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SAFETY PRECAUTIONS

11 

This installation manual describes how to install the outdoor unit only. To install the indoor 

unit, refer to the installation manual included with the indoor unit.

IMPORTANT!

Please Read Before Starting

This air conditioning system meets strict safety and operating standards.

As the installer or service person, it is an important part of your job to install or service the 

system so it operates safely and efficiently.

For safe installation and trouble-free operation, you must:

• Carefully read this instruction booklet before beginning.

• Follow each installation or repair step exactly as shown.

• Observe all local, state, and national electrical codes.

• Pay close attention to all danger, warning, and caution notices given in this manual.

DANGER:

This mark indicates procedures which, if improperly performed, are 

most likely to result in the death or serious injury to the user or service 

personnel.

WARNING:

This symbol refers to a hazard or unsafe practice which can result in 

severe personal injury or death.

CAUTION:

This symbol refers to a hazard or unsafe practice which can result in 

personal injury and the potential for product or property damage.

• Hazard alerting symbols

Electrical

Safety / alert

If Necessary, Get Help

These instructions are all you need for most installation sites and maintenance conditions. 

If you require help for a special problem, contact our sales/service outlet or your certified 

dealer for additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for improper installation or maintenance 

service, including failure to follow the instructions in this document.

SPECIAL PRECAUTIONS                                                                                                    

When Wiring                                                                                                                            

ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH1 ONLY 

A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS 

SYSTEM1

•  Do not supply power to the unit until all wiring and tubing are completed or reconnected 

and checked.

•  Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring 

diagram and these instructions when wiring. Improper connections and inadequate 

grounding can cause accidental injury or death.

•  Ground the unit following local electrical codes.

•  Connect all wiring tightly. Loose wiring may cause overheating at connection points and 

a possible fire hazard.

When Transporting                                                                                                                

Be careful when picking up and moving the indoor and outdoor units. Get a partner to 

help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin 

aluminum fins on the air conditioner can cut your fingers.

When Installing111                                                                                                                  

...In a Ceiling or Wall

Make sure the ceiling/wall is strong enough to hold the unit’s weight. It may be necessary 

to construct a strong wood or metal frame to provide added support.

111In a Room

Properly insulate any tubing run inside a room to prevent “sweating” that can cause 

dripping and water damage to walls and floors.

111In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the 

outdoor unit. This prevents water damage and abnormal vibration.

111In an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air 

baffle.

111In a Snowy Area (for Heat Pump-type Systems)

Install the outdoor unit on a raised support that is higher than drifting snow. Provide snow 

vents.

When Connecting Refrigerant Tubing                                                                               

• Keep all tubing runs as short as possible.

• Use the flare method for connecting tubing.

• Apply refrigeration compressor oil (or equivalent) used for the outdoor unit to the 

matching surfaces of the flare and union tubes before connecting them, then tighten the 

nut with a torque wrench for a leak-free connection.

• Check carefully for leaks before starting the test run.

NOTE:

Depending on the system type, liquid and gas lines may be either narrow or wide. 

Therefore, to avoid confusion the refrigerant tubing for your particular model is specified 

as either “small” or “large” rather than as “liquid” or “gas”.

When Servicing                                                                                                                   

•Turn the power OFF at the main circuit breaker panel before opening the unit to check or 

repair electrical parts and wiring.

• Keep your fingers and clothing away from any moving parts.

• Clean up the site after you finish, remembering to check that no metal scraps or bits of 

wiring have been left inside the unit being serviced.

• After installation, explain correct operation to the customer, using the operating manual.

Be sure to read this Manual thoroughly before installation.

 

The warnings and precautions indicated in this Manual contain important information 

 

pertaining to your safety. Be sure to observe them.

Hand this Manual, together with the Operating Manual, to the customer. Request the 

 

customer to keep them on hand for future use, such as for relocating or repairing the 

unit.

After installation, explain correct operation to the customer, using the operating 

 

manual.

