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Panasonic CS-MKS9NB4U Technical & Service Manual

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Download this manual See also: Instruction and Installation Manual, Installation Manual
TECHNICAL & SERVICE MANUAL
INDOOR UNIT : CS-MKS9NB4U & CZ-18BT1U
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
9,000BTU / h
11,900BTU / h
17,500BTU / h
CS-MKS9NB4U (Body) & CZ-18BT1U (Panel)
CS-MKS12NB4U (Body) & CZ-18BT1U(Panel)
CS-KS18NB4UW (Body) & CZ-18BT1U(Panel)
Remote Controller
CS-MKS12NB4U & CZ-18BT1U
CS-KS18NB4UW & CZ-18BT1U
Indoor Model No.
Capacity
Body (Panel)
CS-MKS9NB4U (CZ-18BT1U)
CS-MKS12NB4U (CZ-18BT1U)
CS-KS18NB4UW (CZ-18BT1U)
Semi-Concealed Type Indoor Unit
Wired Remote Controller
(Option)
Product Code No.
Body (Panel)
1 852 361 08 (1 852 361 15)
1 852 361 09 (1 852 361 15)
1 852 361 06 (1 852 361 15)
Body
< Applicable Multi-Outdoor Units >
CU-3KS19NBU (3-room multi unit)
CU-4KS24NBU (4-room multi unit)
CU-4KS31NBU (4-room multi unit)
Panel
SM
700881
REFERENCE NO.

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Summary of Contents for Panasonic CS-MKS9NB4U

  • Page 1 TECHNICAL & SERVICE MANUAL INDOOR UNIT : CS-MKS9NB4U & CZ-18BT1U CS-MKS12NB4U & CZ-18BT1U CS-KS18NB4UW & CZ-18BT1U DC INVERTER MULTI-SYSTEM AIR CONDITIONER Indoor Model No. Product Code No. Capacity Body (Panel) Body (Panel) 9,000BTU / h CS-MKS9NB4U (CZ-18BT1U) 1 852 361 08 (1 852 361 15)

  • Page 2: Safety Precautions

    SAFETY PRECAUTIONS • Before doing repair work, please read the " SAFETY PRECAUTIONS" carefully and fully understand them. • The precautionary items here are divided into " 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 "...
  • Page 3 Warning If refrigerant gas blows off during the work, do not touch the refrigerant gas as it may cause frostbite. 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.

  • Page 4: Table Of Contents

    8-5. Noise Malfunction and Electromagnetic Interference .................... APPENDIX A Operating Instructions CS-MKS9NB4U & CZ-18BT1U , CS-MKS12NB4U & CZ-18BT1U .................... APPENDIX B Operating Instructions (CS-KS18NB4UW & CZ-18BT1U) ................APPENDIX C INSTALLATION INSTRUCTIONS CS-MKS9NB4U & CZ-18BT1U , CS-MKS12NB4U & CZ-18BT1U , CS-KS18NB4UW & CZ-18BT1U...
  • Page 5 Page .................... APPENDIX D Operating Instructions (CZ-RD515U) ................APPENDIX E INSTALLATION INSTRUCTIONS (CZ-RD515U)

  • Page 6: Applicable Multi-Outdoor Units

    APPLICABLE MULTI-OUTDOOR UNITS Multi-Outdoor Unit 3-Room 4-Room 4-Room CU-3KS19NBU CU-4KS24NBU CU-4KS31NBU Indoor Unit CS-MKS9NB4U & CZ-18BT1U CS-MKS12NB4U & CZ-18BT1U CS-KS18NB4UW & CZ-18BT1U...

  • Page 7: Operating Range

    1. OPERATING RANGE Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Maximum 95 °F DB / 71 °F WB 115 °F DB Cooling Minimum 67 °F DB / 57 °F WB 14 °F DB...

