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Panasonic CU-Z20TKE User Manual

Panasonic CU-Z20TKE
197 pages
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© Panasonic Corporation 2017.
Order No: PAPAMY1701023CE
Indoor Unit Outdoor Unit
CS-Z20TKEW
CS-Z25TKEW
CS-Z35TKEW
CS-Z42TKEW
CS-Z50TKEW
CS-Z71TKEW
CS-XZ20TKEW
CS-XZ25TKEW
CS-XZ35TKEW
CS-XZ50TKEW
CU-Z20TKE
CU-Z25TKE
CU-Z35TKE
CU-Z42TKE
CU-Z50TKE
CU-Z71TKE
CU-Z20TKE
CU-Z25TKE
CU-Z35TKE
CU-Z50TKE
Destination
Europe
Turkey
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the products dealt with in this service information by anyone else could result in serious injury or death.
IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturer’s specified
parts to prevent shock, fire or other hazards. Do not modify the original design without permission of
manufacturer.
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
CAUTION
R32 REFRIGERANT – This Air Conditioner contains and operates with refrigerant R32.
THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL.
Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the
installation, maintenance and/or service of this product.
AMP Air Conditioning
www.ampair.co.uk | sales@ampair.co.uk

Table of Contents

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Panasonic CU-Z20TKE Specifications

General IconGeneral
BrandPanasonic
ModelCU-Z20TKE
CategoryAir Conditioner
LanguageEnglish

Summary

Safety Precautions

General Safety Guidelines

Key safety precautions, warnings, and prohibited actions.

Safety Symbol Explanations

Explains safety symbols used on units and in manuals.

R32 Refrigerant Precautions

R32 Refrigerant Safety Warnings

Warnings regarding R32 refrigerant properties, pressure, and handling.

Installation and Servicing Cautions

Cautions for installation space and servicing procedures with R32.

Product Specifications

Cooling and Heating Performance Data

Detailed performance data for cooling and heating modes.

Unit Dimensions and Components

Physical dimensions and component specifications.

Piping and Operational Specifications

Details on piping, heat exchangers, filters, and operating ranges.

Features

Inverter and Environmental Features

Information on inverter technology and R32 refrigerant.

Operational and Quality Features

Highlights quality improvements and operational modes.

Serviceability Features

Features related to maintenance and diagnostics.

Controls and Components

Indoor Unit Controls

Location and identification of indoor unit controls.

Outdoor Unit Components

Identification of outdoor unit components.

Remote Control Functions

Overview of remote control buttons and display.

Dimensions

Indoor Unit Dimensions

Detailed measurement diagrams for indoor units.

Outdoor Unit Dimensions

Detailed measurement diagrams for outdoor units.

Refrigeration Cycle Diagram

Refrigeration Cycle (Z20-Z42 Models)

Diagram of the refrigeration cycle for specific models.

Refrigeration Cycle (Z50-Z71 Models)

Diagram of the refrigeration cycle for specific models.

Block Diagrams

Block Diagram (Z20TKEW/Z20TKE)

Electrical block diagram for Z20TKEW/Z20TKE units.

Block Diagram (Z25-Z50TKEW/Z35-Z71TKE)

Electrical block diagram for Z25-Z50TKEW/Z35-Z71TKE units.

Block Diagram (Z42TKEW/Z42TKE)

Electrical block diagram for Z42TKEW/Z42TKE units.

Wiring and Circuit Diagrams

Indoor Unit Wiring Diagram

Detailed wiring connections for the indoor unit.

Indoor Unit Electronic Circuit

Detailed electronic circuit diagram for the indoor unit.

Outdoor Unit Wiring and Circuit

Wiring and electronic circuit details for the outdoor unit.

Printed Circuit Board Details

Indoor Unit PCB Layouts

Diagrams of indoor unit printed circuit boards.

Outdoor Unit PCB Layouts

Diagrams of outdoor unit printed circuit boards.

Installation Instructions

Location Selection and Unit Installation

Guidelines for choosing installation location and basic steps.

Indoor Unit Installation Procedures

Detailed steps for installing the indoor unit.

Piping Connection and Evacuation

Instructions for connecting piping and evacuating the system.

Outdoor Unit Installation Procedures

Detailed steps for installing the outdoor unit.

R32 Refrigerant Installation and Servicing

R32 Refrigerant Characteristics

Properties and characteristics of R32 refrigerant.

Piping Installation Tools and Procedures

Tools and steps for refrigerant piping installation.

Refrigerant Cycle Repair and Brazing

Techniques for repairing refrigerant cycles, including brazing.

Troubleshooting Refrigerant Cycle

Methods for diagnosing issues in the refrigerant cycle.

Operation Controls

Basic Operation and Fan Motor Control

Overview of basic functions, fan speed, and operation modes.

Airflow Direction Adjustment

How to control vertical and horizontal airflow directions.

Special Operation Modes

Explanation of Quiet, Powerful, Timer, and Sleep operations.

ECONAVI and Sensor Operations

Details on ECONAVI, Human Activity, and Sunlight sensors.

Multi Split Operation Controls

Cooling and Heating Controls (Multi Split)

Operation controls specific to multi-split configurations.

Protection Controls

General Operation Protections

Controls for restart, running current, and IPM overheating.

Cooling and Soft Dry Protections

Protection mechanisms for cooling and soft dry modes.

Heating Operation Protections

Protection mechanisms for heating operations.

Servicing Modes and Controls

Auto OFF/ON Button Functions

Using the Auto OFF/ON button for service and mode selection.

Heat Only Operation

Procedure to enable/disable heat-only operation.

Remote Control Special Settings

Functions for resetting, changing display, and special settings.

Troubleshooting Guide

Refrigeration Cycle Issues

Diagnosing problems within the refrigeration cycle.

Self-Diagnosis and Error Codes

Steps for self-diagnosis and interpreting error codes.

Error Codes Table

A list of error codes and their corresponding problems and checks.

Disassembly and Assembly

Indoor Unit Disassembly

Instructions for taking apart indoor unit components.

Outdoor Unit Controller Removal

Procedure to remove the electronic controller from outdoor units.

Technical Data

Cool Mode Performance Data

Tables of performance data for cooling operations.

Heat Mode Performance Data

Tables of performance data for heating operations.

Service Data

Cool Mode Outdoor Air Temp. Characteristics

Graphs showing performance metrics vs. outdoor air temp in cool mode.

Heat Mode Outdoor Air Temp. Characteristics

Graphs showing performance metrics vs. outdoor air temp in heat mode.

Piping Length Correction Factors

Factors to adjust capacity based on piping length.

Exploded Views and Parts Lists

Indoor Unit Parts List

Exploded view and part numbers for indoor units.

Outdoor Unit Parts List

Exploded view and part numbers for outdoor units.

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