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15. REMOTE CONTROLLER CUSTOM CODE SETTING

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).

Remote Controller Custom Code Setting

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 match-
ing 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 dis-
play the current custom code (initially set to A).

(3)  

Press the “TEMP.” (  / 

) buttons to change the cus-

tom 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.
•  Depending on the remote controller, the custom code may return to custom code A 

when the batteries are replaced. In this case, if you use a code other than A, reset 
the code after replacing the batteries. If you do not know the air conditioner custom 
code setting, try each code (A

B

C

D) until you 

fi

 nd the code which operates the 

air conditioner.

16. 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 

fi

 nished.

•  Con

fi

 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.
•  Refer to the installation manual enclosed with the wired remote controller when the 

wired remote controller (option) is used.

Entering the Function Setting Mode

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

Selecting the Function Number and Setting Value

 [Reverse cycle model]

(1)  

Press the “TEMP.” (  / 

) buttons to select the func-

tion number. (Press the “10°C HEAT” button to switch 
between the left and right digits.)

(2)  

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

(3)  

Press the “TEMP.” (  / 

) buttons to select the setting 

value. (Press the “10°C HEAT” button to switch between 
the left and right digits.)

(4)  

Press the “MODE” button once to send the function setting information. Please con-

fi

 rm the beeping sound.

(5)  

Next, please press START/STOP ( 

 ) button once to fix the function setting. 

Please con

fi

 rm the beeping sound.

(6)  

Press the “RESET” button to cancel the function setting mode.

(7)  

After completing the function setting, be sure to turn off the power and turn it on 
again.

Selecting the Function Number and Setting Value

 [Cool model]

(1)  

 Press the “TEMP.” (  / 

) buttons to select the func-

tion number. (Press the “ECONOMY” button to switch 
between the left and right digits.)

(2)  

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

(3)  

Press the “TEMP.” (  / 

) buttons to select the set-

ting value. (Press the “ECONOMY” button to switch 
between the left and right digits.)

Function Number

Setting 

Value

Function Number

Setting 

Value

(4)  

Press the “MODE” button once to send the function setting information. Please con-

fi

 rm the beeping sound.

(5)  

Next, please press START/STOP ( 

 ) button once to 

fi

 x the function setting. Please 

con

fi

 rm the beeping sound.

(6)  

Press the “RESET” button to cancel the function setting 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.

Filter sign

 Select appropriate intervals for displaying the 

fi

 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 (1,000 hours)

02

Short interval (200 hours)

03

No indication

Room temperature control for indoor unit sensor

 Depending on the installed environment, correction of the room temperature sensor may 
be required. Select the appropriate control setting according to the installed environment.
The temperature correction values show the difference from “Standard setting” (00) (manu-
facturer’s recommended value).

(

...  Factory setting)

Function Number

Setting 

Value

Setting Description

30

(For cooling)

31

(For heating)

00

Standard setting

01

No correction 0.0 °C (0 °F)

02

-0.5 °C (-1 °F)

More 

Cooling 

Less 

Heating

03

-1.0 °C (-2 °F)

04

-1.5 °C (-3 °F)

05

-2.0 °C (-4 °F)

06

-2.5 °C (-5 °F)

07

-3.0 °C (-6 °F)

08

-3.5 °C (-7 °F)

09

-4.0 °C (-8 °F)

10

+0.5 °C (+1 °F)

Less 

Cooling 

More 

Heating

11

+1.0 °C (+2 °F)

12

+1.5 °C (+3 °F)

13

+2.0 °C (+4 °F)

14

+2.5 °C (+5 °F)

15

+3.0 °C (+6 °F)

16

+3.5 °C (+7 °F)

17

+4.0 °C (+8 °F)

9387082050-02_IM.indb   10

9387082050-02_IM.indb   10

13/3/2018   PM 5:00:25

13/3/2018   PM 5:00:25

Summary of Contents for LMTA Series

Page 1: ...B CAUTION This product is not explosion proof and therefore should not be installed in explosive atmosphere To avoid getting an electric shock never touch the electrical components soon after the power supply has been turned off After turning off the power always wait 5 min utes or more before you touch the electrical components This product contains no user serviceable parts Always consult experi...

