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Panasonic CU-A125KE User Manual

Panasonic CU-A125KE
98 pages
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1 Features 2
2 Functions
3
3 Product Specifications
6
4 Dimensions
12
5 Refrigeration Cycle Diagram
14
6 Block Diagram
15
7 Wiring Diagram
16
8 Operation Details
17
9 Operating Instructions
33
10 Installation Instructions
57
11 2-way, 3-way Valve
66
© 2000 Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D) All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-A75KE CU-A75KE
CS-A95KE CU-A95KE
CS-A125KE CU-A125KE
12 Servicing Information 73
13 Troubleshooting Guide
76
14 Technical Data
78
15 Exploded View
83
16 Replacement Parts List
84
17 Exploded View
85
18 Replacement Parts List
86
19 Exploded View
87
20 Replacement Parts List
88
21 Electronic Parts List
89
22 Electronic Circuit Diagram
90
Room Air Conditioner
CONTENTS
Page Page
Order No: MAC0010049C2

Table of Contents

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Panasonic CU-A125KE Specifications

General IconGeneral
RefrigerantR410A
Power Supply220-240V, 50Hz
Compressor TypeRotary
Outdoor Unit Dimensions (W x H x D)780 x 540 x 285 mm
Outdoor Noise Level52 dB(A)

Summary

1 Features

Key Features Overview

Highlights efficiency, comfort, quality, and operational improvements.

2 Functions

Remote Control and Mode Selection

Explains the remote control layout and how to select operation modes.

Indoor Unit Operations

Automatic Operation, Sleep Mode, and Controls

Details on manual override, sleep mode, and various operational controls.

Outdoor Unit Protections

Compressor, Fan, and Deice Protection

Covers reverse rotation, overload, and deice control mechanisms.

3 Product Specifications

Performance Metrics and Electrical Data

Specifications for capacity, airflow, noise, and electrical requirements.

Product Specifications (Continued)

Component Specifications Overview

Details on compressor, heat exchanger, and other component specifications.

4 Dimensions

Indoor Unit Dimensional Drawings

Front, side, and back views with measurement details.

Dimensions (Continued)

Outdoor Unit Installation Space Requirements

Diagrams showing required clearance and mounting for outdoor units.

5 Refrigeration Cycle Diagram

System Flow and Component Identification

Illustrates the refrigerant path and key components.

6 System Block Diagram

Electrical and Control Signal Flow

Shows connections between indoor and outdoor units.

7 Wiring Diagram

Electrical Schematics and Resistance Values

Diagrams and resistance data for motors and compressor.

8 Operation Details

Cooling Mode Operation and Safety Controls

Details on time delay, compressor protection, and anti-freezing.

Operation Details (Continued)

Compressor Protection and Fan Speed Modes

Covers compressor safeguards and automatic fan speed.

Cooling Operation Time Diagram

Timing Sequence for Cooling Cycle

Illustrates the operational timing of components.

Soft Dry Mode Operation

Soft Dry Mode Controls and Timing

Details operation, fan speed, and safety controls for Soft Dry.

Soft Dry Operation Time Diagram

Timing Sequence for Soft Dry Cycle

Illustrates the operational timing for Soft Dry mode.

Heating Mode Operation

Heating Mode Controls and Safety Features

Details on time delay, overload, and hot start controls.

Heating Mode Features

Hot Start and Anti Cold Draft Control

Manages initial heating and prevents cold air drafts.

Automatic Mode Operation

Automatic Fan Speed and Heating Diagrams

Covers auto fan speed and heating time diagrams.

Deicing Control

Normal and Overload Deicing Procedures

Covers deicing triggers, duration, and termination conditions.

Deicing Time Diagrams

Normal and Overload Deicing Timing Sequences

Illustrates timing for deicing operations.

Automatic Mode Operation Details

Mode Determination and Temperature Settings

Explains mode selection criteria and automatic temperature adjustments.

