Instruction/ maintenance manual of the product CU-KE12NK1 Panasonic
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TECHNICAL & SER VICE MANU AL CS-KE12NB41 & CZ-18BT1U + CU-KE12NK1 CS-KE18NB4UW & CZ-18BT1U + CU-KE18NKU DC INVER TER SPLIT SYSTEM AIR CONDITIONER Indoor Unit Outdoor Model No.
• Before doing repair work, please read the " SAFETY PRECA UTIONS" carefully and fully understand them. • The precautionary items here are divided into " W arning" and " Caution" items.
W arning If refrigerant gas blows off during the work, do not touch the refrigerant gas as it may cause frostbite . If refrigerant gas leaks during the wor k, 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.
T able of Contents SAFETY PRECA UTIONS T ABLE OF CONTENTS 1. OPERA TING RANGE 2. SPECIFICA TIONS 2-1. Unit Specifications 2-2. Major Component Specifications 2-3. Other Component Specifications 3. DIMENSIONAL D A T A 4. REFRIGERANT FLO W DIA GRAM 4-1.
10. CHECKING ELECTRICAL COMPONENTS 10-1. Measurement of Insulation Resistance 10-2. Checking Continuity of Fuse on PCB Ass'y 11. REFRIGERANT R410A: SPECIAL PRECA UTIONS WHEN SER VICING UNIT 11-1. Characteristics of New Refrigerant R410A 11-2. Checklist bef ore Ser vicing 11-3.
95 °F DB / 71 °F WB 67 °F DB / 57 °F WB 80 °F DB / 67 °F WB – DB / – WB 1. OPERA TING RANGE Maximum Minimum Maximum Minimum 115 °F DB 0 °F DB 75 °F DB / 65 °F WB – DB / 0 °F WB T emperature Indoor Air Intake T emp. Outdoor Air Intake T emp.
2. SPECIFICA TIONS 2-1. Unit Specifications Indoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 2-1-1. V er tical dB-A dB-A Indoor : Hi/Me/Lo Outdoor : Hi Air Filter Compressor Refrigerant / Amount charged at shipment Ibs (g) Refrigerant Control 12.
Indoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 D A T A SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are: Cooling: Indoor air temperature 80 °F DB / 67 °F WB Outdoor .
< 230V > Indoor Unit CS-KE18NB4UW & CZ-18BT1U Outdoor Unit CU-KE18NKU 2-1-2. V er tical dB-A dB-A Indoor : Hi/Me/Lo Outdoor : Hi Air Filter Compressor Refrigerant / Amount charged at shipment Ibs (g) Refrigerant Control 8.3 1,860 ( 1.2 to 8.
Indoor Unit CS-KE18NB4UW & CZ-18BT1U Outdoor Unit CU-KE18NKU D A T A SUBJECT TO CHANGE WITHOUT NOTICE. Shipping V olume Net Shipping W eight I b . (kg) Ib .
Indoor Unit CS-KE18NB4UW & CZ-18BT1U Outdoor Unit CU-KE18NKU < 208V > 2-1-3. V er tical dB-A dB-A Indoor : Hi/Me/Lo Outdoor : Hi Air Filter Compressor Refrigerant / Amount charged at shipment Ibs (g) Refrigerant Control 9.1 1,860 ( 1.2 to 9.
Indoor Unit CS-KE18NB4UW & CZ-18BT1U Outdoor Unit CU-KE18NKU D A T A SUBJECT TO CHANGE WITHOUT NOTICE. Shipping V olume Net Shipping W eight I b . (kg) Ib .
Indoor Unit (Body) CS-KE12NB41 Indoor Unit (P anel) CZ-18BT1U 2-2. Major Component Specifications 2-2-1. Indoor Unit MPZN-12V .. . 2 Flap Motor T ype Stepping Motor Rating Model ... Q'ty Coil Resistance Oh m (Ambient T emp . 77 °F (25 °C)) Each P air of T er minal : 380 +/- 7% DC 12V PLD-12115ST -1 .
