Haier MRV 09 Series User manual

AE182FCAKA
AE212FCAKA
AE122FCAKA
AE142FCAKA
AE072FCAKA
AE092FCAKA AE242FCAKA
0010573331
H-MRV
Ceiling Concealed Type Room Air Conditioner
CEILING CONCEALED TYPE AIR CONDITIONER
SERIES 09~21 MODEL Before Application
Cautions
Part Description
Important Points of Safety
Maintenance
Trouble Shooting
When Fault Occurs
Notice to Users
Indoor Unit Installation
Installation Precautions
Installation Procedure
Installation Check and Trial Run
1
2
3-5
6-7
8
9
10-11
12-17
18
Contents
SERIES 07 MODEL
SERIES 24 MODEL
INDOOR UNIT
OPERATION & INSTALLATION
MANUAL
Please read this manual carefully before use.
Please keep it attentively for future use.
No.

For the purpose of the safety,the air conditioner
must be properly grounded in accordance
with specifications.
Always remember to unplug the air
conditioner before openning inlet grill. Never
unplug your air conditioner by pulling on
the power cord. Always grip plug firmly and
pull straight out from the outlet.
All electrical repairs must be carried out
by qualified electricians. Inadequate repairs
may result in a major source of danger for
the user of the air conditioner.
Do not damage any parts of the air
conditioner that carry refrigerant by piercing
or performating the air conditioner's tubes
with sharp or pointed items , crushing or
twisting any tubes , or scraping the coatings
off the surfaces. If the refrigerant spurts
out and gets into eyes , it may result in
serious eye injuries.
Cautions
1
The indoor unit installation height is at
least 2.5m.
Disposal of the old air conditioner
Before disposing an old air conditioner that
goes out of use, please make sure it's
inoperative and safe. Unplug the air
conditioner in order to avoid the risk of child
entrapment.
It must be noticed that air conditioner
system contains refrigerants, which require
specialized waste disposal. The valuable
materials contained in an air conditioner can
be recycled. Contact your local waste
disposal center for proper disposal of an
old air conditioner and contact your local
authority or your dealer if you have any
question. Please ensure that the pipework
of your air conditioner does not get damaged
prior to being picked up by the relevant
waste disposal center, and contribute to
environmental awareness by insisting on
an appropriate, anti-pollution method of
disposal.
Disposal of the packaging of your
new air conditioner
All the packaging materials employed in the
package of your new air conditioner may be
disposed without any danger to the
environment.
The cardboard box may be broken or cut into
smaller pieces and given to a waste paper
disposal service. The wrapping bag made of
polyethylene and the polyethylene foam pads
contain no fluorochloric hydrocarbon.
All these valuable materials may be taken
to a waste collecting center and used again
after adequate recycling.
Consult your local authorities for the name
and address of the waste materials
collecting centers and waste paper disposal
services nearest to your house.
Safety Instructions and Warnings
Before starting the air conditioner, read the
information given in the User's Guide
carefully. The User's Guide contains very
important observations relating to the
assembly , operation and maintenance of
the air conditioner.
The manufacturer does not accept
responsibility for any damages that may
arise due to non-observation of the following
instruction.
Damaged air conditioners are not to be
put into operation. In case of doubt, consult
your supplier.
Use of the air conditioner is to be carried
out in strict compliance with the relative
instructions set forth in the User's Guide.
Installation shall be done by professional
people, don't install unit by yourself.
Do not obstruct or cover the ventilation
grille of the air conditioner. Do not put
fingers or any other things into the
inlet/outlet and swing louver.
Do not allow children to play with the air
conditioner. In no case should children be
allowed to sit on the outdoor unit.

