GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
203
2. If the refrigerant is proved satisfactory, fill refrigerant of the combined amount of the rated amount
(specified on the nameplate) and the calculated refrigerant loss amount.
For a multi-modular unit system, if only the refrigerant of an ODU is drawn out, add 80% refrigerant of
the rated fill amount (specified on the nameplate of the ODU) and start the system for a debugging test.
Step 16: Install electric parts.
Install the electric box and connect various parts to the electric box by referring to the marks made
beforehand and the wiring diagram on the back of the box. Wire the compressors and corresponding
electric heating belts.
Note: Wires should be checked against the wiring diagram beforehand so that they can be
connected correctly.
Step 17: Start for debugging.
Start the units and set them to run in refrigerating full-start, refrigerating single-start, heating full-start,
and heating single-start modes respectively. Duration for each running mode should be 30 minutes at
least. After the debug, analyze data and adjust the unit system, to ensure indexes of the entire system.
For details about each index, please consult after-sale persons and technicians.
III. Cautions on Compressor Drive
Replacement
1. Disconnect the power supply of the system. Set a multimeter to the AC voltage gear and measure
voltage between two of the lines (L1, L2, L3, and N). The measuring result should be 0 V
(sometimes, multimeters may be faulty and read false values). Set a mark beside the power supply
for warning.
2. Measure compressor drive DC bus voltage between two wire terminals of P, U, V, W and N. Set the
multimeter to the DC voltage gear and measure the voltage between P and N. The voltage should
be lower than 36 V. If no multimeter is available, wait for 20 minutes before performing the steps
below.
Note: The blue squares
indicate pads.
3. Disconnect all lines of the compressor drive, including: compressor line; communication line
between the master unit and the drive; communication line between the compressor drive and fan
drive; compressor drive output 18 VDC; bridge rectifier output P; bridge rectifier output N;
compressor drive output 540 VDC; r
eactor‘s wiring terminal; bridge rectifier input AC inlead;
compressor drive‘s mains termi
nal. See the figure below:
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 29: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 26 V Construction Organization Process...
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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...
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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 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 277: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 274 Power input Gateway Running Alarm Power Address Function...
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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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