Inspection And Service - Worcester GREENSTAR HEATSLAVE 12/18 Instruction Manual

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INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE 12/18-18/25-25/32
6 720 802 432 issue A 04/2012
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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:
4Carry out a pre-service check and note any
operational faults:
B
4Pre-Service Check:
14Lift the top panel (A) upwards to disengage
the ball stud connections (B) and remove.
24 Pull base of front panel (C) away from the
3
boiler to disengage ball stud connectors (D).
K
4 Lift front panel (C) upwards off the
supporting ledge (E) and store safely away
from the working area.
34Remove securing screws (F) from each
side of control box (G).
4Pull the control box all the way
J
forward ( H ).
4 Swivel the box up ( J ).
4 Lower the control box down to secure in
the service position ( K ).
Operate the appliance and system and note
any faults which may need to be corrected
during the service.
4Switch off and electrically isolate the
boiler.
6
44Depress locking ears and unplug burner
lead (L) from control box (G).
54Release the expansion vessel (M) from the
support bracket (N) and remove taking care
not to kink or strain the flexible hose or snag
the thermostat capillaries.
4Stand the expansion vessel (M) on the floor
taking care not to kink or strain the flexible
hose.
64Loosen clip (O) to detach air duct.
74Unscrew burner retainers (P) to release
the burner combustion head (R).
7 4Lift 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:
4Check and clean the burner.
4Replace burner nozzle and flexible oil
hose/s.
4Check and clean the baffle retainers.
4Check and clean the baffles.
4Check and clean the heat exchangers
surfaces.
4Check the combustion chamber access
door insulation board.
4Check that the flue system is unobstructed
and clean as necessary.
4Clean or replace all oil filters.
4Check that the condensate system is not
obstructed, clean and refill the condensate
trap as necessary.
INSPECTION AND SERVICE
41