Nibe F1145 Installer Manual page 56

5 and 8 kW
GP2
GP1
QM1
10, 12, 15 and 17 kW
GP2
GP1
QM1
56 Chapter 9 | Service
QM2
FD1-BT30
QM34
QM31
QM2
Draining the water heater (if docked)
The siphon principle is used to empty the hot water
heater. This can be done either via the drain valve on the
incoming cold water pipe or by inserting a hose into the
cold water connection.
Cleaning the water heater (if docked)
To clean the water heater, remove the upper panel and
the insulation. Then open the flange for easy access.
Draining the climate system
In order to carry out service on the climate system, it may
be easier to drain the system first. This can be done in
different ways depending on what needs doing:
NOTE
There may be some hot water when draining
the heating medium side/climate system. There
is a risk of scalding.
Draining the heating medium side in the cooling
module
If, for example, the heating medium pump requires re-
placing or the cooling module requires servicing, drain
the heating medium side as follows:
1. Close the shut-off valves to heating medium side
(QM31) and (QM32).
XL1
XL9
XL6 XL7
F1145
XL2
SF1
QM32
QM33
NIBE F1145