Cooling mode
Because of circuit reversal, heating is also pos-
sible. In heating mode, the components of the
refrigeration circuit are used to produce warm air
thus in the building can be heated.
The comfort zone in the illustration below shows
which values for temperature and humidity are
considered comfortable for people. This range
should ideally be met when heating or air-condi-
tioning buildings.
10 12 14 16 18 20 22 24 26 28 30
uncomfortably
humid
comfortable
still comfortable
uncomfortably
dry
Relative humidity in %
Room air temperature in °C
Fig. 13: Comfort zone
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