Panasonic CU-KS24NKUA - Manuals

95 °F DB / 71 °F WB 67 °F DB / 57 °F WB 1 . OPERATING RANGE Maximum Minimum 115 °F DB 67 °F DB Temperature Indoor Air Intake Temp . Outdoor Air Intake Temp . Cooling 95 ° 67 °F DB / 57 °F WB Maximum Minimum 115 °F DB 0 °F DB Temperature Indoor Air Intake Temp . Outdoor Air Intake Temp . Cooling Mode...

2. SPECIFICATIONS 2-1. Un i t Spec i f i cat i ons Indoor Unit CS-KS18NKU Outdoor Unit CU-KS18NKU < 230V > DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are:Cooling: Indoor air temperature 80 °F DB / 67 °F WB Outdoor air temperature 95 °F DB / 75 °F WB Vertical dB-AdB-A Ind...

Indoor Unit CS-KS24NKU Outdoor Unit CU-KS24NKUA < 230V > DATA SUBJECT TO CHANGE WITHOUT NOTICE. Vertical dB-AdB-A Indoor : Hi/Me/Lo/Qt*Outdoor : Hi Air FilterCompressorRefrigerant / Amount charged at shipment Ibs (g) Refrigerant Control 10.8 ( 1.3 to 10.8 ) 24,200 7.1 ( 4,000 to 24,200 )( 1.2 ...

Indoor Unit CS-KS18NKU MP24Z3 Flap Motor Type Stepping Motor Rating Model Coil Resistance Ohm (Ambient Temp. 77 °F (25 °C)) Each Pair of Terminal : 400 +/- 7% DC 12V Aluminum Plate Fin / Copper Tube 2 19.5 3.07 (0.285) Face Area Coil Rows Fins per inch Heat Exchanger Coil ft 2 (m 2 ) DATA SUBJECT TO...

Outdoor Unit CU-KS18NKU 2-2-2 . Outdoor Unit Control PCB Control Circuit Fuse Controls Part No. Microprocessor 250V 25A CB-CU-KS18NKU DATA SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) WHT - BLU : BLU - RED : RED - WHT : 77.577.5 77.5 Micro F VAC External Fini s h Acrylic baked-on enamel finish FV50S...

2-3 . Other Component Specification s Indoor Unit CS-KS18NKU CS-KS24NKU Outdoor Unit CU-KS18NKU CU-KS24NKU CU-KS18NKUA CU-KS24NKUA 0 32 50 68 86 104 122 140 158 176 194 (0) (10) (20) (30) (40) (50) (60) (70) (80) (90) 40 60 80 100 120 140 160 180 200 20 50 1 0 2 3 4 5 6 7 8 9 10 59 68 77 86 95 104 (...

3 . DIMENSIONAL DATA Indoor Unit CS-KS18NKU CS-KS24NKU CS-KS18NKU CS-KS24NKU Unit: inch(mm) (852-0-0010-216-00-0) 22

Compressor Accumulator Wide tubeservicevalve Wide tube Narrowtubeservicevalve Narrow tube Heat exchanger Heat exchanger Muffler Cooling cycle Indoor un i t Outdoor un i t Electric expansion valve M *1 *1 O.D.1/2"(12.7mm) ... O.D.5/8"(15.88mm) ... O.D.1/4"(6.35 mm) H.P. High pressure swit...

5. PERFORMANCE DATA 5-1. Temperature Charts Indoor Unit CS-KS18NKU Outdoor Unit CU-KS18NKU • Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. NOTE Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 230V) (1) L...

Indoor Unit : CS-KS18NKU Outdoor Unit : CU-KS18NKU / CU-KS18NKUA Power Supply : 230V Single Phase 60Hz < Cooling Capacity > 5-2. Cool i ng Capac i ty TC : Total Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h) 1. Rating conditions (#) : Outdoor Ambient Temp. 95 °F (35 °C) DB 2. 3....

Horizontal distance (ft.) Axis air velocity (ft./sec.) Vertical distance (ft.) Room air temp. : 80°F (26.7°C) Fan speed : High Cooling : Flap angle 0 , : Axis air velocity 0 : Flap angle 30 , : Axis air velocity 30 5-4. Air Throw Distance Charts Indoor Unit CS-KS18NKU 0 5 10 15 0 5 10 15 20 25 30 34

Indoor Unit CS-KS24NKU Outdoor Unit CU-KS24NKU Indoor Unit Outdoor Unit Fan Motor Fan Motor + Compressor Performance at 230V Single-phase 60Hz Rating conditions Running amp. A 0.5 Power input W A W A W A W 55 10.3 2,405 Rating conditions: Cooling 10.8 2,460 Indoor Unit Outdoor Unit Fan Motor Fan Mot...

