Midea INVERTER SPLIT TYPE ROOM AIR CONDITIONER User manual

Before using your air conditioner, please read
this manual carefully and keep it for future reference.
ROOM AIR CONDITIONER
Please read this installation manual completely
before installing the product.
If the power cord is damaged, replacement work
shall be performed by authorised personnel only.
Installation work must be performed in accordance
with the national wiring Standards by authorised
personnel only.
Contact an authorised service technician for
repair, maintenance or installation of this unit.
INVERTER SPLIT TYPE
-

1
CONTENTS
SAFETY PRECAUTIONS
Warning ...........................................................................................................................................2
Caution ............................................................................................................................................2
INSTALLATION INSTRUCTIONS
Selecting installation place...............................................................................................................3
Accessories .....................................................................................................................................4
Indoor unit installation......................................................................................................................5
Outdoor unit installation ..................................................................................................................7
REFRIGERANT PIPE CONNECTION
Refrigerant pipe connection ............................................................................................................8
Inside you will find many helpful hints on how to install and test the air conditioner properly.
Contact an authorised service technician for repair or maintenance of this unit.
Contact an authorised installer for installation of this unit.
This appliance is not intended for use by persons(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
If the power cord is to be replaced, replacement work shall be performed by authorised personnel only.
Installation work must be performed in accordance with the national wiring Standards by authorised
personnel only.
CAUTION
Read This Manual
ELECTRICAL WORK
Electrical work .................. .............................................................................................................9
TEST RUNNING
Test running ..................................................................................................................................13
AIR PURGING
Air purging with vacuum pump ......................................................................................................11
Safety and leakage check .............................................................................................................13

2
SAFETY PRECAUTIONS
WARNING
Read the follow SAFETY PRECAUTIONS carefully before installation.
Electrical work must be installed by a licensed electrician. Be sure to use the correct rating
of the power plug and main circuit for the model to be installed.
Incorrect installation due to ignoring of the instruction will cause harm or damage.
The seriousness is classified by the following indications.
This symbol indicates the possibility of death or serious injury.
The items to be followed are classified by the symbols:
Symbol with background white denotes item that is PROHIBITED from doing.
CAUTION
This symbol indicates the possibility of injury or damage to property.
WARNING
1) Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water
leakage, electrical shock fire.
2) Install according to this installation instructions strictly. If installation is defective, it will cause water
leakage, electrical shock fire.
3) Use the attached accessories parts and specified parts for installation. otherwise, it will cause the set to fall,
water leakage, electrical shock fire.
4) Install at a strong and firm location which is able to withstand the set s weight. If the strength is not enough
or installation is not properly done, the set will drop and cause injury.
,
5) For electrical work, follow the local national wiring standard, regulation and this installation instructions. An
independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found
in electrical work, it will cause electrical shock fire.
6) Use the specified cable and connect tightly and clamp the cable so that no external force will be acted on
the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.
7) Wiring routing must be properly arranged so that control board cover is fixed properly. If control board cover
is not fixed perfectly, it will cause heat-up at connection point of terminal, fire or electrical shock.
8) When carrying out piping connection, take care not to let air substances other than the specified
refrigerant go into refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure
in the refrigeration cycle, explosion and injury.
9) Do not modify the length of the power supply cord or use of extension cord, and do not share the
single outlet with other electrical appliances. Otherwise, it will cause fire or electrical shock.
CAUTION
1) This equipment must be earthed and installed with earth leakage current breaker. It may cause electrical
shock if grounding is not perfect.
2) Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and
accumulates at surrounding of the unit, it may cause fire.
3) Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water
may enter the room and damage the furniture.