  • Page 8: Specifications

    2. SPECIFICATIONS 2-1. Unit Specifications 2-1-1. Indoor Unit CS-MKS9NB4U & CZ-18BT1U <230V> Type Semi-Concealed Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Cooling Total Capacity BTU/h 9,000 2.65 Air Circulation (Hi/Me/Lo) /min (m 221(376)/206(350)/194(330) Moisture Removal (High) Pints/h Available Voltage Range...
  • Page 9 Indoor Unit CS-MKS9NB4U & CZ-18BT1U <208V> Type Semi-Concealed Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Cooling Total Capacity BTU/h 9,000 2.65 Air Circulation (Hi/Me/Lo) /min (m 221(376)/206(350)/194(330) Moisture Removal (High) Pints/h Available Voltage Range 187 to 253 Running Amperes 0.11...
  • Page 10 Indoor Unit CS-MKS12NB4U & CZ-18BT1U <230V> Type Semi-Concealed Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Cooling Total Capacity BTU/h 11,900 Air Circulation (Hi/Me/Lo) /min (m 235(399)/206(350)/194(330) Moisture Removal (High) Pints/h 4.26 Available Voltage Range 187 to 253 Running Amperes 0.11 Power Input Controls / Temperature Control...
  • Page 11 Indoor Unit CS-MKS12NB4U & CZ-18BT1U <208V> Type Semi-Concealed Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Cooling Total Capacity BTU/h 11,900 Air Circulation (Hi/Me/Lo) /min (m 235(399)/206(350)/194(330) Moisture Removal (High) Pints/h 4.26 Available Voltage Range 187 to 253 Running Amperes 0.12 Power Input Controls / Temperature Control...
  • Page 12 Indoor Unit CS-KS18NB4UW & CZ-18BT1U <230V> Type Semi-Concealed Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Cooling Total Capacity BTU/h 17,500 5.15 Air Circulation (Hi/Me/Lo) /min (m 341(579)/294(500)/253(430) Moisture Removal (High) Pints/h 4.89 Available Voltage Range 187 to 253 Running Amperes 0.15 Power Input Controls / Temperature Control...
  • Page 13 Indoor Unit CS-KS18NB4UW & CZ-18BT1U <208V> Type Semi-Concealed Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Cooling Total Capacity BTU/h 17,500 5.15 Air Circulation (Hi/Me/Lo) /min (m 341(579)/294(500)/253(430) Moisture Removal (High) Pints/h 4.89 Available Voltage Range 187 to 253 Running Amperes 0.16 Power Input Controls / Temperature Control...

  • Page 14: Major Component Specifications

    2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor Unit (Body) CS-MKS9NB4U Control PCB Part No. CB-CS-MKS9NB4U Controls Microprocessor Control Circuit Fuse 250V 3A Type Turbo Q'ty ... Dia. and Length inch (mm) 1 ... D12-5/8 / L5-3/4 (D322/L147) Fan Motor...
  • Page 15 Indoor Unit (Body) CS-MKS12NB4U Control PCB Part No. CB-CS-MKS12NB4U Controls Microprocessor Control Circuit Fuse 250V 3A Type Turbo Q'ty ... Dia. and Length inch (mm) 1 ... D12-5/8 / L5-3/4 (D322/L147) Fan Motor Type DC Motor Model ... Q'ty SIC-62FW-D866-2 ... 1 No.
  • Page 16 Indoor Unit (Body) CS-KS18NB4UW Control PCB Part No. CB-CS-KS18NB4U Controls Microprocessor Control Circuit Fuse 250V 3A Type Turbo Q'ty ... Dia. and Length inch (mm) 1 ... D12-5/8 / L5-3/4 (D322/L147) Fan Motor Type DC Motor Model ... Q'ty SIC-62FW-D866-2 ... 1 No.