Indoor Unit (Body) CS-KE18NB4UW Indoor Unit (P anel) CZ-18BT1U MP24ZN-12V .. . 2 Flap Motor T ype Stepping Motor Rating Model ... Q'ty Coil Resistance Oh m (Ambient T emp . 77 °F (25 °C)) Each P air of T er minal : 380 +/- 7% DC 12V Aluminum Plate Fin / Copper T ube 2 18.
2-2-2. Outdoor Unit Control PCB Control Circuit Fuse Controls P ar t No. Microprocessor 125V 25A CB-CU-KE12NK1 D A T A SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) WHT - BLU : BLU - RED : RED - WHT : 77.5 77.5 77.5 Micro F VA C External Finish Acr ylic baked-on enamel finish FV50S .
Outdoor Unit CU-KE18NKU Control PCB Control Circuit Fuse Controls P ar t No. Microprocessor 250V 25A CB-CU-KE18NKU D A T A SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) WHT - BLU : BLU - RED : RED - WHT : 77.5 77.5 77.5 Micro F VA C External Finish Acr ylic baked-on enamel finish FV50S .
2-3. Other Component Specifications Indoor Unit CS-KE12NB41 & CZ-18BT1U CS-KE18NB4UW & CZ-18BT1U Outdoor Unit CU-KE12NK1 CU-KE18NKU 0 32 50 68 86 104 122 140 158 176 194 (0) (10) (20) (30) (40.
3. DIMENSIONAL D A T A Indoor Unit CS-KE12NB41 & CZ-18BT1U CS-KE18NB4UW & CZ-18BT1U 6-5/16 6-11/16 1-3/16 (30) 4-19/32 1-25/32 1-25/32 2-3/32 8-15/32 22-5/8 (575) 11-5/32 (283) 3 6 5 Less than.
10-13/16 3-19/32 ID:23/32 4-ID:15/16 21-3/16 6-3/32 4-9/32 2-5/32 Narrow tube service valv e dia.1/4" (6.35) Wide tube service valve dia.3/8" (9.
Narrow tube service valv e dia.1/4" (6.35) Wide tube service valve dia.1/2" (12.70) 4-3/8 2-5/32 6-17/32 5-23/32 3/32 26-3/8(670) 23/32 1-13/16 34-21/32(880) 23-15/16 5-11/32 15/32 11-7/32(2.
Compressor Accumulator Wide tube service valv e Wide tube Narrow tube service valv e Narrow tube Heat exchanger Heat exchanger Muffler Capillary tube for split flow Cooling cycle (Defrosting cycle) Heating cycle Indoor unit Outdoor unit Electric expansion valv e Strainer Strainer M Muffler O.
Compressor 4-wa y valv e Accumulator High pressure switch Wide tube service valv e Wide tube Narrow tube service valv e Narrow tube Heat exchanger Muffler Capillary tube for split flow Cooling cycle (Defrosting cycle) Heating cycle Indoor unit Outdoor unit Electric expansion valv e Strainer M O.
Hi F an Lo F an Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 115V) (1) Low pressure perf ormance char t (2) Operating current perf or mance char t (3) Indoor discharge air perf or mance char t Check each perf ormance value in test-run mode.
High pressure at wide tube service valve psig(MP aG) Operating current (A) 13 14 16 17 12 11 15 290 (2.0) 218 (1.5) 363 (2.5) 435 (3.0) 508 (3.5) 23 ( - 5) 32 (0) 41 (5) 50 (10) 59 (15) 68 (20) 77 (25.
• Check each perf ormance value in test-run mode. Electr ical performance values represent a combined indoor/outdoor v alue. NO TE Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60.
• Check each perf ormance value in test-run mode. Electr ical performance values represent a combined indoor/outdoor v alue. • Overload pre vention operates to protect the air conditioner when outdoor ambient temperature becomes e xtremely high in heating mode.