3
INSTALLATION INSTRUCTIONS
Selecting installation place
Select an installation location which is rigid and strong enough to support or hold the unit, and select a
location for easy maintenance. Read completely, then follow step by step.
Indoor unit
Do not expose the indoor unit to heat or steam.
Select a place where there are no obstacles in front
or around the unit.
Make sure that condensation drainage can be
conveniently routed away.
Do not install near a doorway.
Ensure the spaces indicated by arrows from the
wall ceiling or other obstacles.
A place where noise prevention is taken into consideration.
A place 1m or more to TV or radio instrument.
A place where air circulation in the room is good.
There should not be any direct sunlight. Otherwise, the sun
will fade the plastic cabinet and affect its appearance. If
unavoidable, sunlight prevention should be taken into considenation.
Outdoor unit
If an awning is built over the outdoor unit to prevent
direct sunlight or rain exposure, make sure that heat
radiation from the condenser is not restricted.
Keep the spaces indicated by arrows from wall or
other obstacles.
Do not place animals and plants in the path of the
air inlet or outlet.
Take the air conditioner weight into account and
select a place where noise, vibration and hot air
discharged will not be an issue.
Do not install in a place full of machine oil or sulfide
gas such as hot-spring resort.
Do not install in a saline place such as coast.
Do not install in a place where there are high frequency
machines such as wireless equipment, welding
machine or medical facility.
If the outdoor unit is installed on a roof structure, be sure to level the unit.
Ensure the roof structure and anchoring method are adequate for the unit location.
Consult local codes regarding rooftop mounting.
Rooftop installation:
Level gauge
Screwdriver
Electric drill,Hole core drill (φ65mm)
Flaring tool set
Specified torque wrenches: 1.8kgf.m,
4.2kgf.m, 5.5kgf.m, 6.6kgf.m
(different depending on model No.)
Spanner (half union)
Tools needed for installation:
Hexagonal wrench (4mm)
Gas-leak detector
Vacuum pump
Gauge manifold
Users manual
Thermometer
Multimeter
Pipe cutter
Measuring tape
Fig.1
More than 30cm
More than 60cm
More than 30cm
More than 200cm
Fig.2
More than 2.4m
(from the floor)
More than 15cm
(to the ceiling)
More than
12cm
More than
12cm
Front
Left
Right
Back

4
INSTALLATION INSTRUCTIONS
Note: Except the above parts provided, the other parts needed during installation you must
purchase.
●This illustration is for explanation purposes only.
● Copper lines must be insulated independently
Use a stud finder to locate studs to prevent
unnecessary damage to the wall.
A minimum pipe run of 3 metres is required
to minimise vibration & excessive noise.
Two of the A, B and C directions should be
free from obstructions.
CAUTION
.
Fig.3
8
9
7
>2.4m
12cm above
12cm above
15cm above
1
2
3
Loop the
connective
cable.
C
A
60cm above
60cm above
30cm above
Air Filter
Air Outlet
30cm above
Wrapping tape
B
200cm above
Additional drain pipe
Accessories
Parts you must purchase.
Consult the dealer about
the pipe size.
6.35
9.53
12.7
9.53
16
Self-tapping Screw B ST2.9X10
Remote controller
Installation Plate
Name of Accessories
Self-tapping Screw A ST3.9X25
Seal(For cooling & heating modles only)
Drain Joint(For cooling & heating modles only)
Connecting
pipe
Assembly
Liquid side
Clip Anchor
Number Q ty’
Gas side
Remote controller holder
11
25-8(depending on models)
5-8(depending on models)
3
41
51
6
71
82
91
。
( C)
TEMP
AUTO
COOL
DRY
HEAT
FAN
HIGH
MED
LOW
MODE
FAN SPEED
TIMER ON
SLEEP
ON/OFF
TIMER OFF
AIR
DIRECTION
RESET LOCK
SET TEMPERATURE
SWING
LED
DISPLAY
TURBO
Optional
parts

5
INSTALLATION INSTRUCTIONS
Fig.4
Wall
Indoor Outdoor
5-7mm
Fig.6
Fig.5
Indoor unit installation
2. Drill a hole in the wall
Note:
1. Fit the Installation Plate
1. Fit the installation plate h o r i z o n t a l l y
on structural parts of the wal l w i t h
spaces around the installat i o n p l a t e .
2. If the wall is made of brick, conc r e t e
or the like, drill eight (8) 5mm di a m e t e r
holes in the wall.Insert Clip a n c h o r f o r
appropriate mounting scre w s .
3. Fit the installation plate o n t h e w a l l
with eight (8) type ?A? screws.
Fit the Installation Plate and drill
holes in the wall according to the
wall structure and corresponding
mounting points on the installation
plate. The installation plate provided
with the machine is differrent according
to the models.
(Dimensions are in ?mm? unless
otherwise stated)
1. Determine hole positions according
to the diagramdetailed in Fig.5. Drill
one (1) hole (φ65mm) slanting slightly
to outdoor side.
2. Always use wall hole conduit when
drilling metal grid, metal plate or the like.
Correct orientation
of Installation Plate
Model C
Model D
150mm or more to ceiling
Indoor unit outline Installation plate
292
Right rear side
refrigerant
pipe hole φ65
Left rear side
refrigerant
pipe hole φ65
120mm or
more to wall
120mm or
more to wall
920
45
185
150
45
A
45
B
Right rear side
refrigerant
pipe hole φ65
Installation plate
Indoor unit outline
Left rear side
refrigerant
pipe hole φ65
150mm or more to ceiling
120mm or
more to wall
120mm or
more to wall
Model A (A: 710, B: 250, C:100, D: 110)
Model B (A: 790, B:265, C:100, D: 150)
90
45
CD
120mm or more
from the wall
120mm or more
from the wall
45
150mm or more from the ceiling
Indoor Unit Outline
Hooked Part
100
65
65
120
45

