Haier 1U71S2SS5FA User manual

SPLIT SYSTEM AIR CONDITIONER
INSTALLATION MANUAL
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Contents
'H¿QLWLRQV.............................................. 6
Safety considerations ............................ 6
Before installation.................................. 8
Selecting installation site ....................... 9
Precautions on installation................... 11
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pipe length........................................... 12
5HIULJHUDQWSLSLQJ ................................ 15
Leak test and vacuum drying...............17
Charging refrigerant............................. 18
(OHFWULFDOZLULQJZRUN........................... 19
Test operation...................................... 21
Move and scrap the air conditioning.... 28
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Keep this manual for future reference.
Original instructions
No. 0150549760
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English

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and electronic products shall not be mixed
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try to dismantle the system yourself:the
dismantling of the air conditioning system,treatment of
the refrigerant,of oil and of other part must be done by
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and national legislation.Air conditioners must be treated
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and recovery.By ensuring this product is disposed of
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Please contact the installer or local authority for more
information.Battery must be removed from the remote
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covered by the Kyoto Protocol.Do not vent into the
atmosphere.
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y1 the factory refrigerant charge of the product
y2 the additional refrigerant amount charged in the
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y1+2 the total refrigerant charge
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the product charging port(e.g.onto the inside of the2 stop
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B factory refrigerant charge of the product:see unit name
plate
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D total refrigerant charge
E outdoor unit
F refrigerant cylinder and manifold for charging
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covered by the Kyoto Protocol
WARNING
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in
order to avoid a hazard
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
The appliances are not intended to be operated by means of an external timer or separate remote-control system
The A-weighted sound pressure level is below 70 dB
This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial
use by lay persons.
Air conditioner working temperature: cooling 10~43 degree, heating -15~24 degree.

4
Read the precautions in
this manual carefully before
operating the unit.
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Read the operator's manual Service indicator, read technical
manual
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happen.
Make sure ground connection is correct and reliable.Do not earth the unit to a utility pipe, lightning conductor or
telephone earth lead. Imperfect earthing may result in electric shocks.
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The air conditioning sockets should be placed 1m above from the air conditioner, nor under the air conditioner. Be
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Do not use means to accelerate the defrosting process or to clean, other than those recommended by the
manufacturer.
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Do not pierce or burn.
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personnel of Haier to scrap in order to obtain the correct disposal methods.
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CAUTION
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crack after prolonged use, causing refrigerant leakage.
Take adequate steps to prevent the outdoor unit being used as a shelter by small animals.Small animals.making
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Please instruct the customer to keep the area around the unit clean
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thermally insulated.
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use of the appliance by a person responsible for their safety.
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Keep the appliance and its cord out of reach of children less than 8 years.
This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for
commercial use by lay persons.
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The method of connection of the appliance to the electrical supply and interconnection of separate components, and
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severity and probability of occurrence.
DANGER
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WARNING
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CAUTION
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may also be used to alert against unsafe practices.
NOTICE
Indicates situations that may result in equipment
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INFORMATION
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information.
Some types of danger are represented by special symbols:
Electric current.
Danger of burning and scalding.
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Installation manual:
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DSSOLFDWLRQH[SODLQLQJKRZWRLQVWDOOFRQ¿JXUHDQG
maintain it.
Operation manual:
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DSSOLFDWLRQH[SODLQLQJKRZWRRSHUDWHLW
Maintenance instructions:
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DSSOLFDWLRQZKLFKH[SODLQVLIUHOHYDQWKRZWRLQVWDOO
FRQ¿JXWHRSHUDWHDQGRUPDLQWDLQWKHSURGXFWRU
application.
Dealer:
6DOHVGLVWULEXWRUIRUSURGXFWVDVSHUWKHVXEMHFWRIWKLV
manual.
Installer
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SURGXFWVDVSHUWKHVXEMHFWRIWKLVPDQXDO
User:
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product.
Service company:
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required serice to the unit.
Applicable legislation:
All international, European, national and local directives,
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applicable for a certain product or domain.
Accessories:
(TXLSPHQWZKLFKLVGHOLYHUHGZLWKWKHXQLWDQGZKLFK
needs to be installed according to instructions in the
documentation.
Optional equipment:
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SURGXFWVDVSHUWKHVXEMHFWRIWKLVPDQXDO
Field supply:
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LQVWUXFWLRQVLQWKLVPDQXDOEXWZKLFKDUHQRWVXSSOLHGE\
Haier.
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The precautions here, all cover very impertant topics, so
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All activities described in this manual shall be carried out
by an installer.
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installation, maintenance or service to the unit.
If not sure of installation procedures or operation of the unit,
DOZD\VFRQWDFW\RXUORFDOGHDOHUIRUDGYLFHDQGLQIRUPDWLRQ
Improper installation or attachment of equipment or
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only to use accessories, optional equipment and spare
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installed by an installer.
DANGER: ELECTRICAL SHOCK
6ZLWFKRIIDOOSRZHUVXSSO\EHIRUHUHPRYLQJWKH
VZLWFKER[VHUYLFHSDQHORUEHIRUHPDNLQJDQ\
connections or touching electrical parts.
To avoid electric shock, be sure to disconnect
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servicing the electrical parts. Even after 2
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terminals of main circuit capacitors or electrical
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votage at the terminals of main circuit capacitors
or electrical parts, and before touching, be sure
that those voltages are 50V DC or less.
When service panels are removed, live parts
can easily be touched by accident, Never
leave the unit unattended during installation or
VHUYLFLQJZKHQWKHVHUYLFHSDQHOLVUHPRYHG

7
DANGER: DO NOT TOUCH PIPING AND
INTERNAL PARTS
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or internal parts during and immediately after
operation. The piping and internal parts may be
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of the unit.
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give the piping and internal parts time to return
to normal temperature or, if you must touch
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Warning:
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installation manual.
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The equipment is not intended for use in a potentially
explosive atmosphere.
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humidity conditions, such as Electronic Data
Processing rooms, contacet yout dealer or see the
engineering databook or the service manual.
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of refrigerant leakage. When the unit is to be installed in
a small room, it is necessary to take proper measures
so that the amount of any leaked refrigerant does not
exceed the concentration limit in the event of a leakage.
