- 31 -
9.
Remove the air chamber cover (7) together with the frame (8), the T-piece (9), the drive shaft (14) and
the rotating partition shaft (15). If necessary remove the locking bolt of the T-piece.
10. Lubricate the bearings of the combustion chamber (10) at several points along the entire circumference
by applying grease between the race and the cage of the bearings. Use solid lubricant (i.e. Towot, LT
43).
11. Place the shaft (14) into the housing (18) of the front burner cover. The latch (12) must be positioned
between the cogs of the wheel (13) as shown in the detail.
12. Position the shaft (15) into the aperture of the bearing plate. Set the clogs as shown. This is setting for
closing the air partition which means minimum air flow.
13. Align the partition of the air chamber (7) together with the T-piece (9) and the frame (8). The spigots in
the lip of the partition must correctly align with the holes; T-piece must be placed into the panel aperture.
Replace the frame (8); ensure its spigots are also correctly located in the holes. If necessary tighten the
T-piece locking bolt (2). The end of the drive shaft (14) must also be correctly located into the hole (17),
while the partition rotating shaft (15) into the hole (16).
14. Tighten the bolts (6).
15. Attach the flange with the drives (3). During this step place the spark plug (5) into the housing so it is
properly seated. The aperture for the drive shaft (11) must be aligned with the position of the drive shaft
itself
– the shaft can be rotated by turning the pipe (1) in the direction marked "Z". The temperature
sensor (13) must be placed in the hollow which is positioned in the fuel supply pipe. Tighten the screws
(4).
16. Replace the cover (1).
17. Tighten the screws (2).
18. Close the boiler door.
19. Connect the disconnected cables.
20. The burner is ready for further operation.
9.5 Replacing the ignition coil
The ignition coil must be replaced only by a trained service technician or a person with appropriate electrical
certification (SEP up to 1 kV). To replace the ignition coil follow these instructions
– see Fig 16:
1.
Disconnect the power supply.
2.
Loosen the screws (1) that hold the cover (2) - 2 pcs.
3.
Remove the burner cover (2).
4.
Disconnect the spark plug from the terminals Z2 and Z4.
5.
Remove the end cap (4) from the ignition tube (5).
6.
Remove the spark plug (6) from the ignition tube (5).
7.
Place new spark plug (6) back into the ignition tube (5). Ensure it is entered into the tube along its
grooves (5). The sparks plug should protrude from the ignition tube by approx.20 mm (5).
8.
Replace the end cap (4) on the ignition tube (5) and secure the catches (2 pcs) which are positioned on
the edge of the ignition tube (5).
9.
Connect the spark plug to the terminal blocks (3).
10. Replace the cover (2).
11. Tighten the screws (1).
12. Connect the disconnected cables.
13. The burner is ready for further operation.
Summary of Contents for K14
Page 1: ...BOILER OPERATION AND INSTALLATION GUIDE BENEKOV K14 BENEKOV K20 BENEKOV K25 ...
Page 9: ... 9 Fig 3 BENEKOV K14 boiler basic dimensions ...
Page 10: ... 10 Fig 4 BENEKOV K20 and K25 boiler dimensions ...
Page 17: ... 17 Fig 7 Position of the K14 boiler in a boiler room ...
Page 33: ... 33 Fig 17 Diagram of electrical connection of XS20 burner of the K14 boiler ...
Page 34: ... 34 Fig 18 Diagram of electrical connection of XS26 burner of the K20 and K25 boilers ...