Convenience Operations

Sleep Mode, Auto Restart, and Timer Control

Describes sleep mode, power failure restart, and timer functions.

Indoor Fan Speed Control

Auto and Manual Fan Speed Settings

Covers auto fan speed operation and manual adjustment.

Airflow Direction Control

Vertical and Horizontal Airflow Adjustment

Details manual and automatic control of louvers.

Economy Mode Operation

Economy Mode for Cooling and Heating

Power saving features and operation details.

Powerful Mode Operation

Powerful Mode for Rapid Temperature Attainment

Features for quickly reaching desired temperatures.

9 Operating Instructions

Safety Precautions and Symbols

General warnings, prohibitions, and compulsory actions.

Operating Precautions

Electrical Safety and Handling Warnings

Precautions for plug insertion, repair, and wet conditions.

General Cautions

Usage and Maintenance Cautions

Warnings regarding cleaning, ventilation, and unit placement.

NAME OF EACH PART

Indoor Unit Components Identification

Labels for parts of the indoor unit assembly.

Outdoor Unit and Accessories

Outdoor Unit Components and Accessories List

Identification of outdoor unit parts and included items.

Remote Control Operation

Remote Control Layout and Usage Guide

Explains buttons, display, and basic operational guidance.

Remote Control Usage Details

Using the Remote Control and Back Cover

Guidance on aiming, distance, and accessing the back cover.

PREPARATION BEFORE OPERATION

Indoor Unit Preparation Steps

Steps for powering and opening the unit before use.

Remote Control Setup

Battery Insertion and Clock Setting

Instructions for installing batteries and setting the current time.

HOW TO OPERATE

Selecting Operation Modes and Starting Unit

Guide to selecting Automatic, Cooling, Soft Dry modes and starting operation.

Adjusting Airflow and Fan Speed

Fan Speed and Airflow Direction Control

Controlling fan speed and louver positions.

SETTING THE TIMER

Setting and Canceling Timer Operations

Procedure for setting ON/OFF timers and canceling them.

Timer Usage Recommendations

Examples for Timer Settings

Scenarios for effective timer utilization.

CONVENIENCE OPERATION: SLEEP MODE

Sleep Mode Operation Adjustments

Describes temperature and fan adjustments for sleep comfort.

Economy and Powerful Mode Operation

Power Saving and Rapid Cooling Features

Details on economy and powerful modes for energy saving and speed.

CARE AND MAINTENANCE

Cleaning Indoor Unit and Air Filters

Procedures for cleaning the indoor unit and air filters.

Cleaning the Front Panel

Removing and Washing the Front Panel

Steps for removing and washing the front panel.

Replacing the Air Purifying Filters

Filter Replacement Procedure and Notes

Guidance on air purifying filter replacement frequency and notes.

Pre-season Inspection and Storage

Inspection and Long-Term Storage Steps

Checks before seasonal operation and preparation for storage.

TROUBLESHOOTING GUIDE

Normal Operation Issues and Solutions

Diagnosing common sounds and operational anomalies.

Troubleshooting (Continued)

Abnormal Operation and Dealer Contact

Identifying critical issues requiring professional service.

HELPFUL INFORMATION

Auto Operation, Restart, and Protection Features

Using auto mode, restart after power failure, and lightning protection.

ENERGY SAVING AND OPERATION HINTS

Efficiency Tips and Usage Recommendations

Maximizing efficiency through settings and environment control.

10 Installation Instructions

Required Tools and Safety Precautions

Essential safety guidelines and necessary tools for installation.

Installation Precautions and Location

Cautions, Attention, and Location Selection

Warnings for installation and guidance for choosing the best location.

Installation: Components and Indoor Unit Prep

Attached Accessories and Indoor Unit Installation

List of accessories and steps for indoor unit mounting.

Indoor Unit Installation Procedures

Fixing Plate, Drilling Hole, and Unit Mounting

Steps for installing the plate, creating openings, and mounting the unit.

