Home

TECHNICAL & SERVICE MANUAL DC INVERTER SPLIT SYSTEM

Contents

1. Control box Pass the wiring connectors through the clamps to fasten them in place as shown in the figure Fig 6 21 3 6 4 How to Attach the Corner Cover and Air Intake Grille A Attaching the corner cover 1 Check that the safety strap from the corner cover is fas tened to the ceiling panel pin as shown in the figure Fig 6 23 2 Use the supplied screws to attach the corner cover to the ceiling panel B Attaching the air intake grille Place the corner cover so that the 3 tabs e To install the air intake grille follow the steps for 3 6 1 fit into the holes in the ceiling panel Before Installing the Ceiling Panel in the reverse order Then fasten N place ER RUE By rotating the air intake grille it is possible to attach the Fig 6 23 grille onto the ceiling panel Hole for ceiling from any of 4 directions panel hook Fig 6 25 i e When attaching the air intake CN B hse grille be careful that the flap any of 4 directions and the indicator wiring do become caught Be sure to attach the safety cord that prevents the air intake grille from dropping off to the Hook that prevents the grille from ceiling panel unit as shown dropping in Fig 6 24 Fig 6 24 Fig 6 25 11 3 6 5 Checking After Installation Check that there are no gaps between
2. 10 Lo Fan Hi Fan C E 7 5 5 5 o de 5 o E S 7 jen o 6 5 77 86 95 104 25 30 35 40 Outdoor inlet air DB temp F C 3 Indoor discharge air performance chart pen 68 2 20 L 5 15 a S pe 50 10 D 5 41 5 5 5 o T 32 0 77 86 95 104 25 30 35 40 Outdoor inlet air DB temp F C NOTE Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value 25 Indoor Unit CS KE18NB4UW amp CZ 18BT1U Outdoor Unit CU KE18NKU B Heating Characteristics RH 85 Indoor fan speed High fan 60Hz 230 1 High pressure performance chart 290 High pressure at wide tube service valvi 15 S 218 1 5 23 32 41 50 59 68 77 5 0 5 10 15 20 25 Outdoor inlet air DB temp F C 2 Operating current performance chart 12 SON Ie 49 11 Tes jo 10 IAS AEO g RI 3 o 9 amp o 8 9 7 6 23 32 41 50 59 68 77 5 0 5 10 15 20 25 Outdoor inlet air DB temp F C 3 Indoor discharge a
3. MAGNETIC COIL 11 2 2 RV 4WAY VALVE COIL 2P CONNECTOR BLK WHT WHT BLK POWER RELAY 5 FERRITE COR E Zk TERMINAL PLATE UNIT TO INDOOR BLK 14 WHT4X6 M HT N L gi Zi POWER SUPPLY HIGH PRESSURE SWITCH 141 BLK 2 2j BLK 2P CONNECTOR WHT 36 8FA2 5251 12200 2 Outdoor Unit CU KE18NKU 2P CONNECTOR RED REACTANCE oo BLK WHT4 WHT cC POWER RELAY Pr 12 z z z 6 os rs e rs 1 ws 12 6 N 5 IN rt 2 BLK U FERRITE CORE PLATE gt ACIN1 BLK Dj E s l 2s Ki a w CONTROLLER ACIN2 WHT Orang reza SI A W RED 4 D RVO RV1 L J MIJE BLK 75 LN 2 o Uels WHTZ GM 7 w ce vas Meel o F v O2 m i Z JTE xx xx a g I mi NL Zj l ai ii xx I Q uOormm nm gt gt A 2728 POWER oc 9 1 27314151
4. 4 When connections are completed check that all Access panel connections are correct as shown in the wiring G jA i system diagram on panel side Plug Inter unit Power supply Conduit Conduit 5 Be sure to ground the unit according to your local codes Fig 14 15 5 Refrigerant Tubing 5 1 Use of the Flaring Method Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units In this method the copper tubes are flared at each end and connected with flare nuts 5 2 Flaring Procedure with a Flare Tool 1 Cut the copper tube to the required length with a tube cutter It is recommended to cut approx 12 to 20 30 to 50 cm longer than the tubing length you estimate 2 Remove burrs at the end of the copper tube with a tube reamer or file This process is important and should be done carefully to make a good flare Fig 15 When reaming hold the tube end downward and be sure that no copper scraps fall into the tube Fig 16 3 Remove the flare nut from the unit and be sure to mount it on the copper tube 4 Make a flare at the end of copper tube with a flare tool Figs 17 and 18 Use RIDGID or equivalent A good flare should have the following characteristics e inside surface is glossy and smooth edge is smooth e tapered sides are of uniform length 5 3 Cautio
5. 5 a x e N i N 5 A i Y o 6 3 32 Unit inch mm 852 0 0010 12700 0 19 Outdoor Unit CU KE18NKU 11 17 32 re 1 3 8 gt gt n es es oe 11 7 32 285 12 7 32 13 5 32 m he 26 3 8 670 art 23 32 Wide tube service valve dia 1 2 12 70 Narrow tube service valve dia 1 4 6 35 o o 3 32 5 23 32 Unit inch mm 852 0 0010 13200 0 4 REFRIGERANT FLOW DIAGRAM 4 1 Refrigerant Flow Diagram Indoor Unit CS KE12NB41 amp CZ 18BT1U Outdoor Unit CU KE12NK1 Indoor unit Outdoor unit PE T uu TE m 2 us Wide tube Accumulator B i l service f CE Widetube valve TET 3 e me K d High pressure i i Muffler switch i 9 52 mm ANT 4 way l 6 1 valve 1 i o l c i G G i o l 2 l 1 1 si x l l l Fa Capillary tube for 8 8 Narrow Electric split flow i tubo expansion 1 1 1 service valve Narrow tube valve 1 M L biis Cooling cycle i H gt
6. Y Tube insulation Y not supplied Flare nut Vinyl tie supplied Fig 23 Drain hose insulation Drain pipe and insulation and vinyl tie not supplied SN Refrigerant tubing and insulation 9 A not supplied Insulation tape supplied supplied wz Drain hose c O and hose band supplied 7 DU tie supplied Flare insulation supplied TN The procedure used for installing the insulation for both wide and narrow tubes are the same Fig 24 Never grasp the drain or refrigerant connecting out lets when moving the unit 5 6 Taping the Tubes 1 Atthis time the 2 refrigerant tubes and electrical wire if local codes permit should be taped together with armoring tape The drain hose may also be included and taped together as 1 bundle with the tubing 2 Wrap the armoring tape from the bottom of the outdoor unit to the top of the tubing where it enters the wall As you wrap the tubing overlap half of each previous tape turn Fig 25 8 Clamp the tubing bundle to wall using 1 clamp approx every 47 120 cm Do not wind the armoring tape too tightly since this will decrease the heat insulation effect Also be sure the con densation drain hose splits away from the bundle and drips clear of the unit and the tubing 5 7 Finishing the Installation After finishing insulating and taping over the tubing use sealing putty to seal off the h
7. 16 fa id 01 31107 ji i L A 17 SAFETV PRECAUTIONS The following symbols used in this manual alert you to potentially dangerous conditions to users service personnel or the appliance INE This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death This symbol refers to a hazard or 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 WARNING Do not install this air conditioner where there are fumes or flammable AN 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 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
8. From fan motor compressor and other parts Refer to Electric Wiring Diagram If the probe cannot enter the poles because the hole is too narrow then use a probe with a thinner pin Metallic robe part Clip Insulation Fig 4 tester 60 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 PCB Ass y Fig 6 ig es Fig 5 Fuse E a 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 about the same level as the conventional refrigerant R22 11 1 2 Components mixing proportions HFC32 5096 HFC125 50 11 1 3 Characteristics ess toxic more chemically stable refrigerant The composition of refrigerant R410A changes whether it is in a gaseous phase or liquid phase Thus when there is a refrigerant leak the basic performance of the air conditioner may be degraded because of a change in composition of the remaining refrigerant Therefore do not add new refrigerant Instead recover the remaining refrigerant with the refrigerant
9. e E SECURA Uus 51 9 3 Checking the Indoor and Outdoor Units 53 9 4 Trouble Diagnosis of Fan Motor arend 57 9 5 Noise Malfunction and Electromagnetic Interference 59 10 CHECKING ELECTRICAL COMPONENTS 10 1 Measurement of Insulation Resistance mm nn 60 10 2 Checking Continuity of Fuse on PCB ASS 61 11 REFRIGERANT R410A SPECIAL PRECAUTIONS WHEN SERVICING UNIT 11 1 Characteristics of New Refrigerant R410A ena 62 11 2 Checklist before Servicing eren teen 63 tt 3 Tools Specifically Tar RATOA mc cmi 64 11 4 Tubing Installation Procedures marne 64 1355 In or Compressor nternet 65 il 6 Refrigerant 1S Leaking Dm 67 11 7 Charging Additional Refrigerant nen enerverend eenen e reene 68 11 8 Retro Fittin Existin id 68 APPENDIX A Operating Instructions A 1 CS KE12NB41 amp CZ 18BT1U CU KE12NK1 CS KE18NB4UW amp CZ 18BT1U CU KE18NKU APPENDIX INSTALLATION INSTRUCTIONS A 2 CS KE12NB41 amp CZ 18BT1U CU KE12NK1 CS KE18NB4UW 8 CZ 18BT1U CU KE18NKU APPENDIX C Operating Instructions
10. 18 E Air Purging with a Vacuum Pump for Test Run E Basic Functions of the Service Valves E Pump Down B Service Valve Connections 7 REMOTE CONTROLLER INSTALLATION POSITION ferte tee ete 22 7 1 Mounting on a Wall 8 ADDRESS SWITCH 23 8 1 Address Setting of the Remote Controller 85264190577002 2011 CV6233187839 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 e Follow each installation or repair step exactly as shown Observe all local state and national electrical codes Pay close attention to all warning and caution notices given in this manual WARNING This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death This symbol refers to a hazard or unsafe practice which can result in personal injury or prod CAUTION 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 instructi
11. SETTEMP M DD c ON OFF operation button HIGH POWER button n EMP 1HR FM FAN SPEED MODE FLAP NIGHT SETBACK CANCEL CLOCK SENSOR 12H4b24H ACL Reset button APPENDIX Operating Instructions CZ RD515U 852 6 4181 230 00 1 f P OACL OSENSOR 7 Operating Instructions Wired Remote Controller Model No CZ RD515U This wired remote controller is designed for both the COOL DRY HEAT Model and COOL DRY Model indoor unit Once the wired remote controller is connected the wireless remote controller cannot be used Before operating the unit read these operating instructions thoroughly and keep them for future reference 85264181230001 Panasonic Corporation 1006 Kadoma Kadoma City Osaka Japan CV6233187877 FEATURES e 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 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 saves energy by controlling operation to provide a quieter operating sound t
12. above or below the outdoor unit and within a total tubing length Fig 2 L from the outdoor unit as detailed in Table 3 and Fig 2 e install the indoor unit more than 3 3 1 m away from any antenna or power lines or connecting wires used for television radio telephone security system or intercom Electrical noise Air delivery will be degraded if the distance from any of these sources may affect operation from the floor to the ceiling is greater than 10 ft 3 m Table 3 Max Allowable Tubing Limit of Tubing Limit of Elevation Required Amount of Model Length at Shipment Length L Difference H Additional Refrigerant ft ft ft CS KE12NB41 25 65 23 0 16 CS KE18NB4UW 25 100 50 0 27 f total tubing length becomes 25 to 65 ft Max or 25 to 100 ft Max charge additional refrigerant R410A by 0 16 or 0 27 oz ft No additional charge of compressor oil is necessary For more detailed charging information refer to the Technical amp Service Manual 5 2 2 Outdoor Unit NO Exhaust fah AVOID heat sources exhaust fans etc Fig 3 7 Heat source e damp humid or uneven locations Outdoor unit DO e choose a place as cool as possible choose a place that is well ventilated e install in a location where at least two sides are unob Fig 3 structed so that the flow of air at the intake port or exhaust port is not blocked and so that suffic
13. 22 1 838 80 F 26 7 C DB 67 F 19 4 C WB 95 F 35 C DB Indoor Unit Outdoor Unit Fan Motor Fan Motor Compressor 1 860 Complete Unit Performance at 230V Single phase 60Hz Rating conditions Rating conditions 2 Voltage 208V Cooling Running amp 0 19 10 31 10 5 Power input Indoor air temperature Outdoor air temperature 27 2 313 70 F 21 1 C DB 47 F 8 3 C DB 43 F 6 1 C WB Indoor Unit Outdoor Unit Fan Motor Fan Motor Compressor 2 340 lt 208V gt Complete Unit Performance at 208V Single phase 60Hz Rating conditions Rating conditions Heating Running amp 0 16 8 94 9 1 Power input Indoor air temperature Outdoor air temperature 22 1 838 80 F 26 7 C DB 67 F 19 4 C WB 95 F 35 C DB Indoor Unit Outdoor Unit Fan Motor Fan Motor Compressor 1 860 Complete Unit Performance at 208V Single phase 60Hz Rating conditions Rating conditions Running amp 0 2 11 3 11 5 Power input Indoor air temperature Outdoor air temperature 27 2 313 70 F 21 1 C DB 47 F 8 3 C DB 43 F 6 1 C WB 34 2 340 iagrams CS KE12NB41 amp CZ 18BT1U iring CS KE18NB4UW amp CZ 18BT1U 6 2 Electric W Indoor Unit c 0069r 0S0c8 cVJ8 H3T10H1NOO Je uec DB H3T1
14. nr rna A 3 CZ RD515U APPENDIX D INSTALLATION INSTRUCTIONS A 4 CZ RD515U 1 OPERATING RANGE Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Maximum 95 F DB 71 F WB 115 F DB Minimum 67 F DB 57 F WB 0 F DB Maximum 80 F DB 67 F WB 75 F DB 65 F WB Minimum DB WB DB 0 F WB Cooling Heating 2 SPECIFICATIONS 2 1 Unit Specifications 2 1 1 Indoor Unit CS KE12NB41 amp CZ 18BT1U Outdoor Unit CU KE12NK1 Voltage Rating 115V Single Phase 60Hz Cooling Heating 11 900 3 000 to 11 900 13 600 3 000 to 13 600 kW 35 0 9103 5 40 0 9104 0 7 200 4 700 Air Circulation Hi Me Lo f amp min m h 235 399 206 350 194 330 268 455 247 420 224 381 4 26 104 to 126 126 256126 146 2510148 Power Input W 1 260 250 to 1 260 1 460 250 to 1 460 Power Factor Electrical Rating Performance Q U A N N m ID sle BTU h 9 44 n D BTU Wh SPF BTU Wh Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity Controls Temperature Control Control Unit Timer Fan Speeds Indoor Outdoor Airflow Direction Indoor Horizontal Vertical Auto Washable DC Rotary Inverter RATOA 7243 1 100 Electric Expansion Valve Operation Sound Indoor Hi Me Lo dB A 34 32 31 35 34 32 Outdo
15. 5 II amp 2 14 SAL Kc 15 KA MS 2 13 e 12 11 23 32 41 50 59 68 5 0 10 15 20 Outdoor inlet air DB temp F C 8 Indoor discharge air performance chart 131 55 IC 55 Xx 122 42 50 Ike 113 45 104 40 95 35 86 30 77 25 68 Indoor discharge air temperature F C 20 23 32 4 50 59 68 5 0 10 15 20 Outdoor inlet air DB temp F C Check each performance value in test run mode Electrical performance values represent combined indoor outdoor value Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode Refer to 8 2 Protective Functions Overload prevention during heating 24 Indoor Unit CS KE18NB4UW amp CZ 18BT1U Outdoor Unit CU KE18NKU il Cooling Characteristics RH 46 Indoor fan speed High fan 60Hz 230V 1 Low pressure performance chart psig MPaG i 0 7 73 0 5 77 86 95 104 25 30 35 40 Outdoor inlet air DB temp F C Low pressure at wide tube service valve 2 Operating current performance chart
16. Setting temperature a F 2 C T 30 min 30 min Press the NIGHT SETBACK button Time 8 2 Protective Functions During HEAT operation the temperature of the indoor heat exchanger is used to control the frequency and lessen the load on the compressor before the protective device is activated Indoor heat exchanger A Control start B Control end Approx 127 53 Approx 117 47 temperature F C Indoor heat exchanger b gt Area Automatic capacity control When Point A has been exceeded the operation frequency is reduced by a certain proportion Area Frequency increase is prohibited At Point B and below overload prevention is ended and control is the same as in the a area D 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 or above EN 8 EN Q Indoor heat exchanger temperature F C 5 je a Area Automatic capacity control b When the temperature drops below Point A th
17. Unit Dimensions HxWxD inch 40x625x625 mm Net Weight Ibs kg 6 0 2 7 SPECIFICATIONS CONTINUED For Multiple use Indoor Unit Model No CS KE18NB4UW Power Source Single phase 208 230 V 60 Hz 5 15 Cooling Capacit Pw 0 548 Heating Capacity Paw 600 20 400 Cooling Operation Operation H M L dB A 44 40 36 Sound Heating Operation H M L dB A 44 40 36 Unit Dimensions HxWxD uc rae Net Weight Ibs kg 35 3 16 0 e For Multiple use Model No CU 3KE19NBU CU 4KE24NBU CU 4KE31NBU Power Source Heati it eating Capacity BTU 24 800 11 600 24 800 29 200 11 600 29 200 32 000 11 600 32 000 Operation Cooling Operation Hi Sound Heating Operation H nn MEE 29 1 8x35 7 16x12 19 32 29 1 8x35 ITE 19 32 35 UT TE 19 32 Mekka 740x900x320 740x900x320 890x900x320 Net Weight Ibs kg 143 3 65 0 143 3 65 0 180 8 82 0 18 APPENDIX B INSTALLATION INSTRUCTIONS CS KE12NB41 amp CZ 18BT1U CU KE12NK1 CS KE18NB4UW amp CZ 18BT1U CU KE18NKU 852 6 4190 577 00 2 A 2 INSTALLATION INSTRUCTIONS Panasonic Split System Air Conditioner This air conditioner uses the refrigerant R410A Contents External diameter of service port R410A 5 16 Page IMPORTANT Model Combinations Please Read Before Starting 2 1 GENERAL 4 Combine indoor and outdoor units only as
18. Diagnostic results All of the above measured values are normal Fan motor trouble Replace the motor Any one of the above measured values is not normal Indoor unit controller trouble Replace the controller Reference 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 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 not change during indoor unit operation Trouble symptom 5 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 57 9 4 2 Outdoor Fan Motor e 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 Important A Turn OFF the power before connecting or disconnecting the motor connectors B When performing voltage m
19. 8 a Control box cover Installation Instructions supplied with the indoor unit Indicator 5P FLAP 7P IND and 4P RC Ceiling wiring connector wiring connector Clamps 5P FLAP wiring connector 7P IND and 4P RC Wire harness wiring connector NS i YN Terminal cover Wire harness Indicator Clamping strap Fig 8 9 Pull in the wire harness from the remote controller as shown in Fig 8 b Remove the putty before wiring After wiring make sure to restore the putty 7 Insert the wire harness 4P terminal into the control box PCB connector RC Fig 8 Fig 8 b 8 Remove the terminal cover screws then remove the cover At this time take care not to drop the cover Fig 8 8 Install the terminal cover Then install the ceiling panel Refer to 3 6 How to Install the Ceiling Panel in the Installation Instructions supplied with the indoor unit 9 Insert only the 7P IND terminal of the 7P IND and 4P RC wiring connector into the connector IND on the control box PCB Store the 4P terminal inside the control box Fig 8 a 10 Next insert the 5P terminal of the 5P FLAP
20. Air intake 2222222 2222222222 22222 cz 22222 ZA ux Zee ZZ Concrete EE 22222 Et or equal 22222 N 2222 Zeg ZEA zz N EE Ab 490 Cushion rubber Ou EEA 4 40 em 3 How to Install the Indoor Unit 3 1 Preparation for Suspending This unit uses a drain pump Use a carpenter s level to check that the unit is level 3 2 Suspending the Indoor Unit 1 Fix the suspension bolts securely in the ceiling using the method shown in the diagrams by attaching them to the ceiling support structure or by any other method that ensures that the unit will be securely and safely suspended Fig 6 1 2 Follow the diagram to make the holes in the ceiling 3 Determine the pitch of the suspension bolts using the supplied full scale installation diagram The dia gram shows the relationship between the positions of the suspension fitting unit and panel Fig 6 2 3 3 Placing the Unit Inside the Ceiling 1 Be sure to remove the fan protection 4pcs for transportation before hanging up the indoor unit 2 When placing the unit inside the ceiling determine the pitch of the suspension bolts using the supplied full scale installation diagram Fig 6 3 Tubing and wiring must be laid inside the ceiling when suspending the unit If the ceiling is already constructed lay the tubing and wiring into position for connection to the unit before placing the unit inside the ceiling
21. E 102 75 F QAO o 0 7 he 5 z 8 73 20 88 104 25 30 35 y Outdoor inlet air DB temp F C 2 Operating current performance chart 15 14 T t g 13 Es o S 12 Q 11 10 77 86 95 104 25 30 35 40 Outdoor inlet air DB temp F C 3 Indoor discharge air performance chart 68 20 Lo Fan Hi Fan 59 15 10 ikddor Air Temp 89 t 30 C 6 Fr her eae LLC Indoor discharge air temperature F C 5 32 0 77 86 95 104 25 30 35 40 Outdoor inlet air DB temp F C NOTE Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value 23 Indoor Unit CS KE12NB41 amp CZ 18BT1U Outdoor Unit CU KE12NK1 B Heating Characteristics RH 85 Indoor fan speed High fan 60Hz 115V 1 High pressure performance chart psig MPaG 290 2 0 High pressure at wide tube service valve To 218 1 5 23 32 50 59 68 5 0 5 10 15 20 Outdoor inlet air DB temp F C 2 Operating current performance chart 17 SON 16 K z y t 15 Ae SSA
