- 12 -
Note: In the case of three-phase models, swapping two phases may cause the electric motors
to run in the reverse direction, which can lead to damage. For this reason, the unit has a built-
in protective device that breaks the circuit if the connection is not correct. If the red LED above
this safety device lights up,
you must swap the connections of two of the phase wires
.
Model
Voltage (V)
Fuse or
circuit
breaker (A)
Rated current (A)
Wire diameter mm
2
(with max. 15 m length)
NDE-08-DCP
220
–240
10
4.4
3*1.5mm2
NDE-10-DCP
220
–240
12
6.9
3*1.5mm2
NDE-11-DCP
220
–240
15
8.5
3*2.5mm2
NDE-14-DCP
220
–240
20
11.7
3*2.5mm2
NDE-17-DCP
220
–240
22
16.2
3*4mm2
NDE-20-DCP
220
–240
30
18.7
3*6mm2
NDE-24-DCP
220
–240
30
18.7
3*6mm2
3.8 Initial operation
Note: In order to heat the water in the pool (or hot tub), the filter pump must be running
to cause the water to circulate through the heat pump. The heat pump will not start up
if the water is not circulating.
After all connections have been made and checked, carry out the following procedure:
1. Switch on the filter pump. Check for leaks and verify that water is flowing from and to the
swimming pool.
2. Connect power to the heat pump and press the On/Off button
on the electronic control
panel. The unit will start up after the time delay expires (see below).
3. After a few minutes, check whether the air blowing out of the unit is cooler.
4. When you turn off the filter pump , the unit should also turn off automatically, if not adjust
the flow switch.
5. Allow the heat pump and the filter pump to run 24 hours a day until the desired water
temperature is reached. The heat pump will stop running at this point. After this, it will
