Service Manual

10
5. Wiring Diagram
(Pls refer the wiring diagram on the unit)
6 Installation Details
6.1 Wrench torque sheet for nstallation
Outside diameter
Torque
Additional tightening
torque
Ф6.35mm
1/4in
1500N.cm(153kgf.cm)
1600N.cm(163kgf.cm)
Ф9.52mm
3/8in
2500N.cm(255kgf.cm)
2600N.cm(265kgf.cm)
Ф12.7mm
1/2in
3500N.cm(357kgf.cm)
3600N.cm(367kgf.cm)
Ф15.9mm
5/8in
4500N.cm(459kgf.cm)
4700N.cm(479kgf.cm)
Ф19mm
3/4in
6500N.cm(663kgf.cm)
6700N.cm(683kgf.cm)
6.2 Connecting the cables
The power cord should be selected according
to the following specifications sheet.
Appliance Amps
AWG Wire Size
10
18
13
16
18
14
25
12
30
10
The cable size and the current of the fuse or
switch is determined by the maximum
current indicated on the nameplate which
located on the side panel of the unit. Please
refer to the nameplate before selecting the
cable, fuse and switch.
6.3 Pipe length and the elevation
Models
Pipe size
Gas
Liquid
KSIH009-H225-IW +
KSIH009-H225-O
3/8in (9.52 mm)
1/4in (6.35 mm)
KSIH012-H222-IW +
KSIH012-H222-O
1/2in (12.7 mm)
1/4in (6.35 mm)
KSIH018-H220-IW +
KSIH018-H220-O
KSIH024-H220-IW +
KSIH024-H220-O
5/8in (15.9 mm)
3/8in (9.52 mm)
Models
Standard
Max.
Max.
Additional
Length
Elevation
Length
A
Refrigerant
KSIH009-H225-IW+
KSIH009-H225-O
24.6 ft
(7.5m)
32.8 ft
(10m)
82.0 ft
(25m)
0.16 oz/ft
(15g/m)
KSIH012-H222-IW+
KSIH012-H222-O
KSIH018-H220-IW+
KSIH018-H220-O
24.6 ft
(7.5m)
65 ft
(20m)
98 ft
(30m)
0.16oz/ft
(15g/m)
KSIH024-H220-IW+
KSIH024-H220-O
24.6 ft
(7.5m)
82 ft
(25m)
164 ft
(50m)
0.32oz/ft
(30g/m)
6.4 Installation for the first time
Air and moisture in the refrigerant system have
undesirable effects as below:
● Pressure in the system rises.
● Operating current rises.
● Cooling or heating efficiency drops.
● Moisture in the refrigerant circuit may
freeze and block capillary tubing.
● Water may lead to corrosion of parts in the
refrigerant system.
Therefore, the indoor units and the pipes
between indoor and outdoor units must be leak
tested and evacuated to remove gas and
moisture from the system.
Gas leak check (Soap water method):
Apply soap water or a liquid neutral
detergent on the indoor unit connections or
outdoor unit connections by a soft brush to
check for leakage of the connecting points of
the piping. If bubbles come out, the pipes have
leakage.