Inspection And Service - Worcester GREENSTAR UTILITY 18/25 Instruction Manual

8 716 106 256 C 03.10 30/3/10
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR DANESMOOR UTILITY 18/25
8 716 106 256C (03/2010)
14:24 Page 37

INSPECTION AND SERVICE

CAUTION: ISOLATE THE WATER,
ELECTRICITY AND OIL MAINS SUPPLIES
BEFORE STARTING ANY WORK AND
OBSERVE ALL RELEVANT SAFETY
PRECAUTIONS.
Routine servicing:
To maintain efficient boiler operation, the
following should be carried out at least once
a year:
Carry out a pre-service check and note any
operational faults:
Pre-Service Check:
1 Lift the top panel (A) upwards to disengage
the ball stud connections (B) and remove.
2 Pull base of front panel (E) away from the
boiler to disengage ball stud connectors (K).
Lift front panel (E) upwards off the
supporting ledge (D) and store safely away
from the working area.
3 Pull the top front panel (L) away from the
boiler to disengage the ball stud
connectors and remove.
Remove securing screws (C) from each
side of control box (G).
Slide control box (G) outwards to its full
extent.
Pivot control box (G) upwards and secure
in the service position as shown.
Operate the appliance and system and note
any faults which may need to be corrected
during the service.
Switch off and electrically isolate the
boiler.
4 Depress locking ears and unplug burner
lead (F) from control box (G).
5 RS flue only: loosen clip (J) to detach air
duct.
7 Unscrew burner retainers (H) to release
the burner combustion head (N).
Lift burner away, taking care not to over
strain the flexible oil hose/s or
connections.
See the following instructions for detail of
some of the service requirements listed
below:
Check and clean the burner.
Replace burner nozzle and flexible oil
hose/s.
Check and clean the baffle retainers.
Check and clean the baffles.
Check and clean the heat exchangers
surfaces.
Check the combustion chamber access
door insulation board.
Check that the flue system is unobstructed
and clean as necessary.
Clean or replace all oil filters.
Check that the condensate system is not
obstructed, clean and refill the condensate
trap as necessary.
INSPECTION AND SERVICE
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