2
Series 09-21 have the Return air box (see the following picture) when shipping from the factory and
they are back-side return air. During the installation, also can be changed to Down-side Return air
according to the user's need.
D
Series 09~21
Series 24
Series 07

Important Points of Safety
The following four important points of safety and suggestions should be paid great attention:
Warning: Misuse may cause fatal result such as death or serious injury etc.
Attention: Misuse may cause human injury or damage of machine, in some case
fatal results.
: Content marked with this “forbidden” sign should be absolutely forbid-
den, otherwise may cause damage of machine and human injury of the
user.
: Content marked with this “compulsory” sign should be executed comp-
ulsively, otherwise may cause damage of machine and human injury of
the user.
Comply with the following important points of safety.
Put these important points of attention and suggestions nearby and convenient for reference in need.
Hand over this instruction manual to new user if you resell this machine.
Warning for installation
Entrusted Installation
Installation of the machine should
be entrusted to certified person of
after service. Unauthorized install-
ation may cause water leakage,
electric shock or fire hazard for
improper operation.
To prevent leakage of refrigerant,
let certified person of after service
do it.
Leakage of refrigerant over certain
consistence may result in shortage
of oxygen. Enough precautions
MUST be done to avoid oxygen
shortage in case of refrigerant lea-
king if the room where the air-
conditioner is installed is small.
The power supply must be fitted with
earth line to ensure valid earthing of
the air-conditioner. No or incomplete
earthing connection may cause the
risk of electric shock.
!
!
!
!
!
Test run
After indoor units are installed,all
cassettes hinded models should be
tested.when the units are confirmed
to be normal,other fitments can be
installed. !
!
3
Warning
!

Important Points of Safety
Warning
Avoid your body being blown
directly by cold wind for long
period, otherwise your health
may be affected.
Don’t extend your fingers or
any other article into the inlet
or outlet during operation of
the machine for touching re-
volving fans may cause human
injury or damage of machine.
If something abnormal (e.g.: burnt
smell etc.) occurs, stop running the
machine, shut down the manual
power switch and contact after
service. Continuous operation in
disorder may cause fire hazard or
electric shock etc.
Warning for use Warning for move and repair
When you have to disassemble
and reinstall the machine, entrust
it to after service. Improper inst-
allation may cause fire hazard,
electric shock or damage of ma-
chine.
Unauthorized alteration or repair
work is strictly forbidden. Impr-
oper alteration or maintenance
may cause fire hazard, electric
shock or water leakage. Repair
work should be entrusted to cert-
ified person of after service.
Attention
Attention points for installation
Ensure the drainage hose work
normally during installation.
Improper installation of drainage
can cause water leakage and
damp articles.
DO NOT install the machine in
place where flammable gas
releases easily to avoid fire
hazard.
Ensure electric leakage breaker
being installed. Electric leakage
breaker MUST be installed,
otherwise electric shock may be
caused.
If the power supply cord is
damaged, call a certified
electrician of the manufacturer
or other maintenance department
to replace it.
! !
!
!
4
!
!

5
Important Points of Safety
Attention
Attention points for use
lEnsure ventilation of the room
if the machine is used with
burning facilities. Deficient
ventilation can cause oxygen
shortage.
lCheck whether installation
bench of the machine is
damaged after a long period
of use. Machine on damaged
bench may fall down and cause
human injury or other damage.
lIn place where winds produced
by the machine can reach, don’t
lay any animals or plants which
may be hurt otherwise.
l Don’t put vases containing water
or other else on the unit assembly.
Otherwise, the machine may be
immersed internally and result in
bad electric insulation causing
electric shock.
l The is machine CANNOT be
used for the purpose of prese-
rving food, animals, plants,
precision instruments and
artwork etc., which may be
destroyed otherwise.
l DON’T replace fuse with ma-
terial other than fuse of proper
capacity. Replacing fuse with
metal wire or copper etc. can
cause fire hazard or other faults.
l DON’T lay any burning facilities
in place where winds produced by
the machine can reach. Incomplete
combustion of burning facility may
be caused otherwise.
l DON’T clean the machine with
water. Electric shock may occur
otherwise.
l DON’T put flammable spray
articles nearby or spray them to
the machine. Fire hazard may
occur otherwise.
l DON’T operate switch with wet
hand. Electric shock may occur
otherwise.
l Stop operation and shut down
manual power switch before
cleaning and maintenance.
l The power supply MUST be of
rated voltage and connected with
special electrical supply circuit.
!