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depletion.
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to fall of equipment.
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and this installation manual, using a separate circuit.
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circuit or improper electrical construction may lead to
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the fronstside panel can be securely fastened.
If the frontside panel is not in place, overheating of
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ventilate the area immediately.
Toxic gas may be produced if refrigerant gas comes
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sure that there is no leakage of refrigerant gas.
Toxic gas may be produced if refrigerant gas leaks
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When planning to relocate former installed units, you
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operation.
Never directly touch any accidental leaking refrigerant.
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Be sure to install an earth leakage circuit breaker in
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Caution:
Earth the unit.
Earthing resistance should be according to applicable
legislation.
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OLJKWQLQJFRQGXFWRURUWHOHSKRQHHDUWKZLUH
Incomplete earthing may cause electric shocks.
*DVSLSH
Lgnition or explosion may occur if the gas leaks. Water
pipe.
Hard vinyl tubes are not effective earths. Lightning
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may rise abnormally if struck by a lightning bolt.
Install drain piping according to this installation manual
to ensure good drainage, and insulate the pipe to
prevent condensation.
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or radios to prevent image interference or noise.
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Do not rinse the outdoor unit, This may cause electric
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Where there is mist of mineral oil, oil spray or vapour
for example a kitchen.
Plastic parts may deteriorate, and cause them to fall
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8
Where corrosive gas, such as sulphurous acid gas, is
produced.
Corrosion of copper pipes or soldered parts may
cause the refrigerant to leak.
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ZDYHV
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system, andcause malfunction of the equipment.
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Where the air contains high levels of salt such as that
near the ocean.
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In vehicles or vessels.
Where acidic or alkaline vapour is present.
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RUDYRLGSODFLQJDQ\REMHFWRQWKHXQLW)DOOLQJRU
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The unit may stop for several minutes during
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"thermostat stop" operation.
This appliance is intended to be used by expert or
trained users in shops, in light industry and on farms,
or for commercial use by lay persons.
Provide a logbook
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international codes, it may be necessary to provide a
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This manual describes the procedures for handling,
installing and connecting 1U~1 units.
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CAUTION
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required. 5HIHUWRSDUDJUDSK6HOHFWLRQRI
piping material" on page 14.
NOTICE: Insulation resistance of the
compressor
If, after installation, refrigerant accumulates in the
compressor, the insulation resistance can drop, but if
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check if the insulation resistance of the comressor
has risen or not.
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refrigerant in the compressor.
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interrupter is triggered:
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frequencies.
This unit has an inverter, so an interrupter capable
of handling high frequencies is needed to prevent
malfunction of the interrupter itself.
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The refrigerant requires strict cautions for keeping the
system clean, dry and tight.
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should be prevented from getting mixed into the system.
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additional refrigerant must be charged in its liquid
state.(If the refrigerant is in state of gas, its composition
FKDQJHVDQGWKHV\VWHPZLOOQRWZRUNSURSHUO\
The connected indoor units must be indoor units
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unit installation manual.
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This outdoor unit requires the pipe branching
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VLPXOWDQHRXVRSHUDWLRQV\VWHP5HIHUWRFDWDORJXHV
for details.
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disconnected discharge thermistor and suction
thermistor, burning of the compressor may occur.
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RIWKHRXWHUIURQWSODWHVZKHQDWWDFKLQJGHWDFKLQJ
the plates to avoid mistakes.
When closing the service panels, take care that the
tigntening torque does not exceed 4.1 N.M.

9
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WARNING
Be sure to provide for adequate measures in order
to prevent that the outdoor unit be used as a shelter
bye small animals.
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customer to keep the area around the unit clean.
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DUHVDWLV¿HGDQGWKDWPHHWVZLWK\RXUFXVWRPHUV
approval.
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 3OODFHVZKHUHWKHXQLWGRHVQRWERWKHUQH[WGRRU
neighbours.
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YLEUDWLRQDQGZKHUHWKHXQLWFDQEHLQVWDOOHGOHYHO
 3ODFHVZKHUHWKHUHLVQRSRVVLELOLW\RIÀDPPDEOH
gas or product leak.
 7KHHTXLSPHQWLVQRWLQWHQGHGIRUXVHLQDSRWHQWLDOO\
explosive atmosphere.
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 3ODFHVZKHUHWKHLQGRRUDQGRXWGRRUXQLWVVSLSLQJ
DQGZLULQJOHQJWKVFRPHZLWKLQWKHDOORZDEOHUDQJHV
 3ODFHVZKHUHZDWHUOHDNLQJIURPWKHXQLWFDQQRW
cause damage to the location (e.g. in case of a
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 'RQRWLQVWDOOWKHXQLWLQSODFHVRIWHQXVHGDVZRUN
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ZKHUHDORWRIGXVWLVFUHDWHGWKHXQLWPXVWEHFRYHUHG
 'RQRWSODFHDQ\REMHFWVRUHTXLSPHQWRQWRSRIWKH
XQLWWRSSODWH
installation
manual
rubber
base foot
 'RQRWFOLPEVLWRUVWDQGRQWRSRIWKHXQLW
 %HVXUHWKDWVXI¿FLHQWSUHFDXWLRQVDUHWDNHQLQ
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refrigerant leakage.
NOTICE
This is a class A product. In a domestic
environment this product may cause radio
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required to take adequate measures.
When installing the unit in a place exposed to strong
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RIGLVFKDUJHDLUDQGWKLVPD\KDYHWKHIROORZLQJ
consequences:
 'HWHULRUDWLRQRIWKHRSHUDWLRQDOFDSDFLW\
 )UHTXHQWIURVWDFFHOHUDWLRQLQKHDWLQJRSHUDWLRQ
 'LVUXSWLRQRIRSHUDWLRQGXHWRULVHRIKLJKSUHVVXUH
 :KHQDVWURQJZLQGEORZVFRQWLQXRXVO\RQWKHIDFHRI
the unit, the fan can start rotating very fast until it breaks.
