Instruction manual
Adjust position of air damper discs to suit
burner output (see chart below), located as
above. Access by removing the two star
screws (SC) to release the air inlet manifold.
12/18
18/25
%CO
2
NOMINAL BOILER RATING AT NORMAL OPERATING TEMPERATURE
USING 28sec KEROSENE:
NOZZLE
Boiler 12/18 RDB 1
OIL PUMP
PRESSURE
(p.s.i.)
FUEL
FLOW RATE
Kg/h l/h
APPROX.
FLUE GAS
TEMP °C
APPROX.
AIR
SETTING
INPUT OUTPUT
kW kW
0.40 60°ES
0.45 60°ES
0.50 6 0°ES
100
110
120
1.06
1.30
1.55
1.34
1.65
1.96
63
69
71
12.0
12.0
12.5
2.25
2.5
4.25
12.4
15.2
18.1
12
15-18
12.7
15.6
Boiler 18/25 RDB 2.2
0.60 80°ES
*0.75 80°ES
135
125
105
1.55
1.86
2.16
1.95
2.35
2.73
74
78
85
11.0
11.5
11.5
1.5
2.25
4.0
18.0
21.7
25.2
21.5-25
21.5-25
18.5
22.4
26.0
AIR
DAMPER
DISC
SETTING
BURNER
HEAD
(APPLIANCE)
(APPLIANCE)
18.6
15-18
21.5-25
LD 2X SH 12/18
0.50 8 0°ES
LD 2X SH 12/18
LD 2X SH 12/18
LD 25X 4HBP
LD 25X 4HBP
LD 25X 4HBP
REFITTING COMPONENTS
1 The burner is supplied set to the mid range
output, if a different output is required then
the burner setup will need to be changed.
Remove the air intake manifold (A) by
undoing the two SC securing screws.
For the lowest burner output the air damper
disc setting will need to be changed as
shown opposite.
For CF flues at 25kW output
Remove the fan housing (B) by undoing
the four securing screws.
Fit the plastic air guide (C) using the
screws supplied (D).
Reassemble the burner in reverse order.
For any output change the nozzle will need
to be changed as given in the chart below.
Connect the flexible oil hoses onto the
fittings on the boiler.
WARNING: Ensure the oil pipe flow/return
connections are correct or serious
pump/deaerator damage could occur.
Check that the blast tube gasket is in good
condition then fit the burner onto the
combustion chamber door. If there is a wall
or cupboard directly to the right hand side
of the boiler then the burner has to be
rotated into the mounting from underneath
the boiler (E). Push the burner firmly onto
the door and secure in place with the
retaining nut (F). Tighten sufficiently to seal
but do not overtighten the nut.
Reconnect the flexible air hose to the air
inlet casing (C).
Plug the burner lead into the control box.
*For CF flues at 25kW a plastic air guide
must be fitted.
1
A
C
E
B
F
G
REFITTING
COMPONENTS
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR DANESMOOR WALL MOUNTED OIL 12/18-18/25
8 718 681 134a (08.08)
28
INSTALLATION
D