6
Trouble Shooting
The following cases are not troubles.
During operation,the air conditioner may
sometimes exhibit a sound of "clatter"or
"rumble". This is the common sound of
refrigerant flow but not a trouble.
A sound of "Pi-Pa"is generated.
Smells are given off.
During operation,mist or steam are
blown out.
During COOL operation,it automatically
changes to FAN mode.
The system couldnt be re-started immediately
after turning off.The unit can't start?
This is caused by the thermal expansion
or cold shrinkage of plastics.
Sometimes there are smells in the air flow
from the indoor unit. This is caused by the
smell of cigarettes or paint coatings inside
the unit.
During COOL or DRY operation, the unit
may blow out a thin mist. This is the con-
densate water mist caused by sudden co-
oling of the indoor air blown out from the
indoor unit.
In order to prevent frost accumulation on
the heat exchanger in the indoor unit,
sometimes it will automatically transfers
to FAN mode, but soon will return to
COOL mode.
This is due to the systems self-protection
function,which prevents it from restarting
in 3 min after stops.
Please wait
for 3 min.
"Hua-Hua"
Water flow sound is heard.

Trouble Shooting
ON
OFF
During DRY operation, there is no air
sent out or fan speed cant be changed.
In HEAT mode,the outdoor unit
generates water or steam. This occurs during removal of the frost (in defrosting operation) on the radiator
of outdoor unit.
Defrost operation
In HEAT mode,the indoor fan still
keeps running even the unit operation
stops.
After the unit stops, the indoor fan will
continue to run for a while to eliminate
residual heat.
Before asking for after-service to an authorized service center,
please check your air
conditioner for the following items
The system couldn't start
Is power on/off switched on?
The power on/off switch is
not at position of "ON".
Is the power supply line
normal? Is current leakage breaker
triggered?
Please do immediately
cut off power supply and
contact the authorized
service center.
Power
failure?
7

When Fault Occurs
Poor cooling or heating
Is the operation controller
adjusted as required? Are there any obstructs
before the air inlet or outlet? Is there any door or window
left open?
Poor cooling
Is there any other heat
source in the room? Is there any direct sunlight into the room? Are there too many people in the room?
If,after the above checks and the corresponding corrective actions,the system remains
abnormal operation,or the following facts appear, please turn off the air conditioner and
then contact the local authorized service center.
Frequent open of fuse or breaker.
There is water leakage during COOL or DRY operation.
The operation is abnormal or abnormal sound is heard.
8
Keep appropriate room temperature
Too cool or too warm wont benefit
to your health,but causes an incre-
ased energy consumption.

Notice to Users
Notice to users
To ensure proper operation of the system, the user shall follow this instruction manual
to install the unit.
When handling the air conditioner, please be care not to scratch the case surface.
This instruction manual describes the installation method aided with the installation
tools specified by manufacturer .
The maximum length of connection pipe is 50 m,and the maximum difference between
levels of indoor unit and outdoor unit shall be 30 m.
Please keep the installation instruction manual well for reference in maintenance or
changing installation position.
After installed,please follow the operational instruction manual to use the air conditioner
properly.
Information about application
Adjust your desired air flow direction Avoid direct sunlight and gas flow
Keep appropriate room temperature
Too cool or too warm wont benefit
to your health,but causes an incre-
ased energy consumption.
Effectively use the timer Using
TIMER mode you can enjoy a
comfortable room temperature
when wake up or come back home.
Maximum
temperature
Caution: After installation,please confirm no refrigerant leaks.
9

