Page 1
Installation Manual of Room Air Conditioner
Preparation
Necessary Tools for Installation
Hammer
Nipper
Hacksaw
Hole core drill
Spanner wrench(17,19 and 26mm)
Gas leakage detector or
soap-and-water solution
Torque wrench
(17mm,22mm,26mm)
Pipe cutter
Flaring tool
Knife
Measuring tape
Reamer
Power Source
All wiring to the unit must be in accordance with the National Electric code
and local ordinances.
Drawing for the installation of indoor and outdoor units
The models use HFC free refrigerant R410A
more than 15 cm
more than
(4 in.)
(6 in.)
Indoor unit A
10cm
Indoor unit B
Indoor Unit - Select a location that is
Robust not causing vibration, where the unit can be supported satisfactorily.
Not affected by heat or steam generated in the vicinity, and where the inlet and outlet of
the unit are not disturbed.
Possible to drain easily, and where piping can be connected with the outdoor unit.
Where conditioned air can be spread in a room evenly.
Place where the distance of more than 3 ft from televisions, radios, wireless apparatuses
and uorescent lamps 3 feet or approximately.
In the case of xing the remote controller on a wall, place where the indoor unit can
receive signals when the uorescent
Outdoor Unit - Select a location that is
Strong enough base to bear the unit, where vibration and noise are not increased.
That is easily accessible for maintenance or service.
A distance marked is available as illustrated in the below gure.
more than 10cm
(4 in.)
Selection of Installation Place
Attention must be paid to
the downward angle up
of drain hose
F
lamps in the room are in use.
tilated.
Optional parts for piping
Non-adhesive tape
A
Adhesive tape
B
Saddle (L.S) with screws
C
Connecting electric cable
D
for indoor and outdoor
E
Drain hose
F
Insulating material
G
Piping hole cover
Floor xing dimensions of the outdoor unit
(Unit:mm / inch)
Arrangement of piping
directions
more than 20cm
(8 in.)
Left
Rear left
Rear
right
Right
Below
more than 20cm
(8 in.)
The marks from to
G
in the gure are the
A
Part Numbers.
The distance between
the indoor unit and the
more than
60cm
(24 in.)
oor should be more
than 6 ft.
The above picture is for reference only. Your product may look different.
Read this manual before installation
Explain the operation of the unit to the user according to this manual
NO.0010564641
C
D
more than 15cm
(6 in.)
HSU218VHG-W
2HUM18HC03/R2(DB)
Fixing of outdoor unit
E
Z
X Y X
Dimensions(mm/inches)
Model
Fix the unit to concrete or block
(2/5 in.) securely.
When tting the unit to wall
rooftop, x the unit securely in consideration
earthquake and strong wind.
of
If vibration may affect the
by attaching a
x y z
113.5
(4 1/2)
surface, roof or
vibration-proof mat.
house, x the unit
583
(23)
with bolts
(12 5/8)
319.5
Page 2
Remote controller (1)
AAA dry battery (2)
Mounting plate (1)
Plastic cap (4)
Ø4X25 Screw
(4)
Accessory parts
Drain hose (1)
Cushion (4)
Drain-elbow (1)
Pipe supporting plate (1)
Selection of pipe
2
Making a Hole on the Wall and Fitting the Piping Hole Cover
Make a hole of B mm / inches
Install piping hole cover and seal it off with putty af ter installation
Wall hole
ØBmm
Indoor side
(Section of wall hole)
in diameter, slightly descending
Pitch downward for drainage
09k/12k : B= 60mm(2 3/8 inches)
18k/24k : B=70mm(2 3/4 inches)
Thickness of wall
Piping hole pipe
G
Outdoor side
to outside the wall.
Model Liquid pipe (Ø)
HSU218VHG-W
2HUM18HC03/R2(DB)
NOTE The thickness of the pipe must be 0.8mm(1/16”) at least.
6.35mm (1/4 ")
Gas pipe (Ø)
9.52mm (3/8 ")
Indoor unit
1
Fitting of the Mounting Plate and
When the mounting plate is rst xed
1. Carry out, based on the wall studs or lintels,
to be xed against the wall, then temporarily fasten the plate with one nail.
2. Assure that the mounting plate is level horizontal and vertical then fasten
the plate.
3. Find the wall hole location A using a measuring tape
Locating of the Wall Hole
proper leveling for the plate
B =
Ø 60mm
(2 3/8 inches)
A = 145mm
(5 11/16 inches)
30mm
)
inches
(1 1/6
3
Installation of the Indoor Unit
Drawing of pipe
[ Rear piping ]
Pull the pipes and the drain hose through , 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 lef t-rear piping which is marked on insulation materials.