  • Page 17: Other Component Specifications

    2-3. Other Component Specifications Indoor Unit CS-MKS9NB4U & CZ-18BT1U CS-MKS12NB4U & CZ-18BT1U CS-KS18NB4UW & CZ-18BT1U • Indoor air temp sensor • Indoor heat exchanger sensor (Model:KTEC-35-S98) (Model:PT2M-51H-S3) 32 50 68 86 104 122 140 158 176 194 (10) (15) (20) (25) (30) (35) (40) (0) (10) (20) (30) (40) (50) (60) (70) (80) (90) Temperature °F (°C)

  • Page 18: Dimensional Data

    3. DIMENSIONAL DATA Indoor Unit CS-MKS9NB4U & CZ-18BT1U CS-MKS12NB4U & CZ-18BT1U CS-KS18NB4UW & CZ-18BT1U Unit : inch (mm)

  • Page 19: Refrigerant Flow Diagram

    4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram Indoor Unit CS-MKS9NB4U & CZ-18BT1U CS-MKS12NB4U & CZ-18BT1U Indoor unit O.D. 3/8" (9.52 mm) O.D. 1/4" (6.35 mm) Cooling cycle Indoor Unit CS-KS18NB4UW & CZ-18BT1U Indoor unit O.D. 1/2" (12.7 mm) O.D. 1/4" (6.35 mm)

  • Page 20: Electrical Data

    5. ELECTRICAL DATA 5-1. Electric Wiring Diagrams Indoor Unit CS-MKS9NB4U & CZ-18BT1U CS-MKS12NB4U & CZ-18BT1U CS-KS18NB4UW & CZ-18BT1U...

  • Page 21: Maintenance

    6. MAINTENANCE 6-1. Disassembly Procedure To avoid electrical shock hazard, be sure to disconnect power before attempting to disassemble the unit. Warning 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. 6-1-1.
  • Page 22 6-1-3. Remove the ceiling panel. (1) Open the clamp (4 locations) and remove the 2 lead wires from the clamps. (Fig. 6) (2) Remove the 4 screws fixing the corner cover (at 3 locations) and indicator cover (at 1 location). (Fig. 6) (3) Press the center 1 of the cover and remove the cover with the section 2 pulled down.
  • Page 23 6-1-4. Remove the indoor air temperature sensor. (1) Disconnect the connector CN08 (ROOM 2P) in the control box and remove the indoor air temperature sensor. (Fig. 10) Indoor air temperature sensor CN08 Fig.10 6-1-5. Remove the power box and control box. (1) Remove a screw and remove the terminal cover.
  • Page 24 (4) Disconnect the connector CN07 (DP 2P) in the power box. (Fig. 13) Remove a screw and disconnect the ground cable. (Fig. 13) (5) Disconnect the connector CN03 (DCM 6P) in the power box. (Fig. 14) (6) Remove the 4 screws and remove the power box. (Fig. 14) (7) Disconnect the connectors CN06 (FS 3P) and CN09 (COIL-1 2P) in the control box.
  • Page 25 For the removal of the following components, perform any work after removing the indoor NOTE 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 from the drain pan. Put a bucket, etc., under the drain cap and remove the drain cap to drain the water.
  • Page 26 6-1-7. Remove the heat exchanger sensor. (1) Remove the heat exchanger sensor from the sensor holder. (Fig. 19) Heat exchanger sensor Holder Fig.19 6-1-8. Remove the drain pump and float switch. (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.
  • Page 27 6-1-9. 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 Screw Fan motor Fig.22 Fig.23 6-1-10.

  • Page 28: Functions

    7. FUNCTIONS 7-1. Operation Functions Emergency operation SENSOR DRY Emergency operation is available when the remote During DRY operation, the system adjusts the room controller malfunctions, has been lost, or otherwise temperature and fan speed according to the conditions in the room, in order to maintain a comfortable room environment.

  • Page 29: Night Setback

    HIGH POWER NIGHT SETBACK This function acts to raise the power but keeps the AC system in When NIGHT SETBACK operation is set, the temperature and the same operating mode. fan speed settings will be adjusted automatically to allow This function is set with the HIGH POWER button on the remote comfortable sleep.

  • Page 30: Protective Functions

    7-2. Protective Functions 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.

  • Page 31: Troubleshooting (Before Calling For Service)

    8. TROUBLESHOOTING (BEFORE CALLING FOR SERVICE) 8-1. 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 is required for the charge to dissipate.