Installation Precautions
10
Warning
!
Before installing, do read this "Safety precautions" carefully to guarantee the proper installation.
The below attentive matters are divided into" Warning" " and " Note" two parts. When the
wrong installation occur, it is very possible death and severe injury and other serious accidents will
happen. For those items are listed in" Warning"
part. But even the items listed in " Note"
part can also cause serious accidents. Above all, both the two parts are very important contents
related to safety, so they must be obeyed.
After finishing the installation work, do test run to verify everything is normal. After that please
explain the using and maintenance methods to the user.Additionally, give this installation manual
and operation manual to the user and ask them to keep it properly.
The distributing shop, where you bought the air conditioner, or the specified shops shall do the
installation work. If you do the installation work by yourself, the improper installation will cause
water leakage, electric shock fire and other accidents.
The installation work shall be in line with what the installation manual specified. If installation
is not proper, water leakage, electric shock, fire and other accidents will occur.
Install the air conditioner to a place where can definitely stand its weight. Places not firm enough
will cause drop down of unit resulting in body hurt.
The installation work shall be preventive to typhoon and earthquake. If the installation work is
not met with the requirements, overturn of the unit will occur resulting in accidents.
The wiring work shall be done by a qualified person and referred to the " technical standard of
electric equipment" , "indoor wiring regulation" and what the manual specified. Do use
special circuit. If the capacity of the circuit is not enough or bad work, electric shock, fire and other
accidents will happen.
Using the specified cable to do wiring work and connecting firmly and properly. Fix the connecting
part of the terminals to prevent it from the external force.Improper connection and fixing will cause
heating and fire etc. accidents.
Wiring shall be kept in correct shape avoiding extrusion. After installation, the electric box cover
and the external panel shall not nip the wire. Improper installation will cause heating and fire etc.
accidents.
When setting or moving the air conditioner do not let the air and things alike get into the
refrigeration system except the specified refrigerant. If air and other things enter, abn-
ormal high pressure will occur, which easily cause break and body injuries etc. Accidents.
When installing, do use the accessories or specified parts. If not using the parts specified by our
company, water leakage, electric shock, fire and refrigerant leakage will occur.
Do not lead the drainpipe to drain where the sulfur gas may be involved. Otherwise, the poisonous
gas will enter into the indoor.
During installation, if refrigerant leakage occurs, do the ventilation work immediately. As soon as
the refrigerant gas meets fire, poisonous gas will be produce. If the refrigerant gas enters into room
and meet the air blowing heater, heater or stove etc. fire source, the poisonous gas may be produced.
After installation, confirm there is no leakage of refrigerant.
Do not install the unit in a place where the combustible gas may be leaked. In any case the
combustible gas leaks and accumulated around the unit, fire accident will occur.
Do heat insulation work to the refrigerant gas pipes and liquid pipes to reach the purpose of heat
preservation. If the heat insulation measure is not sufficient, water generated by condensing dew
will drip leading to wet the floor and indoor articles.
Note
!
Do grounding work.Do not connect the grounding wire to gas pipe,tap,lighting rod or telephone
line.Improper grounding will cause electric shock.
After electric installation,power on them to do electric leakage test.
! !
!!

1. Select suitable places the outlet air can be sent to the entire room, and convenient to lay out
the connection pipe, connection wire and the drainage pipe to outdoor.
2. The ceiling structure must be strong enough to support the unit weight.
3. The connecting pipe, drain pipe and connection wire shall be able to go though the building
wall to connect between the indoor and outdoor units.
4. The connecting pipe between the indoor and outdoor
units as well as the drain pipe shall be as short as possible.
5. If its necessary to adjust the filling amount of the refrigerant, please refer to the installation
manual attached with the outdoor unit.
6. The connecting flange should be provided by the user himself.
7. The indoor unit have 2 drainage outlet, one outlet be jamedwith rubber cap, during installation
only use another outlet (In/Out liquid pipe side). When necessary, use the two together.
8. Do not place the TV, equipment, facility, piano etc, expensive goods below the AC. This is to
prevent the water dropping down from theAC and lead to damage to the goods.
Installation Precautions
This description does not address to all possible cases. For new requirement and query, please
consult the regional sales center of Haier Air Conditioner General Co., Ltd.
This instruction manual must be read carefully before beginning of installation, improper ins-
tallation may cause accidents and thus bring about machine damage and personal casualty.
Installing tools
1. Screw driver 6. Pipe cutter 10. Leakage detector or soap water
2. Hacksaw 7. Pipe expander 11. Measuring tape
3. Driller of 70mm diameter 8. Knife 12. Scraper
4. Spanner (diameter 17, 27mm) 9. Pinchers 13. Refrigeration oil
5. Spanner (14, 17, 19, 27mm)
11
! Attention
! Warning
Indoor unit
The indoor unit shall be installed at locations where cold and hot air could evenly circulated.
The following locations should be avoided:
Places with rich saline matters (seaside regions).
Places with plenty of gas sulfides (mainly in warm spring areas where the copper tube and
braze weld is prone to corrosion).
Locations with much oil (including mechanical oil) and steam.
Locations using organic solvents.
Places where there are machines generating HF electromagnetic waves.
Positions adjacent to door or window in contact with high-humidity external air. (Easy to
generate dew).
Locations frequently using special aerosols.
Less than 2.7 meters above the floor for air outlet opening.

