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REMOTE CONTROL
USER'S MANUAL
Thank you very much for your purchasing the REMOTE CONTROL for our
packaged air conditioner.
This user's manual describes cautions for safety. Please read this manual carefully before use in order to operate the unit properly.
Keep this manual, after reading, at a safe place where you can consult it whenever it is necessary.
When the ownership of the unit is changed, please be sure to transfer this manual and the "Installation Manual" to a new owner.
It is not recommended for a user to install or move the unit by the user's own discretion. (Safety or functions may not be assured.)
Original Instructions
RC-EX3D / RC-EXZ3D
PJZ012A232
202403 A
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Table of Contents
Related Manuals for Mitsubishi Heavy Industries RC-EXZ3D
Summary of Contents for Mitsubishi Heavy Industries RC-EXZ3D
- Page 1 Original Instructions REMOTE CONTROL RC-EX3D / RC-EXZ3D USER'S MANUAL Thank you very much for your purchasing the REMOTE CONTROL for our packaged air conditioner. This user's manual describes cautions for safety. Please read this manual carefully before use in order to operate the unit properly.
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Page 3: Table Of Contents
Contents 1. Before you use ……………………… 2 Safety precautions ………………………………………… 2 Precautions for waste disposal …………………………… 3 Unit specifications ………………………………………… 3 Names and functions of sections on the R/C …………… 4 Menu item …………………………………………………… 6 2. Menu items …………………………… 8 Run ……………………………………………………………... -
Page 4: Before You Use
1. Before you use Safety precautions ● Please read the precautions written here carefully to operate the unit properly. You are required to observe these fully because every item of these instructions is important for safety. Failure to follow these instructions may result in serious consequences WARNING such as death, severe injury, etc. -
Page 5: Precautions For Waste Disposal
Do not wash the remote control with water or liquid. It could cause electric shocks, fire or break-down. Do not touch electric parts or operate buttons or screens with wet hands. It could cause electric shocks, fire or break-down. Do not dispose the remote control by yourself. It could destruct the environment. -
Page 6: Names And Functions Of Sections On The R/C
Names and functions of sections on the R/C (Operating section) 5 LCD (With backlight) 3 F2 switch 4 Operation lamp 6 USB port (mini-B) Run/Stop switch 2 F1 switch Touch panel system, which is operated by tapping the LCD screen with a finger, is employed for any operations other than the 1 Run/Stop, 2 F1 3 F2 switches. - Page 7 Names and functions of sections on the R/C (Display) ∗All icons are shown for the sake of explanation. 1 Clock, Room name display 2 Icon display TOP screen 3 Menu button 5 Change set temp button 4 Change operation 6 Change flap mode button direction button 8 Timer button...
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Page 8: Menu Item
Menu item Main menu Basic operation Run ………………………………………………………………………………………… 8 Stop ………………………………………………………………………………………… 8 Change operation mode ………………………………………………………………… 9 Change set temp ………………………………………………………………………… 9 Change flap direction …………………………………………………………………… 10 Change the fan speed …………………………………………………………………… 13 Zone ON/OFF operation ………………………………………………………………… 13 Zone name setting………………………………………………………………………… 14 F1, F2 switch operation ……………………………………………………………………... -
Page 9: Main Menu
Main menu Service setting Installation settings Installation date ………………………………………………………… 28 Company information …………………………………………………… 28 Test run …………………………………………………………………… 28 Static pressure adjustment ……………………………………………… 28 Change auto-address …………………………………………………… 28 Please refer to the Address setting of main IU ……………………………………………… 28 installation manual. IU back-up function ………………………………………………………... -
Page 10: Menu Items
2. Menu items Push the Run/Stop switch. Operation lamp (green) lights and operation starts. Stop Press the Run/Stop switch while the unit is in operation. The operation lamp turns off and the operation stops. When the operation stops, all operation buttons on the screen turn off. When the set lighting time of backlight ( ☞... -
Page 11: Change Operation Mode
Change operation mode Tap the Change operation mode button on the TOP screen. When the Change operation mode screen is displayed, tap the button of desired mode. Change operation mode The operation mode changes, and the display returns to the TOP Cooling screen. -
Page 12: Change Flap Direction
When the Change set temp screen is displayed, select the temperature as desired with using ▲ ▼ buttons. Change set temp After selecting the set temp, tap the button. The display Auto returns to the TOP screen. ■For allowable temperature setting ranges, refer to the range setting of set temp (☞page 63). - Page 13 When one or more FDKs with a left/right flap are connected, the Select flap screen is displayed. Select the desired flap direction. Select flap Left/right flap Upper/lower flap 1 To change the up/down flap direction, tap the Upper/lower flap button. The Change flap direction screen for the up/down flap is displayed.
