Installation Manual of Room Air Conditioner
Preparation
Necessary Tools for Installation
Selection of Installation Place
● Torque wrench
(17mm,22mm,26mm)
● Driver
● Nipper
● Hacksaw
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).
● Pipe cutter
● Flaring tool
● Knife
● Measuring tape
● Reamer
● Hole core drill
● Spanner(17,19 and 26mm)
● Gas leakage detector or
soap-and-water solution
● 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.
Power Source
● Before inserting power plug into receptacle, check the voltage without fail.
corresponding name plate.
Outdoor Unit
The power source is the same as the
● 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.
● 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.
● Place, where a distance marked
is available as illustrated in the above figure.
Drawing for the installation of indoor and outdoor units
The models adopt HFC free refrigerant R410A
Attention must be paid to
the rising up of drain hose
more than 5cm
Optional parts for piping
Non-adhesive tape
Adhesive tape
A
B
G
more than
10cm
Saddle (L.S) with screws
C
Connecting electric cable
for indoor and outdoor
Drain hose
D
E
F
Heating insulating material
Piping hole cover
G
Arrangement of piping
directions
more than 10cm
F
Rear left
Floor fixing dimensions of the
A
Rear
Left
outdoor unit (Unit:mm)
right
Right
C
Below
113.5
113.5
583
more than
10cm
more than 10cm
Fixing of outdoor unit
● Fix the unit to concrete or block
with bolts (10mm) and nuts firmly
and horizontally.
A
● The marks from
to
G
in the figure are the
parts numbers.
● 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.
The distance between
the indoor unit and the
floor should be more
than 2m.
●
D
E
more than
60cm
more than15cm
Please be subject to the actual product purchased , the above picture is just for your reference.
Read this manual before installation
Explain sufficiently the operating means to the user according to this manual
NO.0010506358
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Outdoor unit
1
Installation of Outdoor Unit
outdoor units
Install according to Drawing for the installation of indoor and
2
Connection of pipes
● To bend a pipe, give the roundness as large as possible not to crush the pipe ,
Indoor unit
mm or longer.
POWER
and the bending radius should be 30 to 40
● Connecting the pipe of gas side first makes working easier.
● The connection pipe is specialized for R410A.
Outdoor unit
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Half union
Flare nut
3G2.5mm2
Power cable:
Connecting wiring:
Pipe Diameter(ǿ)
Liquid side6.35mm(1/4")
Liquid/Gas side9.52mm(3/8")
Gas side 12.7mm(1/2")
Gas side 15.88mm(5/8")
Fastening torque
18N.m
6G0.75mm
42 N.m
/R2
HSU-22HEA03
55N.m
HSU-22HRA03/R2
Spanner
Torque wrench
60 N.m
Be careful that matters, such as wastes of sands, etc. shall not enter the pipe.
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,
be conducted by profes-
according to 20 g/m. But the charge of refrigerant must
sional air conditioner engineer. Before adding additional refrigerant, perform air
purging from the refrigerant pipes and indoor unit using a vacuum pump,then
charge additional refrigerant.
CAUTION
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
B
B
A
Power cable: ≥3G2.5mm2
Connecting wiring:
Indoor unit
A
≥3G1.5mm 2
(For: L N )+2x0.75mm2
Outdoor unit
Amax=15m
Max.Elevation:
●
●
HSU-18RM03/R2
HSU-18HEA03/R2-I
HSU-18HRA103/R2
In case the elevation A is more
than 5m, oil trap shoud be
installed every 5~7m
Outdoor unit
●
●
Max. Length:
Bmax=25m
Oil trap
B
In case the pipe length B is
more than 7m, the refrigerant
should be charged, according
to 20 g/m.
Indoor unit
A
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
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.
type of
3
Connection
● Use the same method on indoor unit. Loosen the screws on
terminal block and
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
insert the plugs fully into terminal block, then tighten the screws.
than 3mm.
● 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
5
Attaching Drain-Elbow
● If the drain-elbow is used,
please attach it as figure. (Note:
Only for heat pump unit.)
Purging Method:To use vacuum pump
1. Detach the service port’s cap of
3-way valve, the valve rod’s cap for 2-way valve
and 3-way’s, connect the service port into the projection of charge hose (Iow)
for gaugemanifold. Then connect the projection of charge hose (center) for gau-
gemanifold into vacuum pump.
gaugemanifold, operate vacuum pump. If the scale-
2.Open the handle at Iow in
moves of gause (Iow) reach vacuum condition in a moment, check 1. again.