5-2. Cooling Capacity Indoor Unit : CS-KE12NB41 & CZ-18BT1U Outdoor Unit : CU-KE12NK1 P ower Supply : 115V Single Phase 60Hz < Cooling Capacity > TC : T otal Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h) 1. Rating conditions (#) : Indoor Unit Entering Air T emp.
Indoor Unit : CS-KE18NB4UW & CZ-18BT1U Outdoor Unit : CU-KE18NKU P ower Supply : 230V Single Phase 60Hz < Cooling Capacity > TC : T otal Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h) 1. Rating conditions (#) : Indoor Unit Entering Air T emp.
5-3. Cooling Capacity (Low Ambient) Indoor Unit : CS-KE12NB41 & CZ-18BT1U Outdoor Unit : CU-KE12NK1 P ower Supply : 115V Single Phase 60Hz < Cooling Capacity (Low Ambient) > TC : T otal Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h) 1.
Indoor Unit : CS-KE18NB4UW & CZ-18BT1U Outdoor Unit : CU-KE18NKU P ower Supply : 230V Single Phase 60Hz < Cooling Capacity (Low Ambient) > TC : T otal Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h) 1. 2. Above data represents the v alue when the operation frequency of a compressor is fix ed.
5-4. Heating Capacity Indoor Unit : CS-KE12NB41 & CZ-18BT1U Outdoor Unit : CU-KE12NK1 P ower Supply : 115V Single Phase 60Hz < Heating Capacity > TH : T otal Heating Capacity (BTU/h) 1. Rating conditions (#) : Indoor Unit Entering Air T emp.
Indoor Unit : CS-KE18NB4UW & CZ-18BT1U Outdoor Unit : CU-KE18NKU P ower Supply : 230V Single Phase 60Hz < Heating Capacity > TH : T otal Heating Capacity (BTU/h) 1. Rating conditions (#) : Indoor Unit Entering Air T emp. 70 °F (21.1 °C) DB : Outdoor Ambient T emp .
6. ELECTRICAL D ATA 6-1. Electrical Characteristics Indoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor + Compressor Performance at 115V Single-phase 60Hz Rating conditions Running amp.
Indoor Unit CZ-KE18NB4U & CZ-18BT1U Outdoor Unit CU-KE18NKU Indoor Unit Outdoor Unit Fan Motor Fan Motor + Compressor Performance at 230V Single-phase 60Hz Rating conditions Running amp. A 0.15 Power input W A W A W A W 22 8.15 1,838 Rating conditions: Indoor air temperature: 80 °F (26.
6-2. Electric Wiring Diagrams Indoor Unit CS-KE12NB41 & CZ-18BT1U CS-KE18NB4UW & CZ-18BT1U 8F A2-5250-46900-2 1 2 3 4 5 6 1 2 3 4 5 6 FM DP F AN MOT OR DRAIN PUMP DCM 6P (BLU) 6P (WHT) DP 3P (.
8F A2-5251-12200-2 Outdoor Unit CU-KE12NK1 36.
8F A2-5251-11900-2 Outdoor Unit CU-KE18NKU 25A CONTROLLER DCFM MV0 RV 0 RV 1 F AN MOT OR 1 2 3 4 5 6 7 BLK WHT RED BLU YEL BLK WHT RED BLU YEL BLK BLK RED RED w w w w w w w w w w 1 2 3 4 5 5 1 2 4 3 1.
ACL (Reset) button 1HR. TIMER button ON/OFF operation button HIGH POWER button T est run mode Self-diagnostic mode Address setting mode Fig. 1 Fig. 2 Fig.
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 cov er , and pull the connector off . Y ou cannot disconnect the connector by pulling the wire since it is lock ed inside.
7-3. Disassembly Pr ocedure 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 downw ard the air intake grill located on the latch side. (2) Undo the air intake grill drop pre ventiv e hook.