- Page 14 ■ When multiple IUs are connected to the remote control for a mixed environment consisting of FDKs with a left/right flap and IUs without a left/right flap, enabling the 3D auto flow operation will set the models without a left/right flap to a flap position set before the 3D auto flow operation was started.
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Page 15: Change The Fan Speed
Change the fan speed Tap the Change the fan speed button on the TOP screen. When the Change the fan speed screen is displayed, tap the button of desired fan speed. Change the fan speed After setting the fan speed, the display returns to the TOP screen. ■... -
Page 16: Zone Name Setting
Zone name setting (for zone control) Tap the Menu button on the TOP screen and select User setting ⇒ Administrator settings . The administrator password input screen is displayed. Enter the administrator password. When the administrator setting menu is displayed, select R/C display setting ⇒... -
Page 17: F1/F2 Switch Operation
The zone name input screen is displayed. The zone name can be set with up to 8 2-byte letters (16 1-byte letters). You can enter alphanumeric or Cyrillic. Tap the Back or Next button to display next character group. When you have finished inputting the room name, tap The zone name that was set is displayed on the zone operation screen. -
Page 18: Anti Draft On/Off Operation
Anti draft ON/OFF operation (for using panel with anti draft) Anti draft can be turned ON/OFF (operated/stopped) with a single tap of the button. To turn ON/OFF the anti draft with the F1 or F2 switch, the anti draft ON/OFF function needs to be preset to the F1 or F2 switch. -
Page 19: High Power Operation
High power operation The high power operation adjusts the room temperature quickly to a pleasant level by increasing the operation capacity. The high power operation continues for 15 minutes at the maximum and returns to the normal operation automatically. When the operation mode is changed, the high power operation returns to the normal operation, too. High power operation must be set to the F1 or F2 switch ( ☞... -
Page 20: Energy-Saving Operation
Energy-saving operation Use this operation to save energy. Set temp is fixed at 28°C in the cooling operation or 22°C in the heating operation. Since the capacity is controlled automatically based on the outdoor temperature, energy can be saved without losing comfort. -
Page 21: Quick Reference Of Menu Items
3. Quick reference of menu items Quick reference of menu items It is necessary to input the Administrator password for menu items showing. Setting and display items Details Useful functions Individual flap control Set the moving range (upper and lower limit positions) of the flap at each blow outlet of IU. - Page 22 Setting and display items Details Filter Filter sign reset Reset the filter sign. page 82 Set next cleaning date. User setting Initial settings Clock setting Set and correct the current date and time. ■ When the power supply is interrupted for 80 hours or less, the clock continues to operate with the built-in backup page 38 batteries.