 

DANGER

Never touch electrical components immediately after the power supply has been 

turned off. Electrical shock may occur. After turning off the power, always wait 

 

5 minutes or more before touching electrical components.

 WARNING

During installation, make sure that the refrigerant pipe is attached firmly before you 

run the compressor. Do not operate the compressor under the condition of refrigerant 

piping not attached properly with 2-way or 3-way valve open. This may cause 

abnormal pressure in the refrigeration cycle that leads to breakage and even injury.
Do not remove the connection pipe while the compressor is in operation with 2-way or 

3-way valve open. This may cause abnormal pressure in the refrigeration cycle that 

leads to breakage and even injury.
When installing and relocating the air conditioner, do not mix gases other than the 

specified refrigerant (R410A) to enter the refrigerant cycle. If air or other gas enters 

the refrigerant cycle, the pressure inside the cycle will rise to an abnormally high value

and cause breakage, injury, etc.
When installing this system in high humidity locations, install using ground fault 

equipment breakers (often referred to in other countries as an ELCB earth leakage 

current breaker) to reduce the risk of leaking current which may result in electric shock 

or potential fire.

INSTALLATION MANUAL

PART NO. 9374747122

Contents

1.  SAFETY PRECAUTIONS

  ……………………………………………………………… 1

2.  ABOUT THE PRODUC

T

2.1.  Precautions for using R410A refrigerant

 ………………………………………… 2

2.2.  Special tools for R410A

  …………………………………………………………… 2

2.3.  Accessories  ………………………………………………………………………… 2

2.4.  System configuration

  ……………………………………………………………… 3

3.  INSTALLATION WORK

3.1.  Selecting an installation location  ………………………………………………… 5

3.2.  Drain installation

  …………………………………………………………………… 5

3.3.  Installation dimensions  …………………………………………………………… 5

3.4.  Transportation of the unit  ………………………………………………………… 6

3.5.  Installation of the unit ……………………………………………………………… 6

4

.  PIPE INSTALLATIO

N

-1

4

.1.  Flare connection (pipe connection)

  ……………………………………………… 7

5

.  ELECTRICAL WIRING

5.1.  The precautions of electrical wiring  ……………………………………………… 8

5.2.  Electrical requirement ……………………………………………………………… 8

5.3.  Unit wiring …………………………………………………………………………… 8

5

.4.  Connection Diagra

ms ……………………………………………………………… 9

5.5.  Outdoor Unit ………………………………………………………………………… 9

6

.  PIPE INSTALLATIO

N

-2

6.1.  Vacuum …………………………………………………………………………… 1

0

6.2.  Additional charging ……………………………………………………………… 11

7

.  POWE

R  ………………………………………………………………………………… 11

8.  TEST RUN

8

.1.  Make a test run in accordance with the installation instruction sheet for the 

 

indoor unit ………………………………………………………………………… 12

8

.2.  Outdoor unit LED

 ………………………………………………………………… 12

8

.3.  Confirming the operation of indoor unit

  ……………………………………… 12

9. 

PUMP DOWN

  ………………………………………………………………………… 12

10

CUSTOMER GUIDANCE

……………………………………………………………… 12

9374747122_IM_En.indd   1

20/12/2553   13:09:04

Содержание AIR CONDITIONER

Страница 1: ...TIONER OUTDOOR UNIT PART NO 9374747122 INSTALLATION MANUAL For authorized personnel only MANUEL D INSTALLATION Pour le personnel agréé uniquement MANUAL DE INSTALACIÓN Solo para personal autorizado 9374747122_IM_En indd 1 20 12 2553 13 09 04 ...

Страница 2: ...ly refrigeration compressor oil or equivalent used for the outdoor unit to the matching surfaces of the flare and union tubes before connecting them then tighten the nut with a torque wrench for a leak free connection Check carefully for leaks before starting the test run NOTE Depending on the system type liquid and gas lines may be either narrow or wide Therefore to avoid confusion the refrigeran...

