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Panasonic CU-3KE19NBU User Manual

Panasonic CU-3KE19NBU
124 pages
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IMPORTANT
These air conditioners employ new
refrigerant R410A.
Pay special attention when
servicing the unit.
Wall mounted type
CS-MKE7NKU
CS-MKE9NKU
CS-MKE12NKU
CS-MKE18NKU
CS-MKE24NKU
< Applicable Indoor Units >
TECHNICAL & SERVICE MANUAL
OUTDOOR UNIT : CU-3KE19NBU
CU-4KE24NBU
CU-4KE31NBU
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
Product Code No.
1 852 361 27
1 852 361 28
1 852 361 29
REFERENCE NO.
SM700878
Capacity at 230V
19,100 BTU/h
23,200 BTU/h
30,600 BTU/h
Outdoor Model No.
CU-3KE19NBU
CU-4KE24NBU
CU-4KE31NBU
CU-3KE19NBU
CU-4KE24NBU
CU-4KE31NBU
Semi-concealed type
CS-MKE9NB4U & CZ-18BT1U
CS-MKE12NB4U & CZ-18BT1U
CS-KE12NB4UW & CZ-18BT1U

Table of Contents

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Panasonic CU-3KE19NBU Specifications

General IconGeneral
BrandPanasonic
ModelCU-3KE19NBU
CategoryAir Conditioner
LanguageEnglish

Summary

SAFETY PRECAUTIONS

General Safety Precautions

Covers critical safety warnings and general precautions for safe operation and repair.

REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT

Characteristics of New Refrigerant R410A

Properties, composition, and handling of R410A refrigerant.

Servicing Procedures and Tools for R410A

Covers checklist, tools, tubing procedures, compressor replacement, leak checks, and charging.

APPLICABLE INDOOR UNITS

1. OPERATING RANGE

2. SPECIFICATIONS

Unit Specifications

Detailed technical data for the outdoor unit, including electrical and dimensional specs.

Major Component Specifications

Details on key components like compressor, fan motor, and heat exchanger.

Other Component Specifications

Specifications for sensors and other miscellaneous components.

3. DIMENSIONAL DATA

4. REFRIGERANT FLOW DIAGRAM

Refrigerant Flow Diagram

Schematic of refrigerant flow for CU-3KE19NBU model.

5. PERFORMANCE DATA

Temperature Charts

Performance charts for cooling/heating at various temperatures.

Cooling Capacity

Tables showing cooling capacity based on indoor/outdoor temperatures.

Heating Capacity

Tables showing heating capacity based on indoor/outdoor temperatures.

6. ELECTRICAL DATA

Electric Wiring Diagrams

Wiring diagrams for the CU-3KE19NBU outdoor unit.

7. FUNCTIONS

Function Explanations and Protective Functions

Details operational logic for modes and system protection mechanisms.

8. TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)

Precautions Before Inspection or Repair

Safety advice for handling electronic circuits and high-capacity capacitors.

Trouble Diagnosis Methods

Covers error lamp codes, system checks, and part diagnosis.

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