1. Insert the drain hose into the cavity of heat insulation materials of indoor unit.
2. Insert the indoor/outdoor electric cable from backside of the indoor
pull it out on the front side, then connect them.
3. Coat the aring seal face with refrigerant oil and connect pipes.
Cover the tubing connection with insulation materials closely, and with adhesive
tape.
Insulation
material
Lid for right
piping
Lid for under piping pipe
Fix with adhesive tape
Indoor/outdoor electric cable and drain hose must be bound with refrigerant
piping with adhesive.
Lid for left piping
Drain hose
unit, and
Indoor/outdoor electric cab le
Piping
Pipe supporting
plate
[ Other direction piping ]
Cut away, with a nipper, the lid for piping according to the piping direction and
then bend the pipe according to theposition of wall hole. When bending, be
careful not to crush
Make sure that the wires connecting the indoor and outdoor units are not covered
by the refrigeration piping insulation and are long enough to connect to the terminal
block on the indoor unit.
pipes.
Attaching the indoor unit body
Hang the indoor unit body onto the upper notches of the
mounting plate. Move the unit in all places from side to
side to verify its
In order to x the body onto the mounting plate,hold up
the body from the underside and then put it down
perpendicularly.
secure xing.
mounting plate
Removing of indoor unit body
When you remove the indoor unit,please
use
your hand to raise the unit ,
then
lift the bottom of the unit
outward slightly and lift the unit
until it leaves the mounting plate.
mounting plate
agraffe
2
Page 3
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 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.
When connecting the cable before installing the indoor unit
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.
Outdoor unit
1
Installation of Outdoor Unit
Install according to the instructions on the 1st page of this manual
Connection of pipes
2
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 rst makes working easier.
Ensure the interconnecting tubing is approved for R410A.
Half union
Spanner
Flare nut
Torque wrench
Ensure that no dirt or debris enters the tubing. The standard tubing length is 25ft/7.6m.
If a different length is required, adjust the refrigerant amount by 1/4 oz/ft, 20 g/M for the
9k, 12k and 18k models. For the 24k model, adjust by 1/2 oz/ft, 40 g/M.Before opening
the service valves, evacuate the interconnecting tubing and indoor unit. Follow the
instruction in section 5 on page 4.
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Pipe Diameter( ) Fastening torque
Liquid side6.35mm(1/4") 18N.m/13.3Ft.lbs
Liquid/Gas side 9.52mm(3/8") 42 N.m/30.1Ft.lbs
Gas side 12.7mm(1/2") 55N.m/40.6Ft.lbs
Gas side 15.8 8mm(5/8 ") 60 N.m/44.3Ft.lbs
When connecting the cable, con rm the terminal number of indoor and
Note
outdoor units carefully. If wiring is not correct, the unit will not operate
properly and could cause a defect.
Control wiring :
4wire 18AWG²
Indoor unit A
Control wiring :
4wire 18AWG²
power
Indoor unit B
{
HSU218VHG-W
2HUM18HC03/R2(DB)
Power cable:
3 Wire with ground 12AWG
1(L)
2(N)
Outdoor unit
CAUTION
Outdoor unit
Outdoor unit
Indoor unit
B1
B
A1
B2
A2
Indoor unit
Indoor unit
Outdoor unit
Oil trap
Indoor unit
B1
Indoor unit
A1
A2
B2
Indoor unit
Max.Elevation:
In case the elevation B is more than 5m,
oil trap shoud be installed every 5~7m
Max. Length:
In case the pipe total length (B1+B2) is more than
20m/65ft, the refrigerant should be charged, according
to 20 g/m.
A1 max =15m/50ft A2 max =15m/50ft
A3 max =15m/50ft
B1 max = 20m/65ft B2 max = 20m/65ft
(B1+B2) max = 30m/100ft
Cutting and Flaring Work of Piping
Pipe cutting is carried out with a pipe cutter and burs must
After inser ting the are nut, aring work is carried out.
Flare tool for R410A Conventional are tool
Clutch-type clutch-type(Rigid-type) Wing-nut type (Imperial -type)
0~0.5mm
A
0~1/51 inch
Flare tooling die
1.0~1.5mm
3/76 ~1/17 inch
1.Cut pipe
Outdoor unit
be removed.
1.5~2.0mm
1/17 ~1/8 inch
2.Remove burs
Indoor unit
B1
A3
Indoor unit
B2
1. If the supply cord is damaged, it must be replaced by the manufacturer or its
service agen. The type of connecting wire is H05RN-For H07RN-F.
2. If the fuse on PC board is broken please change it with the
type of
T.3.15A/250VAC (Indoor), T.25A/250VAC (Outdoor), the fuse must be
changed by an authorized servicer.
