Installation Manual of Room Air Conditioner
Read this manual before installation
Explain sufficiently the operating means to the user
according to this manual.
Necessary Tools for Installation
1.Driver
2.Hacksaw
3.Hole core drill
4.Spanner(17,19 and 26mm)
Accessory parts
No. Accessory parts
1
2
3
4
5
6
7
Remote controller
R-03 dry battery
Mounting plate
Drain hose
Steel nail, cement
4X25
Screw
Plastic cap
Cover
4X50
5.Torque wrench(17mm,22mm,26mm)
6.Pipe cutter
7.Flaring tool
8.Knife
Number
of
articles
1
2
Optional parts for piping
1
Mark
1
6
4
1
A
B
C
D
E
F
Heating insulating material
G
9.Nipper 12.Reamer
10.Gas leakage detector or
soap-and-water solution
11.Measuring tape
Drawing for the installation of indoor and outdoor units
more than 5cm
Attention must be paid to
the rising up of drain hose
A
Parts name
Non-adhesive tape
Adhesive tape
Saddle(L.S) with screws
Connecting electric cable
for indoor and outdoor
Drain hose
Piping hole cover
more than 10cm
G
more than 10cm
F
8
Cushion
No.0010515197
4
Arrangement of piping directions
Rear left
Below
Rear
right
Right
Left
The marks from to in the figure are the parts numbers.
The distance between the indoor unit and the floor should be
more than 2m.
more than 60cm
A
more than 10cm
more than 10cm
G
C
D
E
more than 15cm
500140 140
Floor fixing dimensions
of the outdoor unit
(Unit:mm)
256
583 113.5113.5
Floor fixing dimensions
of the outdoor unit
(Unit:mm)
319.5
HSU-12CVY03
HSU-18CVY03
Fixing of outdoor unit
Fix the unit to concrete or block with bolts( 10mm) and nuts firmly and horizontally.
When fitting the unit to wall surface, roof or rooftop, fix a supporter surely with nails
or wires in consideration of earthquake and strong wind.
If vibration may affect the house, fix the unit by attaching a vibration-proof mat.
Indoor Unit
Place, robust not causing vibration, where the body can be supported
sufficiently.
Place, not affected by heat or steam generated in the vicinity, where
inlet and outlet of the unit are not disturbed.
Place, possible to drain easily, where piping can be connected with the
outdoor unit.
Place, where cold air can be spread in a room entirely.
Place, nearby a power receptacle, with enough space around. (Refer
to drawings).
Place where the distance of more than lm from televisions, radios,
wireless apparatuses and fluorescent lamps can be left.
In the case of fixing the remote controller on a wall, place where the
indoor unit can receive signals when the fluorescent lamps in the room
are lightened.
Selection of Installation Place
HSU-22CVY03
Outdoor Unit
Place, which is less affected by rain or direct sunlight and is
sufficiently ventilated.
Place, possible to bear the unit, where vibration and noise are
not increased.
Place, where discharged wind and noise do not cause a
nuisance to the neighbors.
Place, where a distance marked is available as illustrated
in the above figure.
Power Source
Before inserting power plug into receptacle, check the voltage without fail. The power source is the same as the corresponding name plate.
Install an exclusive branch circuit of the power.
A receptacle shall be set up in a distance where the power cable can be reached. Do not extend the cable by cutting it.
Selection of pipe
To this unit, both liquid and gas pipes shall be insulated
as they become Iow temperature in operation.
Use optional parts for piping set or pipes covered with
equivalent insulation material.
Liquid pipe( )
Gas pipe( )
2
For 12 18
6.35mm(1/4")
12.7mm(1/2")
For 22
9.52mm(3/8")
15.88mm(5/8")
Indoor unit
Indoor unit
1.Fitting of the Mounting Plate and Positioning of the wall Hole
When the mounting plate is first fixed
1.Carry out, based on the neighboring pillars or lintels, a proper leveling for the plate to be
fixed against the wall, then temporarily fasten the plate with one steel nail.
2. Make sure once more the proper level of the plate, by hanging a thread with a weight from
the central top of the plate, then fasten securely the plate with the attachment steel nail.
3. Find the wall hole location A using a measuring tape
A=170mm
Fit the level line
35
When the mounting plate is fixed side bar and lintel
Fix to side bar and lintel a mounting bar, Which is separately sold, and then fasten
the plate to the fixed mounting bar.