1. Select suitable places the outlet air can be sent to the entire room, and convenient to lay out
the connection pipe, connection wire and the drainage pipe to outdoor.
2. The ceiling structure must be strong enough to support the unit weight.
3. The connecting pipe, drain pipe and connection wire shall be able to go though the building
wall to connect between the indoor and outdoor units.
4. The connecting pipe between the indoor and outdoor
units as well as the drain pipe shall be as short as possible.
5. If its necessary to adjust the filling amount of the refrigerant, please refer to the installation
manual attached with the outdoor unit.
6. The connecting flange should be provided by the user himself.
7. The indoor unit have 2 drainage outlet, one outlet be jamedwith rubber cap, during installation
only use another outlet (In/Out liquid pipe side). When necessary, use the two together.
8. Do not place the TV, equipment, facility, piano etc, expensive goods below the AC. This is to
prevent the water dropping down from theAC and lead to damage to the goods.
Installation Procedure
12
After selecting the unit installation location, proceed the following steps:
1. Drill a hole in the wall and insert the connecting pipe and wire through a PVC wall-through tube
purchased locally. The wall hole shall be with a outward down slope of at least 1/100. (See
Figure 2)
2. Before drilling check that there is no pipe or reinforcing bar just behind the drilling position.
Drilling shall avoid at positions with electric wire or pipe.
3. Mount the unit on a strong and horizontal building roof. If the base is not firm, it will cause
noise, vibration or pipe broken and refrigerant leakage (see Figure 6).
4. Support the unit firmly.
5. Change the form of the connection pipe, connection
wire and drain pipe so that they can go
through the wall hole easily.
Figure showing installation dimensions: (unit:mm)
Fig 2
Model abcdefgi
648 125
804 125
1024 125
615
770
990
452
452
452
225
225
225
55
55
55
225
225
225
100
100
100
1.For electrical heating unit, the air outlet not allowed directly connecting with canvas
etc. easy catching fire goods.
2.This series' indoor unit are all middle static pressure(50 Pa external static pressure ).
3.An access port must be provided during installation of indoor unit for maintenance.
Notes
When installing the ceiling concealed type indoor unit, a specially designed return air
bellows shall be installed, as shown in Figure 3, Figure 4.
A
Installing building roof
Ceiling
Air supply Air outlet duct
Unit
Return air
Return air bellows
Figure 3
*0.5m(0Pa)or*5m(50Pa)
223
1249
a
i
e
f
g
b
c
d
Series 12-14
Series 18-21
Series 09
223
500
Series 07
Series 24

Installation Procedure
13
Each air return and supply duct should fix to the floor precast slab by using an iron stand. Use glue to
seal the interface closely. Recommend the distance between the air return duct and the wall is more than
150mm.
The distance between air duct outlet and air conditioner outlet is according to the length of actually installed
air duct and in service behavior of the static pressure terminal: Installation sketch map for long and short
air duct is showed below, when connect to short air duct, using low static terminal (terminal color is white),
the distance between air duct outlet and air conditioner outlet is no more than 0.5m; when connect to long
air duct, using middle static terminal (terminal color is red), the distance between air duct outlet and air
conditioner outlet could be within 5m at this point.
Figure 6
M8 broad foundation bolt
M8 suspension screw
M8 broad lock ring
M8 nut
Unit
Air outlet grille
Air supply
No obstacles
within 1 m(0Pa)
Unit Return air
Return air bellows
As figure shown, suspend and install the unit.
Drain piping of condensed water should keep a downhill grade of 1% or more. Use insulating pipe to cover
the drain piping of condensed water to keep warmth.
Figure 4
air return shutter
air return duct
sling dog
drain piping
transition
air duct air outlet
duct air diffuser
joint of air diffuser
Figure 5
Figure 6
Installation for air duct of indoor unit
1. Installation of air discharge duct
This type of unit uses circular air duct with its caliber of 180mm.
An additional transitive air duct is necessary for the circular air duct to connect to the air
supply inlet. It should be also connected to its respective air diffuser separately. See
Fig.1. Adjust the wind speed of each air diffuser outlet to keep in line on the whole, so
as to meet a demand of the air conditioner in the room.
Indoor unit flexible joint
or static pressure box transitive air duct
circular air duct
joint of air diffuser
air diffuser
Fig1: Duct connected

