Panasonic CU-KE18NKU - Manuals

2. SPECIFICATIONS 2-1. Unit Specifications Indoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 2-1-1. Vertical dB-AdB-A Indoor : Hi/Me/LoOutdoor : Hi Air FilterCompressorRefrigerant / Amount charged at shipment Ibs (g) Refrigerant Control 12.6 1,260 ( 2.5 to 12.6 )( 250 to 1,260 ) 11,900...

Indoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 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 Heating: Indoor air temperature 70 °F DB Outdoor air temperature 47 °F...

2-2-2. Outdoor Unit Control PCB Control Circuit Fuse Controls Part No. Microprocessor 125V 25A CB-CU-KE12NK1 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) WHT - BLU : BLU - RED : RED - WHT : 77.577.5 77.5 Micro F VAC External Finish Acrylic baked-on enamel finish FV50S ... 0.68 (320) -- Internal...

2-3. Other Component Specifications Indoor Unit CS-KE12NB41 & CZ-18BT1U CS-KE18NB4UW & CZ-18BT1U Outdoor Unit CU-KE12NK1 CU-KE18NKU 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...

3. DIMENSIONAL DATA Indoor Unit CS-KE12NB41 & CZ-18BT1U CS-KE18NB4UW & CZ-18BT1U 6-5/16 6-11/16 1-3/16 (30) 4-19/32 1-25/32 1-25/32 2-3/32 8-15/32 22-5/8 (575) 11-5/32 (283) 3 6 5 Less than 31/32 Less than 31/32 3-5/8 22-5/8 (575) 12-7/8 Suspension bolt pitch Suspension bolt pitch 21-1/32 (5...

Compressor Accumulator Wide tubeservicevalve Wide tube Narrowtubeservicevalve Narrow tube Heat e xchanger Heat e xchanger Muffler Capillary tube for split flow Cooling cycle(Defrosting cycle) Heating cycle Indoor unit Outdoor unit Electric expansion valve Strainer Strainer M Muffler O.D.3/8"(9.5...

Hi Fan Lo Fan Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 115V) (1) Low pressure performance chart (2) Operating current performance chart (3) Indoor discharge air performance chart Check each performance value in test-run mode. Electrical performance values represent a co...

5-4. Heating Capacity Indoor Unit : CS-KE12NB41 & CZ-18BT1U Outdoor Unit : CU-KE12NK1 Power Supply : 115V Single Phase 60Hz < Heating Capacity > TH : Total Heating Capacity (BTU/h) 1. Rating conditions (#) : Indoor Unit Entering Air Temp. 70 °F (21.1 °C) DB : Outdoor Ambient Temp. 47 °F (8...

6. ELECTRICAL DATA 6-1. Electrical Characteristics Indoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor + Compressor Performance at 115V Single-phase 60Hz Rating conditions Running amp. A 0.21 Power input W 18 12.39 1,242 Heating ...

ACL(Reset)button 1HR.TIMERbutton ON/OFFoperationbutton HIGH POWERbutton Test run mode Self-diagnostic mode Address setting mode Fig. 1 Fig. 2 Fig. 3 Tab ACL button 7. MAINTENANCE 7-1. Address Setting of the Remote Controller The address can be set in order to prevent interference between remote cont...

7-3. Disassembly Procedure 7-3-1. Remove the air intake grill. (1) Slide the 2 latches each to the corresponding arrow direction. (Fig. 1 and Fig. 2) Open downward the air intake grill located on the latch side. (2) Undo the air intake grill drop preventive hook. (Fig. 3) Undo the 2 hinges for the g...

NOTE 7-3-3. Remove the ceiling panel. (1) Open the clamp (4 locations) and remove the 2 lead wires from the clamps. (Fig. 6) (2) Remove the 4 screws fixing the corner cover (at 3 locations) and indicator cover (at 1 location). (Fig. 6) (3) Press the center 1 of the cover and remove the cover with th...

This function prevents the circuit breaker or fuse from operating to open the circuit. This function works when electrical current has increased due to an increase in the cooling / heating load, or to a decrease in the power supply voltage. In these cases, operation frequency is reduced or operation...

< 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 before starting inspection or repair. High-capacity electrolytic ca...

Since the indications cover various units, the corresponding parts listed below may not be present in some models. (1) Self-diagnostics Lamps (1) DRAIN PUMP FAILURE (2) FS FAILURE (3) CHOKED DRAIN HOSE 8512-5261-99100-1 REMOTE CONTROL receiver OPERATION lamp TIMER lamp OPERATION button HIGH POWER la...