6
INSTALLATION INSTRUCTIONS
1. For the left-hand and right-hand piping,
remove the pipe cover from the side
panel.
2. For the rear-right-hand and rear-left-hand
piping, install the piping as shown.
3. Fix the end of the connective pipe. (Refer
to Tightening Connection in
REFRIGERANT PIPING CONNECTION)
Connective pipe installation
1. Pass the piping through the hole in the
wall.
2. Put the upper claw at the back of the
indoor unit on the upper hook of the
installation plate, move the indoor unit
from side to side to see that it is securely
hooked (see Fig.10 & Fig.11).
3. Piping can easily be made by lifting the
indoor unit with a cushioning material
between the indoor unit and the wall.
Get it out after finish piping.
4. Push the lower part of the indoor unit up
on the wall, then move the indoor unit
from side to side, up and down to check
if it is hooked securely.
4. Indoor unit installation
2. When connecting extension drain hose,
insulate the connecting part of extension
drain hose with a shield pipe, do not let
the drain hose slack.
Right-hand piping
Left-hand piping
Rear-right piping
Rear-left piping
Fig.8 Fig.9
Fig.11
Upper Hook
Lower Hook
Cushioning
material
Fig.10
Fig.7
Do not block water flow by a rise.
Do not put the end of
drain hose into water.
3. Connective Pipe and Drainage
Installation
1. Run the drain hose sloping downward.
Do not install the drain hose as
illustrated in Fig.7.
Drainage

7
INSTALLATION INSTRUCTIONS
5. Piping and wrapping
Bundle the tubing, connecting cable, and drain
hose with tape securely, evenly as shown in
Fig.12
Because the condensed water from rear of the
indoor unit is gathered in ponding box and is
piped out of room. Do not put anything else in
the box.
Indoor unit
Connective
pipe
Pipe room
Ponding box
Wrapping belt
Connective
cable
Drain hose
Fig.12
Connect the indoor unit first, then the
outdoor unit.
Do not allow the piping to let out from the
back of the indoor unit.
Be careful not to let the drain hose slack.
Heat insulated both of the auxiliary piping.
Be sure that the drain hose is located at
the lowest side of the bundle. Locating at
the upper side can cause drain pan to
overflow inside the unit.
Never intercross nor intertwist the power
wire with any other wiring.
Run the drain hose sloped downward to
drain out the condensed water smoothly.
CAUTION
Install the outdoor unit on a rigid base to
prevent increasing noise level and vibration.
Determine the air outlet direction where the
discharged air is not blocked. In the case that
the installation place is exposed to strong wind
such as a seaside, make sure the fan operating
properly by putting the unit lengthwise along the
wall or using a dust or shield plates.
Specially in windy area, install the unit to prev-
ent the admission of wind. If need suspending
installation, the installation bracket should
accord with technique requirement in the
installation bracket diagram.
The installation wall should be solid brick,
concrete or the same intensity construction, or
actions to reinforce, damping supporting should
be taken. The connection between bracket and
wall, bracket and the air conditioner should be
firm, stable and reliable.
Be sure there is no obstacle which block
radiating air.
Strong
wind
Fig.13
.
.
.
..
.
.
.
.
.
.
.
.
.
.
.
.
.
..
.
.
..
.
.
.
.
.
. .
.
Outdoor unit installation
Outdoor installation precaution