Страница 3: ... water etc does not enter the piping than with refrigerant models Also when storing the piping securely seal the openings by pinching taping etc When charging the refrigerant take into account the slight change in the composition of the gas and liquid phases and always charge from the liquid phase side whose composition is stable Special tools for R410A 222222 Tool name Contents of change Gauge ma...

Страница 4: ...capacity type 222222222 CAUTION The total capacity of the indoor units connected must be between 14 000 and 27 000 BTU Connection patterns are restricted Normal operation is not guaranteed if connected pattern in the combination not listed below The product may be damaged Surely connect in accordance with the combination in the following connection pattern To install an indoor unit refer to the in...

Страница 5: ...ng is neces sary For more information refer to 6 2 Additional charging Selecting pipe sizes 222222222 The diameters of the connection pipes differ according to the capacity of the indoor unit Refer to the following table for the proper diameters of the connection pipes between the indoor and outdoor units Capacity of indoor unit Gas pipe size thickness mm in Liquid pipe size thickness mm in 7 12 ø...

Страница 6: ...topple or fall or other accidents Do not install the outdoor unit near the edge of a balcony Otherwise children may climb onto the outdoor unit and fall off of the balcony CAUTION Do not install the outdoor unit in the following areas Area with high salt content such as at the seaside It will deteriorate metal parts causing the parts to fail or the unit to leak water Area filled with mineral oil o...

Страница 7: ...pipes Secure the unit to a solid block using foundation bolts Use 4 sets of commercially available M10 bolts nuts and washers The bolts should protrude 20 mm 0 78 in Refer to the figure If overturning prevention is required purchase the necessary commercially available items Unit mm in 650 25 19 32 370 14 9 16 Bottom side 4 ø12 1 15 32 hole Fix securely with bolts on a solid block Use 4 sets of co...

Страница 8: ...er and flare tool exclusive for R410A 1 Cut the connection pipe to the necessary length with a pipe cutter 2 Hold the pipe downward so that the cuttings will not enter the pipe and remove any burrs 3 Insert the flare nut always use the flare nut attached to the indoor and outdoor units respectively onto the pipe and perform the flare processing with a flare tool Leakage of refrigerant may result i...

Страница 9: ...ngth may lead to erroneous operation The static electricity that is charged to the human body can damage the control PC Board when handling the control PC Board for address setting etc Please keep caution to the following points Provide the grounding of Indoor unit Outdoor unit and Option equipment Cut off the power supply breaker Touch the metal section such as the unpainted control box section o...

Страница 10: ... UNIT A DISCONNECT SWITCH FIELD SUPPLY DISCONNECT SWITCH FIELD SUPPLY WARNING Disconnect switch and for over current protection given in the table below is to be installed between the indoor unit and the outdoor unit Disconnect switch 15A CAUTION Be sure to refer the above diagram and do correct field wiring Wrong wiring causes malfunction of the unit Check local electrical codes and also any spec...

Страница 11: ...ps and charging port cap of the 2 way valve and 3 way valve to the specified torque Checking gas leaks with nitrogen gas Check if the piping connections are secure Remove the cap of 3 way valve and connect the gauge manifold charge hoses to the charging port of the 3 way valve Pressurize with nitrogen gas using the 3 way valve charging port Do not pressurize up to the specified pressure all at onc...

Страница 12: ...ng the refrigerant take into account the slight change in the composition of the gas and liquid phases and always charge from the liquid phase side whose composition is stable Gas Liquid R410A Add refrigerant from the charging valve after the completion of the work If the units are further apart than the maximum pipe length correct operation cannot be guaranteed POWER 777 WARNING The rated voltage...

Страница 13: ...D2 LED1 Hole LED is on a reverse side of the board Confirming the operation of indoor unit 888888 Run the unit in a normal way and confirm its operation Please end the test run first before confirmation 1 Cold air or warm air must be discharged from the indoor unit 2 The indoor unit operates normally when air direction or air volume adjustment buttons pressed PUMP DOWN 999 PUMP DOWN OPERATION To a...

Страница 14: ...9374747122_IM_Es indd 13 20 12 2553 13 13 45 ...

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