Inspection And Service - Worcester Greenstar Heatslave 12/18 Instruction Manual

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INSPECTION AND SERVICE

Page 38
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INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE 12/18-18/25-25/32
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:
B
1 Lift the top panel (A) upwards to disengage
the ball stud connections (B) and remove.
2 Pull base of front panel (P) away from the
boiler to disengage ball stud connectors (N).
Lift front panel (P) upwards off the
supporting ledge (M) and store safely away
from the working area.
3 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 (L) from control box (G).
N
5 Release the expansion vessel (D) from the
support bracket (E) and remove taking care
not to kink or strain the flexible hose or snag
6
the thermostat capillaries.
Stand the expansion vessel (D) on the floor
taking care not to kink or strain the flexible
hose.
6 Loosen clip (J) to detach air duct.
7 Unscrew burner retainers (H) to release
the burner combustion head (K).
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
7
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.
8 716 106 252f (03/2010)