Debugging Of Unit - Gree R410A Manual

Photovoltaic Direct-driven VRF
for North America
9.2 Power Cable Wire Gauge and Circuit Breaker Selection
9.2.1 Outdoor
Model Power supply
GMV-HY36WLT/A-T(U)
208/230V~ 60Hz
GMV-HY48WLT/A-T(U)
208/230V~ 60Hz
9.3.2 Indoor
(1) Low Static Pressure Duct Type Indoor Unit
GMV-ND07PLS/
Model
A-T(U)
MCA A 0.25
MOP A 0.45
(2) 4-way Cassette Indoor Unit
Model GMV-ND07T/A-T(U)
MCA 0.25
MOP 0.45
Model GMV-ND24T/A-T(U)
MCA 0.31
MOP 0.56
(3) Wall Mounted type Indoor Unit
Model
MCA A
MOP A

10 Debugging of Unit

Caution:
① .
can't operate.
② . The debugging must be performed by professional person or under the the guide of professional person.
10.1 Preparation for debugging
(4)
(5) All wires for controller and electric wires must be connected correctly and reliably.
(6)
(7) Remove all sundries from the unit, such as metal chips, joint, forceps holder, and so on.
(8) Check whether the appearance and pipeline system are damaged during carry or transportation process.
(9) Calculate the required added refrigerant-charging volume according to the length of pipe of system and pre-charge the refrigerant.
If refrigerant can't be added any more when the required refrigerant-charging volume hasn't been reached, record to refrigerant
volume which still needs to be added and continue to add refrigerant during run test operation process. Please refer to below run
test for the refrigerant-adding stage during run test process.
(10) After adding refrigerant, please make sure the valve for outdoor is opened completely.
(11) For the convenient of troubleshooting, the unit can't be connected to the PC which installed with related debugging software and
make sure that the the datas in real time of this unit can be inspected by this computer. Please refer to Service Manual for the
installation and connection of the bebugging software.
(12) Before turn test, please do make sure that the preheat time for compressor is 8h above and touch the compressor to see whether
preheat is normal. You can perform run test only after normal preheat. Otherwise, it may damage the compressor.
10.2 Test run of unit
Debugging procedure for test run, display instruction for indicator on test board of outdoor unit and operation method are as below:
56
Max Fuse Size/
Fusible Max.
(A)
60
60
GMV-ND09PLS/ GMV-ND12PLS/
A-T(U)
0.25
0.45
GMV-ND09T/A-T(U)
0.31
0.56
GMV-ND30T/A-T(U)
0.44
0.79
GMV-N07G/A3A- GMV-N09G/A3A-
D(U) D(U)
0.25 0.25
0.45 0.45
Max Ckt, Bkr Size/
Disjoncteur Max.(A)
60
60
GMV-ND14PLS/
A-T(U) A-T(U)
0.25 0.38
0.45 0.68
GMV-ND12T/A-T(U) GMV-ND15T/A-T(U)
0.31
0.56
GMV-ND36T/A-T(U) GMV-ND42T/A-T(U)
0.44
0.79
GMV-N12G/A3A-
D(U)
0.2625
0.4725
Min. Circuit Ampacity
35
35
GMV-ND18PLS/ GMV-ND22PLS/
A-T(U) A-T(U)
0.63 0.63
1.13 1.13
GMV-ND18T/A-T(U)
0.31 0.31
0.56 0.56
GMV-ND48T/A-T(U)
0.44 0.44
0.79 0.79
GMV-N18G/A3A- GMV-N24G/A3A-
D(U) D(U)
0.2625 0.3875
0.4725 0.6975