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3j. Electrical troubleshooting
Before starting systematic troubleshooting, check the following:
Proper voltage is present.
Electrical equipment used, is suitable for the compressor.
The wires are properly installed according to wiring diagram.
There is no transition between the live parts and ground.
Control of the transition to ground.
In order to check whether there is a transition between the conducting components and the chas-
sis, the insulation resistance is tested by using an ohmmeter or the second high-voltage equip-
ment. An ohmmeter can be used for a rough check. The Ohmmeters one clamp is placed on the com-
pressor’s ground terminal. The second clamp on the compressor shared leg (see sketch). Showing
ohmmeter a transition, the compressor is replaced.
Uses high voltage test systems with flammable refrigerants, ensure that the system is completely
drained of coolant, as this can cause sparks during the test.
Plug on the compressor
Shared leg
Ground terminal
Содержание SF SERIES
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