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Panasonic CS-MKS12NKU Service Manual

1. eomm 5 1 OPERATING RANGE 6 2 SPECIFICATIONS 2 1 Unit Specifications 7 2 2 Major Component Specifications 17 2 3 Other Component Specifications n 22 3 DIMENSIONAL BP AMEEEE 23 4 REFRIGERANT FLOW DIAGRAM 4 1 Refrigerant Flow Diagram nmm 25 5 PERFORMANCE DATA 5 1 Air Throw Distance Charts 26 6 ELECTRICAL DATA 6 1 Electric Wiring Diagrams 31 7 FUNCTIONS 75 Operation MP 32 7 2 Protective Functions a wie Wk GEE 34 8 TROUBLESHOOTING BEFORE CALLING FOR SERVICE 8 1 Precautions before Performing Inspection or Repair ee n 35 8 2 Method of Self Diagnostics 35 8 3 Checking the Indoor and Outdoor UNITS mH HH IHM Henn 38 8 4 Trouble Diagnosis of Fan Motor X 41 8 5 Noise Malfunction and Electr
2. 5 USING THE REMOTE CONTROLLER 10 OPERATION WITH THE REMOTE CONTROLLER 12 1 Operation 12 2 Adjusting the Fan 13 13 4 Night Setback 14 gt ss ukasaaqassnhaskuiskun 15 6 HIGH POWER 15 PRODUCT INFORMATION If you have problems or questions concerning your Air Conditioner you will need the following information Model and serial numbers are on the nameplate on the bottom of the cabinet Model No Serial No Date of purchase Dealer s address Phone number e Air Sweep Control This function moves a flap up and down in the air outlet directing air in a sweeping motion around the room and providing comfort in every corner e Auto Flap Control This automatically sets the flap to the optimum position during heating cooling and drying operation e Automatic Restart Function for Power Failure Even when power failure occurs preset programmed operation can be reactivated once power resumes High Power Operation The unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High Quiet Operation The fan rotates slower than the
3. Stop The temperature is set to the room temperature minus 4 F during the cooling operation and the fan speed and flap are set to Auto CARE AND CLEANING For safety be sure to turn the air conditioner off and also to disconnect the power before cleaning Do not pour water on the indoor unit to clean it This will damage the internal components and cause an electric shock hazard Clean the casing and grille of the indoor unit with a vacuum cleaner brush or wipe them with a clean soft cloth If these parts are stained use a clean cloth moistened with a mild liquid detergent When cleaning the grille be careful not to force the vanes out of place 1 Never use solvents or harsh chemicals when cleaning the indoor unit Do not wipe the plastic casing using very hot water 2 Some metal edges and the fins are sharp and may cause injury if handled improperly be especially careful when you clean these parts 3 The internal coil and other components of the outdoor unit must be cleaned every year Consult your dealer or service center 21 CARE AND CLEANING CONTINUED Filter The filter behind the air intake grille should be checked and cleaned at least once every two weeks How to remove the filter 1 Grasp both ends of the air Air intake grille intake grille and remove it by opening towards the front and pulling towards you 2 Remove the filter attached to the rear of the air intake g
4. OFF Timer OFF 1 hour OFF Timer 5 NIGHT SETBACK 6 Confirmation of transmission 7 Auto fla dication Flap angle indication Sweep indication 8 High power operation 9 Quiet operation REMOTE CONTROLLER Transmitter Display QUIET button FAN SPEED selector button FLAP button ON TIME Advance button setting buttons Return button CANCEL button SENSOR button LE LI c ONO OFS AM THEM TATA 0001 0001 OB Sensor Cover closed ON OFF operation button 1 HR TIMER button Temperature setting buttons TEMP MODE selector button NIGHT SETBACK button HIGH POWER button Advance button a TIME Return button setting buttons CLOCK button Time display selector button lt J ACL butt ADDRESS switch utton Temperature display selector button NOTE The illustration above pictures the remote controller after the cover has been opened Transmitter When you press the buttons on the remote controller the mark appears in the display to transmit the setting changes to the receiver in the air conditioner Sensor A temperature sensor inside the remote controller senses the room temperature Information on the operating conditions is displayed while the remote controller is switched on If the unit is turned off FLAP setting and FAN SPEED setting are
5. 2 ee i o o o o c o o o 3 4 Removing and Installing the Grille Arima o al 3 4 1 Indoor unit types CS MKS7NKU CS MKS9NKU CS MKS12NKU Basically these models can be installed and wired without removing the grille If access to any internal part is needed follow the steps as given below CAUTION Be sure to wear work gloves during installation to avoid being cut by the sharp aluminum fins of the heat exchanger How to remove the grille 1 Grasp both ends of the air intake grille and remove it by Gover po opening towards the front and pulling towards you Fig Fig 16b 16a 2 Remove the 2 screws Fig 16b Thermistor Cover 3 Remove the screw on the right side cover plate and open the cover Fig 17 4 Take out the thermistor from the grille Fig 17b 5 Pull the lower part of the grille toward you to remove Fig 18a 6 Use a standard screwdriver to push on the tabs to remove the grille How to replace the grille 1 Reinstall the grille into the lower part while aligning its tabs on the upper part Fig 18b Insert the tabs in the slots and push the lower part of the grille back into position 2 Make sure that the grille and frame are firmly fitted together by engaging the tabs 3 Attach the thermistor on the grille
6. OB Sensor Cover closed ON OFF operation button 1 HR TIMER button Temperature setting buttons TEMP MODE selector button NIGHT SETBACK button HIGH POWER button Advance button a TIME Return button setting buttons CLOCK button Time display selector button lt J ACL butt ADDRESS switch utton Temperature display selector button NOTE The illustration above pictures the remote controller after the cover has been opened Transmitter When you press the buttons on the remote controller the mark appears in the display to transmit the setting changes to the receiver in the air conditioner Sensor A temperature sensor inside the remote controller senses the room temperature Information on the operating conditions is displayed while the remote controller is switched on If the unit is turned off FLAP setting and FAN SPEED setting are not displayed Display QUIET button When you press this button the fan rotates slower than the fan speed setting to provide a quieter operating sound ON OFF operation button This button is for turning the air conditioner on and off 1 HR TIMER button 9 When you press this button regardless of whether the unit is operating or 1 HOUR OFF TIMER stopping the unit operates for one hour and then shuts down REMOTE CONTROLLER CONTINUED Temperature setting buttons TEMP MODE selector button DRY COOL FAN FAN
7. Q ty Dia and Length inch mm 1 D3 5 8 L24 31 32 092 L634 8 _ Coil Resistance Ohm Ambient Temp 68 F 20 C Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor Micro F esa O Flap Motor Stepping Motor 2423 DC 12V Coil Resistance Ohm Each Pair of Terminal 400 796 Ambient Temp 77 F 25 C Heat Exchanger Coil Face Area m DATA SUBJECT TO CHANGE WITHOUT NOTICE 17 Indoor Unit CS MKS9NKU Control PCB CB CU MKS9NKU Control Circuit Fuse 250V Q ty Dia and Length inch mm 1 D3 5 8 L24 31 32 092 L634 Std BOSS Coil Resistance Ohm Ambient Temp 68 F 20 C Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor Micro F esa O Flap Motor Stepping Motor 2423 DC 12V Coil Resistance Ohm Each Pair of Terminal 400 796 Ambient Temp 77 F 25 C Heat Exchanger Coil Face Area m DATA SUBJECT TO CHANGE WITHOUT NOTICE 18 Indoor Unit CS MKS12NKU Control PCB CB CU MKS12NKU Control Circuit Fuse 250V Q ty Dia and Length inch mm 1 D3 5 8 L24 31 32 092 L634 FNo ofPoles S Coil Resistance Ohm Ambient Temp 68 F 20 C Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor Flap Motor
8. European Union If you wish to discard these with a chemical symbol In this case it items please contact your local authorities complies with the requirement set by the or dealer and ask for the correct method of Directive for the chemical involved disposal 10 USING THE REMOTE CONTROLLER CONTINUED How to Use the Remote When using the remote controller always point the unit s transmitter head directly Controller at the air conditioner s receiver Air Conditioner Indoor unit ES Receiver Remote Controller kj Transmitter head Z 2 Remote Controller Installation The remote controller be operated either from a non fixed position or from a Position wall mounted position To ensure that the air conditioner operates correctly do not install the remote controller in the following places e In direct sunlight Behind a curtain or other places where it is covered e More than 26 ft 8 m away from the air conditioner e Inthe path of the air conditioners airstream e Where it may become extremely hot or cold e Where it may be subject to electrical or magnetic noise e Where there is an obstacle between the remote controller and air conditioner since a check signal is sent from the remote controller every 5 minutes Mounting the Remote Before mounting the remote controller press the ON OFF operation button at the Controller mounting location to make sure that the air conditioner operates from that locat
9. Fig 17a 4 Close the cover and replace the screw Fig 17a b Affix the grille with the 2 previously removed screws Fig 16b 6 Install the air intake grille a Allow the edge of the air intake grille to slide into the top of the indoor unit and then insert it all the way inside Fig 19a Fig 18b b Press the bottom right and left corners of the air intake grille to attach it to the indoor unit Fig 19b Groove eS ES Pin Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit 3 4 2 Indoor unit types CS MKS18NKU CS MKS24NKU Basically these models can be installed and wired with out removing the grille If access to any internal part is needed follow the steps as given below How to remove the grille 1 Grasp both ends of the air intake grille and remove it by opening towards the front and pulling towards you Fig 16a 1 2 Remove the 3 screws Fig 16b 1 3 Remove the screw on the right side cover plate and open the cover Fig 17a 1 4 Take out the thermistor from the grille Fig 17b 1 b Press the 3 tabs at the top of the grille and the 3 tabs on the front face to separate the grille from the frame Fig 18a 1 6 Pull the grill toward you to remove it How to replace the grille 1 When installing the
10. KM MEAN 010909 0 0 05 A007 JD UU L Z T i uiui 7 VID DH KX UWI Ut uir OO HU UG Fig 186 1 Groove Fig 19a 1 3 5 Shape the Indoor Side Tubing 1 Arrangement of tubing by directions Fame DE a Right or left tubing zd Cut out the corner of the right left frame with a hacksaw or the like Figs 20 and 21 Left tubing outlet b Right rear or left rear tubing M In this case the corner of the frame need not be gt Cut 2 To mount the indoor unit on the rear panel Fig 20 Hang the 2 mounting slots of the unit on the upper tabs of the rear panel Fig 22 3 6 Wiring Instructions Frame General precautions on wiring 1 Before wiring confirm the rated voltage of the unit as Right tubing shown on its nameplate then carry out the wiring closely following the wiring diagram 2 Provide a power outlet to be used exclusively for each unit with a power supply disconnect and cir Fig 21 cuit breaker for overcurrent protection provided in the exclusive line 3 To prevent possible hazard due to insulation failure the unit must be grounded 4 Each wiring connection must be done tightly and in accordance with the wiring system diagram Wrong wiring may cause the unit to misoperate or become damaged b Do not allow wiring to touch the refrig
11. STEP 4 Set the FAN SPEED selector button to the setting you want STEP 5 Press the FLAP button and set the airflow direction as desired Refer to ADJUSTING THE AIRFLOW DIRECTION on page 20 To stop the air conditioner press the ON OFF operation button again 12 OPERATION WITH THE REMOTE CONTROLLER CONTINUED NOTE Choose the best position in the room for the remote controller which also acts as the sensor for room comfort and transmits the operating instructions Once you ve found this best position always keep the remote controller there e This appliance has a built in 5 minute time delay circuit to ensure reliable operation When the operation button is pressed the compressor will start running within three minutes In the event of power failure the unit will stop 2 Adjusting the Fan Speed A Automatic fan speed B Manual fan speed 3 Fan Only Simply set the FAN SPEED selector button to the 9 position This automatically sets the best fan speed for the room temperature If you want to adjust fan speed manually during operation just set the FAN SPEED selector button as desired 9 3 or STEP 3 1 MODE ap FAN SPEED NIGHT SETBACK Ha FLAP HIGH POWER STEP 2 STEP 1 If you want to circulate air without any temperature control follow these steps STEP 1 STEP 2 STEP 3 Press the MODE selector button to switch to the fan mode
12. Stepping Motor Mode 2 2423 DC 12V Coil Resistance Ohm Each Pair of Terminal 400 796 Ambient Temp 77 F 25 C Heat Exchanger Coil Face Area m DATA SUBJECT TO CHANGE WITHOUT NOTICE 19 Indoor Unit CS MKS18NKU Control PCB CB CU MKS18NKU Control Circuit Fuse 250V Q ty Dia and Length inch mm 1 D3 5 8 L33 9 32 D92 L845 8 _ Coil Resistance Ohm Ambient Temp 68 F 20 C Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor Micro F esa O Flap Motor Stepping Motor 2423 DC 12V Coil Resistance Ohm Each Pair of Terminal 400 796 Ambient Temp 77 F 25 C Heat Exchanger Coil Face Area m DATA SUBJECT TO CHANGE WITHOUT NOTICE 20 Indoor Unit CS MKS24NKU Control PCB CB CU MKS24NKU Control Circuit Fuse 250V Q ty Dia and Length inch mm 1 D3 5 8 L33 9 32 D92 L845 OSS Coil Resistance Ohm Ambient Temp 68 F 20 C Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor MicoF TO VAC __ OO Flap Motor Stepping Motor 2423 DC 12V Coil Resistance Ohm Each Pair of Terminal 400 796 Ambient Temp 77 F 25 C Heat Exchanger Coil Face Area m DATA SUBJECT TO CHANGE WITHOUT NOTICE 21 2 3 Other Component Specifications Model Quant
13. Air Outlet Conditioned air is blown out of the air conditioner through the air outlet Remote Controller The remote controller controls power ON OFF operation mode selection temperature fan speed timer setting and air sweeping Refrigerant Tubes The indoor and outdoor units are connected by copper tubes through which refrigerant gas flows Moisture in the room condenses and drains off through this hose Outdoor Condensing Unit The outdoor unit contains the compressor fan motor heat exchanger coil and other electrical components UNIT DISPLAY AND OPERATION BUTTON INDOOR UNIT IMPORTANT L OPERATION lamp 7 TIMER lamp Avoid using radio equipment QUIET lamp such as mobile phone near within 4 ft 1 2m the remote EB UP control receiver Some radio ERN equipment may cause malfunction of the unit r Tr4 OPERATION button If the trouble happens disconnect power and restart REMOTE CONTROL receiver the air conditioner after a few minutes REMOTE CONTROL receiver This section picks up infrared signals from the remote controller transmitter OPERATION button When the remote controller cannot be used pressing this button enables cooling operation Each time this button is pressed the operation mode changes cyclically Cooling operation Stop OPERATION lamp This lamp lights when the system is in the continuous DRY orange COOL green and FAN
14. Fig 3b e install the indoor unit more than 3 3 1 m away from any antenna or power lines or connecting wires used for tele vision radio telephone security system or intercom Electrical noise from any of these sources may affect operation e install in a sturdy manner to avoid increased operating noise Table 3 Max Max Allowable Total Limit of Limit of Elevation Required Amount Allowable Tubing Length Total Tubing Length Difference of Additional Model Tubing Length at Shipment L1 L2 L3 or H1 H2 H3 H4 Refrigerant Per Unit L1 L2 L3 or L1 L2 L3 L4 ft oz ft ft L1 L2 L3 L4 ft ft CU 3KS19NBU 82 150 L1 L2 L3 150 L1 L2 L3 50 CU 4KS24NBU 82 150 L1 L2 L3 L4 200 L1 L2 L3 L4 0 22 CU 4KS31NBU 100 150 L1 L2 L3 L4 230 L1 L2 L3 L4 0 22 If total tubing length becomes 150 to 200 ft Max or 150 to 230 ft Max charge additional refrigerant R410A by 0 22 oz ft No additional charge of compressor oil is necessary For more detailed charging information refer to the Technical amp Service Manual 2 2 Embedding the Tubing and Wiring Before beginning embedding installation work consult fully with agencies or offices related to the building s foundation construction electricity and water Wait to make connections to the embedded portion Each connection step is described later in this manual Securely cover the end of the embedded tubing to prev
15. Weight Net ib Shipping b kg DATA SUBJECT TO CHANGE WITHOUT NOTICE 14 Indoor Unit CS MKS24NKU lt 230V gt Voltage Rating 230V Single Phase 60Hz Performance Capacity BTU h 24 200 kW 7 10 850 739 Air Circulation Hi Me Lo ft min m h 541 919 500 850 435 739 Moisture Removal High Pintsih Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 44 41 38 30 Qt 2 Quiet mode Refrigerant Narrow tube inch mm Tube Diameter Wide tube inch mm Dimensions amp Weight Unit Dimensions Package Dimensions Height Weight Net ib Shipping b kg DATA SUBJECT TO CHANGE WITHOUT NOTICE 15 Indoor Unit CS MKS24NKU lt 208V gt Voltage Rating 208V Single Phase 60Hz Performance Capacity BTU h 24 200 kW 7 10 850 739 Air Circulation Hi Me Lo ft min m h 541 919 500 850 435 739 Moisture Removal High Pintsih Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 44 41 38 30 Qt Quiet mode Refrigerant Narrow tube inch mm Tube Diameter Wide tube inch mm Dimensions amp Weight Unit Dimensions Package Dimensions Height Weight Net ib Shipping b kg DATA SUBJECT TO CHANGE WITHOUT NOTICE 16 2 2 Major Component Specifications 2 2 1 Indoor Unit Indoor Unit CS MKS7NKU Control PCB CB CU MKS7NKU Control Circuit Fuse 250V
