Installation and Maintenance Manual

Maintenance
86 UV-SVN02C-EN
Note: The drain pan is installed at an angle to allow
drainage. For each end of the drain pan,
remember the position (top or bottom slot)
from which the fastener was removed.
4. When reinstalling, use the same steps in reverse order,
remembering the pitch of the drain pan.
Removal of the Fanboard and Coil
Cleaning
The unit ventilator fan board can be removed for service to
the blower motor and fan wheels. The fan board must also
be removed for easier access to the unit coils for cleaning
and maintenance. Utilize the following steps for proper
removal of the fanboard.
1. Turn off power to the unit and remove the front panel.
2. Remove the front air grille and filter
from the unit.
3. Pick wires out of the cable c
hase and tie them out of the
way (see Figure 59).
Note: The cable c
hase is part of the fanboard
assembly.
4. Disconnect motor wires.
5. Loosen the four bolts (two on each side of the
fanboar
d; see Figure 60).
6. For units with face and bypass options only: Before
removing the fanboard, the drain pan must be
removed (Figure 58, p. 86). After the drain pan has
been removed, proceed to Step 7.
7. Remove the bolts and fanboard.
8. When reinstalling, use the same steps in
reverse order.
Lubrication: Fan Shaft
One fan shaft bearing is mounted on the right end of the
fan board. This sleeve-type bearing has an inner surface of
sintered bronze which allows oil to flow from the built-in
Figure 58. Removal of screws holding drain pan in
place.
Figure 59. Tie wires from the cable chase out of the
way
NOTICE:
Equipment Damage!
Support the fanboard before removing the bolts that
support it to prevent it from falling out of the unit,
which could cause equipment damage.
Figure 60. Loosen the two bolts (four total) at either
end of the fanboard
UV-SVN02_-EN.book Page 86 Thursday, January 24, 2013 4:48 PM