Refer to the previous article, " When the mounting plate is first fixed ", for the
position of wall hole.
2.Making a Hole on the Wall and Fitting the Piping Hole Cover
Make a hole of 70 mm in diameter,
slightly descending to outside the wall.
Install piping hole cover and seal it
off with putty after installation
Indoor side
Wall hole
70mm
Outdoor side
Thickness
of wall
G
(Section of wall hole)
Piping hole pipe
3.Installation of the Indoor Unit
Drawing of pipe
[ Rear piping ]
Draw pipes and the drain hose, then fasten them with the adhesive tape
[ Left Left-rear piping ]
In case of left side piping, cut away, with a nipper, the lid for left piping.
In case of left-rear piping, bend the pipes according to the piping direction to the mark of hole for left-rear
piping which is marked on heat insulation materials.
3
Indoor unit
1. Insert the drain hose into the dent of heat insulation materials of indoor unit.
2. Insert the indoor/outdoor electric cable from backside of indoor unit, and pull it out on the front side, then
connect them.
3. Coat the flaring seal face with refrigerant oil and connect pipes.
Cover the connection part with heat insulation materials closely, and make sure fixing with adhesive tape
Heat insulation
material
Lid for right piping
Lid for under piping
Fix with adhesive tape
Indoor/outdoor electric cable and drain hose must be bound with refrigerant piping by protecting tape.
Lid for left piping
Drain hose
Piping
Indoor/outdoor
electric cable
[Other direction piping]
Cut away, with a nipper, the lid for piping according to the piping direction and then bend the pipe according
to the position of wall hole. When bending, be careful not to crash pipes.
Connect beforehand the indoor/outdoor electric cable, and then pull out the connected to the heat insulation
of connecting part specially.
Fixing the indoor unit body
Hang surely the unit body onto the upper notches of the
mounting plate. Move the body from side to side to verify
its secure fixing.
In order to fix the body onto the mounting plate,hold up
the body aslant from the underside and then put it down
perpendicularly.
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.
When connecting the cable after installing the indoor unit
1. Insert from outside the room cable into left side of the wall hole, in which
the pipe has already existed.
2. Pull out the cable on the front side, and connect the cable making a loop.
4
Indoor unit
When connecting the cable before installing the indoor unit
Insert the cable from the back side of the unit, then pull it out on the front side.
Loosen the screws and insert the cable ends fully into terminal block, then tighten the screws.
Pull the cable slightly to make sure the cables have been properly inserted and tightened.
After the cable connection, never fail to fasten the connected cable with the wiring cover.
Note: When connecting the cable, confirm the terminal number of indoor and outdoor units carefully. If wiring
is not correct, proper operation can not be carried out and will cause defect.
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 H05/07RN-F or 245IEC57(YZW).
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.
Indoor unit
Connecting wiring:
Connecting wiring:
Indoor unit
Connecting wiring:
HSU-12CVY03
HSU-18CVY03
3X1.5mm
3G1.0mm
HSU-22CVY03
Outdoor unit
2
(For 18)
2
(For 12)
power
1 2
L
N
{
Outdoor unit
5
Outdoor unit
6.Easily-demount cleaning of indoor unit
1.Top inlet can be taken down
Open the inlet grille, press the claw of the clip on the unit,then
take down the top inlet.(according to figure 1)
2.Vertical flap can be taken down
Overturn the vertical flap, press the claw of the clip ,then take
down vertical flap.(according to figure 2)
3.Horizontal louvers can be taken down
After taking down vertical flap.Horizontal louvers are appeared,draw
the middle louver,and take down the horizontal louvers .
(according to figure 3)
Outdoor unit
1.Installation of Outdoor Unit
claw of the clip
Figure 2
Daff
Figure 1
Figure 2
Figure 3
Install according to
Drawing for the installation of indoor and outdoor units
2.Connection of pipes
To bend a pipe, give the roundness as large as possible not to crush the pipe ,and the bending radius
should be 30 to 40 mm or longer.
Connecting the pipe of gas side first makes working easier.
Half union
Spanner
Flare nut
Torque wrench
Forced fastening without careful centering
may damage the threads and cause a
leakage of gas.
