Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
B
Outdoor unit
Indoor unit
Oil trap
Outdoor unit
Install according to the instructions on the 1st page of this manual
When bending the interconnect tubing, ensure the radius is at least 1 1/4" to 1 3/4",
30mm to 40mm to ensure against crushing the tubing.
●
Connecting the pipe of gas side
fi
rst makes working easier.
●
Ensure the interconnecting tubing is approved for R410A.
●
Installation of Outdoor Unit
Half union
Flare nut
Torque wrench
CAUTION
Spanner
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
1
Connection of pipes
2
1. If the supply cord is damaged, it must be replaced by the manufacturer or its
service agent or a similar quali
fi
ed 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
3. The wiring method should be in line with the local wiring standard.
4. Use an HVACR circuit breaker or time delay fuse.
T.3.15A/250VAC (Indoor), T.25A/250VAC (Outdoor).
4
Connecting the indoor/outdoor Electric Cable
Removing the wiring cover
Remove terminal cover at right bottom corner of indoor unit, then take off
●
wiring cover by removing its screws.
1. Insert the cable from the outside into the unit through the same
hole that has the interconnecting tubing.
2. Pull out the cable on the front side, and connect the cable
making a loop.
Note
When connecting the cable, con
fi
rm the terminal number of indoor and
outdoor units carefully. If wiring is not correct, the unit will not operate
When connecting the cable after installing the indoor unit
When connecting the cable before installing the indoor unit
Indoor unit
Outdoor unit
•
Max.Elevation: Amax
= 32.8ft / 10m (09k / 12k)
= 50ft / 15m (18k / 24k)
•
In case the elevation A is more
than 16.4ft / 5m, oil trap shoud be
installed every 5~7m(16.4ft-23ft)
•
Max. Length: Bmax
= 50ft / 15m (09k / 12k)
= 83.3ft / 25m (18k / 24k)
●
●
●
Insert the cord from the back side of the unit, then pull it out on the front side.
Fasten the unit wire harness to the conduit holder using the lock nut.
Position the conduit holder to its original state using screw.
4wire 14AWG
Control Wiring
Power cable:
3wire with ground 14AWG
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
properly and could cause a defect.
Ensure that no dirt or debris enters the tubing. The standard tubing length is 25 ft/7.5M.
If a different length is required, adjust the refrigerant amount by 1/2 oz/ft, 50 g/M for the
9k, 12k and 18k models. For the 24k model, adjust by 1/2 oz/ft, 50 g/M.Before opening
the service valves, evacuate the interconnecting tubing and indoor unit. Follow the
instruction in section 5 on page 4.
Pipe cutting is carried out with a pipe cutter and burs must
●
be removed.
After inserting the
fl
are nut,
fl
aring work is carried out.
●
Cutting and Flaring Work of Piping
Flare tool for R410A
Conventional
fl
are tool
Clutch-type
clutch-type(Rigid-type) Wing-nut type (Imperial-type)
A
0~0.5mm
1.0~1.5mm
1.5~2.0mm
0~1/51 inch
3/76 ~1/17 inch
1/17 ~1/8 inch
Flare tooling die
1.Cut pipe
2.Remove burs
3.Insert the
fl
are nut
4.Flare pipe
Lean Damage of
fl
are
Partial Too outside
Correct
Incorrect
Crack
HSU12VHGL-W
(4G0.75mm )
Domestic air conditioner
3
3
System configuration
