Fujitsu Airstage AOU36RLAVS Installation Manual Download Page 2

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1. SAFETY

PRECAUTIONS

This installation manual describes how to install the outdoor unit only. To install the indoor
unit, refer to the installation manual included with the indoor unit.

IMPORTANT!
Please Read Before Starting

This air conditioning system meets strict safety and operating standards. As the installer
or service person, it is an important part of your job to install or service the system so it
operates safely and efficiently.

For safe installation and trouble-free operation, you must:

• Carefully read this instruction booklet before beginning.
• Follow each installation or repair step exactly as shown.
• Observe all local, state, and national electrical codes.
• Pay close attention to all danger, warning, and caution notices given in this manual.

WARNING:

This symbol refers to a hazard or unsafe practice which can result in
severe personal injury or death.

CAUTION:

This symbol refers to a hazard or unsafe practice which can result in
personal injury and the potential for product or property damage.

• Hazard alerting symbols

Electrical

Safety / alert

If Necessary, Get Help

These instructions are all you need for most installation sites and maintenance conditions.
If you require help for a special problem, contact our sales/service outlet or your certified
dealer for additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for improper installation or maintenance
service, including failure to follow the instructions in this document.

SPECIAL PRECAUTIONS

When Wiring

ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH.
ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO
WIRE THIS SYSTEM.

• Do not supply power to the unit until all wiring and tubing are completed or reconnected

and checked.

• Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring

diagram and these instructions when wiring. Improper connections and inadequate
earthing (grounding) can cause accidental injury or death.

• Earth (ground) the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause overheating at connection points and

a possible fire hazard.

When Transporting

Be careful when picking up and moving the indoor and outdoor units. Get a partner to
help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin
aluminum fins on the air conditioner can cut your fingers.

When Installing...

...In a Ceiling or Wall

Make sure the ceiling/wall is strong enough to hold the unit’s weight. It may be necessary
to construct a strong wood or metal frame to provide added support.

...In a Room

Properly insulate any tubing run inside a room to prevent “sweating” that can cause drip-
ping and water damage to walls and floors.

...In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the
outdoor unit. This prevents water damage and abnormal vibration.

...In an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable
air baffle.

...In a Snowy Area (for Heat Pump-type Systems)

Install the outdoor unit on a raised support that is higher than drifting snow. Provide snow
vents.

INSTALLATION MANUAL

VRF system outdoor unit
PART No. 9380545187-02

Contents

1. SAFETY

PRECAUTIONS

………………………………………………………………… 1

2. ABOUT

THIS

PRODUCT

………………………………………………………………… 2

2.1. Precautions for using R410A refrigerant ………………………………………… 2
2.2. Special tools for R410A …………………………………………………………… 3
2.3. Accessories

………………………………………………………………………… 3

2.4. Optional

parts

……………………………………………………………………… 3

2.5. About unit of the length …………………………………………………………… 3

3. INSTALLATION

WORK

…………………………………………………………………… 3

3.1. Selecting an installation location ………………………………………………… 3
3.2. Drain

processing

…………………………………………………………………… 3

3.3. Installation

dimensions

…………………………………………………………… 4

3.4. Transporting the unit ……………………………………………………………… 4
3.5. Installing the unit …………………………………………………………………… 4

4. SYSTEM

CONFIGURATION

……………………………………………………………… 5

4.1. System

configuration

……………………………………………………………… 5

4.2. Pipe

selection

……………………………………………………………………… 5

4.3. Protection of pipes ………………………………………………………………… 5

5. PIPE

INSTALLATION

……………………………………………………………………… 5

5.1. Brazing

……………………………………………………………………………… 5

5.2. Indoor unit pipe connections ……………………………………………………… 6
5.3. Opening the knockout hole ……………………………………………………… 6
5.4. Pipe

connection

…………………………………………………………………… 6

6. ELECTRICAL

WIRING

…………………………………………………………………… 7

6.1. The precautions of electrical wiring ……………………………………………… 7
6.2. Knockout

hole

……………………………………………………………………… 8

6.3. Selecting power supply cable and breaker ……………………………………… 8
6.4. Transmission

line

…………………………………………………………………… 8

6.5. Wiring

method

……………………………………………………………………… 9

6.6. External input and external output …………………………………………… 10

7. FIELD

SETTING

………………………………………………………………………… 11

7.1.  Field setting switches …………………………………………………………… 11
7.2.  DIP switch setting  ……………………………………………………………… 11
7.3.  Rotary switch setting  …………………………………………………………… 11
7.4.  Push button setting ……………………………………………………………… 11
7.5.  Address setting for signal amplifiers  ………………………………………… 13
7.6.  Indoor unit address setting  …………………………………………………… 13
7.7.  Resistance measurement of transmission cable

(Measure with breaker OFF) …………………………………………………… 14

8. PIPE INSTALLATION II ………………………………………………………………… 14

8.1. Sealing

test

……………………………………………………………………… 14

8.2. Vacuum

process

………………………………………………………………… 14

8.3. Additional

charging

……………………………………………………………… 15

8.4. Installing