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Page 23: Restrictions On The Sub R/C
Restrictions on the sub R/C When one IU is controlled with 2 R/Cs, the following settings cannot be made on the sub R/C. It is necessary to use the main R/C. In case of the sub R/C, the icon S is displayed on the R/C screen. ○: operable ×: not operable R/C operations Main... -
Page 24: Operations On Menu Screens
Operations on menu screens Tap the Menu button on the TOP screen. Main menu screen is displayed. When a desired menu item is tapped, setting screen for each item is displayed. When there are two or more pages, the Next button is displayed at the leading page and the Previous button is displayed at the last page. -
Page 25: Cautions For Each Setting Screen
When an item is referenced to Administrator password in this manual, the Input password screen is displayed after selecting the Input password menu. Input the administrator password. Enter the administrator password (4-digit number) and tap the Delete button. When the password is unknown or wrong, the setting cannot be changed. -
Page 26: Settings And Operations
4. Settings and operations Energy-saving setting [Administrator password] Tap the Menu button on the TOP screen and select Energy-saving setting Energy-saving setting . The Energy-saving setting menu Sleep timer screen is displayed. Peak-cut timer Automatic temp set back When the Energy-saving setting screen is displayed, select a desired Motion sensor control item. - Page 27 ■ Peak-cut timer Set the times to start and stop the capacity (upper limit) limiting operation and the peak-cut %. Advice · When the peak-cut timer is used, be sure to make the Clock setting in advance (☞page 38). · The peak-cut timer control may not be performed depending on combination of IU and OU. Tap the Menu button on the TOP screen and select...
- Page 28 Screen to check contents of current setting is displayed. When the contents are changed or new setting is added, select a 1 Peak-cut timer setting line No. and tap the 2 Change button. State Start time End time Enable 7:00 PM 8:00 PM Disable 7:00 AM...
- Page 29 Set the peak-cut %. Set the peak-cut % with the ▲ ▼ buttons. Peak-cut timer The peak-cut % can be set at 0%, 40%, 60% or 80%. Wed: No.1 The lower the peak-cut % is, the higher the effect of Peak-cut energy-saving becomes.
- Page 30 ■ Automatic temp set back It returns to the set temperature when the set time is counted up. Tap the Menu button on the TOP screen and select Automatic temp set back . The Energy-saving setting Automatic temp set back ⇒...
- Page 31 ■ Motion sensor control (for IUs with motion sensors) Presence of humans and the amount of motion are detected by a motion sensor to perform various controls. ■When the R/C is set as the sub R/C, the motion sensor control cannot be set. Tap the Menu button on the TOP screen and select Energy-saving setting ⇒...
- Page 32 Use the button to set the time, and tap the ▲ ▼ button. You can set the time between 1 to 50 hours in 1-hour intervals. Temporarily set the period required between the time when it continuously judges that there are no human after the "Operation wait"...
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Page 33: Individual Flap Control
Individual flap control Motion range (upper, lower, left, or right limit positions) of the flap at each blow outlet can be set to a desired range. ■When the R/C is set as the sub R/C, the individual flap control cannot be set. Tap the Menu button on the TOP screen and select... - Page 34 Select the number of the flap of which the motion range is changed. ( ☞ 4) №② ■When there are two or more flaps at the blow outlet, such as the FDT type, the flap at blow outlet No. 1 will keep moving while the blow 制...
- Page 35 Select one of the lower limit positions from 1 to 6 for the flap Flap1 Swing range motion range. The range of motion between the upper and lower limit positions will be displayed in black. After you select the range, tap the button.
- Page 36 Select one of the right limit positions from 1 to 5 for the flap Flap2 Swing range motion range. The range of motion between the left and right limit positions will be displayed in black. After you select the range, tap the button.
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Page 37: Anti Draft Setting
Anti draft setting (for using panel with anti draft) You can set ON/OFF (operation/stop) of the anti draft function and can also enable/disable the motion of panel with anti draft for each blow outlet for each operation mode. ■When the R/C is set as the sub R/C, the anti draft setting cannot be set. Tap the Menu button on the TOP screen and select... - Page 38 Select the blow outlet number to set anti draft. ■ The flap at blow outlet No. 1 will keep moving while the blow outlet selection screen is displayed. Select the flap based on this figure. When you have selected the blow outlet, the flap with the number you selected will move. The figure displayed on the screen shows the installed unit viewed from the floor side.