14
Installation Procedure
2. Installation of air return duct
Use rivets to connect the air return duct to the air return inlet of the indoor unit. The
other end connects to the air return shutter. as shown in Fig.2.
3. Air duct insulation
Insulation layer is needed for air supply and return duct. First, paste a glue nail to the
air duct, and then attach the insulation cotton that has a tinfoil layer and use the glue
nail cover to fix. Finally, seal the air duct interface with tinfoil adhesive tape closely.
as shown in Fig3.
Wooden structure
A square wood shall be supported by the
beams and then set the suspension screws.
To set with embedded parts, foundation bolts etc.
Installing the suspension screw:
Use M8 or M10 suspension screws (4, prepared in the field) (when the suspension screw
height exceeds 0.9 m, M10 size is the only choice). These screws shall be installed as
follows with space adapting to air conditioner overall dimensions according to the original
building structures.
indoor unit
air return
shutter
rivet
air return
duct
Fig2: Duct return connected
galvanized
board
glue nail
insulating
fabric tinfoil adhesive tape
glue nail cover
Fig3
Square wood
Suspension
screw
Beam
New concrete slab
Iron reinforcement
Knife embedded part
Foundation bolt
Guide plate embedded part Pipe suspension foundation bolt

15
Installation Procedure
Original concrete slab
Use hole hinge, hole plunger or hole bolt.
lFasten the nut on the suspension screw and then hang the suspension screw in the T
slot of the suspension part of the unit.
lAided with a level meter, adjust level of the unit within 5 mm.
Steel reinforcement structure
Use steel angle or new support
steel angle directly.
Rigid PVC pipe VP31.5mm (internal diameter)
Foamed PE with thickness above 7mm
! Caution
In order to drain water normally, the drain pipe shall be processed as specified in
the installation manual and shall be thermal insulated to avoid dew generation.
Improper hose connection may cause indoor water leakage.
Requirements
The indoor drain pipe shall be thermal insulated.
The connection part between the drain pipe and the indoor unit shall be insulated so as to
prevent dew generation.
The drain pipe shall be slant downwards (greater than 1/100). The middle part shall not be
of S type elbow, otherwise abnormal sound will be produced.
The horizontal length of the drain pipe shall be less than 20 m. In case of long pipe, suppo-
rts shall be provided every 1.5 – 2m to prevent wavy form.
Central piping shall be laid out according to the following figure.
Take care not to apply external force onto the drain pipe connection part.
Pipe and insulation material
Pipe
Insulation
VP30
To the largest (app. 10cm)
Down slope above 1/100
S type elbow
1.5m~2m
Support
Insulation
(supplied by the user) Down slope
above 1/100
Hanging bolt
Suspension screw Support steel angle
Hanging of the indoor unit

