Tightening torques
Tightening torque (N•m)
Item
M4 (power terminal,
electric control board
1.2 to 1.4
terminal)
M4 (earthed)
1.2 to 1.4
6.4 Connection of power supply
6.4.1 Wiring of main power supply
CAUTION
Use a round crimp-style terminal for
connection to the power supply terminal
board. If it is not available, refer to the
INSTALLATION,
OPERATION
MAINTENANCE
MANUAL
information.
The power cord model is or H07RN-F.
Illustrations below are for 3-phase units.
The principle is the same for 1-phase units.
Illustrations below are for units with a
backup heater. For more illustrations, refer to
the INSTALLATION, OPERATION AND
MAINTENANCE MANUAL.
Maximum
Power
circuit
Unit
supply
current (A)
4 kW
15
6 kW
15
19
8 kW
220-240 V~
10 kW
19
50 Hz
12 kW
31
31
14 kW
16 kW
31
12 kW
11
3 PH
14 kW
11
380-415 V
3 PH
3N~ 50 Hz
16 kW
11
3 PH
AND
for
more
Minimum wire
2
size (mm
)
(2 + PE) x (2.5-4)
(2 + PE) x (2.5-4)
(2 + PE) x (4-6)
(2 + PE) x (4-6)
Main power supply
(2 + PE) x (6-10)
(2 + PE) x (6-10)
(2 + PE) x (6-10)
(4 + PE) x (2.5-4)
Backup heater
(4 + PE) x (2.5-4)
power supply
(4 + PE) x (2.5-4)
Leakage protection switch must be installed.
6.4.2 Wiring of backup heater power
Backup
heater
type
3 kW
6 kW
9 kW 380-415 V 3~ 50 Hz
Refer to the illustration above for the wiring.
24
A
L1 L2 L3 N
B
L1L2 L3
A
L
1
L
2
L
3
N
L
B
1
L
2
L
3
CAUTION
supply (optional)
Maximum
circuit
Power supply
current (A)
220-240 V~ 50 Hz
13.5
380-415 V 3~ 50 Hz
13.5
13.5
Minimum wire
2
size (mm
)
(2 + PE) x (2.5-4)
(3 + PE) x (2.5-4)
(3 + PE) x (2.5-4)
V.1