Gree U-Match 6 Series

GREE U-Match 6 SERIES UNIT SERVICE MANUAL
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Filtering Board:
No. Printing Interface No. Printing Interface
1 X1 Power input live wire1 terminal 6 X5 Power output live wire1 terminal
2 X2 Power input live wire2 terminal 7 X6 Power output live wire2 terminal
3 X3 Power input live wire3 terminal 8 X7 Power output live wire3 terminal
4 X4 Power input neutral wire terminal 9 X8 Power output neutral wire terminal
5 E Filtering board grounding hole 10 X9 Filtering board ground wire terminal
3.2.2 IPM, PFC Testing Method
3.2.2.1Method of Testing IPM Module
(1) Preparation before test: prepare a universal meter and turn to its diode option, and then remove
the wires U, V, W of the compressor after it is powered off for one minute.
(2) Testing Steps
(3) Step 1: put the black probe on the place P and the red one on the wiring terminal U, V, W
respectively as shown in the following figure to measure the voltage between UP, VP and WP.
(4) Step 2: put the red probe on the place N and the black one on the wiring terminal U, V, W
respectively as shown in the following figure to measure the voltage between NU, NV and NW.
(5)
If the measured voltages between UP, VP, WP, NU, NV, NV are all among 0.3V-0.7V, then it