16. accept any interference received including interference that may cause undesired operation This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmtul interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help FCC Caution To assure continued compliance follow the attached installation instructions Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment NAMES PARTS Air Intakes INDOOR UNI
17. green mode TIMER lamp This lamp lights when the system is being controlled by the timer QUIET lamp This lamp lights during operation in the QUIET mode NOTE The unit s display lamps are dimmed during operation in the NIGHT SETBACK mode REMOTE CONTROLLER DISPLAY 088967 Displayed when the time display is set to 12 hour time 1 Operation mode MILD DRY A COOL 2 Fan speed Automatic operation SET TEMP rtt LE LI 3 Temperature setting 60 86 F When set to 80 F temperature indication F Symbols Displayed when transmitting data Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is shown Displayed when setting timer 4 Timer 24 hour clock with ON OFF program Timer ON Timer OFF Timer OFF 1 hour OFF Timer 5 NIGHT SETBACK 6 Confirmation of transmission 7 Auto fla dication Flap angle indication Sweep indication 8 High power operation 9 Quiet operation REMOTE CONTROLLER Transmitter Display QUIET button FAN SPEED selector button FLAP button ON TIME Advance button setting buttons Return button CANCEL button SENSOR button LE LI c ONO OFS AM THEM TATA 0001 0001
18. 2 Quiet mode Refrigerant Narrow tube inch mm Tube Diameter Wide tube inch Dimensions amp Weight Indoor Unit Unit Dimensions 11 7 32 285 Package Dimensions Height Weight Net Shipping Ib Shipping Volume cu ft m DATA SUBJECT TO CHANGE WITHOUT NOTICE 12 Indoor Unit CS MKS18NKU lt 230V gt Voltage Rating 230V Single Phase 60Hz Performance Capacity BTU h 17 500 kW 5 19 760 641 Air Circulation Hi Me Lo ft min m3 h 500 850 447 760 377 641 Moisture Removal High Pintsih Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 41 38 34 28 Qt 2 Quiet mode Refrigerant Narrow tube inch mm Tube Diameter Wide tube inch Dimensions amp Weight Unit Dimensions Package Dimensions Height Weight Net ib Shipping b kg DATA SUBJECT TO CHANGE WITHOUT NOTICE 13 Indoor Unit CS MKS18NKU lt 208V gt Voltage Rating 208V Single Phase 60Hz Performance Capacity BTU h 17 500 kW 5 19 760 641 Air Circulation Hi Me Lo ft min m3 h 500 850 447 760 377 641 Moisture Removal High Pintsih Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 41 38 34 28 Qt 2 Quiet mode Refrigerant Narrow tube inch mm Tube Diameter Wide tube inch Dimensions amp Weight Unit Dimensions Package Dimensions Height
19. 3 6 Wiring Instructions for details CAUTION Check local electrical codes and regulations before obtaining wire Also check any specified instructions or Narrow Tube Model Outer Dia Thickness Outer Dia Thickness Wide Tube limitations CS MKS7NKU 1 4 6 35 mm CS MKS9NKU 1 4 6 35 mm 0 0314 0 8 mm 3 8 9 52 mm 0 0314 0 8 mm CS MKS18NKU 1 4 6 35 mm 0 0314 0 8 mm 1 2 12 70 mm 0 0314 0 8 mm CS MKS24NKU 1 4 6 35 mm 0 0314 0 8 mm 6 35 mm 0 0314 0 8 mm CS MKS12NKU 1 4 6 35 mm 0 0314 0 8 mm 3 8 9 52 mm 0 0314 0 8 mm 5 8 15 88 mm 0 0393 1 0 mm 1 5 Additional Materials Required for Installation 1 Refrigeration armored tape 2 Insulated staples or clamps for connecting wire See local codes 3 Putty 4 Refrigeration lubricant 5 Clamps or saddles to secure refrigerant tubing 2 Installation Site Selection 2 1 Indoor Unit Indoor unit To prevent abnormal heat generation and the possibility of fire do not place obstacles enclosures and grilles in front of or surrounding the air conditioner in a way that may Drain hose Outside drainage block air flow AVOID direct sunlight nearby heat sources that may affect performance of the unit areas where leakage of flammable gas may be expected placing or allowing any obstructions ne
20. Pressing the MODE selector button cancels HIGH POWER mode Depending on the operating conditions the fan speed may be increased by a small amount only MODE FAN SPEED NIGHT SETBACK C 2 FLAP HIGH POWER DRY Operation How it works Cooling Operation Power failure during operation Clicking Sound Clicking sound is heard from the air conditioner Remote Controller 16 SPECIAL REMARKS Once the room temperature reaches the level that was set the unit s operation frequency is changed automatically During DRY operation the fan speed automatically runs at lower speed for providing a comfortable breeze DRY operation is not possible if the indoor temperature is 59 F or less Sometimes the indoor unit may not get to the set fan speed such as LOW and QUIET under cool operation at very low outdoor temperatures due to the Indoor unit being protected from ice or frost when combined with the outdoor unit for Low Ambient Cooling models In the event of power failure the unit will stop When the power is resumed the unit will restart automatically within 15 minutes by the remote controller In cooling operation any plastic parts may shrink due to a sudden temperature change In this event a clicking sound may occur This is normal and the sound will soon disappear The remote controller sends the setting condition to the air conditioner regularly at five mi
21. ROM socket insertion problem or the ROM has not been installed 2 The failure mode is stored in memory even when the power is not ON Follow the procedure below to perform diagnostics PROCEDURE After turning on power to the air conditioner use the remote controller and follow the steps below to execute self diagnostics Step 1 Press and hold the remote controller QUIET button and 1 HR TIMER button At the same time press the ACL reset button Use a pointed object such as the tip of a pen to press the ACL button When this has been done oP 1 test run appears blinking in the remote controller clock display area Step 2 Next press the 1 HR TIMER button once to change the display from oP 1 to oP 3 self diagnostics The display continues to blink Step 3 Finally press the ON OFF button to engage self diagnostics mode The self diagnostics function utilizes the 3 indicator lamps on the main unit in combinations of ON lamps blinking lamps and OFF lamps to report the existence of sensor trouble or a protective operation The lamps blink or remain ON for 5 seconds then turn OFF for 2 seconds Self diagnostics is completed when the buzzer sounds 3 short beeps e A maximum of 3 self diagnostics reports are displayed for 5 seconds each beginning with the most recent report Following this display the lamps turn OFF In order to view the self diagnostics results again press the ON OFF button again The 3 la
22. Removal High Pintsih Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 34 31 28 23 Qt Quiet mode Refrigerant Narrow tube inch mm Tube Diameter Wide tube inch Dimensions amp Weight Indoor Unit Unit Dimensions 11 7 32 285 Package Dimensions Height Weight Net Shipping Ib Shipping Volume cu ft m DATA SUBJECT TO CHANGE WITHOUT NOTICE 10 Indoor Unit CS MKS12NKU lt 230V gt Voltage Rating 230V Single Phase 60Hz Performance Capacity BTU h 11 900 kW 3 50 440 970 Air Circulation Hi Me Lo ft min m h 282 479 259 440 218 370 Moisture Removal High Pintsih Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 36 33 29 25 Qt 2 Quiet mode Refrigerant Narrow tube inch mm Tube Diameter Wide tube inch Dimensions amp Weight Indoor Unit Unit Dimensions 11 7 32 285 Package Dimensions Height Weight Net Shipping Ib Shipping Volume cu ft m DATA SUBJECT TO CHANGE WITHOUT NOTICE 11 Indoor Unit CS MKS12NKU lt 208V gt Voltage Rating 208V Single Phase 60Hz Performance Capacity BTU h 11 900 kW 3 50 440 370 Air Circulation Hi Me Lo ft min m h 282 479 259 440 218 370 Moisture Removal High Pintsih Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 36 33 29 25 Qt
23. SPEED selector button NIGHT SETBACK button FLAP button HIGH POWER button ON TIME OFF TIME setting buttons SENSOR button NOTE Press the button to increase the set temperature Press the button to reduce the set temperature The temperature setting changes by 1 C or 2 F each time one of the TEMP buttons is pressed Use this button to select DRY COOL or FAN mode A The air conditioner reduces the humidity in the room s The air conditioner makes the room cooler 96 The air conditioner works only as a circulation fan The air conditioner automatically decides the fan speeds eey High fan speed e Medium fan speed ee Low fan speed For details see 4 Night Setback Mode When you press this button in the DRY or COOL mode the mark appears in the display and the remote controller will automatically adjust the set temperature to save energy Press this button either to select the setting of the airflow direction to the auto flap in each mode or one of the six possible positions manually or to select the sweep function which moves the flap up and down automatically Auto flap setting If selected a cooling or dry operation the flap is set at position 7 in the following chart The airflow direction can be set manually six positions 7 The flap moves and down automatically When you press the FLAP button the air flow direction will be changed one by one
24. TROUBLE 1 4 WAY VALVE FAILURE HEAT PUMP MODEL ONLY ZERO CROSS TROUBLE 2 O D PCB FAILURE E GAS LOSS PREVENTION 1 SERVICE VALVE NOT OPENED 2 INSUFFICIENT GAS DC COMPRESSOR DRIVE E10 CIRCUIT TROUBLE 1 OPEN PHASE 2 O D PCB FAILURE FAN MOTOR FAILURE 2 CONNECTOR CONTACT FAILURE E11 O D DC FAN OPERATION TROUBLE i 3 O D PCB FAILURE 5 O D SYSTEM FAILURE E12 OLROPERATION O D POWER 1 MIS WIRING 2 BLOWN FUSE 3 POWER RELAY FAILURE 4 O D PCB FAILURE 5 COMPRESSOR FAILURE 1 D FAN SYSTEM FAILURE 2 INSUFFICIENT GAS E193 FREEZING PREVENTION OPERATION 3 OPERATION AT LOW TEMPERATURE OPEN PHASE O D FREEZING eee e meme x afe x x x xl lt a gt s gt lt s gt 8FA2 5251 11100 2 36 2 If the self diagnostics function fails to operate Check the indoor unit Is the fuse blown Normal No indicators illuminate and the indoor fan does not rotate Check the power voltage Blown Replace the circuit board or the fuse Replace the controller 37 8 3 Checking the Indoor and Outdoor Units 1 Checking the indoor unit DEMNM m Check tems unit operation Use the remote controller to operate the e he rated voltage must be present between inter unit wirings 1 and 2 unit in TEST run mode To determine e Connect a 5 k ohm resistor between inter unit wirings 2 and 3 When the whether the mode is cu
25. Z 2 Remote Controller Installation The remote controller be operated either from a non fixed position or from a Position wall mounted position To ensure that the air conditioner operates correctly do not install the remote controller in the following places e In direct sunlight Behind a curtain or other places where it is covered e More than 26 ft 8 m away from the air conditioner e Inthe path of the air conditioners airstream e Where it may become extremely hot or cold e Where it may be subject to electrical or magnetic noise e Where there is an obstacle between the remote controller and air conditioner since a check signal is sent from the remote controller every 5 minutes Mounting the Remote Before mounting the remote controller press the ON OFF operation button at the Controller mounting location to make sure that the air conditioner operates from that location The indoor unit should make a beeping sound to indicate that it has received the signal Remote Control Holder Mounting Screws 9 32 x 5 8 4 x 16 mm included Set in 1 place To prevent loss of the remote controller you can connect the remote controller to the holder by passing a string through the remote controller and attachment hole To take out the remote controller pull it forward When Holding the Remote When using the remote controller and during air conditioner operation the Controller transmitter on the re
26. air outlet at least 1 5 m away from CAUTION the unit When Connecting Refrigerant Tubing When performing piping work do not mix air except for speci fied refrigerant R410A in refrigeration cycle It causes capacity down and risk of explosion and injury due to high tension inside the refrige rant cycle Refrigerant gas leakage may cause fire Do not add or replace refrigerant other than specified type It may cause product damage burst and injury etc Ventilate the room well in the event that refrigerant gas leaks during the installation Be careful not to allow contact of the refrigerant gas with a flame as this will cause the generation of poisonous gas Do not add any refrigerant air or substance into the refrigeration circuit other than the designated refrigerant R410A Adding anything other than the specified refrig erant may cause the pressure to rise excessively in the refrigeration circuit rupturing the circuit and causing injury or damage Use all new tubing and flare nuts to make the tubing con nections Using any previous parts from R22 based sys tems may result in damage to the equipment and may lead to the refrigeration circuit rupturing causing a seri ous accident Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them then tighten the nut with a torque wrench for a leak free connection Check carefully for leaks before
27. as follows 2 3 4 5 6 7 8 ANC See exo Mong ee SWEEP If this button is pressed during DRY COOL or FAN operation the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High No display The timer does not operate The air conditioner starts at the set time The air conditioner stops at the set time The air conditioner stops and starts or starts and stops at the set times every day For details see SETTING THE TIMER When you press this button use a small tipped object such as a ballpoint pen the mark will appear at the display And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly If the remote controller is located near a heat source such as a space heater or in direct sunlight press the SENSOR button to switch to the sensor on the indoor unit NOTE The indoor fan runs continuously when the system is in normal operation It does not turn off when the desired room temperature is reached If Night Set Back mode is selected the fan will turn off intermittently during cooling operation in order to control air flow REMOTE CONTROLLER CONTINUED Temperature Display Selector This switches the temperature display between C and F button Time Display Selector button This switches the time
28. button If the trouble happens disconnect power and restart REMOTE CONTROL receiver the air conditioner after a few minutes REMOTE CONTROL receiver This section picks up infrared signals from the remote controller transmitter OPERATION button When the remote controller cannot be used pressing this button enables cooling operation Each time this button is pressed the operation mode changes cyclically Cooling operation Stop OPERATION lamp This lamp lights when the system is in the continuous DRY orange COOL green and FAN green mode TIMER lamp This lamp lights when the system is being controlled by the timer QUIET lamp This lamp lights during operation in the QUIET mode NOTE The unit s display lamps are dimmed during operation in the NIGHT SETBACK mode REMOTE CONTROLLER DISPLAY 088967 Displayed when the time display is set to 12 hour time 1 Operation mode MILD DRY A COOL 2 Fan speed Automatic operation SET TEMP rtt LE LI 3 Temperature setting 60 86 F When set to 80 F temperature indication F Symbols Displayed when transmitting data Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is shown Displayed when setting timer 4 Timer 24 hour clock with ON OFF program Timer ON Timer
29. display between 24 hour time and 12 hour time ACL button ALL CLEAR Puts the remote controller into pre operation status Always press this button after replacing the batteries ADDRESS switch The address switch changes to prevent mixing of signals from remote controller s when two air conditioners are installed next to each other Normally the address switch is set to A For more information please contact the dealer where you made the purchase Normally the tabs on the remote controller should not be bent The remote controller sends the temperature signal to the air conditioner regularly at five minute intervals If the signal from the remote controller stops for more than 15 minutes due to the loss of the remote controller or other trouble the air conditioner will switch to the temperature sensor which is built into the indoor unit and control the room temperature In these cases the temperature around the remote controller may differ from the temperature detected at the air conditioner s position USING THE REMOTE CONTROLLER How to Install Batteries TIMER c 1 Slide the cover in the direction indicated by the arrow es and remove it C CANCEL SENSOR 12 4 24 ADR Oaa Install two AAA alkaline batteries Make sure the batteries point in the direction marked in the battery compartment Use a thin object such as the tip of a pen to press the ACL button ACL button T
30. grille place the bottom of the grille into the frame first Fig 18b 1 Then insert the tabs on the top of the grille and on the front face into the frame 2 Make sure that the grille and frame are firmly fitted together by engaging the tabs 3 Attach the thermistor on the grille Fig 17a 1 4 Close the cover and replace the screw Fig 17a 1 5 Affix the grille with the 3 previously removed screws Fig 16b 1 6 Install the air intake grille a Allow the edge of the air intake grille to slide into the top of the indoor unit and then insert it all the way inside Fig 19a 1 b Press the bottom right and left corners and center of the air intake grille to attach it to the indoor unit Fig 19b 1 Attach so that the round pins at the top right and left cor ners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit Fig 19b 1 10 Air intake grille Grille SSS Fig 16a 1 i EN lt Cover Thermistor NTU ANNAN 17777 AQ 0005070799 E TT DOT TY OX