5HIHUWRWKH¿JXUHVIRULQVWDOODWLRQRIWKLVXQLWLQD
SODFHZKHUHWKHZLQGGLUHFWLRQFDQEHIRUHVHHQ
5HSDUHDZDWHUGUDLQDJHFKDQQHODURXQGWKH
IRXQGDWLRQWRGUDLQZDVWHZDWHUIURPDURXQGWKHXQLW
,IWKHZDWHUGUDLQDJHRIWKHXQLWLVQRWHDV\SOHDVH
build up the unit on a foundation of concrete blocks,
etc.(the height of the foundation should be maximum
PP
If you install the unit on a frame, please install a
ZDWHUSURRISODWH¿HOGVXSSOXZLWKLQPPRIWKH
underside of the unit in order to prevent the invasion
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When installing the unitin a place frequently exposed
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foundation as high as possible.
Make sure that the unit is installed level.
 *HQHUDO
NOTICE
:KHQRSHUDWLQJWKHRXWGRRUXQLWLQDORZ
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WKHLQVWUXFWLRQVGHVFULEHGEHORZ
7RSUHYHQWH[SRVXUHWRZLQGLQVWDOOWKHRXWGRRUXQLW
ZLWKLWVVXFWLRQVLGHIDFLQJWKHZDOO
1HYHULQVWDOOWKHRXWGRRUXQLWDWDVLWHZKHUHWKH
VXFWLRQVLGHPD\EHH[SRVHGGLUHFWO\WRZLQG
7RSUHYHQWH[SRVXUHWRZLQGLQVWDOODEDIÀHSODWHRQ
the air discharge side of the outdoor unit.
,QKHDY\VQRZIDOODUHDVLWLVYHU\LPSRUWDQWWRVHOHFW
DQLQVWDOODWLRQVLWHZKHUHWKHVQRZZLOOQRWDIIHFWWKH
unit and set the outlet side at a right angle to the
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10
 *HQHUDO
)RUVHDFRDVWDSSOLFDWLRQVEORFNWKHXQLWIURPGLUHFWH[SRVXUHWRVHDEUHH]HE\LQVWDOOLQJWKHXQLWEHKLQGDVWUXFWXUH
VXFKDVDEXLOGLQJRUDSURWHFWLYHZDOOWKDWLVWLPHVKLJKHUWKDQWKHXQLWOHDYLQJPPRIVSDFHEHWZHHQ
WKHZDOODQGXQLWIRUDLUFLUFXODWLRQ&RQVXOWDQLQVWDOODWLRQH[SHUWDERXWWDNLQJDQWLFRUURVLRQPHDVXUHVVXFKDV
removing salinity on the heat exchanger and applying a rust inhibitor more frequently than once a year.
6HWWKHXQLWRQPRXQWLQJEUDFNHWVRUSDG7RDYRLGWKHDGYHUVHHIIHFWVRIVQRZLFHDQGGHIURVWLQJLVVXHVLQVWDOO
WKHXQLWRQKHDWSXPSULVHUVWRHQVXUHDVXI¿FLHQWKHLJKWIURPWKHJURXQG,QDOOFDVHVUHIHUWRORFDOFRGHIRU
correct riser height.
Make sure the outdoor unit is installed level and is stable.
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Sea
Sea
Sea
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Correct installation
Correct installation
Wrong installation
Wrong installation
Drainage
Drainage stand top is
covered
Drainage
Clearance is too small.
causing inadequate
drainage.
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should be higher than the
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+ 'FP
unit may become covered in
VQRZLIWKHVWDQGKHLJKWLV
LQVXI¿FLHQW

11
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NOTICE
If drain holes of the outdoor unit are covered by
DPRXQWLQJEDVHRUE\ÀRRUVXUIDFHUDLVHWKH
unit in order to provide a free space of more
than 130mm under the outdoor unit.
 )RXQGDWLRQZRUN
Check the strength and level of the installation
JURXQGVRWKDWWKHXQLWZLOOQRWFDXVHDQ\RSHUDWLQJ
vibration or noise after installation.
,QDFFRUGDQFHZLWKWKHIRXQGDWLRQGUDZLQJLQWKH
¿JXUH¿[WKHXQLWVHFXUHO\E\PHDQVRIWKHIRXQGDWLRQ
bolts. (Prepare four sets of M12 foundation bolts, nuts
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,WLVEHVWWRVFUHZLQWKHIRXQGDWLRQEROWVXQWLOWKHLU
length are 20mm from the foundation surface.
Fix the outdoor unit to the foundation bolts using nuts
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If the coating on the fastening area is stripped off, the
nuts rust easily.
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A leg pitch1
B leg pitch2
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D Drain hole
E Bottom frame
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outdoor
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Back
Front
Back and side
Front and back
Above 150
Above 150
Above 300
Height of
barriers is
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of outdoor
unit
Above 1000
Above 1000
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8

12
7KHWRSDQGWZRVLGHVXUIDFHVPXVWEHH[SRVHGWR
open space, and barriers on at least one side of the
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Back and side
Front and back
Above 1000
Above 150 Above 300
Above 300 Above 300
Above 300 Above 300
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Standard
Above 1000 Above 2000 Above 200
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space, and barriers on at least one side of the front and
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load of outdoor units is expected to regularly exceed the
maximum operating capacity, reserve a larger space
than that indicated at the air intake side of units.
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RIUHSDLUW\SHSDLQWRQWKHVXUIDFHDURXQGWKHHGJH
sections is recommended to prevent rust.
6. Refrigerant pipe size and
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DANGER
Piping an other pressure containing parts shall
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be suitable for refrigerant. Use phosphoric acide
deoxidised seamless copper for refrigerant.
Installation shall be done by an installer, the choice
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applicable legislation. In Europe the EN378 is the
application standard that shall be used.
