NH3/DME = R 723 – Natural refrigerants as reasonable alternatives..
The Goeldner-Motion family
GOELDNER COMPRESSOR have proven themselves for decades in many applications. Now the semi-hermetic compressors of the 2-cylinder-series HS 12, HS 22, HS 32 and the 4-cylinder semi-hermetic compressors HS 34 are optionally equipped with a frequency instead of the terminal box. Because of the special lubricating system of the type HS 12 and HS 22 and the shaft bearing with ball bearings, has a working range from 20Hz to 60Hz without major restrictions with the refrigerants R134a, R404A/R507, R407C in all the above mentioned types of Goeldner-motion series. [Read more…]
“Die Kälte“, Issue 8/2002, Page 18. Air conditioning for a historic preservated city hotel
Air conditioning for a protected monumet city hotel.
– Compliance with the special requirements of historic preservation through variable speed compressor
H22 Semi-hermetic Compressor

Detailed information on semi-hermetic compressors H22-family (German) >>>
“Die Kälte“, Issue 4/2002, Page 60. water powered heat pump
water powered heat pump
– In addition to the geothermal energy and the drive comes from the environment.
“Kälte Klima Aktuell“, Issue 2/2002, Page 30. frequency inverted Semi-hermetic Compressor
frequency inverted Semi-hermetic Compressor.
Practical tips – What you should consider.
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