8FA2-5251-11000-2 6-2. Electric Wiring Diagrams Indoor Unit CS-KS18NKU CS-KS24NKU WARNING To avoid electrical shock hazard, be sure todisconnect power before checking, servicingand/or cleaning any electrical parts. CONTROLLER IND LAMP ASSY 12 45 12 4 3 3 5 123 10 123 45 45 67 67 8 8 10 123 10 123 45...

1HR.TIMERbutton ON/OFFoperationbutton ACL(Reset)button QUIETbutton 7 . MAINTENANCE 7-1 . Addre ss Setting of the Remote Control Unit The address can be set in order to prevent interference between remote controllers when two Sanyo indoor units are installed near each other. The address is normally s...

One of the two types of connectors illustrated at left is used. Their basic structure is the same for each. How to Di s connect Hold the resin connector cover, and pull the connector off. You cannot disconnect the connector by pulling the wire since it is locked inside. Always hold the cover to disc...

HIGH POWER NIGHT SETBACK Lamp colors Timer backup 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.) HIGH POWER operati...

1HR.TIMERbutton ON/OFFoperationbutton ACL(Reset)button QUIETbutton < Clock display > Test run mode Self-diagnostics mode 9. TROUBLESHOOTING (BEFORE CALLING FOR SERVICE) 9-1. Precautions before Performing Inspection or Repair NOTE After checking the self-diagnostics monitor, turn the power OFF ...

9-3 . Checking the Indoor and Outdoor Unit s (1) Checking the indoor unit (2) Checking the outdoor unit U s ing the TEST/T-RUN terminal s Control No . Check item s (unit operation) T-RUN : Test run (compressor and fan motor turn ON). TEST/MV : Compresses time to 1/60th (accelerates operation by 60 t...

(3) Serial Communication Error Identification Procedure Refer to "Method of Self-Diagnostics" for the self-diagnostics procedure. (3-1) Condition: E01 < Before the Operation > If the lamps on the main body show the following conditions after the completion of self-diagnostics, a commun...

[Trouble symptom 3] 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.) [Trouble symptom 4] Fan motor rotation speed does no...

9-4-2. Outdoor Fan Motor This outdoor DC fan motor contains 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. Perform the trouble diagnosis by Test Run mode described on Installation Instructions. [Tr...

9-5. 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 install...

Insulation tester Probe Clip Ground wire Terminal plate Coppertube ormetallic part Clip Insulation tester Probe Fig . 1 Fig . 2 Fig . 3 Fig . 4 Coppertube ormetallic part Clip Insulation tester Probe Clip Insulation tester Probe Metallic part From fan motor,compressor and other parts 10 . CHECKING E...

Fuse PCB Ass'y Fig . 5 Fig . 6 Fuse 10-2 . Checking Continuity of Fu s e on PCB A ss 'y Remove the PCB Ass'y from the electrical component box. Then pull out the fuse from the PCB Ass'y. (Fig. 5) Check for continuity using a multimeter as shown in Fig. 6. 58

11 . REFRIGERANT R410A : SPECIAL PRECAUTIONS WHEN SERVICING UNIT 11-1 . Characteri s tic s of New Refrigerant R410A 11-1-1 . What i s New Refrigerant R410A? R410A i s a new refrigerant that contain s two type s of p s eudo-non-azeotropic refrigerant mixture . It s refrigeration capacity and energy e...

Tubing precaution s Refrigerant R410A is more easily affected by dust or moisture compared with R22, thus be sure to temporarily cover the ends of the tubing with caps or tape prior to installation. Never use 0.0276" (0.7 mm)-thick copper tubing or tubing which is less than 0.0315" (0.8 mm) ...

11-5 . In Ca s e of Compre ss or Malfunction CAUTION Should the compre ss or malfunction, be s ure to make the s witch to a replacement compre ss or a s quickly a s po ss ible . U s e only the tool s indicated exclu s ively for R410A . See "11-3 . Tool s Specifically for R410A . " 11-5-1 . P...

Valve Single valve Charge liquid refrigerant with cylinder in up-side-down position. Single valve (with s iphon tube) Charge with cylinder in normal position. Liquid Valve Liquid Charging cylinder Open Refrigerant cylinder Liquid NO! CAUTION Never charge a large amount of liquid refrigerant at once ...

Length of tubing Evacuation time Le ss than 33 ft . (10 m) More than 10 minutes More than 33 ft . (10 m) More than 15 minutes 11-6 . In Ca s e Refrigerant i s Leaking CAUTION Never attempt to charge additional refrigerant when refrigerant ha s been leaking from the unit . Follow the procedure de s c...

