Nibe PCM 40 Installateurhandbuch Seite 16

Heating/cooling operation
The circulation pump (GP13) only runs in cooling mode.
The factory setting for the circulation pump speed is
MAX. 0
10
During heating operation (default) the mixing and re-
versing valves are closed as illustrated.
0
10
Shuntventil
Mixing valve
Shuntventil
(QN18)
When the reversing valve is open as illustrated below
cooling is activated. The shunt opens and closes depend-
ing on temperature.
0
10
0
10
Mixing valve
Shuntventil
(QN18)
When cooling has been activated, heating operation is
blocked for two hours (factory setting) to prevent self-
Shuntventil
oscillation between cooling and heating. If necessary,
the setting can be changed in menu 1.9.5.
16
Värmeläge
Värmeläge
0
0
Växelventil
Reversing valve
Växelventil
(QN12)
Kylläge
0
Kylläge
0
Reversing valve
Växelventil
(QN12)
Växelventil
10
10
10
10
PCM 40/42 | GB