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Page 39: Ventilation Operation
■ ON/OFF setting The indoor unit No. and the ON/OFF state of each anti draft function are displayed to allow ON/OFF setting of the anti draft. Anti draft is turned OFF by tapping ON and turned ON by tapping OFF. When two or more indoor units equipped with anti draft function are connected to the R/C, the two or more indoor units are displayed. -
Page 40: Initial Settings
Initial settings Tap the Menu button on the TOP screen and select User setting ⇒ Initial settings . When the “Initial settings” menu screen is displayed, tap a desired Initial settings item. Clock setting • Clock setting …… ☞ page 38 Date &... - Page 41 Set the “hour : minute” with the ▲ ▼ buttons on the clock setting screen. Clock setting Tap the button after the setting. To change “dd/mm/yy” tap the Date button. Date Back Set the time. ■ Date & time display You can set and correct the date &...
- Page 42 ■ Summer time You can adjust the current time by one hour. Tap the Menu button on the TOP screen and select User setting Initial settings ⇒ ⇒ Summer time . The Summer time setting screen is displayed. Changing from Disable to Enable … (Current time + 1 hr) is Summer time displayed.
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Page 43: Backlight
■ Backlight You can turn ON/OFF the backlight and set the lighting period. Tap the Menu button on the TOP screen and select User setting Initial settings ⇒ ⇒ Backlight . The Backlight setting screen is displayed. Tap the ON or OFF buttons for the backlight lighting and the lighting Backlight Period (5 - 90 sec, at 5-sec intervals). -
Page 44: Timer
■ Operation lamp luminance You can adjust the operation lamp luminance. Tap the Menu button on the TOP screen and select User setting Initial settings ⇒ ⇒ Operation lamp luminance The Operation lamp luminance adjustment screen is displayed. You can adjust the luminance of the operation lamp to a desired Operation lamp luminance level by tapping the ▲... - Page 45 ■Operation of each timer • Sleep timer (☞page 24) Stops the operation of the unit when the amount of time set has elapsed since the start of the operation. When the setting is enabled, this timer will activate whenever any operation starts. •...
- Page 46 … ☞ ■Warming up setting can be made with the main R/C only. ■Set the operation mode before setting the set temperature. ( ∗ ) RC-EXZ3D only Advice Warming up · To warm up the room temperature closed to the set temperature at the set start time of the operation, the microcomputer estimates the start time of the operation based on the last warming up operation and starts the operation 5 to 60 minutes earlier.
- Page 47 Tapping the Zones button makes it possible to perform zone operation settings at the time of timer working. Set No setting / (No setting/OPEN/CLOSE) for each zone during timer operation. (∗) RC-EXZ3D only → No setting → → OFF Setting No setting will operate in the previous zone state at the time of timer working.
- Page 48 (The Zones button is not displayed when not performing zone settings. Proceed to step 4.) (∗) RC-EXZ3D only After the setting, tap the button. The display returns to the Timer menu screen.
- Page 49 … ☞ ■Warming up setting can be made with the main R/C only. ■Set the operation mode before setting the set temperature. ( ∗ ) RC-EXZ3D only Advice Warming up · To warm up the room temperature closed to the set temperature at the set start time of the operation, the microcomputer estimates the start time of the operation based on the last warming up operation and starts the operation 5 to 60 minutes earlier.
- Page 50 Tapping the Zones button makes it possible to perform zone operation settings during timer operation. Set No setting / (No setting/OPEN/CLOSE) for each zone at the time of timer working. (∗) RC-EXZ3D only → No setting → → OFF Setting No setting will operate in the previous zone state at the time of timer working.
- Page 51 (The Zones button is not displayed when not performing zone settings. Proceed to step 4.) (∗) RC-EXZ3D only After the setting, tap the button. The display returns to the Timer menu screen.
- Page 52 ■ Weekly timer You can set four on timer and off timer operations for each day of the week. Advice · The Clock setting (☞page 38) must be made when the weekly timer is used. · The weekly timer can be set from the main R/C only. Tap the Menu button on the TOP screen and select...
