Starting the appliance – Bosch 25/32kW User Manual
Page 33
STARTING THE APPLIANCE
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE EXTERNAL 12/18-18/25-25/32
8 716 113 389b (09/07)
32
C
O
MMI
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IN
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STARTING THE APPLIANCE
2
Remove plastic cover from the burner casing
(there is no plastic cover on the Riello burner).
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.
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
lockout indicator (E).
Wait 2 minutes then press the lockout
reset button (D) 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 retainers.
Remove the burner, combustion head (F).
and electrodes, hold the burner vertical
to unscrew the nozzle and fill the nozzle
holder with oil.
Refit nozzle, 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 (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.
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 (L) to obtain
the correct CO
2
level.
5
L
A
B
C
A - Bleed & pressure gauge port
B - Pressure adjustment
C - Vacuum gauge port
2
4
K
D
12/18 & 18/25
(under control box)
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
12/18 - Bentone Sterling 40 Burner:
OIL PUMP
PRESSURE
(p.s.i.)
FUEL
FLOW RATE
Kg/h
l/h
APPROX.
FLUE GAS
TEMP
°C
APPROX.
AIR
SETTING
APPLIANCE
INPUT
OUTPUT
kW
Btu/hr
kW
Btu/hr
0.35 80
°SR
0.45 80
°S
0.50 80
°ES
115
115
140
1.04
1.29
1.55
1.32
1.63
1.96
66
70
73
11.5
12.0
12.5
2.5
4.5
5.25
42300
52900
63500
12
15
18
40900
51200
61400
12.4
15.5
18.6
3
G
F
L
RIELLO
RDB OIL PUMP
C
B
A
25/32 - Riello RDB Burner:
0.75 60
°ES
0.75 60
°ES
0.85 60
°ES
105
140
150
2.15
2.45
2.75
2.72
3.1
3.48
78
80
83
11.5
12.0
12.5
3.0
4.0
5.0
87000
99300
111600
25
28.5
32
85300
97200
109200
25.5
29.1
32.7
18/25 - Bentone Sterling 50 Burner:
0.50 80
°EH
0.55 80
°EH
0.65 80
°EH
130
145
150
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
63500
75750
88000
18
21.5
25
61400
73400
85300
18.6
22.2
25.8
D
25/32
(on top of burner
control box)
E