Mitsubishi Heavy Industries FDTQ22KXE6F User Manual

TECHNICAL MANUAL
Manual No.'20 • KX-T-347
•
Note:
(INDOOR UNIT)
VRF INVERTER MULTI-SYSTEM
AIR-CONDITIONERS
Ceiling cassette-1 way compact type
Duct connected (thin)-Low static pressure type
Duct connected-Compact and flexible type
FDUH22KXE6F
28KXE6F
36KXE6F
(1) This document describes the indoor units with service code /F (with motion sensor system
function).
FDTQ22KXE6F
28KXE6F
36KXE6F
FDUT15KXE6F-E
22KXE6F-E
28KXE6F-E
36KXE6F-E
45KXE6F-E
56KXE6F-E

Mitsubishi Heavy Industries FDTQ22KXE6F Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDTQ22KXE6F
Category	Air Conditioner
Language	English

Summary

INFORMATION

1.1 Model description

Explains the model naming convention and lists the series, capacity, and unit types.

1.2 1.5kW-indoor units connection

Details compatibility with outdoor units and installation limitations for 1.5kW indoor units.

SPECIFICATIONS

(1) Ceiling cassette-1 way compact type (FDTQ)

Provides detailed specifications for FDTQ series ceiling cassette indoor units.

(2) Duct connected (Thin) -Low static pressure type (FDUT)

Lists specifications for FDUT series thin low static pressure duct indoor units.

(3) Duct connected - Compact and flexible type (FDUH)

Details specifications for FDUH series compact and flexible duct indoor units.

EXTERIOR DIMENSIONS

3.1 Indoor unit

Presents dimensional drawings and data for various indoor unit types.

3.2 Remote control (Option parts)

Shows dimensions and installation space for wired and wireless remote controls.

ELECTRICAL WIRING

(1) Ceiling cassette-1 way compact type (FDTQ)

Illustrates wiring diagrams for FDTQ direct blow type indoor units.

(b) Duct type

Provides wiring diagrams for duct type indoor units.

(3) Duct connected(Compact and flexible) type (FDUH)

Shows wiring diagrams for FDUH compact and flexible duct indoor units.

NOISE LEVEL

(1) Ceiling cassette-1 way compact type (FDTQ)

Presents sound pressure level data for FDTQ units in octave bands.

(2) Duct connected (thin)-Low static pressure type (FDUT)

Details sound pressure level data for FDUT units in octave bands.

CHARACTERISTICS OF FAN

(1) Ceiling cassette-1 way compact type (FDTQ)

Displays fan performance curves (airflow vs. external static pressure) for FDTQ units.

(2) Duct connected (thin)-Low static pressure type (FDUT)

Shows fan performance curves for FDUT units across various models.

CAPACITY TABLES

(1) Ceiling cassette-1 way compact type (FDTQ)

Lists cooling and heating capacities for FDTQ units under various conditions.

(2) Duct connected (thin)-Low static pressure type (FDUT)

Provides capacity data for FDUT units across different models and operating conditions.

(3) Duct connected (Compact and flexible type (FDUH))

Details capacity tables for FDUH units, covering cooling and heating performance.

APPLICATION DATA

9.1 Installation of indoor unit

Covers safety precautions and general installation guidelines for indoor units.

9.2 Electric wiring work instruction

Provides detailed instructions and diagrams for electrical wiring connections.

OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER

10.1 Remote control (Option parts)

Explains the functions and components of wired and wireless remote controls.

10.2 Operation control function by the wired remote control

Details how to use wired remote controls for various operational settings and functions.

10.3 Operation control function by the indoor control

Describes automatic controls and functional operations managed by the indoor unit itself.

SYSTEM TROUBLESHOOTING PROCEDURE

11.1 Basics of troubleshooting

Outlines the fundamental steps and approach for diagnosing system issues.

11.2 Contents of troubleshooting

Lists common error codes, their names, classification, and corresponding pages.

11.3 Instruction of how to replace PCB

Provides step-by-step guidance for replacing printed circuit boards (PCBs) in indoor units.

11.4 Indoor PCB setting

Details the default and adjustable settings for DIP switches on the indoor unit PCB.

OPTION PARTS

12.1 Wireless kit (RCN-KIT4-E2)

Covers the specification, installation, and operation of the wireless remote control kit.

12.2 Motion sensor kit (LB-KIT2)

Explains the specification, installation, and wiring of the motion sensor kit.

12.3 Simple wired remote control (RCH-E3)

Details the functions, installation, and wiring of the RCH-E3 simple wired remote control.

12.4 Filter kit (FDUT series)

Provides installation instructions for the outlet duct plate filter kit for FDUT series.

12.5 Filter kit (FDUH series)

Covers installation points and operating instructions for the FDUH series filter kit.