Fujitsu ASU15RLQ/AOU15RLQ User Manual

SPLIT TYPE ROOM AIR CONDITIONER
INSTALLATION MANUAL
(P/N 9314989063-01) ENGLISH
(MODEL: ASU15RLQ/AOU15RLQ; ASU18RLQ/AOU18RLQ)
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.
• Hazel alerting symbols
Electrical
Safety / alert
If Necessary, Get Help
These instructions are all you need for most installation sites and mainte-
nance 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 grounding can cause accidental injury
or death.
• Ground the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause overheating at con-
nection 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 dripping 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 abnor-
mal 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 platform that is higher than drifting
snow. Provide snow vents.
When Connecting Refrigerant Tubing
• Keep all tubing runs as short as possible.
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of the flare and
union tubes before connecting them, then tighten the nut with a torque
wrench for a leak-free connection.
• Check carefully for leaks before starting the test run.
NOTE:
Depending on the system type, liquid and gas lines may be either nar-
row or wide. Therefore, to avoid confusion the refrigerant tubing for your
particular model is specified as either “small” or “large” rather than as
“liquid” or “gas”.
When Servicing
• Turn the power OFF at the main circuit breaker panel before opening
the unit to check or repair electrical parts and wiring.
• Keep your fingers and clothing away from any moving parts.
• Clean up the site after you finish, remembering to check that no metal
scraps or bits of wiring have been left inside the unit being serviced.
• After installation, explain correct operation to the customer, using the
operating manual.

Fujitsu ASU15RLQ/AOU15RLQ Specifications

General

Brand	Fujitsu
Model	ASU15RLQ/AOU15RLQ
Category	Air Conditioner
Language	English

Summary

Special Precautions

When Wiring

Electrical safety and wiring practices.

When Transporting

Safe handling and movement of units.

When Installing

Placement considerations for various environments.

When Connecting Refrigerant Tubing

Procedures for connecting refrigerant lines.

When Servicing

Safety and cleanup during maintenance.

Special Tools and Materials for R410A

R410A Specific Tools

Lists gauge manifold, charge hose, vacuum pump, gas leakage detector.

Copper Pipe Specifications for R410A

Details on pipe types and thicknesses for R410A.

General Installation Requirements

Installation Guidelines and Accessories

Covers general installation, required materials, and standard accessories.

Refrigerant Charge and Electrical Specs

Details on additional refrigerant and electrical requirements.

Selecting the Mounting Position

Indoor Unit Mounting Position

Criteria for installing the indoor unit.

Outdoor Unit Mounting Position

Criteria for installing the outdoor unit.

Installation Diagram and Clearances

Visual guide for unit placement and clearances.

Indoor Unit Installation

Cutting the Wall Hole for Piping

Procedure for creating the wall opening for pipes.

Installing the Wall Hook Bracket

Steps for securely mounting the bracket.

Forming the Drain Hose and Pipe

Routing and connecting the drain hose.

Indoor Unit Piping and Connection

Piping and Drain Hose Finishing

Securing and insulating pipes and drain hose.

Connecting the Piping

Steps for connecting indoor and outdoor unit piping.

Flaring and Bending Pipes

Techniques for preparing refrigerant pipes.

Outdoor Unit Installation

Unit Placement and Stability

Requirements for setting the unit on a stable foundation.

Connector Cover Installation

Procedure for installing the unit's connector cover.

Air Purge Procedure

Vacuum Pump Purging

Step-by-step guide for purging air using a vacuum pump.

Electrical Wiring - Outdoor Unit

Control Box Cover Removal and Reinstallation

Steps to access and close the outdoor unit's control box.

Connecting Wiring to Terminals

How to connect inter-unit harness and power supply.

Wiring Safety Precautions

Warnings about proper wiring and connections.

Electrical Wiring - Indoor Unit

Inter-Unit Wire Harness Installation

Steps for installing the wire harness to the indoor unit.

Connecting Wires to Terminals

Guide for connecting solid and strand wires.

Wiring Terminal Connection Precautions

Safety warnings for terminal block connections.

Finishing Touches

Insulating and Securing Pipes

Insulating between pipes and securing them.

Sealing Wall Penetrations

Filling gaps to prevent water and wind entry.

Front Panel and Air Cleaning Unit

Air Cleaning Unit Removal and Installation

Procedures for the air cleaning unit.

Intake Grille Removal and Installation

Steps for removing and installing the intake grille.

Front Panel Removal and Installation

Procedures for removing and installing the front panel.

Wired Remote Control Unit Installation

Pre-installation Precautions

Safety warnings and checks before installation.

Front Panel and Control Unit Removal

Steps to remove the indoor unit's front panel and control unit.

Wired Remote Control Unit Connection

Connecting the Control Unit Wire

How to connect the remote control wire to the circuit board.

Reinstalling Front Panel and Control Unit

Reverse steps for reassembling the unit.

Test Running and Power Connection

Test Run Procedure

Steps to perform a test operation.

Power Supply Requirements

Voltage, circuit, and receptacle specifications.

Customer Guidance

Information to convey to the end-user.

Pump Down Operation

Refrigerant Recovery Procedure

Steps to recover refrigerant before relocation or disposal.

Inter-Unit Wire Harness Adjustment

Adjusting Harness Length for Terminal Connection

Method for preparing wire harness length before connecting.

Remote Control Unit Holder Installation

Holder Mounting Precautions

Site selection criteria for the remote control holder.

Installing the Holder

Method of physically attaching the holder to a surface.