11-7 . Charging Additional Refrigerant 11-7-1 . When Tube s are Extended Observe the proper amount of refrigerant as stated in this service manual or the installation manual that came with the indoor unit. Charge additional refrigerant in liquid s tate only . 11-8 . Retro-Fitting Exi s ting Sy s tem...

This air conditioner uses the refrigerant R410A. Split System Air Conditioner Model No. Panasonic Corporation 1006 Kadoma, Kadoma City, Osaka, Japan 85264181210001 Indoor Units CS-KS18NKUCS-KS24NKU Outdoor Units CU-KS18NKUCU-KS18NKUACU-KS24NKUCU-KS24NKUA Operating Instructions Before operating the u...

2 FEATURES This air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functionsare provided below; refer to these descriptions when using the air conditioner. • Microprocessor Controlled Operation The interior compartment of the remote contro...

3 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 sam...

4 • 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 ...

5 NAMES OF PARTS 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 c...

6 UNIT DISPLAY AND OPERATION BUTTON 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 mod...

8 REMOTE CONTROLLER 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 sen...

10 REMOTE CONTROLLER (CONTINUED) USING THE REMOTE CONTROLLER Temperature Display Selector button This switches the temperature display between °C and °F. Time Display Selector button This switches the time display between 24-hour time and 12-hour time. ACL button (ALL CLEAR) Puts the remote controll...

12 OPERATION WITH THE REMOTE CONTROLLER 1. Operation 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. STEP 1 Press the MODE selector button and select the desired mode. For dehumidifying operation o For c...

13 OPERATION WITH THE REMOTE CONTROLLER (CONTINUED) • 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. • This applian...

14 OPERATION WITH THE REMOTE CONTROLLER (CONTINUED) 4. Night Setback Mode Night Setback Mode is used for saving energy. Press the NIGHT SETBACK button while unit is operating. (except FAN mode)The mark appears in the display. To release the night setback function, press the NIGHT SETBACK button agai...

16 SPECIAL REMARKS How it works? • 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...

17 SETTING THE TIMER 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.• Temperature: °F • Time: AM, PM 1. How to set the present time (Example) To set to 10:30 pm. 2. How to set the ...

19 USING THE 1-HOUR OFF TIMER TIPS FOR ENERGY SAVING 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 proce...

20 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 vane...

23 CARE AND CLEANING (CONTINUED) WIRED REMOTE CONTROLLER Cleaning the main unit and Remote Controller • Wipe clean using a soft, dry cloth. • To remove stubborn dirt, moisten a cloth in warm water no hotter than 104 °F, wring thoroughly, and then wipe. • The air intake grille can be removed in order...

24 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 notwork properly, contact your dealer or service center. OPERATING RANGE The air conditioner is operable within the temperature...

25 SPECIFICATIONS Model No. Heating Capacity OperationSound Unit Di m ensions (H×W×D) (Indoor unit : Include panel) Net Weight Power Source Cooling Capacity kW BTU/h kW BTU/h inch( mm ) lbs.(kg) Cooling Operation Outdoor (Hi) Indoor(H/M/L) Outdoor (Hi) Indoor(H/M/L) Heating Operation dB(A) dB(A) Mod...

This air conditioner uses the refrigerant R410A. External diameter of service port R410A: 5/16" Split System Air Conditioner 85264190576000 2011 INSTALLATION INSTRUCTIONS NOTE CV6233187204 Contents Page IMPORTANT!Please Read Before Starting .................................. 2 1. GENERAL ..........

2 IMPORTANT! Please Read Before Starting This air conditioning system meets strict safety and operatingstandards. As the installer or service person, it is an importantpart of your job to install or service the system so it operatessafely and efficiently. For safe installation and trouble-free opera...

3 ‡ 8VHWKHIODUHPHWKRGIRUFRQQHFWLQJWXELQJ ‡ $SSO\UHIULJHUDQWOXEULFDQWWRWKHPDWFKLQJVXUIDFHVRI the flare and union tubes before connecting them,then tighten the nut with a torque wrench for a leak-free connection. ‡ &KHFNFDUHIXOO\IRUOHDNVEHIRUHVWDUWLQJWKHWHVWUXQ ‡ 'RQRWOHDNUHIULJHUDQWZKLOHSLSLQJZRU...

5 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 AVOID: dire...

7 2-3. Baffle Plate for the Outdoor Unit (CU-KSxxNKUA models only) It is recommended to use baffle plates for models CU-KS18NKUA and CU-KS24NKUA. The baffle platesare not normally required for the other models. When the outdoor unit is installed in a position exposedto strong wind (such as seasonal ...

