Hitachi AirCore 700 Installation & Maintenance Manual page 22

4. Installation Instructions
•
Check to ensure that the voltage of power supply is within 10% of nominal voltage and earth phase is
contained in the power supply wires. If not, electrical parts will be damaged.
•
Check to ensure that the capacity of power supply is enough. If not, the compressor will not be able to
operate because of abnormal voltage drop at starting.
•
Check to ensure that the earth wire is connected.
•
Install a main switch, multi-pole main switch with a space of 3.5mm or more, single phase main
switch with a space of 3.0mm or more between phases.
•
Check to ensure that the electrical resistance is more than 2MΩ, by measuring the resistance between
ground and the terminal of the electrical parts. If not, do not operate the system until the electrical
leakage is found and repaired.
Electrical wiring diagram
Model
PAS-2.0UFASNQ1
PAS-2.5UFASNQ1
PAS-3.0UFASNQ1
PAS-4.0UFASNQ1
PAS-5.0UFASNQ1
PAS-6.0UFASNQ1
PAS-6.5UFASNQ1
PAS-4.0UFASMQ1 380-415V 3N ~,50Hz
PAS-5.0UFASMQ1 380-415V 3N ~,50Hz
PAS-6.0UFASMQ1 380-415V 3N ~,50Hz
PAS-6.5UFASMQ1 380-415V 3N ~,50Hz
Max Running Current (A): REFER TO NAMEPLATE
NOTES:
•
The ground wire must be longer than the current-carrying conductor when installing the power cord.
•
The wiring specifications of the weak current communication loop should not be less than RVV(S)P
shielded wire or equivalent, the shielding layer needs to be grounded .
•
Using the air conditioner power terminal to transfer the power cord is strictly prohibited.
•
Follow local codes and regulations when selecting field wires, and all the above are the minimum wire size.
•
Use the wires which are not lighter than the ordinary polychloroprene sheathed flexible cord. (Cord
designation H07RN-F).
•
The wire sizes marked with *1 in the above table are selected at the maximum current of the unit
according to IEC 60335-1.
•
When transmission cable is longer than 15 meters, a larger wire size should be selected.
•
Install main switch and ELB for each system separately. Select the high response type ELB that is
acted within 0.1second.
•
In the case that power cables are connected in series, add each unit maximum current and select
wires below.
Rated current of appliance (A)
＞ 0.2 and ≤16
＞ 16 and ≤25
＞ 25 and ≤32
＞ 32 and ≤40
＞ 40 and ≤63
Max
Power Running
supply Current
(A)
220-240V ~, 50Hz 14
220-240V ~, 50Hz 14
220-240V ~, 50Hz 16
220-240V ~, 50Hz 25
220-240V ~, 50Hz 27.3
220-240V ~, 50Hz 28.5
220-240V ~, 50Hz 28.5
12
12
12
12
ELB
Rated Nominal
current sensitive
(A) current (mA)
16 30
16 30
20 30
32 30
32 30
32 30
32 30
16 30
16 30
16 30
16 30
Nominal cross-sectional area (mm²)
-18-
Transmission
Power source
cable size
cable size
*1
IEC 60335-1 IEC 60335-1
3×2.5mm² 2×0.75mm²
3×2.5mm² 2×0.75mm²
3×2.5mm² 2×0.75mm²
3×4.0mm² 2×0.75mm²
3×4.0mm² 2×0.75mm²
3×4.0mm² 2×0.75mm²
3×4.0mm² 2×0.75mm²
5×2.5mm² 2×0.75mm²
5×2.5mm² 2×0.75mm²
5×2.5mm² 2×0.75mm²
5×2.5mm² 2×0.75mm²
1.5
2.5
4
6
10
*1