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Mitsubishi Heavy Industries KX6 series User Manual

Mitsubishi Heavy Industries KX6 series
216 pages
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(OUTDOOR UNIT)
KX6 series
FDC224KXE6, 280KXE6, 335KXE6
FDC224KXE6M, 280KXE6M, 335KXE6M
FDCS224KXE6M, 280KXE6M, 335KXE6M (Corrosin Protection Treatment series)
(Heat pump type)
Manual No. '10
KX-SM-148
SERVICE MANUAL
Regarding the Duct Connected-High static Pressure-type Outdoor Air Processing Unit
Series (FDU5001800FKXE6D), refer to the DATA BOOK No.'10 KX-DB-144
Note:
VRF INVERTER MULTI-SYSTEM AIR CONDITIONERS
Alternative refrigerant R410A use models
FDT28KXE6D
FDT36KXE6D
FDT45KXE6D
FDT56KXE6D
FDT71KXE6D
FDT90KXE6D
FDT112KXE6D
FDT140KXE6D
FDT160KXE6D
FDTC22KXE6D
FDTC28KXE6D
FDTC36KXE6D
FDTC45KXE6D
FDTC56KXE6D
FDU224KXE6D
FDU280KXE6D
FDTW28KXE6D
FDTW45KXE6D
FDTW56KXE6D
FDTS45KXE6D
FDTS71KXE6D
FDTQ22KXE6D
FDTQ28KXE6D
FDTQ36KXE6D
(INDOOR UNIT)
-
KX6 series
-
FDFW28KXE6D
FDFW45KXE6D
FDFW56KXE6D
FDU500FKXE6D
FDU850FKXE6D
FDU1300FKXE6D
FDU1800FKXE6D
FDUM22KXE6D
FDUM28KXE6D
FDUM36KXE6D
FDUM45KXE6D
FDUM56KXE6D
FDUM71KXE6D
FDUM90KXE6D
FDUM112KXE6D
FDUM140KXE6D
FDUT22KXE6D
FDUT28KXE6D
FDUT36KXE6D
FDUT45KXE6D
FDUT56KXE6D
FDK22KXE6D
FDK28KXE6D
FDK36KXE6D
FDK45KXE6D
FDK56KXE6D
FDK71KXE6D
FDUH22KXE6D
FDUH28KXE6D
FDUH36KXE6D
FDE36KXE6D
FDE45KXE6D
FDE56KXE6D
FDE71KXE6D
FDE112KXE6D
FDE140KXE6D
60Hz only
INVERTER DRIVEN MULTI-INDOOR-UNIT
CLIMATE CONTROL SYSTEM
Air-Conditioning & Refrigeration Systems Headquarters
16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan
Fax : (03) 6716-5926
No.108 R

Table of Contents

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Mitsubishi Heavy Industries KX6 series Specifications

General IconGeneral
BrandMitsubishi Heavy Industries
ModelKX6 series
CategoryAir Conditioner
LanguageEnglish

Summary

Outline of Operation Control by Microcomputer

1.1 Wired Remote Controller (Option Parts)

Details the functions and display elements of the wired remote controller for system operation.

1.2 Operation Control Function by the Indoor Controller

Explains functional items and modes like cooling, heating, fan, and dehumidifying operations.

1.3 Operation Control Function by the Remote Controller

Outlines mode switching sequences, CPU reset, and power failure compensation functions.

1.4 Operation Control Function by the Outdoor Controller

Details normal control operations of major components across cooling, dehumidifying, fan, and heating modes.

System Troubleshooting Procedure

2.1 Basics of Troubleshooting

Covers basic troubleshooting steps, including error data analysis and initial checks for operational issues.

2.2 Explanation of Troubleshooting

Provides procedures for checking 15V on the control PCB and inspecting power transistor module terminals for shorts.

2.3 Contents of Troubleshooting

Lists various error codes for indoor and outdoor units, their classifications, and corresponding page numbers for detailed inspection.

2.4 Outdoor Unit Control PCB Replacement Procedure

Details safety precautions and step-by-step instructions for replacing the outdoor unit control PCB.

2.5 Inverter PCB Replacement Procedure

Outlines safety precautions and the procedure for replacing the inverter PCB, including switch settings.

Electrical Wiring

3.1 Outdoor Unit

Provides wiring diagrams and component layouts for the outdoor unit, including connection points for various parts.

3.2 Indoor Unit

Presents wiring diagrams for different indoor unit types like Ceiling cassette, Duct, Wall mounted, etc.

Piping System

4.1 Installation of Indoor Unit

Covers general installation guidelines, selection of location, preparation, and unit installation for various indoor unit types.

4.2 Drain pipe

Details installation procedures, precautions, and work steps for drain pipes, including gravity drainage and pump operation.

4.4 Check List after Installation

Provides a checklist of items to verify after completing the installation work to ensure proper functioning.

4.5 Refrigerant pipe

Covers refrigerant pipe installation, including precautions, work procedures, and pipe size selection based on capacity.

4.3 Wiring-out Position and Wiring Connection

Explains electrical wiring connections for indoor units, including power source, signal lines, and remote controller connections.

Application Data

5.1 Installation of Indoor Unit

Covers general installation guidelines, selection of location, preparation, and unit installation for various indoor unit types.

5.2 Electrical Wiring Work Instruction

Explains electrical wiring work, including safety precautions, wiring specifications, and connection procedures.

5.3 Installation Manual for Wired Remote Controller (Option Parts : RC-E4)

Guides the installation and wiring of wired remote controllers, including master/slave settings and cable specifications.

5.4 Installation of Outdoor Unit

Details the installation process for the outdoor unit, including delivery, unit placement, and refrigerant piping.

5.5 Method for Connecting the Accessory Pipe

Explains the correct method for connecting accessory pipes, including pipe size selection and brazing procedures.

5.6 Check Operation Procedure

Outlines the steps for performing an operational check, including preliminary checks, auto checking, and troubleshooting measures.

5.7 Instructions for Installing the Branch Pipe Set (Option)

Provides instructions for installing optional branch pipe sets, including pipe sizing and connection procedures.

Corrosion Protection Treatment Series

6.1 KX6 Outdoor Series

Describes special coating treatments applied to the KX6 outdoor series to prevent salt corrosion from sea breeze.

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