31. is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help FCC Caution To assure continued compliance follow the attached installation instructions Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment NAMES PARTS Air Intakes INDOOR UNIT Air Outlet y Remote Controller V Drain Hose e c Refrigerant Tubes OUTDOOR UNIT Air Outlet Es NOTE This illustration is based on the external view of a standard model Consequently the shape may differ from that of the air conditioner which you have selected This air conditioner consists of an indoor unit and an outdoor unit You can control the air conditioner with the remote controller Air from the room is drawn into this section and passes through air filters which remove dust
32. not displayed Display QUIET button When you press this button the fan rotates slower than the fan speed setting to provide a quieter operating sound ON OFF operation button This button is for turning the air conditioner on and off 1 HR TIMER button 9 When you press this button regardless of whether the unit is operating or 1 HOUR OFF TIMER stopping the unit operates for one hour and then shuts down REMOTE CONTROLLER CONTINUED Temperature setting buttons TEMP MODE selector button DRY COOL FAN FAN SPEED selector button NIGHT SETBACK button FLAP button HIGH POWER button ON TIME OFF TIME setting buttons SENSOR button NOTE Press the button to increase the set temperature Press the button to reduce the set temperature The temperature setting changes by 1 C or 2 F each time one of the TEMP buttons is pressed Use this button to select DRY COOL or FAN mode A The air conditioner reduces the humidity in the room s The air conditioner makes the room cooler 96 The air conditioner works only as a circulation fan The air conditioner automatically decides the fan speeds eey High fan speed e Medium fan speed ee Low fan speed For details see 4 Night Setback Mode When you press this button in the DRY or COOL mode the mark appears in the display and the remote controller will automatically adjust the set temperature
33. office is the same as the voltage shown on the nameplate Do not install this air conditioner where there are fumes or flammable gases or in an extremely humid space such as a greenhouse Do not install the air conditioner where excessively high heat generating objects are placed Avoid To protect the air conditioner from heavy corrosion avoid installing the outdoor unit where salty sea water can splash directly onto it or in sulphurous air near a spa ELECTRICAL REQUIREMENTS 1 All wiring must conform to the local electrical codes Consult your dealer or a qualified electrician for details 2 Each unit must be properly grounded with a ground or earth wire or through the supply wiring 3 Wiring must be done by a qualified electrician NOTE Pull off the power plug from a receptacle or switch off the breaker or switch off the power disconnecting mean to isolate the air conditioner from the main power supply when not in use for a long time SAFETY INSTRUCTIONS e Read this Instruction Manual carefully before using this air conditioner If you still have any difficulties or problems consult your dealer for help This air conditioner is designed to give you comfortable room conditions Use this only for its intended purpose as described in this Instruction Manual Confirm to authorized dealer or specialist on usage of specified ANETO refrigerant type Using of refrigerant other than the specified type may cause produ
34. operation speeds and PAM control at high operation speeds making the most effective use of power This function acts to raise the power but keeps the AC system in the same operating mode This function is set with the HIGH POWER button on the remote controller It can be set regardless of the temperature and fan speed settings e HIGH POWER operation from remote controller The unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High Frequency x x Time 30 min 5 min V Start End MAX NOTE When HIGH POWER operation ends the unit operates at low Hz for 5 minutes regardless of the thermostat OFF conditions When in DRY mode operation is in the cooling zone ll Lamp colors OPERATION lamp DRY operation COOL operation TIMER lamp QUIET lamp ION lamp Timer backup Operation stops if there are no operator controls for 25 hours or longer after unit operation switched from OFF to ON by use of ON timer operation 33 NIGHT SETBACK When NIGHT SETBACK operation is set the temperature and fan speed settings will be adjusted automatically to allow comfortable sleep When NIGHT SETBACK operation is set mark appears on the remote controller The main unit display lamp also becomes dimmer e COOL and DRY modes When the night setback mode is selected the air conditioner automatically raises the temperature
35. service personnel or the appliance WARNING This symbol refers to a hazard or AN unsafe practice which can result in severe personal injury or death This symbol refers to a hazard or AN unsafe practice which can result in personal injury or product or property damage INSTALLATION LOCATION We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit Before installation check that the voltage of the electric supply in your home or office is the same as the voltage shown on the nameplate Do not install this air conditioner where there are fumes or flammable gases or in an extremely humid space such as a greenhouse Do not install the air conditioner where excessively high heat generating objects are placed Avoid To protect the air conditioner from heavy corrosion avoid installing the outdoor unit where salty sea water can splash directly onto it or in sulphurous air near a spa ELECTRICAL REQUIREMENTS 1 All wiring must conform to the local electrical codes Consult your dealer or a qualified electrician for details 2 Each unit must be properly grounded with a ground or earth wire or through the supply wiring 3 Wiring must be done by a qualified electrician NOTE Pull off the power plug from a receptacle or switch off the breaker or switch off the power disconnecting mean to isolate the air c
36. setting 2 1 when 30 minutes have passed after the selection was made and then another 2 F 1 C after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle cooling is needed 2 1 Setting temperature 20 Press the NIGHT SETBACK button 30 min 30 min Time 7 2 Protective Functions ll Freeze prevention During COOL or DRY operation freezing is detected and operation is stopped when the temperature of the indoor heat exchanger matches the conditions below 1 Freeze prevention operation is engaged when the temperature of the indoor heat exchanger is below 43 F 6 C 2 Restart after freeze prevention operation occurs when the temperature of the indoor heat exchanger reaches 46 F 8 C Indoor heat exchanger temperature Area Automatic capacity control When the temperature drops below Point A the operation frequency is reduced by a certain proportion Area Frequency increase is prohibited When the temperature reaches Point C or above freezing prevention is ended and control is the same as in the a area When the temperature drops to below 36 F 2 C continuously for 2 minutes or longer the compressor stops Once the freeze condition is detected the air conditioner will work less than the maximum fre
37. starting the test run Do not leak refrigerant while piping work for an installation or re installation and while repairing refrigeration parts Handle liquid refrigerant carefully as it may cause frost bite When Servicing Turn the power OFF at the main power box mains before opening the unit to check or repair electrical parts and wiring Keep your fingers and clothing away from any moving parts The illustrations are based on the typical appearance of a standard model Consequently the shape may differ from that of the air conditioner that you are installing Clean up the site after you finish remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced Others CAUTION Ventilate any enclosed areas when installing or testing the refrigeration system Escaped refrigerant gas on contact with fire or heat can produce dangerously toxic gas Confirm upon completing installation that no refrigerant gas is leaking If escaped gas comes in contact with a stove gas water heater electric room heater or other heat source it can produce dangerously toxic gas 1 This booklet briefly outlines where and how to install the air conditioning system Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning 1 1 Tools Required for Installation not
38. the drain hose to remove it Fig 39 c Apply moderate force to pull off the drain cap on the left side If you cannot pull it off by hand use a long nose pliers d Reattach the drain hose to the left side and the drain cap to the right side Fig 40a Drain hose Slide the drain hose fully onto the drain pan outlet until the drain hose edge is pushed into the insula tion Check that the screw holes in the drain bracket and the drain pan outlet are aligned and securely in contact then fasten them with the screw After attaching the drain hose check that it is attached securely Fig 40c Drain cap Use a Phillips screwdriver to push the drain cap in firmly If it is difficult to push in wet the cap with water first Install the indoor unit on the rear panel Connect the tubing and wiring led inside from out doors After completing a leak test bundle the tubing together with armoring tape and store it inside the tubing storage area at the back of the indoor unit and hold it with clamps Figs 40a and 41 15 y Rear panel Hole in wall K A Ce Bent part Wide tube Drain hose Fig 40a Screw hole Insulation Drain bracket Drain bracket Drain hose Screw Fig 40c 9 Conduit P D Fig 41 LL Narrow tube Drain hose Drain hose Fig 40b Refrigerant tubing Inter unit wiring To unmount indoor
39. to save energy Press this button either to select the setting of the airflow direction to the auto flap in each mode or one of the six possible positions manually or to select the sweep function which moves the flap up and down automatically Auto flap setting If selected a cooling or dry operation the flap is set at position 7 in the following chart The airflow direction can be set manually six positions 7 The flap moves and down automatically When you press the FLAP button the air flow direction will be changed one by one as follows 2 3 4 5 6 7 8 ANC See exo Mong ee SWEEP If this button is pressed during DRY COOL or FAN operation the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High No display The timer does not operate The air conditioner starts at the set time The air conditioner stops at the set time The air conditioner stops and starts or starts and stops at the set times every day For details see SETTING THE TIMER When you press this button use a small tipped object such as a ballpoint pen the mark will appear at the display And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly If the remote controller is located near a heat source such as a space h
40. to the application of high frequency noise to the signal wires resulting in abnormal signal pulses and malfunction 1 Locations near broadcast stations where Either of the following trouble may occur The fundamental concept is to there are strong electromagnetic waves 1 The unit may stop suddenly during make the system less susceptible to noise 2 Locations near amateur radio short wave operation Insulate for noise or stations 2 Indicator lamps may flicker distance from the noise source 3 Locations near electronic sewing machines 1 Use shielded wires and arc welding machines 2 Move unit away from the noise source 2 Electromagnetic interference This refers to noise generated by high speed switching of the microcomputer and compressor This noise radiates through space and returns to the electric wiring affecting any wireless devices televisions radios etc located nearby 1 A television or radio is located near the 1 Noise appears in the television picture 1 Select a separate power source A C and A C wiring or the picture is distorted Keep the and A C wiring at least 1 meter 2 The antenna cable for a television or 2 Static occurs in the radio sound away from wireless devices and antenna cables radio is located close to the A C and A C Change the wireless device s antenna to a high wiring sensitivity antenna 3 Locations where television and radio Change the antenna cable to a BS
41. unit Press the 2 A marks the lower part of the indoor unit and unlatch the tabs Then lift the indoor unit and unmount Fig 42 3 9 Drain Hose a The drain hose should be slanted downward to the outdoors Fig 43 b Never form a trap in the course of the hose c Ifthe drain hose will run in the room insulate the hose with insulation so that chilled condensation will not damage furniture or floors Fig 44 Foamed polyethylene or its equivalent is recom mended NES Do not supply power to the unit or operate it until all tubing and wiring to the out side unit are completed Risk of Electric Shock 16 T Push Fig 42 Indoor unit hose Fig 43 5 Condensation Insulation material Locally purchased must be used Fig 44 4 How to Test Run the Air Conditioner After turning on the power of the air conditioner use the remote controller and follow the steps below to conduct the test run 1 Set the remote controller in Test Run mode Fig 59a a Press and hold the QUIET button and the 1HR TIMER button b Then press and hold the ACL Reset button with a pointed object such as the tip of a pen After 5 sec QUIET onds release the ACL button first button c Then release the QUIET and 1HR TIMER buttons d appears and oP 1 blinking in the remote con troller clock display area Fig 59b 2 Start Cooling mode test run by pres
42. will stop operating one hour later 2 Operation together with the The 1 Hour OFF Timer setting is given priority over the DAILY ON OFF REPEAT DAILY ON OFF REPEAT Timer setting TIPS FOR ENERGY SAVING Avoid not block neither the air intake nor the air outlet It may cause less performance and may leads to malfunctions Do not let direct sunlight into the room Use sunshades blinds or curtains If the walls and ceiling of the room are warmed by the sun it will take longer to cool the room Do Always try to keep the air filter clean Refer to CARE AND CLEANING A clogged filter will impair the performance of the unit e To prevent conditioned air from escaping keep windows doors and any other openings closed ADJUSTING THE AIRFLOW DIRECTION 1 Horizontal The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right When the humidity is high the vertical vanes should be in the front position during the cooling or dehumidifying operation If the vertical vanes are positioned all of the way to the right or left condensation may begin to form around the air vent and drip down 2 Vertical The vertical airflow can be adjusted by moving the flap with the remote controller Do not move the flap with your hands Confirm that the remote controller has been turned on Use the FLAP button to set either the sweep function or one of the six airflow directi
43. 0 F 26 7 C Fan speed High Horizontal distance ft 5 10 15 20 Flap angle 0 Flap angle 30 28 Axis air velocity 0 Axis air velocity 30 Indoor Unit Axis air velocity ft sec Vertical distance ft CS MKS18NKU Room air temp 80 F 26 7 C Fan speed High Horizontal distance ft 5 10 15 20 Flap angle 0 Flap angle 30 29 Axis air velocity 0 Axis air velocity 30 Indoor Unit Axis air velocity ft sec Vertical distance ft CS MKS24NKU Room air temp Fan speed 80 F 26 7 C High Horizontal distance ft 10 15 20 Flap angle 0 Flap angle 30 30 Axis air velocity 0 Axis air velocity 30 6 ELECTRICAL DATA 6 1 Electric Wiring Diagrams Indoor Unit CS MKS7NKU CS MKS9NKU CS MKS12NKU CS MKS18NKU CS MKS24NKU TERMINAL BASE EVAPORATOR D GRN YEL O CONNECTOR 11 N N LAMP 10P WHT FLAP MOTOR gt 3 3 lt s 5 5 lt C lt FAN MOTOR 8FA2 5251 11000 2 31 7 FUNCTIONS 7 1 Operation Functions Emergency operation Emergency operation is available when the remote controller malfunctions has been lost or otherwise cannot be used To operate the system press the OPERATION button which is also used as the receiver below the un
44. 96 Press the ON OFF operation button Press the FAN SPEED selector button to select the fan speed of your choice 9 9 or OPERATION WITH THE REMOTE CONTROLLER CONTINUED 4 Night Setback Mode 14 Night Setback Mode is used for saving energy Press the NIGHT SETBACK button while unit is operating The mark appears in the display To release the night setback function press the NIGHT SETBACK button again Pressing the MODE selector button cancels Night Setback mode FLAP HIGH POWER In Cooling and DRY When the niah 7 m Mode and en the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F when 30 minutes have passed after the selection was made and then another 2 F after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle cooling is needed Setting temperature Es Press the NIGHT SETBACK button OPERATION WITH THE REMOTE CONTROLLER CONTINUED 5 QUIET Mode QUIET Mode is used to reduce the fan sound of the indoor unit Press the QUIET button The mark appears in the display To cancel press QUIET button again ON OFF O QUIET e n QUIET Mode the fan rotates at a slower speed than the fan speed setting e Ifthe unit is already operating with a very l
