1. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent
or a similar qualified person. The type of connecting wire is H05RN-F or H07RN-F.
2. If the fuse on PC board is broken please change it with the type of T. 3.15A/250V.
3. The wiring method should be in line with the local wiring standard.
4. After installation, the power plug should be easily reached.
5. A breaker should be incorporated into fixed wiring. The breaker should be
all-pole switch and the distance between its two contacts should be not less
than 3mm.
Outdoor unit
Install according to
Drawing for the installation of indoor and outdoor units
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and the bending radius should be 30 to 40 mm or longer.
Connecting the pipe of gas side first makes working easier.
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The connection pipe is specialized for R410A.
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Installation of Outdoor Unit
Half union
Flare nut
Torque wrench
The standard pipe length is 5m. If it is over 7m, the function of the unit will be
affected. If the pipe has to be lengthened, the refrigerant should be charged,
according to 50 g/m. But the charge of refrigerant must be conducted by profes-
sional air conditioner engineer. Before adding additional refrigerant, perform air
purging from the refrigerant pipes and indoor unit using a vacuum pump,then
Spanner
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Pipe Diameter(ǿ)
Fastening torque
Liquid side6.35mm(1/4")
18N.m
Liquid/Gas side9.52mm(3/8")
42 N.m
Gas side 12.7mm(1/2")
55N.m
Gas side 15.88mm(5/8")
60 N.m
Connection of pipes
charge additional refrigerant.
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
B
Outdoor unit
Indoor unit
Oil trap
CAUTION
Max.Elevation: Amax=15m
●
In case the elevation A is more than 5m,
●
oil trap shoud be installed every 5~7m
Max. Length: Bmax=25m
=
●
In case the pipe length B is more than 7m,
●
the refrigerant should be charged,according
to 50 g/m.(for 24k)
3
Connection
If the drain-elbow is used,
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please attach it as figure. (Note:
Only for heat pump unit.)
Attaching Drain-Elbow
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Take off the panel(top), by removing the 5 screws.
Remove the plugs on the conduit plate.
Temporarily mount the conduit tubes on the conduit plate.
Connect both the power supply and unit wire harness to
the corresponding terminals on the terminal board.
Ground the unit in accordance with local codes.
Allow several extra inches of wire for making wiring
connections.
Use lock nuts to secure conduit tubes.
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To bend a pipe, be careful not to crush the pipe,
Ensure that on dirt or debris enters the pipe.
Connecting wiring:
AWG18
X
6,
Power Cable:
AWG12
X
3.
Indoor unit
Outdoor unit
Connecting wiring:
AWG18
X
6,
Power Cable:
AWG12
X
3.
Indoor unit
Outdoor unit
SN-18000-H
SN-24000-H
In case the pipe length B is more than 7m,
the refrigerant should be charged,according
to 20 g/m.(for 18k)