INFORMATION
It is forbidden to discharge refrigerant into the
atmosphere. Collect the refrigerant in accordance
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NOTICE
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Be sure to open the stop valve after piping
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NOTICE
'RQRWXVHÀX[ZKHQEUD]LQJWKHUHIULJHUDQW
SLSLQJ)RUEUD]LQJXVHSKRVSKRUFRSSHUEUD]LQJ
¿OOHUPHWDO%&X3ZKLFKGRHVQRWUHTXLUHDÀX[
,IDFKORULQHÀX[LVXVHGWKHSLSLQJZLOOFRUURGH
DQGLIWKHÀX[FRQWDLQVÀXRULGHLIZLOOFDXVHWKH
coolant oil to deteriorate, adversely affecting the
FRRODQWSLSLQJV\VWHP
When barriers exist above the unit
Above 300
Above 1000
Above
1000

13
6.1. Necessary Tools and Materials
3UHSDUHWKHIROORZLQJWRROVDQGPDWHULDOVQHFHVVDU\IRULQVWDOOLQJDQGVHUYLFLQJWKHXQLW
1HFHVVDU\WRROVIRUXVHZLWK5$5$GDSWDELOLW\RIWRROVWKDWDUHIRUXVHZLWK5DQG5&
 7REHXVHGH[FOXVLYHO\ZLWK5$51RWWREHXVHGLIXVHGZLWK5RU5&
Tools/Materials Use Notes
*DXJH0DQLIRO Evacuating,refrigerant
charging
03DRQWKH+LJKSUHVVXUHVLGH
Charging Hose Evacuating, refrigerant
charging
Hose diameter larger than the concentional ones.
5HIULJHUDQW5HFRYHU\
Equipment
5HIULJHUDQWUHFRYHU\
5HIULJHUDQW&\OLQGHU 5HIULJHUDQWFKDUJLQJ :ULWHGRZQWKHUHIULJHUDQWW\SH3LQNLQFRORUDWWKH
top of the cylinder.
5HIULJHUDQW&\OLQGHU&KDUJLQJ
Port
5HIULJHUDQWFKDUJLQJ Hose diameter larger than the conventional ones.
Flare Nut Connecting the unit to piping 8VH7\SH)ODUHQXWV
 7RROVDQGPDWHULDOVWKDWPD\EHXVHGZLWK55ZLWKVRPHUHVWULFWLRQV
Tools/Materials Use Notes
*DVOHDNGHWHFWRU Detection of gas leaks The ones for HFC type refrigerant may be used.
Vacuum Pump Vacuum drying 0D\EHXVHGLIDUHYHUVHÀRZFKHFNDGDSWRULV
attached.
Flare Tool Flare machining of piping &KDJHVKDYHEHHQPDGHLQWKHÀDUHPDFKLQLQJ
GLPHQVLRQ5HIHUWRWKHQH[WSDJH
5HIULJHUDQW5HFRYHU\
Equipment
5HFRYHU\RIUHIULJHUDQW 0D\EHXVHGLIGHVLJQHGIRUXVHZLWK5$
 7RROVDQGPDWHULDOVWKDWDUHXVHGZLWK5RU5&WKDWFDQDOVREHXVHGZLWK5$5
Tools/Materials Use Notes
9DFXXP3XPSZLWKD&KHFN
Valve
Vacuum drying
Bender Bending pipes
Torque Wrench 7LJKWHQLQJÀDUHQXWV 2QO\DQGKDYHDODUJHU
ÀDUHPDFKLQLQJGLPHQVLRQ
Pipe Cutter Cutting pipes
Welder and Nitrogen Cylinder Welding pipes
5HIULJHUDQW&KDUJLQJ0HWHU 5HIULJHUDQWFKDUJLQJ
9DFXXP*DX]H Checking vacuum degree
 7RRODQGPDWHULDOVWKDWPXVWQRWXVHGZLWK5
Tools/Materials Use Notes
Charging Cylinder 5HIULJHUDQW&KDUJLQJ 0XVWQRWEHXVHGZLWK532W\SHXQLWV
7RROVIRU5$5PXVWEHKDQGOHGZLWKVSHFLDOFDUHDQGNHHSPRLVWXUHDQGGXVWIURPHQWHULQJWKHF\FOH

14
6.2. Piping Materials
 7\SHVRI&RSSHU3LSHV5HIHUHQFH
Maximum Operation Pressure $SSOLFDEOH5HIULJHUDQWV
3.4MPa 55&
4.15MPa 5$
4.3MPa 5
yUse pipes that meet the local standards.
Piping MaterialslRadial Thickness
8VHSLSHVPDGHRISKRVSKRUXVGHR[LGL]HGFRSSHU
6LQFHWKHRSHUDWLRQSUHVVXUHRIWKHXQLWVWKDWXVH532 LVKLJKHUWKDQWKDWRIWKHXQLWVIRUXVHZLWK5XVHSLSHVZLWKDW
OHDVWWKHUDGLDOWKLFNQHVVVSHFLILHGLQWKHFKDUWEHORZ3LSHVZLWKDUDGLDOWKLFNQHVVRIPPRUOHVVPD\QRWEHXVHG
6L]HPP 6L]HLQFK 5DGLDO7KLFNQHVVPP Type
ĭ  0.8t
7\SH2SLSHV
ĭ  0.8t
ĭ  0.8t
ĭ  1.0t
ĭ  1.0t 7\SH+RU+SLSHV
y$OWKRXJKLWZDVSRVVLEOHWRXVHW\SH2IRUSLSHVZLWKDVL]HRIXSWRĭZLWKFRQYHQWLRQDOUHIULJHUDQWV
XVHW\SH+SLSHVIRUXQLWVWKDWXVH5327\SH2SLSHVPD\EHXVHGLIWKHSLSHVL]HLVĭDQGWKHUDGLDO
WKLFNQHVVLVW
y7KHWDEOHVKRZVWKHVWDQGDUGVLQ-DSDQ8VLQJWKLVWDEOHDVDUHIHUHQFHFKRRVHSLSHVWKDWPHHWWKHORFDOVWDQGDUGV
)ODUH0DFKLQLQJW\SH2DQG2/RQO\
7KHIODUHPDFKLQLQJGLPHQVLRQVIRUXQLWVWKDWXVH532 LVODUJHUWKDQWKRVHIRUXQLWVWKDWXVH5LQRUGHUWRLQFUHDVHair
tightness.
)ODUH0DFKLQLQJ'LPHQVLRQPP
External dimension of pipes 6L]H Dimension A
532 5
ĭ 1/4" 9.1 9.0
ĭ 3/8" 13.2 13.0
ĭ 1/2" 16.6 16.2
ĭ 5/8" 19.7 19.4
ĭ 3/4" 24.0 23.3
,IDFOXWFKW\SHÀDUHWRROLVXVHGWRPDFKLQHÀDUHVRQXQLWVWKDWXVH5$PDNHWKHSURWUXGLQJSDUWRIWKHSLSHEHWZHHQ
DQGPP&RSSHUSLSHJDXJHIRUDGMXVWLQJWKHOHQJWKRISLSHSURWUXVLRQLVXVHIXO
Flare Nut
7\SHÀDUHQXWVLQVWHDGRIW\SHQXWVDUHXVHGWRLQFUHDVHWKHVWUHQJWK7KHVL]HRIVRPHRIWKHÀDUHQXWVKDYHDOVR
been changed.