- Page 53 ( ☞ 7) 5 The Zones button is displayed when performing zone settings. Tapping the Zones button will display the set zone states. ( ☞ 11) (∗) RC-EXZ3D only ─ 51 ─...
- Page 54 Set the following operating conditions. 1 Warming up ON/OFF Weekly timer Details (Operation starts 5 to 60 minutes earlier in order to warm up the Cooling Set temp room temperature closed to the set temp at the set start time of Warming up operation.) 2 Operation mode …...
- Page 55 After the setting, tap the button. The display returns to the previous screen. ( ∗ ) RC-EXZ3D only After setting desired contents at the screen of 7, tap the button. Display the setting contents check screen. To register the setting, tap the Enter button.
- Page 56 ■The Next button is displayed when performing zone settings. Tapping the Next button will display the set zone states. ( ∗ ) RC-EXZ3D only ■Tapping the Next button will display Zone5~8. ( ∗ ) RC-EXZ3D only ─ 54 ─...
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Page 57: Home Leave Mode
Home leave mode [Administrator password] Use this function to maintain the room temperature at a moderate level for avoiding extremely hot or cool after leaving home. ■Cooling and heating operations are controlled according to the outdoor air temperature. ■The set temperature and fan speed can be set. Advice ·... - Page 58 Note Home leave mode will be ended when you perform one of the following. • When you switch the run/stop of the A/C. (Including the operation by timer) • When you change the set temperature. • When you change the operation mode. [To change the operation conditions] Tap the Menu...
- Page 59 Set the outdoor temperature for the “Determine temp rule in cooling”. Select a desired setting temperature (26°C to 35°C, at 3°C intervals). Determine temp rule in cooling ▲▼ with the ▲ ▼ buttons. to set offset value. Tap the button after the setting. Back Set the outdoor temperature for the “Determine temp rule in heating”.
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Page 60: Registering Favorite Settings
Set the fan speed in cooling mode. Tap a desired fan speed. Fan speed rule in cooling Back Select the fan speed. Set the fan speed in heating mode. Tap a desired fan speed. Fan speed rule in heating Back Select the fan speed. -
Page 61: Favorite Setting Operation
The save location selection screen for favorite settings is displayed. Select the save location. If there is any data that was previously saved, that data will be overwritten. Favorite setting operation You can start an operation with the operation mode, set temp, fan speed, flap direction registered to Favorite set 1 and Favorite set 2. -
Page 62: Administrator Settings
Administrator settings [Administrator password] Tap the Menu button on the TOP screen and select User setting ⇒ Administrator settings The administrator password input screen is displayed. Enter the administrator password. When the administrator setting menu is displayed, tap a desired Administrator settings item. - Page 63 ■ Permission/Prohibition setting Tap the Menu button on the TOP screen and select User setting ⇒ Administrator settings ⇒ Permission/Prohibition setting . The Permission/Prohibition setting menu is displayed. Following items can be selected, and the Permission or Prohibition Permission/Prohibition setting can be set for them.
- Page 64 Permission Prohibition for each item. Run/Stop Permission Prohibition Back Select the item. ■ Outdoor unit silent mode timer Set the period of time to operate the OU with prioritizing the quietness. When the Outdoor unit silent mode timer setting is Enabled, the silent mode operation starts and ends everyday at the same time until the setting is Disable.
- Page 65 Set the start time for the Outdoor unit silent mode timer. Select a desired time (at 5-min intervals) with the ▲ ▼ Outdoor unit silent mode timer Start time buttons. If the Set button is tapped after setting the start time, the display changes to the end time setting screen.
- Page 66 Set the range of setting temperature in the cooling operation. Menu Select at desired lower and upper limit temperatures (at 1°C Setting upper/lower limit temp in cooling intervals) with the ▲ ▼ buttons. Cool/Dry/Fan lower limit upper limit After Selecting the desired settings, tap the Set button. Back ▲▼...
- Page 67 ■ Temp increment setting Temperature increment for the change of the set temp can be changed. Tap the Menu button on the TOP screen and select User setting Administrator settings ⇒ ⇒ Temp increment setting The Temp increment setting screen is displayed. Tap a desired temperature increment.
