DC Inverter U-match Series Floor Ceiling Type Unit
7
Table 3.5
Outdoor Units
Power Supply
Fuse
Capacity
Minimum Circuit
Ampacity
Maximum
Overcurrent
Protection
V/Ph/Hz
A
A
A
KU21-ODU18-3
208/230V ~ 60Hz
5
17
25
KU21-ODU24-3
208/230V ~ 60Hz
5
24
40
KU21-ODU30-3
208/230V ~ 60Hz
5
24
40
KU21-ODU36-3
208/230V ~ 60Hz
5
29
45
KU21-ODU42-3
208/230V ~ 60Hz
5
31
50
KU21-ODU48-3
208/230V ~ 60Hz
5
45
70
Notes:
①
.
The fuse is located on the main board.
②
.
Install the disconnect device with a contact gap of at least 3mm (1/8inch) in
all poles nearby the units (Both indoor unit and outdoor unit).The appliance
must be positioned so that the plug is accessible.
③
.
Take 2 pieces of power cord of 0.75mm
2
(AWG18) as the communication
lines between indoor and outdoor unit, with their longest lengths of 50m
(164feet). Please select the appropriate line length as per the actual
installation conditions. The communication lines can not be twisted together.
For the unit (
≤
30k), it’s recommended to use 8m (26-1/4feet) long
communication line.
④
.
Take 2 pieces of power cord of 0.75mm
2
(AWG18) as the communication
lines between the wired controller and the indoor unit, with their longest
lengths of 30m (98-2/5feet). Please select the appropriate line length as per
the actual installation conditions. The communication lines can not be
twisted together. It’s recommended to use 8m (26-1/4feet) long
communication line.
⑤
.
The wire size of the communication line should be no less than 0.75mm
2
(AWG18). It’s recommended to take 0.75mm
2
(AWG18) power cords as the
communication line.
4 Installation of the Unit
4.1 Installation of the Indoor Unit
4.1.1 Indoor unit dimension