45. ECIFICATIONS Model No Indoor Unit CS MKS7NKU CS MKS9NKU CS MKS12NKU Power Source Single phase 208 230 V 60 Hz Cooling Capacity kw 220 26 350 k BTU h 7 500 9 000 11 900 kw 0 2 ef Heating Capacity e BTUh 1 ef Z Operation Cooling Operation H M L dB A 33 30 27 34 31 28 36 33 29 Sound jHeatingOperaion HML dB A Unit Dimensions HxWxD 11 7 32x32 15 32x7 7 16 11 7 32 32 15 32 7 7 16 11 7 32 32 15 32 7 7 16 mm 285x825x189 285x825x189 kg W W Indoor unit Include panel inch 285x825x189 CU 4KS24NBU CU 4KS31NBU Power Source Heating Capacity F WF BTU 0 d 0 7 dB A Operation Cooling Operation H dB A 50 1 53 Sound Heating Operation BA 7 y 29 1 8 35 7 16 12 19 32 29 1 8 35 7 16 12 19 32 35 1 32 35 7 16 12 19 32 740 900 320 740 900 320 890 900 320 Net Weight Ibs kg 138 9 63 0 138 9 63 0 174 2 79 0 25 APPENDIX B Operating Instructions CS MKS18NKU CS MKS24NKU 852 6 4181 215 00 1 A 2 Panasonic Operating Instructions Split System Air Conditioner Model No Indoor Units Outdoor Units CS MKS18NKU CU 3KS19NBU CS MKS24NKU CU 4KS24NBU CU 4KS31NBU This air conditioner uses the refrigerant R410A Before operating the unit read these operating instructions thoroughly and keep them for future reference P
46. IT IN SENSOR 2 POOR CONTACT AT CONNECTOR OR OPEN CIRCUIT AT S05 SERES Cen TERMINAL PRESS FIT LOCATION 3 O D PCB FAILURE O D OUTDOOR 506 O DAIR TEMP SENSOR TROUBLE 507 O D CURRENT SENSOR ERROR O D PCB FAILURE MIS WIRING 2 AC POWER FAILURE 3 BLOWN FUSE POWER RELAY FAILURE 5 IID OR O D PCB FAILURE O D FAN MOTOR FAILURE 7 REACTOR FAILURE HIGH PRESSURE SW FAILURE 9 OLR FAILURE 10 MAGNETIC COIL FAILURE HIC OR TR FAILURE 2 O D FAN NOT OPERATING E01 I D O D COMMUNICATION TROUBLE SERIAL COMMUNICATION TROUBLE Eoo HIC CIRCUIT TROUBLE INSTANTANEOUS POWER STOPPAGE 4 SERVICE VALVE NOT OPENED POWER TR CIRCUIT TROUBLE O D FAN BLOCKED 6 CONTINUOUS OVERLOAD OPERATION COMPRESSOR FAILURE 8 O D PCB FAILURE E03 O D UNIT EXTERNAL ROM TROUBLE 1 EXTERNAL ROM DATA FAILURE 2 O D PCB FAILURE 1 INSTANTANEOUS POWER STOPPAGE 2 HIC OR POWER TR FAILURE CURRENT PEAK CUT 3 O D PCB FAILURE N O D PCB FAILURE PAM CIRCUIT TROUBLE LIT ACTIVE CIRCUIT TROUBLE LIT O D POWER VOLTAGE TROUBLE 1 ELECTRIC EXPANSION VALVE FAILURE 2 CHOKED CAPILLARY TUBE ry EN E 3 INSUFFICIENT GAS 4 CONTINUOUS LOAD OPERATION 5 O D FAN NOT creme 6 O D PCB FAILURE wass YUYU Web FAN YUYU Web FAILURE 2 CONNECTOR CONTACT FAILURE IID PCB FAILURE 4 WAY VALVE SWITCHING
47. IW SO 88 81 8 8 2p 1MN8LSMIN SO 0261 1 1 eqni c cL 6 96 862 ZE E LL c c L ce ec Z SGOL Z L LYF Unit inch mm 852 0 0010 216 00 0 24 4 REFRIGERANT FLOW DIAGRAM 4 1 Refrigerant Flow Diagram Indoor Unit CS MKS7NKU CS MKS9NKU CS MKS12NKU indoorunit Indoor heat exchanger O D 1 4 6 35 mm Cooling cycle Indoor Unit CS MKS18NKU Indoor unit O D 1 2 12 7 mm Indoor heat exchanger O D 1 4 6 35 mm lt Cooling cycle Indoor Unit CS MKS24NKU Indoor unit Indoor heat exchanger lt TP Cooling cycle 25 5 PERFORMANCE DATA 5 1 Air Throw Distance Charts Indoor Unit CS MKS7NKU Room air temp 80 F 26 7 C 2 Fan speed High Horizontal distance ft Axis air velocity ft sec Vertical distance ft Flap angle 0 Flap angle 30 26 Axis air velocity 0 Axis air velocity 30 Indoor Unit Axis air velocity ft sec Vertical distance ft CS MKS9NKU Room air temp 80 F 26 7 C Fan speed High Horizontal distance ft 5 10 15 20 Flap angle 0 Flap angle 30 27 Axis air velocity 0 Axis air velocity 30 Indoor Unit Axis air velocity ft sec Vertical distance ft CS MKS12NKU Room air temp 8
48. T Air Outlet y Remote Controller V Drain Hose e c Refrigerant Tubes OUTDOOR UNIT Air Outlet Es NOTE This illustration is based on the external view of a standard model Consequently the shape may differ from that of the air conditioner which you have selected This air conditioner consists of an indoor unit and an outdoor unit You can control the air conditioner with the remote controller Air from the room is drawn into this section and passes through air filters which remove dust Air Outlet Conditioned air is blown out of the air conditioner through the air outlet Remote Controller The remote controller controls power ON OFF operation mode selection temperature fan speed timer setting and air sweeping Refrigerant Tubes The indoor and outdoor units are connected by copper tubes through which refrigerant gas flows Moisture in the room condenses and drains off through this hose Outdoor Condensing Unit The outdoor unit contains the compressor fan motor heat exchanger coil and other electrical components UNIT DISPLAY AND OPERATION BUTTON INDOOR UNIT IMPORTANT L OPERATION lamp 7 TIMER lamp Avoid using radio equipment QUIET lamp such as mobile phone near within 4 ft 1 2m the remote EB UP control receiver Some radio ERN equipment may cause malfunction of the unit r Tr4 OPERATION
49. TECHNICAL amp SERVICE MANUAL Panasonic INDOOR UNIT CS MKS7NKU CS MKS9NKU CS MKS12NKU CS MKS18NKU CS MKS24NKU DC INVERTER MULTI SYSTEM AIR CONDITIONER Capacity Indoor Model No Product Code No 7 500BTU h CS MKS7NKU 1 852 360 94 Wall Mounted Type Indoor Unit Applicable Multi Outdoor Units gt CU 3KS19NBU 3 room multi unit CU 4KS24NBU 4 room multi unit CU 4KS31NBU 4 room multi unit CS MKS7NKU CS MKS9NKU CS MKS12NKU IMPORTANT These air conditioners employ new refrigerant R410A Pay special attention when servicing the unit n410A CS MKS18NKU CS MKS24NKU REFERENCE SM700873 N SAFETY PRECAUTIONS Before doing repair work please read the A SAFETY PRECAUTIONS carefully and fully understand them The precautionary items here are divided into N Warning and AN Caution items Items in particular which may cause death or serious injury to the service personnel if the work is not performed correctly are included in the Warning table However even precautionary items identified as Caution also have the potential for serious consequences if not performed correctly Important safety precautions are described for all items in both categories Be sure to carefully follow all of them Symbol Indication AN This symbol indicates items to which we need to pay attention In this triangle a definite precautionary item is described Q This symbol indicates the item
50. agnosis procedure Quiet Timer Operation gt Off 3 2 1 iK Blinking Di Iluminate 3 1 Condition E01 For terminal board short circuit work or inter unit wiring removal turn off the power to WARNING avoid an electric shock Remove the terminal board short circuit after the completion of self diagnosis Operate the air conditioner in the TEST RUN mode Does the voltage 1 Short circuit between the terminals 2 and 3 between the terminals 1 and 2 on the indoor unit terminal board on the indoor unit terminal board 2 Operate the system in TEST RUN mode Then reach the rated value five minutes later perform the self diagnosis Condition E12 An error in the P C Board in the indoor unit might be considered Does the voltage 1 Disconnect the inter unit wiring on the outdoor between the wires 1 and 2 of unit side inter unit wiring on the indoor unit side 2 Short circuit between the terminals 2 and 3 reach the rated value on the outdoor unit terminal board 3 Operate the system in TEST RUN mode Then five minutes later perform the self diagnosis 1 Disconnect the inter unit wiring on the indoor What is the self diagnosis result unit side 2 Operate the system in the TEST RUN mode Condition E01 An error in the P C Board in the indoor unit might be considered Terminal board error etc An error in the P C Board in the outdoor unit might be cons
51. ama 1 Press the OFF TIME settin The timer indication is displayed g OFF y button once and the present OFF time is shown Press the Advance Return 4 The timer indication blinks button until AM 11 00 is The time can be set in 10 minute displayed increments Holding down the button advances the time rapidly in 10 minute increments Wait a few seconds and then the The timer indication stops setting is complete blinking and the present time is displayed SETTING THE TIMER CONTINUED 3 How to set the ON time Example To start operation at 7 10 am Operation _ Indication _ 1 Press the ON TIME setting The timer indication is displayed button once and the present ON time is shown Press the Advance Return The timer indication blinks button until AM 7 10 is The time can be set in 10 minute displayed increments Holding down the button advances the time rapidly in 10 minute Increments Wait a few seconds and then The timer Indication stops the setting is complete blinking and the present time is displayed 4 How to set DAILY ON OFF Example To start operation at 7 10 am and stop the air conditioner at 11 00 am REPEAT timer 10 30 pm 7 10 am 11 00 am Present time ON OFF _ j L 1 Set the timer ON OFF times as The present time 10 30 pm and shown in 2 1 2 3 and 3 1 2 3 ov are displayed The ON OFF combination timer uses the current
52. aminants mix with the gas pressure will become extremely high in the refrigerating cycle Prohibit which may cause a unit breakdown When the welded section of the compressor intake or discharge pipe is to be disconnected perform it in a well ventilated place after sufficiently recovering the refrigerant gas Any residue gas may jet out refrigerant or refrigerating machine oil which may cause an injury When the work is to be performed in a high place About 2 meters or more make sure to wear a safety helmet gloves and safety belt Insufficient safety gear may cause a serious injury in case of a fall When the unit is to be relocated confirm that the new installation location has sufficient strength for the weight of the unit Insufficient strength of the installation location incomplete installation work cause the unit falling When the remote controller batteries are replaced dispose of the old batteries out of the reach of children If a child swallows a battery make sure that the child gets immediate medical attention Do not wash the air conditioner with water as this may cause an electric shock or fire S Prohibit For the repair work in places with high humidity or moisture make sure to ground the unit Failure to do so may cause an electric shock Confirm that the component attachment position wiring condition soldering condition and connector connection are normal If not
53. anasonic Corporation 1006 Kadoma Kadoma City Osaka Japan 85264181215001 CV6233187631 FEATURES This air conditioner is an inverter type unit that automatically adjusts capability as appropriate Details on these functions are provided below refer to these descriptions when using the air conditioner e Microprocessor Controlled Operation The interior compartment of the remote controller contains several features to facilitate automatic operation easy logically displayed for easy use Simple One touch Remote Controller The remote controller has several features to facilitate automatic operation 24 Hour ON or OFF Timer This timer can be set to automatically turn the unit on or off at any time within a 24 hour period e 1 Hour OFF Timer This timer can be set to automatically turn off the unit at any time after one hour e Night Setback This function saves energy by controlling operation to provide a quieter operating sound than normal e Automatic and 3 step Fan Speed Auto High Medium Low CONTENTS Page FEAIUFIES uuu HM 2 PRODUCT INFORMATION 2 SAFETY PRECAUTIONS een et nen eee ee cite 2 INSTALLATION LOCATION 3 ELECTRICAL REQUIREMENTS 3 SAFETY INSTRUCTIONS ania 3 NAMES QOF PARTS uuu kuu
54. ar the air condition er inlet or outlet installing in rooms that contain instant on rapid start fluorescent lamps These may prevent the air conditioner from receiving signals places where large amounts of oil mist exist installing in locations where there are devices that generate high frequency emissions DO select an appropriate position from which every corner of the room can be uniformly cooled High on a wall is best select a location that will hold the weight of the unit select a location where tubing and drain hose have the shortest run to the outside Fig 1 allow room for operation and maintenance as well as unrestricted air flow around the unit Fig 2 install the unit within the maximum elevation difference H1 H2 H4 above or below the outdoor unit and within a total tubing length L1 L2 L3 L1 L2 L3 L4 from the outdoor unit as detailed in Table 3 and Fig 3a Fig 1 6 15 cm 2 5 min Front View Fig 2 INDOOR Tubing length L1 UNIT 1 Elevation u L2 difference H1 OUTDOOR UNIT L3 HA INDOOR J INDOOR H3 UNIT 4 L4 UNIT 3 Fig 3a INDOOR UNIT 2 CAUTION For stable operation of the air conditioner do not install wall mounted type indoor units less than 5 1 5 m from floor level Indoor unit Wall Minimum height from floor level 5 1 5 m Floor level
55. ase of emergency Do not turn the air conditioner on and off from the power mains switch Use the ON OFF operation button Do not stick anything into the air outlet of the outdoor unit This is dangerous because the fan is rotating at high speed AN Do not touch the air inlet or the sharp aluminum fins of the outdoor unit You may get injured Keep the fire alarm and the air outlet at least 1 5m away from the unit Do not let children play with the air conditioner Do not cool or heat the room too much if babies or invalids are present Do not sit or step on the unit i You may fall down accidentally Do not stick any object into the FAN CASE You may be injured and the unit damaged This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there
56. ate correctly if this is not YP done N AEX OPERATION 22 17 Fig 59 5 Remote Controller Installation Position The remote controller can be operated from either a non fixed position or a wall mounted position To ensure that the air conditioner operates correctly do not install the remote controller in the following places In direct sunlight Behind a curtain or other place where it is covered More than 26 8 m away from the air conditioner In the path of the air conditioner s airstream Where it may become extremely hot or cold Where it may be subject to electrical or magnetic interference Where there is an obstacle between the remote con troller and the air conditioner since a check signal is sent from the remote controller every 5 minutes 5 1 Mounting on a Wall Before mounting the remote controller press the ON OFF operation button at the mounting location to make sure that the air conditioner operates from that location The indoor unit should make a beeping sound to indicate that it has received the signal Rear side To prevent loss of the remote Mounting screws controller you can connect the 5 32 x 5 8 4 x 16 mm remote controller to the holder by Included passing a string through the remote controller and attachment hole To take out the remote controller pull it forward Fig 61 1 6 Address Switch 6 1 Address Setting of the Remote Contr
57. ause the terminal to overheat or result in unit malfunction A fire hazard may also exist There fore be sure all wiring is tightly connected When connecting each power wire to the corresponding terminal follow the instructions How to connect wiring to the terminal and fasten the wire securely tight with the fixing screw of the terminal plate How to connect wiring to the terminal a For Indoor Unit 1 Cut the wire end with a cutting pliers then strip the insulation to expose the wire about 9 32 7 mm See the label Fig 28 near the terminal plate 2 Using a screwdriver loosen the terminal screw on the terminal plate 3 Insert the wire and tighten the terminal screw com pletely using a screwdriver b For Outdoor Unit For solid core wiring or F cable 1 Cut the wire end with a cutting pliers then strip the insulation to expose the solid wire about 15 16 25 mm Fig 29 2 Using a screwdriver remove the terminal screw s on the terminal plate 3 Using the pliers bend the solid wire to form a loop suitable for the terminal screw 4 Shape the loop wire properly place it on the termi nal plate and fix it securely with the removed termi nal screw using a screwdriver For stranded wiring 1 Cut the wire end with a cutting pliers then strip the insulation to expose the stranded wiring about 3 8 10 mm and tightly twist the wire ends Figs 30 and 31 2 Using a screw
58. be and Insulation Material 1 5 Additional Materials Required for Installation 2 INSTALLATION SITE SELECTION 5 2 1 Indoor Unit 2 2 Embedding the Tubing and Wiring 3 HOW TO INSTALL THE INDOOR UNIT 7 3 1 Remove the Rear Panel from the Unit 3 2 Make a Hole 3 3 Install the Rear Panel on the Wall 3 4 Removing and Installing the Grille 3 5 Shape the Indoor Side Tubing 3 6 Wiring Instructions 3 7 Wiring Instructions for Inter unit Connections 3 8 Mounting 3 9 Drain Hose 4 HOW TO TEST RUN THE AIR CONDITIONER 17 5 REMOTE CONTROLLER INSTALLATION POSITION e e 18 5 1 Mounting on a Wall 6 ADDRESS SWITCH 19 6 1 Address Setting of the Remote Controller 7 CONNECTING A HOME AUTOMATION DEVICE 20 8 INSTALLATION CHECK SHEET 20 CV6233187778 IMPORTANT Please Read Before Starting This air conditioning system meets strict safety and operating standards As the installer or service person it is an important part of your job to install or service the system so it operates safely and efficiently For safe installation and trouble free operation you must Carefully read this instruction booklet before beginning Follow each installation or repair step exactly as shown Observe all local state and national electrical codes Pay close attention to all war