8 (1) Recommended dimensions of the baffle plates D F E C J H L I B K Q R A G O (3- 6.5 mm) 3- 1/4" (2- 6 mm) 2- 15/64" A B H C E F K I J G G D (4- 6.5 mm) 4- 1/4" For Air Intake For Air Discharge Material to be used: Metal plate with corrosion protection treatmentPlate thickness: 0.0394...

10 Set screw only for transportation Fig. 6 Rear panel marks Fig. 7 Lefttubing Right tubing Downward tubing Right-reartubing(recommended) Left-reartubing Fig. 8 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)...

11 Indoorside Outdoorside Hole should be made at a slight downward slant to theoutdoor side. N OT E Fig. 10 Plastic cover INSIDE OUTSIDE Wall Slightangle PVC pipe (Locally purchased) Fig. 12 PVC pipe (Locally purchased) Cut at slight angle Fig. 11 (4) Using a sabre saw, key hole saw or hole-cutting ...

13 3-5. Shape the Indoor Side Tubing (1) Arrangement of tubing by direction a) Right or left tubing Cut out the corner of the right/left frame with ahacksaw or the like. (Figs. 20 and 21) b) Right-rear or left-rear tubing In this case, the corner of the frame need not becut. (2) To mount the indoor ...

14 (A)+(B) (A) Power Supply Wiring Length (ft) (C) Control Fuse or Circuit AWG (B) Power Line Length (ft) Line Length (ft) Model (#14) (#12) (#14) Breaker Capacity CU-KS18NKU, CU-KS18NKUA 131 (Max.) 230 (Max.) 100 (Max.) 15A CU-KS24NKU 131 (Max.) 230 (Max.) 132 (Max.) 20A CU-KS24NKUA 131 (Max.) 230 ...

16 When connecting each power wire to the correspondingterminal, follow the instructions “How to connect wiringto the terminal” and fasten the wire securely tight withthe 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 ...

18 Hole in wall Bent part Narrow tube Wide tube Rear panel Fig. 38 Drain cap Drain hose Fig. 39 Left-side tubing (1) Lead the tubing and drain hose through the wall, allowing sufficient length for connection. Then bendthe tubing using a tube bender to make the attach-ment. (Fig. 38) (2) Switch the d...

19 To unmount indoor unit Press the 2 marks on the lower part of the indoor unit and unlatch the tabs. Then lift the indoor unit andunmount. (Fig. 42) 3-10. Drain Hose a) The drain hose should be slanted downward to theoutdoors. (Fig. 43) b) Never form a trap in the course of the hose. c) If the dra...

20 4. How to Install the Outdoor Unit First refer to Section 2. Installation Site Selection. 4-1. Wiring Instructions for the Outdoor Unit Regulations on wire size differ from locality to locality. Forfield wiring requirements, please refer to your local elec-trical codes. Make sure that the install...

21 5. Refrigerant Tubing 5-1. Use of the Flaring Method Many of the conventional split system air conditionersemploy the flaring method to connect refrigerant tubeswhich run between indoor and outdoor units. In thismethod, the copper tubes are flared at each end andconnected with flare nuts. 5-2. Fl...

22 5-4. Connecting Tubing between Indoor and Outdoor Units a) Tightly connect the indoor side refrigerant tubing exten-ded from the wall with the outdoor side tubing. (Fig. 52) b) To fasten the flare nuts, apply specified torque as: Table 6 5-5. Insulation of Refrigerant Tubing To prevent heat loss ...

23 6. Air Purging Air and moisture remaining in the refrigerant systemhave undesirable effects as indicated below. Therefore,they must be purged completely. pressure in the system rises operating current rises cooling (or heating) efficiency drops moisture in the air may freeze and block capillary t...

25 How to Test Run the Air Conditioner After turning on the power of the air conditioner, use theremote controller and follow the steps below to conduct thetest 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...

26 Pump Down Pump down means collecting all refrigerant gas in thesystem back into the outdoor unit without losing any ofthe gas. Pump down is used when the unit is to bemoved or before servicing the refrigerant circuit. Pump Down Procedure Be sure to carry out pump down with the unit incooling mode...

27 7. Remote Controller Installation Position The remote controller can be operated from either anon-fixed position or a wall-mounted position. To ensure that the air conditioner operates correctly, donot install the remote controller in the following places: In direct sunlight Behind a curtain or o...

28 8. Address Switch 8-1. Address Setting of the Remote Controller The address can be set in order to prevent interferencebetween remote controllers when 2 indoor units areinstalled near each other. The address is normally set to“A.” To set a different address, it is necessary to changethe address o...