Instruction manual
%CO
2
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
5
4
3
F
A - Bleed & pressure gauge port
B - Pressure adjustment
C - Vacuum gauge port
RIELLO
RDB OIL PUMP
C
B
A
D
2
D
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.
SC
SC
12/18 18/25
E
K
G
D
NOMINAL BOILER RATING AT NORMAL OPERATING TEMPERATURE
USING 28sec KEROSENE:
L
STARTING THE APPLIANCE
2 Fit a suitable pressure gauge to port (A)
on the oil pump.
Adjust the air shutter (L) and pump pressure
(B) as shown in the table opposite. The
burner should ignite following a pre-ignition
period of approx. 15 seconds.
If changing the burner output, check the
position of the air damper disc is correct to
the output as shown in the table below.
Boiler lockout indicator on:
If the burner fails to establish a normal firing
pattern or flame failure occurs the flame
monitoring photocell mounted in the burner
body will alert the burner control box to shut
the burner down and provide a safe lockout
state indicated by the illumination of the lock-
out indicator (E).
Wait 2 minutes then press the lockout
reset button (D) to initiate another start
sequence.
Repeat procedure until a flame is established.
3Start and run for 3 minutes then switch off.
Check for after-spurting from the nozzle,
indicated by oil saturation on the combustion
head (G).
If after-spurting occurs:
Release the burner retainer (F).
Remove the burner, combustion head (G).
and electrodes, hold the burner vertical
to unscrew the nozzle and fill the nozzle
holder with kerosene.
Refit nozzle, electrodes, combustion
head (G) and the burner.
Restart and run for 3 minute intervals until
after-spurting stops.
4Start and run for 20 minutes.
Remove sampling point plug (K) to check
the smoke reading is between 0-1. If the
smoke level is above 1, check the combustion
settings are correct and the oil nozzle is in
good condition.
Note: smoke readings may be inaccurate until
the smoke from burning organic binder in the
access door insulation has ceased.
Check the CO
2
levels and adjust the air
shutter (L) setting according to the table
opposite.
Check the flue gas temperature is close to
the values shown in the table.
If the flue gas temperature is too high and the
baffles are correctly fitted, then reduce the oil
pump pressure (B) 5-10p.s.i. to compensate
for nozzle variations.
Turn off the electrical supply.
Isolate the oil supply to the burner.
Remove the oil pressure gauge.
Refit the blanking plug (A).
Check and rectify any oil leaks.
5Switch on the oil supply.
Switch on the electrical supply.
Restart the boiler and run for 5 minutes.
Recheck the CO
2
levels and if required,
adjust the air shutter setting (L) to obtain
the correct CO
2
level.
Refit the sample point cap.
STARTING THE
APPLIANCE
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR DANESMOOR WALL MOUNTED OIL 12/18-18/25
8 718 681 134a (08.08)
39
COMMISSIONING