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En-4

3. INSTALLATION WORK

Especially, the installation place is very important for the split 
type air conditioner because it is very dif

fi

 cult to move from 

place to place after the 

fi

 rst installation. 

]1

3.1. Selecting an installation location

Decide the mounting position together with the customer as 
follows.

 

WARNING

• Select installation locations that can properly support the 

weight of the indoor unit. Install the units securely so that 
they do not topple or fall.

 

CAUTION

Do not install the indoor unit in the following areas:
• Area with high salt content, such as at the seaside. It will 

deteriorate metal parts, causing the parts to fall or the 
unit to leak water.

• Area 

fi

 lled with mineral oil or containing a large amount 

of splashed oil or steam, such as a kitchen. It will 
deteriorate plastic parts, causing the parts to fall or the 
unit to leak water. 

• Area that generates substances that adversely affect the 

equipment, such as sulfuric gas, chlorine gas, acid, or 
alkali. It will cause the copper pipes and brazed joints to 
corrode, which can cause refrigerant leakage. 

• Area that can cause combustible gas to leak, contains 

suspended carbon 

fi

 bers  or 

fl

 ammable dust, or volatile 

inflammables such as paint thinner or gasoline. If gas 
leaks and settles around the unit, it can cause a 

fi

 re.

• Area where animals may urinate on the unit or ammonia 

may be generated.

• Do not use the unit for special purposes, such as storing 

food, raising animals, growing plants, or preserving 
precision devices or art objects.

  It can degrade the quality of the preserved or stored 

objects.

• Do not install where there is the danger of combustible 

gas leakage.

• Do not install the unit near a source of heat, steam, or 

fl

 ammable gas.

• Install the unit where drainage does not cause any 

trouble.

• Install the indoor unit, outdoor unit, power supply cable, 

transmission cable, and remote controller cable at least 1 
m away from a television or radio receivers. The purpose 
of this is to prevent TV reception interference or radio 
noise. (Even if they are installed more than 1 m apart, you 
could still receive noise under some signal conditions.)

• If children under 10 years old may approach the unit, 

take preventive measures so that they cannot reach the 
unit.

• Take precautions to prevent the unit from falling.

(1)  Install the indoor unit on a place having a suf

fi

 cient 

strength so that it withstands against the weight of the 
indoor unit.

(2)  The inlet and outlet ports should not be obstructed; the air 

should be able to blow all over the room.

(3)  Leave the space required to service the air conditioner.
(4)  Install the unit where connection to the outdoor unit is 

easy. 

(5)  Install the unit where the connection pipe can be easily 

installed. 

(6)  Install the unit where the drain pipe can be easily installed.
(7)  Install the unit where noise and vibrations are not 

ampli

fi

 ed. 

(8)  Take servicing, etc., into consideration and leave the 

spaces. Also install the unit where the 

fi

 lter can be 

removed.

(9)  Do not install the unit where it will be exposed to direct 

sunlight.

]1

3.2. Installation dimension

Floor console

300

or more

Left

Right

Unit : mm

300

or more

Under ceiling

Ceiling

Ceiling

Indoor unit

Left

150

or more

300

or more

2300

or more

Unit : mm

Floor

20 or more

Right

]1

3.3. Installation the unit

 

WARNING

• Install the air conditioner in a location which can 

withstand a load of at least 5 times the weight of the main 
unit and which will not amplify sound or vibration. If the 
installation location is not strong enough, the indoor unit 
may fall and cause injuries.

9367701070-05_IM_EN.indd   4

9367701070-05_IM_EN.indd   4

2011-9-16   8:45:00

2011-9-16   8:45:00

Summary of Contents for ABYA12-24LBTH

Page 1: ...5 INSTALLING DRAIN HOSE 9 6 ELECTRICAL WIRING 6 1 Electrical requirement 11 6 2 Wiring method 11 6 3 Unit wiring 11 6 4 Connection of wiring 13 6 5 External input and external output Optional parts 13 7 FIELD SETTING 7 1 Setting the address 16 7 2 Custom code setting 17 7 3 Function setting 18 8 MOUNT THE COVER PLATE AND THE INTAKE GRILLE 8 1 Handling for the pipe take off part 19 8 2 Mount the co...