Installation Procedure
Supplementary refrigerant
The refrigerant supplementation shall be as specified in the installation instructions
attached with the outdoor unit. The added refrigerant shall be R22.
The adding procedure shall be aided with a measuring meter
for a specified amount of supplemented refrigerant
Requirement
Overfilling or underfilling of refrigerant will cause compressor
fault. The amount of the added refrigerant shall be as specified
in the instructions.
Connection of refrigerant pipe
Conduct flared connection work to connect all refrigerant pipes.
Pipe cutting and expanding
If the pipe is too long or the flare is damaged, it needs to be cut or expanded.
Pipe expander
A
Allowable pipe length and drop
These parameters differ according to the outdoor unit. See the instruction manual attached
with the outdoor unit for details.
1. Pipe cutting 2. Removing burrs 3.Insertion nut 4. Pipe expansion
Hose
Drain pipe size: Ø19.05mm2(3/4") PVC pipe
The hose is used for adjusting the off-center and angle of the rigid PVC pipe.
Directly stretch the hose to install without making any deformation.
The soft end of the hose must be fastened with a hose clamp.
Please apply the hose on horizontal part
Insulation treatment:
Wrap the hose and its clamp until to the
indoor unit without any clearance with
insulating material, as shown in the figure.
Drain confirmation
During trial run, check that there is no leakage at the pipe connection part during water
draining even in winter.
Hose Hose clamp
Subsidiary insulation Insulation
Rigid PVC pipe
16
Pipe material
Model
Phosphorus deoxidized copper seamless pipe (TP2M) for air conditioner
Pipe size
(mm) Gas side Ø9.52
Liquid side Ø6.35 Ø12.70 Ø6.35 Ø15.88 Ø9.52
Series 12~14 Series 18-24Series 07~09

17
Installation Procedure
Vacuum pumping
With a vacuum pump, create vacuum from the stop valve of the outdoor unit.
l Emptying with refrigerant sealed in the outdoor unit is absolutely forbidden.
Open all valves
Open all the valves on the outdoor unit.
Gas leakage detection
Check with a leakage detector or soap water that if there is gas leakage at the pipe
connections and bonnets.
Insulation treatment
Conduct insulation treatment on both the gas side and liquid side of pipes respectively.
During cooling operation, both the liquid and gas sides are cold and thus shall be insulated
so as to avoid dew generation.
l The insulating material at gas side shall be resistant to a temperature above 120*.
l The indoor unit pipe connection part shall be insulated.
The notch upward (Attached detail view)
Indoor unit Subsidiary insulation tube
Field piping side
The connection of indoor unit pipes must use double spanners.
The installing torque shall be as given in the following table.
Double-spanner
operation
Connecting pipe
O.D.(mm)
Ø6.35
Ø9.52
Ø12.70
Ø15.88
Installing torque
(N-m)
11.8 (1.2kgf-m)
24.5 (2.5kgf-m)
49.0 (5.0 kgf-m)
78.4 (8.0 kgf-m)
Increased installing
torque (N-m)
13.7 (1.4 kgf-m)
29.4 (3.0 kgf-m)
53.9 (5.5 kgf-m)
98.0 (10.0 kgf-m)
Pipe expansion dimensions as follows:
Slope Damage Bur Partial Overlong
Correct Incorrect
6.35 mm (1/4") 0.8 ~ 1.5
9.52 mm (3/8") 1.0 ~ 1.8
12.7 mm (1/2") 1.2 ~ 2.0
15.88 mm (5/8") 1.4 ~2.2
Pipe diameter ØSize A (mm)

Installation Check and Trial Run
Check if the drain pipe and connection wires are arranged properly.
The drain pipe shall be put below. The connection wire shall be put above. Be sure to wrap
the drain pipe (especially the indoor part and the part inside the machine) with thermal ins-
ulating materials.
The drain pipe shall be made into slope. Avoid bulging up or down or phenomena shown
right figure in the run.
Installation check
*Do the supply voltage meet the requirement?
*Could the drainage water completely discharged to outdoor
*Are the power cord and the indoor/outdoor
*Is there any gas leakage at the pipe joints?
*Connection wire connected properly?
*Are the wires pressed firmly?
*Is the noise too big?
*Do the terminal numbers of the indoor/outdoor connection wire coincide with each other?
*Is the pipe connection part thermally insulated?
*Is the indoor unit mounted firmly and reliably?
Trial operation
The installation serviceman must conduct a trial operation and check:
*Does the temperature regulator work normally?
* Does the installation location selection meet the related requirements?
Wrap with the protective plastic tape
Wrap the connection pipe, the drain pipe and the connection wire
together with PVC tape.
Caution:
The connection pipe must be wrapped individually with insulating material from down to up.
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