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Installation method of Drain cap

 Please put the heat insulation inside all along.

 Use a hexagonal wrench (4mm at opposite side) to insert the drain cap, till the drain 

cap contacts the tip of drain cock.

No gap

Hexagonal 
wrench

Drain Cock

Drain cap

Insulation

No gap

[Removal method of drain hose]

Remove the screw at the left of drain hose and pull out drain hose.

Drain 

fi

 xture (blue)

Screw

Drain hose

[Installation method of drain hose]

Vertically insert the drain hose toward the inside, so that the drain 

fi

 xture (blue) can 

accurately align with the screw hole around the drain cock.

After inserting and before replacing, please reinstall and 

fi

 x the removed screws.

Drain cock

Screw

Drain hose

Drain 

fi

 xture (blue)

Screw hole

  Be sure to install around the drain hose connector.
  As the screw is inside, be sure to use screwdriver treated with magnet.

3.3.5. Installing the indoor unit

(1)  After passing the indoor piping and drain hose through the wall hole, hang the indoor 

unit on the hooks at the top and bottom of the wall hook bracket.

Wall hook bracket

Top hooks

Indoor unit

(Fitting)

Bottom hooks

Connection pipe
(2 mm dia.)

(2)  Remove the intake grille.

1

  Open the intake grille.

2

2

1

1

Intake grille

2

  Pull down the knob.

Knob

Intake grille

3

  Lift the intake grille upward, until the axle at the top of the intake grille is removed. 

(3)  Remove the front panel.

1

  The thumb is hung on the lower part as shown in the 

fi

 gure, and it pulls to the 

front, pushing [

] mark, and bottom hooks (2 position) is removed from wall hook 

bracket.

2

  The front panel bottom is pulled to the front, and bottom hooks is removed indoor 

unit.

Screws 
(4 position)

Push

[

mark

Push

Wall hook bracket

Front panel

3

  The front panel is pulled to the front, raising the upper surface, and a front panel 

is removed.

Front panel

(4)  Insert the spacer, etc. between the indoor unit and the wall hook bracket and 

separate the bottom of the indoor unit from the wall.

Wall hook bracket

Indoor unit

Spacer

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 nitrogen gas through them.

4.1. Selecting the pipe material

 

CAUTION

  Do not use existing pipes from another refrigeration system or refrigerant.

  Use pipes that have clean external and internal sides without any contamination which 

may cause trouble during use, such as sulfur, oxide, dust, cutting waste, oil, or water.

  It is necessary to use seamless copper pipes.
  Material : Phosphor deoxidized seamless copper pipes
  It is desirable that the amount of residual oil is less than 40 mg/10 m.

  Do not use copper pipes that have a collapsed, deformed, or discolored portion 

(especially on the interior surface). Otherwise, the expansion valve or capillary tube 
may become blocked with contaminants.

  Improper pipe selection will degrade performance. As an air conditioner using R410A 

incurs pressure higher than when using conventional (R22) refrigerant, it is necessary 
to choose adequate materials.

• 

Thicknesses of copper pipes used with R410A are as shown in the table.

• 

Never use copper pipes thinner than those indicated in the table even if they are 
available on the market.

Thicknesses of Annealed Copper Pipes (R410A)

Pipe outside diameter [mm (in.)]

Thickness [mm]

6.35 (1/4)

0.80

9.52 (3/8)

0.80

12.70 (1/2)

0.80

15.88 (5/8)

1.00

19.05 (3/4)

1.20

4.2. Pipe requirement

 

CAUTION

  Refer to the installation manual for the outdoor unit for description of allowable pipe 

length and height difference.

  Use pipe with water-resistant heat insulation.

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Summary of Contents for ASHA04GACH

Page 1: ...NSTALACI N APPAREIL INT RIEUR Type montage mural interne EEV UNIDAD INTERIOR Tipo montado en pared EEV interna Pour le personnel agr uniquement nicamente para personal de servicio autorizado MANUALE D...

Page 2: ...It is recommended to use a gauge manifold with a high pressure display range 0 1 to 5 3 MPa and a low pressure display range 0 1 to 3 8 MPa Charging hose To increase pressure resistance the hose mate...

Page 3: ...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 A place from where the air can be distribu...

Page 4: ...juries If the job is done with the panel frame only there is a risk that the unit will come loose Please take care 3 3 1 Determining the piping direction The piping can be connected in the 5 direction...

Page 5: ...raising the upper surface and a front panel is removed Front panel 4 Insert the spacer etc between the indoor unit and the wall hook bracket and separate the bottom of the indoor unit from the wall Wa...

Page 6: ...rque wrench using the specified tightening method Otherwise the flare nuts could break after a prolonged period causing refrigerant to leak and generate hazardous gas if the refrigerant comes into con...

Page 7: ...arate these cable by 50 mm or more Bundling these cables together will cause miss operation or breakdown When handling PCB static electricity charged in the body may cause malfunction of the PCB Follo...

Page 8: ...en the terminal screws Do not use a screwdriver that is too small otherwise the screw heads may be damaged and prevent the screws from being properly tightened 4 Do not tighten the terminal screws too...

Page 9: ...7 0 7 7 0 7 8 0 8 8 0 8 9 0 9 9 0 9 10 1 0 10 0 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 in failure 6 FIELD SETTING There are...

Page 10: ...to 6 1 Setting the address for indoor unit address and refrigerant circuit address settings Turn the power of the indoor unit ON before starting the setting Turning on the power to the indoor units in...

Page 11: ...ion number ones place 0 5s ON 0 5s OFF FILTER indicator lamp Red Setting number 0 to 9 0 5s ON 0 5s OFF Example Function 31 Setting number 2 OPERATION indicator lamp Green TIMER indicator lamp Orange...

Page 12: ...side the indoor unit using a pull box etc as shown on below example DC power supply 12 to 24V connected unit Load resistance P C B P C B CNA01 P C B Input device 1 Input device 2 Indoor unit Indoor un...

Page 13: ...cted device 1 Connected device 2 Connected device 3 connected unit Relay Field supply Operation behavior Connector Output voltage Status CNB01 External output1 Pins 1 2 0V Stop DC 12 V Operation Exter...

Page 14: ...ng cover Screw Piping cover Screw Cable clamp Piping cover Screw 7 FINISHING CAUTION After checking for gas leaks refer to the Installation Manual of the outdoor unit perform this section Install heat...

Page 15: ...No operation After installation is completed has the proper operation and handling been explained to the user 10 ERROR CODES If you use a wired type remote controller error codes will appear on the re...

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