- Page 68 ■ R/C display setting Contents of display on the R/C can be changed. Tap the Menu button on the TOP screen and select User setting Administrator settings ⇒ ⇒ R/C display setting . The R/C display setting menu screen is displayed. R/C display setting 1 Room name …...
- Page 69 1 Room name Set the room name to be displayed on the TOP screen. Tap the Menu button on the TOP screen and select User setting Administrator settings ⇒ ⇒ R/C display setting Room name . ⇒ The Room name input screen is displayed. The room name can be set with up to 9 2-byte letters (18 1-byte letters).
- Page 70 When the letter selection screen is displayed same as at the setting of the name of R/C ( ☞ page 67), enter letters. The name of IU can be entered up to 4 2-byte (8 1-byte) letters. When the input is over, tap the button.
- Page 71 When R/C sensor setting is enabled, the room temperature (R/C) MEETING1 °C is displayed (refer to the installation manual on how to make Menu 16:00 (Mon) these settings). Direction Auto Set temp Timer Room(R/C) In operation for running. F1: High power F2: Energy-saving 4 Error code display Select ON/OFF for the Error code display.
- Page 72 6 Defrost operation display When frost on the OU heat exchanger is accumulated and the conditions for start defrosting are established, the defrost operation control is performed automatically. Select ON/OFF for the Defrost operation display. Tap the Menu button on the TOP screen and select User setting Administrator settings ⇒...
- Page 73 8 Display temp of R/C, Room, Outdoor Select ON/OFF for the display of the R/C sensor temperature, room temperature and outdoor temperature. Tap the Menu button on the TOP screen and select User setting Administrator settings ⇒ ⇒ R/C display setting Display temp of R/C, Room, Outdoor ⇒...
- Page 74 ■ F1/F2 function setting Use the F1 and F2 switches to change the functions to operate. Advice • When using a standard FDT/FDTC panel (a panel without anti draft function), set functions other than the Anti draft ON/OFF function to the F1 and F2 switches.
- Page 75 ■ Refrigerant leak detector setting Set the various settings related to the refrigerant leak detector. Tap the Menu button on the TOP screen and select User setting Administrator settings ⇒ ⇒ Refrigerant leak detector setting . Advice • The Refrigerant leak detector setting can be set from the main R/C only. •...
- Page 76 Set the LED brightness. 1 Normal ... 100% brightness. 2 Low 1 ... 75% brightness. 3 Low 2 ... 50% brightness. Set the threshold for refrigerant density alarm. 1 High ... The same level as the concentration when refrigerant leak is detected. 2 Normal ...
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Page 77: Silent Mode Control
Silent mode control The OU is controlled with priority on quietness. You can start/stop the silent mode control. Menu [Starting control with button] Tap the Menu button on the TOP screen and select Useful functions Silent mode control ⇒ The administrator password input screen is displayed. Enter the administrator password. -
Page 78: Select The Language
Select the language to be displayed on the R/C and tap the button. You can select from the following languages: RC-EX3D: English/German/French/Spanish/Italian/Dutch/Turkish/ Portuguese/Polish RC-EXZ3D: English/German/French/Spanish/Italian/Dutch [Selecting the language with the Menu button] Tap the Menu button on the TOP screen and select... -
Page 79: Auto Anti Draft Ctl
Auto anti draft ctl You can set each blow outlet operation for auto anti draft ctl and can also enable/disable for allow to air flow volume ■When the R/C is set as the sub R/C, the auto anti draft ctl cannot be set. Tap the Menu button on the TOP screen and select... - Page 80 ■ Flap selection Select the blow outlet number to set auto anti draft ctl. ■ The flap at blow outlet No. 1 will keep moving while the blow outlet selection screen is displayed. Select the flap based on this figure. When you have selected the blow outlet, the flap with the number you selected will move.
