Partial-load efficiency improved by up to 40%

Beginning immediately, GEA Happel Klimatechnik GmbH is offering new water-cooled heat pumps for indoor installation, and with the refrigerant R410A. These systems have been optimized for energy-efficient operation, and they exceed the efficiency of their predecessor models (which used refrigerant R407C) at partial load by up to 40% (depending on the model).

The new models from series GLWH 0152 BD2 to GLWH 1204 BD2 offer a reversible circulation system, which enables simple switchover between cooling and heating operation by the use of a 4-way valve. With the predecessor models, moving from one mode of operation to the other was necessary hydraulically.

The small chiller versions with heat pump and 2 scroll compressors in 1 refrigeration circulation system offer refrigeration capacity from 43 to 186 kW, and provide heat output from 50 to 215 kW. The large models have 4 scroll compressors in 2 refrigeration circulation systems, and deliver 173 to 371 kW of cooling, and 202 to 428 kW of heat, depending on model. The condenser operates at cooling-water outlet temperatures up to 52°C.

Overall, the new series includes 19 different model sizes, which allows precise matching to the respective case of application. If required, integrated pump modules are also available.