Reznor UDSBD-4E, Установка, пусконаладка, обслуживание

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1801UDSBD-4E,--EN, Pag. 24/35
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 replacement 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.
VENTER MOTOR & WHEEL
Venter wheel position on shaft
Figure 18a
UDSBD-4E mod. 015 - 020
(Rotation clockwise from motor shaft end)
Motor
cooling fan
Venter motor
plate
Venter
wheel
Motor
mounting
bracket
8 mm
UDSBD-4E mod. 025 - 030
(Rotation clockwise from motor shaft end)
Figure 18b
Venter
wheel
Venter motor
plate
Motor cooling
fan
Motor
mounting
bracket
8 mm
UDSBD-4E mod. 035 - 064
(Rotation counter clockwise from motor shaft end)
Figure 18c
Venter motor
plate
Venter
wheel
Motor cooling
fan
Motor
mounting
bracket
8 mm
20