Instruction manual

INSPECTION AND SERVICE
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR CAMRAY EXTERNAL &
EXTERNAL SYSTEM 12/18-18/25-25/32
8 716 115 667a (05.2009)
42
SERVICING
& SPARES
INSPECTION AND SERVICE
CAUTION: ISOLATE THE WATER,
ELECTRICITY AND OIL MAINS SUPPLIES
BEFORE STARTING ANY WORK AND
OBSERVE ALL RELEVANT SAFETY
PRECAUTIONS.
DO NOT USE PRESSURE WASHERS OR
STEAM CLEANERS ON THIS APPLIANCE
OR ITS CABINET.
WARNING: EXTERNAL EQUIPMENT
OPERATED AT 230 VOLTS SHOULD NOT
BE SERVICED OR REPAIRED UNDER
ADVERSE WEATHER CONDITIONS
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Undo the screws at the base of the front
panel using the tool provided and pull the
panel out and down to remove.
Store safely away from the working area.
Operate the appliance and system and note
any faults which may need to be corrected
during the service.
1bSwitch into service mode at switch (A).
2 Depress locking ears and unplug burner
lead (B) from control box (C).
• An adapter lead is available to allow mains
voltage service aids to be operated from
the service connection. (Service lead Part
No. 8 716 113 483 0).
3Loosen clip ( D ) to detach air duct.
Undo the two scews securing the deflector
plate (E) and remove the plate (F).
Unscrew burner retainer nut (G) and gently
pull burner forward to remove from
combustion chamber door.
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.
Sealed systems and Camray External
System boilers: The PRV is a safety
device and must be checked for correct
operation.
The expansion vessel pressure must be
checked and adjusted if necesary.
1
2
3
1b
A
B
C
D
E
F
G
CAMRAY EXTERNAL REGULAR SHOWN