Technical data

0803UDSA-2GBEN, Pag. 29/36
20. Venter motor
& wheel
Figure 18 - Fan blade position
on the motor shaft
3. Remove the fan assembly (fan guard, motor and fan blade).
4. Disassemble and replace parts as needed, then reassemble.
Be sure the fan blade is in the proper position on the shaft; refer to the illustra-
tion and table in figure 18.
ve ntilato r-
wiel
ventilator-
mo tor
ve ntilato r-
wiel
ventilator-
mo tor
binnenmaat
Fan
motor
Fan blade
Position the assembly on the heater and attach the fan guard.
Rotate the fan blade by hand to check for adequate clearance. If adjustment is
required, loosen the mounting screws, reposition the fan guard, and tighten the
screws. Rotate the fan blade and recheck for adequate clearance. Repeat this
procedure until the assembly is positioned properly.
5. Reconnect the fan motor wires according to the wiring diagram and close the
access door.
6. Restore power to the heater and turn on the gas. Light, following the instructions
on the lighting instruction plate. Check for proper operation.
Remove dirt and grease from the motor casing, the venter housing, and the venter
wheel. Venter motor bearings are permanently lubricated.
Follow these instructions for replacement of the venter motor and wheel assembly.
Keep all hardware removed to be used in reassembling and installing the replace-
ment parts.
1. Turn off the gas and disconnect the electric power.
2. Open the control compartment access door.
3. Disconnect the three venter motor wires at the control relay and ground screw
(located on the control panel).
4. Holding the motor, remove the screws that attach the motor plate to the venter
housing. Remove the motor and wheel assembly from the heater.
5. Reassemble with the replacement venter motor and wheel assembly.
6. Follow the wiring diagram to properly connect the wires.
7. Restore power to the heater and turn on the gas. Light, following the instructions
on the lighting instruction plate. Check for proper operation. Replace the access
door.
Table 9 : Dimensions A
Size 008 011 015 020 025 030 035 043 050 055 064 073 085 100
mm 29 23 50 49 83 80 80 87 87 91 95 89 86 89