Panasonic CU-C123KE - User Manual

Service Manual
Room Air Conditioners
Contents
● Features ..........................................................1
● Functions ...................................................2 – 4
● Product Specifications .............................5 – 10
● Dimensions ............................................11 – 12
● Refrigeration Cycle Diagram .........................13
● Block Diagram ............................................... 14
● Wiring Diagram ..............................................15
● Operation Details ...................................16 – 23
● Installation Information ..........................24 – 25
● 2-way, 3-way Valves..............................26 – 32
● Servicing Information .............................33 – 36
● Troubleshooting Guide ..........................37 – 38
● Technical Data.......................................39 – 40
● Exploded View ...................................41, 43, 45
● Replacement Parts List .....................42, 44, 46
● Electronic Parts List .......................................47
CS-C73KE / CU-C73KE
CS-C93KE / CU-C93KE
CS-C123KE / CU-C123KE
ORDER NO. MAC9810034C2
 1998 Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D)
All rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
Untitled-2 6/28/00, 5:22 PM1

Summary

Features

Functions

Indoor Unit Functions

Outdoor Unit Functions

Product Specifications

Refrigeration Cycle Diagram

Block Diagram

Wiring Diagram

Operation Details

Cooling Mode Operation

Details the cooling operational sequence and controls.

Soft Dry Mode Operation

Explains the soft dry operational mode and its timing.

Installation Information

Location Selection

Provides guidance on choosing optimal installation locations for units.

2-way, 3-way Valves

Evacuation of Installation

Procedure for removing air from refrigeration circuit during installation.

Pumping down

Process for transferring refrigerant to the outdoor unit.

Evacuation of Re-installation

Procedure for evacuating air during unit re-installation.

Balance Refrigerant

Procedure for balancing refrigerant levels in the cycle.

Gas Charging

Steps for charging the system with refrigerant after evacuation.

Servicing Information

Indoor Electronic Controller Inspection

Steps to access and inspect the indoor unit's electronic controller.

Indoor Fan Motor Removal

Steps for removing the indoor fan motor.

Cross Flow Fan Removal

Troubleshooting Guide

Refrigeration Cycle Troubleshooting

Diagnosing issues related to the refrigeration cycle and pressures.

Compressor Malfunction Diagnosis

Methods to diagnose compressor faults based on symptoms.

Panasonic CU-C123KE Specifications

General

Brand	Panasonic
Model	CU-C123KE
Category	Air Conditioner
Language	English