1
. The wiring method should be in line with the local wiring standard.
2
. After installation, the power plug should be easily reached.
3
. A breaker should be incorporated into fixed wiring. The breaker should be
all-pole switch.
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 (1 1/6) to 40 mm (1 4/7) 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 7m (27 9/16) . If it is over 7m (27 9/16) , the function
of the unit will be affected. If the pipe has to be lengthened, the refrigerant should
be charged, according to 20 g/m (0.018 oz/inch). But the charge of refrigerant must
be conducted by professional air conditioner servicer. 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/13.3Ft.lbs
Liquid/Gas side9.52mm(3/8")
42 N.m/30.1Ft.lbs
Gas side 12.7mm(1/2")
55N.m/40.6Ft.lbs
Gas side 15.88mm(5/8")
60 N.m/44.3Ft.lbs
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=1
m
●
In case the elevation A is more
●
than 5m, oil trap shoud be
installed every
20ft (6
m
)
Max. Length: Bmax=15m
●
In case the pipe length B is
●
more than 10m, the refrigerant
should be charged, according
to 20 g/m.
3
Connection
If the drain-elbow is used,
ƽ
please attach it as figure. (Note:
Only for heat pump unit.)
1.
Open the handle on low side of manifold and
2.
operate vacuum pump. If the low
3.
After the completion of vacuuming, close the handle ‘Lo’ in gaugemanifold and
stop the operation of the vacuum pump.
Attaching Drain-Elbow
Purging Method:To use vacuum pump
Open the valve rod stem the 2-way valve counterclockwise to 90 degrees.
4.
After 6 seconds, close the 2-way valve and inspect for gas leakage.
Power cable:
HSU12VHJ(DB)-W
Outdoor unit
3
2
^
Power
Wiring
1
)
(N
)
(L
)
(C
3
2
1
)
(N
)
(L
)
(C
Indoor unit
Power cable:
ƽ
ƽ
ƽ
ƽ
ƽ
ƽ
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,
HSU09VHJ(DB)-W
HSU24VHJ(DB)-W
HSU18VHJ(DB)-W
HSU12XCK-W
HSU09XCK-W
Power cable:
Power cable:
Power cable:
Power cable:
3
wire
1
4
AWG
2wire with ground 1
2
AWG
2wire with ground 1
2
AWG
2wire with ground 1
2
AWG
2wire with ground 1
2
AWG
2wire with ground 1
2
AWG
2wire with ground 1
2
AWG
Outdoor unit
Indoor unit
Remove the service port cap of the 3-way valve and the valve stem cap for both
valves. Connect the low pressure hose from the manifold set to the 3-way valve.
Connect the center hose to the vacuum pump.
side gauge reaches a vacuum immediately, ensure the hoses are connected
properly and the low side manifold handle is open.
Vacuum for a minimum of
30
minutes
,pull vacuum to 600 microns
.
Leave the hoses connected and check
the vacuum level again in
5
-
10
minutes. If you lose the vacuum, ensure all
connections are tight and flare the tubes again if needed.
Ensure that no dirt or debris enters the pipe.
Control Wiring
All models: Control cable: 4wire, 1
4
AWG
≥3wire
1
4
AWG