  • Page 32: Operation Lamp

    (1) Self-diagnostics Lamps INDOOR UNIT OPERATION button OPERATION lamp TIMER lamp HIGH POWER lamp REMOTE CONTROL receiver Since the indications cover various units, the corresponding parts listed below may not be present in some models..OFF ..BLINKING ..ON INDICATION ON INDOOR UNIT HIGH OPERATION...

  • Page 33: Checking The Indoor And Outdoor Units

    (2) If the self-diagnostics function fails to operate • 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 circuit board or the fuse. Replace the controller.
  • Page 34 (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"...
  • Page 35 ( Continued from the previous page A. ) ( Continued from the previous page 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) ? (Fig.
  • Page 36 (3-2) Condition: E12 Troubleshooting Serial Communication Outdoor Unit Power 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 Outdoor Indoor Unit unit terminal strip.

  • Page 37: Trouble Diagnosis Of Fan Motor

    8-4. Trouble Diagnosis of Fan Motor 8-4-1. Indoor Fan Motor 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".

  • Page 38: Noise Malfunction And Electromagnetic Interference

    8-5. Noise Malfunction and Electromagnetic Interference An inverter A/C operates using pulse signal control and high frequencies. Therefore, it is susceptible to the effects of external noise, and is likely to cause electromagnetic interference with nearby wireless devices. A noise filter is installed for ordinary use, preventing these problems. However, depending on the installation conditions, these effects may still occur.

  • Page 40: Appendix A Operating Instructions

    APPENDIX A Operating Instructions CS-MKS9NB4U & CZ-18BT1U CS-MKS12NB4U & CZ-18BT1U (852-6-4181-216-00-1)

  • Page 41: Appendix B Operating Instructions (Cs-Ks18Nb4Uw & Cz-18Bt1U)

    Operating Instructions Split System Air Conditioner Model No. Indoor Units Outdoor Units CS-MKS9NB4U CU-3KS19NBU CS-MKS12NB4U CU-4KS24NBU CU-4KS31NBU Ceiling Panel CZ-18BT1U This air conditioner uses the refrigerant R410A. Before operating the unit, read these operating instructions thoroughly and keep them for future reference.

  • Page 42: Features

    FEATURES This air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functions are provided below; refer to these descriptions when using the air conditioner. • Microprocessor Controlled Operation • Automatic and 3-step Fan Speed The interior compartment of the remote controller contains Auto/High/Medium/Low several features to facilitate automatic operation, easy...

  • Page 43: Installation Location

    INSTALLATION LOCATION • To prevent possible hazards from insulation failure, the unit must be grounded. • We recommend that this air conditioner be installed • Do not clean inside the indoor and outdoor units by users. properly by qualified installation technicians in Engage authorized dealer or specialist for cleaning.

  • Page 44: Names Of Parts

    NAMES OF PARTS UNIT DISPLAY AND OPERATION BUTTON INDOOR UNIT INDOOR UNIT Air Intakes OPERATION button OPERATION lamp Air Outlet TIMER lamp (4 locations) HIGH POWER lamp REMOTE CONTROL receiver Remote Controller IMPORTANT Refrigerant Tubes Avoid using radio equipment such as mobile phone near (within OUTDOOR UNIT 4 ft.
  • Page 45 REMOTE CONTROLLER (DISPLAY) Displayed when transmitting data Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is shown Displayed when setting timer Displayed when the time display is set to 12-hour time. Symbols (1) Operation mode (4) Timer MILD DRY ......
  • Page 46 REMOTE CONTROLLER Transmitter When you press the buttons on the remote controller, the mark appears in the display to transmit the setting changes to the receiver in the air conditioner. Display Information on the operating conditions is displayed while the remote controller is switched on.
  • Page 47 Sensor A temperature sensor inside the remote controller senses the room temperature. ON/OFF operation button This button is for turning the air conditioner on and off. 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.