(2) If the self-diagnostics function fails to operate Check the indoor unit. Is the fuse blown? Replace the controller. Replace the circuit board or the fuse. No indicators illuminate and the indoor fan does not rotate.Check the power voltage. • • Normal Blown 9-3. Checking the Indoor and Outdoor Un...

(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 ELECTR...

Fuse PCB Ass'y Fig. 5 Fig. 6 Fuse 10-2. Checking Continuity of Fuse on PCB Ass'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. 61

11. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT 11-1. Characteristics of New Refrigerant R410A 11-1-1. What is New Refrigerant R410A? R410A is a new refrigerant that contains two types of pseudo-non-azeotropic refrigerant mixture. Its refrigeration capacity and energy efficiency are a...

Tubing precautions 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) i...

11-5. In Case of Compressor Malfunction CAUTION Should the compressor malfunction, be sure to make the switch to a replacement compressor as quickly as possible. Use only the tools indicated exclusively for R410A. See "11-3. Tools Specifically for R410A." 11-5-1. Procedure for Replacing Comp...

Valve Single valve Charge liquid refrigerant with cylinder in up-side-down position. Single valve (with siphon 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 t...

Length of tubing Evacuation time Less than 33 ft. (10 m) More than 10 minutes More than 33 ft. (10 m) More than 15 minutes 11-6. In Case Refrigerant is Leaking CAUTION Never attempt to charge additional refrigerant when refrigerant has been leaking from the unit. Follow the procedure described below...

11-7. Charging Additional Refrigerant 11-7-1. When Tubes 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 state only. 11-8. Retro-Fitting Existing Systems 11-8-1. ...

Split System Air Conditioner Model No. Panasonic Corporation 1006 Kadoma, Kadoma City, Osaka, Japan 85264181213002 Indoor Units CS-KE12NB41CS-KE18NB4UW Outdoor Units(For Single use) CU-KE12NK1CU-KE18NKU (For Multiple use) CU-3KE19NBUCU-4KE24NBUCU-4KE31NBU Operating Instructions Before operating the ...

2 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. • Microprocessor Controlled Operation The interior compartment of the remote contr...

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 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...

5 REMOTE CONTROLLER (DISPLAY) (1) Operation mode AUTO ..................................... HEAT ...................................... MILD DRY .............................. COOL ..................................... FAN ........................................ (2) Fan speed Automatic operation .....

6 REMOTE CONTROLLER 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. Display Information on the operating conditions is displayed while the remote controller is switched on. If the...

8 USING THE REMOTE CONTROLLER HOW TO INSTALL BATTERIES 1. Slide the cover in the direction indicated by the arrow and remove it. 2. Install two AAA alkaline batteries. Make sure the batteries point in the direction marked in the battery compartment. 3. Use a thin object such as the tip of a pen to p...

9 OPERATION WITH THE REMOTE CONTROLLER 1. Automatic Operation When the remote controller’s S/M switch is at the “S” (Single) position This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting....

10 3. Adjusting the Fan Speed A. Automatic fan speed Simply set the FAN SPEED selector button to the position.This automatically sets the best fan speed for the room temperature. B. Manual fan speed If you want to adjust fan speed manually during operation, just set the FAN SPEED selector button as ...

11 • 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”. • HIGH POWER Mode cannot be used when the operation mode is in Automatic Operation. • When set to High fan speed during heating...

13 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 whe...

14 OPERATION WITHOUT THE REMOTE CONTROLLER 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 type of operation conducted is indicated by the changing color of the OPERATION lamp. Pr...

15 Air filter The air filter collects dust and other particles from the air and should be cleaned once every 6 months.If the filter gets blocked, the efficiency of the air conditioner drops greatly. The frequency with which the filter should be cleaned depends on the environment in which the unit is...

17 SPECIFICATIONS Model No. • For Single use • For Single use Outdoor Unit Indoor Unit CS-KE12NB41 CU-KE12NK1 11,900 [ 3,000 ~ 11,900 ] 47 Single-phase, 115 V, 60 Hz 3.50 [ 0.90 ~ 3.50 ] 4.00 [ 0.90 ~ 4.00 ] 13,600 [ 3,000 ~ 13,600 ] - 49 - 21-9/16×28-11/32×10-7/16 (548×720×265) - 34/32/31 - 35/34/3...

This air conditioner uses the refrigerant R410A. External diameter of service port R410A: 5/16" Split System Air Conditioner 85264190577002 2011 INSTALLATION INSTRUCTIONS NOTE CV6233187839 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: direc...

