Bentone MVD 210 - Fan Wheel

40
Bentone BFG 1
!
When servicing/replacing components which aect the
combustion, gas side leakage analysis and check should be
performed on the system.
172 625 18-2
11.6 Fan wheel
11.6.1 Inspection
1. Disconnect the main power and shut off the fuel supply.
2. Loosen the screw assembling the front piece of the burner and the
fan housing, but not more than that the fan housing can be removed
from the front piece. Disconnect the cables to the multiblock.
3. Remove the fan housing from the front piece and pull it backwards
until the cables to the ignition electrode and ionisation electrode can
be loosened.
4. Visually check the fan wheel. Carefully rotate the fan wheel with your
ngers or a tool.
5. If possible, carefully clean the fan wheel if it is not heavily soiled.
6. If thorough cleaning is deemed necessary, proceed to Fan wheel
Service. If cleaning is not necessary, assemble the burner.
7. Switch on the main power and open the fuel supply.
8. Start burner and check/adjust combustion.
11.6.2 Service
9. Disconnect the main power and shut off the fuel supply.
10. Loosen the screw assembling the front piece of the burner and the
fan housing, but not more than that the fan housing can be removed
from the front piece. Disconnect the cables to the multiblock.
11. Remove the fan housing from the front piece and pull it backwards
until the cables to the ignition electrode and ionisation electrode can
be loosened.
12. Loosen the screws (I) holding the air intake, 3 pcs.
13. Remove the air intake.
14. Loosen the screw (J) holding the inlet cone and note the inlet cone
position.
15. Remove the inlet cone from the fan housing.
16. Clean the fan wheel. If necessary, disconnect and remove the fan
wheel for more thorough cleaning of the fan and fan housing.
17. Install the fan wheel and tighten the screw. The fan wheel should be
installed in the bottom position against the motor shaft.
18. Assemble the burner. Be careful when installing the inlet cone – install it
in the same position as it was before being removed.
19. Fit the O-ring in the groove between the fan housing and inlet cone.
Ensure that it is properly located in the groove and is not damaged
when the air intake is tted.
20. Switch on the main power and open the fuel supply.
21. Start burner and check/adjust combustion.
I
J
!
Before obtaining access to electrical and fuel line components
all supply circuits must be disconnected.