background image

En-9

External
connect kit cable

Error Status Output 
connector : CNB02 (Black connector)

Operation Status Output 
connector : CNB01 (White connector)

Control Input 
(Operation/Stop or Forced stop) 
connector : CNA01 (White connector)

Rib

Fixing the wires

After connecting the terminals, thread the wires through the clasp and rib of the control box as 
circled in the 

fi

 gure below.

Then 

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 x the wires onto the control box with the provided cable tie.

Relay control board

Cable tie

11.2.5. Installing the control cover

 (1)  Attach the control cover.
 (2)  Attach the 2 screws.  

11.2.6. Labelling

Paste the wiring label beside the label for schematic diagram inside the front panel.

11.2.7. Installing the front panel and intake grille

(See “9. FRONT PANEL REMOVAL AND INSTALLATION” and “9.2. Front panel installation”)

12. SELECTING THE REMOTE CONTROLLER CUSTOM CODE

When two or more air conditioners are installed in a room and the remote controller is 
operating an air conditioner other than the one you wish to set, change the custom code 
of the remote controller to operate only the air conditioner you wish to set (4 selections 
possible).

Selecting the Remote Controller Custom Code

Use the following steps to select the custom code of the remote controller. (Note that 
the air conditioner cannot receive a signal if the air conditioner has not been set for the 
custom code.)

(1)  

Press the START/STOP (

) button until only the clock 

is displayed on the remote controller display.

(2)  

Press the MODE button for at least 5 seconds to display 
the current custom code (initially set to A).

(3)  

Press the SET TEMP. (  / 

) buttons to change the 

custom code between A

B

C

D. 

Match the code on the display to the air conditioner 
custom code.

(4)  

Press the MODE button again to return to the clock 
display. The custom code will be changed.

•  If no buttons are pressed within 30 seconds after the custom code is displayed, the 

system returns to the original clock display. In this case, start again from step 1.

• The air conditioner custom code is set to A prior to shipment.

13. FUNCTION SETTING

Perform the “FUNCTION SETTING” according to the installation conditions using the remote 
controller.

 CAUTION

•  Con

fi

 rm whether the wiring work for Outdoor unit has been 

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 nished.

•  Con

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 rm that the cover for the electrical enclosure on the outdoor unit is in place.

•  This procedure changes to the function settings used to control the indoor unit according 

to the installation conditions. Incorrect settings can cause the indoor unit to malfunction.

•  After the power is turned on, perform the “FUNCTION SETTING” according to the 

installation conditions using the remote controller.

•  The settings may be selected between the following two: Function Number or Setting 

Value.

•  Settings will not be changed if invalid numbers or setting values are selected.
•  Match the custom code of the indoor unit and the custom code of the remote controller. 

(See 12. SELECTING THE REMOTE CONTROLLER CUSTOM CODE.)

Entering the Function Setting Mode

While pressing the POWERFUL button and SET TEMP. ( ) simultaneously, press the 
RESET button to enter the function setting mode.

Selecting the Function Number and Setting Value

(1)  

Press the SET TEMP. (

 / 

) buttons to select 

the function number. (Press the MIN. HEAT button 
to switch between the left and right digits.)

(2)  

Press the POWERFUL button to proceed to setting 
the value. (Press the POWERFUL button again to 
return to the function number selection.)

(3)  

Press the SET TEMP. (

 / 

) buttons to select 

the setting value. (Press the MIN. HEAT button to 
switch between the left and right digits.)

(4)  

Press the MODE button, in the order listed to con

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 rm 

the settings.
Please con

fi

 rm that the beep sounds.

(5)  

Next, please press START/STOP (

) button.

Please con

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 rm that the beep sounds.

(6)  

Press the RESET button to cancel the function set-
ting mode.

(7)  

After completing the FUNCTION SETTING, be sure to turn off the power and turn it 
on again.

 CAUTION

After turning off the power, wait 30 seconds or more before turning on it again.

The Function Setting does not become active unless the power is turned off then on 
again.

13.1. 

Function details

Filter Sign

Select appropriate intervals for displaying the 

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 lter sign on the indoor unit according to the 

estimated amount of dust in the air of the room.
If the indication is not required, select “No indication” (03).

(

...  Factory setting)

Function Number

Setting 

Value

Setting Description

11

00

Standard (400 hours)

01

Long interval (1000 hours)

02

Short interval (200 hours)

03

No indication

Auto Restart

Enable or disable automatic restart after a power interruption.