22. Electromagnetic interference Either of the following trouble may occur 1 The unit may stop suddenly during operation 2 Indicator lamps may flicker The fundamental concept is to make the system less susceptible to noise Insulate for noise or distance from the noise source 1 Use shielded wires 2 Move unit away from the noise source 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 Locations most susceptible to noise Trouble Correction 1 A television or radio is located near the A C and A C wiring 2 The antenna cable for a television or radio is located close to the A C and A C wiring 3 Locations where television and radio signals are weak 1 Noise appears in the television picture or the picture is distorted 2 Static occurs in the radio sound 59 1 Select a separate power source Keep the A C and A C wiring at least 1 meter away from wireless devices and antenna cables Change the wireless device s antenna to a high sensitivity antenna Change the antenna cable to a BS coaxial cable Use a noise filter for the wireless device Use a signal booster 10 CHECKING ELECTRICAL COMPONENTS 10 1 Measurement of Insulation Ground wire Resistance The insulat
23. F 95 C Run Capacitor Micro Fi vac Crankcase Heater Q ty Dia inch mm 1 D16 17 32 D420 NoofPoles LL Coil Resistance Ohm RED WHT 77 5 Ambient Temp 68 F 20 C WHT BLU 77 5 BLU RED 77 5 Safety Device Type Internal Controller Over Current Protection Run Capacitor MiroF vac Heat Exchanger Coil Coi mm Fins per inch Face Area Fm External Finish S Acrylic baked on enamel finish DATA SUBJECT TO CHANGE WITHOUT NOTICE 2 3 Other Component Specifications Indoor Unit CS KE12NB41 amp CZ 18BT1U CS KE18NB4UW amp CZ 18BT1U Outdoor Unit CU KE12NK1 CU KE18NKU Indoor heat exchanger sensor Model PT2M 51H S3 Compressor temp sensor Indoor air temp sensor CU KE12NK1 Model DTN TKS274Y TH2 Model KTEC 35 S98 CU KE18NKU Model DTN TKS293B 200 180 160 140 120 100 80 60 40 5 Resistance ohm eb B N Resistance ohm a 20 o 50 59 68 77 86 95 104 10 15 20 25 30 35 40 Temperature F C 32 50 68 86 104 122 140 158 176 194 0 10 20 30 40 50 60 70 80 90 Temperature F C Outdoor air temp sensor CU KE12NK1 Model
24. O D PCB FAILURE 2 HIC OR POWER TR FAILURE PAM CIRCUIT TROUBLE ACTIVE CIRCUIT TROUBLE O D PCB FAILURE O D POWER VOLTAGE TROUBLE COMPRESSOR DISCHARGE TEMP OVERHEATING PREVENTION INSUFFICIENT GAS 4 CONTINUOUS OVERLOAD OPERATION O D FAN NOT OPERATING 6 O D PCB FAILURE I D FAN OPERATION TROUBLE 4 WAY VALVE SWITCHING TROUBLE ZERO CROSS TROUBLE FAN MOTOR FAILURE I D PCB FAILURE 1 4 WAY VALVE FAILURE HEAT PUMP MODEL ONLY 2 O D PCB FAILURE ELECTRIC EXPANSION VALVE FAILURE 2 CHOKED CAPILLARY TUBE 2 CONNECTOR CONTACT FAILURE 1 3 1 2 1 3 5 1 8 GAS LOSS PREVENTION 1 SERVICE VALVE NOT OPENED 2 INSUFFICIENT GAS DC COMPRESSOR DRIVE CIRCUIT TROUBLE O D DC FAN OPERATION TROUBLE 1 OPEN PHASE 2 O D PCB FAILURE FAN MOTOR FAILURE O D PCB FAILURE 2 CONNECTOR CONTACT FAILURE dE ee SE CE E ELSE 2 LEE X X X e X 19 9 ik a ik s O D SYSTEM COMM FAILURE OLR OPERATION O D POWER OPEN PHASE O D FREEZING MIS WIRING 2 BLOWN FUSE COMPRESSOR FAILURE ia 6 e TIMER LAMP BLINKING 3 SEC INTERVAL FREEZING PREVENTION OPERATION FLOAT SWICTH FS IS ACTIVED 52 1 3 1 I D FAN SYSTEM TROUBLE 2 INSUFFICIENT GAS 1 3 5 3 OPERATION AT LOW TEMPERATURE POWER RELAY FAILURE 4 O D PCB FAILURE 1 DRAIN PU
25. 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 48 B 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 C mark appears on the remote controller The main unit display lamp also becomes dimmer COOL and DRY modes When the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F 1 C 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 F 1 C Setting temperature n 2 1 ep Press the NIGHT 30min 30min SETBACK button Time HEAT mode When the night setback mode is selected the air conditioner automatically lowers the temperature setting 4 F 2 C when 30 minutes have passed after the selection was made and then another 4 F 2 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 heating is needed
26. To start the air conditioner press the ON OFF operation button STEP3 Press the TEMP setting buttons to change the temperature setting to the desired temperature Adjustable temperature range 86 F max 60 F min 30 C max or 16 C min 4 Setthe FAN SPEED selector button to the setting you want STEP5 Press the FLAP button and set the airflow direction as desired Refer to ADJUSTING THE AIRFLOW DIRECTION on page 13 NOTE To stop the air conditioner press the ON OFF operation button again 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 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 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 desired 89 3 or 98 4 Fan Only ON I OFF O POWER ST
27. button Refer to Fig 9 on page 4 to locate the ACL Reset but ton 85264190592000 2011 A WARNING To avoid an electric shock hazard DO NOT touch any terminal on the Printed Circuit Board with a metal rod a screwdriver edge nor a bare hand when power is supplied Press the Reset button after changing Switch settings Em Fig 1 J CV6233187884 A Installing with in wall junction box 1 Install the junction box locally purchased into the wall Figs 2 a and 3 2 Pass the wire harness through the junction box and conduit Fig 3 3 Insert a flathead screwdriver into the 5 tab locations and disconnect the back plate of the remote controller by lifting up slightly Fig 2 b The tabs are thin take care not to chip them 4 Pass the wire harness connector through the cord open ing on the back plate of the remote controller Use nippers or a similar tool to cut out the slots for the remote controller back plate screws Insert the spacers and use the machine screws to install the remote con troller back plate Fig 3 5 Insert the connector into the PCB of the remote controller unit and wrap the wire harness around the hook Fig 4 6 Store the excess wire harness inside the junction box then hook the remote controller unit onto the top of the back plate and install the remote controller unit 7 To remove the remote controller un
28. lt Check Items before Troubleshooting Serial Communication Start gt After confirming that the following errors do not exist start the Troubleshooting Serial Communication in Condition E01 and E12 6 Reactor failure defective insulation etc 7 High Pressure Switch failure 8 Overload Relay failure 9 Magnetic Coil failure defective insulation short circuit etc 10 Compressor failure defective insulation etc Mis wiring inter unit cable etc AC power failure Blown fuse Power Relay failure Outdoor Fan Motor failure defective insulation etc 3 1 Condition E01 T Outdoor Unit 112 Y c Indoor Unit Outdoor Unit 4 5 6 Troubleshooting Serial Communication 1 2 3 Indoor Unit Fig 1 Fig 2 Is the voltage of about DC12V or more given between the terminals 2 and 3 on the outdoor unit terminal strip Serial Communication Line Fig 1 A Continued to the next page A 54 1 Turn OFF the power and wait until the power lamp LED of the outdoor unit controller is turned OFF 2 Disconnect the cable from the terminal 3 on the indoor unit terminal strip Fig 2 3 Turn ON the power B Continued to the next page B Continued from the previous page Yes Turn OFF the power and wait until the power
29. the cover Be careful not to drop the cover at this time for water intake Water 4 Disconnect the FS 3P connector red on the control PCB and Approx 16 ounces vomit operate the drain pump Fig 6 10b Check the water flow Fig 6 10a through the transparent drain pipe and see if there is any leakage Control box 5 When the check of drainage is complete reconnect the FS 3P connector and remount the control cover The drain pump will continue to CAUTION operate for a minimum of 6 min utes after the FS 3P connector is reconnected A must be within the range of 1 2 13mm to 23 32 18mm Fig 6 11 If not within this range malfunction or other trouble may occur 3 6 How to Install the Ceiling Panel Indoor unit Checking the unit position 1 Check that the ceiling hole is 23 5 8 600 mm x 23 5 8 On en 600 mm Fig 6 11 Ceiling side 2 Confirm that the position of the indoor unit and the ceiling Fig 6 11 as shown in the diagram If the positions of the ceiling sur NO face and unit do not match air leakage water leakage flap operation failure or other problems may occur Fig 6 11 AN een Never place the panel face down Neither hang it ver Fig 6 12 Fig 6 13 tically nor place it on top of a projecting object Plac ing it face down will damage the surface Air intake grille e Do not touch the flap or apply force to it This may cause flap malfunction Fi
30. 1 I 8 13 3 13 10 6 18 a zE 23 5 28 N N 33 0 38 3 95 43 6 zx 48 8 53 11 7 58 14 4 63 17 2 65 18 3 NOTE 1 Rating conditions f Indoor Unit Entering Air Temp 70 F 21 1 C DB Outdoor Ambient Temp 47 F 8 3 DB 43 F 6 1 C WB 2 Above data does not take Defrost Operation Overload Prevention Protection and or Cold Air Prevention Protection during heating operation into account For this reason the value may vary from the actual heating characteristics 3 Above data represents the value when the operation frequency of a compressor is fixed 31 Indoor Unit CS KE18NB4UW amp CZ 18BT1U Outdoor Unit CU KE18NKU Power Supply 230V Single Phase 60Hz lt Heating Capacity gt RATING CAPACITY 20 400 BTU h AIR FLOW RATE 383 CFM TEMP INDOOR ENT TEMP AMBIENT TEMP C i ELA we m es n 28 2 2 16 730 16 800 16 850 16 890 16 770 33 iii al TH Total Heating Capacity BTU h 38 3 Co Co 43 6 48 8 NOTE 1 Rating conditions f Indoor Unit Entering Air Temp 70 F 21 1 C DB Outdoor Ambient Temp 47 F 8 3 DB 43 F 6 1 C WB 2 Above data does not take Defrost Operation Overload Prevention Protection
31. 26mm fasten hose locally purchased paride Drain port Drain hose supplied Hose band 2 bands supplied Fig 6 5 e Attach so that the hose band fastener is on the side of the drain port e Attach the hose bands so that each is approximately 3 16 5 mm to 15 16 25 mm from the end of the supplied drain hose L Air bleeder prohibited RU DES Fig 6 6 CAUTION 9 Do not install an air bleeder as this may cause water to spray from the drain pipe outlet Fig 6 6 1 500m or less E ek les ft 850mm or less Length of supplied drain hose 5 1 2 140mm Fig 6 7 Uphill slope Fig 6 8 Support bracket Fig 6 9 3 5 Checking the Drainage After wiring and drain piping are completed use the following pro cedure to check that the water will drain smoothly For this pre pare a bucket and wiping cloth to catch and wipe up spilled water Be sure to do the wiring between the units before installing the ceiling panel Refer to 3 9 Wiring Instructions for Inter unit Connections Water drain 1 Turn on the power Here power refers to the power supply Over 4 from the outdoor unit 100mm 2 Slowly pour approx 16 ounces 500 ml of water into the drain pan to check drainage Fig 6 10a a 3 Remove the 2 screws from the control box cover then open Drain pan outlet
32. Be sure to charge the specified amount of refrigerant in liquid state using the service port of the wide tube service valve The proper amount is listed on the unit s nameplate When the entire amount cannot be charged all at once charge gradually while operating the unit in Cooling Operation CAUTION Never charge a large amount of liquid refrigerant at once to the unit This may cause damage to the compressor When charging with a refrigerant cylinder use an electronic scale for charging refrigerant In this case if the volume of refrigerant in the cylinder becomes less than 20 of the fully charged amount the composition of the refrigerant starts to change Thus do not use the refrigerant if the amount in the charging cylinder is less than 20 Also charge the minimum necessary amount to the charging cylinder before using it to charge the air conditioning unit Example In case of charging refrigerant to a unit requiring 1 68 Ib 0 76 Kg using a capacity of a 22 Ib 10 Kg cylinder the minimum necessary amount for the cylinder is 1 68 22 x 0 20 6 08 Ib 0 76 10 x 0 20 2 76 Kg For the remaining refrigerant refer to the instructions of the refrigerant manufacturer If using a charging cylinder transfer the specified amount of liquid refrigerant from the refrigerant cylinder to the charging cylinder Prepare an evacuated charging cylinder beforehand CAUTION 9 To prevent the composition
33. Break the address setting tab marked A on the second remote controller to change the address Fig 37 When the tab is removed the address is automatically set to B Fig 38 3 Press and hold the remote controller HIGH POWER 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 HIGH POWER and 1HR TIMER but tons 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 but ton 2 times to change the display to oP 7 Address setting Fig 39 Test run mode m 1 d w px 0 gt m Self diagnostic mode A E 1 Address setting mode jw V 5 oP 7 has now been selected for address setting 6 Press the ON OFF operation button on the remote controller Fig 39 Check that the beep signal received sound 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 button to cancel the blinking oP 7 display Fig 39 Changing of the second remote controller address is now completed 23 ACL button AIR CONDITIONER OR ORB
34. DTN TKS269B CU KE18NKU Model TKS295B Outdoor heat exchanger sensor CU KE12NK1 Model DTN TKS274Y TH1 CU KE18NKU Model TKS292B 40 35 30 25 20 15 Resistance ohm 10 4 5 14 23 32 41 50 59 68 20 15 10 5 0 5 10 15 20 Temperature F C 17 CS KE12NB41 amp CZ 18BT1U CS KE18NB4UW amp CZ 18BT1U 3 DIMENSIONAL DATA Indoor Unit eq 3ouueo e ey pue joued eui gt le sx JOBJUOJJJIM y Buoj oo 515 00 ids gis uoisuedsns ey jj 3u8u ye A ks 2 UMOUS se 5 Si eoeuns Jamo ey e N 2 91001 JO 2 L2 Bula sur fo 8 1 cm 10 91 1 siasa m 124 os pojoejes eq 5 5104 He 5 l uoisuedsns ey Jo yua SUL E S S ce o 2 896 26 c 6L vc E c 1 5591 c amp LE uey 5591 E82 6 1 dino Sus mal Unit inch mm 18 9 9 8 S Z
35. Indoor Unit Fig 3 Defect in the outdoor unit P C board Outdoor Unit Outdoor Unit Indoor Unit Fig 4 Fig 5 Defect or connection error in the inter unit cable 3 2 Condition E12 Troubleshooting Serial Communication Outdoor Unit Turn off the power and wait until the power lamp LED of the outdoor unit controller is turned OFF 2 Disconnect the cable from the terminal 3 on the Outdoor unit terminal strip Fig 6 Fig 6 1 Turn ON the power and operate the system using the remote controller or the operation button on the indoor unit 2 Perform the self diagnosis five seconds after the operation start Indoor Unit Condition EO1 Defect in the outdoor unit What is the latest self diagnosis result P C board Condition E12 Outdoor Unit E Turn off the power and wait until the power lamp LED of the outdoor unit controller is turned OFF 2 Disconnect the cable from the terminal 3 on the indoor unit terminal strip Fig 7 Indoor Unit Fig 7 1 Turn ON the power and operate the system using the remote controller or the operation button on the indoor unit 2 Perform the self diagnosis five seconds after the operation start Condition EO1 Defect in the inter unit What is the latest self diagnosis result cable Condition E12 Defect in the indoor unit P C board 56 9 4 Trouble Diagnosis of Fan Moto
36. OPERATION lamp A TIMER lamp SY ON HIGH POWER lamp REMOTE CONTROL receiver A IMPORTANT Avoid using radio equipment such as mobile phone near within 4 ft 1 2 m the remote control receiver Some radio equipment mav cause malfunction of the unit If the trouble happens disconnect power and restart the air conditioner after a few minutes REMOTE This section picks up infrared signals from the CONTROL remote controller transmitter receiver OPERATION When the remote controller cannot be used button pressing this button enables heating and cooling operation Each time this button is pressed the tvpe of operation conducted is indicated bv the changing color of the OPERATION lamp Press the button and select the lamp color that suits vour preference for operation Cooling Heating Stop operation 5 operation gt green red lamp off OPERATION This lamp lights when the system is in the lamp continuous AUTO red or green HEAT red DRY orange COOL green and FAN green mode but no FAN mode at M of the S M switch on the remote controller The OPERATION lamp lights up red and orange alternately when the system is defrosting TIMER lamp This lamp lights when the system is being controlled by the timer HIGH POWER _ This lamp lights during operation in the HIGH lamp POWER mode NOTE The units display lamps are dimmed during operation the NIGHT SETBACK m
37. Press this button to select the mode you want to program ACL button ALL CLEAR When you press the ACL button while the ON OFF operation button This button is for turning the air conditioner on and off EG MODE selector button Use this button to select AUTO HEAT DRY COOL or FAN mode AUTO HEAT DRY COOL FAN ss When this setting is selected the air conditioner calculates the difference between the thermostat setting and the room temperature and automatically switches to the COOL or HEAT mode as appropriate This function is available only for Single use of COOL DRY HEAT Model The air conditioner makes the room warmer The air conditioner reduces the humidity in the room The air conditioner makes the room cooler The air conditioner works only as a circulation fan except for Multiple use of COOL DRY HEAT Model 1 HR TIMER button 1 HOUR OFF TIMER When you press this button regardless of whether the unit is operating or stopping the unit operates for one hour and then shuts down TIMER SELECT button No display The timer does not operate 9 The air conditioner starts at the set time NOTE Sensor The air conditioner stops at the set time The air conditioner stops and starts or starts and stops at the set times every day A tempera
38. Wide Tube Model Outer Dia Thickness Outer Dia Thickness CS KE12NB41 1 4 6 35 mm 0 0314 0 8 mm 3 8 9 52 mm 0 0314 0 8 mm CS KE18NB4UW 1 4 6 35 mm 0 0314 0 8 mm 1 2 12 70 mm 0 0314 0 8 mm limitations 4 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 NEMO To prevent abnormal heat genera tion and the possibility of fire do not place obstacles enclosures and grilles in front of or surround ing the air conditioner in a way that may block air flow AVOID e direct sunlight nearby heat sources that may affect performance of the unit WS e areas where leakage of flammable gas may be expected places where large amounts of oil mist exist E DO select an appropriate position from which every corner of the Fig 1 room can be uniformly cooled select a location that will hold the weight of the unit select a location where tubing and drain hose have the 4 T shortest run to the outside 8 allow room for operation and maintenance as well as unre r 5 stricted air flow around the unit Fig 1 Outdoor unit 8 install the unit within the maximum elevation difference
39. are fumes or N flammable gases or in an extremelv humid space such as a greenhouse e Donotinstall the wired remote controller where excessivelv high heat generating objects are placed e To prevent possible hazards from insulation failure the unit must be grounded e Donotclean inside the indoor and outdoor units bv 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 e For safety be sure to turn the air conditioner off and also to disconnect the power before cleaning ES 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 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 powe
40. entere tte evens PRODUCT INFORMATION SAFETY PRECAUTIONS INSTALLATION LOCATION ELECTRICAL REQUIREMENTS SAFETY INSTRUCTIONS REMOTE CONTROLLER OPERATION WITH THE REMOTE CONTROLLER 1 Automatic Operation only for COOL DRY HEAT Model 2 Manual Operation 3 Adjusting the Fan Speed 4 Fan Only 5 Night Setback Mode SPECIAL REMARKS SETTING THE TIMER USING THE 1 HOUR OFF TIMER ADJUSTING THE AIRFLOW DIRECTION PRODUCT INFORMATION If you have problems or questions concerning your wired remote controller you will need the following information Model No Date of purchase Dealer s address Phone number SAFETY PRECAUTIONS The following symbols used in this manual alert you to potentially dangerous conditions to users service personnel or the appliance N This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage INSTALLATION LOCATION We recommend that this wired remote controller be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit nmm Do not install this wired remote controller where there
41. injured and the unit may be damaged A 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 1 General This booklet briefly outlines where and how to install the air conditioning system Please read over the entire set of instruc tions 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 supplied 1 Standard screwdriver 6 Sabre saw or key hole saw 11 Tube cutter 2 Phillips head screwdriver 7 Hacksaw 12 Tube flaring tool 3 Knife or wire stripper 8 Core bits 13 Torque wrench 4 Tape measure 9 Hammer 14 Adjustable wrench 5 Carpenter s level 10 Drill 15 Reamer for deburring 1 2 Accessories Supplied with Unit Table 1 Parts Figure Q ty Remarks Parts Figure For temporarily For full scale Washer 8 suspending indoor Truss head screw Om e on 2 4 installation Ce unit from ceiling diagram Flare verra a e Eis Bose CMM Forunit a PVC insulation EAN 15 set connection 5 1 2 L140 tube connection For wide Insulation tape ej 2 narrow tube Hose band X 2 Ra Re 3 32 T2 flare nut connection For flare drain Truss head Phillips Vinyl tie E 8 insulating Tapping screw 5 32 x 5 8 2 connection 4x16mm Om Drain hose For
