Maintenance; Unscrew The Front Cover; Sight Glass - Bosch EHP 6-11 LW User And Installation Manual

Maintenance

Maintenance
Your heat pump requires a minimum of maintenance, however, we still
recommend some servicing to get optimal performance from your heat
pump. Check the following items a few times during the fi rst year. You
should then check them once or twice a year:

Sight glass

Expansion tank
Particle fi lter
Protective anode (only models with a stainless steel hot water cylinder)

Unscrew the front cover

Unscrew the front cover
On certain models you will need to open the front cover to access some
of the maintenance areas, e.g. the sight glass and particle fi lter. The front
cover is secured at the top by two screws.
This is how you remove the front cover from the heat pump:
1. Unscrew the two screws on the top. See the picture.
2. Tilt the front cover towards you.
3. Lift the front cover up to release the lower edge.
Sight glass
Sometimes when the heat pump has started you can see the fl uid in the
refrigerant circuit bubble for a few minutes in the sight glass. This is
completely normal. However, if it bubbles continuously you should contact
your dealer.
Sight glass
If the sight glass shows green this means there is no moisture in the
system. If it is yellow, there is moisture in the system. If this happens,
contact your dealer.
For reasons of safety the main power
supply must be disconnected before
working on the heat pump.
Only an accredited refrigeration
company is permitted to work on the
refrigerant circuit.
Remove the front cover by unscrewing the
screws on the top.
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Warning
LWM model