  • Page 48: Using The Remote Controller

    USING THE REMOTE CONTROLLER HOW TO INSTALL BATTERIES 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 (Transmitter Remote Controller head) REMOTE CONTROLLER INSTALLATION ACL button POSITION...

  • Page 49: Operation With The Remote Controller

    OPERATION WITH THE REMOTE CONTROLLER 1. Operation 2. 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.

  • Page 50: Night Setback Mode

    4. Night Setback Mode HIGH POWER mode can be used to increase the output of the indoor unit for all operation modes. Press the HIGH POWER button while unit is operating. mark appears in the display. To cancel, press HIGH POWER button again. •...
  • Page 51 1. How to set the present time Operation Indication (Example) To set to 10:30 pm. Press the ON TIME setting The timer indication is button once. displayed, and the present ON time is shown. Press the Advance, Return The timer indication ) button until AM 7:10 blinks.

  • Page 52: Using The 1-Hour Off Timer

    USING THE 1-HOUR OFF ADJUSTING THE AIRFLOW TIMER DIRECTION The vertical airflow can be adjusted by moving the flap with the 1. 1-Hour OFF Timer 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.

  • Page 53: Operation Without The Remote Controller

    OPERATION WITHOUT THE CARE AND CLEANING REMOTE CONTROLLER • Cleaning and maintenance operations must be carried out by specially INDOOR UNIT 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.
  • Page 54 Air filter How to remove the air intake grille The air filter collects dust and other particles from the air and should Open the air intake grille. be cleaned once every 6 months. Detach the safety cord from the frame (remember to attach it If the filter gets blocked, the efficiency of the air conditioner drops again after cleaning or maintenance).

  • Page 55: Troubleshooting (Before Calling For Service)

    TROUBLESHOOTING OPERATING RANGE (BEFORE CALLING FOR SERVICE) The air conditioner is operable within the temperature ranges as listed below: If your air conditioner does not work properly, first check the following Temperature Indoor air Outdoor air points before requesting service. If it still does not work properly, temperature temperature contact your dealer or service center.

  • Page 56: Specifications

    SPECIFICATIONS Indoor Unit Model No. CS-MKS9NB4U CS-MKS12NB4U Power Source Single-phase, 208-230 V, 60 Hz 2.65 3.50 Cooling Capacity BTU/h 9,000 11,900 Heating Capacity BTU/h Cooling Operation (H/M/L) dB(A) 33/32/31 34/32/31 Operation Sound dB(A) Heating Operation (H/M/L) 11-5/32×22-5/8×22-5/8 11-5/32×22-5/8×22-5/8 Unit Dimensions (H×W×D) inch(mm) (283×575×575)
  • Page 58 APPENDIX B Operating Instructions CS-KS18NB4UW & CZ-18BT1U (852-6-4181-211-00-1)
  • Page 59 • “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. Before operating the unit, read these operating instructions thoroughly and keep them for future reference. Panasonic Corporation 1006 Kadoma, Kadoma City, Osaka, Japan 85264181211001 CV6233187622...

  • Page 60: Features

    FEATURES This air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functions are provided below; refer to these descriptions when using the air conditioner. • Microprocessor Controlled Operation • Automatic and 3-step Fan Speed The interior compartment of the remote controller contains Auto/High/Medium/Low several features to facilitate automatic operation, easy...

  • Page 61: Installation Location

    INSTALLATION LOCATION • To prevent possible hazards from insulation failure, the unit must be grounded. • We recommend that this air conditioner be installed • Do not clean inside the indoor and outdoor units by users. properly by qualified installation technicians in Engage authorized dealer or specialist for cleaning.