42. insulation failure the unit must be ground ed 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 5 Do not allow wiring to touch the refrigerant tubing compressor or any moving parts of the fan 6 Unauthorized changes in the internal wiring can be very dangerous The manu facturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes 3 8 Recommended Wire Length and Diameter Regulations on wiring diameter differ from locality to locality For field wiring require ments please refer to your local electrical codes Carefully observe these regula tions when carrying out the installation Table 4 lists recommended wire lengths and diameters for power supply systems Refer to the wiring system diagram Fig 7a or Fig 7b for the meaning of A B and C in Table 4 Refer to your local codes or in the absence of local codes see the National Electric Code ANSI NFPA70 12 Table 4 Cross Sectional A B A Power Supply Wiring Length ft C Control Area AWG B Power Line Length ft Line Length ft Fuse or Circuit Breaker Capacity Model 14 12 14 CU KE12NK1 131 Max 230 Max 65 Max 20A CU KE18NKU 131 Max 230 Max 100 Max 15A WARNING e Be sure to comply with local codes on runni
43. 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 9 2 Method of Self Diagnostics lt Clock display gt Follow the procedure below to perform detailed trouble diagnostics m 4 Test run mode Self diagnostics mode 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 ROM socket insertion problem or the ROM has not been installed AIR CONDITIONER DO GS DID GY OFFS AM TATA TATA 0 00 0 000 0 S SB ON 1 OFF O ON OFF T operation button 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 HIGH POWER button and 1 HIGH POWER HR TIMER button Then press and hold the ACL reset button button b with a pointed object such as the tip of a pen After 5 seconds EMP 1HR
44. lamp LED of the outdoor unit controller is turned OFF Short circuit between the terminals 2 and 3 on the outdoor unit terminal strip Fig 3 Turn ON the power and operate the system using the remote controller or the operation button on the indoor unit Perform the self diagnosis five seconds after the operation start Condition E12 What is the latest self diagnosis result Condition EO1 Turn off the power and wait until the power lamp LED of the outdoor unit controller is turned OFF Remove the short circuit between the terminals 2 and 3 on the outdoor unit terminal strip Disconnect the cable from the terminal 3 on the indoor unit terminal strip Fig 4 Short circuit between the terminals 2 and 3 on the indoor unit terminal board Fig 5 1 Turn ON the power and operate the system using the remote controller or the operation button on the indoor unit 2 Perform the self diagnosis five seconds after the operation start Condition E12 What is the latest self diagnosis result Condition EO1 Defect in the indoor unit P C board 55 Defect or connection error in the inter unit cable Indoor Unit Continued from the previous page B B Is the voltage of about DC22V to 24V given between the terminals 2 and 3 on the indoor unit terminal strip Serial Communication Line Defect in the indoor unit P C board Outdoor Unit slalsiel Imla
45. listed 1 1 Tools Required for Installation not supplied 1 2 Accessories Supplied with Unit 1 3 Optional Copper Tubing Kit Model No 1 4 Type of Copper Tube and Insulation Material 1 5 Additional Materials Required for Installation below Outdoor dan CS KE12NB41 CU KE12NK11 2 INSTALLATION SITE SELECTION 5 Power Source 2 1 Indoor Unit 60 Hz single phase 115 V 2 2 Outdoor Unit CS KE18NBAUW CU KE18NKU 3 HOW TO INSTALL THE INDOOR UNIT 7 Power Source 3 1 Preparation for Suspending 60 Hz single phase 230 208 V 3 2 Suspending the Indoor Unit 3 3 Placing the Unit Inside the Ceiling Ceiling Panel 3 4 Installing the Drain Piping en 3 5 Checking the Drainage CZ 18BT1U 3 6 How to Install the Ceiling Panel 3 7 Wiring Instructions 3 8 Recommended Wire Length and Diameter 3 9 Wiring Instructions for Inter unit Connections 4 HOW TO INSTALL THE OUTDOOR UNIT 15 4 1 Wiring Instructions for the Outdoor Unit 5 REFRIGERANT TUBING 16 1 Use of the Flaring Method 2 Flaring Procedure with a Flare Tool 3 Caution before Connecting Tubes Tightly 4 Connecting Tubing between Indoor and Outdoor Units 5 5 Insulation of Refrigerant Tubing 5 6 Taping the Tubes 5 7 Finishing the Installation 6
46. once To cancel the setting press the TIMER SELECT button twice NOTE You can check the timer ON OFF times after you have set them by pressing the SET button 5 Backup function Even if the main power supply to the unit is turned off the remote controller will store the previous settings in its internal memory for up to 8 hours If the power is not turned back on within 8 hours the previous settings will be lost In this case the mode settings must be reset by the user USING THE 1 HOUR OFF TIMER 1 1 Hour OFF Timer E 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 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 NOTE e If 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 t is not possible to use the OFF Ti
47. pk Ci zl Defrosting cycle O D Strainer Muffler 1 4 He LA oe m c me wet eating cycle 6 35 mm g 21 Indoor Unit CS KE18NB4UW amp CZ 18BT1U Outdoor Unit CU KE18NKU Indoor unit Outdoor unit Wide tube Accumulator i A j service i 3 Compressor Wide tube valve T m T H ee K Or High pressure i i Muffler switch i 1 O D 1 EC 12 7mm 1 valve o D l c 5 g i o l 2 1 1 si x l l Capillary tube for 8 8 Narrow Electric split flow i tub expansion i oup valve service Narrow tube valve M lt moe CED Cooling cycle HD Ec Da s LI Defrosting cycle O D Strainer _ gt _ D DM ADAE SS e a aaa 1 oe a2 a m me wet Heating cycle 6 35 mm 22 5 PERFORMANCE DATA 5 1 Temperature Charts Indoor Unit CS KE12NB41 amp CZ 18BT1U Outdoor Unit CU KE12NK1 E Cooling Characteristics RH 46 Indoor fan speed High fan 60Hz 115V 1 Low pressure performance chart 86 SE 88 131 vw 09 JU Indoor Air Temp 86 EC goor 2740
48. prolonged idle period Operate the fan for half a day to dry out the inside Disconnect the power supply and also turn off the circuit breaker Clean the air filter and replace it in its original position Outdoor unit internal components must be checked and cleaned periodically Contact your local dealer for this service 15 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 Trouble Possible Cause Remedy 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 run down 1 Restore power 2 Contact service center 3 Consult your electrician or dealer 4 Replace batteries OPERATION lamp blinks and air conditioner does not operate Trouble in system Contact service center Compressor runs but Soon stops Obstruction in front of condenser coil Outdoor Unit Remove obstruction Poor cooling or heating performance 1 Dirty or clogged air filter 2 Heat source or many people in room 3 Doors and or windows are open 4 Obstacle near air intake or air discharge port 5 Thermostat is set too high for cooling or too low for heating 6 Outdoor temperat
49. recovery unit Then after evacuation totally recharge the specified amount of refrigerant with the new refrigerant at its normal mixed composition state in liquid phase When refrigerant R410A is used the composition will differ depending on whether it is in gaseous or liquid phase and the basic performance of the air conditioner will be degraded if it is charged while the refrigerant is in gaseous state Thus always charge the refrigerant while it is in liquid phase Ether type oil is used for compressor oil for R410A type units which is different from the mineral oil used for R22 Thus more attention to moisture prevention and faster replacement work compared with conventional models are required 62 11 2 Checklist before Servicing Use a clutch type flare tool for R410A or the conventional flare tool Note that sizes of the resultant flares differ between these two tools Where a conventional flare tool is used make sure to observe A Specification amount of extrusion by using the flare spacer Specification A Flare tool for R410A Conventional flare tool for R22 Diameter of tube D Dia 1 4 6 35 mm Dia 3 8 9 52 mm 0 to 0 0196 0 0472 Dia 1 2 12 7 mm 0 to 0 5 mm 1 2 mm Dia 5 8 15 88 mm e Size of flare Spacer i 7 l A R TS A Flare tool for R410A Conventional flare tool R22 e Tubing precautions e Refrigerant R410A is more easil
50. soap with a clean cloth counter clockwise to fully open the valve 9 fully open the valve wrench before attempting to turn the valve Leak test all joints at the tubing both indoor and outdoors with With the hex wrench turn the wide tube service valve stem To prevent other refrigerants from being mistakenly charged to units which use R410A the size of the charge port on the service valve is different from the one for other refrigerant types For servicing such as recharging the specified charging hose manifold and vacuum pump adapter with reverse flow prevention for R410A must be used The required time in Table 6 is calculated based on the assumption that the ideal or target vacuum condition is around 0 193 psi 10 mmHg abs SUP Narrow tube L Hex wrench OZ ee Wide tube Ib BAND WA Valve cap Vacuum hose to manifold valve Fig 28 Turn the narrow tube service valve stem counter clockwise to 10 Loosen the vacuum hose connected to the wide tube service port slightiv to release the pressure Then remove the hose hose quickiv This mav cause the refrigerant gas to leak In order to avoid this take off the 11 Fasten the valve cap on the wide tube service port securelv with an adjustable wrench or box wrench Next mount the valve cap on the service valve and tighten it to 170 Ibs in 200 kgf cm with a torque wrench This process is very important to prevent gas from
51. the unit and the ceiling panel or between the ceiling panel and the ceiling sur face Gaps may cause water leakage and condensation Check that the wiring is securely connected If itis not securely connected the auto flap will not operate In addition water leakage and condensation may occur 3 6 6 When Removing the Ceiling Panel for Servicing When removing the ceiling panel for servicing remove the air intake grille and air filter disconnect the flap and the indi cator wiring connectors inside the control box and then remove the 4 mounting screws 3 6 7 Adjusting the Auto Flap The air direction flap on the ceiling panel outlet can be adjusted as follows e Adjust the flap to the desired angle using the remote controller The flap also has an automatic air sweeping mecha nism Never attempt to move the flap by hand Proper air flow depends on the location of the air conditioner the layout of the room and furniture etc If cooling or heating seems inadequate try changing the direction of the air flow 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 and circuit breaker for overcurrent protection provided in the exclu sive line 3 To prevent possible hazards due to
52. 0H1NOO 1HM dau de LHM d9 de 13A de LHM dS LHM dZ 1H n8 de ma 49 WooH S3 IS zov LOY elu elu oO an e t T o ma mre PP pp BP AA AA 13 2 m o YO 2 om o 2 8 5 m DI g ma HOLON L I z HOLSIINH3H L ASSY dINVT asva WNIWHAL 1 35 LINN HOOGLNO OL o Outdoor Unit CU KE12NK1 1P CONNECTOR WHT 141 1P CONNECTOR WHT 141 LWHT WHT CRANKCASE HEATER C E EL COIL COM arc Dor hihi 9 pon d 9 213 1 muss d mm mm s s 5 os gt L Si Sar wi jui ET BE rzm oF oF R V S U omy COMPRESSOR OVERLOAD RELAY MOTOR OLR xELEC SYSTEM ASSY iG COMPRESSOR THERMISTOR REACTANCE ID O BLK 2P CONNECTOR CONTROLLER E o gt I au Ll z moms 2 tr m e n N FM FAN MOTOR WHT WHT BLK ACIN2 WH WHT si W H RED
53. 1 1 4 6 35 mm 21 32 17 mm Approx 120 160 Ibs in 140 180 kgf cm 3 8 9 52 mm 7 8 22 mm Approx 300 360 Ibs in 340 420 Insulation 1 2 12 70 mm 1 1 82 26 mm Approx 430 480 Ibs in 490 550 kgf cm AN 5 8 15 88 mm 1 5 32 29 mm Approx 590 710 Ibs in 680 820 kgf cm 5 5 Insulation of Refrigerant Tubing IMPORTANT To prevent heat loss and wet floors due to dripping of con densation both tubes must be well insulated with a proper insulation material The thickness of the insulation should be a minimum 5 16 8 mm Fig 22 Taping the flare nuts Wind the insulation tape around the flare nuts at the tube connections Secondly cover up the tubing connec tions with the flare insulation 1 8 T3 supplied Then wind the other flare insulation 3 16 T5 supplied Finally fasten the insulation at both ends with the sup plied vinyl ties Fig 23 Insulation material The material used for insulation must have good insula tion characteristics be easy to use be age resistant and must not easily absorb moisture After a tube has been insulat ed never try to bend it into a narrow curve because it can cause the tube to break or crack 17 Thickness Min min 5 16 5 16 8 mm 8 mm Fig 22 Insulation tape supplied Flare insulation 3 16 T5 supplied onm insulation 1 8 T3 supplied Gy
54. 2 9 9 8 9 22 5 8 Hod uogoeuuoo jonp useJ4 8 TA 8 1 X 2 1 v elou oq uorsuedsns 7 s o s 5 is x uod Ajddns jewog 9 Sg 8 B 1 191 0 uonoeuuoo eqni 9 Di m 55 98 1 eam seb A etp aam 38 B jenno Z 18 no m ai auy 1 o zr z 2 youd uoisuedsng veg Ze L LZ Suolsuewip Buiuedo 009 8 9 Outdoor Unit CU KE12NK1 21 3 16 3 19 32 le gt _ 10 13 16 15 32 9 r 8 pu LD 9 o 9 N E 4 n e L z E me me me sz E E i ver Wide tube service valve 28 11 32 720 2 1 8 dia 3 8 9 52 Narrow tube service valve dia 1 4 6 35 ii ii ii M f Si
55. 25 Dimensions amp Weight Indoor Unit Package Dimensions Height 13 32 290 4 1 8 105 24 13 16 630 26 3 16 665 28 178 714 26 11 16 678 6 6 0 2 7 9 7 7 3 5 4 59 0 13 1 65 0 04 Shipping Volume cu ft m Dimensions amp Weight Outdoor Unit ELKE enk Unit Dimensions 11 7 32 285 Package Dimensions Height weigh Net g Shipping DATA SUBJECT TO CHANGE WITHOUT NOTICE Weight Net Ib kg 41 3 18 7 35 3 1 Shipping Be Remarks Rating conditions are Cooling Indoor air temperature 80 F DB 67 F WB Heating Indoor air temperature 70 F DB Outdoor air temperature 95 F DB 75 F WB Outdoor air temperature 47 F DB 43 F WB 12 2 2 Major Component Specifications 2 2 1 Indoor Unit Indoor Unit Body CS KE12NB41 Control PCB CB CS KE12NB4U Control Circuit Fuse 250V 3A Q ty Dia and Length inch mm 1 D12 5 8 L5 3 4 D322 L147 LL Rating Voltage Nominal Output E Coil Resistance Ohm Ambient Temp 68 F 20 C Safety Device Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor Micro F Drain Pump Model Q ty PLD 12115ST 1 Rating Voltage Hz AC115V 60Hz Input Coil Resistance Ohm 101 10 Ambient Temp 68 F 20 C F Ye Ye S S Safty Device Type Thermal Fuse Open C 293 145 H
56. 617 E SUPPLY az 07 Ob 5 TB a es 2105 Als B BED ar Or e 2 2 u I3 zu du 5 reza Or IDI OT of mmm or OF DE HIGH PRESSURE S a MVO d SWITCH R T T 1 BLK fo o 9 FM MAGNETIC COIL RV 2421 BLK COMPRESSOR OVERLOAD RELAY FAN MOTOR 4WAY VALVE MOTOR OLR COIL WHT ili WHT xELEC SVSTEM ASSV WHT 22 WHT 37 8FA2 5251 11900 2 7 MAINTENANCE 7 1 Address Setting of the Remote Controller The address can be set in order to prevent interference between remote controllers when two 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 Fig 1 second remote controller NOTE 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 1 When the tab is removed the address is automatically set to B Fig 2 3 Press and hold the remote controller HIGH POWER button and 1 HR 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 ACL button first then release HIGH POWER and 1 HR TIMER buttons oP 1 test run appears blinking in the remote controller clock display area 4 Each time th
57. EP 2 STEP 3 STEP 1 FLAP NIGHT SETBACK If you want to circulate air without any temperature control follow these steps STEP 1 Press the MODE selector button to switch to the fan mode 98 STEP 2 55 the ON OFF operation button STEPS Press the FAN SPEED selector button to select the fan speed of your choice 9 or nare There is FAN only function at M of the S M switch NOTE on the remote controller 5 Night Setback Mode FAN SPEED MODE FLAP CD Night Setback Mode is used for saving energy NIGHT SETBACK 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 10 A In Cooling and DRY Mode and 0 When 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 z Setting temperature 2 L Press the NIGHT SETBACK button B In Heating Mode When the night setback mode is selected the air conditioner automatically lowers the temperature setting 4 F wh
58. Fig 20 4 Remove a nut and remove the float switch Fig 21 Drain pump Float switch Drain hose Clamp Fig 20 Fig 21 45 7 3 9 Remove the turbo fan and fan motor 1 Remove a nut and remove the turbo fan Fig 22 2 Remove the 2 screws and 3 nuts and remove the fan motor Fig 23 Turbo fan Nut Fan motor Fig 22 Fig 23 7 3 10 Remove the heat exchanger 1 Remove the 3 screws Fig 24 2 Remove the 3 screws Fig 25 3 Remove the heat exchanger from the main body upper section with the heat exchanger lifted Heat exchanger Screw Screw Main body upper section Screw Fig 24 Fig 25 46 8 FUNCTIONS 8 1 Operation Functions B 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 unit display Each time this button is pressed the OPERATION lamp changes color to indicate the type of operation Select the desired type of operation E 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 comfortab
59. Fig 6 2 zeide k I Supplied a Over 19 32 15mm ___ 1 1 2 23 32 13 18mm tm Full scale installation diagram printed on top of container box Fig 6 3 Suspension bolt M Nuts and washers Suspension lug used for upper and lower ind D Double nut 1 2 23 32 13 18mm e d Fig 6 4 3 4 Installing the Drain Piping 1 Prepare standard hard PVC pipe locally purchased O D 1 1 32 26 mm for the drain and use the supplied hose band to prevent water leaks Fig 6 5 2 To install the drain hose first place 1 of the 2 hose bands over the unit drain port and the other hose band over the hard PVC pipe not supplied Then connect both ends of the supplied drain hose Fig 6 5 3 On the unit drain side grasp the hose band with pliers and insert the drain hose all the way to the base e f other commercially available hose bands are used the drain hose may become pinched or wrinkled and there is danger of water leakage Therefore be sure to use the supplied hose bands When sliding the hose bands be careful to avoid scratching the drain hose e Do not use adhesive when connecting the supplied drain hose to the drain port either on the main unit or the PVC pipe Reasons It may cause water to leak from the connec tion Since the connectio
60. HIGH release ACL button first then release HIGH POWER and 1 HR TIMER TIMER buttons oP 1 test run appears blinking in the remote button controller clock displav area FANSPEED MODE 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 FLAP NIGHT SETBACK 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 TIMER OFF GJ unit in combinations of ON lamps blinking lamps and OFF lamps to Co report the existence of sensor trouble or a protective operation The 2 9 lamps blink or remain ON for 5 seconds then turn OFF for 2 seconds c Self diagnostics is completed when the buzzer sounds 3 short beeps ACL A maximum of self diagnostics reports are displayed for 5 seconds each beginning with the most recent report Following this display the Ou us lamps turn OFF In order to view the self diagnostics results again press EE A the ON OFF button again The 3 lamps remain OFF if no trouble has occurred lt IMPORTANT gt 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 51 1 Self diagnostics Lamps INDICATION ON INDOOR UNIT a OPERATION button aw OPERATION lam
61. Leaking and completely carry out repairs Only then should you recharge the refrigerant 11 8 Retro Fitting Existing Systems 11 8 1 Use of Existing Units e Never use new refrigerant R410A for existing units which use R22 This will cause the air conditioner to operate improperly and may result in a hazardous condition 11 8 2 Use of Existing Tubing e If replacing an older unit that used refrigerant R22 with a R410A unit do not use its existing tubing Instead completely new tubing must be used 68 APPENDIX Operating Instructions CS KE12NB41 amp CZ 18BT1U CU KE12NK1 CS KE18NB4UW amp CZ 18BT1U CU KE18NKU 852 6 4181 213 00 2 A 1 Panasonic Operating Instructions Split System Air Conditioner Model No Indoor Units Outdoor Units For Single use CS KE12NB41 CU KE12NK1 CS KE18NB4UW CU KE18NKU For Multiple use CU 3KE19NBU CU 4KE24NBU CU 4KE31NBU Ceiling Panel CZ 18BT1U This air conditioner uses the refrigerant R410A Multiple use is applied for the model CS KE18NB4UW only e Single use means that only one indoor unit is connected with one outdoor unit in a one unit to one unit configuration and that the remote controller s S M Switch is at the S Single position e Multiple use i e Flexi Multi system means that two or more indoor units are connected with one outdoor unit in a multiple unit to one unit configuration and that the remote controller s S M switch is at
62. MP FAILURE 2 FS FAILURE 3 CHOKED DRAIN HOSE 8512 5261 99100 1 2 If the self diagnostics function fails to operate e No indicators illuminate and the Check the indoor unit indoor fan does not rotate Check the power voltage Blown Is the fuse blown Normal Replace the controller 9 3 Checking the Indoor and Outdoor Units 1 Checking the indoor unit Replace the circuit board or the fuse Control Check items unit operation Use the remote controller to operate the The rated voltage must be present between inter unit wirings 1 and 2 unit in TEST run mode To determine Connect a 5 k ohm resistor between inter unit wirings 2 and 3 When the whether the mode is currently in voltage at both ends is measured approximately 12 to 15V DC must TEST run mode check the 3 indicator be output and the multimeter pointer must bounce once every 8 lamps on the unit If all 3 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 If there are no problems with the above then check the outdoor unit For the Test run procedure refer to the Appendix B Installation Instructions 2 Checking the outdoor unit Control Check items unit operation Apply the rated voltage between outdoor The control panel LED red must illuminate unit terminals L and N Short circuit the o
