Fujitsu AR 18 - User Manual

PART No. 9374342419-02
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INSTALLATION MANUAL
AIR CONDITIONER
INDOOR UNIT
Slim Duct Type
For authorized service personnel only.
Contents
1. SAFETY PRECAUTIONS ............................................. 2
1.1. IMPORTANT! Please Read Before Starting ........... 2
1.2. Special precautions ................................................ 2
2. ABOUT THIS PRODUCT .............................................. 3
2.1. Precautions for using R410A refrigerant ................ 3
2.2. Special tools for R410A .......................................... 3
2.3. For authorized service personnel only. .................. 3
2.4. Accessories ............................................................ 4
2.5. Optional parts ......................................................... 5
3. GENERAL SPECIFICATIONS ...................................... 5
3.1. Type of copper pipe and insulation material ........... 5
3.2. Additional materials required for installation........... 5
3.3. Operating range ..................................................... 5
4. ELECTRICAL REQUIREMENT ..................................... 6
5. SELECTING THE MOUNTING POSITION ................... 6
6. INSTALLATION WORK ................................................. 7
6.1A. Installation dimensions
(Ceiling concealed type) ...................................... 7
6.1B. Installation dimensions (Wall mounted type/
Floor standing concealed type) ........................... 7
6.2A. Install the unit (Ceiling concealed type) ............... 7
6.2B. Install the unit (Wall mounted type/
Floor standing concealed type) ......................... 10
7.
PIPE INSTALLATION .................................................. 12
7.1. Selecting the pipe material ................................... 12
7.2. Pipe requirement .................................................. 12
7.3. Flare connection (Pipe connection)...................... 12
7.4. Installing heat insulation ....................................... 13
8. INSTALLING DRAIN PIPES ........................................ 14
8.1A. When drain pump is used .................................. 14
8.1B. When drain pump is not used
(Natural drainage) .............................................. 14
8.2. Install the drain pipe ............................................. 15
9. ELECTRICAL WIRING ................................................ 16
9.1. INDOOR UNIT SIDE ............................................ 17
10. REMOTE CONTROLLER SETTING ........................... 18
10.1. Installing the remote controller ........................... 18
10.2. Setting the dip switches ..................................... 19
10.3. Function setting .................................................. 19
10.4. Jumper wire setting ............................................ 22
10.5. Test run .............................................................. 22
11. SPECIAL INSTALLATION METHODS ......................... 23
12. OPTIONAL PARTS ..................................................... 23
12.1. External input and external output ..................... 23
12.2. Remote sensor (Optional parts) ......................... 24
12.3. IR Receiver Unit (Optional parts) ....................... 24
13. ERROR CODES ......................................................... 25
14. CUSTOMER GUIDANCE ............................................ 26
9374342419_02_IM.indb 19374342419_02_IM.indb 1 2015/6/25 10:27:002015/6/25 10:27:00

Summary

SAFETY PRECAUTIONS

IMPORTANT! Please Read Before Starting

Essential safety and operating standards for the air conditioning system installation and service.

Special precautions

Specific safety measures related to electrical shock, wiring, and handling of the unit during installation.

ABOUT THIS PRODUCT

Precautions for using R410 A refrigerant

Key considerations and differences when working with R410A refrigerant, including pressure and special tools.

ELECTRICAL REQUIREMENT

SELECTING THE MOUNTING POSITION

INSTALLATION WORK

Install the unit (Ceiling concealed type)

Guidance on installing the indoor unit for ceiling concealed applications.

PIPE INSTALLATION

Selecting the pipe material

Guidance on choosing appropriate seamless copper pipes for R410A refrigerant systems.

Pipe requirement

Flare connection (Pipe connection)

Instructions for performing flare connections on refrigerant pipes using specific tools and techniques.

Installing heat insulation

INSTALLING DRAIN PIPES

When drain pump is used

When drain pump is not used (Natural drainage)

Install the drain pipe

ELECTRICAL WIRING

INDOOR UNIT SIDE

Instructions for connecting the indoor unit's electrical wiring, including power supply and remote controller cables.

REMOTE CONTROLLER SETTING

Setting the dip switches

Function setting

Steps to adjust indoor unit functions using the remote controller for optimal performance.

Test run

Procedure for performing a test run to verify proper operation after installation.

ERROR CODES

Fujitsu AR 18 Specifications

General

Brand	Fujitsu
Model	AR 18
Category	Air Conditioner
Language	English