Worcester GREENSOURCE User Manual page 25

Particle fi lter
It is the particle fi lter (dirt fi lter) that ensures no particles or dirt enter the
heat pump. Over time the fi lter can become clogged and must be cleaned.
To clean the fi lter:
1. Shut down the heat pump using the ON/OFF button.
2. Close the valve and unscrew the sealing cap.
3. Loosen the circlip holding the screen in the valve. Use the supplied
circlip pliers.
4. Lift out the screen from the valve and wash clean with water.
5. Refit the screen, the circlip and sealing cap.
6. Open the valve and start the heat pump using the ON/OFF button.
Evaporator
If there is a coating (for example dust or dirt) on the surface of the evapora-
tor (coil fi ns), you should wipe it off. The fi ns are extremely sensitive. Never
wipe, e.g. with a cloth, directly on the delicate fi ns. Use protective gloves to
protect your hands from cuts.
This is what to do:
1. Shut down the heat pump using the ON/OFF button.
2. Unscrew the screws and remove the protective grille from the reverse
of the heat pump.
3. Spray a degreasing agent on the fins of the evaporator.
4. Rinse off the coating and degreasing agent with water. Do not expose
the fins to too high a water spray pressure as this can damage them.
When the evaporator is extremely dirty you can rinse the coil from
inside the inspection hatch. Any cleaning agent is collected in the
drainage hose.
Snow and ice
In some locations during periods of snow, snow can accumulate inside the
protective grille on the rear side. Remove the grille and carefully wash away
the snow without damaging the fi ns.
Also remove any snow or ice from the grille on top of the heat pump.
The pump is supplied with defrost functions which can be set by the
installer. In the event of any problems, these may need adjusting. Contact
your installer.
Circlip
Screen Sealing cap
The particle fi lter is installed on the
return pipe.
Greensource A/W heat pump
Clean the dirt from the coil fi ns using a
degreasing agent and a watering can with
25
Note
rose attachment.
Warning
During fan defrost, ice can detach
from the fan grille and be thrown at
high velocity. Do not stand too close
and do not look directly into the fan
during defrost.
Maintenance