GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
163
12. Analyzing of drive control system faults
When the unit fails and halts, first check the two-digit nixie tube of the control board and fault table to find
out the specific fault. Then check and solve the fault according to the following methods.
(1) Communication failure between the compressor's drive board and control board (outdoor fault C2)
C2
Check if the control board and
compressor's drive board are powered.
Check if the control board and compressor's
drive board are well connected to each other
using the communication cable.
Check the dial switch of the
compressor's drive board is
correct.
Is the fault solved?
The compressor's drive board is
faulty and needs to be replaced.
Complete
Yes
Yes
Yes
No
No
If the LED of the control board is off, replace the
control board; if the LED of the drive board is off,
replace the drive board.
If not, reconnect them. If the cable is not
conducting, replace the cable.
No
Adjust the drive board's dial .switch as required.
No
Содержание GMV-224WM/B-X
Страница 1: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL T1 R410A 50 60Hz GC201508...
Страница 6: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 3 2 Piping Diagram of GMV 400WM B X and GMV 450WM B X...
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Страница 45: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 42 Part 5 Piping Connection Schematic Diagram of Piping Connection...
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Страница 156: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 153 low press ure air pipe...
Страница 158: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 155 2 Low exhaust temperature protection E2...
Страница 159: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 156 3 System high pressure protection E1 4 System low pressure protection E3...
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Страница 161: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 158 5 System refrigerant lacking protection U4...
Страница 162: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 159 6 System high pressure ratio protection J8...
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Страница 227: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 224 3 Model GMV 400WM B X GMV 450WM B X Exploded View...
Страница 230: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 227 4 Model GMV 504WM B X GMV 560WM B X GMV 615WM B X Exploded View...
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Страница 248: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 245 Click Finish...
Страница 250: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 247 Check I accept the terms in the License Agreement and click Next...
Страница 254: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 251 Click Next Installing...
Страница 255: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 252 Click Close...
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Страница 300: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 297 11 In the displayed window select I Agree and click Next to continue...
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Страница 315: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 312 After detection detected devices will be listed in the Net tree...
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Страница 352: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 349 11 In the displayed window select I Agree and click Next to continue...
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