NO TE 7-3-3. Remo ve the ceiling panel. (1) Open the clamp (4 locations) and remov e the 2 lead wires from the clamps. (Fig. 6) (2) Remov e the 4 screws fixing the corner cov er (at 3 locations) and indicator cover (at 1 location). (Fig. 6) (3) Press the center 1 of the cov er and remov e the cov er with the section 2 pulled down.
1 2 3 7-3-4. Remove the indoor air temperature sensor . (1) Disconnect the connector CN08 (ROOM 2P) in the control bo x and remov e the indoor air temperature sensor . (Fig. 10) 7-3-5. Remo ve the power bo x and control bo x. (1) Remov e a screw and remo ve the terminal cover .
12 3 (4) Disconnect the connector CN07 (DP 2P) in the power bo x. (Fig. 13) Remov e a screw and disconnect the ground cab le. (Fig. 13) (5) Disconnect the connector CN03 (DCM 6P) in the power bo x. (Fig. 14) (6) Remov e the 4 screws and remo ve the power bo x.
F or the remov al of the follo wing components, perf or m any work after removing the indoor unit (main body) from the ceiling. Main body lower section Heat exchanger sensor Drain pump Float s witch T urbo fan F an motor Heat e xchanger 1. P erform the wor k after draining the w ater to prev ent the water leakage from the drain pan.
7-3-7. Remo ve the heat exchanger sensor . (1) Remov e the heat exchanger sensor from the sensor holder . (Fig. 19) 7-3-8. Remo ve the drain pump and float switch. (1) Remov e the 2 screws (Fig. 20) (2) Loosen the clamp and disconnect the drain hose from the drain pump .
7-3-9. Remo ve the turbo fan and fan motor . (1) Remov e a nut and remov e the turbo f an. (Fig. 22) (2) Remov e the 2 screws and 3 nuts , and remov e the fan motor . (Fig. 23) 7-3-10. Remo ve the heat exchanger . (1) Remov e the 3 screws . (Fig. 24) (2) Remov e the 3 screws .
Emergency operation SENSOR DR Y A UT O cooling/heating operation Selecting the operation mode During DR Y operation, the system adjusts the room temperature and f an speed according to the conditions in the room, in order to maintain a comf or table room environment.
HIGH PO WER NIGHT SETB A CK Lamp colors Timer backup This function acts to raise the power but keeps the AC system in the same operating mode. This function is set with the HIGH PO WER button on the remote controller . (It can be set regardless of the temperature and f an speed settings.
Overload prevention during heating During HEA T operation, the temperature of the indoor heat e xchanger is used to control the frequency and lessen the load on the compressor bef ore the protective de vice is activated.
This function pre vents the circuit breaker or fuse from operating to open the circuit. This function works when electrical current has increased due to an increase in the cooling / heating load, or to a decrease in the power supply v oltage.
< Clock displa y > T est run mode Self-diagnostics mode 9. TR OUBLESHOO TING (BEFORE CALLING FOR SER VICE) 9-1. Precautions before P erf orming Inspection or Repair NO TE After checking the self-diagnostics monitor , tur n the power OFF bef ore star ting inspection or repair .
Since the indications cover various units, the corresponding parts listed below may not be present in some models. (1) Self-diagnostics Lamps (1) DRAIN PUMP F AILURE (2) FS F AILURE (3) CHOKED DRAIN HOSE 8512-5261-99100-1 REMO TE CONTROL receiver OPERA TION lamp TIMER lamp OPERA TION button HIGH PO WER lamp INDOOR UNIT TIMER LAMP BLINKING (3 SEC .
(2) If the self-diagnostics function fails to operate Check the indoor unit. Is the fuse blown? Replace the controller . Replace the circuit board or the fuse. No indicators illuminate and the indoor f an does not rotate. Check the po wer v oltage. • • Nor mal Blown 9-3.
(3) Serial Communication Err or Identification Procedure Ref er to "Method of Self-Diagnostics" for the self-diagnostics procedure . (3-1) Condition: E01 < Before the Operation > If th.