Vacuumize for over 15min.And check the level gauge which should read -0.1MPa
3.
completion of vacuumizing, close the
pressure side. After the
(76 cm Hg) at Iow
handle ‘Lo’ in gaugemanifold and stop the operation of the vacuum pump. Check
condition of the scale and hold it for 1-2min. If the scale-moves back in spite of
tightening, make flaring work again, the return to the beginning of 3 .
anticlockwise 90 degrees.
4.Open the valve rod for the 2-way valve to an angle of
3
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inspection of gas leakage.
After 6 seconds, close the 2-way valve and make the
5. No gas leakage?
Correct
Incorrect
In case of gas leakage, tighten parts of pipe connection. If
leakage stops, then proceed 6. steps
Lean
Damage of flare Crack
Partial Too outside
from the service
If it does not stop gas leakage, discharge whole refrigerants
port. After flaring work again and vacuumize, fill up prescribed
refrigerant from the gas cylinder.
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.
●
●
open 2-way valve and 3-way. Turn
6.Detach the charge hose
from the service port,
the valve rod anticlockwiseuntil hitting lightly.
port’s cap, the valve rod’s cap for 2-way
leakage, turn the service
valve and 3-way’s a little more
To prevent the gas
7.
Less than
5cm
than the point where the torque increases suddenly.
After attaching the each caps, check the gas leakage around the caps.
8.
It becomes
The end is imm-
ersed in water.
It waves.
The gap with the There is the bad
ground is too smal smell from a ditch
high midway.
Step 1.
Step 2.
Open
2-way valve Liquid Side
3-way valve Gas Side
confirm that drainage
Please pour water in the drain pan of the indoor unit, and
is carried out surely to outdoor.
In case that the attached drain hose is in a room, please
it without fail.
●
●
apply heat insulation to
Gaugemanifold(for
R410A)
Anti countercurrent joint
Step 3.
Close
■Refrigerant charge label
Vacuum pump(for R410A)
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol
Tube(for R410A)
Step 4.
A
Step 6.
2-way valve
3-way valve
2-way valve
3-way valve
1=
2=
kg
kg
R410A
B
C
2
Open 90O
1
1+2=
kg
2-way valve
3-way valve
D
Step 7.
3-way valve
2-way valve
F
E
This product contains fluorinated greenhouse gases covered by
the Kyoto Protocol. Do not vent into the atmosphere.
Refrigerant type:R410A
Valve rod cap
Valve rod cap
GWP* value:1975
Service port cap
GWP=global warming potential
Please fill in with indelible ink,
• 1
• 2
the factory refrigerant charge of the product
the additional refrigerant amount charged in the field and
CAUTION
●
●
If the refrigerant of the air conditioner leaks, it is necessary to discharge all the
• 1+2 the total refrigerant charge
refrigerant. Vacuumize first, then
charge the liquid refrigerant into air conditio-
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
ner according to the amount marked on the name plate.
Please do not let other cooling medium, except specified one (R410A), or air
enter into the cooling circulation system. Otherwise, there will be abnormal
high pressure in the system to make it crack and lead to personal injuries.
B factory refrigerant charge of the product: see unit name plate
C
D
E
F
additional refrigerant amount charged in the field
total refrigerant charge
outdoor unit
1
Power Source Installation
●
The power source must be exclusively used for air
conditioner. (Over I0A)
refrigerant cylinder and manifold for charging
please install an ea-
● In the case of installing an air conditioner in a moist place,
rth leakage breaker.
●
as possible.
For installation in other places, use a circuit breaker as far
■Check for Installation and Test Run
2
Cutting and Flaring Work of Piping
Please kindly explain to our customers how to operate
through the instruction manual.
■
● Pipe cutting is carried out with a pipe cutter and burs must be removed.
● After inserting the flare nut, flaring work is carried out.
Check Items for Test Run
Flare tool for R410A
Clutch-type
Conventional flare tool
Put check mark
in boxes
clutch-type(Rigid-type) Wing-nut type (Imperial-type)
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?
A
0~0.5mm
1.0~1.5mm
1.Cut pipe
1.5~2.0mm
2.Remove burs
Flare tooling die
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?
Is the lamp normally lighting?
3.Insert the flare nut
4.Flare pipe
Are cooling and heating (when in heat pump) performed normally?
Is the operation of room temperature regulator normal?
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