The ICFD Defrost Module, designed for ammonia systems, saves energy by keeping excess gas from bypassing the evaporator.
Danfoss's ICFD Defrost Module (type ICFD 20) for ammonia systems, at botton, packaged into ICF Valve Station.
Danfoss displayed its new ICFD Defrost Module (type ICFD 20) for ammonia systems, packaged into the ICF Valve Station, at its booth at the RETA (Refrigerating Engineers and Technicians Association) National Conference, held in Hershey, Pa, September 25-29.
Unlike most defrost devices for evaporators, which use pressure regulators, the Defrost Module employs a mechanical float ball and a liquid drain method, noted Jim Hower, industrial refrigeration national sales manager for Danfoss.
“It keeps excess hot gas from bypassing the evaporator,” only allowing liquid to pass through, he said. This up-to-90% reduction of blow-by gas results in less loading of compressors, which in turn saves energy. End users can cut energy costs by $1 per defrost per evaporator and achieve less than a two-year payback on the extra cost of the device, he added. The module serves evaporator capacity up to 58 TR (200 kW).
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This is a simplified, more effective solution than previous designs. We created a device that is self-regulating.”
– Terry Chapp, national business development manager for Danfoss.