63. N only function in Multiple use of COOL DRY HEAT Model NOTE 5 Night Setback Mode Night Setback Mode is used for saving energy Press the NIGHT SETBACK button while unit is operating The Fs mark appears the display To release the night setback function press the NIGHT SETBACK button again A In Cooling and DRY Mode and When 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 L Press the NIGHT SETBACK button B In Heating Mode x only for COOL DRY HEAT Model When the night setback mode is selected the air conditioner automatically lowers the temperature setting 4 F when 30 minutes have passed after the selection was made and then another 4 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 heating is needed Setting temperature gt Press the NIGHT 30 m
64. ON OFF operation button NOTE To stop the air conditioner press the ON OFF operation button again To change the temperature setting press the temperature setting buttons and change the setting to the desired temperature STEP 4 STEP 5 NOTE NOTE STEP 2 STEP 3 STEP 1 Check that the circuit breaker on the power panel is turned on If the automatic operation settings of the unit do not meet your needs 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 heating operation gt For dehumidifying operation gt For cooling operation amp For fan only operation gt No Fan mode in Multiple use of COOL DRY HEAT Model STEP 2 To start the air conditioner press the ON OFF operation button STEP Press the TEMP setting buttons to change the temperature setting to the desired temperature Adjustable temperature range 86 F max 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 10 To stop the air conditioner press the ON OFF operation button again e Choose the best position in the room for the remote controll
65. Peak current cut off trips 17 5 or below the L1 line for 3 minutes after the start of Hz down 11 0 14 0 HEAT operation The temperature of the heat exchanger remains at Electrical t settina fi Lopsrationis or below the L2 line for 120 minutes after the start NONE ges buie eoi Miis operayon i of HEAT operation Outdoor heat i exchanger temp Ambient temp Frosting area Reverse cycle defrosting operation Compressor 1 minute after it is stopped compressor is ON Outdoor fan OFF Indoor fan OFF 4 way valve OFF Operation lamp gt Repeatedly switches between red and orange illumination Releasing of defrosting Outdoor heating exchanger temp is over 68 F 20 C Defrosting operation lasts 12 minutes maximum 2 minutes after it is stopped compressor is ON 4 way valve is ON Outdoor fan is ON NOTE If the air conditioner is turned off during the defrosting cycle it will continue defrosting and turn itself off after defrosting is completed 50 9 TROUBLESHOOTING BEFORE CALLING FOR SERVICE 9 1 Precautions before Performing Inspection or Repair After checking the self diagnostics monitor turn the power OFF before starting inspection or repair 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
66. TECHNICAL amp SERVICE MANUAL Panasonic CS KE12NB41 amp CZ 18BT1U CU KE12NK1 CS KE18NB4UW 8 CZ 18BT1U CU KE18NKU DC INVERTER SPLIT SYSTEM AIR CONDITIONER Indoor Model No Product Code No Outdoor Model Product Code No Body Panel Body Panel CU KE12NK1 1 852 361 17 CS KE12NB41 CZ 18BT1U 1 852 361 05 1 852 361 15 CU KE18NKU 1 852 361 20 CS KE18NB4UW CZ 18BT1U 1 852 361 07 1 852 361 15 Indoor Unit Outdoor Unit Panel CS KE12NB41 Body amp CZ 18BT1U Panel CS KE18NB4UW Body amp CZ 18BT1U Panel CU KE18NKU Wired Remote Controller R41 OA Option REFERENCE NO SM700880 N SAFETY PRECAUTIONS e Before doing repair work please read the N SAFETY PRECAUTIONS carefully and fully understand them The precautionary items here are divided into A Warning and 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 NCaution also have the potential for serious consequences if not performed correctly Imp
67. The length of suspension bolts must be appropriate for a distance between the bottom of the bolt and the bottom of the unit of more than 19 32 15 mm as shown in the diagram Fig 6 3 Thread the 3 hexagonal nuts locally purchased and 2 supplied washers onto each of the 4 suspension bolts as shown in the diagram Use 1 nut and 1 washer for the upper side and 2 nuts and 1 washer for the lower side so that the unit will not fall off the suspension lugs Fig 6 4 Adjust so that the distance between the unit and the ceiling bottom is 1 2 13 mm to 23 32 18 mm Tighten the nuts on the upper side and lower side of the suspension lug Fig 6 4 Hole in anchor Hole in plug Concrete Insert TIPI LA Suspension bolt M10 or 3 8 locally purchased Fig 6 1 23 5 8 600mm Ceiling opening dimensions 21 1 32 534mm Suspension bolt pitch 1 i Ea 65 3 8 SE Q ES 8 8 br i5 Ig ole NIG o E BEg 22 5 8 575mm Drain tube 2 3 32 6 5 16 6 11 16 connection port 53mm 160mm 170mm outer dia 1 1 32 26mm 9e wjE E Sio LE ad 4 19 32 117mm 1 25 32 45mm 1 3 16 30mm a Power supply port Buc tubing joint narrow tube side 01 4 0 6 35mm flared
68. air outlet flap can be removed and washed with water Be sure to always stop operation before removing the flap After washing with water allow it to dry and then remount it eenen Do not move the flap with your hands When using a footstool or the like be careful not to let it tip over 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 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 NOTE The frequency with which the filter should be cleaned depends on the environment in which the unit is used How to remove the filter 1 Slide the two latches of the air intake grille with your thumbs in the direction of the arrow to open the grille Air intake grille Ceiling Latch panel Air intake grille hinge 2 Open the air intake grille downward Air intake grille 3 Press the tabs on both sides of the air filter indicated with lt marks on the grill to release the filter and then lift and pull the filter up and out using the tabs to remove it Safety cord Air filter 4 Use a vacuum cleaner to remove light dust If there is sticky dust on the filter wash the filter in luke
69. and 4 also to disconnect the power before cleaning ES 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 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 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 jiem Do not turn the air conditioner on and off from the power mains switch Use the ON OFF operation button Do not stick anvthing into the air outlet of
70. and or Cold Air Prevention Protection during heating operation into account For this reason the value may vary from the actual heating characteristics 3 Above data represents the value when the operation frequency of a compressor is fixed 32 6 ELECTRICAL DATA 6 1 Electrical Characteristics Indoor Unit CS KE12NB41 8 CZ 18BT1U Outdoor Unit CU KE12NK1 Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 115V Single phase 60Hz Rating conditions Running amp 0 21 12 39 Power input 18 1 242 Rating conditions Indoor air temperature 80 F 26 7 C DB 67 F 19 4 C WB Outdoor air temperature 95 F 35 C DB Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 115V Single phase 60Hz Rating conditions Running amp 0 25 14 35 Power input 20 1 440 Rating conditions Indoor air temperature 70 F 21 1 C DB Outdoor air temperature 47 F 8 3 C DB 43 F 6 1 C WB 33 Indoor Unit Outdoor Unit CU KE18NKU 1 Voltage 230V Cooling CZ KE18NB4U amp CZ 18BT1U Indoor Unit Outdoor Unit Fan Motor Fan Motor Compressor 230V gt Complete Unit Performance at 230V Single phase 60Hz Rating conditions Rating conditions Heating Running amp 0 15 8 15 8 3 Power input Indoor air temperature Outdoor air temperature
71. at the 4 panel installation locations so that the panel is attached tightly to the unit Check that the wiring connectors are not caught between the unit and the ceiling panel 4 Check that the panel is attached tightly to the ceiling Fig 6 19 Atthis time make sure that there are no gaps between the unit and the ceiling panel or between the ceiling panel and the ceiling surface e lf there is a gap between the panel and the ceiling leave the ceiling panel attached and make fine adjustments to the installation height of the unit to eliminate the gap with the ceiling Fig 6 17 Refrigerant tubing joint Panel installation hole 4 locations Special screws Fig 6 18 Do not allow Indoor unit gaps c 7 x Ceiling surface Ceiling panel Fig 6 19 If the screws are not sufficiently tightened trouble such as that shown in the figure below may occur Be sure to tighten the screws securely Air leakage Air leakage from N ceiling surface BS f a gap remains between the ceiling surface and the ceiling panel even after the screws are tightened adjust the height of the unit again IL Ii CELLO AR Staining 0 Condensation water leakage djust so that there are no gaps Fig 6 20 gt 10 The height of the unit can be adjusted from the ceiling panel corner hole with t
72. ates There is trouble in the system that provides feedback of motor rotation speed from the motor to the outdoor unit controller Trouble symptom 4 Fan motor rotation speed does not change during outdoor unit operation Trouble symptom 5 Fan motor rotation speed varies excessively during outdoor unit operation Remedy for symptom 3 to 5 It is not possible to identify whether the trouble is outdoor unit controller trouble or motor trouble Therefore first replace the outdoor unit controller then if necessary replace the DC motor 58 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 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 to the application of high frequency noise to the signal wires resulting in abnormal signal pulses and malfunction Locations most susceptible to noise Trouble Correction 1 Locations near broadcast stations where there are strong electromagnetic waves 2 Locations near amateur radio short wave stations 3 Locations near electronic sewing machines and arc welding machines 2
73. 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 7 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 Remote control holder To prevent loss of the remote controller Mounting screws you can connect the remote controller 5 32 x 5 8 4 x 16 mm to the holder by passing a string through included the remote controller and attachment hole To take out the remote controller pull it forward Fig 36 22 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 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
74. drain tube Packed in the insulation SF asin 1 connection Cushion rubber e outdoor unit Remote 5 32 x 15 32 controller 1 Truss head screw Om 4x12mm Packed the Remote control 1 4 ceiling panel holder Special screw 3 16 1 9 16 5x40mm Ben 2 e Use M10 or 3 8 for suspension bolts e Suspension bolts and nuts locally purchased Full scale installation L 1 p ius diagram 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 tubing 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 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 Use insulated copper wire for field wiring Wire size varies with the total length of wiring Refer to 3 7 Wiring Instructions for details Check local electrical codes and regulations before obtaining wire Also check any specified instructions or Table 2 Narrow Tube
75. e 1 HR 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 3 ON OFF m Test run mode do MT operation il button p HIGH POWER THR g Self diagnostic mode button XE TEMP 1HR zt 1 Address setting mode CIA button gt FAN SPEED MODE 5 7 has now been selected for address setting 6 Press the ON OFF operation button on the remote controller Fig 3 Check that the beep signal received sound 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 button to cancel the blinking oP 7 display Fig 3 Changing of the second remote controller address is now completed FLAP NIGHT SETBACK ACL Reset button 38 7 2 Disconnecting and Connecting Positive Connector for Outdoor Unit L Pull the cover upward When the cover is pulled upward the lock is released with the sequence of 1 and 2 One of the two types of connectors illustrated at left is used Their basic structure is the same for each How to Disconnect 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 discon
76. e CANCEL button NOTE 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 When the ON timer and OFF timer are set to the same time the timer operates as if it is turned off 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 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 NOTE e If 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 It is 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 butto
77. e TIMER SELECT button twice to set OFF time The timer indication alone flashes and the previous set time is only displayed The display will change automatically back to show the present time after about 10 sec The present time and are displayed 3 How to set the ON time Example To start operation at 7 10 am ON TIME Present time Indication The timer indication alone flashes and the previous set time is only displayed Operation 1 Press the SET button once 2 Press the HH button until AM 7 is displayed Press the MM button until 10 is displayed 3 Press the TIMER SELECT button once to set ON time The display will change automatically back to show the present time after about 10 sec The present time and are displayed To cancel the setting press the TIMER SELECT button three times 4 How to set daily ON OFF repeat timer Example To start operation at 7 10 am and stop the air conditioner at 11 30 pm 4 40 96 Present time OFF TIME l LI CADOPM N OBE ON TIME Programmed daily ON OFF 9 10 pm 7 10 am 11 30 pm Present time ON OFF Operation Indication Set the timer ON OFF times as The present time PM 9 10 and shown in 2 and 3 ED Ca O are displayed To cancel the setting press the TIMER SELECT button
78. e 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 the section 2 pulled down Fig 7 4 Remove the strap 3 locations from the hook on the ceiling panel Fig 8 There is no strap on the indicator cover b Remove the bolt 4 locations with a washer and remove the ceiling panel Fig 9 Corner cover Indicator cover Lead wire Pull down section 2 Cover Center 1 Corner cover Screw Fig 6 Fig 7 Corner cover Bolt Strap au lt o Remove the strap from the hook Bolt Fig 8 Fig 9 41 7 3 4 Remove the indoor air temperature sensor 1 Disconnect the connector CNO8 ROOM 2P in the control box and remove the indoor air temperature sensor Fig 10 Indoor air temperature sensor CO Q Fig 10 7 3 5 Remove the power box and control box 1 Remove a screw and remove the terminal cover Fig 11 2 Remove the 2 screws and remove the po
79. e operation frequency is reduced by a certain proportion c Area Frequency increase is prohibited d 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 frequency until it is turned off 49 B Cold air prevention during heating During heating the fan speed is set to LL very low or stopped As the temperature of the indoor heat exchanger rises the fan Speed is changed to the set speed Set fan speed High At stability of operation At start of operation LL Stopped 77 Approx 104 25 40 Indoor heat exchanger temperature F C NOTE The fan speed is forcibly changed to LL beginning 30 seconds after the thermostat turns OFF At stability of operation refers to operation when the room temperature has approached the set temperature When HEAT operation starts the indoor fan is stopped until the temperature of the indoor heat exchanger reaches 68 F 20 C or higher or until the room temperature reaches 59 F 15 C or higher B Compressor discharge temperature control This function controls the operation frequency to prevent the compressor discharge temperature from rising more than a specified temperature Com
80. easurement at the outdoor controller connector for 3 in the table below the DC motor will trip and voltage output will stop approximately 10 seconds after operation is started For this reason to measure the voltage again first turn OFF the outdoor unit power then measure the voltage in Test Run mode Trouble symptom 1 The fan does not stop when the outdoor unit stops 2 Outdoor unit controller trouble Trouble symptom 2 The fan motor does not rotate when the outdoor unit is operating Diagnostic procedure Disconnect the motor connectors and measure the voltage at the DC motor connectors on the outdoor unit controller 3 locations Measurement location Normal value 1 Vs Gnd Between pin 1 and pin 4 DC 110V or more 2 Vcc Gnd Between pin 5 and pin 4 DC 14V or more 3 Vsp Gnd Between pin 7 and pin 4 After fluctuating 4 times between DC 1 0 to 4 3V 1 sec ON and DC 0 V 1 sec OFF the DC motor trips Diagnostic results All of the above measured values are normal Fan motor trouble Replace the motor Any one of the above measured values is not normal Outdoor unit controller trouble Replace the controller Reference DC motor connector pin arrangement Pin 1 Vs white Pin 2 Not used Pin 3 Not used Pin 4 Gnd black Pin 5 Vcc red Pin 6 FG blue Pin 7 Vsp yellow Trouble symptom 3 Motor rotates for some time several seconds but then quickly stops when the outdoor unit oper
81. eat Exchanger Coil Fins per inch Face Area Er DATA SUBJECT TO CHANGE WITHOUT NOTICE Indoor Unit Panel CZ 18BT1U Flap Motor Stepping Motor Model Q ty MPZN 12V 2 DC 12V Coil Resistance Ohm Each Pair of Terminal 380 7 Ambient Temp 77 F 25 C DATA SUBJECT TO CHANGE WITHOUT NOTICE 13 Indoor Unit Body CS KE18NB4UW Control PCB CB CS KE18NB4U Control Circuit Fuse 250V 3A Q ty Dia and Length inch mm 1 D12 5 8 L5 3 4 D322 L147 Model Q ty SIC 62FV D866 2 1 mE Rating Voltage Nominal Output Coil Resistance Ohm Ambient Temp 68 F 20 C Safety Device Type Thermal Fuse Over Current Protection ee Over Heat Protection Run Capacitor Micro F Drain Pump Model Q ty PLD 12230ST 1 Rating Voltage Hz AC208 to 240V 60Hz Input Coil Resistance Ohm 333 10 Ambient Temp 68 F 20 C F Yes Yes Safty Device Type Thermal Fuse Open C 293 145 Heat Exchanger Coil Aluminum Plate Fin Copper Tube DATA SUBJECT TO CHANGE WITHOUT NOTICE Indoor Unit Panel CZ 18BT1U Flap Motor Stepping Motor Model Q ty MP24ZN 12V 2 DC 12V Coil Resistance Ohm Each Pair of Terminal 380 7 Ambient Temp 77 F 25 C DATA SUBJECT TO CHANGE WITHOUT NOTICE 14 2 2 2 Outdoor Unit Outdoor Unit CU KE12NK1 Control PCB CB CU KE12NK1 Control Circuit Fuse 125V 25A Compressor DC Rota
82. em Shipping jif Fully OPEN Operating and test running the air conditioner Fully OPEN Measuring pressure and gas charging CLOSED Air purging with a vacuum pump The service port on the wide tube ser vice valve uses a Schrader core valve to access the refrigerant system Therefore be sure to use a hose con nector which has a push pin inside Fig 32 l When opening or closing the service valve stem OPen Hex use the hex wrench wrench Be sure to fullv seat the wrench before turning Fig 33 the valve m Pump Down Pump down means collecting all refrigerant gas in the System back into the outdoor unit without losing any of the gas Pump down is used when the unit is to be moved or before servicing the refrigerant circuit Pump Down Procedure Be sure to carry out pump down with the unit in Cooling mode 1 Connect the Lo side charging hose of the manifold valve to the service port on the wide tube service valve 21 Service valve External diameter of service port R410A 5 16 Fig 32 2 Using a hex wrench turn the narrow tube service valve clockwise all the way to clo
83. en 30 minutes have passed after the selection was made and then another 4 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 heating is needed Setting temperature gt 30 min Press the NIGHT SETBACK button 6 HIGH POWER Mode ON I OFF O POWER FAN SPEED MODE FLAP NIGHT SETBACK HIGH POWER mode can be used to increase the output of the indoor unit for all operation modes except automatic operation Press the HIGH POWER button while unit is operating The 7 mark appears in the display To cancel press HIGH POWER button again 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 NOTE When set to High fan speed during heating operation the fan runs at High fan speed even though the 7 mark is displayed Depending on the operating conditions the fan speed may be increased by a small amount only SPECIAL REMARKS DRY 5 Operation 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 s
84. er 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 e The display on the remote controller shows the setting temperature and not the room temperature When multiple indoor units are used and units in other rooms are already operating they will be operating with the same mode as the operating indoor units only for Multiple use of COOL DRY HEAT Model 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 desired 8 3 or 98 4 Fan Only STEP 2 STEP 3 STEP 1 If you want to circulate air without any temperature control follow these steps STEP 1 Press the MODE selector button to switch to the fan mode STEP2 55 the ON OFF operation button STEP 3 Press the FAN SPEED selector button to select the fan speed of your choice sen Mors There is no FA
