Panasonic CU-MC140KE - User Manual

Service Manual
Multi-Split Air Conditioner
Contents
● Features ..........................................................1
● Functions ...................................................2 – 4
● Product Specifications .............................5 – 10
● Dimensions ............................................11 – 12
● Refrigeration Cycle Diagram .........................13
● Block Diagram .......................................14 – 16
● Wiring Diagram ......................................17 – 19
● Operation Details ...................................20 – 26
● Installation Information ..........................27 – 28
● 3-way Valve ...........................................29 – 35
● Servicing Information .............................36 – 39
● Troubleshooting Guide ..........................40 – 41
● Technical Data.......................................42 – 44
● Exploded View .............................45, 47, 49, 51
● Replacement Parts List ...............46, 48, 50, 52
● Electronic Parts List ...............................53 – 54
CS-MC90KE / CU-MC140KE
CS-MC90KE / CU-MC180KE
CS-MC90KE / CU-3MC200KE
ORDER NO. MAC9702008C2
 1997 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T)
All rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
Untitled-22 6/25/00, 5:27 PM1

Summary

Features

Functions

Remote Control

Details operation and settings using the remote control unit.

Indoor Unit

Explains functions, indicators, and controls of the indoor unit itself.

Outdoor Unit

Outlines protective controls and operation details for the outdoor unit.

Product Specifications

Dimensions

CS-MC90 KE Indoor Unit Dimensions

Provides detailed measurements and diagrams for the CS-MC90KE indoor unit.

Outdoor Unit Dimensions

Shows dimensions for CU-MC140KE, CU-MC180KE, and CU-3MC200KE outdoor units.

Refrigeration Cycle Diagram

CS-MC90 KE; CU-MC140 KE Diagram

Illustrates the refrigeration cycle for CS-MC90KE / CU-MC140KE models.

CS-MC90 KE; CU-MC180 KE Diagram

Illustrates the refrigeration cycle for CS-MC90KE / CU-MC180KE models.

CS-MC90 KE; CU-3 MC200 KE Diagram

Illustrates the refrigeration cycle for CS-MC90KE / CU-3MC200KE models.

Block Diagram

CS-MC90 KE; CU-MC140 KE Block Diagram

Electrical system overview for CS-MC90KE / CU-MC140KE units.

CS-MC90 KE; CU-MC180 KE Block Diagram

Electrical system overview for CS-MC90KE / CU-MC180KE units.

CS-MC90 KE; CU-3 MC200 KE Block Diagram

Electrical system overview for CS-MC90KE / CU-3MC200KE units.

Wiring Diagram

CS-MC90 KE; CU-MC140 KE Wiring Diagram

Electrical schematic for CS-MC90KE / CU-MC140KE units.

CS-MC90 KE; CU-MC180 KE Wiring Diagram

Electrical schematic for CS-MC90KE / CU-MC180KE units.

CS-MC90 KE; CU-3 MC200 KE Wiring Diagram

Electrical schematic for CS-MC90KE / CU-3MC200KE units.

Operation Details

Cooling Mode Operation

Explains how the unit operates in cooling mode, including controls.

Soft Dry Mode Operation

Details the unit's operation in Soft Dry mode, fan speeds, and timings.

Air Circulation Mode Operation

Describes the air circulation mode and its stopping conditions.

Automatic Mode Operation

Explains how the unit automatically determines operation mode and temperature.

Indoor Fan Speed Control

Covers auto and manual fan speed adjustments for user comfort.

Airflow Direction Control

Details auto and manual airflow direction adjustments for optimal comfort.

Installation Information

Attached Accessories

Lists all accessories provided with the unit for installation purposes.

Selecting the Best Location

Guidelines for choosing optimal installation locations for indoor and outdoor units.

Installation Diagram

Illustrates the physical setup and connections for indoor and outdoor units.

3-way Valve

Liquid Side Valve

Description and diagram of the 3-way valve for the liquid side.

Gas Side Valve

Description and diagram of the 3-way valve for the gas side.

Servicing Information

Indoor Electronic Controller Inspection

Points for inspecting the indoor electronic controller and related parts.

Indoor Fan Motor Removal

Step-by-step guide for removing the indoor fan motor.

Cross Flow Fan Removal

Instructions for removing the cross flow fan assembly.

Solenoid Control Valve Operation

Details auto/manual operation modes for the solenoid control valve.

Wireless Remote Control Code Change

Procedure for changing remote control transmission codes for dual units.

Troubleshooting Guide

Refrigeration Cycle Diagnosis

Guide to diagnosing issues by measuring temperatures and pressures.

Pressure and Current Relationship

Relates unit conditions, pressure, and electric current to identify faults.

Compressor Malfunction Diagnosis

Methods for diagnosing compressor malfunctions based on symptoms.

Technical Data

Thermostat Characteristics

Graphs showing thermostat behavior for Cooling and Soft Dry modes.

Operation Characteristics

Performance data graphs for cooling capacity, current, and pressure.

Exploded View

CS-MC90 KE Exploded View

Diagram showing the assembly breakdown of the CS-MC90KE indoor unit.

CU-MC140 KE Exploded View

Diagram showing the assembly breakdown of the CU-MC140KE outdoor unit.

CU-MC180 KE Exploded View

Diagram showing the assembly breakdown of the CU-MC180KE outdoor unit.

CU-3 MC200 KE Exploded View

Diagram showing the assembly breakdown of the CU-3MC200KE outdoor unit.

Electronic Parts List

Electronic Controller (CWA74813)

Part numbers for components of the CWA74813 electronic controller.

Electronic Controller (CWA741123, CWA741165)

Part numbers for components of CWA741123 & CWA741165 controllers.

Panasonic CU-MC140KE Specifications

General

Brand	Panasonic
Model	CU-MC140KE
Category	Air Conditioner
Language	English