GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
103
b. Phase sequence check:
b1. After powering on the unit, measure the grounded voltage value of N-bit on the power patch panel
and the voltage value between every two of L1, L2, and L3 bits. In general, the voltage between N-bit
and L1/L2/L3-bit should approach 220 V and the voltage between every two of L1, L2, and L3 bits should
approach 380 V. If the measurement result does not match the above-mentioned normal value, check
whether the external power cable is inversely connected between the N wire and one of L wires.
b2. Observe the code displayed on the digital LED of the main board AP1. If the fault code
―U3‖ is
displayed, it indicates that the phase sequence of the external power cable connected with the air
conditioning unit is incorrect. Power off the unit and exchange any two phases among L1, L2, and L3 bits
on one end of the external power cable. Power on the unit and observe the code again. The fault code
―U3‖ should disappear.
2.5 Communication System Check
1) The following communication contents must be checked again before commissioning:
2) Communication cables cannot be laid out in the same trough as power cables. Communication cables
should be independently laid out in hard fire-resistant PVC tubes. The parallel spacing between
communication cables and strong electric wires should be larger than 20 cm.
2.6 Installation and Master of Commissioning Software
2.7 Spot Check
Spot Check for GMV5 Commissioning
SN Spot Check Item
Qualified
1 Is the engineering design diagram complete?
2 Does the construction comply with the design diagram?
3
Is the rated capacity of the IDU/ODU of a single refrigerating system within
50%-135%?
4 Is the number of connected IDUs in a single refrigerating system within 80?
5 Is the access capacity of a fresh-air unit within 30%?
6
Does the difference of level between IDUs and ODUs comply with unit design
requirements?
7
Does the difference of level between IDUs comply with unit design
requirements?
8 Is an oil loop installed on the riser every 10 m?
9 Are long pipes of IDUs and ODUs less than or equal to 165 m?
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...
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...
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Страница 224: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 221 2 Model GMV 335WM B X Exploded View...
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 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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