85. erse flow prevention adapter 3 Solenoid valve installed adapter attached to a conventional vacuum pump Electronic scale for charging refrigerant Flare tool Bender Tools which can be com Torque wrench monly used for R22 R407C and R410A Cutter reamer Welding tool nitrogen gas cylinder Nen The above tools specifically for R410A must not be used for R22 and R407C Doing so will cause malfunction of the unit For the above vacuum pump 1 2 and vacuum pump adapter 3 those for R22 type units can be used for R410A type However they must be used exclusively for R410A and never alternately with R22 and R407C To prevent other refrigerants R22 R407C from being mistakenly charged to this unit shape and external diameter of the service port screw has been altered External diameter of service R410A 5 16 R22 R407C 1 4 11 4 Tubing Installation Procedures When the tubes are connected always apply HAB oil on the flare portions to improve the sealing of tubing The following is the HAB oil generally used Esso ZERICE 532 For details on tubing installation procedures refer to the installation manuals attached to the indoor unit and outdoor unit 64 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 exclusivel
86. flare method for connecting tubing 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 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 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 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 Do not touch the air inlet or the sharp aluminum fins of the outdoor unit You may get injured Do not sit or step on the unit you may fall down accidentally Do not stick any object into the FAN CASE EN You may be
87. floors due to water leakage Table of Contents Page ZXSAPETY PRECAUTIONS ince tte deden 2 TABLE OF CONTENTS U p a 4 1 OPERATING RANGE oomen dende td dende en 6 2 SPECIFICATIONS mit SP SCM MONS e ER 7 2 2 Major Component Specifications zieden een 13 2 3 Other Component Specifications nnee Sore ig nne 17 3 DIMENSIONAL DATA 18 4 REFRIGERANT FLOW DIAGRAM 4 1 Refrigerant 21 5 PERFORMANCE DATA 5 1 Temperature Charts eenen dette 23 52 Cooling Capacity snee ee te heads 27 5 3 Cooling Capacity Low Ambient ai e deed niee 29 54 Heating Capacity Mem Tx 31 6 ELECTRICAL DATA 6 1 Electrical Characteristics tenet en 33 8 2 Electric Wiring Diagrams wennen ate Dee Du 35 7 MAINTENANCE 7 1 Address Setting of the Remote Control Unit nennen seen ce debiet 38 7 2 Disconnecting and Connecting Positive Connector for Outdoor Unit 39 7 3 I uncduisc on Memer e 40 8 FUNCTIONS Bl Operation Adere eer ene ee rer ee ee neben 47 8 2 Protective FUNCIONS ante eeen ineens 49 9 TROUBLESHOOTING BEFORE CALLING FOR SERVICE 9 1 Precautions before Performing Inspection or Repair 51 9 2 Method Of Self DIagnoSliOS
88. ft min m h 341 579 294 500 253 430 383 651 324 551 265 450 4 89 187 19 253 81 121091 15 1316115 Power Input 1 860 250 to 1 860 2 340 270 to 2 340 Power Factor lt 208V gt Performance m ID sla BTU h 9 41 D Electrical Rating U BTU Wh SPF BTU Wh Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity Controls Temperature Control Control Unit Timer Fan Speeds Indoor Outdoor Airflow Direction Indoor Horizontal Vertical Auto Washable Ant Mold DC Twin Rotary Inverter RAT0A 2 87 1 300 Electric Expansion Valve Operation Sound Indoor Hi Me Lo dB A 44 40 36 44 40 36 Outdoor Hi dB A Refrigerant Tubing Connections Flare Type 25 75 Refrigerant Narrow tube inch mm 1 4 6 35 Tube Diameter Wide tube inch mm 1 2 12 7 Wired Remote Controller Option CZ RD515U al gt mm o N a 5 17 5 Microprocessor Thermister Wireless Remote Control Unit 24 Hour ON or OFF Timer 1 Hour OFF Timer Auto and 3 steps Auto Hi Me Lo c 01 N 11 Indoor Unit CS KE18NB4UW amp CZ 18BT1U Outdoor Unit CU KE18NKU 208V gt Individual Unit Indoor Unit z Body Panel CZ KE18NB4UW amp CZ 18BT1U CS KE18NB4UW CZ 18BT1U Unit Dimensions Height inch mm 12 5 16 313 11 5 32 283 1 9 16 40 i 24 19 32 625 22 5 8 575 24 19 32 625 24 19 32 625 22 5 8 b75 24 19 32 6
89. g 6 12 Fig 6 10b Flap Ceiling panel 3 6 1 Before Installing the Ceiling Panel 1 Remove the air intake grille and air filter from the ceiling panel m e Air intake grille hinge 8 Press on and slide the two latches of the air intake grille Fig 6 14 with your thumb in the direction shown by the arrow 1 to open the grille Figs 6 13 and 6 14 b With the air intake grille opened remove the grille hinge from the ceiling panel by sliding it in the direction shown by the arrow 2 Fig 6 15 2 Removing the corner cover and indicator cover While lightly pressing the ter of the corner cover pull up the tab for the screw hole Use the same procedure to remove the indicator cover Fig 6 16 Corner cover Uu T X XS Pull up Indicator cover l Fig 6 16 3 6 2 Installing the Ceiling Panel Temgoratylaiches 1 Hang the temporary latches on the inside of the ceil ing panel to the receptacle on the unit to temporarily Temporary latch attach the ceiling panel in place Fig 6 17 e The ceiling panel must be installed in the correct direction relative to the unit Align the REF PIPE and DRAIN marks on the ceiling panel corner with the correct positions on the unit 2 Align the panel installation holes and the unit screw holes Fig 6 18 3 Tighten the supplied special screws
90. ghtly connected When connecting each power wire to the corresponding terminal fol low 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 9 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 completely using a screwdriver b For Outdoor Unit E 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 10 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 terminal plate and fix it securely with the removed terminal screw using a screwdriver 14 Power wiring Locally purchased Clamping strap Earth screw Inter unit Conduit Fig 8 9 32 7 mm ACTUAL STRIP s ze jl SZB Fig 9 Solid wire i Loop e N 5 Insulation Fig 10 Bi For stranded wiring 1 Cut the wire end with a cutting pliers then strip the insu
91. gram U TA gt neee aa sk ON TII gt N FAN P S OFF Timer D 2 Fan speed Automatic operation A gt S 1 hour OFF Timer 1 RO pane Na hel MEDIUM s lt 5 P l ES L C gt 7 e P LOW ae Sweep indication S LLLA OPERATION WITH THE REMOTE CONTROLLER 2 Manual Operation 1 Automatic Operation only for COOL DRY HEAT Model Single use This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting Multiple use The air conditioner calculates the difference between the thermostat setting and room temperature and automatically determines the mode to operate under cooling or heating Then the air conditioner continuously operates under the mode selected at initial operation NOTE STEP 2 STEP 1 Check that the circuit breaker on the power panel is turned on Once amp mode is selected and the unit is preset by following the steps below you can have the air conditioner automatically bring the room to the desired temperature simply by pressing the ON OFF operation button STEP 1 55 the MODE selector button to STEP2 the
92. han normal Automatic and 3 step Fan Speed Auto High Medium Low NOTE 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 Automatic Restart Function for Power Failure Even when power failure occurs preset programmed operation can be reactivated once power resumes Automatic Switching between Cooling and Heating This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting This function is available only for Single use of COOL DRY HEAT Model Hot Start Heating System Right from the start the air is warm and comfortable This system prevents any cold blasts at the beginning while the heat pump is warming up or even defrosting This function is available only for COOL DRY HEAT Model Since the wired remote controller is designed to be commonly used for various air conditioners some of the functions of the wireless remote controller supplied with the indoor unit cannot be used Single use means that only one indoor unit is connected with one outdoor unit in a one unit to one unit configuration Multiple use i e Flexi Multi system means that two or more indoor units are connected with one outdoor unit in a multiple unit to one unit configuration CONTENTS FEATURES etc
93. he ceiling panel attached to an extent that does not affect the unit levelness the drain hose or other elements d 3 6 3 Wiring the Ceiling Panel and the Indicator Drain pipe side 1 Remove the 2 screws from the control box cover then open the cover Be careful that the cover does not fall 2 Connect the 5P FLAP wiring connector from the ceiling Control box panel to the connector on the control PCB in the control box Fig 6 21 Refrigerant tube side 3 Connect the 7P IND and 4P RC wiring connector from the Meron indicator to the connectors on the control PCB in the control Power box box Fig 6 21 As to how to attach the indicator cover refer to Fig 6 23 4 Be sure to use the clamps to fasten the connector wires in place Fig 6 21 Fig 6 22 5 Tighten the 2 cover screws to Ceiling panel MEA close the cover 5P FLAP wiring connector Indicator 7P IND and 4P wiring connector Check that the wiring connectors are not caught between the electrical component box and the cover lf the indicator connector is not securely connected the remote controller signal will not be received f the connectors are not connected the auto flap will not operate Be sure to connect them securely 5P FLAP 7P wiring connector
94. he optimum position during heating cooling and drying operation CONTENTS Page FEATURES ilii ai Ta t i 2 PRODUCT INFORMATION a a tee ten 2 SAFETY PRECAUTIONS ite ce trie tere 2 INSTALLATION LOCATION nonnen enen enne 3 ELECTRICAL REQUIREMENTS ierit res 3 SAFETY INSTRUCTIONS 3 NAMES OF PARES stc 4 USING THE REMOTE CONTROLLER 8 OPERATION WITH THE REMOTE CONTROLLER 9 1 Automatic Operation 9 2 Manual 9 3 Adjusting the Fan Speed 10 Al Ee eT 10 5 Night Setback 10 6 HIGH POWER 10 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 Automatic Switching between Cooling and Heating 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
95. ient CU KE12NK1 Obstacle above space is ensured for maintenance to be carried out without trouble In general the top also must be unob l p Min structed Figs 4a and 4b Q4 9 Min _ d Airintake 2 5 Srem vem provide a solid base level concrete pad concrete 2 block 4 x 1 4 10 x 40 cm beams or equal a mini E mum of 4 10 cm above ground level to reduce Min Air discharge Min i P d E humidity and protect the unit against possible water 29909 V 8 20 cm damage and decreased service life Figs 5a and 5b Ground Min 2 5 CAUTION A solid base must not cover Fig 4a the hole of the bottom plate CU KE18NKU Obstacle above e install cushion rubber under unit s feet to reduce vibra tion and noise Fig 5c Er Min e use lug bolts or equal to bolt down unit reducing vibra i B Mn em Airintake Min 4 10 cm Valve 7 2m tion and noise 8 o e install in a location where no antenna of a television or X o o s P 1 G radio exists within 10 3 m Min Air discharge Min J ez 2 5 cm 1 4 40 e Drain holes ES ES NN Ground Min 4 10 cm Fig 4b Air intake EB 57 Fig 5a Anchor bolts 4 pcs A PALA PU 22222 4 10 iri B
96. if the time indicator is not flashing 2 Press the Advance Return a button until PM 10 30 is displayed 3 Press the CLOCK button again The time indication alone flashes The time can be set in 1 minute increments Holding down the button advances the time rapidly in 10 minute increments This completes the setting of the current time 11 2 How to set the OFF time Example To stop the air conditioner at 11 00 am ma n Li D F Mie Lies O 5 AM 4 Zen LILI 04 5 199 Operation Indication 1 Press the OFF TIME setting button once 2 Press the Advance Return button until 11 00 is displayed 3 Wait a few seconds and then the setting is complete The timer indication is displayed and the present OFF time is shown The timer OFFO indication blinks The time can be set in 10 minute increments Holding down the button advances the time rapidly in 10 minute increments The timer OFFO indication stops blinking and the present time is displayed 3 How to set the ON time Example To start operation at 7 10 am ON E B P crt Li LI gt OND ON 1 70 474 74 471 U 04 5 196 Operation Indication 1 Press the ON TIME setting button once 2 Press the Ad
97. in SETBACK button SPECIAL REMARKS Power failure during operation In the event of power failure the unit will stop When the power is resumed within 8 hours the unit will restart automatically in approximately five minutes or 15 minutes in Multiple use of COOL DRY HEAT Model on AUTO mode by the remote controller Remote Controller The remote controller sends the setting condition to the air conditioner regularly at five minute intervals Remote Controller Display If the display malfunctions press the ACL button This resets the remote controller back to the initial settings Make the settings again SETTING THE TIMER 1 3 1 How to set the present time Example To set to 9 10 pm Di PM Operation Indication 1 Press the SET button three times 2 Press the HH button until PM 9 is displayed Press the MM button until 10 is displayed The time indication alone flashes The display will flash for 10 sec and automatically stop flashing except for the symbol 2 How to set the OFF time Example To stop the air conditioner at 11 30 pm OFF TIME Et 401 UI Present time Operation Indication 1 Press the SET button twice 2 Press the HH button until PM 11 is displayed Press the MM button until 30 is displayed 3 Press th
98. ion at very low outdoor temperatures due to the indoor unit being protected from ice or frost Power failure during operation n the event of power failure the unit will stop When the power is resumed the unit will restart automatically in approximately 5 minutes or 15 minutes at M position of the S M switch on AUTO mode by the remote controller Clicking Sound Clicking sound is heard from the air conditioner In heating or cooling operation any plastic parts may expand or shrink due to a sudden temperature change In this event a clicking sound may occur This is normal and the sound will soon disappear Remote Controller The remote controller sends the setting condition to the air conditioner regularly at five minute intervals SETTING THE FAN SPEED FLAP TIMER MODE NIGHT SETBACK ON TIMER lt gt P lt gt CANCEL CLOCK VV SENSOR 12H4b24H ttt 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 Temperature F Time AM PM 1 How to set the present time Example To set to 10 30 pm nn LILI SEE mb 5 Operation Indication 1 Press the CLOCK button once
99. ion button of the remote controller again to stop the test run Fig 29 4 Finally press the ACL Reset button of the remote controller to release it from Test Run mode to return to normal mode Fig 29 and oP 1 will disappear from the remote controller 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 which can be seen by opening the air intake grille IMPORTANT After the test run is completed be sure to press the ACL Reset button to return to normal mode The air condi tioner will not operate correctly if this is not done 20 AIR CONDITIONER OL E Lf Li c oro AM TITA TATA PM 00070 EO 7 OB ON I OFF O OWER HIGH POWER ON OFF operation 1HR CV IA TIMER button FAN SPEED MODE FLAP NIGHT SETBACK ACL Reset button OPERATION button OPERATION lamp B EX TIMER lamp HIGH POWER lamp REMOTE CONTROL receiver Fig 31 m Basic Functions of the Service Valves The basic functions of the service valves are given in Table 7 below Table 7 Action Narrow Tube Service Wide Tube Service Valve 2 Way Valve 3 Way CLOSED LL O ring GR Valve cap St
100. ion is in good condition if the resistance exceeds 1M ohm Probe 10 1 1 Power Supply Cord Insulation Clamp the grounding wire of power cord with the lead tester clip of the insulation resistance tester and measure the Fig 1 resistance by placing a probe on either of the two Terminal plate power wires Fig 1 Then also measure the resistance between the grounding and other power terminals Fig 1 ollella 10 1 2 Indoor Unit Clamp an aluminum plate fin or copper tube with the lead clip of the insulation resistance tester and it measure the resistance by placing a probe on each terminal screw on the terminal plate Fig 2 Clip f Note that the ground line terminal should be skipped Copper Insulation for the check tube or Oo EL tester metallic part 10 1 3 Outdoor Unit Clamp a metallic part of the unit with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw where power supply lines are connected on the terminal plate Fig 2 10 1 4 Measurement of Insulation Clip Resistance for Electrical Parts E Copper Disconnect the lead wires of the desired electric part tube or iin metallic part O from terminal plate capacitor etc Similarly disconnect the connector Then measure the insulation resistance Insulation Figs 3 and 4 iind Fig 3
101. ir conditioner automatically decides the fan speeds High fan speed 9 Medium fan speed Low fan speed NIGHT SETBACK button For details see 5 Night Setback Mode When you press this button in the HEAT DRY or COOL mode the mark appears in the display and the remote controller will automatically adjust the set temperature to save energy FLAP button Press this button either to select the setting of the airflow direction to one of the six possible positions manually or to select the sweep function which moves the flap up and down automatically The airflow direction be set manually six positions RS The flap moves up and down automatically NOTE When you press the FLAP button the air flow direction will be changed one by one as follows 1 2 3 4 6 6 7 ak SWEEP Timer and Present Time setting buttons First press the SET button to select the mode ON OFF and Present Time operation button is ON all settings are cleared settings you want Press the ACL button if the air conditioner is not Each time you press the HH button the hours advance by one operating correctly PMO PM1 PM11 AMO AM1 AM11 Each time you press the MM button the minutes advance by one when setting Present Time and by ten when setting ON and OFF Time SET button For details see SETTING THE TIMER
102. ir performance chart 131 55 122 50 113 45 104 40 95 35 86 30 77 25 68 20 23 32 4 50 59 6 5 0 5 00 15 2 Outdoor inlet air DB temp F C Indoor discharge air temperature F C e Check each performance value test run mode Electrical performance values represent a combined indoor outdoor value Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode Refer to 8 2 Protective Functions Overload prevention during heating 26 5 2 Cooling Capacity Indoor Unit CS KE12NB41 8 CZ 18BT1U Outdoor Unit CU KE12NK1 Power Supply 115V Single Phase 60Hz Cooling Capacity gt RATING CAPACITY 11 900 BTU h AIR FLOW RATE 235 CFM INDOOR OUTDOOR ENT TEMP F C AMBIENT TEMP F C 105 115 den de p 40 6 46 1 11 900 5 520 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h 1 Rating conditions f Indoor Unit Entering Air Temp 80 F 26 7 C 67 F 19 4 WB Outdoor Ambient Temp 95 F 35 C DB 2 Above data does not take Freeze Prevention Protection during cooling operation into account For this reason the value may vary from the actual cooling characteristics 3 Above data represents the value when the operation fre
103. ir 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 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 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 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
104. isplay 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 and setting the S M switch NOTE Cover closed The illustration above pictures the remote controller after the cover has been opened 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 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 USING THE REMOTE CONTROLLER HOW TO INSTALL BATTERIES TIMER ACL butto 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 press the ACL butt
105. it after it has been installed insert a flathead screwdriver into the slot on the bottom of the case and turn it Fig 5 B Installing directly onto the wall 1 Insert a flathead screwdriver into the 5 tab locations and disconnect the back plate of the remote controller by lift ing up slightly Fig 2 b The tabs are thin take care not to chip them 2 Use tapping screws to directly fasten the remote con troller back plate onto the wall Fig 6 8 Insert the connector into the PCB of the remote controller unit and wrap the wire harness around the hook Fig 4 4 Use nippers or a similar tool to cut out the slot on the top of the remote controller unit Pass the wire harness through the slot then hook the remote controller unit onto the top of the back plate and install the remote con troller unit 5 In order to conceal the exposed wiring use a wire cover locally purchased or similar means When installing the remote controller back plate be sure that it is flat and straight Do not over tighten the installa tion screws nstall the remote controller away from all sources of elec trical noise Install a noise filter or take other appropriate action if elec trical noise affects the power supply circuit of the unit In wall junction box locally purchased Wire harness In wall junction box Connect
