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) andtightly twist the wire ends. (Figs. 11 and 12)(2) Using a screwdriver, remove the terminal screw(s) on the terminal plate.(3) Using a ring connector 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)Fig. 11Stranded wireRingconnectorStrip 3/8" (10 mm)Fig. 12Twist wire endsFig. 13ScrewRing connectorTerminal plateWireSpecialwasherScrew andspecial washerRingconnectorWire4. How to Install the Outdoor UnitFirst refer to Section 2. Installation Site Selection.4-1. Wiring Instructions for the Outdoor UnitRegulations on wire size differ from locality to locality.For field wiring requirements, please refer to yourlocal electrical codes. Make sure that the installationfully complies with all local and national regulations.(1) Remove access panel “C”. (Fig. 14)(2) Connect the inter-unit and power supply lineaccording to the drawing on the panel side.(3) Be sure to size each wire allowing approx. 4"(10 cm) longer than the required length forwiring. Store excess wiring inside the cabinet.(4) When connections are completed, check that allconnections are correct as shown in the wiringsystem diagram on panel side.(5) Be sure to ground the unit according to yourlocal codes. Fig. 14Lock nutConduitplatePlug Inter unit(Conduit)Power supply(Conduit)CabinetTerminalblockAccess panel “C”

Please Read Before Starting

GENERAL

INSTALLATION SITE SELECTION

2-2. Outdoor Unit

HOW TO INSTALL THE INDOOR UNIT

3-4. Installing the Drain Piping

3-5. Checking the Drainage

3-7. Wiring Instructions

3-9. Wiring Instructions for Inter-unit Connections

HOW TO INSTALL THE OUTDOOR UNIT

REFRIGERANT TUBING

5-4. Connecting Tubing between Indoor and

AIR PURGING

NOTE External diameter of service port R410A

REMOTE CONTROLLER INSTALLATION POSITION

ADDRESS SWITCH

Panasonic CS-KE12NB41 Installation Instructions Manual

SAFETY PRECAUTIONS

OPERATING RANGE

Unit Specifications

Major Component Specifications

outdoor unit

Other Component Specifications

DIMENSIONAL DATA

Refrigerant Flow Diagram

Temperature Charts

Cooling Capacity

Cooling Capacity (Low Ambient)

Heating Capacity

Electrical Characteristics

Electric Wiring Diagrams

Disconnecting and Connecting Positive Connector for Outdoor Unit

Disassembly Procedure

Operation Functions

night setback

Protective Functions

defrost detection and release

Precautions before Performing Inspection or Repair

operation lamp

Checking the Indoor and Outdoor Units

Trouble Diagnosis of Fan Motor

Noise Malfunction and Electromagnetic Interference

Measurement of Insulation Resistance

Checking Continuity of Fuse on PCB Ass'y

Characteristics of New Refrigerant R410A

Checklist before Servicing

Tools Specifically for R410A

In Case of Compressor Malfunction

In Case Refrigerant is Leaking

Charging Additional Refrigerant

APPENDIX A Operating Instructions

operating instructions

product information

installation location

names of parts

remote controller

using the remote controller

operation with the remote controller

adjusting the fan speed

setting the timer

adjusting the airflow direction

operation without the remote controller

troubleshooting

specifications

APPENDIX B INSTALLATION INSTRUCTIONS

installation instructions

please read before starting

installation site selection

how to install the indoor unit

how to install the outdoor unit

refrigerant tubing

connecting tubing between indoor and

air purging

basic functions of the service valves

service valve connections

APPENDIX C Operating Instructions

wired remote controller

remote controller display

using the 1-hour off timer

APPENDIX D INSTALLATION INSTRUCTIONS

CS-KE12NB41

CS-KE18NB4UW

CU-KE12NK1

CU-KE18NKU

CZ-18BT1U