  • Page 62: Names Of Parts

    NAMES OF PARTS UNIT DISPLAY AND OPERATION BUTTON INDOOR UNIT INDOOR UNIT Air Intakes OPERATION button OPERATION lamp Air Outlet TIMER lamp (4 locations) HIGH POWER lamp REMOTE CONTROL receiver Remote Controller IMPORTANT Refrigerant Tubes Avoid using radio equipment such as mobile phone near (within OUTDOOR UNIT 4 ft.
  • Page 63 REMOTE CONTROLLER (DISPLAY) Displayed when transmitting data Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is shown Displayed when setting timer Displayed when the time display is set to 12-hour time. Symbols (1) Operation mode (4) Timer MILD DRY ......
  • Page 64 REMOTE CONTROLLER Transmitter When you press the buttons on the remote controller, the mark appears in the display to transmit the setting changes to the receiver in the air conditioner. Display Information on the operating conditions is displayed while the remote controller is switched on.
  • Page 65 Sensor A temperature sensor inside the remote controller senses the room temperature. ON/OFF operation button This button is for turning the air conditioner on and off. 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.

  • Page 66: Using The Remote Controller

    USING THE REMOTE CONTROLLER HOW TO INSTALL BATTERIES 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 (Transmitter Remote Controller head) REMOTE CONTROLLER INSTALLATION ACL button POSITION...

  • Page 67: Operation With The Remote Controller

    OPERATION WITH THE REMOTE CONTROLLER 1. Operation 2. 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.

  • Page 68: Night Setback Mode

    4. Night Setback Mode HIGH POWER mode can be used to increase the output of the indoor unit for all operation modes. Press the HIGH POWER button while unit is operating. mark appears in the display. To cancel, press HIGH POWER button again. •...
  • Page 69 1. How to set the present time Operation Indication (Example) To set to 10:30 pm. Press the ON TIME setting The timer indication is button once. displayed, and the present ON time is shown. Press the Advance, Return The timer indication ) button until AM 7:10 blinks.

  • Page 70: Using The 1-Hour Off Timer

    USING THE 1-HOUR OFF ADJUSTING THE AIRFLOW TIMER DIRECTION The vertical airflow can be adjusted by moving the flap with the 1. 1-Hour OFF Timer 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.

  • Page 71: Operation Without The Remote Controller

    OPERATION WITHOUT THE CARE AND CLEANING REMOTE CONTROLLER • Cleaning and maintenance operations must be carried out by specially INDOOR UNIT 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.
  • Page 72 Air filter How to remove the air intake grille The air filter collects dust and other particles from the air and should Open the air intake grille. be cleaned once every 6 months. Detach the safety cord from the frame (remember to attach it If the filter gets blocked, the efficiency of the air conditioner drops again after cleaning or maintenance).

  • Page 73: Troubleshooting (Before Calling For Service)

    TROUBLESHOOTING OPERATING RANGE (BEFORE CALLING FOR SERVICE) The air conditioner is operable within the temperature ranges as listed below: If your air conditioner does not work properly, first check the following For Cooling Only Models : CU-KS18NKU points before requesting service. If it still does not work properly, Temperature Indoor air Outdoor air...
  • Page 74 SPECIFICATIONS • For Single use Outdoor Unit Indoor Unit Model No. CU-KS12NK1A CS-KS12NB41 Power Source Single-phase, 115 V, 60 Hz 3.50 [ 0.90 ~ 3.50 ] Cooling Capacity 11,900 [ 3,000 ~ 11,900 ] BTU/h Heating Capacity BTU/h Cooling Outdoor (Hi) dB(A) Operation Operation...
  • Page 75 • For Multiple use Indoor Unit Model No. CS-KS18NB4UW Power Source Single-phase, 208-230 V, 60 Hz 5.15 Cooling Capacity 17,500 BTU/h Heating Capacity BTU/h Cooling Operation dB(A) 44/40/36 Operation (H/M/L) Sound Heating Operation dB(A) (H/M/L) 11-5/32×22-5/8×22-5/8 Unit Dimensions (H×W×D) inch(mm) (283×575×575) lbs.(kg) Net Weight...