8
REFRIGERANT PIPE CONNECTION
Settlement of outdoor unit
Anchor the outdoor unit with a bolt and
nut φ10 or φ8 tightly and horizontally
on a concrete or rigid mount.
A
B
Air inlet
Air outlet
Air inlet
Fig.14
Refrigerant pipe connection
Oblique
。
90 Roughness
Burr
Main cause for refrigerant leakage
is due to defect in the flaring work.
Carry out correct flaring work
using the following procedure:
A: Cut the pipes and the cable.
1. Use the piping kit accessory or pipes
purchased locally.
2. Measure the distance between the indoor
and the outdoor unit.
3. Cut the pipes a little longer than the
measured distance.
4. Cut the cable 1.5m longer than the pipe
length.
1. Flaring work
Fig.15
B: Burr removal
1. Completely remove all burrs from the cut
cross section of pipe/tube.
2. Put the end of the copper tube/pipe in a
downward direction as you remove burrs in
order to avoid dropping burrs into the tubing.
Pipe
Reamer
Point down
Fig.16
Fig.17
Outdoor unit dimension
mm(WxHxD)
A(mm) B(mm)
530 290
484
600
560
590
275
320
335
333
549 280
Mounting dimensions
780x540x250
760x590x275
670x540x250
775x545x310
840x700x320
895x860x330
Drain joint installation
Seal
Drain joint
Base pan hole of
outdoor unit
Seal
Drain pipe
(A)
(B)
For the drain joint with the seal(Fig.15 (A)), first
fit the seal onto the drain joint, then insert the
drain joint into the base pan hole of outdoor unit,
。
rotate 90 to securely assemble them. To install
drain joint as shown in Fig.15 (B), insert the drain
joint into the base pan hole of outdoor unit until it
remains fixed with a clicking sound. Connecting
the drain joint with an extension drain hose (Locally
purchased), in case of the water draining off the
outdoor unit during the heating mode.
NOTE: The drain joint is slightly different
according to the different outdoor unit.

9
ELECTRICAL WORK
Bar
Copper pipe
Clamp handle Red arrow mark
Cone
Yoke
Handle
Bar
"A"
C: Putting nut on
Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube
having completed burr removal.(not possible
to put them on after flaring work)
Flare nut
Copper tube
Fig.18
Fig.19
D: Flaring work
Firmly hold copper pipe in a die in the
dimension shown in the table below.
Caution
Align the center of the pipes.
Sufficiently tighten the flare
nut with fingers, and then tighten
it with a spanner and torque wrench
as shown in Fig.20 & 21.
Tightening Connection
Excessive torque can break nut
depending on installation conditions.
Fig.21
Indoor unit tubing Flare nut Pipings
Fig.20
Electric safety regulations for the initial Installation
1. If there is serious safety problem about the power supply, the technicians should refuse
to install the air conditioner and explain to the client until the problem is solved.
2. Power voltage should be in the range of 90%~110%of rated voltage.
3. The creepage protector and main power switch with a 1.5 times capacity of Max. Current
of the unit should be installed in power circuit.
4. Ensure the air conditioner is grounded well.
7. An individual branch circuit and single receptacle used only for this air conditioner must be
available. See the following table for suggested wire sizes and fuse specifications:
5. According to the attached Electrical Connection Diagram located on the panel of the outdoor
unit to connect the wire.
6. All wiring must comply with local and national electrical codes and be installed
by qualified and skilled electricians.
Electrical work
Outer diam.
(mm)
A(mm)
Max. Min.
6.35 1.3 0.7
9.52
1.6 1.0
12.7
1.8 1.0
12.7
16
1.8
2.4
1.0
2.2
Outer
diam. Tightening torque(N.cm) Additional tightening
torque(N.cm)
6.35
12.7
16
9.52
1500
(153kgf.cm) 1600 (163kgf.cm)
3500
(357kgf.cm)
3600
(367kgf.cm)
2500
(255kgf.cm)
2600
(265kgf.cm)
4500
(459kgf.cm)
4700
(479kgf.cm)