(

...  Factory setting)

Function Number

Setting 

Value

Setting Description

40

00

Enable

01

Disable

* Auto restart is an emergency function such as for power outage etc. Do not attempt to 

use this function in normal operation. Be sure to operate the unit by remote controller or 
external device.

Function number

Setting 

value

9320456016_IM.indb   9

9320456016_IM.indb   9

12/4/2014   2:21:00 PM

12/4/2014   2:21:00 PM

Summary of Contents for ASU12RLS3

Page 1: ... fingers When Installing 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 In a Room Properly insulate any tubing run inside a room to prevent sweating that can cause drip ping and water damage to walls and floors In an Area with High Winds Securely anchor the outdoor uni...

Page 2: ...ing with conventional refrigerant R22 and for safety Therefore check beforehand The charging port thread diameter for R410A is 1 2 20 UNF Be more careful that foreign matter oil water etc does not enter the piping than with refrigerant R22 models Also when storing the piping securely seal the opening by pinching taping etc When charging the refrigerant take into account the slight change in the co...

Page 3: ...r volatile inflammables such as paint thinner or gasoline If gas leaks and settles around the unit it can cause a fire 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 grow ing plants or preserving precision devices or art objects It can degrade the quality of the preserved or stored objects Do not ...

Page 4: ...t pipes top Rear piping Indoor unit drain hose bottom No gap Hexagonal wrench Drain cock Drain cap For left outlet piping cut off the piping outlet cutting groove with a hacksaw Indoor unit drain hose Drain cap Remove the drain cap by pull ing at the projection at the end of the cap with pliers etc Removal method of drain hose Remove the screw at the left of drain hose and pull out drain hose Inst...

Page 5: ...ut correctly Tighten the flare nuts with a torque 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 contact with a flame CAUTION Connect the piping so that the control box cover can easily be removed for servicing when necessary In order to prevent water fro...

Page 6: ...erminal screw tightening torques Tightening torque lbf in N m M4 screw 11 to 16 1 2 to 1 8 CAUTION Attach the cable clamp firmly by holding the connection cable and make sure that the clamp is fixed securely Incomplete attachment of the cable clamp might cause a malfunction of the open panel Match the terminal block numbers and connection cable colors with those of the outdoor unit Erroneous wirin...

Page 7: ...roller holder Tapping screw small remote controller mounting Remote controller 2 Push 1 Set Overlap the insulation Vinyl tape Wrap with cloth tape Cloth tape Drain hose Connection cable Pipe Drain hose Drain hose Connection pipe Wall pipe Connection cable Left piping For connection from the left rear Pipe Connection pipe heat insulation Indoor unit pipe heat insulation Bind the pipes together so t...

Page 8: ...ng intake grille and front panel See 9 FRONT PANEL REMOVAL AND INSTALLATION and 9 1 Front panel removal 11 2 2 Removing control cover Screw 2 Control cover Control box Screw 1 Remove the screw 1 and 2 then remove the control cover 11 2 3 Installing relay control board and relay wire terminal Control unit board Connector CN2 Relay wire Notice 2 Clasps Connector CND01 Relay control board Clasp 2 Not...

Page 9: ...es to the function settings used to control the indoor unit according to the installation conditions Incorrect settings can cause the indoor unit to malfunction After the power is turned on perform the FUNCTION SETTING according to the installation conditions using the remote controller The settings may be selected between the following two Function Number or Setting Value Settings will not be cha...

Page 10: ...the FUNCTION SETTING be sure to turn off the power and turn it on again 13 2 Temperature correction NOTE When changing Function 95 perform this setting before other Room temp control settings Function 30 31 92 93 If Function 95 is not set first Room temperature control settings Function 30 31 92 93 will be reset and you must re do them again Heat Insulation condition building insulation Heat insul...

Page 11: ...r to the operating manual 1 Stop the air conditioner operation 2 Press the MODE button and the FAN button simultaneously for 2 seconds or more to start the test run Test run display 3 Press the START STOP button to stop the test run 15 CUSTOMER GUIDANCE Explain the following to the customer in accordance with the operating manual 1 Starting and stopping method operation switching temperature adjus...

Page 12: ...rip detection 9 5 Compressor rotor position detection error 9 7 Outdoor unit fan motor error 9 9 4 way valve error 10 1 Discharge temp error 10 3 Compressor temp error 10 4 High pressure error 10 5 Low pressure error 13 2 Branch boxes error Flexible Multi Display mode 0 5s ON 0 5s OFF 0 1s ON 0 1s OFF Number of flashing Troubleshooting with the indoor unit display OPERATION indicator green TIMER i...

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