technical & service manual dc inverter multi-system air ... - Panasonic

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SAFETY PRECAUTIONS TABLE OF CONTENTS Table of Contents .............................................................................................................. ...................................................................................................................... APPLICABLE INDOOR UNITS ..................................................................................................... 1. OPERATING RANGE 2. SPECIFICATIONS 2-1. Unit Specifications 2-2. Major Component Specifications 2-3. Other Component Specifications 3. DIMENSIONAL DATA ................................................................................................................... ............................................................................................................. ....................................................................................... ....................................................................................... ................................................................................................................... 4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram ................................................................................................... 5. PERFORMANCE DATA 5-1. Temperature Charts ............................................................................................................ 5-2. Cooling Capacity ................................................................................................................ 5-3. Cooling Capacity (Low Ambient) ........................................................................................ 6. ELECTRICAL DATA 6-1. Electric Wiring Diagrams .................................................................................................... 7. FUNCTIONS ..................................................................................................... 7-1. Explanation of Functions ........................................................................................................... 7-2. Protective Functions 8. TROUBLESHOOTING (BEFORE CALLING FOR SERVICE) .......................................................... 8-1. Precautions before Performing Inspection or ....................................................................... Rep<strong>air</strong> 8-2. Trouble Diagnosis by Error Monitop ........................................................................................... Lamps 8-3. Checking the Outdoor System ......................................................................................... 8-4. Trouble Diagnosis of Each Part ......................................................................................... 8-5. Trouble Diagnosis of Fan Motor 4 Page 2 4 6 7 8 17 20 21 24 27 50 56 62 65 69 71 72 73 74 78
9. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT 9-1. Characteristics of New Refrigerant R410A ......................................................................... 9-2. Checklist before Servicing ................................................................................................... 9-3. Tools Specifically for R410A ................................................................................................ 9-4. Tubing Installation Procedures ............................................................................................ 9-5. In Case of Compressor Malfunction .................................................................................... 9-6. In Case Refrigerant is Leaking ............................................................................................ 9-7. Charging Additional Refrigerant .......................................................................................... 9-8. Retro-Fitting Existing Systems ............................................................................................ APPENDIX A INSTALLATION INSTRUCTIONS ............................................................................. 5 Page 79 80 81 81 82 84 85 85 A-1
Page 1 and 2: TECHNICAL & SERVICE MANUAL OUTDOOR
Page 3: Warning If refrigerant gas blows of
Page 7: 1. OPERATING RANGE Cooling Temperat
Page 11 and 12: Outdoor Unit CU-4KS24NBU Indoor Uni
Page 17 and 18: 2-2. Major Component Specifications
Page 19 and 20: Outdoor Unit CU-4KS31NBU Control PC
Page 21 and 22: 3. DIMENSIONAL DATA Outdoor Unit CU
Page 23 and 24: Outdoor Unit CU-4KS31NBU 1-3/8 11-1
Page 25 and 26: Outdoor Unit CU-4KS24NBU Indoor uni
Page 27 and 28: 5. PERFORMANCE DATA 5-1. Temperatur
Page 51 and 52: Outdoor Unit : CU-3KS19NBU Indoor U
Page 53 and 54: Outdoor Unit : CU-4KS24NBU Indoor U
Page 55 and 56:
Outdoor Unit : CU-4KS31NBU Indoor U
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Page 61 and 62:
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Outdoor Unit CU-4KS24NBU 63 8FA2-52
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7. FUNCTIONS 7-1. Explanation of Fu
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(1/f fluctuation fan) SENSOR DRY (S
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7-2. Protective Functions NOTE The
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8. TROUBLESHOOTING (BEFORE CALLING
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8-3. Checking the Outdoor System 8-
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8-4-2. Inspection Points for Each P
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(7) Branch tubing temperature senso
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9. REFRIGERANT R410A: SPECIAL PRECA
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9-3. Tools Specifically for R410A F
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(5) Recharging Be sure to charge th
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9-7. Charging Additional Refrigeran
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For Outdoor Unit INSTALLATION INSTR
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the flare and union tubes before co
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2. Installation Site Selection 2-1.
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2-2. Connecting Indoor Units Figure
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(3) Connecting indoor unit for CU-4
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2-3. Outdoor Unit AVOID: heat sour
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(3) Installation procedure 1. Air I
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2-6. Diagram of Outdoor Unit Instal
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NOTE When reaming, hold the tube en
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3-7. Taping the Tubes (1) At this t
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(11) Replace the flare nut on the w
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WARNING Be sure to comply with loc
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5-5. Wiring Instructions for the Ou
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7. Connecting a Home Automation Dev
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