59. coaxial cable signals are weak T Use a noise filter for the wireless device Use a signal booster 42 APPENDIX A Operating Instructions CS MKS7NKU CS MKS9NKU CS MKS12NKU 852 6 4181 214 00 2 A 1 Panasonic Operating Instructions Split System Air Conditioner Model No Indoor Units Outdoor Units CS MKS7NKU CU 3KS19NBU CS MKS9NKU CU 4KS24NBU CS MKS12NKU CU 4KS31NBU This air conditioner uses the refrigerant R410A Before operating the unit read these operating instructions thoroughly and keep them for future reference Panasonic Corporation 1006 Kadoma Kadoma City Osaka Japan 85264181214002 CV6233187648 FEATURES This air conditioner is an inverter type unit that automatically adjusts capability as appropriate Details on these functions are provided below refer to these descriptions when using the air conditioner e Microprocessor Controlled Operation The interior compartment of the remote controller contains several features to facilitate automatic operation easy logically displayed for easy use Simple One touch Remote Controller The remote controller has several features to facilitate automatic operation e 24 Hour ON or OFF Timer This timer can be set to automatically turn the unit on or off at any time within a 24 hour period 1 Hour OFF Timer This timer can be set to automatically turn off the unit at any time after one hour Night Setback This function sa
60. ct damage burst and injury etc Never touch the unit with wet hands Never use or store gasoline or other flammable vapor or liquid near the air conditioner it is very dangerous Do not use this appliance in a potentially explosive atmosphere This air conditioner has no ventilator for intaking fresh air from outdoors You must open doors or windows frequently when you use gas or oil heating appliances in the same room which consume a lot of oxygen from the air Otherwise there is a risk of suffocation in an extreme case Do not swallow the battery After removing the battery from remote controller keep it away from the reach of children The battery can cause death by suffocation if swallowed When inserting the battery make sure the polarities and are correct ANETO p To prevent possible hazards from insulation failure the unit must be grounded Do not clean inside the indoor and outdoor units by users Engage authorized dealer or specialist for cleaning In case of malfunction of this appliance do not repair by yourself Contact to the sales dealer or service dealer for a repair Refrigerant gas leakage may cause fire For safety be sure to turn the air conditioner off and also to disconnect the power before cleaning E Pull off the power plug from a receptacle or switch off the breaker or switch off the power disconnecting mean to isolate the air conditioner from the main power supply in c
61. driver remove the terminal screw s on the terminal plate 3 Using a ring connector fastener or pliers securely clamp each stripped wire end with a ring connector Fig 30 4 Place the ring connector wire and replace and tighten the removed terminal screw using a screw driver Fig 32 13 Special washer i Strip 15 16 25 mm Strip 3 8 10 mm 9 32 STRIP 7 mm ACTUAL SIZE 5 77 Fig 28 Insulation Fig 29 Stranded wire SIZE Solid wire i Loop lt Ring connector pud Fig 30 Twist wire ends B dd N Fig 31 Screw Ring connector ES Terminal plate ae Wire Fig 32 an L D Screw and special washer Ring connector 3 8 Mounting 1 To install the indoor unit mount the indoor unit onto the 2 tabs on the upper part of the rear plate 2 Hold down the air discharge outlet and press the lower part of the indoor unit until it clicks to securely fasten to the 2 tabs on the lower part of the rear plate Fig 33 For tubing choose either the right or left tubing direction and follow the steps below This work can be made easi er by placing padding material such as styrofoam at the rear right side of the indoor unit Fig 34 B Right side tubing 1 Shape the refrigerant tubing so that it can easily go into the wall hole Fig 35 2 Push the wiring refrigeran
62. eater or in direct sunlight press the SENSOR button to switch to the sensor on the indoor unit NOTE The indoor fan runs continuously when the system is in normal operation It does not turn off when the desired room temperature is reached If Night Set Back mode is selected the fan will turn off intermittently during cooling operation in order to control air flow REMOTE CONTROLLER CONTINUED Temperature Display Selector This switches the temperature display between C and F button Time Display Selector button This switches the time display between 24 hour time and 12 hour time ACL button ALL CLEAR Puts the remote controller into pre operation status Always press this button after replacing the batteries ADDRESS switch The address switch changes to prevent mixing of signals from remote controller s when two air conditioners are installed next to each other Normally the address switch is set to A For more information please contact the dealer where you made the purchase Normally the tabs on the remote controller should not be bent The remote controller sends the temperature signal to the air conditioner regularly at five minute intervals If the signal from the remote controller stops for more than 15 minutes due to the loss of the remote controller or other trouble the air conditioner will switch to the temperature sensor which is built into the indoor unit and control the room temperature In the
63. ent intrusion of dirt or moisture If an embedded tube is to be left for a long time fill the tube with nitrogen and seal both ends securely If a tube is left open for an extended time moisture in the air inside the tubing may condense into water droplets and lead to water contamination of the refrig erant circuit In order to prevent insulation breakdown and ground faults do not allow wiring ends to come in contact with rainwater or be subjected to condensation or dew Apply sufficient thermal insulation to the refrigerant tubing and drain pipes 3 How to Install the Indoor Unit 3 1 Remove the Rear Panel from the Unit 1 Remove and discard the set screw on the rear panel Fig 6 2 Press the 2 marks on the frame cover and disen gage the stationary tabs from the frame Fig 7 3 Remove the rear panel Tubing can be extended in 5 or 6 directions as shown in Fig 8 Select the direction you need providing the short est run to the outside unit e When left tubing is to be done switch the drain hose and drain cap For details refer to Switching drain hose and drain cap on page 15 3 2 Make a Hole 1 Place the rear panel from the indoor unit on the wall at the location selected Make sure the panel is hori zontal using a carpenter s level or tape measure to measure down from the ceiling Wait until after cut ting the hole before attaching the rear panel to the wall 2 Determine which side
64. ep the heat out 4 Obstacle near air intake or air discharge port 4 Remove it to ensure good airflow 5 Thermostat is set too high for cooling 5 Set the temperature lower This is normal and the sound will soon disappear Clicking sound is heard from the air conditioner In cooling operation any plastic parts may shrink due to a sudden temperature change In this event a clicking sound may occur OPERATION lamp lights but outdoor unit will not run 1 Turn off the power then restart the air conditioner after a while The use of cellular phones near the air conditioner may cause disturbance to its normal operation 2 Consult your dealer OPERATING RANGE The air conditioner is operable within the temperature ranges as listed below EENENL LRL LL Outdoor air temperature 95 F DB 71 F WB 115 F DB COOLING Max Min 67 F DB 57 F WB 14 F DB 24 SPECIFICATIONS Model No Indoor Unit CS MKS18NKU CS MKS24NKU Power Source Single phase 208 230 V 60 Hz W Cooling Capacit w Y k k BTUh Operation Cooling Operation H M L 41 38 34 44 41 38 Sound jHeatngOperaion HML dB A Unit Dimensions HxWxD w 11 23 32x41 15 16x8 5 8 11 23 32x41 15 16x8 5 8 Indoor unit Include panel inch mm 298x1 065x219 298x1 065x219 Net Weight lbs kg 26 5 12 0 26 5 12 0 Model No Outdoor Unit CU 3KS19NBU CU 4KS24NBU CU 4KS31NBU Power Sou
65. erant tubing Fig 22 compressor or any moving parts of the fan 6 Unauthorized changes in the internal wiring can be very dangerous The manufacturer will accept no responsibility for any damage or misoperation that as a result of such unauthorized changes 11 3 7 Wiring Instructions for Inter unit Connections 1 Insert the inter unit wiring according to local codes into the through the wall PVC pipe Run the wiring toward the indoor side allowing approx 10 25 cm to extend from the wall face Fig 24 Grasp both ends of the air intake grille and remove it by opening towards the front and pulling towards you Remove the screw on the right side cover plate and open the cover Fig 25 Route the inter unit wiring from the back of the indoor unit and pull it toward the front for connec tion Figs 26a and 26b Connect the inter unit wiring to the corresponding terminals on the terminal plate Figs 26a and 26b while referring to the wiring diagram Be sure to secure the wiring with the provided clamp When closing the air intake grille press the bottom right and left corners and center Fig 27 Please refer to How to replace the grille on page 9 or 10 for installing the air intake grille Wall Terminal plate Lock nut Top of conduit connector Fig 26b 12 Loose wiring may c
66. ervice center 3 Consult your electrician or dealer 4 Replace batteries run down OPERATION lamp blinks and air Trouble in system Contact service center conditioner does not operate Compressor runs but soon stops Obstruction in front of condenser coil Remove obstruction Outdoor Unit Poor cooling performance 1 Clean air filter to improve airflow 1 Dirty or clogged air filter 2 Heat source or many people in room 2 Eliminate heat source if possible 3 Doors and or windows are open 3 Shut them to keep the heat out 4 Obstacle near air intake or air discharge port 4 Remove it to ensure good airflow 5 Thermostat is set too high for cooling 5 Set the temperature lower This is normal and the sound will soon disappear Clicking sound is heard from the air conditioner In cooling operation any plastic parts may shrink due to a sudden temperature change In this event a clicking sound may occur OPERATION lamp lights but outdoor unit will not run 1 Turn off the power then restart the air conditioner after a while The use of cellular phones near the air conditioner may cause disturbance to its normal operation 2 Consult your dealer OPERATING RANGE The air conditioner is operable within the temperature ranges as listed below EENENL LRL LL Outdoor air temperature 95 F DB 71 F WB 115 F DB COOLING Max Min 67 F DB 57 F WB 14 F DB 24 SP
67. fan speed setting to provide a quieter operating sound Page SPECIAL REMARKOS 16 SETTING THE nie aqua cun 17 USING THE 1 HOUR OFF TIMER 19 TIPS FOR ENERGY SAVING 19 ADJUSTING THE AIRFLOW DIRECTION 20 OPERATION WITHOUT THE REMOTE CONTROLLER 21 CARE AND CLEANING 21 WIRED REMOTE CONTROLLER 23 TROUBLESHOOTING BEFORE CALLING FOR SERVICE 24 OPERATING RANGEFE 24 SPECIFICATIONS 25 SAFETY PRECAUTIONS The following symbols used in this manual alert you to potentially dangerous conditions to users service personnel or the appliance WARNING This symbol refers to a hazard or N unsafe practice which can result in severe personal injury or death This symbol refers to a hazard or AN unsafe practice which can result in personal injury or product or property damage INSTALLATION LOCATION We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit Before installation check that the voltage of the electric supply in your home or
68. form all electric work according to local applicable regulations related to electrical equipment or interior wiring regulation and make sure to use the exclusive circuit Insufficient capacity to the electric circuit or defective arrangement results may cause an electric shock or fire Make sure to replace any power cable or lead wire showing any signs of scratch or deterioration Failure to do so may cause an electric shock overheating or fire Make sure that there is no dust on or slack in the power plug and insert fully into the socket Dust or incomplete connections may cause an electric shock or fire Do not damage or process the power cord as it may cause an electric shock or fire For the wiring between the indoor unit and outdoor unit securely fix the specified cable onto the terminal plate Poorly fixed wiring may cause a heat or fire After connecting the wiring between the indoor unit and outdoor unit attach the terminal cover securely Incomplete attachment of the terminal cover may cause overheating or fire Prohibit Prohibit Prohibit Prohibit Prohibit elejere iep If refrigerant gas blows off during the work do not touch the refrigerant gas as it may cause frostbite S Prohibit If refrigerant gas leaks during the work ventilate the room If refrigerant gas catches fire harmful gas may be generated Do not mix any gas other than the specified refrigerant gas in the refrigerating cycle If air or other cont
69. g can be changed after a timer program has been set even when the unit is stopped Even when operation is stopped during an ON timer program the unit will start operating when the set time is reached provided that the program is not canceled e When the ON timer and OFF timer are set to the same time the timer operates as if it is turned off 18 USING THE 1 HOUR OFF TIMER 1 1 Hour OFF Timer This function causes the unit to operate for one hour and then stop regardless of whether the unit is on or off when this button is pressed The indicator in the display indicates that this function is operating Setting procedure Regardless of whether the unit is operating or stopped press the 1 HR TIMER button appears in the display ON OFF O QUIET Cancellation procedure Press the ON OFF operation button to turn the unit off wait for the unit to stop operating and then press the ON OFF operation button again The 1 Hour Timer function is now cancelled and the unit operates normally f while the 1 Hour Timer function is operating the 1HR TIMER button is pressed once to cancel the function and then again the unit continues to operate for one hour from that point in time and then stops e 15 not possible to use the OFF Timer and 1 Hour OFF Timer together Whichever function is set last takes precedence If the 1 HR TIMER button is pressed while the TIMER OFF function operates the OFF Timer is cancelled and the unit
70. h 7 m Mode and en the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F when 30 minutes have passed after the selection was made and then another 2 F after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle cooling is needed Setting temperature Es Press the NIGHT SETBACK button OPERATION WITH THE REMOTE CONTROLLER CONTINUED 5 QUIET Mode QUIET Mode is used to reduce the fan sound of the indoor unit Press the QUIET button The mark appears in the display To cancel press QUIET button again ON OFF O QUIET e n QUIET Mode the fan rotates at a slower speed than the fan speed setting e Ifthe unit is already operating with a very low airflow the fan sound may not change even if the QUIET button is pressed HIGH POWER mode can be used to increase the output of the indoor unit for all operation modes Press the HIGH POWER button while unit is operating mark appears in the display To cancel press HIGH POWER button again e When the HIGH POWER button is pressed the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High e QUIET Mode and HIGH POWER Mode cannot be used at the same time
71. he batteries last about six months depending on how much you use the remote controller Replace the batteries when the remote controller s display fails to light or when the remote controller cannot be used to change the air conditioner s settings Use two fresh leak proof type AAA alkaline batteries In replacing batteries follow the instructions as mentioned in the subsection How to Install Batteries If you do not use the remote controller more than 1 month take out the batteries Dispose of the used batteries at the designated location in compliance with the applicable local ordinances Information for Users on Collection and Disposal of Old Equipment and used Batteries Information on Disposal in other Note for the battery symbol bottom two Countries outside the European Union symbol examples These symbols are only valid in the This symbol might be used in combination European Union If you wish to discard these with a chemical symbol In this case it items please contact your local authorities complies with the requirement set by the or dealer and ask for the correct method of Directive for the chemical involved disposal 10 USING THE REMOTE CONTROLLER CONTINUED How to Use the Remote When using the remote controller always point the unit s transmitter head directly Controller at the air conditioner s receiver Air Conditioner Indoor unit ES Receiver Remote Controller kj Transmitter head
72. he main unit and Wipe clean using a soft dry cloth Remote Controller remove stubborn dirt moisten a cloth in warm water no hotter than 104 F wring thoroughly and then wipe he air intake grille can be removed in order to wash it with water Removing and remounting the Refer to How to remove the filter and How to replace the filter on page 22 air intake grille When using a footstool or the like be careful not to let it tip over CAUTION Washing the grille with water Clean the grille gently using a soft sponge or the like Then wipe away remaining moisture e Neutral detergent may be used to remove stubborn dirt Then rinse thoroughly with water and wipe away any remaining moisture WIRED REMOTE CONTROLLER A separately sold wired remote controller CZ RD515U used with this air conditioner is also available If you wish to use the wired remote control function you will need to purchase both the optional wired remote controller and its connection kit CZ RC515U 23 TROUBLESHOOTING BEFORE CALLING FOR SERVICE If your air conditioner does not work properly first check the following points before requesting service If it still does not work properly contact your dealer or service center Air conditioner does not run at all 1 Power failure 2 Leakage circuit breaker tripped 3 Line voltage is too low 4 Batteries in remote controller have 1 Restore power 2 Contact s
