Mitsubishi Electric MAC-1702RA-U Installation Manual

This product is an adapter which outputs the ON/OFF signals from theair conditioner to the backup heater.CN24 (Coil rating of DC 12V,1W or less.) Userelay with reinforcedinsulationRelay1. Outline2. Backup heating functionIndoor electronicP.C. board1. How to connect the relay• Connect the connector to CN24 on the indoor electronic P.C. board.• Connect the electrical wires to the relay.2. Operation details(1) Starting conditionsWhen both a) and b) are satisfied, the relay turns ON.a) The HEAT mode is selected. (The unit operates in the HEAT modewhen the AUTO operation is selected.)b) In the figure below, the conditions for ON are satisfied. (NOTE1)(2) Releasing conditionsWhen either a) or b) is satisfied, the relay turns OFF.a) The modes other than HEAT are selected. (The unit operates inthe mode other than HEAT when the AUTO operation is selected.)b) In the figure below, the conditions for OFF are satisfied. (NOTE1)Backup heatingfunctionAmbient temperature(Default)Ambient temperature(During operation)Enabled 50 °F (10 °C ) or lessDisabled more than 50 °F (10°C ) 50 °F (10 °C ) 68°F (20 °C )Relay(heater)Room temperatureminus set temperature(Initial)Room temperatureminus set temperature(During operation)ON -3 °F (-1.5°C ) or lessOFF more than -3 °F (-1.5°C )-3°F (-1.5°C ) -1 °F (-0.5°C )Installation manualEnglishModels MAC-1702RA-UMAC-1710RA-U[FOR INSTALLER]INSTALLATION MANUALCONNECTION MANUAL[POUR L’INSTALLATEUR]MANUEL D’INSTALLATIONMANUEL DE BRANCHEMENT[PARA EL INSTALADOR]MANUAL DE INSTALACIÓNMANUAL DE CONEXIÓNHEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPANPrinted in ThailandJG79A895H01Connector Cable (CN24)CN24For details on the cable layout, refer to “Connecting anINTERFACE/CONNECTOR CABLE to the air conditioner”Provided with Indoor unit of the air conditioner.2. Connecting an connector cable to the air conditionerModels for which the mountingcord clamp is usedModels for which the fasteneris usedFastenerMountingcord clampConnection manual1. AccessoryPart name Illustration Q' tyMounting cordclamp 1Screw formounting4×16 1Fastener(for bundling thewires) 1NOTE1:The Backup heating function changes to be enabled or disabled according tothe ambient temperature.Relay (heater) turns ON or OFF by the difference between the roomtemperature and the set temperature.CN24Flow chart for setting the ambient temperature to enable/disable the backup heating functionEntering the setup mode for the ambient temperature to enable/disable the functionTurn ON the power supply.1. While pressing both OPERATION SELECT button and FAN SPEED button on the remote controller atthe same time, press RESET button.2. First, release RESET button.Hold down the other two buttons for another 3 seconds. Make sure that the COOL( )OPERATION andDRY( )OPERATION on the LCD screen shown in the right figure are displayed. Then release the buttons.Deleting the memorized abnormal condition1. Press OPERATION SELECT button, and the setup screen for the ambient temperature toenable the function will appear. *22. Press OPERATE/STOP (ON/OFF) button on the remote controller with the remote controllerheaded towards the indoor unit. *13. Press EMERGENCY OPERATION switch so that the memorized abnormal condition is deleted.Selecting the ambient temperature to enable the functionOn the setup screen for setting the ambient temperature to enable the function, press TEMP (+) orTEMP (-) button to adjust the ambient temperature to enable the function. *2 *3Setting the ambient temperature to enable the functionBefore pressing OPERATE/STOP (ON/OFF) button, make sure that no beep is heard.Press OPERATE/STOP (ON/OFF) button on the remote controller (the COOL ( ) OPERATION is displayed)with the remote controller headed towards the indoor unit. *1The beep sounds when the setup has been completed successfully.Selecting the ambient temperature to disable the functionOn the setup screen for setting the ambient temperature to disable the function, press TEMP (+) or TEMP (-)button to adjust the ambient temperature to disable the function. *2 *3Setting the ambient temperature to disable the functionBefore pressing OPERATE/STOP (ON/OFF) button, make sure that no beep is heard.Press OPERATE/STOP (ON/OFF) button on the remote controller (the DRY ( ) OPERATION is displayed)with the remote controller headed towards the indoor unit. *1The beep sounds when the setup has been completed successfully.Are both ambient temperatures to enable and disable the function set?Releasing the setup mode for the ambient temperature to enable/disable the functionPress FAN SPEED button on the remote controller with the remote controller headed towards the indoor unit. *1Setting the ambienttemperature to enablethe functionSetting the ambienttemperature to disablethe functionLit Not lit*3 When the selected temperature is below 0 degreesCelsius, the icon [ ] to the left of the temperature onthe LCD screen will be lit.[ ]Lit Not lit[ ][ ] [ ]*1 A short beep is emitted once the signal is received.*2 The COOL ( ) OPERATION and DRY ( ) OPERATIONon the LCD screen changes as follows by pressingOPERATION SELECT button.

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