106. l a nsv ss 3 ze 4 La i Ee OH B Ori N Grounding line Fig 7a CU KE18NKU INDOOR n OUTDOOR UNIT UNIT Y Terminal Field supply B Terminal gt n of o 30 208V D 8 l 1 8 230 208V 8 2 Loo 2 88 Q 230 208V 8 38 C 25 4 A Ba Grounding lne CA L B Ot reuring line Ca Fig 7b A disconnect switch may be required by national or local codes Always comply with national and local code requirements 13 3 9 Wiring Instructions for Inter unit Connections 1 Remove the 1 screw from the terminal cover then open the cover Be careful that the cover does not fall 2 Remove the 3 screws from the power box cover then open the cover Be careful that the cover does not fall 3 Use the screw to securely fasten the ground wire from the outdoor unit in place 4 Remove the transparent plastic cover from the 3P terminal plate 5 While viewing the wiring diagram connect the inter unit and power supply line to terminals 1 2 and 3 on the 3P terminal plate 6 Remount the transparent plastic cover onto the 3P terminal plate 7 Be sure to use the clamping strap to fasten the wires in place 8 Tighten the screws to remount the terminal and the power box cover Loose wiring may cause the ter WARNING E minal to overheat or result in unit malfunction A fire hazard may also exist Therefore be sure all wiring is ti
107. lar to those used in automobile tires Therefore be sure to use a vacuum hose connector which has a push pin inside Be sure to use a manifold valve for air purging If it is not available use a stop valve field supply for this purpose The Hi knob of the mani fold valve must always be kept closed 18 Charging hose Exclusively for R410A Vacuum pump adapter Exclusively for R410A with reverse flow prevention ado Vacuum pump Fig 27 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 capacity of the pump The following table shows the amount of time for evacuation Table 6 Required time for evacuation when 26 4 gal h 100 liter h vacuum pump is used If tubing length is less than 33 ft 10 m If tubing length is more than 33 ft 10 m 10 min or more 15 min or more With the vacuum pump still running close the Lo knob of the manifold valve Then stop the vacuum pump With the hex wrench turn the valve stem on the narrow tube service valve counter clockwise by 90 degrees 1 4 turn for 10 seconds and then turn the stem clockwise to close it again Fig 28 Be sure to completely insert the hex soapy water Bubbles indicate a leak Tighten the joint more when leaks then check if there is no leak Be sure to wipe off the
108. lation 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 8 Using a ring connector fastener or pliers securely clamp each stripped wire end with a ring connector Fig 11 4 Place the ring connector wire and replace and tighten the removed terminal screw using a screwdriver Fig 13 Special washer Screw Twist wire ends BN aD Screw and special washer Stranded wire Ring E gt Ly connector Wire Fig 11 Fig 12 Fig 13 Ring connector j Terminal plate Ring connector Strip 3 8 10 mm 4 How to Install the Outdoor Unit First refer to Section 2 Installation Site Selection Lock nut Cabinet 4 1 Wiring Instructions for the Outdoor Unit Regulations on wire size differ from locality to locality For field wiring requirements please refer to your local electrical codes Make sure that the installation o Eo fully complies with all local and national regulations block 1 Remove access panel Fig 14 2 Connect the inter unit and power supply line according to the drawing on the panel side a eo 3 Be sure to size each wire allowing approx 4 10 longer than the required length for wiring Store excess wiring inside the cabinet
109. le room environment SENSOR DRY operation DRY operation is as shown in the figure below Load COOL gt HEAT STOP COOL zone GREEN RED Lamp Off ha A zone B zone The set temperature is 4 F 2 C below the detected room temperature in the case of cooling operation and 4 F 2 C 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 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 above the room temperature in the case of heating operation The flap and fan speed settings are AUTO B AUTO cooling heating operation Selecting the operation mode When AUTO mode is selected the microprocessor calculates the difference between the set temperature and the room temperature and automatically switches to Cooling or Heating mode Room temp gt Set temp COOL Room temp Set temp HEAT As shown by the example in the figure below with AUTO cooling heating operation the mode changes between Heating and Cooling mode according to changes in the relationship betwee
110. leaking from the svstem 12 Test run the air conditioner See next page 13 While the air conditioner is running applv liquid soap to check for anv gas leaks around the service valves or caps 14 If there is no leakage stop the air conditioner 15 Wipe off the soap on the tubing This completes air purging with a vacuum pump and the air condi tioner is ready for actual operation 19 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 29 a Press and hold the HIGH POWER button and the 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 c Then release the HIGH POWER and 1HR TIMER buttons d appears and oP 1 blinking in the remote con troller clock display area Fig 30 2 Start Cooling mode test run by pressing the ON OFF operation button of the remote controller Fig 29 This starts the fan producing uncooled forced air with the 3 indicator lamps OPERATION lamp TIMER lamp and HIGH POWER lamp on the main unit blinking Fig 31 After 3 minutes the system shifts into cooling operation and cool air will start to be felt Cooling mode test run is unaffected by the room tempera ture 8 Press the ON OFF operat
111. llow 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 OF PARTS INDOOR UNIT Air Outlet 4 locations Refrigerant Tubes OUTDOOR UNIT s Drain Hose 00 Air Outlet 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 Intake 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 The remote controller controls power ON OFF Controller operation mode selection temperature fan speed timer setting and air sweeping Refrigerant The indoor and outdoor units are connected by Tubes copper tubes through which refrigerant gas flows Drain Hose Moisture in the room condenses and drains off through this hose Outdoor The outdoor unit contains the compressor fan Condensing motor heat exchanger coil and other electrical Unit components UNIT DISPLAY AND OPERATION BUTTON INDOOR UNIT OPERATION button n i
112. mer 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 daily ON OFF repeat timer The 1 Hour OFF Timer setting is given priority over the DAILY ON OFF REPEAT setting 10 ADJUSTING THE AIRFLOW DIRECTION 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 A Sweep function The flap starts moving and down to deliver 7 air over the sweep range B Setting the airflow manually Referring to the above illustration use the COOL FLAP button to set the DRY airflow direction within FAN the range used during the heating cooling or dehumidifying operation NOTE The flap automatically closes when the unit is off During the heating operation the fan speed will be very low and the flap will be in the horizontal position position until the air being blown out of the unit begins to warm Once the air warms up the flap position and fan speed change to the settings specified with the remote controller ATENI Use the FLAP button o
113. n and off 1 HR TIMER button 1 HOUR OFF TIMER EG GEKS When you press this button regardless of whether the unit is operating or stopping the unit operates for one hour and then shuts down Temperature setting buttons TEMP Press the 12 button to increase the set temperature Press the Cv 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 MODE selector button Use this button to select AUTO HEAT DRY COOL or FAN mode AUTO Q When this setting is selected the air conditioner calculates the difference between the thermostat setting and the room temperature and automatically switches to the COOL or HEAT mode as appropriate except at M of the S M switch AIR CONDITIONER HEAT Me The air conditioner makes the room warmer DRY The air conditioner reduces the humidity in the room COOL s The air conditioner makes the room cooler FAN 98 The air conditioner works only as a circulation fan except at V of the S M switch HIGH ONrI OFFO POWER NIGHT SETBACK button For details see 5 Night Setback Mode When you press this button in the ed o HEAT DRY or COOL mode the mark appears in the display and the remote controller will automatically adjust the set temperature to save energy CLOCK button Time display selector button This switches the time d
114. n before Connecting Tubes Tightly a Be sure to apply a sealing cap or water proof tape to prevent dust or water from getting into the tubes before they are used b Be sure to apply refrigerant lubricant to the match ing surfaces of the flare and union before connect ing them together This is effective for reducing gas leaks Fig 19 For proper connection align the union tube and flare tube straight with each other then screw in the flare nut lightly at first to obtain a smooth match Fig 20 Before If the special RA10A flare tool is used Y 4 Deburring After E NNSSNNNNNNNNNNNNNY Fig 15 Copper HUS tubing M JJ Fig 16 If the previous flare tool clutch type is used 0 to 0 0196 Z 0 0472 1 2 mm 0 to 0 5 mm 16 Adjust so that the amount of tube protrusion is as shown in the figure Fig 17 N Flare nut Copper We Ae tubing Flare tool Fig 18 Apply refrigerant lubricant here and here Union Flare nut Fig 20 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 Torque wrench Spanner Outdoor unit Tube Dia Nut Tightening Torque Fig 2
115. n 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 daily ON OFF repeat timer The 1 Hour OFF Timer setting is given priority over the DAILY ON OFF REPEAT setting TIPS FOR ENERGY SAVING Avoid Do 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 To prevent conditioned air from escaping keep windows doors and any other openings closed ADJUSTING THE AIRFLOW DIRECTION 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 FANSPEED C2 C FLAP NIGHT SETBACK PE 08 A Sweep function The flap starts moving U up and down to deliver 2 air over the sweep range B Setting the airflow manually Referring to the above illustration use the COOL FLAP button to set the DRY airflow directi
116. n is slippery just after the adhesive has been applied the pipe easily slips off b The pipe cannot be removed when mainte nance is needed 4 Wrap the hose with the supplied drain hose insulation and use the 4 twist ties so that the hose is insulated with no gaps e Do not bend the supplied drain hose 90 or more The hose may slip off Make sure the drain pipe has a downward gradient 1 100 or more and that there are no water traps e In cases where it is necessary to raise the height of the drain piping the drain piping can be raised to a maximum height of 2 78 ft 850 mm above the bottom surface of the ceiling Under no conditions attempt to raise it higher than 2 78 ft 850 mm above the bottom surface of the ceiling Doing so will result in water leakage Fig 6 7 e Do not use natural drainage e Do not install the pipe with an upward gradient from the connection port This will cause the drain water to flow backward and leak when the unit is not operating Fig 6 8 e Do not apply force to the piping on the unit side when connecting the drain pipe The pipe should not be allowed to hang unsupported from its connection to the unit Fasten the pipe to a wall frame or other support as close to the unit as possible Fig 6 9 e Provide insulation for any pipes that are run indoors Twist tie 4 vinyl ties supplied Drain hose insulation supplied Hard PVC pipe equivalent to Position to O D 1 1 32
117. n the current room temperature and the set temperature Example Example of operation in AUTO mode with the set room temperature PAM c control at 74 F 23 C n order to further improve inverter performance control is Switched between PWM control at low operation speeds and PAM control at high operation speeds making the most Zone B effective use of power Zone C Zone C Room temp ZoneA Set temp Zone B Zone A Compressor 47 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 lt can be set regardless of the temperature and fan speed settings 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 i Time 30 min 5 min Start End MAX 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 B Lamp colors OPERATION lamp HEAT operation DRY operation COOL operation FAN operation DEFROSTING operation OPERATION lamp TIMER lamp HIGH POWER lamp B Timer backup Red Orange Green Green Red and Orange alternately Green Green Green
118. n 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 HIGH POWER button p If this button is pressed during HEAT DRY COOL or FAN operation the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1step above HIGH FAN SPEED selector button 68 The air conditioner automatically decides the fan speeds High fan speed 9 Medium fan speed Low fan speed FLAP button 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 in a heating operation the flap is set to position 3 in the following chart If selected in a cooling or dry operation the flap is set at position 7 in the following chart airflow direction can be set manually six positions The flap moves up and down automatically NOTE When you press the FLAP button the air flow direction will be changed one by one as follows 1 2 3 4 5 6 7 8 U oN A 0 57 0 54 5 8 sweep ON TIME OFF TIME setting buttons FAN SPEED MODE FLAP NIGHT SETBACK Advance b
119. n the remote controller to adjust the position of the flap If vou move the flap bv hand the flap position according to the remote controller and the actual flap position mav 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 mav begin to form around the air vent and drip down APPENDIX D INSTALLATION INSTRUCTIONS CZ RD515U 852 6 4190 592 00 0 A 4 INSTALLATION INSTRUCTIONS Wired Remote Controller Panasonic IMPORTANT order to install this wired remote controller onto a wall mounted model the connection kit CZ RC515U or CZ RC515UA which must be purchased separately is required Once the wired remote controller is connected the wireless remote controller cannot be used B Parts supplied with the remote controller See Table 1 B Remote controller installation guidelines Installation location Mount the remote controller 3 3 to 4 9 ft 1 to 1 5 meters off the floor where it can sense the average temperature of the room Do not mount the remote controller in a place exposed to direct sunlight or where it is exposed to outside air such as near a window Do not mount the remote controller behind a curtain or other object so that it is separated from the air circula tion of the room Mount the remote c
120. nducting 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 Perform 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 e e e S Prohibit If refrigerant gas blows off during the work do not touch the refrigera
121. nect See illustration at left For the connector without the resin cover push the lock in the direction of 2 while pulling it off How to Connect In order to connect hold the resin cover of the connector and push it in Confirm the click sound for the inside lock 39 7 3 Disassembly Procedure To avoid electrical shock hazard be sure to disconnect power before attempting to disassemble the unit When a footstool etc is used for disassembling the indoor unit be careful not to fall down If you fall down you might be injured seriously 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 grill and remove the air intake grill Latch Latch Air intake grill Hinge Fig 1 Fig 2 Fig 3 7 3 2 Disconnect the connectors in the control box 1 Remove the 2 screws and remove the control box cover Fig 4 2 Disconnect the connectors CNO4 FLAP 5P CN12 RC 4P and CN13 IND 7P Fig 5 Control PCboard CN13 CN12 Screw Control box cover Fig 4 Fig 5 40 7 3 3 Remove the ceiling panel 1 Open the clamp 4 locations and remove the 2 lead wires from th
122. ng the wire from the indoor unit to the outdoor unit size of wire and wiring method etc e Each wire must be firmly connected e No wire should be allowed to touch refrigerant tubing the compressor or any moving part WARNING e To avoid the risk of electric shock each air con ditioner unit must be grounded e For the installation of a grounding device please observe local electrical codes e Grounding is necessary especially for units using inverter circuits in order to release charged electricity and electrical noise caused by high tension Otherwise electrical shock may occur e Place a dedicated ground more than 7 2 m away from other grounds and do not have it shared with other electric appliances e Be sure to connect the power supply line to the outdoor unit as shown in the wiring diagram The indoor unit draws its power from the outdoor unit Do not run wiring for antenna signal or power lines of television radio stereo telephone secu rity system or intercom any closer than 3 3 1 m from the power cable and wires between the indoor and outdoor units Electrical noise may affect the operation AWG American Wire Gauge WIRING SYSTEM DIAGRAM CU KE12NK1 INDOOR km OUTDOOR UNT eee UNIT Terminal Field supply B Terminal D oo 115V n gt ol
123. nserting the battery make sure the polarities and are correct 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 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 Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help FCC Caution To assure continued compliance fo
124. nt gas as it may cause frostbite Q 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 contaminants mix with the gas pressure will become extremely high in the refrigerating cycle which may cause a unit breakdown Prohibit 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 and incomplete installation work may cause an injury due to 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 Prohibit For the repa
125. o and 3 steps Auto Hi Me Lo c 01 N Indoor Unit CS KE18NB4UW amp CZ 18BT1U Outdoor Unit CU KE18NKU lt 230V gt Individual Unit Indoor Unit Body Panel CS KE18NB4UW amp CZ 18BT1U CS KE18NB4UW CZ 18BT1U Unit Dimensions Height inch mm 12 5 16 313 11 5 32 283 1 9 16 40 i 24 19 32 625 22 5 8 575 24 19 32 625 24 19 32 625 22 5 8 b75 24 19 32 625 Dimensions amp Weight Indoor Unit Package Dimensions Height 13 32 290 4 1 8 105 24 13 16 630 26 3 16 665 28 178 714 26 11 16 678 6 6 0 2 7 9 7 7 3 5 4 59 0 13 1 65 0 04 Shipping Volume cu ft m Dimensions amp Weight Outdoor Unit ELKE enk Unit Dimensions 11 7 32 285 Package Dimensions Height weigh Net g Shipping DATA SUBJECT TO CHANGE WITHOUT NOTICE Weight Net Ib kg 41 3 18 7 35 3 1 Shipping Be Remarks Rating conditions are Cooling Indoor air temperature 80 F DB 67 F WB Heating Indoor air temperature 70 F DB Outdoor air temperature 95 F DB 75 F WB Outdoor air temperature 47 F DB 43 F WB 10 2 1 3 Indoor Unit CS KE18NB4UW amp CZ 18BT1U Outdoor Unit CU KE18NKU Voltage Rating 208V Single Phase 60Hz Cooling Heating Total Capacity BTU h 17 500 4 000to 17 500 20 400 4 400 to 20 400 kW 5 45 1 210 5 15 60 13t06 0 10 600 6 900 Air Circulation Hi Me Lo
126. ode REMOTE CONTROLLER DISPLAY A se 86 Displayed when transmitting data Ta SET TEM P Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is shown EG Displayed when setting timer Displayed when the time display is set to 12 hour time Symbols 1 Operation mode 4 Timer AUTO EE 24 hour clock with ON OFF Y program Timer AO HEAT RR ER EE ON Timer ON a OFF Timer COOL PER 1 Timer 1 H e FAN eee esteso B NIGHT C 2 Fan speed 6 Confirmation s Automatic operation of gt Ne N HIGH nnen 7 Auto flap indication A MEDIUM Flap angle indication A 3 KI ANTI Sweep indication 23 3 Temperature setting 8 High power operation Vii 60 86 F When set to 80 F temperature indication 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 o
127. of R410A from changing never bleed the refrigerant gas into the atmosphere while transferring the refrigerant Fig 3 Do not use the refrigerant if the amount in the charging cylinder is less than 20 66 Configuration and characteristics of cylinders Single valve Charge liquid refrigerant with cylinder in up side down position A Fig 1 Valve Single valve with siphon tube Charge with cylinder in normal position Fig 2 Charging cylinder Refrigerant cylinder Fig 3 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 to locate points of leaks and carry out repairs then recharge the refrigerant 1 Detecting Leaks Use the detector for R410A to locate refrigerant leak points 2 Recovering refrigerant Never release the gas to the atmosphere recover residual refrigerant using the refrigerant recovery unit for R410A instead Do not reuse the recovered refrigerant because its composition will have been altered 3 Welding leaking points Confirm again that no residual refrigerant exists in the unit before starting welding Weld securely using flux and wax for R410A Prevent oxide film from forming inside the tubes utilizing substitution with nitrogen N2 in the refrigerant circuit of the unit Leave ends of tubes