What is the latest self-diagnosis result ? Condition: E12 Defect in the outdoor unit P .C. board. Condition: E01 Defect or connection error in the inter-unit cable Defect in the indoor unit P .C. board ( Continued from the pre vious page A. ) A ( Continued from the pre vious page B.
(3-2) Condition: E12 T roubleshooting Serial Communication 1. T ur n 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 str ip . (Fig.
[T rouble symptom 3] Motor rotates for some time (se veral seconds), b ut then quickly stops, when the indoor unit operates. (There is trouble in the system that pro vides feedbac k of motor rotation speed from the motor to the indoor unit controller .
9-4-2. Outdoor F an Motor This outdoor DC f an motor contains an inter nal control PCB. Theref ore, it is not possible to measure the coil resistance, and the f ollowing procedure should be used to chec k the motor . P erf or m the trouble diagnosis b y T est Run mode descr ibed on Installation Instructions.
9-5. Noise Malfunction and Electromagnetic Interference An inv er ter A/C operates using pulse signal control and high frequencies. Therefore , it is susceptible to the eff ects of external noise, and is lik ely to cause electromagnetic interference with nearb y wireless devices .
Insulation tester Probe Clip Ground wire T er minal plate Copper tube or metallic par t Clip Insulation tester Probe Fig. 1 Fig. 2 Fig. 3 Fig. 4 Copper tube or metallic par t Clip Insulation tester Probe Clip Insulation tester Probe Metallic par t F rom fan motor , compressor and other par ts 10.
Fuse PCB Ass'y Fig. 5 Fig. 6 Fuse 10-2. Checking Continuity of Fuse on PCB Ass'y Remov e the PCB Ass'y from the electrical component bo x. Then pull out the fuse from the PCB Ass'y . (Fig. 5) Check f or continuity using a multimeter as sho wn in Fig.
11. REFRIGERANT R410A: SPECIAL PRECA UTIONS WHEN SER VICING 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-azeotr opic refrigerant mixture .
T ubing precautions Refrigerant R410A is more easily affected b y dust or moisture compared with R22, thus be sure to temporarily cov er the ends of the tubing with caps or tape prior to installation. Ne ver use 0.0276" (0.7 mm)-thic k copper tubing or tubing which is less than 0.
11-3. T ools Specifically f or R410A For servicing, use the following tools f or R410A Gauge manif old Charging hose Gas leak detector Refrigerant cylinder Charging cylinder Refrigerant recov er y uni.
11-5. In Case of Compressor Malfunction CA UTION Should the compressor malfunction, be sure to make the switch to a replacement compressor as quickl y as possible. Use only the tools indicated e xclusively f or R410A. See "11-3. T ools Specifically for R410A.
V alve Single valve Charge liquid refrigerant with cylinder in up-side-down position. Single valve (with siphon tube) Charge with cylinder in normal position. Liquid V alve Liquid Charging cylinder Open Refrigerant cylinder Liquid NO! CA UTION Never char ge a lar ge amount of liquid refrigerant at once to the unit.
Length of tubing Evacuation time Less than 33 ft. (10 m) More than 10 minutes More than 33 ft. (10 m) More than 15 minutes 11-6. In Case Refrigerant is Leaking CA UTION Never attempt to char ge additional refrigerant when refrigerant has been leaking from the unit.
11-7. Charging Additional Refrigerant 11-7-1. When T ubes are Extended Obser v e the proper amount of refr igerant as stated in this service manual or the installation manual that came with the indoor unit. Charge additional refrigerant in liquid state only .
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Operating Instructions CS-KE12NB41 & CZ-18BT1U + CU-KE12NK1 CS-KE18NB4UW & CZ-18BT1U + CU-KE18NKU (852-6-4181-213-00-2) APPENDIX A A-1.
Split System Air Conditioner Model No. Panasonic Corporation 1006 Kadoma, Kadoma City, Osaka, Japan 85264181213002 Indoor Units CS-KE12NB41 CS-KE18NB4UW Outdoor Units (For Single use) CU-KE12NK1 CU-KE.
