OIL BURNER & PUMP
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE EXTERNAL 12/18-18/25-25/32
8 716 113 389b (09/07)
25
IN
ST
AL
LA
TI
O
N
CAUTION: ISOLATE THE OIL & WATER
MAINS SUPPLY BEFORE STARTING ANY
W O R K AN D O B S E R VE ALL R E LE VANT
SAFETY PRECAUTIONS.
OIL BURNER:
1
Check the nozzle (A) and electrode (B)
settings are correct for the relevant burner
as shown opposite.
Ensure nozzle (A) is aligned centrally within
the combustion head (C).
Inspect for any visible defects.
IMPORTANT: Whenever replacing the
combustion head, ensure that the photocell
is lined up with the sight hole.
OIL PUMP:
Connecting the oil pump for a single pipe
system:
The pump is factory set for single pipe
operation with the flexible oil hose fitted.
Check connections before use.
Converting the oil pump for a double pipe
system:
1
Check the inlet hose connection.
a) DANFOSS BFP 11 L3:
Remove pump front cover (A) ensuring a
suitable receptacle is used to catch any oil
residue.
Remove changeover screw (B).
Remove horseshoe washer (C).
Refit changeover screw (B).
Refit front cover (A).
Remove oil pump return plug (2).
b) SUNTEC AS47C:
Remove return port plug (2) and insert
grub screw (B).
c) RIELLO RDB:
Unscrew return plug (2).
Screw in by-pass screw (3).
2
Connect the flexible oil
return
hose
(not supplied) between the oil pump and
the return line connection, and tighten to
secure.
5mm
Electrode gap
2.5 - 3.0mm
7.5mm
B
A
1
C
1
2
B
1
2
B
C
A
5mm
a) DANFOSS BFP 11 L3 OIL PUMP
b) SUNTEC AS47C OIL PUMP
5mm
Electrode gap 4mm
B
A
1
C
5mm
c) RIELLO RDB OIL PUMP
1
2
3
25/32 kW
12/18 & 18/25 kW
OIL BURNER & PUMP