)ODUHQXWGLPHQVLRQPP
External dimension of pipes 6L]H Dimension B
5327\SH 57\SH
ĭ 1/4" 17.0 17.0
ĭ 3/8" 22.0 22.0
ĭ 1/2" 26.0 24.0
ĭ 5/8" 29.0 27.0
ĭ 3/4" 36.0 36.0
Using this table as a reference, choose pipes that meet the local standards.
Dimension A
Dimension B

15
NOTICE
)RUQHZLQVWDOODWLRQVXVHWKHVWDQGDUGSLSHVL]HV
:KHQXVLQJH[LVWLRQJSLSHVVL]HXSLVDOORZHGDV
mentioned in the table above.
$GGLWLRQDOUHVWULFWLRQVWRZDUGVDOORZDEOHSLSHOHQJWKV
as mentioned in the table 7.3 on page 13, must be
taken into account.
1RWXVLQJWKHVWDQGDUGOSLSHVL]HPD\UHVXOWLQ
FDSDFLW\GHFUHDVH7KHLQVWDOOHUPXVWDFNQRZOHGJH
WKLVDQGMXGJHWKLVYHU\FDUHIXOO\LQIXQFWLRQRIWKH
complete installation.
([LVWLQJRUSUHLQVWDOOHGSLSLQJFDQEHXVHG
1. 3LSLQJPXVWFRPSO\ZLWKWKHFULWHULDEHORZ
 3LSLQJGLDPHWHUPXVWFRPSO\ZLWKWKHOLPLWDWLRQVDV
indicated LQSDUDJUDSK5HIULJHUDQWSLSHVL]H
3LSLQJOHQJWKPXVWEHZLWKLQ OLPLWVRIWKHDOORZDEOH
SLSLQJOHQJWKDVLQSDUDJUDSK$OORZDEOHSLSH
length and height difference".
 3LSLQJPXVWEHGHVLJQHGIRU5326HHSDUDJUDSK
"6.2. Selection of piping material".
 3LSLQJFDQEHUHXVHGZLWKRXWFOHDQLQJZKHQ
 7RWDOZD\SLSLQJOHQJWKP
 1RFRPSUHVVRUEUHDNGRZQKDVRFFXUUHGLQWKH
history of the unit to be replaced.
 $FRUUHFWSXPSGRZQRSHUDWLRQFDQEHH[HFXWHG
2SHUDWHWKHXQLWFRQWLQXRXVO\IRUPLQXWHVLQ
cooling mode.
 ([HFXWHDSXPSGRZQRSHUDWLRQ
 5HPRYHWKHDLUFRQGLWLRQLQJXQLWVWREHUHSODFHG
• Check the contamination inside the existing piping.
If you cannot meet all these requirements, the existing
pipes must be cleaned or replaced after removing the
air conditioning units to be replaced.
 3UHSDUHWKHÀDUHFRQQHFWLRQVIRUKLJKHUSUHVVXUH
See paragraph 6.2
Cautions on handling the stem cap
7KHVWHPFDSLVVHDOHGZKHUHLQGLFDWHGE\WKHDUURZ
Take care not to damage it.
After handling the stop valve, make sure tighten the
stem cap securely. For the tightening torque, refer to
WKHWDEOHEHORZ
Check for refrigerant leaks after tightening the stem
cap.
Cautions on handling the service port
$OZD\VXVHDFKDUJHKRVHHTXLSSHGZLWKDYDOYH
depressor pin, since the service port is a Schrader
type valve.
After handling the service port, make sure to tighten
the service port cap securely. For the tightening
WRUTXHUHIHUWRWKHWDEOHEHORZ
Check for refrigerant leaks after tightening the service
port cap.
7. Refrigerant piping
7.1. Piping diagram for single split
Flare connection
ZD\VWRSYDOYH
3-way stop valve for
1U71 and 1U100
Ball valve for others
Liquid pipe
Outdoor
unit
Indoor
Unit
*DVSLSH
3LSLQJVL]HIRUVLQJOHVSOLW
Model Pipe Diameter of
pipe
connecting
method
8666)$
8661)$
8663)$
Liquid
pipe ĭPP ÀDULQJ
connection
*DV
pipe ĭPP
/LPLWDWLRQVIRURQHZD\SLSLQJOHQJWKDQG
vertical height difference for single split
Model 8666)$
8661)$
8663)$
8663)$
8663)$
2QHZD\SLSLQJ
length less than 50 m less than 75 m
Vertical height
difference
EHWZHHQLQGRRU
DQGRXWGRRU
less than 30 m less than 30 m
,QVWDOOWKHUHPRYHGÀDUH
nuts to the pipes to be
FRQQHFWHGWKHQÀDUHWKH
pipes.
8663)$
8663)$
Liquid
pipe ĭPP ÀDULQJ
connection
*DV
pipe ĭPP

16
Precautions for refrigerant piping
'RQRWWZLVWRUFUXVKSLSLQJ
Be sure that no dust is mixed in piping.
%HQGSLSLQJZLWKDVZLGHDQJOHDVSRVVLEOH
Keep insulating both gas and liquid piping.
&KHFNÀDUHFRQQHFWHGDUHDIRUJDVOHDNDJH
 3LSLQJFRQQHFWLRQPHWKRG
$SSO\UHIULJHUDQWRLOWRWKHMRLQWDQGWKHÀDQJH
To bend a pipe, give the roundness as possible not to
crush the pipe.
