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 TM9-4120-423-14&P
1
Evaporator section electrical module assembly must be connected to an operable air conditioner
and remote control assembly.
2
208V, 3 phase, 400 Hz power, and power cable must be available.
3
Top evaporator cover must be removed. (See WP0026.)
WARNING
AC power tests must be conducted with the power on. Exercise extreme caution.
4
Connect power to air conditioner.
5
Using multimeter, check voltage across terminals 2 and 5. Voltage should be 197 to 229 Vac. If
voltage is low or there is no voltage, check for loose or broken connections and absence of
power.
6
Using multimeter, check voltage across terminals 7 and 8. Voltage should be 27 to 33 Vac. If
voltage is low or there is no voltage, transformer should be changed.
7
Remove power to air conditioner.
8
Check varistor for evidence of overheating. Replace if discolored or damaged.
END OF TASK
0034 00-4
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