Indoor Unit Installation (Piping and Cables)

Connecting Piping, Drain Hose, and Cables

Procedures for connecting pipes, drain, and electrical cables.

Outdoor Unit Installation

Selecting Location and Connecting Piping

Guidance for outdoor unit placement and pipe connections.

Piping and Evacuation Procedures

Cutting, Flaring Piping, and Evacuation

Techniques for preparing pipes and evacuating the system.

11 Valve and Refrigerant Handling

2-way and 3-way Valve Operations

Shaft positions for shipping, operation, and servicing.

Evacuation of Installation

Installation Evacuation Procedure

Detailed steps for vacuuming the system during installation.

Pumping Down Procedure

Steps for Pumping Down Refrigerant

Process for recovering refrigerant before disconnection.

Balance Refrigerant Procedure

Balancing Refrigerant Levels

Procedure for managing refrigerant levels using valves.

Evacuation (No Refrigerant)

Evacuation Procedure for Empty System

Steps for evacuating an empty refrigeration cycle.

Gas Charging Procedure

Charging Refrigerant into the System

Steps for adding refrigerant to the system.

12 Servicing Information

Indoor Unit Component Removal

Steps for removing electronic controller and fan motor.

Servicing Procedures (Continued)

Cross Flow Fan Removal Procedure

Steps for removing the cross-flow fan assembly.

Remote Control Servicing

Remote Control Reset and Code Change

Procedures for resetting the remote and changing transmission codes.

13 Troubleshooting Guide

Refrigeration Cycle Diagnostics

Methods for diagnosing issues based on pressure and temperature.

Troubleshooting (Continued)

Compressor and Valve Fault Diagnosis

Identifying malfunctions of key components.

14 Technical Data

Thermostat Characteristics

Data on temperature settings and compressor activation points.

Technical Data (Continued)

Sensible Capacity Charts

Tables showing cooling/heating capacity and input power.

Operation Characteristics: CS-A75KE

Performance Curves vs. Temperature and Piping Length

Graphs showing capacity and current based on conditions.

Operation Characteristics: CS-A95KE

Performance Curves vs. Temperature and Piping Length

Graphs showing capacity and current based on conditions.

Operation Characteristics: CS-A125KE

Performance Curves vs. Temperature and Piping Length

Graphs showing capacity and current based on conditions.

15 Exploded View: Indoor Unit

Indoor Unit Parts Identification Diagram

Diagram showing numbered components for disassembly.

16 Replacement Parts List: Indoor Unit

Indoor Unit Parts Numbers and Descriptions

Detailed lists of part numbers for indoor unit components.

17 Exploded View: Outdoor Unit (CU-A75KE/A95KE)

Outdoor Unit (CU-A75KE/A95KE) Parts Diagram

Diagram showing numbered components for disassembly.

18 Replacement Parts List: Outdoor Unit (CU-A75KE/A95KE)

Outdoor Unit (CU-A75KE/A95KE) Parts List

Detailed lists of part numbers for outdoor unit components.

19 Exploded View: Outdoor Unit (CU-A125KE)

Outdoor Unit (CU-A125KE) Parts Diagram

Diagram showing numbered components for disassembly.

20 Replacement Parts List: Outdoor Unit (CU-A125KE)

Outdoor Unit (CU-A125KE) Parts List

Detailed lists of part numbers for outdoor unit components.

21 Electronic Parts List

Controller Board Component Numbers

List of electronic components and their part numbers.

22 Electronic Circuit Diagram

Main Unit Schematic Diagram

Detailed circuit diagram for the main unit.

Electronic Circuit Diagram (Part 2)

Integrated Circuits and Driver Schematics

Schematics for ICs, transistors, and driver circuits.

Electronic Circuit Diagram (Part 3)

Power Supply and Component Connections

Diagrams for power supply, relays, and sensors.

Circuit Diagram Usage Guide

Timer Table and Notation Symbols

Explains timer functions and diagram notations.

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