10
ELECTRICAL WORK
Minimum norminal cross-sectional
area of conductors:
Rated current
of appliance
(A)
>3 and <6
>6 and <10
>10 and <16
>16 and <25
Nominal cross-sectional
area
2
(mm )
0.75
1
1.5
2.5
NOTE: The cable size and the current of the fuse
or switch are determined by the maximum current
indicated on the nameplate which located on the
side panel of the unit. Please refer to the nameplate
before selecting the cable, fuse and switch.
Connect the cable to the outdoor unit
Connect the cable to the indoor unit
NOTE: Before performing any electrical
work, turn off the main power to the system.
,
1. The inside and outside connecting cable can
be connected without removing the front grille.
2. The indoor power cord type is H05VV-F or
H05V2V2-F, the outdoor power cord and
interconnected cord type is H07RN-F.
3. Lift the indoor unit panel up, remove the
electrical box cover by loosening the screw
as shown in Fig.22.
4. Ensure the colour of wires of outdoor unit
and the terminal Nos. are the same to the
indoor s respectively.
5. Wrap those cables not connected with
terminals with insulation tapes, so that they
will not touch any electrical components.
Secure the cable onto the control board with
the cord clamp.
,
Terminal block of indoor unit
Fig.22
To outdoor unit
To outdoor unit
1. Remove the cover control from the unit by
loosening the 3 screws. See Fig.23.
2. Dismount caps on the conduit panel.
3. Temporarily mount the conduit tubes(not included)
on the conduit panel.
4. Properly connect both the power supply and low
voltage lines to the corresponding terminals on
the terminal block.
5. Ground the unit in accordance with local codes.
6. Be sure to size each wire allowing several inches
longer than the required length for wiring.
7. Use lock nuts to secure the conduit tubes.
G
Cover control
Over 1 3/5in.(40mm)
Terminal block
Conduit panel
Connecting
cable
Power supply
cord
Outdoor unit
Fig.23a
L N S
L1 L2 S
or
Electrical box
cover
Front Panel

11
ELECTRICAL WORK
Warning
Be sure to comply with local codes while
running the wire from the indoor unit to
the outdoor unit.
Every wire must be connected firmly.
No wire should be allowed to touch
refrigerant tubing, the compressor
or any moving parts.
Loose wiring may cause the terminal to
overheat or result in unit malfunction.
A fire hazard may also exit. Therefore,
be sure all wiring is tightly connected.
Disconnecting means must be provided
and shall be located within sight from and
readily accessible from the air conditioner.
Connecting cable with conduit shall go
through the hole of the conduit panel.
Note : To prevent wires loosening or leaving
the Cord Clamp, please select proper cord
diameter to fill the holes on the cord clamp.
Power supply
cord
Power supply
1φ 208-230V~60Hz
Special branch circuit breaker
(Fuse/Breaker capacity:20A)
Terminal block of outdoor unit
To indoor unit
To indoor unit
To indoor unit
To power supply
To power supply
To power supply
Fig.23b
L1 L2 S L1 L2
1(L) 2(N) S L N
L1 L2 S L1 L2
(1)
(2)
(3)

After the confirmation of the above conditions, prepare the wiring as follows:
1) Never fail to have an individual power circuit specifically for the air conditioner. As for
the method of wiring, be guided by the circuit diagram posted on the inside of control
cover.
2) The screw which fasten the wiring in the casing of electrical fittings are liable to come
loose from vibrations to which the unit is subjected during the course of
transportation. Check them and make sure that they are all tightly fastened. (If they
are loose, it could cause burn-out of the wires.)
3) Specification of power source.
4) Confirm that electrical capacity is sufficient.
5) See to that the starting voltage is maintained at more than 90 percent of the rated
voltage marked on the name plate.
6) Confirm that the cable thickness is as specified in the power source specification.
7) Always install an earth leakage circuit breaker in a wet or moist area.
8) The following would be caused by voltage drop.
?
Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the
normal function of the overload.
9) The means for disconnection from a power supply shall be incorporated in the fixed
wiring and have an air gap contact separation of at least 3mm in each active(phase)
conductors.
CAUTION
CAUTION
CAUTION
CAUTION
Air and moisture in the refrigerant system have undesirable effects as indicated below:
● Pressure in the system rises.
● Operating current rises.
● Cooling or heating efficiency drops.
● Moisture in the refrigerant circuit may freeze and block capillary tubing.
● Water may lead to corrosion of parts in the refrigeration system.
Therefore, the indoor unit and tubing between the indoor and outdoor unit must be leak tested
and evacuated to remove any noncondensables and moisture from the system.
Air purging with vacuum pump
●Preparation
Check that each tube(both liquid and gas side tubes) between the indoor and outdoor units
have been properly connected and all wiring for the test run has been completed. Remove
the service valve caps from both the gas and the liquid side on the outdoor unit. Note that
both the liquid and the gas side service valves on the outdoor unit are kept closed at this
stage.
●Pipe length and refrigerant amount:
AIR PURGING
Air purging
12
Connective
pipe length
Less than 5m
More than 5m
Air purging
method
Use vacuum
pump.
Use vacuum
pump.
Additional amount of refrigerant to be charged
R22: (Pipe length-5)x30g/m
R410A: (Pipe length-5)x20g/m
Liquid side: 6.35
R22: (Pipe length-5)x60g/m
R410A: (Pipe length-5)x40g/m
Liquid side: 9.53