3. The wiring method should confirm to local electrical codes.
4. Use an HVACR circuit breaker or time delay fuse.
3.Insert the are nut
Lean
Damage of are Partial Too outside
4.Flare pipe
tcerrocnItcerroC
Crack
3
Page 4
1
3
Connection
Power Source Installation
Loosen the screws on
block, then tighten the screws.
If wiring is not correct, the unit will not operate properly and it could cause a
defect in the unit.
Fix the cable with a clamp.
Attaching Drain-Elbow
4
If the drain-elbow is used,
please attach as shown in figure.
(Note:
Only for heat pump unit.)
Purging Method:To use vacuum pump
5
1.
Detach the service port’s cap of
and 3-way valve. Connect the service port to the low side of the gauge manifold
and connect the vacuum pump to the center port of the manifold.
Open the handle on the low side of the gauge manifold and operate vacuum pump.
2.
Vacuum the tubing for at least 15 minutes. The vacuum level on the low side gauge
3.
should be 29.9 in of Hg, 76 cm of Hg, 0.1 MPa. when vacuuming is complete, close
the valve on the manifold and turn off the vacuum pump. The vacuum level should
hold for 1-2 minutes. If the vacuum level does not hold, check the flared connections
and repeat this step.
Open the 2-way valve 1/4 turn. After 5-6 seconds, close the valve and inspect for
4.
leaks with a leak detector or soap solution.
5.
No gas leakage? Go to step 6.
In case of a leak, try tightening the flare connections to fix the leak. If the
leak stops, go to step 6. If the leak continues, check the flare connections
and repair as needed, then go back to step 3. then proceed step 6. If leak
continues, remove the refrigerant used for the leakage check and flare
tubes again. Repeat vacuum and leak and if no leakage, proceed to step 6.
Detach the charge hose6.
valve completely.
To prevent the gas
7.
After attaching the caps, check for leakage around the caps.
8.
Step 1.
2-way valve
3-way valve
2-way valve
3-way valve
Step 4.
O
Open 90
2-way valve
leakage,
2-way valve
3-way valve
3-way valve
terminal block and
3-way valve, and the valve cap for 2-way valve
from the service port,
replace the service port and valve caps.
insert the wires fully into terminal
open 2-way valve and 3-way
Step 2.
2-way valve
3-way valve
2-way valve
3-way valve
Step 6.
Step 7.
Service port cap
Open
Step 3.
2-way valve
3-way valve
2-way valve
3-way valve
Close
Valve cap
Valve cap
CAUTION
If the refrigerant of the air conditioner leaks, it is necessary to discharge all the
refrigerant. Repair the leak, vacuum the unit then charge the liquid refrigerant
into air conditioner
Please do not let other cooling medium, except speci
enter into the cooling circulation system. This could cause high pressure and
could cause a leak and lead to personal injuries.
according to the amount marked on the name plate.
ed one (R410A), or air
The power source must be exclusively used for air
In the case of installing an air conditioner in a moist place,
rth leakage breaker.(GFCI)
For installation in other places, use an HVACR circuit breaker or time delay fuse.
2
On Drainage
Install the drain hose and ensure downward flow.
Do not run the drain hose as shown below.
It becomes
high midway.
Pour water in the drain pan of the indoor unit, and
is proper.
In case that the attached drain hose is in a room, apply insulation to the hose to
prevent condensation.
The end is immersed in water.
It waves.
conditioner.
Less than
5cm
The gap with the
ground is too small.
con
rm that drainage
please install an ea-
There is the bad
smell from a ditch
Refrigerant charge label
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol
R410A
2
1=
2=
1
1+2=
F E
kg
kg
kg
A
B
C
D
This product contains fluorinated greenhouse gases covered by
the Kyoto Protocol. Do not vent into the atmosphere.
Refrigerant type:R410A
GWP* value:1975
GWP=global warming potential
Please fill in with indelible ink,
and
on the refrigerant charge label supplied with the product.
The filled out label must be adhered in the proximity of the product
charging port (e.g. onto the inside of the stop value cover).
A contains fluorinated greenhouse gases covered by the Kyoto
Protocol
B factory refrigerant charge of the product: see unit name plate
C additional refrigerant amount charged in the field
D total refrigerant charge
E outdoor unit
F refrigerant cylinder and manifold for charging
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 interconnecting tubing?
Installation is on the interconnecting tubing?
Are the connecting wirings of indoor and outdoor
inserted to the terminal block?
Is the connecting wiring of indoor and outdoor
Is drainage securely carried out?
Is the ground wire securely connected?
Is the indoor unit securely xed?
Is power source voltage the local codes?
Is there any noise?
Are the lights near the unit working normally?
Are cooling and heating (when in heat pump) performing
Is the operation of room temperature control normal?
Put check mark
rmly xed?
in boxes
rmly
normally?
4
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