Worcester GREENSTAR HEATSLAVE 12/18 Instruction Manual page 42

D
RIELLO
RDB 1 & 2.2
12/18
18/25
25/32
RIELLO
RDB OIL PUMP
A
A - Retaining screws - cover
B - Cover - oil pump
42
INSPECTION AND SERVICE
C
P H D
F
2.5mm
Electrode gap 4mm
B
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE 12/18-18/25-25/32
B
A
E
5mm
K
INSPECTION AND SERVICE
4Removal of control box:
NOTE: The control box does not need to be
removed for servicing.
4 Pull the control box slider fully out.
14 Lift the box slightly to align the pivot point
with the keyhole.
24 Push the lefthand side of the box in slightly
to release.
34 Lift the lefthand side up.
44 Pull away from the righthand side pivot
point.
4 Clean the Burner:
4Remove the air intake cover (H) and clear
any debris from the air intake and air damper.
4Disassemble the burner to allow access to
the fan impeller.
4Check the condition of the gaskets between
these parts and replace if necessary.
4Note the position of the air damper
adjustment and check the air damper moves
freely.
4Clean both sides of the fan impeller and
remove any debris from the burner housing.
4Check that the impeller rotates freely.
4 Reassemble the components.
4Remove the combustion head (K) and
thoroughly clean any deposits.
4Remove the nozzle (E).
4Check the nozzle holder is clear of any debris
and clean if necessary.
4Fit a new oil atomising nozzle (E).
DO NOT dismantle the nozzle and DO NOT
clean the nozzle tip.
4Check the electrodes (F) and reset if
necessary as shown opposite.
4Refit the combustion head. Check that the
nozzle (E) lies centrally in the combustion
head and the head settings are as shown.
Ensure that the photo cell is lined up with the
sight hole.
4 Withdraw the photocell (P) from its housing
and wipe clean.
4 Remove the oil pump internal filter, clean in
kerosene and reassemble.
The internal filter is accessed by removing
screws (A) and the oil pump cover (B).
IMPORTANT
4Replace the standard flexible oil hose/s
at every annual service to prevent the
possibility of oil leakage.
4Reassemble the burner components.
4Check the sponge O-ring seal located
around the combustion head and replace if
necessary.
This seal must be in good condition since
failure will cause flue gases to escape into
the room.
6 720 802 432 issue A 04/2012