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Page 81: Wireless Interface Setting
Wireless interface setting Set the various settings related to the wireless interface. ■When the R/C is set as the sub R/C, the wireless interface setting cannot be set. Tap the Menu button on the TOP screen and select Useful functions ⇒... - Page 82 ■ After setting using the R/C, you need to set from the application "Smart M-Air". For information about how to install and operate "Smart M-Air", refer to the "WF-PAC-E" manuals on the MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. website. HP: http://www.mhi-mth.co.jp/en/products/detail/ air-conditioner_users_manual.html...
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Page 83: Control Mode & Eco Level
Control mode & Eco level Automatically controls the capacity depending on the R/C set temperature and the indoor temperature, which enables the energy-saving operation without sacrificing comfort. ■When the R/C is set as the sub R/C, the control mode & eco level cannot be set. Tap the Menu button on the TOP screen and select... -
Page 84: Filter Sign Reset
Filter sign reset In order to announce the time for cleaning of the air filter, the message of “Filter cleaning. Touch here.” is displayed when the cumulative operation time of the IU reaches the preset time. After you clean the filter, you must reset the operation time. Tap the message display on the TOP screen. -
Page 85: Maintenance Of Unit And Lcd
5. Maintenance of unit and LCD Maintenance of unit and LCD ■Wipe the surface of LCD and main body of the remote control with a dry cloth when cleaning is required. ■If the dirt on the surface cannot be removed, soak the cloth in neutral detergent diluted with water, squeeze the cloth tightly, and clean the surface. -
Page 86: Useful Information
6. Useful information Contact company & Error display If any error occurs on the air conditioner, the “Unit protection stop” is indicated on the message display. Take the following measures, stop the operation and consult your dealer. "Prot.stp.ON E Touch here for contact. History can be checked from Menu."... -
Page 87: Notice Of Inspection Date
7. Notice of inspection date If the next service date is set on the Service & Maintenance menu by your dealer, the following screen is displayed for 5 seconds at the start of operation and for 20 seconds from the end of operation on the beginning of the month which includes the set date. - Page 88 ■ “In operation for defrosting.” display When frost forms on the OU, the heating performance will decrease. Menu This will cause the unit to automatically switch to defrost operation, and 20:20 (Tue) hot air will stop blowing out from the IO. Direction Heating Set temp...
- Page 89 ■ “During condensation prevention control.” display If the humidity around the IU is high, the fan speed and flap direction may differ from the set fan speed and flap direction in order to prevent condensation forming on the IU, and the anti draft may close. In that case, the message "During condensation prevention control."...
- Page 90 ■ “Power control ON” display This is displayed in the message display area when power control of the motion sensor control ( ☞ page 29) is enabled and power control is executed. Also, the corrected temperature is displayed for Set temp by power control.
- Page 91 ■ “In temporary stop mode”, “In forced thermostat OFF”, “In setting temperature shift” displays These messages will be displayed when the unit is operated through IU Menu external input. 16:32 (Mon) This does not indicate a failure; the message indicates that the unit is Direction Cooling Set temp...
- Page 92 ■ “Periodical check” display (for equipment PAC) “Periodical check" may be displayed on the message display area when the total number of operation hours of the IU reaches the set time to notify you that it is time to replace the fan belt. If "Periodical check"...
- Page 93 ■ “Refrigerant is leaking. Ventilate room.” message display This message is displayed if the refrigerant sensor detects a refrigerant leak. Extinguish fire on combustion appliances, then ventilate the room. Please note that the IU fan may operate automatically. Call the phone number shown to inform us of the content of the message.
- Page 94 If you want to turn off the message, tap the message display area while the message is being displayed. The Refrigerant sensor sign reset screen is displayed. Tap the button. If you do not want to reset, tap the Back button.
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Page 95: After-Sale Service
9. After-sale service ● Inform your dealer ● Repairs after Warranty Period Consult your dealer. Fare-paying services may be possible at ●Model name the request of customer. ●Date of installation (The warranty period is one year counting from the date of ●Failure conditions: As precise as possible.
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