Page 2: ... screws 1 set Vinyl tape 1 Sealant 1 2 4 Optional parts Refer to each installation manual for the method of installing optional parts Parts name Model name Application Wired Remote Controller 1 UTY RVN M For air conditioner operation 3 wire type Wired Remote Controller 2 UTY RNR Z For air conditioner operation 2 wire type Wired Remote Controller 2 UTY RLR For air conditioner operation 2 wire type ...

Page 3: ...ote control 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 Install the indoor unit on the wa...

Page 4: ... Use a hexagonal wrench 4 mm at opposite side to insert the drain cap till the drain cap contacts the tip of the drain cock No gap Hexagonal wrench Drain cock Drain cap CAUTION Insert the drain hose and drain cap into the drain port making sure that it comes in contact with the back of the drain port and then mount it If the drain hose is not connected properly leaking will occur For left piping a...

Page 5: ... nuts could break after a prolonged period causing refrigerant to leak and generate hazardous gas if the refrigerant comes into contact with a flame Connect the piping so that the control box cover can easily be removed for servicing when necessary In order to prevent water from leaking into the control box make sure that the piping is well insulated When the flare nut is tightened properly by you...

Page 6: ... indoor unit to the outdoor unit unless it is specified 8 FINISHING 1 Insulate between pipes Insulate suction and discharge pipes separately For rear right and bottom piping overlap the connection pipe heat insulation and indoor unit pipe heat insulation and bind them with vinyl tape so that there is no gap 2 Temporarily fasten the connection cable along the connection pipe with vinyl tape Wrap to...

Page 7: ...e heat exchanger When installing or removing parts of the air conditioner be sure that the wire is not caught by any parts or pulled hard It may result in damage or malfunction of the air conditioner 4 Remove 10 screws Screws Wire cover Screws 10 places Caps 4 places Wire cover NOTES When replacing the front panel do not scratch or damage the louver 5 The front panel is pulled to the front raising...

Page 8: ...bles to be installed Output voltage Hi DC12V 2V Lo 0V Permissible current 50mA Output select When interlocking with external device Connector CN3 PCB Connected device Relay Locally purchased or When displaying Operation Stop Connector CN3 PCB Connected device Resistor LED Operation behavior If function setting 60 is set to 00 Refer to 16 FUNCTION SETTING 12 1 3 Connection methods Wire modification...

Page 9: ... type Y1Y2 Remote controller cable Remote controller PCB or terminal block for wired remote controller Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 4 2 Set the R C address Function setting a 2 wire type Automatic setting Addresses will be automatically set when initially starting up this unit In such a case do not change the R C address of the indoor unit and keep it at the initial settin...

Page 10: ...10 C HEAT button to switch between the left and right digits 2 Press the POWERFUL button to proceed to setting value Press the POWERFUL button again to return to the function number selection 3 Press the TEMP buttons to select the setting value Press the 10 C HEAT button to switch between the left and right digits 4 Press the MODE button once to send the function setting information Please con fir...

Page 11: ... 01 Factory setting Function Number Setting Value Setting Description 48 00 Both 01 Wired remote controller Indoor unit fan control for energy saving for cooling Enables or disables the power saving function by controlling the indoor unit fan rotation when the outdoor unit is stopped during cooling operation Factory setting Function Number Setting Value Setting Description 49 00 Disable 01 Enable ...

Page 12: ...ror 3 5 Manual auto switch error 4 1 Room temp sensor error 4 2 Indoor unit Heat Ex Middle temp sensor error 5 1 Indoor unit fan motor error 5 3 Drain pump error 5 7 Damper error 5 8 Intake grille error 5 15 Indoor unit error 6 2 Outdoor unit main PCB model information error or communication error 6 3 Inverter error 6 4 Active filter error PFC circuit error 6 5 Trip terminal L error 6 10 Display P...

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