Page 2: ...IT 1 2 1 Precautions for using R410A refrigerant WARNING Do not introduce any substance other than the prescribed refrigerant into the refrigeration cycle If air enters the refrigeration cycle the pressure in the refrigeration cycle will become abnormally high and cause the piping to rupture If there is a refrigerant leak make sure that it does not exceed the concentration limit If a refrigerant l...

Page 3: ...door unit from ceiling Bracket Right 1 Special nut 4 Wall bracket 2 For suspending the indoor unit on the wall Tapping screw M4 20mm 6 For fixing the wall bracket Coupler heat insulation 2 For indoor side pipe joint Binder Large 4 For fixing the coupler heat insulation Medium 3 For power supply transmission and remote controller cable binding Drain hose 1 For installing drain pipe Hose Band 1 For ...

Page 4: ...nit near a source of heat steam or flammable gas Install the unit where drainage does not cause any trouble Install the indoor unit outdoor unit power supply cable transmission cable and remote controller cable at least 1 m away from a television or radio receivers The purpose of this is to prevent TV reception interference or radio noise Even if they are installed more than 1 m apart you could st...

Page 5: ...at the hole is tilted down ward toward the outdoor for smooth water flow Unit mm Wall 6 Indoor side Outdoor side 3 3 1 Preparing indoor unit installation Open the intake grille and remove the 3 screws Machine screw Tapping screw Tapping screw Intake grille Remark The main unit can be wired before the indoor unit is installed Select the most appropriate installation order 3 3 2 Indoor unit installa...

Page 6: ...e originally RFM base Fixing screw 2 positions Barriers Fixing screw 2 positions Hook Install the barriers in the correct direction 4 PIPE INSTALLATION CAUTION Be more careful that foreign matter oil water etc does not enter the piping than with refrigerant R410A models Also when storing the piping securely seal the openings by pinching taping etc While welding the pipes be sure to blow dry nitrog...

Page 7: ...t 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 Use the special R410A flare tool or the conventional flare tool Leakage of refrigerant may result if other flare nuts are used 4 Protect the pipes by pinching them or with tape to prevent dust di...

Page 8: ...comes into contact with a flame When the flare nut is tightened properly by your hand hold the body side coupling with a separate spanner then tighten with a torque wrench Connection pipe Torque wrench Indoor unit pipe Body side Tighten with 2 wrenches Holding wrench Flare nut Flare nut mm in Tightening torque N m kgf cm 6 35 1 4 dia 16 to 18 160 to 180 9 52 3 8 dia 32 to 42 320 to 420 12 70 1 2 d...

Page 9: ... 1 Install the attached drain hose to the drain port of the body Install the hose band from the top of the hose within the graphic display area Secure firmly with the hose band 2 Use vinyl adhesive agent to glue the drain piping PVC pipe VP25 which is prepared on site or piping socket Apply color adhesive agent evenly until the gauge line and seal 3 Check the drainage 4 Install the heat insulation...

Page 10: ...connections either in the wiring or at the ends of the wiring can cause a malfunction electric shock or fire Always fasten the outside covering of the connection cable with the cable clamp If the insulator is chafed electric leakage may occur Securely install the electrical box cover on the unit An improperly installed electrical box cover can cause serious accidents such as electric shock or fire...

Page 11: ...e controller if it has a ground wire 1 6 3 Unit wiring Before attaching the cable to terminal block 6 3 1 Power supply cable Power supply cable 15 mm Earth cable 70 mm A For solid core wiring 1 To connect the electrical terminal follow the below diagram and connect after looping it around the end of the cable 2 Use the specified cables connect them securely and fasten them so that there is no stre...