73. idered What is the self diagnosis result Connection error between the P C Board in the outdoor unit and J B An error in the inter unit wiring might be considered ex wire breaking or connection error etc Condition E12 An error in the inter unit wiring Condition E01 might be considered ex wire breaking or connection error etc An error in the P C Board in the outdoor unit might be considered Connection error between the P C Board in the outdoor unit and J B 39 3 2 Condition 12 1 Disconnect the inter unit wiring on the indoor unit side 2 Operate the system in TEST RUN mode Then five minutes later perform the self diagnosis Condition E01 What is the self diagnosis result Condition E12 1 Disconnect the inter unit wiring on the outdoor An error in the P C Board in the unit side indoor unit might be considered 2 Operate the system in TEST RUN mode Then Terminal board error etc five minutes later perform the self diagnosis Condition EO1 What is the self diagnosis result Condition E12 An error in the P C Board in the An error in the inter unit wiring outdoor unit might be considered might be considered Connection error between the P C Board in ex wire breaking or connection error etc the outdoor unit and J B 40 8 4 Trouble Diagnosis of Fan Motor 8 4 1 Indoor Fan Motor e This indoor DC fan motor con
74. ing may cause over heating at connection points and a possible fire hazard To prevent possible hazards from insulation failure D the unit must be grounded When Transporting Be careful when picking up and moving the indoor out door units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin alu minum fins on the air conditioner can cut your fingers When Installing Select installation location which is rigid strong enough to support or hold the unit and select a location for easy maintenance 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 dripping and water damage to walls and floors Keep the fire alarm and the
75. ion The indoor unit should make a beeping sound to indicate that it has received the signal Remote Control Holder Mounting Screws 9 32 x 5 8 4 x 16 mm included Set in 1 place To prevent loss of the remote controller you can connect the remote controller to the holder by passing a string through the remote controller and attachment hole To take out the remote controller pull it forward When Holding the Remote When using the remote controller and during air conditioner operation the Controller transmitter on the remote controller should be pointed towards the receiver on the indoor unit e Make sure that there are no objects between the remote controller and receiver which could block the signal 11 OPERATION WITH THE REMOTE CONTROLLER 1 Operation AM 404 7474 WER MIO ON I OFF O QUIET STEP 1 FLAP HIGH POWER NOTE Check that the circuit breaker on the power panel is turned on Press the setting buttons as described below and change the settings as desired Press the MODE selector button and select the desired mode For dehumidifying operation gt O For cooling operation fe For fan only operation gt 96 STEP 2 start the air conditioner press the ON OFF operation button STEP 3 Press the TEMP setting buttons to change the temperature setting to the desired temperature Adjustable temperature range 30 max or 86 F max 16 C min 60 F min
76. ions are secure and water drains properly Putty has been used to close the hole in the wall Remote controller signals are being positively received 20 DC1111 0
77. ir in a sweeping motion around the room and providing comfort in every corner e Auto Flap Control This automatically sets the flap to the optimum position during heating cooling and drying operation e Automatic Restart Function for Power Failure Even when power failure occurs preset programmed operation can be reactivated once power resumes High Power Operation The unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High Quiet Operation The fan rotates slower than the fan speed setting to provide a quieter operating sound Page SPECIAL REMARKOS 16 SETTING THE TIMER 17 USING THE 1 HOUR OFF TIMER 19 TIPS FOR ENERGY SAVING 19 ADJUSTING THE AIRFLOW DIRECTION 20 OPERATION WITHOUT THE REMOTE CONTROLLER 21 CARE AND CLEANING 21 WIRED REMOTE CONTROLLER 23 TROUBLESHOOTING BEFORE CALLING FOR SERVICE 24 OPERATING RANGEFE 24 SPEGIFICATIONS5 eee er eee ete 25 SAFETY PRECAUTIONS The following symbols used in this manual alert you to potentially dangerous conditions to users
78. is heard from the second indoor unit approximately 5 times The sound you hear is the signal that the remote controller address has been changed 7 Finally press the remote controller ACL Reset but ton to cancel the blinking oP 7 display Fig 64 Changing of the second remote controller address is now completed 19 QUIET button ACL button Fig 63 AIR CONDITIONER I OFF O ON OFF QUIET MA operation button wO a 1HR TEMP TIMER button FAN SPEED NIGHT SETBACK FLAP HIGH POWER CANCEL CLOCK SENSOR ADR CAF 12H4 gt 24H ac ACL Reset button 7 Connecting a Home Automation Device The HA white 4P terminal is located on the indoor unit PCB If a HA device will be used connect it to this terminal 8 Installation Check Sheet The strength of the installation location is sufficient to support the air conditioner weight The indoor and outdoor units are installed level and vertically The power and voltage are as specified Inter unit cables are securely inserted into the terminal block Inter unit cables are securely fixed The power cable and inter unit cables are not connected anywhere along their paths The ground wire is securely connected Thermal insulation has been applied to the tubing connections Drain connect
79. it display Each time this button is pressed the OPERATION lamp changes color to indicate the type of operation Select the desired type of operation GREEN Lamp Off tL The set temperature is 4 F 2 C below the detected room temperature in the case of cooling operation 32 SENSOR DRY During DRY operation the system adjusts the room temperature and fan speed according to the conditions in the room in order to maintain a comfortable room environment SENSOR DRY operation DRY operation is as shown in the figure below Load COOL zone Conditions are monitored at all times when the room temperature is below 59 F 15 C The compressor operation frequency varies The indoor fan operates with 1 f fluctuation The compressor operates at a low operating frequency The indoor fan operates with 1 f fluctuation e Monitoring operation takes place when the room temperature is below 59 F 15 C or more than 5 F 3 C below the set temperature When the monitoring range is entered the compressor stops and the indoor fan operates with 1 f fluctuation Men models only The Sensor Dry operation during the Low Ambient Cooling Mode outside air temperature 59 F 15 C or lower is as follows The compressor operates a cycle of 3 minutes ON and 6 minutes OFF repeatedly B control n order to further improve inverter performance control is switched between PWM control at low
80. it may cause overheating or fire Confirm that the temperature around the compressor is not too high and then perform the repair work Failure to do so may cause a burn Perform welding work in a place with good ventilation If the work is performed in a poorly ventilated area it might cause a lack of oxygen If the installation plate or attachment frame has deteriorated due to corrosion etc replace it Failure to do so may cause an injury due to the unit falling When the cleaning is to be performed make sure to turn off the power and pull out the plug Touching the fan that is rotating at high speed may result in an injury When the indoor unit is to be removed do not place it on an incline S Doing so may cause wet furniture because water left inside may trickle down Prohibit Do not hold the sharp end of the unit or the aluminum fins as it may cause an injury to your hand or finger S Prohibit After repairs make sure to measure the insulation resistance and confirm that the value is 1 Mohm or more Any insulation error may cause an electric shock After repairs make sure to check the drainage of the indoor unit Inappropriate drainage may cause wet furniture and floors due to water leakage Table of Contents Page N SAFETY PRECAUTIONS Hem 2 TABLE OF CONTENTS ene 4 m APPLICABLE MULTI OUTDOOR UNITS
81. ity of Sensor Sensor Name Sra CS MKS7NKU CS MKS9NKU CS MKS12NKU CS MKS18NKU CS MKS24NKU n 1 Indoor air temp sensor iii PTM D51H S3 2 TH2 A s 2 Resistance k ohm y O 50 59 68 77 86 95 104 10 15 20 25 30 35 40 V Temperature F Model No Quantity of Sensor Sensor Name Gf Sensor CS MKS7NKU CS MKS9NKU CS MKS12NKU CS MKS18NKU CS MKS24NKU PTM D51H S3 TH1 Indoor heat exchanger sensor PTM D51H 1 1 S3 2 TH1 E EE _ AL Resistance k ohm 0 10 20 30 40 50 60 70 80 90 gt Temperature F C 22 3 DIMENSIONAL DATA CS MKS7NKU CS MKS9NKU CS MKS12NKU Indoor Unit 8 L cl 9L vI c Z Ll ce ec ZL c 81 c 6679 v L elp eqni MOEN 81 26 62 eip esou 24 6 8 eIp eqni 2 1 2 4 N 684 91 yE A el I h Dal it WE DA x cum ss eee m SEI LIT aS m TR a 9114 gt N 6 60 2 9 Unit inch mm 852 0 0010 215 00 0 28 2 SL 2 918 ZE E ZE 23 CS MKS18NKU CS MKS24NKU Indoor Unit 8L c ec esou z ce ec Lt QL SL LV c c Lt Ge 9 v m 9L EE 8L 5 ce Sc L L eip MOEN 1MNTZSM
82. mote controller should be pointed towards the receiver on the indoor unit e Make sure that there are no objects between the remote controller and receiver which could block the signal 11 OPERATION WITH THE REMOTE CONTROLLER 1 Operation AM 404 7474 WER MIO ON I OFF O QUIET STEP 1 FLAP HIGH POWER NOTE Check that the circuit breaker on the power panel is turned on Press the setting buttons as described below and change the settings as desired Press the MODE selector button and select the desired mode For dehumidifying operation gt O For cooling operation fe For fan only operation gt 96 STEP 2 start the air conditioner press the ON OFF operation button STEP 3 Press the TEMP setting buttons to change the temperature setting to the desired temperature Adjustable temperature range 30 max or 86 F max 16 C min 60 F min STEP 4 Set the FAN SPEED selector button to the setting you want STEP 5 Press the FLAP button and set the airflow direction as desired Refer to ADJUSTING THE AIRFLOW DIRECTION on page 20 To stop the air conditioner press the ON OFF operation button again 12 OPERATION WITH THE REMOTE CONTROLLER CONTINUED NOTE Choose the best position in the room for the remote controller which also acts as the sensor for room comfort and transmits the operating instructions Once you ve found this best position always keep the remo
83. mple To start operation at 7 10 am Operation _ Indication _ 1 Press the ON TIME setting The timer indication is displayed button once and the present ON time is shown Press the Advance Return The timer indication blinks button until AM 7 10 is The time can be set in 10 minute displayed increments Holding down the button advances the time rapidly in 10 minute Increments Wait a few seconds and then The timer Indication stops the setting is complete blinking and the present time is displayed 4 How to set DAILY ON OFF Example To start operation at 7 10 am and stop the air conditioner at 11 00 am REPEAT timer 10 30 pm 7 10 am 11 00 am Present time ON OFF _ j L 1 Set the timer ON OFF times as The present time 10 30 pm and shown in 2 1 2 3 and 3 1 2 3 ov are displayed The ON OFF combination timer uses the current time as the reference and it is activated starting from whichever set time comes first e With the ON OFF combination timer the settings are repeated every day e You can check the timer ON OFF times after you have set them by pressing the ON TIME and OFF TIME setting buttons Press the CANCEL button e When either an ON or OFF timer is to be canceled press the button corresponding to the timer whose program is to be canceled and then press the CANCEL button To cancel a timer program The airflow direction fan speed and temperature settin
84. mps remain OFF if no trouble has occurred IMPORTANT After self diagnostics is completed be sure to press the ACL reset button to return to normal mode The air conditioner will not operate if this is not done 35 Clock display gt Testrun mode n 3 Self diagnostics mode O O O O AIR CONDITIONER ON OFF operation button QUIET button TIMER button MODE FANSPEED NIGHTSETBACK FLAP HIGH POWER TIMER C gt A A a gt Gb CANCEL Ge SENSOR 12H49 24H ADR Q ACL ACL PEUX Jey HG HG Reset button 1 Self diagnostics Lamps INDOOR UNIT r 1 OPERATION lamp mmr 2 TIMER lamp yrr 3 QUIET lamp y 14 OPERATION button REMOTE CONTROL receiver the indications cover various units the corresponding parts listed below may not be present in some models INDICATION ON INDOOR UNIT lt OFF BLINKING T ON QUIET TIMER CODE DIAGNOSIS CONTENTS POSSIBLE MALFUNCTION 2 1 501 ROOM SENSOR TROUBLE 1 SHORT CIRCUIT SENSOR UD HEAT EXCHANGER 2 POOR CONTACT AT CONNECTOR OR OPEN CIRCUIT AT S02 TERMINAL PRESS FIT LOCATION FOR HUMIDITY SENSOR US ioe THIS REPRESENTS SHORT CIRCUIT DETECTION ONLY 503 HUMIDITY SENSOR TROUBLE 3 VD FAILURE I D INDOOR 04 COMPRESSOR TEMP SENSOR TROUBLE 1 OPEN OR SHORT CIRCU
85. ne of the above measured values is not normal Indoor unit controller trouble Replace the controller Reference Trouble symptom 3 Trouble symptom 4 Trouble symptom 5 DC motor connector pin arrangement Pin 1 Vm red Pin 2 Not used Pin 3 Gnd black Pin 4 Vcc white Pin 5 Vs yellow Pin 6 PG blue Motor rotates for some time several seconds but then quickly stops when the indoor unit operates There is trouble in the system that provides feedback of motor rotation speed from the motor to the indoor unit controller Fan motor rotation speed does not change during indoor unit operation Fan motor rotation speed varies excessively during indoor unit operation Remedy for symptom 3 to 5 It is not possible to identify whether the trouble is indoor unit controller trouble or motor trouble Therefore first replace the indoor unit controller then if necessary replace the DC motor 41 8 5 Noise Malfunction and Electromagnetic Interference An inverter A C operates using pulse signal control and high frequencies Therefore it is susceptible to the effects of external noise and is likely to cause electromagnetic interference with nearby wireless devices A noise filter is installed for ordinary use preventing these problems However depending on the installation conditions these effects may still occur Please pay attention to the points listed below 1 Noise malfunction This refers
86. ng a soft sponge or the like Then wipe away remaining moisture e Neutral detergent may be used to remove stubborn dirt Then rinse thoroughly with water and wipe away any remaining moisture WIRED REMOTE CONTROLLER A separately sold wired remote controller CZ RD515U used with this air conditioner is also available If you wish to use the wired remote control function you will need to purchase both the optional wired remote controller and its connection kit CZ RC515U 23 TROUBLESHOOTING BEFORE CALLING FOR SERVICE If your air conditioner does not work properly first check the following points before requesting service If it still does not work properly contact your dealer or service center Air conditioner does not run at all 1 Power failure 2 Leakage circuit breaker tripped 3 Line voltage is too low 4 Batteries in remote controller have 1 Restore power 2 Contact service center 3 Consult your electrician or dealer 4 Replace batteries run down OPERATION lamp blinks and air Trouble in system Contact service center conditioner does not operate Compressor runs but soon stops Obstruction in front of condenser coil Remove obstruction Outdoor Unit Poor cooling performance 1 Clean air filter to improve airflow 1 Dirty or clogged air filter 2 Heat source or many people in room 2 Eliminate heat source if possible 3 Doors and or windows are open 3 Shut them to ke
87. ning and caution notices given in this manual This symbol refers to a hazard or unsafe practice which can WARNING result in severe personal injury or death This symbol refers to a hazard or unsafe practice which can result in personal injury or prod uct or property damage If Necessary Get Help These instructions are all you need for most installation sites and maintenance conditions If you require help for a special problem contact our sales service outlet or your certified dealer for additional instructions In Case of Improper Installation The manufacturer shall in no way be responsible for improp er installation or maintenance service including failure to follow the instructions in this document SPECIAL PRECAUTIONS WARNING When Wiring 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH ONLY A QUALIFIED EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked Highly dangerous electrical voltages are used in this system Carefully refer to the wiring diagram and these instructions when wiring Improper connections and inadequate grounding can cause accidental injury or death Ground the unit following local electrical codes Connect all wiring tightly Loose wir
88. nute intervals SETTING THE TIMER MODE C 2 FAN SPEED NIGHT SETBACK FLAP HIGH POWER NOTE In the descriptions below the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote controller e Temperature F Time AM PM 1 How to set the present Example To set to 10 30 pm time x Operation dan Press the CLOCK button once if The time indication alone flashes the time indicator is not flashing Press the Advance Return The time can be set in 1 minute button until PM 10 30 is increments Holding down the button displayed advances the time rapidly in 10 minute increments Press the CLOCK button again This completes the setting of the current time 2 How to set the OFF time Example To stop the air conditioner at 11 00 am Kama 1 Press the OFF TIME settin The timer indication is displayed g OFF y button once and the present OFF time is shown Press the Advance Return 4 The timer indication blinks button until AM 11 00 is The time can be set in 10 minute displayed increments Holding down the button advances the time rapidly in 10 minute increments Wait a few seconds and then the The timer indication stops setting is complete blinking and the present time is displayed SETTING THE TIMER CONTINUED 3 How to set the ON time Exa