  • Page 76: Appendix C Installation Instructions

    APPENDIX C INSTALLATION INSTRUCTIONS CS-MKS9NB4U & CZ-18BT1U CS-MKS12NB4U & CZ-18BT1U CS-KS18NB4UW & CZ-18BT1U (852-6-4190-582-00-0)

  • Page 77: Installation Instructions

    1-2. Accessories Supplied with Unit Model No. 1-3. Optional Copper Tubing Kit 1-4. Type of Copper Tube and Insulation Material Indoor Unit Outdoor Unit 1-5. Additional Materials Required for Installation CS-MKS9NB4U CU-3KS19NBU CS-MKS12NB4U CU-4KS24NBU INSTALLATION SITE SELECTION ....5 2-1. Indoor Unit CS-KS18NB4UW CU-4KS31NBU 2-2.

  • Page 78: Please Read Before Starting

    IMPORTANT! When Transporting Please Read Before Starting Be careful when picking up and moving the indoor and out- door units. Get a partner to help, and bend your knees when This air conditioning system meets strict safety and operating lifting to reduce strain on your back. Sharp edges or thin alu- standards.
  • Page 79 the flare and union tubes before connecting them, then that no metal scraps or bits of wiring have been left inside tighten the nut with a torque wrench for a leak-free the unit being serviced. connection. Others or re-installation, and while repairing refrigeration parts. CAUTION Handle liquid refrigerant carefully as it may cause frost- bite.
  • Page 80 Wide Tube Check local electrical codes Model and regulations before Outer Dia. Thickness Outer Dia. Thickness obtaining wire. Also, check CS-MKS9NB4U 1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm) CS-MKS12NB4U any specified instructions or limitations. CS-KS18NB4UW 1/4"...

  • Page 81: Installation Site Selection

    1-5. Additional Materials Required for Installation Refrigeration (armored) tape Insulated staples or clamps for connecting wire (See local codes.) Putty Refrigeration lubricant Clamps or saddles to secure refrigerant tubing 2. Installation Site Selection 2-1. Indoor Unit To prevent abnormal heat generation WARNING and the possibility of fire, do not place obstacles, enclosures and...
  • Page 82 install the indoor unit more than 3.3' (1 m) away from any antenna or power lines or connecting wires used for tele- vision, radio, telephone, security system, or intercom. Electrical noise from any of these sources may affect operation. install in a sturdy manner to avoid increased operating noise.
  • Page 83 3. How to Install the Indoor Unit Hole-in-anchor Concrete Insert Hole-in-plug 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 Suspension bolt (M10 or 3/8") (1) Fix the suspension bolts securely in the ceiling using (locally purchased) the method shown in the diagrams, by attaching...
  • Page 84 Twist tie 3-4. Installing the Drain Piping (4 vinyl ties, supplied) Hard PVC pipe Drain hose (1) Prepare standard hard PVC pipe (locally purchased O.D. Position to Drain port (equivalent to insulation O.D. 1-1/32" (26mm)) fasten hose 1-1/32" (26 mm)) for the drain and use the supplied hose (supplied) bands (locally purchased)
  • Page 85 3-5. Checking the Drainage Water drain 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.
  • Page 86 (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 Corner cover Press remove the indicator cover. (Fig. 6-16) Pull up Indicator cover Fig.
  • Page 87 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. Control box panel to the connector on the control PCB in the control box. Refrigerant tube side (Fig.
  • Page 88 3-6-5. Checking After Installation Check that there are no gaps between 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 it is not securely connected, the auto flap will not operate.
  • Page 89 Loose wiring may cause the WARNING terminal to overheat or result in unit malfunction. A fire hazard may also exist. There- fore, be sure all wiring is tightly connected. When connecting each power wire to the corresponding terminal, follow the instructions “How to connect wiring to the terminal”...
  • Page 90 4. How to Test Run the Air Conditioner After turning on the power of the air conditioner, use the remote controller and follow the steps below to conduct the test run. (1) Set the remote controller in Test Run mode. (Fig. 33) a)Press and hold the HIGH POWER button and the 1HR.
  • Page 91 5. Remote Controller Installation Position The remote controller can be operated from either a non-fixed position or a wall-mounted position. To ensure that the air conditioner operates correctly, do not install the remote controller in the following places: In direct sunlight Behind a curtain or other place where it is covered More than 26' (8 m) away from the air conditioner In the path of the air conditioner’s airstream...
  • Page 92 6. Address Switch 6-1. 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.
  • Page 93 7. Connecting a Home Automation Device The HA (white) 4P terminal is located on the indoor unit PCB. If a HA device will be used, connect it to this terminal. 8. Installation Check Sheet The strength of the installation location is sufficient to support the air conditioner weight.
  • Page 94 APPENDIX D Operating Instructions CZ-RD515U (852-6-4181-230-00-1)