When connecting pipe, hold the pipe centre to centre
DQGWKHQVFUHZQXWRQE\KDQGUHIHUWR)LJ
Be careful not to let foreign matters, such as sands
enter the pipe
Spanner
Spanner
-RLQW
Nut
Pipe diameter )DVWHQLQJWRUTXH1P
/LTXLGSLSHĭPP 
/LTXLGSLSHĭPP 
*DVSLSHĭPP 
*DVSLSHĭPP 
*DVSLSHĭPP 
)LHOGSLSHVFDQEHLQVWDOOHGLQIRXUGLUHFWLRQV$%&'(
$)RUZDUG
%6LGHZD\V
&%DFNZDUG
''RZQZDUG
(3RZHUVXSSO\FDEOHRXWGRRUDQGLQGRRUFRQQHFWLRQFDEOH
&XWWLQJRXWWKHWZRVOLWVPDNHVLWSRVVLEOHWRLQVWDOODV
VKRZQLQWKH¿JXUH)LHOGSLSHVLQGLUHFWLRQV8VH
DPHWDOVDZWRFXWRXWWKHVOLWV
To install the connecting pipe to the unit in a
GRZQZDUGGLUHFWLRQPDNHDNQRFNRXWKROHE\
SHQHWUDWLQJWKHFHQWUHDUHDDURXQGWKHNQRFNRXW
KROHXVLQJDPPGULOO[
$IWHUNQRFNLQJRXWWKHNQRFNRXWKROHLWLV
recommended to apply repair paint to the edge and
the surrounding end surfaces to prevent rusting.
:KHQSDVVLQJHOHFWULFDOZLULQJWKURXJKWKHNQRFNRXW
KROHVUHPRYHDQ\EXUUVIURPWKHNQRZRXWKROHVDQG
ZUDSWKHZLULQJZLWKSURWHFWLYHWDSHWRSUHYHQWGDPDJH
3UHYHQWLQJIRUHLJQREMHFWVIURPHQWHULQJ
3OXJWKHSLSHWKURXJKKROHVZLWKSXWW\RULQVXODWLQJ
PDWHULDOSURFXUHGORFDOO\WRVWRSXSDOOJDSVDVVKRZQ
LQWKH¿JXUH
3XWW\RULQVXODWLQJPDWHULDOSURGXFHGORFDOO\
If there is any possibility that small animals enter the
V\VWHPWKURXJKWKHNQRFNRXWKROHVSOXJWKHKROHVZLWK
SDFNLQJPDWHULDOV¿HOGVXSSOLHG
Insects or samall animals entering the outdoor unit may
cause a short circuit in teh electrical box.
6HDONQRFNRXWKROHVWRDYRLGVQRZDQGKXPLGLW\HQWHULQJ
3UHYHQWLQJIRUHLJQREMHFWVIURPHQWHULQJ
Be careful not to let the indoor and outdoor piping
FRPHLQWRFRQWDFWZLWKWKHFRPSUHVVRUWHUPLQDOFRYHU
,IWKHOLTXLGVLGHSLSLQJLQVXODWLRQPLJKWFRPHLQWR
FRQWDFWZLWKLWDGMXVWWKHKHLJKWDVVKRZQLQWKH
¿JXUHEHORZ$OVRPDNHVXUHWKH¿HOGSLSLQJGRHV
not touch the bolts or outer panels of the compressor.
When the outdoor unit is installed above the indoor
XQLWWKHIROORZLQJFDQRFFXU
7KHFRQGHQVHGZDWHURQWKHVWRSYDOYHFDQPRYHWR
the indoor unit. To avoid this, please cover the stop
YDOYHZLWKVHDOLQJPDWHULDO

17
If the temperature is higher than 30and the humidity
LVKLJKHUWKDQ5+WKHQWKLFNQHVVRIWKHVHDOLQJ
materials should be at least 20mm in ouder to avoid
condensation on the surface of the sealing.
%HVXUHWRLQVXODWHWKHOLTXLGDQGJDVVLGH¿HOGSLSLQJ
NOTICE
Any exposed piping may cause condensation.
7KHKLJKHVWWHPSHUDWXUHWKDWWKHJDVVLGH
piping can reach is around 120°C, so be sure to
XVHLQVXODWLQJPDWHULDOZKLFKLVYHU\UHVLVWDQW
DANGER
No not touch piping and internal parts.
7.7. Cautions for necessity of a trap
7RDYRLGWKHWKHULVNRIRLOKHOGLQVLGHWKHULVHUSLSLQJÀRZLQJ
EDFNLQWRWKHFRPSUHVVRUZKHQVWRSSHGDQGFDXVLQJ
liquid compression phenomenon, or cases of deterioration
RIRLOUHWXUQLWZLOOEHQHFHVVDU\WRSURYLGHDWUDSDWHDFK
difference in height of 10m in the riser gas piping.
$WUDSLVQRWQHFHVVDU\ZKHQWKHRXWGRRUXQLWLV
installed at higher position than the indoor unit.
8. Leak test and vacuum
drying
:KHQDOOSLSLQJZRUNLVFRPSOHWHDQGWKHRXWGRRUXQLWLV
connected to the indoor unit, it is necessary to :
check for any leakages in the refrigerant piping
to perform vacuum drying to remove all moisture in
the refrigerant piping.
If there is a possibility of moisture being present in the
UHIULJHUDQWSLSLQJIRUH[DPSOHUDLQZDWHUPD\KDYH
HQWHUHGWKHSLSLQJ¿UVWFDUU\RXWWKHYDFXXPGU\LQJ
SURFHGXUHEHORZXQWLODOOPRLVWXUHKDVEHHQUHPRYHG
8.1. General guidelines
All piping inside the unit has been factory tested for
leaks.
8VHDVWDJHYDFXXPSXPSZLWKDQRQUHWXUQ
YDOYHZKLFKFDQHYDFXDWHWRDJDXJHSUHVVXUHRI
N3D7RUUDEVROXWHPP+J
Connect the vacuum pump to both the service port
of the gas stop valve and the liquid stop valve to
LQFUHDVHHI¿FLHQF\
NOTICE
'RQRWSXUJHWKHDLUZLWKUHIULJHUDQWV8VHD
vacuum pump to evacuate the installation.
No additional refrigerant is provided for air
purging.
Make sure that the gas stop valve and
OLTXLGVWRSYDOYHDUH¿UPO\FORVHGEHIRUH
performing the leak test or vacuum drying.
