Valve Position Checks - Nibe HPAC S40 Installateurhandbuch

REVERSING VALVES
VALVE POSITIONS
The heating/cooling modes are controlled by four reversing valves, which, depending on the outdoor temperature and
need, switch between the different modes.
QN13
Heating
Passive cooling
Active cooling.
The above applies to powered systems.
The arrow and figure indicate in which position the valve is set.

VALVE POSITION CHECKS

3 1
1
3
There are signs at the sides of the valves where it can be
checked that the valve outlets point in the directions de-
scribed above.
Caution
When changing the heating/cooling mode, there
is a delay of approximately 60 seconds before the
valves change their positions.
22
QN14
QN15
QN13
lit
lit
not lit
1 3
3
1
QN16
A lit lamp indicates that
the valve is in its output
position, i.e.it is open in
the direction labelled 1.
QN15 QN14
lit lit
lit not lit
not lit not lit
QN16
lit
not lit
not lit
HPAC S40 | GB