A
B
C
A - Bleed & pressure gauge port
B - Pressure adjustment
C - Vacuum gauge port
DANFOSS
BFP 11 L3 OIL PUMP
A
B
C
SUNTEC
AS47C OIL PUMP
%CO
2
NOMINAL BOILER RATING AT NORMAL OPERATING TEMPERATURE
USING 28sec KEROSENE:
NOZZLE
OIL
PUMP
PRESSURE
(p.s.i.)
FUEL
FLOW RATE
Kg/h
l/h
AIR
DAMPER
DISC
APPROX.
AIR
SETTING
APPLIANCE
INPUT
OUTPUT
kW
Btu/hr
kW
Btu/hr
RIELLO
RDB OIL PUMP
C
B
A
18/25 - Riello R DB 2.2 Burner:
0.50 60
°
ES
0.65 60
°
ES
0.75 60
°
ES
12 5
12 0
11 5
1 .56
1 .86
2.17
1 .98
2.36
2.75
75
78
84
11.5
12 .0
12 .5
2.0
3.0
4.5
63300
75100
8 9700
18
21 .5
25
61400
73400
85300
18. 6
22.2
25.8
18/25 - Bentone Sterling 50 Burner:
0.50 80
°
EH
0.55 80
°
EH
0.65 80
°
EH
13 0
14 5
15 0
1.56
1.86
2.17
1.98
2.36
2.75
72
79
82
11.5
12 .0
12 .5
4.25
6.0
8.0
63300
7510 0
87900
18
21.5
25
61400
73400
85300
18 .6
22.2
25.8
N/A
N/A
N/A
18-25kW
18-25kW
18-25kW
5
K
K
K
K
I
APPROX
FLUE
GAS
TEMP.
( °C )
STARTING THE APPLIANCE
2
Fit a suitable pressure gauge to port (A) on
the oil pump.
Adjust the air shutter (K) and pump pressure
(B) as shown in the table below. 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.
NOTE:
The MO535 control box has an 11
second delay before the start of the
pre-ignition.
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/reset button (E).
Wait 2 minutes then press the lockout
indicator reset button (E) to initiate another
start sequence.
Repeat procedure until a flame is established.
3
Start and run for 3 minutes then switch off.
Check for after-spurting from the nozzle,
indicated by oil saturation on the combustion
head (F).
If after-spurting occurs:
Release the burner retainer (G).
Remove the burner, combustion head (F).
and electrodes, hold the burner vertical
to unscrew the nozzle (H) and fill the nozzle
holder ( I ) with kerosene.
Refit nozzle (H), electrodes, combustion
head (F) and the burner.
Restart and run for 3 minute intervals until
after-spurting stops.
4
Start and run for 20 minutes.
Remove sampling point plug ( J ) 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 (K) 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.
5
Switch 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 (K) to obtain
the correct CO
2
level.
Repeat the fine tuning procedure (5) if required.
Refit the sample point cap (J)(hand tighten
only, do not over tighten).
STARTING THE APPLIANCE
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR DANESMOOR UTILITY 18/25
8 716 106 256C (03/2010)
33
C
O
M
M
ISS
IO
N
IN
G
8 716 106 256 C 03.10 30/3/10 14:24 Page 33
