EU heat pumps
8
3.5 Typical setup
Note – This setup is just an example
3.6 Adjusting the by-pass
Optimum heat pump operation is reached when the refrigerant gas reaches a pressure of 30 +/- 2 bar.
This pressure can be read from the pressure gauge located next to the control panel of the heat pump. The
pressure depends on the ambient temperature and the water temperature and is controlled by the heat pump.
Note – The absence of a by-pass or performing an inadequate by-pass adjustment may cause the heat
pump to function less well or may even damage it, which will invalidate the warranty.
Uit
In
Heat pump
F
R
O
M
P
O
O
L
T
O
P
O
O
L
Adjust the by-pass as follows:
•
open the 3 valves completely
•
slightly close valve 1 until
water pressure has increased
with approximately 100 to
200 grams (see also 3.8)
•
close valve 3 about halfway to
adjust the pressure of the
refrigerant gas in the unit.
