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6.6
CONDENSER FAN MOTOR (AIR-
COOLED ONLY)
The fan motor is connected to a toggle switch located
behind the left side panel. The switch is connected to a
buck-boost transformer. The switch must be set to the
correct position based on input voltage.
The buck-boost transformer is connected to an overload
protector. This protects against the switch being in the
wrong position, a faulty switch and/or wiring issues.
A. CHECK VOLTAGE
1.
With the machine connected to power and the
main power on, press the right arrow, SET, then the
SEL button to access the technician level on the
control.
2.
Go to the Performance screen. Refer to Section 4
for details.
3.
If the Input Voltage listed on the Performance
screen is 215VAC or less, set the toggle switch to
208. If the voltage is above 215VAC, set the toggle
switch to the 230.
NOTE
The voltage reading must be taken to ensure the
fan motor works properly.
B. FAN MOTOR REPLACEMENT
1.
Disconnect machine from electrical supply before
removing any panels for servicing.
2.
Remove a side panel and the header panel.
3.
Trace and disconnect the brown and blue wires on
the fan motor.
4.
Remove the fan guard and the fan motor assembly.
5.
Remove the torx screws from the fan guard.
6.
Remove the bolts holding the fan guard to the
condenser shroud.
C. FAN MOTOR INSTALLATION
1.
Rotate the fan motor so the mounting holes are
lined up with the holes in the fan guard.
2.
Install the fan to the fan guard using the torx
screws.
3.
Move the fan and fan guard into place.
4.
Install the fan guard to the shroud with the four
bolts.
5.
Wire the fan motor according to the wiring diagram.
The buck-boost transformer must be connected if
necessary (see above regarding checking voltage).
WARNING
Hazardous voltage
Make sure the machine is off when disassembling
for servicing. The machine must be disconnected
from electrical supply before removing any access
panel. Failure to disconnect power before servicing
could result in death or serious injury.
Figure 6-5 Buck-Boost Transformer Toggle Switch
Figure 6-4 Condenser