89. o not clean inside the indoor and outdoor units by users Engage authorized dealer or specialist for cleaning In case of malfunction of this appliance do not repair by yourself Contact to the sales dealer or service dealer for a repair Refrigerant gas leakage may cause fire For safety be sure to turn the air conditioner off and also to disconnect the power before cleaning E Pull off the power plug from a receptacle or switch off the breaker or switch off the power disconnecting mean to isolate the air conditioner from the main power supply in case of emergency Do not turn the air conditioner on and off from the power mains switch Use the ON OFF operation button Do not stick anything into the air outlet of the outdoor unit This is dangerous because the fan is rotating at high speed AN Do not touch the air inlet or the sharp aluminum fins of the outdoor unit You may get injured Keep the fire alarm and the air outlet at least 1 5m away from the unit Do not let children play with the air conditioner Do not cool or heat the room too much if babies or invalids are present Do not sit or step on the unit i You may fall down accidentally Do not stick any object into the FAN CASE You may be injured and the unit damaged This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must
90. of the unit you should make the hole for tubing and wiring Fig 9a or 9b In the case of left rear tubing use the measurement points from the edge of the rear panel for precise place ment of the hose outlet Fig 9a or 9b 3 Before making the hole check carefully that no studs or pipes are directly run behind the spot to be cut CAUTION Also avoid areas where elec trical wiring or conduits are located The above precautions are also applicable if tubing goes through the wall in any other location Set screw only for transportation Fig 6 Rear panel Right rear Left Left rear tubing tubing _ tubing recommended Right tubing Left downward tubing Not applicable for CS MKS18NKU CS MKS24NKU Right downward tubing Fig 8 CS MKS7NKU CS MKS9NKU CS MKS12NKU 2 3 4 70 mm Fig 9a 2 3 8 mm CS MKS18NKU CS MKS24NKU 4 Using a sabre saw key hole saw or hole cutting drill attachment cut a hole in the wall See Table 4 and Fig 10 Table 4 Hole Dia CS MKS7NKU CS MKS18NKU CS MKS9NKU CS MKS24NKU CS MKS12NKU 2 9 16 65 mm 3 5 32 80 mm 5 Measure the thickness of the wall from the inside edge to the outside edge and cut PVC pipe at a slight angle 1 4 6 mm shorter than the thickness of the wall Fig 11 6 Place the plastic cover over the end of the pipe for indoor side only and insert the pipe in
91. oller The address can be set in order to prevent interference between remote controllers when 2 indoor units are installed near each other The address is normally set to A To set a different address it is necessary to change the address on the second remote controller Once changed you cannot restore the original address setting of the air conditioner 1 Switch on the power source 2 Break the address setting tab marked A on the second remote controller to change the address Fig 62 When the tab is removed the address is automatically set to B Fig 63 3 Press and hold the remote controller QUIET button and 1HR TIMER button Then press and hold the ACL Reset button with a pointed object such as the tip of a pen After 5 seconds release the ACL button first then release the QUIET and 1HR TIMER buttons oP 1 Test Run appears blinking in the remote controller clock display area 4 Each time the 1HR TIMER button is pressed the display changes as shown below Press this button 2 times to change the display to oP 7 Address setting Fig 64 l E i Test run mode Q w 4 3 Selfdiagnostic mode N ww lt 4 Address setting mode X 5 7 has now been selected for address setting 6 Press the ON OFF operation button on the remote controller Fig 64 Check that the beep signal received sound
92. omagnetic Interference w Grasyas ara CM SA RENS 42 APPENDIX A Operating Instructions Tp A 1 APPENDIX Operating Instructions qp ee ee ee ee er 2 APPENDIX C INSTALLATION INSTRUCTIONS s asha usa aa ma A 3 m APPLICABLE MULTI OUTDOOR UNITS CU 3KS19NBU CU 4KS24NBU CU 4KS31NBU 1 OPERATING RANGE Combination with cooling outdoor unit CU 3KS19NBU CU 4KS24NBU or CU 4KS31NBU Temperature Indoor Air Intake Temp Outdoor Air Intake Temp 95 F DB 71 F WB 115 F DB Cooling 2 SPECIFICATIONS 2 1 Unit Specifications Indoor Unit CS MKS7NKU lt 230V gt Voltage Rating 230V Single Phase 60Hz Performance Capacity BTU h 7 500 kW 2 20 Air Circulation Hi Me Lo ft min m3 h 241 410 224 381 212 360 Moisture Removal High Pints h Control Temperature Control Microprocessor Thermistor Control Unit Wireless Remote Control Unit 24 Hour ON or OFF Timer 1 Hour OFF Timer Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A Qt 2 Quiet mode Refrigerant Tubing Connections Refrigerani Narrow tube mm Tube Diameter Wide tube mm Dimensions amp Weight Indoor Unit Unit Dimensions 11 7 32 285 DATA SUBJECT CHANGE WITHOUT NOTICE Indoor Unit CS MKS7NKU lt 208V g
93. on settings MODE FAN SPEED NIGHT SETBACK 5 SWEEP 47 C 2 FLAP HIGH POWER 2 D A Sweep function B Setting the airflow manually P The flap starts moving and down to Referring to the above illustration use the 77 deliver air over the sweep range FLAP button to set the airflow direction within the range used during the cooling or C Auto flap function dehumidifying operation E The flap is set to the recommended position NOTE e The flap automatically closes when the unit is off e Use the FLAP button on the remote controller to adjust the position of the flap If you move the flap by hand the flap position according to the remote controller and the actual flap position may no longer match If this should happen shut off the unit wait for the flap to close and then turn on the unit again the flap position will now be normal again Do not have the flap pointed down during cooling operation Condensation may begin to form around the air vent and drip down 20 OPERATION WITHOUT THE REMOTE CONTROLLER INDOOR UNIT as OPERATION TIMER QUIET OPERATION OPERATION button ANET Casing and Grille Indoor Unit p If you have lost the remote controller or it has trouble follow the steps below When the air conditioner is not running Each time the OPERATION button is pressed the operation mode changes cyclically Cooling operation
94. onditioner from the main power supply when not in use for a long time SAFETY INSTRUCTIONS Read this Instruction Manual carefully before using this air conditioner If you still have any difficulties or problems consult your dealer for help This air conditioner is designed to give you comfortable room conditions Use this only for its intended purpose as described in this Instruction Manual Confirm to authorized dealer or specialist on usage of specified A refrigerant type Using of refrigerant other than the specified type may cause product damage burst and injury etc Never touch the unit with wet hands Never use or store gasoline or other flammable vapor or liquid near the air conditioner it is very dangerous Do not use this appliance in a potentially explosive atmosphere This air conditioner has no ventilator for intaking fresh air from outdoors You must open doors or windows frequently when you use gas or oil heating appliances in the same room which consume lot of oxygen from the air Otherwise there is a risk of suffocation in an extreme case Do not swallow the battery After removing the battery from remote controller keep it away from the reach of children The battery can cause death by suffocation if swallowed When inserting the battery make sure the polarities and are correct A prevent possible hazards from insulation failure the unit must be grounded D
95. ormal again Do not have the flap pointed down during cooling operation Condensation may begin to form around the air vent and drip down 20 OPERATION WITHOUT THE REMOTE CONTROLLER INDOOR UNIT as OPERATION TIMER QUIET OPERATION OPERATION button ANET Casing and Grille Indoor Unit p If you have lost the remote controller or it has trouble follow the steps below When the air conditioner is not running Each time the OPERATION button is pressed the operation mode changes cyclically Cooling operation Stop The temperature is set to the room temperature minus 4 F during the cooling operation and the fan speed and flap are set to Auto CARE AND CLEANING For safety be sure to turn the air conditioner off and also to disconnect the power before cleaning Do not pour water on the indoor unit to clean it This will damage the internal components and cause an electric shock hazard Clean the casing and grille of the indoor unit with a vacuum cleaner brush or wipe them with a clean soft cloth If these parts are stained use a clean cloth moistened with a mild liquid detergent When cleaning the grille be careful not to force the vanes out of place 1 Never use solvents or harsh chemicals when cleaning the indoor unit Do not wipe the plastic casing using very hot water 2 Some metal edges and the fins are sharp and may cause injury if handled imprope
96. ow airflow the fan sound may not change even if the QUIET button is pressed HIGH POWER mode can be used to increase the output of the indoor unit for all operation modes Press the HIGH POWER button while unit is operating mark appears in the display To cancel press HIGH POWER button again e When the HIGH POWER button is pressed the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High e QUIET Mode and HIGH POWER Mode cannot be used at the same time Pressing the MODE selector button cancels HIGH POWER mode Depending on the operating conditions the fan speed may be increased by a small amount only MODE FAN SPEED NIGHT SETBACK C 2 FLAP HIGH POWER DRY Operation How it works Cooling Operation Power failure during operation Clicking Sound Clicking sound is heard from the air conditioner Remote Controller 16 SPECIAL REMARKS Once the room temperature reaches the level that was set the unit s operation frequency is changed automatically During DRY operation the fan speed automatically runs at lower speed for providing a comfortable breeze DRY operation is not possible if the indoor temperature is 59 F or less Sometimes the indoor unit may not get to the set fan speed such as LOW and QUIET under cool operation at very low outdoor temperatu
97. press the ON OFF operation button again The 1 Hour Timer function is now cancelled and the unit operates normally f while the 1 Hour Timer function is operating the 1HR TIMER button is pressed once to cancel the function and then again the unit continues to operate for one hour from that point in time and then stops e 15 not possible to use the OFF Timer and 1 Hour OFF Timer together Whichever function is set last takes precedence If the 1 HR TIMER button is pressed while the TIMER OFF function operates the OFF Timer is cancelled and the unit will stop operating one hour later 2 Operation together with the The 1 Hour OFF Timer setting is given priority over the DAILY ON OFF REPEAT DAILY ON OFF REPEAT Timer setting TIPS FOR ENERGY SAVING Avoid not block neither the air intake nor the air outlet It may cause less performance and may leads to malfunctions Do not let direct sunlight into the room Use sunshades blinds or curtains If the walls and ceiling of the room are warmed by the sun it will take longer to cool the room Do Always try to keep the air filter clean Refer to CARE AND CLEANING A clogged filter will impair the performance of the unit e To prevent conditioned air from escaping keep windows doors and any other openings closed ADJUSTING THE AIRFLOW DIRECTION 1 Horizontal The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or righ
98. quency until it is turned off models only Freeze Prevention Control during the Low Ambient Cooling Mode outside air temperature 59 F 15 C or lower is as follows The compressor stops when the temperature of indoor heat exchanger becomes less than 36 F 2 C The compressor restarts when the temperature of indoor heat exchanger becomes 46 F 8 C or higher 34 8 TROUBLESHOOTING BEFORE CALLING FOR SERVICE 8 1 Precautions before Performing Inspection or Repair e After checking the self diagnostics monitor turn the power OFF before starting inspection or repair e High capacity electrolytic capacitors are used inside the outdoor unit controller inverter They retain an electrical charge charging voltage DC 310V even after the power is turned OFF and some time is required for the charge to dissipate Be careful not to touch any electrified parts before the controller LED red turns OFF If the outdoor controller is normal approximately 30 seconds will be required for the charge to dissipate However allow at least 5 minutes for the charge to dissipate if there is thought to be any trouble with the outdoor controller 8 2 Method of Self Diagnostics Follow the procedure below to perform detailed trouble diagnostics 1 If the operation lamp blinks every 0 5 seconds immediately when the power is turned ON there is an external ROM OTP data failure on the indoor circuit board or a
99. rce Single phase 208 230 V 60 Hz Colina Capac 5 50 2 90 5 50 7 50 2 90 7 50 9 00 2 90 9 00 BTU h 18 800 9 800 18 800 25 400 9 800 25 400 30 600 9 800 30 600 1 BTU h 1 Operation Cooling Operation H dB A Sound Heating Operation Hi dB A 29 1 8 35 7 16 12 19 32 29 1 8 35 7 16 12 19 32 35 1 32 35 7 16 12 19 32 740 900 320 740 900 320 890 900 320 Net Weight Ibs kg 138 9 63 0 138 9 63 0 174 2 79 0 25 APPENDIX C INSTALLATION INSTRUCTIONS CS MKS7NKU CS MKS9NKU CS MKS12NKU CS MKS18NKU CS MKS24NKU 852 6 4190 580 00 0 INSTALLATION INSTRUCTIONS Split System Air Conditioner This air conditioner uses the refrigerant R410A External diameter of service port R410A 5 16 Model Combinations Combine indoor and outdoor units only as listed below Model No Indoor Unit Outdoor Unit CS MKS7NKU CU 3KS19NBU CS MKS9NKU CU 4KS24NBU CS MKS12NKU CU 4KS31NBU CS MKS18NKU CS MKS24NKU Power Source 60 Hz single phase 230 208 VAC 85264190580000 2011 Panasonic Contents Page IMPORTANT Please Read Before Starting 2 1 GENERAL 4 1 1 Tools Required for Installation not supplied 1 2 Accessories Supplied with Unit 1 3 Optional Copper Tubing Kit 1 4 Type of Copper Tu
100. res due to the Indoor unit being protected from ice or frost when combined with the outdoor unit for Low Ambient Cooling models In the event of power failure the unit will stop When the power is resumed the unit will restart automatically within 15 minutes by the remote controller In cooling operation any plastic parts may shrink due to a sudden temperature change In this event a clicking sound may occur This is normal and the sound will soon disappear The remote controller sends the setting condition to the air conditioner regularly at five minute intervals SETTING THE TIMER MODE C 2 FAN SPEED NIGHT SETBACK FLAP HIGH POWER NOTE In the descriptions below the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote controller e Temperature F Time AM PM 1 How to set the present Example To set to 10 30 pm time x Operation dan Press the CLOCK button once if The time indication alone flashes the time indicator is not flashing Press the Advance Return The time can be set in 1 minute button until PM 10 30 is increments Holding down the button displayed advances the time rapidly in 10 minute increments Press the CLOCK button again This completes the setting of the current time 2 How to set the OFF time Example To stop the air conditioner at 11 00 am K
101. rille Cleaning Use a vacuum cleaner to remove light dust If there is sticky dust on the filter wash the filter in lukewarm soapy water rinse it in clean water and dry it How to replace the filter 1 With the FRONT mark of the filter at the front align the two indentions near the mark with the hooks at the rear of the air intake grille and then mount the filter 2 Allow the edge of the air intake grille to slide into the top of the Groove indoor unit and then insert it Pin all the way inside Air intake grille 3 To attach the air intake grille to the indoor unit press its bottom right and left corners as well as its bottom center into place NOTE Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit CARE AND CLEANING CONTINUED Cleaning the main unit and Wipe clean using a soft dry cloth Remote Controller remove stubborn dirt moisten a cloth in warm water no hotter than 104 F wring thoroughly and then wipe he air intake grille can be removed in order to wash it with water Removing and remounting the Refer to How to remove the filter and How to replace the filter on page 22 air intake grille When using a footstool or the like be careful not to let it tip over CAUTION Washing the grille with water Clean the grille gently usi