 /HDNWHVW
7KHOHDNWHVWPXVWVDWLVI\VSHFL¿FDWLRQ(1
1. Vacuum leak test
1.1 Evacuate the system from the liquid and gas
SLSLQJWRN3D7RUU
1.2 Once reached, turn off the vacuum pump and
check that the pressure does not rise for at least
1 minute.
1.3 Should the pressure rise, the system may
either contain moisture (refer to the paragraph "
9DFXXPGU\LQJRUKDYHOHDNV
2. Pressure leak test
 %UHDNWKHYDFXXPE\SUHVVXUL]LQJZLWKQLWURJHQ
gas to a minimum gauge pressure of 0.2 MPa (2
EDU1HYHUVHWWKHJDXJHSUHVVXUHKLJKHUWKDQ
the maximum operation pressure of the unit, i.e.
03DEDU
2.2 Test for leaks by applying a bubble test solution
to all piping connections.
NOTICE
Make sure to use a recommended bubble test
VROXWLRQIURP\RXUZKROHVDOHU
'RQRWXVHVRDSZDWHUZKLFKPD\FDXVH
FUDFNLQJRIIDOUHQXWVVRDSZDWHUPD\FRQWDLQ
VDOWZKLFKDEVRUEVPRLVWXUHWKDWZLOOIUHH]HZKHQ
WKHSLSLQJJHWVFROGDQGRUOHDGWRFRUURVLRQRI
ÀDUHGMRLQWVVRDSZDWHUPD\FRQWDLQDPPRQLD
ZKLFKFDXVHVDFRUURVLYHHIIHFWEHWZHHQWKH
EUDVVÀDUHQXWDQGWKHFRSSHUÀDUH
 9DFXXPGU\LQJ
7RUHPRYHDOOPRVLWXUHIURPWKHV\VWHPSURFHHGDVIROORZV
1. Evacuate the system for at least 2 hours to a target
YDFXXPRIN3D EDU
2. &KHFNWKDWZLWKWKHYDFXXPSXPSWXUQHGRIIWKH
target vacuum is maintained for at least 1 hour.
3. 6KRXOG\RXIDLOWRUHDFKWKHWDUJHWYDFXXPZLWKLQ
hours or maintain the vacuum for 1 hour, the system
may contain too much moisture.
4. ,QWKDWFDVHEUHDNWKHYDFXXPE\SUHVVXUL]LQJZLWK
QLJURJHQJDVWRDJDXJHSUHVVXUHRI03DEDU
and repeat steps 1 to 3 unit all moisture has been
removed.
5. 7KHVWRSYDOYHVFDQQRZEHRSHQHGDQGRU
additional refrigerant can be charged.

18
INFORMATION
After opening the stop valve, it is possible that
the pressure in the refrigerant piping does not
rise. This migeh be caused by e.g. the closed
state of the expansion valve in the outdoor unit
circuit, but does not present any problem for
correct operation of the unit.
9. Charging refrigerant
9.1 Important information regarding the
refrigerant used
7KLVSURGXFWFRQWDLQVÀXRULQDWHGJUHHQKRXVHJDVHV
covered by the Kyoto Protocol. Do not vent gases into
the atmopsphere.
(YDFXDWH,QGRRU8QLWDQGLQWHUFRQQHFWLQJSLSHZRUNWRD
vacuum pressure of 500 microns and hold for 15 minutes.
7KH2XWGRRUXQLWLVVXSSOLHGZLWKUHIULJHUDQW+)&
32532VXIILFLHQWIRUPOLQHOHQJWK Calculate
additional refrigerant to suit your line length; UHIHU
VXSSOLHG6SHFLILFDWLRQ6KHHW
2SHQWKHVHUYLFHYDOYHDWWKH2XWGRRUXQLWWRDOORZ
UHIULJHUDQWWRÀRZWKURXJKRXWWKHV\VWHP
)RUORQJOLQHOHQJWKVRLORIWKHFRUUHFWW\SHVKRXOG
EHDGGHGWRWKHUHIULJHUDQWV\VWHPDWWKHUDWHVKRZQ
LQWKH6SHFL¿FDWLRQ'DWHWDEOHVHHSDUDJUDSK
/HDNFKHFNDOOEUD]HGDQG¿WWHGMRLQWV
3UHFDXWLRQVDQGJHQHUDOJXLGHOLQHV
When servicing the unit requires the refrigerant
system to be opened, treatment and evacuation
RIUHIULJHUDQWPXVWEHGRQHLQDFFRUGDQFHZLWK
DSSOLFDEOHOHJLVODWLRQ5HIULJHUDQWFDQQRWEHFKDUJHG
XQWLO¿HOGZLULQJKDVEHHQFRPSOHWHG
5HIULJHUDQWPD\RQO\EHFKDUJHGDIWHUSHUIRUPLQJWKH
leak test and vacuum drying.
CAUTION
When charging a system, care shall be taken
that its maximum permissible charge is never
H[FHHGHGLQYLHZRIWKHGDQJHURIOLTXLGKDPPHU
WARNING
5HIULJHUDQWF\OLQGHUVVKDOOEHRSHQHGVKORZO\
$OZD\VXVHSURWHFWLYHJORYHVDQGSURWHFW\RXUH\HV
ZKHQFKDUJLQJUHIULJHUDQW
DANGER
:KHQWKHSRZHULVRQSOHDVHFORVHWKHIURQWSDQHO
ZKHQOHDYLQJWKHXQLWXQDWWHQGHG
&KDUJLQJZLWKDQXQVXLWDEOHVXEVWDQFHPD\FDXVH
H[SORVLRQVDQGDFFLGHQWVVRDOZD\VHQVXUHQWKDW
WKHDSSURSULDWHUHIULJHUDQW5LVFKDUJHG
This unit requires additional charging of refrigerant
according to the length of refrigerant piping connected
at the site.
Make sure to charge the refrigerant in liquid state to
WKHOLTXLGSLSH6LQFH532LVDPL[HGUHIULJHUDQWLWV
composition changes if charged in its gaseous state
DQGQRUPDOV\VWHPRSHUDWLRQZRXOGWKHQQRORQJHU
be assured.
%HIRUHFKDUJLQJFKHFNZKHWKHUWKHUHIULJHUDQWF\OLQGHU
has a suphon attached or not and position the
cylinder accordingly.