  • Page 95: Wired Remote Controller

    “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. Panasonic Corporation 1006 Kadoma, Kadoma City, Osaka, Japan 85264181230001 CV6233187877...
  • Page 96 FEATURES • Microprocessor Controlled Operation • Air Sweep Control The interior compartment of the remote controller contains several This function moves a flap up and down in the air outlet, directing features to facilitate automatic operation, easy logically displayed air in a sweeping motion around the room and providing comfort in for easy use.

  • Page 97: Installation Location

    INSTALLATION LOCATION • To prevent possible hazards from insulation failure, the unit must be grounded. We recommend that this wired remote controller be • Do not clean inside the indoor and outdoor units by users. installed properly by qualified installation technicians Engage authorized dealer or specialist for cleaning.

  • Page 98: Remote Controller

    REMOTE CONTROLLER NOTE The descriptions on the AUTO ( ) or HEAT ( ) 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.
  • Page 99 ON/OFF operation button This button is for turning the air conditioner on and off. MODE selector button Use this button to select AUTO, HEAT, DRY, COOL or FAN mode. (AUTO) : 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’’...
  • Page 100 REMOTE CONTROLLER (DISPLAY) Displayed when indoor unit sensor Displayed when operating NIGHT is in use SETBACK mode Displayed when setting temperature Displayed when temperature is shown Displayed when setting timer Symbols (1) Operation mode (3) Temperature setting 60 – 86 °F ......AUTO ........

  • Page 101: Operation With The Remote Controller

    OPERATION WITH THE REMOTE CONTROLLER 1. Automatic Operation 2. Manual 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. •...

  • Page 102: Adjusting The Fan Speed

    3. Adjusting the Fan Speed A. In Cooling and DRY Mode: ( A. Automatic fan speed When the night setback mode is selected, the air conditioner Simply set the FAN SPEED selector button to the automatically raises the temperature setting 2 °F when 30 minutes have passed after the selection was made, and then another 2 °F position.

  • Page 103: Setting The Timer

    SETTING THE TIMER 3. How to set the ON time (Example) To start operation at 7:10 am. ON TIME Present time Operation Indication Press the SET button once. The timer indication alone flashes and the previous set- time is only displayed. •...

  • Page 104: Using The 1-Hour Off Timer

    USING THE 1-HOUR OFF ADJUSTING THE AIRFLOW TIMER DIRECTION The vertical airflow can be adjusted by moving the flap with the 1. 1-Hour OFF Timer 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.
  • Page 106 APPENDIX E INSTALLATION INSTRUCTIONS CZ-RD515U (852-6-4190-592-00-0)
  • Page 107 INSTALLATION INSTRUCTIONS Wired Remote Controller In order to install this wired remote controller onto a wall-mounted model, the connection kit IMPORTANT (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. Table 1 Parts supplied with the remote controller Parts...
  • Page 108 A. Installing with in-wall junction box In-wall junction box (locally purchased) (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 2-3/8"...
  • Page 109 How to wire the remote controller 5P FLAP 7P IND and 4P RC Ceiling wiring connector wiring connector panel (1) Turn OFF the power and remove the ceiling panel air-intake grille. (Refer to 3-6-1 Before Installing the Ceiling Panel in the Installation Instructions supplied with the indoor unit.) (2) Remove the 3 power box cover screws and 2 control box cover screws, then remove both covers.
  • Page 110 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 ON/OFF the 1HR.
  • Page 112 DC1111-0...

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