13
AIR PURGING
When relocate the unit to another place,
perform evacuation using vacuum pump.
Make sure the refrigerant added into the air
conditioner is liquid form in any case.
(Not applicable to the units adopt freon R22 )
Open the valve stem until it hits against the
stopper. Do not try to open it further.
Securely tighten the valve stem cap with a
spanner or the like.
Valve stem cap tightening torque (See
Tightening torque table in previous page ).
Outdoor
unit
Indoor
unit
Refrigerant
Flare nut
Stopper
Cap
Valve body
Packed valve
Half union
Gas side
Liquid side
AC
D
B
Valve stem
Fig.24
Fig.25
When Using the Vacuum Pump
(For method of using a manifold valve, refer
to its operation manual.)
1. Completely tighten the flare nuts, A, B, C, D,
connect the manifold valve charge hose to a
charge port of the low-pressure valve on the
gas pipe side.
2. Connect the charge hose connection to the
vacuum pump.
3. Fully open the handle Lo of the manifold valve.
4. Operate the vacuum pump to evacuate. After
starting evacuation, slightly loose theflare nut
of the Lo valve on the gas pipe side and
check that the air is entering(Operation noise
of the vacuum pump changes and a
compound meter indicates 0 instead of minus)
5. After the evacuation is complete, fully close
the handle Lo of the manifold valve and stop
the operation of the vacuum pump. Make
evacuation for 15 minutes or more and check
that the compound meter indicates
5
-76cmHg (-1x10 Pa).
6. Turn the stem of the packed valve B about
o
45 counterclockwise for 6~7 seconds after
the gas coming out, then tighten the flare nut
again. Make sure the pressure display in the
pressure indicator is a little higher than the
atmosphere pressure.
7. Remove the charge hose from the Low
pressure charge hose.
8. Fully open the packed valve stems B and A.
9. Securely tighten the cap of the packed valve.
Manifold valve
Compound meter
-76cmHg
Handle Lo Handle Hi
Charge hose Charge hose
Vacuum pump
Pressure gauge
Low pressure valve
Fig.26
Caution in handling the packed valve

Perform the electric safe check after completing installation:
1. Grounding work
After finishing grounding work, measure the grounding resistance by visual detection and
grounding resistance tester. Make sure the grounding resistance is less than 4Ω.
2. Electrical leakage check (performing during test running)
During test operation after finishing installation, the serviceman can use the electroprobe
and multimeter to perform the electrical leakage check. Turn off the unit immediately if
leakage happens. Check and find out the solution ways till the unit operate properly.
A: Lo packed valve B: Hi packed valve
C and D are ends of indoor unit connection.
CAUTION
Indoor unit
check point
D
B
C
A
Outdoor unit
check point
Cover
Fig.27
● Electrical safety check
● Gas leak check
1. Soap water method:
Apply a soap water or a liquid neutral detergent
on the indoor unit connection or outdoor unit
connections by a soft brush to check for leakage
of the connecting points of th piping. If bubbles
come out, the pipes have leakage.
2. Leak detector
Use the leak detector to check for leakage.
Test running
Safety and leakage check
14
TEST RUNNING
Manual control
button
AUTO/COOL
Perform test operation after completing gas leak check at the flare nut connections and
electrical safety check.
Check that all tubing and wiring have been properly connected.
Check that the gas and liquid side service valves are fully open.
1. Connect the power, press the ON/OFF button on the remote controller to turn the unit on.
2. Use the MODE button to select COOL, HEAT, AUTO and FAN to check if all the functions
works well.
O
3. When the ambient temperature is too low(lower than 17 C), the unit cannot be controlled by
the remote controller to run at cooling mode, manual operation can be taken. Manual
operation is used only when the remote controller is disable or maintenance necessary.
Hold the panel sides and lift the panel up to an angle until it remains fixed with a clicking
sound.
Press the Manual control button to select the AUTO or COOL, the unit will operate under
Forced AUTO or COOL mode(see User Manual for details).
4. The test operation should last about 30 minutes.

CS120I-BP9A1(LH)
202000192327
20110613
The design and specifications are subject to change without prior notice for product
improvement. Consult with the sales agency or manufacturer for details.