Fill using a
F\OLQGHUZLWKD
siphon attached
Charge the liquid
UHIULJHUDQWZLWKWKH
cylinder in upright
position.
Fill using a cylinder
ZLWKDVLSKRQ
attached Charge the
OLTXLGUHIULJHUDQWZLWK
WKHF\OLQGHULQXS
VLGHGRZQSRVLWLRQ
On this model it is not necessary to charge additionally if
WKHSLSLQJOHQJWKP
&RPSOHWHUHFKDUJLQJ
NOTICE
Berore recharging, make sure to execute vacuum
GU\LQJRIWKHLQWHUPDOSLSLQJRIWKHXQLWDVZHOO
To do so, use the internal service port of the unit.
Do not use the service ports located on the stop
valve, since vacuum drying can not be performed
properly from these ports.
Outdoor units have 1 port on the piping. It is
EHWZHHQWKHKHDWH[FKDQJHUDQGWKHZD\YDOYH
,QFDVHFRPSOHWHUHFKDUJLQJLVUHTXLUHGDIWHUDOHDNHWF
UHIHUWRWHKLQIRUPDWLRQEHORZWRGHWHUPLQHWKHQHFHVVDU\
amount of refrigerant.
WARNING
Some sections ofthe refrigerant circuit may
be isolated from other sections caused by
FRPSRQHQWVZLWKVSHFL¿FIXQFWLRQVHJYDOYHV
The refrigerant circuit therefore features additional
service ports for vacuuming, pressure relief or
SUHVVXUL]LQJWKHFLUFXLW,QFDVHLWLVUHTXLUHGWR
SHUIRUPEUD]LQJRQWKHXQLWHQVXUHWKDWWKHUHLV
no pressure remaining inside the unit. Internal
SUHVVXUHVQHHGWREHUHOHDVHGZLWK$//WKH
VHUYLFHSRUWVLQGLFDWHGRQWKH¿JXUHVEHORZ
opened. The location is depending on mode type.

19
 7RWDOFKDUJLQJZHLJKWRIWKH
UHIULJHUDQWDIWHUDOHDNHWF
The total charging amounts relate to the refrigerant
piping length.
Model
5HIULJHUDQWSLSLQJOHQJWKOLTXLGVLGH
PD P P P P P P P
8666)$ 1.71.71.72.152.6
8661)$ 2.2.2.2.5.
8663)$ 2.9 2.9 2.9 3.35 3.8 4.25 4.7 5.15
 (OHFWULFDOZLULQJZRUN
WARNING
$OOZLULQJPXVWEHSHUIRUPHGE\DQDXWKRUL]HG
electrician.
All components procured on the side and all elecrtic
FRQVWUXFWLRQVKDOOFRPSO\ZLWKWKHDSSOLFDEOH
legislation.
'$1*(5+,*+92/7$*(
To avoid electrical shock, make sure to
GLVFRQQHFWWKHSRZHUVXSSO\PLQXWHRUPRUH
before servicing the electrical parts. Even after
PLQXWHDOZD\VPHDVXUHWKHYROWDJHDWWKH
terminals of main circuit capacitors or electrical
parts and, before touching , make sure that
those voltages are 50VDC or less.
NOTICE
7RSHUVRQVLQFKDUJHRIHOHFWULFDOZLULQJZRUN
Do not oerate the unit until the refrigerant piping
LVFRPSOHWH5XQQLQJLWEHIRUHWKHSLSLQJLV
UHDG\ZLOOEUHDNWKHFRPSUHVVRU
 3UHFDXWLRQVRQHOHFWULFDOZLULQJZRUN
When servicing the unit requires the refrigerant
system to be opened, treatment and evacuation
RIUHIULJHUDQWPXVWEHGRQHLQDFFRUGDQFHZLWK
DSSOLFDEOHOHJLVODWLRQ5HIULJHUDQWFDQQRWEHFKDUJHG
XQWLO¿HOGZLULQJKDVEHHQFRPSOHWHG
5HIULJHUDQWPD\RQO\EHFKDUJHGDIWHUSHUIRUPLQJWKH
leak test and vacuum drying.
DANGER
Before obtaining access to terminal devices, all
supply circuits must be interrupted.
Be sure to install an earth leakage circuit breaker in
DFFRUGDQFHZLWKDSOLFDEOHOHJLVODWLRQ)DLOXUHWRGR
so may cause electrical shock.
8VHRQO\FRSSHUZLUHV
$PDLQVZLWFKRURWKHUPHDQVIRUGLVFRQQHFWLRQ
having a contact separation in all poles, must be
LQFRUSRUDWHGLQWKH¿[HGZLULQJLQDFFRUGDQFHZLWK
DSSOLFDEOHOHJLVODWLRQ'RQRWWXUQRQWKHPDLQVZLWFK
XQWLODOOWKHZLULQJLVFRPSOHWHG
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phase.
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20
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LQWKH¿JXUHLQ
Make sure no external pressure is applied to the
terminal connectors.
When installing the earth leakage circuit breaker make
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KLJKIUHTXHQF\HOHFWULFDOQRLVHWRDYRLGXQQHFHVVDU\
opening ofthe earth leakage circuit breaker.
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IUHTXHQF\ZDYHV7KHUHIRUHQHYHULQVWDOODSKDVH
advancing capacitor.
CAUTION
Be sure to install the required fuses or circuit
breakers.
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Clip Clip
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connection cable
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Secure the cable to the stop valve attachment plate
so that it does not slide.
When cables are routed from the unit, a protection
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ZRUNV
Power supply:
1PH,220-240V~,
50/60Hz
Outdoor unit
terminal blocks
1U71S2SS5FA
Indoor unit
terminal blocks
AD71S2SM7FA
3RZHUVXSSO\
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Outdoor unit
terminal blocks
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Indoor unit
terminal blocks
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1U100S2SN5FA
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3RZHUVXSSO\FDEOH+51)*PP2
,QGRRUDQGRXWGRRUFRQQHFWLRQFDEOH+51)*PP2
,IWKHLQGRRUDQGRXWGRRU
XQWFRQQHFWLRQFDEOHOHQJWK/VDWLVILHGFRQGLWLRQ40m<
L<55m, please change the connection cables
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condition 55m<L<75m, please change the connection
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