2 FEA TURES This air conditioner is a n inverter type u nit that automaticall y adjusts ca pability as appropriate. Details on these functions are provided be low; ref er to these descriptions when using the air conditioner .
3 INST ALLA TION LOCA TION • W e recommend that this air conditioner be installed properl y by qualified ins tallation technicians in accor dance with the Installation Instr uctions pr ovided with the unit.
4 NAMES OF P AR TS This illustr ation is based on the e xternal view of a standa rd model. Consequently , the shape ma y differ from th at of the air conditioner which y ou hav e selected. This air conditioner consists of an i ndoor unit and an outdoor unit.
5 REMO TE CONTROLLER (DISPLA Y) (1) Operation mod e A U T O ........... ................ .......... HEA T .................. ................ .... MILD DR Y .... ................... ....... COOL ........... ................ .......... F AN ...........
6 REMO TE CONTROLLER T ransmitter When you press the buttons on t he remote controller , the mark appears i n the displa y to transmi t the setting ch anges to the recei ver in the air conditioner . Display Inf or mation on the oper ating conditions is di splay ed while the remote controller is s witched on.
7 Sensor A temperature sensor ins ide the remote controller senses the room temperature . (Co ver closed ) CLOCK button A CL button (ALL CLEAR) Puts the remote controller into pre-ope rati on status. Alwa ys press this button after replacing the batteries and setting the S/M s witch.
8 USING THE REMO TE CONTROLLER HO W T O INST ALL BA TTERIES 1. Slide the co ver in the d irection indicated by the arrow and remo ve it. 2. Install two AAA alkaline batteries. Mak e sure the batteries point in the direction marked in t he batte r y compar tment.
9 OPERA TION WITH THE REMO TE CONTROLLER 1. A utomatic Operation When the remote co ntroller’ s S/M swit ch is at the “S” (Single) position This unit automatically s witches between cooli ng operation and heating operation acc ording to the differen ce between the room temperature and the temper ature setting.
10 3. Adjusting the Fan Speed A. A utomatic fan speed Simply set the F AN SPEED selector button to the position. This automatically sets th e best fan speed for the room temperature. B. Manual fa n speed If you w ant to adjust fan speed manually during operati on, just set the F AN SPEED selector bu tton as desired.
11 • When the HIGH POWER button is pressed, the unit operates at maximum output f or 30 minutes , regardless of the desired temperature . The fan speed is 1 step abov e “High”. • HIGH POWER Mode cannot be used when the operation mode is in A utomatic Oper ation.
12 2. How to set the OFF time (Example) T o stop the air conditioner at 11:00 am. 3. How to set the ON time (Example) T o star t operation at 7:10 am. 4. How to set dail y ON/OFF repeat timer (Example) T o star t operation at 7:10 a m. and stop the air conditioner at 11:00 am.
13 USING THE 1-HOUR OFF TIMER 1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop, regar dless of whether the unit is on or off when this button is pressed. The indicator in the displa y i ndicates that this function is operating.
14 OPERA TION WITHOUT THE REMO TE CONTROLLER If you ha ve lost the remote control ler or it has trouble, f ollow the steps below . When the air conditioner is not running Each time the OPERA TION bu tton is pr essed, the type o f operation conducted is indicated b y the changing color of the OPERA TION lamp .
15 Air filter The air f ilter collects dust an d other par ticles from the ai r and should be cleaned once ev er y 6 months . If the fil ter gets bloc ked, the eff iciency of the air conditioner drops greatly . The frequency with which the f ilter should be cleaned depends on the en vironment in which the unit is used.
16 TR OUBLESHOO TING (BEFORE CALLING FOR SER VICE) If your air co nditioner does not work properly , f irst check the f ollow ing points bef ore requesting service.
