Panasonic cu-3ks19nbu User Manuals

Table of Contents

• TECHNICAL & SERVICE MANUAL

  1
• SAFETY PRECAUTIONS

  2
• Table of Contents

  4
• ■APPLICABLE INDOOR UNITS

  6
• 1. OPERATING RANGE

  7
• 2. SPECIFICATIONS

  8
  • 2-1. Unit Specifications

    8
  • 2-2. Major Component Specifications

    17
  • 2-3. Other Component Specifications

    20
• 3. DIMENSIONAL DATA

  21
• 4. REFRIGERANT FLOW DIAGRAM

  24
  • 4-1. Refrigerant Flow Diagram

    24
• 5. PERFORMANCE DATA

  27
  • 5-1. Temperature Charts

    27
  • 5-2. Cooling Capacity

    50
  • 5-3. Cooling Capacity (Low Ambient)

    56
• 6. ELECTRICAL DATA

  62
  • 6-1. Electric Wiring Diagrams

    62
• 7. FUNCTIONS

  65
  • 7-1. Explanation of Functions

    65
  • 7-2. Protective Functions

    69
• 8. TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)

  71
  • 8-1. Precautions before Performing Inspection or Repair

    71
  • 8-2. Trouble Diagnosis by Error Monitor Lamps

    72
  • 8-3. Checking the Outdoor System

    73
  • 8-4. Trouble Diagnosis of Each Part

    74
  • 8-5. Trouble Diagnosis of Fan Motor

    78
• 9. REFRIGERANT R410A:SPECIAL PRECAUTIONS WHEN SERVICING UNIT

  79
  • 9-1. Characteristics of New Refrigerant R410A

    79
  • 9-2. Checklist before Servicing

    80
  • 9-3. Tools Specifically for R410A

    81
  • 9-4. Tubing Installation Procedures

    81
  • 9-5. In Case of Compressor Malfunction

    82
  • 9-6. In Case Refrigerant is Leaking

    84
  • 9-7. Charging Additional Refrigerant

    85
  • 9-8. Retro-Fitting Existing Systems

    85
• APPENDIX A: INSTALLATION INSTRUCTIONSCU-3KS19NBUCU-4KS24NBUCU-4KS31NBU(852-6-4190-581-00-1)

  86