128. old 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 the optional wired remote controller SPECIFICATIONS For Single use Outdoor Unit Indoor Unit CU KE12NK1 CS KE12NB41 Power Source Single phase 115 V 60 Hz Cooling Capacity 3 50 0 90 3 50 BTU h 11 900 3 000 11 900 A W 4 00 0 90 4 00 Heat t BTU h 13 600 3 000 13 600 1 A Model No k k Cooling Outdoor Hi st 4 el Operation Operation Indoor H M L 34 32 31 Sound Heating Outdoor Hi dB A 4 el Operation Indoor H M L 35 34 32 S 21 9 16 28 11 32 10 7 16 11 5 32 22 5 8 22 5 8 Unit Dimensions HxWxD inch mm 548x720x265 283x575x575 Net Weight Ibs kg 77 2 85 0 35 3 16 0 For Single use Model No OutdoorUnt indoorUmt CU KE18NKU CS KE18NB4UW Power Source Single phase 208 230 V 60 Hz Cooling Capacity 5 15 1 20 5 15 BTU h 17 500 4 000 17 500 Heating Capacity 6 00 1 30 6 00 BTU h 20 400 4 400 20 400 Es ueri Operation Operation Sd Heng nn nn Operation indoo HIMIL CN 44 Unit Dimensions HxWxD ies 26 3 8x34 21 32x11 7 32 11 5 32x22 5 8x22 5 8 Indoor unit Include panel inch mm 670x880x285 283x575x575 Net Weight Ibs kg 97 0 44 0 35 3 16 0 CZ 18BT1U Model No Ceiling Panel 1 9 16x24 19 32x24 19 32
129. ole in the wall to prevent rain and draft from entering Fig 26 6 Air Purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below Therefore they must be purged completely pressure in the system rises operating current rises cooling or heating efficiency drops e moisture in the air may freeze and block capillary tubing e water may lead to corrosion of parts in the refrigerant system E Air Purging with a Vacuum Pump for Test Run 1 Check that each tube both narrow and wide tubes between the indoor and outdoor units have been proper ly connected and all wiring for the test run has been completed Note that both narrow and wide tube service valves on the outdoor unit are kept closed at this stage 2 Using an adjustable wrench or box wrench remove the valve caps from the service valve on both narrow and wide tubes 3 Connect a vacuum pump and a manifold valve with pressure gauges to the service port on the wide tube service valve Fig 27 Pressure gauge ii Drain hose Insulated tubes Apply putty here Fig 25 Tubing Fig 26 Indoor unit Outdoor unit Manifold valve Exclusively for R410A p The service port on the wide tube service valve uses a Schrader core valve to access the refrigerant system The valve core is simi
130. on 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 n replacing batteries follow the instructions as mentioned in the subsection HOW TO INSTALL BATTERIES f 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 ee Information for Users on Collection and Disposal of Old Equipment and used Batteries Information on Disposal in other Countries outside the European Union These symbols are only valid in the European Union If you wish to discard these items please contact your local authorities or dealer and ask for the correct method of disposal Note for the battery symbol bottom two symbol examples This symbol might be used in combination with a chemical symbol In this case it complies with the requirement set by the Directive for the chemical involved 9 Be Pb S M Single Multiple switch Initially the S M switch is set to S Single Set this switch to M Multiple for multiple operation Always press ACL button by a thin object such as the tip of a pen after set
131. on of the remote controller again to stop the test run Fig 9 4 Finally press the ACL Reset button of the remote controller to release it from Test Run mode to return to normal mode Fig 9 and oP 1 will disappear from the remote controller clock display area Troubleshooting In the event that the green OPERATION lamp is blink ing upon powering up the system an error condition exists In this case refer to the self diagnostics proce dure which can be seen by opening the air intake grille IMPORTANT After the test run is completed be sure to press the ACL Reset button to return to normal mode The air conditioner will not operate correctly if this is not done 40 PM Et ON OFF operation button NIGHT SETBACK button 1 HR TIMER button AL MR 1 0 M ACL Reset SENSOR button button Fig 9 OPERATION button OPERATION lamp oS EX TIMER lamp HIGH POWER lamp REMOTE CONTROL receiver Fig 11 WIl1011 0 Printed in China DC1111 0
132. on within FAN the range used during the heating cooling or dehumidifying operation C Auto flap function The flap is set AN to the VV recommended position NOTE The flap automatically closes when the unit is off During the heating operation the fan speed will be very low and the flap will be in the horizontal position position until the air being blown out of the unit begins to warm Once the air warms up the flap position and fan speed change to the settings specified with the remote controller 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 13 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 Press the button and select the lamp color that suits your preference for operation Cooling
133. ons 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 When Wiring 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 wiring may cause over heating at connection points and a possible fire hazard To prevent possible hazards from insulation failure B the unit must be grounded When Transporting Be careful when picking up and moving the indoor and out door units Get a partner to help and bend vour knees when lifting to reduce strain on vour back Sharp edges or thin alu minum fins on the air conditioner can cut vour fingers When Installing Select an installation location which is rigid and 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
134. ontroller inside the room being air conditioned Switching the room temperature sensor Table 1 Parts Figure Q ty Parts Figure Q ty 26 2 ft 8 Wired Wire remote a leanings 1 controller nn 5 32x 15 16 Machine 4x25mm 2 Instruction 1 screws goa manual 5 32x 15 16 Tapping 4x25mm Installation 2 1 screws Qe Instructions Qe Spacers 8 2 Room temperature sensors are separatelv incorporated in both the indoor unit and the remote controller Either sensor can be used to sense the room temperature The indoor unit sensor is usually used If vou wish the remote controller to sense the room temperature press the SENSOR button with a ballpoint pen or tool with a small tip Refer to Fig 9 on page 4 to locate the SENSOR button B How to install the remote controller IMPORTANT The remote controller is set to Cool Dry Heat model at the time of shipment from the factory If the purchased air conditioner is a COOL DRY model follow the instructions on the label and change the switch on the reverse side of the remote controller unit to Cool Dry model Fig 1 The remote controller is also set to Single at the time of shipment from the factory For multiple use set the Switch on the reverse side of the remote controller unit to Multi Fig 1 After all work is completed if any switches have been changed then be sure to press the ACL Reset
135. open during welding 4 Checking for sealing Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas 5 Evacuation Use a solenoid valve installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption the valve will prevent the pump oil from flowing back The equipment may be damaged if moisture remains in the tubing thus carry out the evacuation thoroughly e When using a vacuum pump with exhaust air volume more than 0 883 cu ft min and ultimate vacuum pressure rate of 50 micron Hg Standard time for evacuation 1 Detect leaks OK Y 2 Recover refrigerant OK Y 3 Weld leaking points OK 4 Check for sealing 5 Evacuation 6 Recharge Length of tubing Less than 33 ft 10 m More than 33 ft 10 m More than 10 minutes More than 15 minutes 6 Recharging e Recharge unit in the same manner explained on the previous page 5 Recharging 67 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 AN Never charge additional refrigerant if refrigerant is leaking from the unit Follow instructions given in 11 6 In Case Refrigerant is
136. operation green Heating Stop operation red lamp off NOTE The temperature is set to the room temperature minus 4 F during the cooling operation and to the room temperature plus 4 F during the heating operation and the fan speed and flap are set to Auto 14 CARE AND CLEANING Cleaning and maintenance operations must be carried out by specially trained personnel While working in high places slipping or falling may result in serious injury 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 Ceiling panel Indoor Unit Clean the ceiling panel of the indoor unit with a vacuum cleaner brush or wipe it with a clean soft cloth If it is stained use a clean cloth moistened with a mild liquid detergent When cleaning it be careful not to force the flaps out of place e Never use solvents or harsh chemicals Nemo when cleaning the indoor unit Do not wipe the plastic casing using very hot water Some metal edges and the fins are sharp and may cause injury if handled improperly be especially careful when you clean these parts The internal coil and other components of the outdoor unit must be cleaned every year Consult your dealer or service center Cleaning the flaps The
137. or Fig 4 nM P Opening 4 4 E a se BO ab og 2 x PU In e 2 3 8 Ne k 60mm 1 plate Fig 2 a Fig 2 b from the indoor unit Machine SCrews DS Remote controller Fig 3 Hook uc Back plate Remote controller Fig 6 B How to wire the remote controller Celing SP FLAP 1 Turn OFF the power and remove the ceiling panel panel 9901 7P IND and 4P RC nector wiring connector air intake grille Refer to 3 6 1 Before Installing the ifa Ceiling Panel in the Installation Instructions supplied cel with the indoor unit u Remove the 3 power box cover screws and 2 control box cover screws then remove both covers At this time take care not to drop the covers Fig 7 Disconnect the 7P IND terminal 4 RC termi 500107 nal of the 7P IND and 4 RC wiring connectors and H RQ the 5P terminal of the 5P FLAP wiring connector JE from the control box PCB connectors IND RC Remove the ceiling panel remove the ceiling panel follow the steps for 3 6 How to Install the Ceiling Panel in the reverse order Refer to the Y er box cover FLAP Disconnect each wiring connector from the Indicator clamp that fastens it Fig 7 EE Fig 7 Fig
138. or Hi dB A Refrigerant Tubing Connections Flare Type 25 7 5 Refrigerant Narrow tube inch mm 1 4 6 35 Tube Diameter Wide tube inch mm 3 8 9 52 Wired Remote Controller Option CZ RD515U L u gt N o 20 Microprocessor Thermister Wireless Remote Control Unit 24 Hour ON or OFF Timer 1 Hour OFF Timer Auto and 3 steps Auto Hi Me Lo Fuse or Circuit Breaker Capacity 20 c EN N EN Indoor Unit CS KE12NB41 amp CZ 18BT1U Outdoor Unit CU KE12NK1 Individual Unit Indoor Unit 5 Body Panel CS KE12NB41 amp CZ 18BT1U CS KE12NB41 CZ 18BT1U Unit Dimensions Height inch mm 12 5 16 313 11 5 32 283 1 9 16 40 i 24 19 32 625 22 5 8 575 24 19 32 625 24 19 32 625 22 5 8 b75 24 19 32 625 Dimensions amp Weight Indoor Unit Package Dimensions Height 13 32 290 4 1 8 105 24 13 16 630 26 3 16 665 28 178 714 26 11 16 678 6 6 0 2 7 9 7 7 8 5 4 59 0 13 1 65 0 04 Shipping Volume cu ft m Dimensions amp Weight Outdoor Unit OLE ANI Unit Dimensions Height i i 10 7 16 265 Package Dimensions Height i i i Weight Net kg Shipping Ib kg DATA SUBJECT TO CHANGE WITHOUT NOTICE Weight Net Ib kg 41 3 18 7 35 3 1 Shipping Remarks Rating conditions Cooling Indoor air temperature 80 F DB 67 F WB Heating Indoor air tempera
139. ortant safety precautions are described for all items in both categories Be sure to carefully follow all of them Symbol Indication This symbol indicates items to which we need to pay attention In this triangle a definite precautionary item is described This symbol indicates the item 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 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 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 co
140. p Pet FA TIMER lamp G HIGH POWER lamp JK L BLINKING 35 OFF TIMER CODE HIGH 0 POWER DIAGNOSIS CONTENTS POSSIBLE MALFUNCTION S01 ROOM TEMP SENSOR TROUBLE S02 I D HEAT EXCHANGER TEMP SENSOR TROUBLE 1 OPEN OR SHORT CIRCUIT IN SENSOR 2 POOR CONTACT AT CONNECTOR OR OPEN CIRCUIT AT TERMINAL PRESS FIT LOCATION 3 I D PCB FAILURE I D INDOOR S04 COMPRESSOR TEMP SENSOR TROUBLE S05 O D HEAT EXCHANGER TEMP SENSOR TROUBLE O D AIR TEMP SENSOR TROUBLE O D CURRENT SENSOR ERROR 1 OPEN OR SHORT CIRCUIT IN SENSOR 2 POOR CONTACT AT CONNECTOR OR OPEN CIRCUIT AT TERMINAL PRESS FIT LOCATION 3 O D PCB FAILURE O D OUTDOOR O D PCB FAILURE X D O D COMMUNICATION TROU BLE SERIAL COMMUNICATION TROUBLE MIS WIRING 2 AC POWER FAILURE 3 BLOWN FUSE POWER RELAY FAILURE 5 I D 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 CIRCUIT TROUBLE POWER TR CIRCUIT TROUBLE HIC OR POWER TR FAILURE 2 O D FAN NOT OPERATING INSTANTANEOUS POWER STOPPAGE 4 SERVICE VALVE NOT OPENED O D FAN BLOCKED 6 CONTINUOUS OVERLOAD OPERATION COMPRESSOR FAILURE 8 O D PCB FAILURE DE O D UNIT EXTERNAL ROM TROUBLE 1 EXTERNAL ROM DATA FAILURE 2 O D PCB FAILURE CURRENT PEAK CUT INSTANTANEOUS POWER STOPPAGE
141. peed automatically runs at lower speed for providing a comfortable breeze DRY operation is not possible if the indoor temperature is 59 F or less Heating Operation Heating performance Because this air conditioner heats a room by drawing in the heat of the outside air heat pump system the heating efficiency will fall off when the outdoor temperature is very low If sufficient heat cannot be obtained with this air conditioner use another heating appliance together with it Defrosting When the outdoor temperature is low frost or ice may form on the heat exchanger coil reducing heating performance When this happens a microcomputer defrosting system operates At the same time the fan on the indoor unit stops and the OPERATION lamp lights red and orange alternately until defrosting is completed Heating operation restarts after several minutes This interval will vary slightly depending upon the outdoor temperature and the way in which frost forms Cold draft prevention For several minutes after the start of heating operation the indoor fan runs at a lower speed until the indoor heat exchanger coil has warmed up sufficiently However the fan may remain stopped when the room temperature is low This is because the COLD DRAFT PREVENTION SYSTEM is in operation Cooling operation Sometimes the indoor unit may not get to the set fan speed such as LOW under cool operat
142. pressor discharge temperature F C A Area Automatic capacity control When the temperature rises above Point A the operation frequency is reduced at a specified rate Area Further frequency increase is prohibited When the temperature falls below Point B prevention of a rise in frequency is released and the air conditioner operates as in a area The compressor will stop if the temperature of the compressor discharge exceeds 248 F 120 C due to shortage of gas or other reason E Defrost detection and release CT Peak current cut off control e Reverse Cycle Defrosting 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 decrease the power supply voltage In these cases operation frequency is reduced or operation is interrupted auto matically to control the electrical current for operation 5 m When the cause of the increase in electrical current is rectified EE the system will resume operation the original mode gating operation lt CS KE12NB41 gt A Outdoor fan ON Cooling Dry Heating 4 way valve ON Peak current cut off trips 22 5 Hz down 14 0 15 0 Defrost detection occurs in either of the following cases Cooling Dry Heating The temperature of the heat exchanger remains at
143. quency of a compressor is fixed 27 Indoor Unit CS KE18NB4UW amp CZ 18BT1U Outdoor Unit CU KE18NKU Power Supply 230V Single Phase 60Hz lt Cooling Capacity gt RATING CAPACITY 17 500 BTU h AIR FLOW RATE 341 CFM INDOOR OUTDOOR ENT TEMP F C AMBIENT TEMP F C WB 65 75 85 95 105 115 18 3 23 9 29 4 35 0 40 6 46 1 12 830 1 9 400 59 15 0 172 63 67 71 19 4 217 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h 1 Rating conditions f Indoor Unit Entering Air Temp 80 F 26 7 C DB 67 F 19 4 C WB Outdoor Ambient Temp 95 F 35 C DB 2 Above data does not take Freeze Prevention Protection during cooling operation into account For this reason the value may vary from the actual cooling characteristics 3 Above data represents the value when the operation frequency of a compressor is fixed 28 5 3 Cooling Capacity Low Ambient Indoor Unit CS KE12NB41 8 CZ 18BT1U Outdoor Unit CU KE12NK1 Power Supply 115V Single Phase 60Hz lt Cooling Capacity Low Ambient gt RATING CAPACITY 11 900 BTU h AIR FLOW RATE 235 CFM INDOOR OUTDOOR ENT TEMP F C AMBIENT TEMP F C WB 0 5 15 25 35 45 55 17 8 15 0 94 329 1 7 7 2 12 8 T 59 15 0 63 17 2 67 19 4 n 21 7 TC Total Cooling Capacity BTU h SHC Sensible Heat Capaci
144. r E o 2 Press Set in 1 place d u Mounting Screws e To prevent loss of the remote 5 32 x 5 8 controller vou can connect the 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 WHEN HOLDING THE REMOTE CONTROLLER When using the remote controller and during air conditioner operation the transmitter on the remote controller should be pointed towards the receiver on the indoor unit Make sure that there are no objects between the remote controller and receiver which could block the signal OPERATION WITH THE REMOTE CONTROLLER 2 Manual Operation 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 When the remote controller s S M switch is at the Multiple position Unlike when the switch is at the S position as described above the function for automatically switching between cooling and heating does not work Then the air conditioner calculates the difference between the thermostat setting and room temperature and automatically determines the mode to operate under cooling or heating Then the air conditioner continuously operates under the mode selected a
145. r 9 4 1 Indoor Fan Motor e This indoor 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 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 The fan does not stop when the unit stops 2Indoor unit controller trouble Trouble symptom 2 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 Normal value CS KE12NB41 CS KE18NB4UW 1 Vm Gnd Between pin 1 and pin 3 DC 130V to 195V DC 280V to 340V 2 Vcc Gnd Between pin 4 and pin 3 DC 15V 10 3 Vs Gnd Between pin 5 and pin 3 Fluctuation between DC 1 8V to 5 7V
146. r disconnecting mean to isolate the air conditioner 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 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 A Do not touch the air inlet or the sharp aluminum fins y of the outdoor unit You may get injured CY 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 You may fall down D accidentally Do not stick any object into the FAN CASE You may be injured and the unit may be damaged A NOTICE e Confirm to authorized dealer or specialist on usage of specified refrigerant tvpe Using of refrigerant other than the specified tvpe mav cause product damage burst and injurv etc e Never touch the unit with wet hands Never use or
147. rom the drain pan Put a bucket etc under the drain cap and remove the drain cap to drain the water Fig 16 2 Refer to the installation instructions for recovery of refrigerant or removal of the power cable or tubing 7 3 6 Remove the main body lower section 1 Remove the 4 screws Fig 16 2 Remove the 2 screws Fig 17 3 Disconnect the connector CNO3 DCM 6P in the power box Fig 18 4 Lift the main body lower section and remove it from the main body upper section Screw UM CI o Drain cap nes 5 Main body lower section 9 Main body lower section 2 22 m NO Screw Screw Fig 16 Main body lower section RK e Main body 5 upper section Screw Fig 17 Fig 18 44 7 3 7 Remove the heat exchanger sensor 1 Remove the heat exchanger sensor from the sensor holder Fig 19 4 7 3 8 Remove the drain pump and float switch Er Heat exchanger sensor Holder 4 Fig 19 1 Remove the 2 screws Fig 20 2 Loosen the clamp and disconnect the drain hose from the drain pump Fig 20 3 Remove the drain pump from the main body upper section
148. ry Hermetic Compressor Model Nominal Output G4CO90LU1ER 900W Compressor Oil Amount Pints cc FV50S 0 68 320 Coil Resistance Ambient Temp 68 F 20 C Ohm Safety Device CT Peak current cut off control Yes Compressor Discharge Temp Control Yes Yes Operation cut off control in abnormal ambient Temp Overload Relay Operation Temp Open 239 F 115 C Close 203 F 95 C Run Capacitor ji VAC 115V 20W Q ty Dia inch mm 1 D15 3 4 D400 Coil Resistance Ohm RED WHT 77 5 Ambient Temp 68 F 20 C WHT BLU 77 5 BLU RED 77 5 Safety Device Type Internal Controller Over Current Protection Run Capacitor Micro F o VC S ESES Heat Exchanger Coil Coi mm Fins per inch Face Area Fm External Finish S Acrylic baked on enamel finish DATA SUBJECT TO CHANGE WITHOUT NOTICE Outdoor Unit CU KE18NKU Control PCB CB CU KE18NKU Control Circuit Fuse 250V 25A Compressor DC Twin Rotary Hermetic Compressor Model Nominal Output C 6RVN93HO0M 1 050W Compressor Oil Amount Pints cc FV508 0 74 350 Coil Resistance Ambient Temp 68 F 20 C Ohm R S 0 482 S T 0 482 T R 0 482 Safety Device CT Peak current cut off control Yes Compressor Discharge Temp Control Yes Yes Operation cut off control in abnormal ambient Temp Yes Overload Relay Operation Temp Open 239 F 115 C Close 203