102. rly be especially careful when you clean these parts 3 The internal coil and other components of the outdoor unit must be cleaned every year Consult your dealer or service center 21 Filter How to remove the filter CARE AND CLEANING CONTINUED The filter behind the air intake grille should be checked and cleaned at least once every two weeks 1 Grasp both ends of the air Air intake grille intake grille and remove it by opening towards the front and pulling towards you Remove the filter attached to the rear of the air intake grille Cleaning Use a vacuum cleaner to remove light dust If there is sticky dust on the filter How to replace the filter 1 With the FRONT mark of the wash the filter in lukewarm soapy water rinse it in clean water and dry it filter at the front align the two indentions near the mark with the hooks at the rear of the air intake grille and then mount the filter Allow the edge of the air intake grille to slide into the top of the Groove indoor unit and then insert it all the way inside Pin Air intake grille AA Press in the bottom right and left corners of the air intake grille to attach the indoor unit NOTE Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit CARE AND CLEANING CONTINUED Cleaning t
103. rrently in voltage at both ends is measured approximately 12 to 15V DC must TEST run mode check the 4 indicator be output and the multimeter pointer must bounce once every 8 lamps on the unit If all 4 are blinking seconds the current mode is TEST run Or instead of measuring the voltage you can insert an LED jig and check that the LED flickers once every 8 seconds f there are no problems with the above then check the outdoor unit For the Test run procedure refer to 4 How to Test Run the Air Conditioner on Appendix B 2 re the outdoor unit nol the rated voltage between outdoor e The control panel LED red must illuminate unit terminals L1 and L2 Short circuit the outdoor unit COM terminal The compressor and fan motor must all turn on to the T RUN terminal f there are no problems with the above then check the indoor unit Using the TEST T RUN terminals TEST T RUN terminals T RUN Test run compressor and fan motor turn ON TEST MV Compresses time to 1 60th accelerates operation by 60 times faster than normal 38 3 How to Identify a Serial Communication Error If the lamps on the main body show the following conditions after the completion of self diagnosis a communication error between the indoor unit and outdoor unit might be considered In such a case identify the breakdown section by using the following procedure Refer to Method of Self Diagnosis for the self di
104. se cases the temperature around the remote controller may differ from the temperature detected at the air conditioner s position USING THE REMOTE CONTROLLER How to Install Batteries TIMER c 1 Slide the cover in the direction indicated by the arrow es and remove it C CANCEL SENSOR 12 4 24 ADR Oaa Install two AAA alkaline batteries Make sure the batteries point in the direction marked in the battery compartment Use a thin object such as the tip of a pen to press the ACL button ACL button The batteries last about six months depending on how much you use the remote controller Replace the batteries when the remote controller s display fails to light or when the remote controller cannot be used to change the air conditioner s settings Use two fresh leak proof type AAA alkaline batteries In replacing batteries follow the instructions as mentioned in the subsection How to Install Batteries If you do not use the remote controller more than 1 month take out the batteries Dispose of the used batteries at the designated location in compliance with the applicable local ordinances Information for Users on Collection and Disposal of Old Equipment and used Batteries Information on Disposal in other Note for the battery symbol bottom two Countries outside the European Union symbol examples These symbols are only valid in the This symbol might be used in combination
105. sing the ON OFF operation button of the remote controller Fig 59a This starts the fan producing uncooled forced air with the 3 indicator lamps OPERATION lamp TIMER lamp and QUIET lamp on the main unit blinking Fig 59c After 3 minutes the system shifts into cooling opera tion and cool air will start to be felt Cooling mode test run is unaffected by the room temperature 3 Press the ON OFF operation button of the remote con troller again to stop the test run Fig 59a 4 Finally press the ACL Reset button of the remote con troller to release it from Test Run mode to return to nor mal mode Fig 59a se and oP 1 will disappear from the remote con troller clock display area Troubleshooting In the event that the green OPERATION lamp is blinking upon powering up the system an error condition exists In this case refer to the self diagnostics procedure on the inside of the front cover IMPORTANT g or j AIR CONDITIONER ON OFF TIMER button ES MODE FANSPEED NIGHTSETBACK FLAP HIGH POWER GS TIMER CANCEL CLOCK ACL Reset button After the test run is completed be sure to press the OPERATION lamp TIMER lamp QUIET lamp OPERATION TIMER QUIET Ii 7 EE EA ACL Reset button to return to normal mode The 222 air conditioner will not oper
106. supplied 1 Standard screwdriver 2 Phillips head screwdriver 3 Knife or wire stripper 4 Tape measure 5 Carpenter s level 1 2 Accessories Supplied with Unit 1 Parts Figure 6 Sabre saw key hole saw 7 Hacksaw 8 Core bits 9 Hammer 10 Drill 11 Tube cutter 12 Tube flaring tool 13 Torque wrench 14 Adjustable wrench 15 Reamer for deburring AN Hemote Tapping screw Phillips controller 5 32 x 5 8 4x16 mm ro al AAA alkaline battery 1 3 Optional Copper Tubing Kit Copper tubing for connecting the outdoor unit to the indoor unit is available in kits which contain the narrow and wide tubing fittings and insulation Consult your nearest sales outlet or air conditioning workshop 1 4 Type of Copper Tube and Insulation Material If you wish to purchase these materials separately from a local source you will need 1 Deoxidized annealed copper tube for refrigerant tub ing as detailed in Table 2 Cut each tube to the appropriate lengths 1 to 1 4 30 cm to 40 cm to dampen vibration between units Table 2 Packed in the indoor unit Remote control f Drain hose 2 Foamed polyethylene insulation for the specified copper tubes as required to precise length of tubing Wall thickness of the insulation should be not less than 5 16 8 mm 3 Useinsulated copper wire for field wiring Wire size varies with the total length of wiring Refer to
107. t When the humidity is high the vertical vanes should be in the front position during the cooling or dehumidifying operation If the vertical vanes are positioned all of the way to the right or left condensation may begin to form around the air vent and drip down 2 Vertical The vertical airflow can be adjusted by moving the flap with the remote controller Do not move the flap with your hands Confirm that the remote controller has been turned on Use the FLAP button to set either the sweep function or one of the six airflow direction settings MODE FAN SPEED NIGHT SETBACK 5 SWEEP 47 C 2 FLAP HIGH POWER 2 D A Sweep function B Setting the airflow manually P The flap starts moving and down to Referring to the above illustration use the 77 deliver air over the sweep range FLAP button to set the airflow direction within the range used during the cooling or C Auto flap function dehumidifying operation E The flap is set to the recommended position NOTE e The flap automatically closes when the unit is off e Use the FLAP button on the remote controller to adjust the position of the flap If you move the flap by hand the flap position according to the remote controller and the actual flap position may no longer match If this should happen shut off the unit wait for the flap to close and then turn on the unit again the flap position will now be n
108. t Voltage Rating 208V Single Phase 60Hz Performance Capacity BTU h 7 500 kW 2 20 Air Circulation Hi Me Lo ft min m3 h 241 410 224 381 212 360 Moisture Removal High Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 33 30 27 23 Qt 2 Quiet mode Refrigerant Narrow tube inch mm Tube Diameter Wide tube inch Dimensions amp Weight Indoor Unit Unit Dimensions 11 7 32 285 Package Dimensions Height Weight Net Shipping Ib Shipping Volume cu ft m DATA SUBJECT TO CHANGE WITHOUT NOTICE Indoor Unit CS MKS9NKU lt 230V gt Voltage Rating 230V Single Phase 60Hz Performance Capacity BTU h 9 000 kW 2 65 Air Circulation Hi Me Lo ft min m3 h 259 440 241 410 212 360 Moisture Removal High Pintsih Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 34 31 28 23 Qt Quiet mode Refrigerant Narrow tube inch mm Tube Diameter Wide tube inch mm Dimensions amp Weight Indoor Unit Unit Dimensions 11 7 32 285 Package Dimensions Height Weight Net Shipping Ib Shipping Volume cu ft m DATA SUBJECT TO CHANGE WITHOUT NOTICE Indoor Unit CS MKS9NKU lt 208V gt Voltage Rating 208V Single Phase 60Hz Performance Capacity BTU h 9 000 kW 2 65 Air Circulation Hi Me Lo ft min m3 h 259 440 241 410 212 360 Moisture
109. t tubing and drain hose through the hole in the wall Adjust the indoor unit so itis securely seated on the rear panel Fig 36 3 Carefully bend the tubing if necessary to run along the wall in the direction of the outdoor unit and then tape as far as the fittings See Caution on page 19 in the outdoor unit installation manual The drain hose should come straight down the wall to a point where water runoff won t stain the wall 4 Connect the refrigerant tubing to the outdoor unit After performing a leak test on the connecting part insulate it with the tubing insulation Fig 37a Also refer to Section 3 5 Tubing connections in the outdoor unit installation manual b Assemble the refrigerant tubing drain hose and conduit including inter unit wiring as shown in Fig 37b Insulation Fig 37a Conduit Inter unit wiring Fig 37b Drain hose Aq Fig 33 Padding material x Fig 34 Rear panel Cover Refrigerant tubing Inter unit wiring Drain hose Fig 35 E Left side tubing 1 Lead the tubing and drain hose through the wall allowing sufficient length for connection Then bend the tubing using a tube bender to make the attach ment Fig 38 Switch the drain hose and drain cap Switching drain hose and drain cap a Locate the drain hose and the drain cap Fig 39 b Remove the screw fastening the drain hose on the right side and pull out
110. tains an internal control PCB Therefore it is not possible to measure the coil resistance and the following procedure should be used to check the motor To perform diagnosis operate the unit in cooling mode with indoor fan speed High Next make sure that the indoor unit receive the signals from the remote controller when the ON OFF operation button is pressed Important A Turn OFF the power before connecting or disconnecting the motor connectors B When performing voltage measurement at the indoor controller connector for 3 in the table below the DC motor will trip and voltage output will stop approximately 1 minute after operation is started For this reason to measure the voltage again turn OFF the unit once using the remote controller and then start the air conditioner again Trouble symptom 1 Trouble symptom 2 The fan does not stop when the unit stops Indoor unit controller trouble The fan motor does not rotate when the unit is operating Diagnostic procedure Disconnect the motor connectors and measure the voltage at the DC motor connectors on the indoor unit controller 3 locations Measurement location 1 Vm Gnd Between pin 1 and pin 3 DC 230 V or more 2 Vcc Gnd Between pin 4 and pin 3 DC 14 V or more 3 Vs Gnd Between pin 5 and pin 3 Fluctuation between DC 1 7 to 6 1 V Diagnostic results All of the above measured values are normal Fan motor trouble Replace the motor Any o
111. te controller there e This appliance has a built in 5 minute time delay circuit to ensure reliable operation When the operation button is pressed the compressor will start running within three minutes In the event of power failure the unit will stop 2 Adjusting the Fan Speed A Automatic fan speed B Manual fan speed 3 Fan Only Simply set the FAN SPEED selector button to the 9 position This automatically sets the best fan speed for the room temperature If you want to adjust fan speed manually during operation just set the FAN SPEED selector button as desired 9 3 or STEP 3 1 MODE ap FAN SPEED NIGHT SETBACK Ha FLAP HIGH POWER STEP 2 STEP 1 If you want to circulate air without any temperature control follow these steps STEP 1 STEP 2 STEP 3 Press the MODE selector button to switch to the fan mode 96 Press the ON OFF operation button Press the FAN SPEED selector button to select the fan speed of your choice 9 9 or OPERATION WITH THE REMOTE CONTROLLER CONTINUED 4 Night Setback Mode 14 Night Setback Mode is used for saving energy Press the NIGHT SETBACK button while unit is operating The mark appears in the display To release the night setback function press the NIGHT SETBACK button again Pressing the MODE selector button cancels Night Setback mode FLAP HIGH POWER In Cooling and DRY When the nia
112. the wall Fig 12 3 3 Install the Rear Panel on the Wall Be sure to confirm that the wall is strong enough to sus pend the unit oee either Item a or b below depending on the wall type a If Wooden Wall 1 Attach the rear panel to the wall with the 8 screws provided Fig 13a or 13b If you are not able to line up the holes in the rear panel with the beam locations marked on the wall use rawl plugs or toggle bolts to go through the holes on the panel or drill 3 16 5 mm dia holes in the panel over the stud locations and then mount the rear panel 2 Double check with a carpenter s level or tape mea sure that the panel is level This is important to install the unit properly Fig 14 3 Make sure the panel is flush against the wall Any space between the wall and unit will cause noise and vibration b If Block Brick Concrete or Similar Type Wall Make 3 16 4 8 mm dia holes in the wall Insert rawl plugs for appropriate mounting screws Fig 15 3 16 4 8 mm dia hole c Rawl plug Fig 15 Hole should be made at a slight downward slant to the outdoor side Indoor Outdoor side side PVC pipe Locally purchased Cut at angle Fig 11 INSIDE OUTSIDE Wall Plastic cover PVC pipe Locally purchased L slight BEC sss angle Fig 12 CS MKS7NKU CS MKS9NKU CS MKS12NKU Fig 13a CS MKS18NKU CS MKS24NKU O
113. time as the reference and it is activated starting from whichever set time comes first e With the ON OFF combination timer the settings are repeated every day e You can check the timer ON OFF times after you have set them by pressing the ON TIME and OFF TIME setting buttons Press the CANCEL button e When either an ON or OFF timer is to be canceled press the button corresponding to the timer whose program is to be canceled and then press the CANCEL button To cancel a timer program The airflow direction fan speed and temperature setting can be changed after a timer program has been set even when the unit is stopped Even when operation is stopped during an ON timer program the unit will start operating when the set time is reached provided that the program is not canceled e When the ON timer and OFF timer are set to the same time the timer operates as if it is turned off 18 USING THE 1 HOUR OFF TIMER 1 1 Hour OFF Timer This function causes the unit to operate for one hour and then stop regardless of whether the unit is on or off when this button is pressed The indicator in the display indicates that this function is operating Setting procedure Regardless of whether the unit is operating or stopped press the 1 HR TIMER button appears in the display ON OFF O QUIET Cancellation procedure Press the ON OFF operation button to turn the unit off wait for the unit to stop operating and then
114. to be prohibited In or close to this circle a prohibited item is described This symbol indicates the items requiring special attention or instruction In or close to this circle a prohibited item is described e After doing repair work perform a test run to confirm that there are no abnormalities At the same time explain the precautions in use to the user N Warning Before performing an overhaul disconnect the power plug or power cable from the unit Performing the work with the power supplied to the unit may cause an electric shock When repair work or circuit inspection that requires power supply for the air conditioner is to be performed do not touch the charging section Doing so may cause an electric shock For the step up capacitor attached to the electric section perform the repair work after sufficiently discharging it Insufficient capacitor discharge may cause an electric shock Do not perform repair work on the electric sections with wet hands Doing so may cause an electric shock Do not start or stop the air conditioner by means of connecting or disconnecting the power plug Doing so may cause an electric shock or fire When conducting repair work only use components included in the parts list for the corresponding unit and perform the work with the appropriate tools Incorrect or poor repair work may cause an electric shock or fire Never modify the unit Doing so may cause an electric shock or fire Per
115. ves energy by controlling operation to provide a quieter operating sound than normal e Automatic and 3 step Fan Speed Auto High Medium Low CONTENTS Page FEATURE G uuu uuu 2 PRODUCT INFORMATION 2 SAFETY PRECAUTIONS 2 INSTALLATION LOCATION 3 ELECTRICAL REQUIREMENTS 3 SAFETY INSTRUCTIONS 3 NAMES OF 5 USING THE REMOTE CONTROLLER 10 OPERATION WITH THE REMOTE CONTROLLER 12 ul L uu a u 12 2 Adjusting the Fan 13 S lp M RE 13 4 Night Setback Mode 14 5 QUIE T M00686 uu uuu u 15 6 HIGH POWER Mode 15 PRODUCT INFORMATION If you have problems or questions concerning your Air Conditioner you will need the following information Model and serial numbers are on the nameplate on the bottom of the cabinet Model No Serial No Date of purchase Dealer s address Phone number e Air Sweep Control This function moves a flap up and down in the air outlet directing a

Panasonic CS-MKS12NKU Service Manual

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