17 SPECIFICA TIONS Model No. • F or Single use • F or Single use Outdoor Unit Indoor Unit CS-KE12NB41 CU-KE12NK1 11,900 [ 3,000 ~ 11,900 ] 47 Single-phase, 115 V , 60 Hz 3.
18 SPECIFICA TIONS (CONTINUED) Model No. • F or Multiple use • F or Multiple use Heating Capacity Operation Sound Unit Di m ensions (H×W×D) Net W eight P ower Source Cooling Capacity kW BTU/h kW BTU/h inch( mm ) lbs.
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INST ALLA TION INSTRUCTIONS CS-KE12NB41 & CZ-18BT1U + CU-KE12NK1 CS-KE18NB4UW & CZ-18BT1U + CU-KE18NKU (852-6-4190-577-00-2) APPENDIX B A-2.
This air conditioner uses the refrigerant R410A. External diameter of service port R410A: 5/16" Split System Air Conditioner 85264190577002 2011 INST ALLA TION INSTRUCTIONS NOTE CV6233187839 Contents Page IMPORT ANT! Please Read Before Starting .
2 IMPORT ANT! 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 .
3 8VHWKHIODUHPHWKRGIRUFRQQHFWLQJWXELQJ $SSOUHIULJHUDQWOXEULFDQWWRWKHPDWFKLQJVXUIDFHVRI the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leak- free connection.
4 Printed on container box For unit & PVC tube connection For drain hose connection Remarks Q’ty For full-scale installation diagram 1 2 4 4 4 4 2 1 For temporarily suspending indoor unit from c.
5 1-5. Additional Materials Required for Installation 1. Refrigeration (armored) tape 2. Insulated staples or clamps for connecting wire (See local codes) 3. Putty 4. Refrigeration lubricant 5. Clamps or saddles to secure refrigerant tubing 2. Installation Site Selection 2-1.
6 2-2. Outdoor Unit A VOID: heat sources, exhaust fans, etc. (Fig. 3) damp, humid or uneven locations. DO: choose a place as cool as possible.
7 Hole-in-anchor Concrete Insert Suspension bolt (M10 or 3/8") Hole-in-plug (locally purchased) Fig. 6-1 23-5/8"(600 mm ) 21-1/32"(534 mm ) Ceiling opening dimensions Suspension bolt pi.
8 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.
9 A must be within the range of 1/2"(13 mm ) to 23/32"(18 mm ). (Fig. 6-11) If not within this range, malfunction or other trouble may occur.
10 (2) Removing the corner cover and indicator cover a) While lightly pressing the cen- ter of the corner cover , pull up the tab for the screw hole. Use the same procedure to remove the indicator cover .
11 Fig. 6-23 Fig. 6-24 Fig. 6-25 fit into the holes in the ceiling panel. Place the corner cover so that the 3 tabs Then fasten it in place with the supplied screws. Pin Hole for ceiling panel hook the grille from dropping Hook that prevents Can be installed rotated 90 * The grille can be installed with these hinges facing in any of 4 directions.
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.
13 Cross-Sectional (A)+(B) (A) Power Supply Wiring Length (ft) (C) Control Fuse or Circuit Area (A WG) (B) Power Line Length (ft) Line Length (ft) Model (#14) (#12) (#14) Breaker Capacity CU-KE12NK1 131 (Max.) 230 (Max.) 65 (Max.) 20A CU-KE18NKU 131 (Max.
14 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.
15 For stranded wiring (1) Cut the wire end with a cutting pliers, then strip the insulation to expose the stranded wiring about 3/8" (10 mm) and tightly twist the wire ends. (Figs. 1 1 and 12) (2) Using a screwdriver , remove the terminal screw(s) on the terminal plate.
16 5. Refrigerant T ubing 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.
17 5-4. Connecting T ubing between Indoor and Outdoor Units a) Tightly connect the indoor side refrigerant tubing exten- ded from the wall with the outdoor side tubing.
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.
19 (4) With the “Lo” knob of the manifold valve open, run the vacuum pump. The operation time for the vacu- um pump varies with tubing length and the capacity of the pump. The following table shows the amount of time for evacuation: T able 6 Required time for evacuation when 26.