7 Hole-in-anchor Concrete Insert Suspension bolt (M10 or 3/8") Hole-in-plug (locally purchased) Fig. 6-1 23-5/8"(600mm) 21-1/32"(534mm) Ceiling opening dimensions Suspension bolt pitch 23-5/8"(600 mm ) 21-1/32"(534 mm ) Ceiling opening dimensions Suspension bolt pitch Drain tubec...

8 In cases where it is necessary to raise the height of thedrain piping, the drain piping can be raised to a maximumheight of 2.78 ft. (850 mm) above the bottom surface ofthe ceiling. Under no conditions attempt to raise it higherthan 2.78 ft. (850 mm) above the bottom surface of theceiling. Doing s...

11 Fig. 6-23 Fig. 6-24 Fig. 6-25 fit into the holes in the ceiling panel. Place the corner cover so that the 3 tabs Then fasten it in place with the supplied screws. Pin Hole for ceiling panel hook the grille from dropping Hook that prevents Can be installed rotated 90 * The grille can be installed ...

3-7. Wiring Instructions General precautions on wiring (1) Before wiring, confirm the rated voltage of the unit as 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 a...

13 Cross-Sectional (A)+(B) (A) Power Supply Wiring Length (ft) (C) Control Fuse or Circuit Area (AWG) (B) Power Line Length (ft) Line Length (ft) Model (#14) (#12) (#14) Breaker Capacity CU-KE12NK1 131 (Max.) 230 (Max.) 65 (Max.) 20A CU-KE18NKU 131 (Max.) 230 (Max.) 100 (Max.) 15A # ... AWG (America...

14 When connecting each power wire to the corresponding terminal, fol-low the instructions “How to connect wiring to the terminal” and fastenthe 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 cutti...

15 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. 11 and 12) (2) Using a screwdriver, remove the terminal screw(s) on the terminal plate. (3) Using a ring connector...

16 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...

17 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. 21) b) To fasten the flare nuts, apply specified torque as: Table 5 5-5. Insulation of Refrigerant Tubing To prevent heat loss ...

Be sure to use a manifold valve forair purging. If it is not available, usea stop valve (field supply) for thispurpose. The “Hi” knob of the mani-fold valve must always be kept closed. Insulated tubes Drain hose Clamp Hi Lo Indoor unit Outdoor unit Manifold valve(Exclusively for R410A) Pressuregauge...

19 (4) With the “Lo” knob of the manifold valve open, run the vacuum pump. The operation time for the vacu-um pump varies with tubing length and the capacityof the pump. The following table shows the amountof time for evacuation: Table 6 Required time for evacuation when 26.4 gal/h (100 liter/h) vac...

20 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 conductthe test run. (1) Set the remote controller in Test Run mode. (Fig. 29) a) Press and hold the HIGH POWER button and the 1HR. TIMER button. b) Then p...

21 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...

22 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...

23 ACL(Reset) button 1HR.TIMERbutton ON/OFF operation button HIGH POWERbutton 8. Address Switch 8-1. Address Setting of the Remote Controller The address can be set in order to prevent interfer-ence between remote controllers when 2 indoor unitsare installed near each other. The address is normallys...

2 FEATURES • Microprocessor Controlled Operation The interior compartment of the remote controller contains several features to facilitate automatic operation, easy logically displayed for easy use. • 24-Hour ON or OFF Timer This timer can be set to automatically turn the unit on or off at any time ...

6 REMOTE CONTROLLER (DISPLAY) (1) Operation mode AUTO .....................................(only for COOL/DRY/HEAT Model) HEAT ......................................(only for COOL/DRY/HEAT Model) MILD DRY .............................. COOL ..................................... FAN ....................

10 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 whe...

Parts supplied with the remote controller See Table 1. Remote controller installation guidelines ‡ Mount the remote controller 3.3 to 4.9 ft. (1 to 1.5meters) off the floor where it can sense the averagetemperature of the room. ‡ Do not mount the remote controller in a placeexposed to direct sunligh...

Fig. 8 Indicator Wire harness Ceilingpanel Terminal cover Clamps 7P IND and 4P RCwiring connector 5P FLAPwiring connector Clamping strap FLAP RC IND 7P 4P 5P FLAPwiringconnector Wire harness Remotecontroller Wire harness Control PCB Indicator 7P IND and 4P RCwiring connector Putty 3 How to wire the ...

4 Fig. 9 Fig. 10 Fig. 11 ON/OFFoperation button 1 HR.TIMERbutton NIGHT SETBACKbutton ACL (Reset)button SENSOR button OPERATION lamp TIMER lamp HIGH POWER lamp REMOTE CONTROL receiver OPERATION button How to Test Run the Air Conditioner After turning on the power of the air conditioner, use theremote...