149. se the service valve Be sure to confirm that the wide tube service valve is fully open ation Press the operation button and start cooling oper When the low pressure gauge reading falls to 14 2 to 7 1 psi 1 to 0 5 kg em fully close the wide tube valve stem Then quickly stop the unit Disconnect all gauges and hoses and replace the valve caps as they were before B Service Valve Connections a Temporary connection Screw in 5 turns by hand Fig 34 b To fasten the flare nuts apply specified torque as Table 8 and Fig 35 Table 8 5 Fig 34 Tube Dia Nut Tightening Torque 1 4 6 35 mm 21 32 17 mm Approx 120 160 Ibs in 140 180 kgf cm 3 8 9 52 mm 7 8 22 mm Approx 300 360 Ibs in 340 420 kgf cm 1 2 12 70 mm 1 1 82 26 mm Approx 430 480 Ibs in 490 550 kgf cm 5 8 15 88 mm 1 5 32 29 mm Approx 590 710 Ibs in 680 820 kgf cm Torque wrench 7 Remote Controller Installation Position Fig 35 The remote controller can be operated from either a non fixed position or a wall mounted position Be sure to tighten the flare nut To ensure that the air conditioner operates correctly do CAUTION g using the prescribed torque If the not install the remote controller in the following places nut is over tightened refrigerant In direct sunlight leakage may occur Behind a curtain or other place where it is
150. store gasoline or other flammable vapor or liquid near the air conditioner it is very dangerous e 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 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 is no guarantee that interference will not occur in a particular installa
151. t initial operation hee B OK STEP 2 FAN SPEED STEP 1 FLAP NIGHT SETBACK Check that the circuit breaker on the power panel is turned on NOTE Once mode is selected and the unit is preset by following the steps below you can have the air conditioner automatically bring the room to the desired temperature simply by pressing the ON OFF operation button STEP 1 55 the MODE selector button to STEP2 55 the ON OFF operation button To stop the air conditioner press the ON OFF operation button again To change the temperature setting press the temperature setting buttons and change the setting to the desired temperature NOTE AM LEE LI ON 1 OFF O POWER STEP 2 STEP 3 FAN SPEED MODE STEP 4 STEP 1 FLAP NIGHT SETBACK STEP 5 NOTE Check that the circuit breaker on the power panel is turned on If the automatic operation settings of the unit do not meet your needs 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 heating operation gt For dehumidifying operation For cooling operation gt For fan only operation gt No FAN mode at M of the S M switch on the remote controller 19 STEP 2
152. the M Multiple position Refer to USING THE REMOTE CONTROLLER on page 8 Before operating the unit read these operating instructions thoroughly and keep them for future reference Panasonic Corporation 1006 Kadoma Kadoma City Osaka Japan 85264181213002 CV6233187655 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 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 saves energy by controlling operation to provide a quieter operating sound than normal Automatic and 3 step Fan Speed Auto High Medium Low 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 Auto Flap Control This automatically sets the flap to t
153. 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 In Moist or Uneven Locations Keep the fire alarm and the air outlet at least 1 5 m away from the unit Use a raised concrete pad or concrete blocks to provide a solid level foundation for the outdoor unit This prevents water damage and abnormal vibration In an Area with High Winds Securely anchor the outdoor unit down with bolts and a metal frame Provide a suitable air baffle In a Snowy Area for Heat Pump type Systems Install the outdoor unit on a raised platform that is higher than drifting snow Provide snow vents 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 Use the
154. the outdoor unit This is dangerous because the fan is rotating at high speed A Do not touch the air inlet or the sharp aluminum fins of the outdoor unit You may get injured CR 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 You may fall down S accidentally Do not stick any object into the FAN CASE You may be injured and the unit may be damaged A NOTICE Confirm to authorized dealer or specialist on usage of specified 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 e 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 i
155. the room temperature and the temperature setting When the remote controller s S M switch is at the Multiple position Unlike when the switch is at the S position as described above the function for automatically switching between cooling and heating does not work Then the air conditioner continuously operates under the mode selected at initial operation Hot Start Heating System Right from the start the air is warm and comfortable This System prevents any cold blasts at the beginning while the heat pump is warming up or even defrosting Automatic Restart Function for Power Failure Even when power failure occurs preset programmed operation can be reactivated once power resumes High Power Operation If not in Auto Operation the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High Page SPECIAL REMARKS 11 SETTING THE TIMER reete venne 11 USING THE 1 HOUR OFF TIMER 13 TIPS FOR ENERGY SAVING 13 ADJUSTING THE AIRFLOW DIRECTION 13 OPERATION WITHOUT THE REMOTE CONTROLLER 14 CARE AND CLEANING 14 TROUBLESHOOTING BEFORE CALLING FOR SERVICE 16 OPERATING RANGE nnee neer aaa TE aA REEE 16 WIRED REMOTE CONTROLLER
156. ting the S M switch NOTE When multiple indoor units are used and units in other rooms are already operating they will be operating with the same mode as the operating indoor units HOW TO USE THE REMOTE CONTROLLER When using the remote controller always point the unit s transmitter head directly at the air conditioner s receiver Air Conditioner Indoor unit Receiver Remote Controller Transmitter B head REMOTE CONTROLLER INSTALLATION POSITION The remote controller may be operated either from a non fixed position or from 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 places where it is covered More than 26 ft 8 m away from the air conditioner n 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 noise 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 CONTROLLER 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 Remote Control Holde
157. tion 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 Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected 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 REMOTE CONTROLLER NOTE The descriptions on the AUTO or HEAT amp operation mode are only for the COOL DRY HEAT Model and not for the COOL DRY Model Display Information on the operating conditions is displayed while the remote controller is switched on If the unit is turned off only the mode that was set previously is still displayed Temperature setting buttons TEMP Press the button to increase the set temperature Press the GI button to reduce the set temperature The temperature setting changes by 2 F each time one of the TEMP buttons is pressed FAN SPEED selector button 68 The a
158. ture 70 F DB Outdoor air temperature 95 F DB 75 F WB Outdoor air temperature 47 F DB 43 F WB 2 1 2 Indoor Unit CS KE18NB4UW amp CZ 18BT1U Outdoor Unit CU KE18NKU Voltage Rating 230V Single Phase 60Hz Cooling Heating Total Capacity BTU h 17 500 4 000to 17 500 20 400 4 400 to 20 400 kW 515 1 2105 15 60 13t06 0 10 600 6 900 Air Circulation Hi Me Lo ft min m h 341 579 294 500 253 430 383 651 324 551 265 450 4 89 18710 253 B3 121083 105 1310108 Power Input 1 860 250 to 1 860 2 340 270 to 2 340 Power Factor 230V gt Electrical Rating Performance U o co NI co NI m ID sle BTU h D BTU Wh SPF BTU Wh Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity Controls Temperature Control Control Unit Timer Fan Speeds Indoor Outdoor Airflow Direction Indoor Horizontal Vertical Auto Washable Ant Mold DC Twin Rotary Inverter RAT0A 2 87 1 300 Electric Expansion Valve Operation Sound Indoor Hi Me Lo dB A 44 40 36 44 40 36 Outdoor Hi dB A Refrigerant Tubing Connections Flare Type 25 75 Refrigerant Narrow tube inch mm 1 4 6 35 Tube Diameter Wide tube inch mm 1 2 12 7 Wired Remote Controller Option CZ RD515U L u gt 17 5 Microprocessor Thermister Wireless Remote Control Unit 24 Hour ON or OFF Timer 1 Hour OFF Timer Aut
159. ture sensor inside the remote controller senses the room temperature SENSOR button When you press this button use a small tipped object such as a ballpoint pen the mark will disappear at the display And the room temperature is detected by the sensor which is built into the remote controller and the air conditioner is controlled accordingly NOTE 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 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 DISPLAY Displayed when indoor unit sensor is in use Displayed when operating NIGHT SETBACK mode Displayed when setting temperature R Displayed when temperature is shown Displayed when setting timer Symbols 1 Operation mode 3 Temperature setting 60 86 AUTO tar en a d A When set to 80 F temperature indication HEAT iei vn only for COOL DRY HEAT p Model d 4 Timer Er MILD DRY 24 hour clock with ON OFF ea U pro
160. ty BTU h NOTE 1 Above data does not take Freeze Prevention Protection during cooling operation into account For this reason the value may vary from the actual cooling characteristics 2 Above data represents the value when the operation frequency of a compressor is fixed 29 Indoor Unit CS KE18NB4UW amp CZ 18BT1U Outdoor Unit CU KE18NKU Power Supply 230V Single Phase 60Hz lt Cooling Capacity Low Ambient gt RATING CAPACITY _ 17 500 BTU h AIR FLOW RATE 341 CFM INDOOR OUTDOOR ENT TEMP F C AMBIENT TEMP F C WB 0 5 15 25 35 45 55 17 8 150 94 329 1 7 7 2 12 8 TC 13 430 13 510 9 740 9 800 59 15 0 63 17 2 67 19 4 n 21 7 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h NOTE 1 Above data does not take Freeze Prevention Protection during cooling operation into account For this reason the value may vary from the actual cooling characteristics 2 Above data represents the value when the operation frequency of a compressor is fixed 30 5 4 Heating Capacity Indoor Unit CS KE12NB41 8 CZ 18BT1U Outdoor Unit CU KE12NK1 Power Supply 115V Single Phase 60Hz Heating Capacity RATING CAPACITY 13 600 BTU h AIR FLOW RATE 268 CFM OUTDOOR INDOOR ENT TEMP F C AMBIENT TEMP F C 15 6 18 3 21 1 23 9 26 7 TH Total Heating Capacity BTU h UJ 0 17 8 3 16
161. ure is too low for heating 1 Clean air filter to improve airflow 2 Eliminate heat source if possible 3 Shut them to keep the heat or cold out 4 Remove it to ensure good airflow 5 Set the temperature lower or higher 6 Consult your dealer or try to use another heat appliance Clicking sound is heard from the air conditioner In heating or cooling operation any plastic parts may expand or shrink due to a sudden temperature change In this event a clicking sound may occur This is normal and the sound will soon disappear OPERATION lamp lights but outdoor unit will not run The use of cellular phones near the air conditioner may cause disturbance to its normal operation 1 Turn off the power then restart the air conditioner after a while 2 Consult your dealer TIMER lamp blinks 8 sec interval and air conditioner does not operate FLOAT SWITCH is actived Contact service center 16 OPERATING RANGE The air conditioner is operable within the temperature ranges as listed below Temperature Indoor air Outdoor air temperature temperature COOLING Max 95 F DB 115 F DB 71 F WB Min 67 F DB For Single use 57 F WB 0 F DB For Multiple use 14 F DB HEATING Max 80 F DB 75 F DB 67 F WB 65 F WB Min DB WB DB 0 F WB WIRED REMOTE CONTROLLER A separately s
162. utdoor unit COM terminal The compressor fan motor and 4 way valve must all turn on to the T RUN terminal If there are no problems with the above then check the indoor unit Using the 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 53 3 Serial Communication Error Identification Procedure If the lamps on the main body show the following conditions after the completion of self diagnostics 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 Diagnostics for the self diagnostics procedure Operation Timer High Power X A T Blinking lt Before the Operation gt N EEI For terminal strip short circuit work or inter unit wiring removal turn off the power to avoid an electric shock Release the terminal strip short circuit after the completion of self diagnostics Do not perform the short circuit work between anv other terminals except for specified ones on the specified terminal strip If such work is performed between the incorrect terminals the unit might be broken AN easton r i l i Convenient Tool for Short Circuit Work for example gt Cable Alligator Clip Alligator Clip 1
163. utton Return button 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 ON TIMER OF CANCEL button SENSOR button 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 NOTE 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 ADDRESS switch e The address switch changes to prevent mixing of signals from remote controllers when two air conditioners are installed next to each other Normally the address switch is set Temperature display selector button to A For more information please contact the dealer where you made the purchase This switches the temperature display Normally the tabs on the remote controller should not be bent between C and F Sensor A temperature sensor inside the remote controller senses the room temperature ON OFF operation button This button is for turning the air conditioner o
164. vance Return w button until AM 7 10 is displayed 3 Wait a few seconds and then the setting is complete The timer indication is displayed and the present ON time is shown The timer ON GJ indication blinks The time can be set in 10 minute increments Holding down the button advances the time rapidly in 10 minute increments The timer indication stops blinking and the present time is displayed 12 4 How to set daily ON OFF repeat timer Example To start operation at 7 10 am and stop the air conditioner at 11 00 am Lt Li ON OY OFF PM 694 42 5 es Fe F jue 10 30 pm 11 00 am Present time OFF Operation Indication 1 Set the timer ON OFF times as shown in 2 1 2 3 and 3 1 2 3 The present time 10 30 pm and KO OFO are displayed NOTE The ON OFF combination timer uses the current time as the reference and it is activated starting from whichever set time comes first With the ON OFF combination timer the settings are repeated every day You can check the timer ON OFF times after you have set them by pressing the ON TIME and OFF TIME setting buttons To cancel a timer program Press the CANCEL button 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 th
165. warm soapy water rinse it in clean water and dry it 5 Insert the filter correctly again inside the grille close the grille letting the latches slide towards the outside and fix again the latch How to remove the air intake grille 1 2 3 4 NE Open the air intake grille Detach the safety cord from the frame remember to attach it again after cleaning or maintenance Hold on the air intake grille and pull it towards you to detach the two air intake grille hinges Clean the grille gently using a soft sponge or the like Then dry it with care Neutral detergent may be used to remove stubborn dirt Then rinse thoroughly with water and dry it Air intake grille hinge Safety cord When cleaning the air filter never remove the safety cord If it is necessary to remove it for servicing and maintenance inside be sure to reinstall the safety cord securely hook on the grille side after the work When the air intake grille has been opened rotating parts such as the fan electrically charged areas etc will be exposed in the unit s opening Bear in mind the dangers that these parts and areas pose and proceed with the work carefully Periodically check the outdoor unit to see if the air outlet or air intake is clogged with dirt or soot Care After a prolonged idle period Check the indoor and outdoor unit air intakes and outlets for blockage if there is a blockage remove it Care Before a
166. wer box cover Fig 11 3 Disconnect the power lines No 1 and No 2 signal line No 3 and ground cable from the terminals in the power box Fig 12 Terminal cover TA a SNS Screw Aih SES IN e Power box cover edt T ER Terminal EN lt Na Zz KA Ground cable Power lines Signal line 4 Disconnect the connector CNO7 DP 2P in the power box Fig 13 Remove a screw and disconnect the ground cable Fig 13 Remove the 4 screws and remove the power box Fig 14 Disconnect the connectors CNO6 FS and CNO9 COIL 1 2P in the control box Fig 15 Screw ex Ground cable IS 1 2 3 oop 4 For the removal of the following components perform any work after removing the indoor unit main body from the ceiling Main body lower section Heat exchanger sensor Drain pump Float switch Turbo fan Fan motor Heat exchanger 1 Perform the work after draining the water to prevent the water leakage f
167. wiring connector into the connector FLAP on the control box PCB Fig 8 a 11 When the connections are completed fasten the wire harness and each wiring connector with the clamps 12 Install the power box cover and control box cover 13 Install the air intake grille Refer to 3 6 How to Install the Ceiling Panel in the Installation Instructions supplied with the indoor unit B 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 9 a Press and hold the NIGHT SETBACK button and the 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 c Then release the NIGHT SETBACK and 1HR TIMER buttons d sk appears and oP 1 blinking in the remote controller clock display area Fig 10 2 Start Cooling mode test run by pressing the ON OFF operation button of the remote controller Fig 9 This starts the fan producing uncooled forced air with the 3 indicator lamps OPERATION lamp TIMER lamp and HIGH POWER lamp on the main unit blinking Fig 11 After 3 minutes the system shifts into cooling operation and cool air will start to be felt Cooling mode test run is unaffected by the room tempera ture 8 Press the ON OFF operation butt
168. y 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 in thickness since air conditioners with R410A are subject to higher pressure than those using R22 and R407C No addition of compressor oil for R410A No additional charge of compressor oil is permitted No use of refrigerant other than R410A Never use a refrigerant other than R410A If refrigerant R410A is exposed to fire Through welding etc toxic gas may be released when R410A refrigerant is exposed to fire Therefore be sure to provide ample ventilation during installation work Caution in case of R410A leak Check for possible leak points with the special leak detector for R410A If a leak occurs inside the room immediately provide thorough ventilation 63 11 3 Tools Specifically for R410A For servicing use the following tools for R410A Tool Distinction Tool Name Gauge manifold Charging hose Gas leak detector Refrigerant cylinder Charging cylinder Refrigerant recovery unit Tools specifically for R410A Vacuum pump with anti reverse flow 1 Solenoid valve installed type which prevents oil from flowing back into the unit when the power is off is recommended e Vacuum pump 2 can be used if the following adapter is attached Vacuum pump adapter rev
169. y for R410A See 11 3 Tools Specifically for R410A 11 5 1 Procedure for Replacing Compressor 1 Recovering refrigerant Any remaining refrigerant inside the unit should not be released to the atmosphere but recovered using the refrigerant recovery unit for R410A Do not reuse the recovered refrigerant since it will contain impurities 2 Replacing Compressor Soon after removing seals of both discharge and suction tubes of the new compressor replace it quickly 3 Checking for sealing Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas 4 Evacuation Use a solenoid valve installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption the valve will prevent the pump oil from flowing back e The equipment may be damaged if moisture remains in the tubing thus carry out the evacuation thoroughly e When using a vacuum pump with exhaust air volume more than 0 883 cu ft min and ultimate vacuum pressure rate of 50 micron Hg Standard time for evacuation 1 Recover refrigerant OK K 1 i Y 2 Replace compressor Y 3 Check for sealing OK 4 Evacuation OK 5 Recharge Length of tubing Less than 33 ft 10 m More than 33 ft 10 m Evacuation time More than 10 minutes More than 15 minutes 65 5 Recharging e

Download Pdf Manuals

Related Search

Related Contents

Hunter Fan 33118 Humidifier User Manual  3 - Maisonic  ==!"§==Com=    貸出用検査器具関係書類    

Copyright © All rights reserved. Failed to retrieve file