing equipment
Frequently Asked Questions
- What is the difference between accumulator and receiver? - Accumulator sits at suction to prevent slugging; receiver at condenser outlet stabilizes supply.
- Why do heat pumps need larger accumulators? - Defrost sends the heaviest liquid return; undersized volume causes slugging.
- What does the 44XX heat exchange do? - Subcools liquid and superheats suction gas for better efficiency.
- What does slugging sound like? - A crunching, gravel-chewing noise from the compressor.
For 37 years Kilterra has focused on one thing: build refrigeration components right, deliver them on time. Accumulator / Receiver supports OEM/ODM customization - factory visits, sample testing and volume partnerships are welcome.