Worcester Greenstar Danesmoor Utility Regular ErP 12/18 Installation, Commissioning And Servicing Instruction Manual page 43

B
C
5mm
5mm
E
3.5 - 4.0mm
E
C
2.0 - 2.5mm
Electrode gap
Fig. 77 Burner removal
▶ The internal filter is accessed by removing screws (G) and the oil
pump cover (H), refer to figure 78.
▶ Replace the standard flexible oil line/s at every annual service to
prevent the possibility of leakage due to ageing.
▶ Reassemble the burner components.
▶ Check the O-ring seal located around the combustion head and
replace if necessary.
This seal must be in good condition, seal failure will
cause flue gases to escape into the room.
Greenstar Danesmoor Utility ErP and Utility System
F
D
B
E
C
6720808218-76.1Wo
ErP - 6 720 813 286 (2014/09)
RIELLO
RDB OIL PUMP
G
H
G - Retaining screws - cover
H - Cover - oil pump
Fig. 78 Pump detail
Combustion chamber - 18/25 Regular shown
▶ Release the M10 retaining nuts and washers (A) and remove baffle/
combustion chamber access door (B).
▶ Check the fibreglass rope seal on the baffle/combustion chamber
access door (B) and replace if necessary.
▶ Remove the one piece baffle set (C), clean and check the condition.
Replace if considered to be badly corroded/degraded.
▶ Thoroughly clean all of the heat exchanger surfaces using a suitable
brush and clear all loose debris from the combustion chamber.
▶ Check the condition of the baffle/combustion chamber access door
insulation. If the insulation is damaged the door assembly must be
replaced.
▶ Check the condition of the baffle/combustion chamber access door
seal.
▶ Refit the one piece baffle set (C) making sure it is seated correctly on
the 4 rests (D) and pushed into the correct position as shown in the
plan view opposite.
▶ Refit baffle/combustion chamber access door (B).
▶ Secure with nuts and washers (A) and tighten until the door is firmly
secured. Do not over tighten the nuts.
B
C
A
Fig. 79 Combustion chamber
Service and Spares
(on 12/18 model only)
Brass air deflection washer
Locating circlip
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6720808218-77.1Wo
43