20 How to T est 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 T est Run mode. (Fig. 29) a) Press and hold the HIGH POWER button and the 1HR.
21 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.
22 7 . Remote Controller Installation Position The remote controller can be operated from either a non-fixed position or a wall-mounted position. T o ensure that the air conditioner operates correctly.
23 ACL (Reset) button 1HR. TIMER button ON/OFF operation button HIGH POWER button 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 .
Operating Instructions CZ-RD515U (852-6-4181-230-00-1) APPENDIX C A-3.
Wired Remote Controller Model No. CZ-RD515U Operating Instructions Panasonic Corporation 1006 Kadoma, Kadoma City, Osaka, Japan 85264181230001 CV6233187877 This wired remote controller is designed for both the “COOL/DRY/HEAT Model” and “COOL/DRY Model” indoor unit.
2 FEA TURES • Micropr ocessor Co ntrolled Operation The interior comp ar tment of the re mote controller cont ains sev eral f eatures to facilitate automatic op eration, easy logically displa yed f or 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.
3 INST ALLA TION LOCA TION W e recommend that this wired remote controller be installed proper ly by qualified installation technicians in accor dance with the Installation Inst ructions pro vided with the unit.
4 REMO TE CONTROLLER Display Inf or mation on the oper ating conditions is dis play ed while the remote controller is s witched on. If the unit is tur ned off , only the mode that was set previously is still displayed. F AN SPEED selector b utton : The air conditioner automatically dec ides the fan speeds .
5 Sensor A temperature sensor inside the remote controller senses the room temperature. ON/OFF operation b utton This bu tton is for t ur ning the air condit ioner on and off.
6 REMO TE CONTROLLER (DISPLA Y) (1) Operation mod e A U T O ........... ................ .......... (only f or COOL/DR Y/HEA T Model) HEA T .................. ................ .... (only f or COOL/DR Y/HEA T Model) MILD DR Y .... ................... .
7 OPERA TION WITH THE REMO TE CONTROLLER 1. A utomatic Operation (only f or COOL/DR Y/HEA T Model) • Single use This unit automatically s witches between cool ing operation and heating operatio n according to the difference be tween the room temperature and the t emperature setting.
8 3. Adjusting the Fan Speed A. A utomatic fan speed Simply set the F AN SPEED selector button to the position. This automatically sets th e best fan speed for the room temperature. B. Manual fa n speed If you w ant to adjust fan speed manually during operati on, just set the F AN SPEED selector bu tton as desired.
9 SETTING THE TIMER 1. How to set the p resent time (Example) T o set to 9:10 pm. 2. How to set the OFF time (Example) T o stop the air conditioner at 11:30 pm. T o cancel the setting, press the TIMER SELECT button twice. 3. How to set the ON time (Example) T o star t operation at 7:10 am.
10 USING THE 1-HOUR OFF TIMER 1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop, regar dless of whether the unit is on or off when this button is pressed. The indicator in the displa y i ndicates that this function is operating.
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A-4 INST ALLA TION INSTRUCTIONS CZ-RD515U (852-6-4190-592-00-0) APPENDIX D.
Parts supplied with the remote controller See T able 1. Remote controller installation guidelines Mount the remote controller 3.3 to 4.9 ft. (1 to 1.
2 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. 8 Indicator Wire harness Ceiling panel T erminal cover Clamps 7P IND and 4P RC wiring connector 5P FLAP wiring connector Clamping strap FLAP RC IND 7P 4P 5P FLAP wiring connector Wire harness Rem.
4 Fig. 9 Fig. 10 Fig. 1 1 ON/OFF operation button 1 HR.TIMER button NIGHT SETBACK button ACL (Reset) button SENSOR button OPERA TION lamp TIMER lamp HIGH POWER lamp REMOTE CONTROL receiver OPERA TION .
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DC1111-0.
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