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14
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SERVICING
Control Configuration-
For use by qualified service personnel only
The adjustable control switches are located at the PCB.The inputs are only visible and accessible
with the electric control box removed from the unit.
side screws
side screws
PCB in the electric
control case
1 2 3
SW2
1 2
SW3
1 2 3 4 5 6 7 8
SW1
PCB
1 2 3
SW2
1 2
SW3
1 2 3 4 5 6 7 8
SW1
off
on
Before servicing, switch power off at the
service panel and lock the area to prevent
power from being switched on accidentally.
When the area cannot be locked securely
fasten a prominent warning device, such
as a tag to the service panel.
WARNING
NOTE:
We strongly recommend that any
servicing be performed by a qualified
individual.
For ease of service. the unit can be
removed from the case:
1. Remove the front case panel.
2. Unplug the power cord.
3. Raise the top duct by turning all four
case top duct adjusting screws
counterclockwise.
4.
Remove the case-to unit grounding
screws.
5. Slide the unit out o
f the case.
unit, multiple
