Fujitsu AJG090JATAH Handleiding

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En-1

PART No. 9378945746-02

INSTALLATION MANUAL

For authorized service personnel only.

VRF SYSTEM OUTDOOR UNIT (Cooling only)

AJG072JATAH

AJG090JATAH

AJG108JATAH

AJG126JATAH

AJG144JATAH

AJG162JATAH

AJG180JATAH

Contents

1. SAFETY PRECAUTIONS ........................................................................................1

2. ABOUT THIS PRODUCT .........................................................................................2

2.1. Precautions for using R410A refrigerant .......................................................2

2.2. Special tools for R410A .................................................................................2

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

2.4. Combinations ................................................................................................3

2.5. Optional parts................................................................................................3

3. INSTALLATION WORK ............................................................................................3

3.1. Selecting an installation location ...................................................................3

3.2. Drain processing ...........................................................................................3

3.3. Clearance requirement .................................................................................4

3.4. Transporting the unit .....................................................................................5

3.5. Installing the unit ...........................................................................................6

3.6.Removingthecompressorxture .................................................................6

4. SYSTEM CONFIGURATION ...................................................................................6

4.1.Systemconguration ....................................................................................6

4.2. Pipe selection................................................................................................7

4.3. Protection of pipes ........................................................................................8

5. PIPE INSTALLATION ...............................................................................................9

5.1. Brazing ..........................................................................................................9

5.2. Indoor unit pipe connections .........................................................................9

5.3. Opening for piping .........................................................................................9

5.4. Pipe connection ............................................................................................9

5.5. Multiple connections ...................................................................................10

6. ELECTRICAL WIRING ...........................................................................................12

6.1. The precautions of electrical wiring .............................................................12

6.2. Wiring method .............................................................................................12

6.3. Opening for wiring .......................................................................................12

6.4. Selecting power supply cable and breaker .................................................13

6.5. Transmission line ........................................................................................13

6.6. Wiring procedure.........................................................................................14

6.7.Externalinputandexternaloutput ..............................................................15

7. FIELD SETTING ....................................................................................................16

7.1. Field setting switches ..................................................................................16

7.2. DIP switch setting .......................................................................................16

7.3. Rotary switch setting ...................................................................................17

7.4. Push button setting .....................................................................................17

7.5.AddresssettingforSignalampliers ...........................................................19

7.6. Indoor unit address setting ..........................................................................19

7.7. Resistance measurement of transmission cable

(Measure with breaker OFF) .......................................................................19

8. PIPE INSTALLATION II ..........................................................................................20

8.1. Sealing test .................................................................................................20

8.2. Vacuum process .........................................................................................20

8.3. Installing thermal insulation .........................................................................21

9. TEST RUN .............................................................................................................22

9.1. Pre-check for test run..................................................................................22

9.2. Test run method ..........................................................................................22

9.3. Checklist .....................................................................................................22

10. STATUS DISPLAY .................................................................................................23

10.1. Normal operation codes ..............................................................................23

10.2. Error codes .................................................................................................23

1. SAFETY PRECAUTIONS

• Be sure to read this Installation manual thoroughly before installation.

• The warnings and precautions indicated in this Installation manual contain important

information pertaining to your safety. Be sure to observe them.

• After installing the unit, perform a test run to make sure the unit operates normally. Then,

explaintothecustomerhowtooperateandmaintaintheunit.

• Please pass this Installation manual together with the Operating manual to the customer.

Please ask the customer to keep the Operating manual and Installation manual at hand

for future reference during the moving or repair of the main unit.

WARNING

This mark indicates procedures which, if improperly per-

formed, might lead to the death or serious injury of the user.

For installation purposes, be sure to use the parts supplied by the manufacturer or other

prescribed parts.

Using non-specified parts will cause serious accidents such as falling unit, refrigerant

leakage, water leakage, electric shock, and fire.

To install a unit that uses the R410A refrigerant, use dedicated tools and pipe materials

that have been manufactured specifically for R410A use.

BecausethepressureoftheR410Arefrigerantisapproximately1.6timeshigherthan

the R22, failure to use dedicated pipe material or improper installation can cause

rupture or injury.

It will also cause serious accidents such as refrigerant leakage, water leakage, electric

shock, and fire.

Do not use this equipment with air or any other unspecified refrigerant in the refrigerant

lines.

Excesspressurecancausearupture.

Be sure to install the unit as prescribed, so that it can withstand earthquakes and

typhoons or other strong winds.

Improper installation can cause the unit to topple or fall, or other accidents

.

Ensure that the outdoor unit is securely installed at a place that can withstand the

weight of the unit.

Improper installation will cause injuries caused by falling unit.

Ifthereisarefrigerantleakage,makesurethatitdoesnotexceedtheconcentration

limit.

Ifarefrigerantleakageexceedstheconcentrationlimit,itcanleadtoaccidentssuchas

oxygenstarvation.

If a refrigerant leakage occurs during operation, immediately vacate the premises and

thoroughly ventilate the area.

Iftherefrigerantisexposedtofire,itwillcreateahazardousgas.

Electrical work must be performed in accordance with this Installation manual by a

person certified under the national or regional regulations. Be sure to use a dedicated

circuit for the unit.

An insufficient power supply circuit or improperly performed electrical work can cause

serious accidents such as electric shock or fire.

For wiring, use the prescribed type of cables, connect them securely, making sure that

therearenoexternalforcesofthecablesappliedtotheterminalconnections.

Improperly connected or secured cables can cause serious accidents such as overheat-

ing the terminals, electric shock, or fire.

Do not turn ON the power until all work has been completed.

Turning ON the power before the work is completed can cause serious accidents such

as electric shock or fire.

After the installation, make sure there is no refrigerant leakage.

Iftherefrigerantleaksintotheroomandbecomesexposedtoasourceoffiresuchasa

fan heater, stove, or burner, it will create a hazardous gas.

Use a wall hole pipe. Otherwise, it may cause a short circuit.

Do not place the outdoor unit near the handrail of the balcony.

Children may climb onto the outdoor unit, lean over the handrail and fall over.

Useonlyaspecifiedpowercable.Poorconnection,poorelectricalinsulation,andexceed-

ing the allowable current will lead to electric shock and fire

.

Attach the connecting cables securely to the terminal. Or secure it firmly with a "wiring

suppressor".

Loose connection will lead to malfunction, electric shock, and fire.

Install a breaker to cut off all AC main current at the same time.

If you do not install a breaker, it may cause electric shock and fire.

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 pipes not attached

properly with the valves open. This may cause abnormal pressure in the refrigeration

cycle that leads to rupture and even injury.

During the pump-down operation, make sure that the compressor is turned off before

you remove the refrigerant pipes. Do not remove the connection pipe while the com-

pressor is in operation with the valves open. This may cause abnormal pressure in the

refrigeration cycle that leads to breakage and even injury.

If there is a possibility of touching the fan during maintenance, make sure to turn OFF

the power before implementing the maintenance. Even if operations are suspended,

the fan of outdoor unit sometimes rotates, so if the fan rotates suddenly while in contact

with you may cause serious injury.

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