Replacing Heater On Nibe F750 - Nibe F750 Service Instructions - Replacing Heater

Replacing heater on NIBE F750

NOTE
Electrical installation and service must be carried
out under the supervision of a qualified electri-
cian. Cut the current with the circuit breaker
before carrying out any servicing. Electrical in-
stallation and wiring must be carried out in ac-
cordance with the stipulations in force.
Remove the packaging from the new unit before starting
to dismantle the existing unit.
Preparations, existing unit
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2
L E
K
1. Remove the upper panel by pulling it straight out.
2. Remove the screws from the lower edge of the front
panel.
3. Lift the panel out at the bottom edge and up.
4. Pull the panel towards yourself.
Emptying the hot water heater
The water heater should be drained through the safety
valve (FL1).
1. Disconnect the overflow pipe from the safety valve
(FL1) and connect a hose to a draining pump instead.
If a draining pump is not available, the water can be
released into the overflow cup (WM1).
2. Open the safety valve (FL1).
3. Open a hot water tap to let air into the system. If this
is not sufficient, detach the pipe connection (XL4)
on the hot water side and ensure that air is entering.
4. Disconnect the heat pump from the installation.
NOTE
There may be some hot water when draining
the water heater. There is a risk of scalding.
NIBE F750 | GB
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4
L E
K
Removing the covers
1. Remove the screws from the upper and lower edges.
2. Twist the cover slightly outward.
3. Move the hatch backwards and slightly to the side.
4. Pull the cover to one side.
5. Pull the hatch forwards.
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