Table of Contents
Advertisement
14.6 Clean the Boiler
1. Remove the boiler top access door by releasing the M10 nuts
and check the fibreglass rope seal. Replace the seal if necessary.
2. Remove the burner mounting flange by releasing the three
M10 nuts and check the fibre glass gasket, it is imperative that
this seal is in good condition. Replace the seal if necessary
(32/50 and 50/70 models only).
3. Remove and check the baffle retainer, where fitted (20/25,
26/32, 32/50 and 50/70 models). See Fig. 24.
4. Remove the baffles, clean and check their condition. Replace
any baffles considered to be badly corroded.
5. Remove and check the cap retainer, where fitted (32/50 and
50/70 models only). See Fig. 24d, 24e & 25.
6. Remove the cap (32/50 and 50/70 models only) and check
the 'rocksulate' gasket. Replace the seal if necessary.
7. Thoroughly clean all of the heat exchanger surfaces using a stiff
wire brush and vacuum clean all loose debris from the combustion
chamber. Take care not to damage the base insulation!
8. Remove and check the heat shield where fitted (20/25,
26/32, 32/50 and 50/70 models). (See Fig. 24).
9. Check the combustion chamber base insulation board and
replace if there is any sign of damage.
10. Check and clean the flue.
11. Replace the items in reverse order noting the baffle positions
shown in Fig. 24.
14.7 Fire Valve.
Check that a fire valve is fitted to the incoming oil line with the
body located outside the premises and the detection element
15. Short Parts List
Part
Burner for 12/14
B9A Combustion Head
Burner for 15/19
B9B combustion Head
Burner for 20/25
B11C Combustion Head
Burner for 26/32
Sterling 40 Combustion Head
Burner for 32/50
B20C Combustion Head
Burner for 50/70
B20B Break Plate
B20B Blast Tube
Burner control 1.
B9, B11 and B20
Sterling 40
Ignition Electrode
Motor B9
Motor B11 and B20
Motor Sterling 40
Oil Pump B9
Oil Pump (B11, B20 and Sterling 40)
Transformer
Mechanical Shut-Off Valve
Flexible Oil Line Kit
Burner 'O' Shaped Gasket
Control Thermostat
Automatic Reset High Limit Thermostat
Manual Reset High Limit Thermostat
Manufacturers Reference
Bentone B9A
PL 6/7/21.5/10-E x 78mm
Bentone B9B
PL 6/7/21.5/10 x 78mm
Bentone B11C
PL 10/4/24/10 x 78mm
Bentone Sterling 40
PL 6/7/21.5/10 x 78mm
Bentone B20C
PL10/8/10/6/19/10-E x 78mm
Bentone B20B
PL 21.5/10 (type K)
Type K x 94mm
Control Box
Satronic TF 832.3
Photocell
Satronic MZ770
Photocell
Satronic MZ770
Control Box Base
Satronic S01 S701
AEG or Simel 70 W
AEG (FHP) 90W
AEG (FHP) 90W
Danfoss BFP41L3
Danfoss BFP11L3
Danfoss EBI 052F0030 (excludes cable)
Worcester
Worcester
Siebe K36-P2312
Siebe LO7-P1022
Siebe LM7-P5075
located within the appliance case. A fire valve clip is provided
for this purpose as shown in Figs 2 & 3. Test the operation of the
fire valve to ensure that the mechanism operates and that the oil
supply is completely isolated.
NOTE: The fire sensing element must be located on the top face of
the burner surround box on RS balanced flue models, as shown
in Fig.3, to allow quick detection of a dangerous situation.
14.8 Recommission the Burner.
1. Connect the flexible oil supply hose to the isolating valve and
tighten sufficiently to form a good seal. Where a double pipe
system is being used connect the oil return flexible hose to
return pipe fitting.
2. With the sponge O-ring gasket around the burner blast tube
insert the burner into the housing tube. Push the burner firmly
forward to compress the gasket and tighten the two locking
screws, using a 5mm Allen key.
Note: It is important that a good seal is made between the
burner and the boiler to prevent re-emission of the flue gases
from the combustion chamber to the burner inlet, or the room in
the case of a CF/LLD appliance.
3. On the RS balanced flue model feed the electrical lead back
through the hole in the burner surround housing (in the reverse
order to that described in 11.2) and fit the grommet into the hole
ensuring a seal is made.
4. Reconnect the electrical lead plug into the control box.
5. Turn on the oil supply at the service cock.
6. Recommission the burner as described in Section 12.
26
Qty
Worcester Part No.
1
8 716 104 431 0
1
8 716 157 041 0
1
8 716 142 705 0
1
8 716 156 697 0
1
8 716 104 432 0
1
8 716 142 784 0
1
8 716 142 700 0
1
8 716 156 697 0
1
8 716 104 546 0
1
8 716 104 769 0
1
8 716 104 547 0
1
8 716 156 518 0
1
8 716 142 739 0
1
8 716 156 648 0
1
8 716 142 735 0
1
8 716 156 692 0
1
8 716 142 782 0
1
8 716 142 752 0
1
8 716 156 597 0
1
8 716 142 732 0
1
8 716 156 645 0
1
8 716 142 743 0
1
8 716 142 736 0
1
8 716 156 696 0
1
8 716 156 658 0
1
8 716 156 663 0
1
8 716 140 902 0
1
8 716 142 309 0
1
8 716 142 311 0
1
8 716 142 310 0
Hide quick links:
Advertisement
Table of Contents