Pipe Diameter ( )
Liquid side 6.35mm(1/4")
Liquid side 9.52mm(3/8")
Gas side 12.7mm(1/2")
Gas side 15.88mm(5/8")
Fastening torque
18N.m
40N.m
50N.m
60N.m
3.Connection
Use the same method on indoor unit. Loosen the screws on terminal block and insert the plugs fully into
terminal block, then tighten the screws.
Insert the cable according to terminal number in the same manner as the indoor unit.
If wiring is not correct, proper operation can not be carried out and controller may be damaged.
Fix the cable with a clamp.
4.Attaching Drain-Elbow
If the drain-elbow is used, please attach it as
figure. (Note: Only for heat pump unit.)
6
Outdoor unit
6.Purging Method:
Push the air out of the indoor unit
and piping as followes:
(1) Remove the valve cap on 2-way
valve in outdoor unit.
(2) Loosen by 1/2 turn the flare nut of
gas pipe, which is conneted to
3-way valve.
(3) Loosen 2-way valve by 90o using
hexagon wrench, and after approx.
10 sec tighten it up. Gas comes out
through flare nut on wide pipe. If no
gas is discharged, tighten flare nut
with specified torque.
(4) Open 2-way and 3-way valves
using specified torque.
2-way valve
6.35mm(1/4")
HSU-12CVY03
HSU-18CVY03
3-way valve
12.7mm(1/2")
(5) Tighten the caps on the valves
with specified torque.
Tighten torque N.m
Valve rod
Valve cap
When connecting pipe exceeds 5 meters, 16g refrigerant shall be added
per exceeding meter. Charge according to the following list.
Piping length
Additional amount
Note: When extending piping, air inside piping shall be removed by using external
refrigerant gas, charge according to the following list.
Brand new outdoor unit is charged 50g(18k) or 80g(24k) more refrigerant than regulated weight.
Only for first installation, this extra 50g(18k) or 80g(24k) can be used to purge air in pipes.
7-9
20-25
5m 7m
No need
32g
10m
80g
2-way valve
9.52mm(3/8")
HSU-22CVY03
3-way valve
15.88mm(5/8")
During this procedure, 50g(18k) or 80g(24k) refrigerant will be discharged in piping.
(This must be strictly controlled within 90o and 10 sec.)
7
1.Power Source Installation
The power source must be exclusively used for air conditioner. (Over I0A)
In the case of installing an air conditioner in a moist place, please install
an
earth leakage breaker.
For installation in other places, use a circuit breaker as far as possible.
2.Cutting and Flaring Work of Piping
Pipe cutting is carried out with a pipe cutter and burs must be removed.
After inserting the flare nut, flaring work is carried out.
A
Pipe diameter( )
1.Cut pipe
Flare tooling die
2.Remove burs
Liquid side
Liquid side
Gas side 9.52mm(3/8")
Gas side 12.7mm(1/2")
Gas side 15.88mm(5/8")
6.35mm(1/4")
9.52mm(3/8")
3.Insert the flare nut
Correct
Incorrect
4.Flare pipe
Lean Damage of flareCrack Partial Too outside
3.On Drainage
Please install the drain hose so as to be downward slope without fail.
Please don't do the drainage as shown below.
Size A(mm)
0.8~1.5
1.0~1.8
1.0~1.8
1.2~2.0
1.4~2.2
Less than 5cm
It becomes high midway.
The end is immersed
in water.
It waves. The gap with the ground
is too small
There is the bad smell
from a ditch
Please pour water in the drain pan of the indoor unit, and confirm that drainage is
carried out surely to outdoor.
In case that the attached drain hose is in a room, please apply heat insulation
to it without fail.
Check for Installation and Test Run
Please kindly explain to our customers how to operate through the instruction manual.
Check Items for Test Run
Gas leak from pipe connecting?
Heat insulation of pipe connecting?
Are the connecting wirings of
indoor and outdoor firmly inserted
to the terminal block?
Is the connecting wiring of indoor
and outdoor firmly fixed?
Put check mark in boxes
Is drainage securely carried out?
Is the earth line securely
connected?
Is the indoor unit securely fixed?
Is power source voltage abided
by the code?
Is there any noise?
8
Is the lamp normally lighting?
Are cooling and heating (when
in heat pump) performed normally?
Is the operation of room temperature
regulator normal?
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