Page 12: ...als with insulating sleeves as shown in the figure below to connect to the terminal block 2 Securely clamp the ring terminals to the cables using an appropriate tool so that the cables do not come loose 3 Use the specified cables connect them securely and fasten them so that there is no stress placed on the terminals 4 Use an appropriate screwdriver to tighten the terminal screws Do not use a scre...

Page 13: ...p Install the clamp 2 Pull out the electric component box Electric component box 3 Remove the electric component box cover Remove the 3 tapping screws Electric component box cover Base CAUTION Be careful not to pinch the lead cables between the electric component box and base 4 Wiring When there is 1 transmission cable or remote controller cable fasten it the same way as shown in the figure with a...

Page 14: ...nits with a connected unit be sure to make a branch outside the indoor unit using a pull box etc as shown on below example DC power supply 12 24V connected unit Load resistance P C B P C B CN6 CN6 CN6 P C B Input device 1 Input device 2 Indoor unit Indoor unit Indoor unit Load resistance No voltage terminal CN17 When a power supply is unnecessary at the input device you want to connect use the no ...

Page 15: ...od of functions Start Stop mode or Emergency stop mode Forced stop mode can be selected with function setting of indoor unit 2 External output terminals When picking up output signals for operating status abnormal conditions or indoor unit status Wiring methods and specifications 1 2 3 4 P C B CN16 4 DC power supply 12 24V 2 Connected load 3 connected unit Connected load 3 Connected load 3 2 Provi...

Page 16: ...o 3 below 1 IU AD REF AD SW settings This section 7 1 Setting the address 2 Remote controller settings Refer to the wired or wireless remote controller manual for detailed setting information Set IU AD REF AD SW to 0 3 Automatic address settings Refer to the outdoor unit manual for detailed setting information Set IU AD REF AD SW to 0 1 7 1 Setting the address Manual address setting method The ind...

Page 17: ... 9 0 9 9 0 9 10 1 0 10 1 0 11 1 1 11 1 1 12 1 2 12 1 2 99 9 9 63 6 3 Do not set the indoor unit address IU AD SW at 64 to 99 It may result failure 3 Remote controller address Rotary switch RC AD SW Factory setting 0 When connecting multiple indoor units to 1 standard wired remote controller set the address at RC AD SW in sequence from 0 Setting Setting range Type of switch Remote con troller addre...

Page 18: ...raise the trigger temperature use setting 03 01 Adjust 1 02 Adjust 2 03 Adjust 3 Auto restart 40 00 Enable Enable or disable automatic system restart after a power outage Auto restart is an emergency func tion such as for power failure etc Do not start and stop the indoor unit by this function in normal operation Be sure to operate by the control unit converter or external input device 01 Disable ...

Page 19: ...Orange Function number ones place 0 5s ON 0 5s OFF FILTER indicator lamp Red Setting number 0 9 0 5s ON 0 5s OFF Example Function 31 Setting number 2 OPERATION indicator lamp Green TIMER indicator lamp Orange FILTER indicator lamp Red 11 sec 10 sec 9 sec 1 cycle 12 sec ON OFF 0 5s 0 5s 0 5s 0 5s 0 5s 0 5s 0 5s 0 5s 0 5s 0 5s 0 5s 0 5s ON OFF ON OFF 8 MOUNT THE COVER PLATE AND THE INTAKE GRILLE 1 8...

Page 20: ...tor lamps flash slowly at the same time 10 CHECK LIST 1 Pay special attention to the check items below when installing the indoor unit s After installation is complete be sure to check the following check items again Check items If not performed correctly Check box Has the indoor unit been installed correctly Vibration noise indoor unit may drop Has there been a check for gas leaks refrigerant pip...

Page 21: ...DE Error contents OPERATIOR indicator lamp green TIMER indicator lamp orange FILTER indicator lamp red 1 2 Remote controller communication error 1 4 Anomalous network communications 1 6 Parallel communication error 3 1 Power frequency error 3 2 Model information error EEPROM accession error 4 1 Room temperature thermistor error 4 2 Indoor heat exchanger temperature thermistor error 5 1 Indoor fan ...

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