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CONTENTS
1. FIRST OF ALL .......................................................................... 1
1-1 Safety precautions ............................................................ 1
1-2 Special notice of product .................................................. 2
1-3 Disposal requirements ..................................................... 2
2. INTRODUCTION ....................................................................... 2
2-1 Combination ..................................................................... 2
2-2 Spec list ............................................................................ 3
2-3 Electrical specifications .................................................... 3
2-4 Accessories ...................................................................... 3
3. BEFORE INSTALLATION .......................................................... 3
4. SELECTING INSTALLATION LOCATION ................................. 4
5. PRECAUTIONS DURING INSTALLATION ............................... 7
6. ELECTRICAL WIRING .............................................................. 8
6-1 Example of whole system wiring connection .................... 8
transmission wiring ........................................................... 8
6-3 Precautions to power wiring connection ........................... 9
6-4 Precautions to wiring connection between units .............. 9
7. REFRIGERANT PIPING CONNECTION ................................ 10
7-1 Installation tools ............................................................. 10
7-2 Selecting piping material ................................................ 10
7-3 Piping protection ............................................................ 10
7-4 Pipe connection .............................................................. 10
7-5 Precautions to refrigerant piping connection .................. 11
7-6 Piping insulation ............................................................. 12
7-7 System piping (length) limitations .................................. 12
7-8 Air tight test and vacuum drying ..................................... 13
8. CHARGING REFRIGERANT .................................................. 14
8-1 Before charging refrigerant ............................................. 14
8-2 About refrigerant tank ..................................................... 14
8-3 Charging refrigerant ....................................................... 14
9. AFTER INSTALLATION COMPLETED ................................... 15
10. ABOUT TEST RUN ................................................................. 15
10-1 Powering on - test run ................................................... 15
10-2 For normal operation ...................................................... 16
1.
FIRST OF ALL
• Before installing the unit, read this manual thoroughly, and
following the instructions contained in it. After installation, do a
test run to make sure the unit runs properly, and then explain
how to operate and take care of the unit to the customer, using
the operation manual.
• Lastly, make sure the customer keeps this manual, along with
the operation manual, in a safe place.
• This manual does not describe how to install the indoor unit and
the remote controller. Refer to the installation manual included
with the indoor unit for that.
1-1 Safety precautions
Please read the these "Safety precautions" carefully before
installing air conditioning unit and be sure to install it correctly.
After completing the installation, make sure that the unit operates
properly during the start-up operation.
Please instruct the customer on how to operate the unit and keep it
maintained.
Also, inform customers that they should store this installation
manual along with the operation manual for future reference.
After completing installation, conduct a trial operation to check for
faults and explain to the customer how to operate the air conditioner
and take care of it with the aid of the operation manual.
Ask the customer to store the installation manual along with the
operation manual for future reference.
The precautions described herein are classified as WARNING and
CAUTION, following which is the important safety information, it is
strongly recommended to observe.
Meaning of WARNING and CAUTION notices
SPLIT System Air Conditioner
WARNING ........ Failure to follow these instructions properly
CAUTION ......... Failure to observe these instructions properly
WARNING
• Ask your dealer or qualified personnel to carry out installation
work.
Do not attempt to install the air conditioner yourself. Improper
installation may result in water leakage, electric shocks or fire.
• Install the air conditioner in accordance with the instructions in
this installation manual.
Improper installation may result in water leakage, electric shocks
or fire.
• Consult your local dealer regarding what to do in case of
refrigerant leakage, when the air conditioner is to be installed in
a small room, it is necessary to take proper measures so that
the amount of any leaked refrigerant does not exceed the
concentration limit in the event of leakage. Otherwise, this may
lead to an accident due to oxygen depletion.
• Be sure to use only the specified accessories and parts for
installation work.
Failure to use the specified parts may result in the unit falling,
water leakage, electric shocks or fire.
• Install the air conditioner on a foundation strong enough to
withstand the weight of the unit.
A foundation of insufficient strength may result in the equipment
falling and causing injury.
• Carry out the specified installation work after taking into account
strong winds, typhoons or earthquakes.
Failure to do so during installation work may result in the unit
falling and causing accidents.
• Make sure that a separate power supply circuit is provided for
this unit and that all electrical work is carried out by qualified
personnel according to local laws and regulations and this
installation manual.
An insufficient power supply capacity or improper electrical
construction may lead to electric shocks or fire.
• Make sure that all wiring is secured, the specified wires are used,
and that there is no strain on the terminal connections or wires.
Improper connections or securing of wires may result in abnormal
heat build-up or fire.
• When wiring the power supply and connecting the wiring
between the indoor and outdoor units, position the wires so that
the EL.COMPO.BOX lid can be securely fastened.
Improper positioning of the EL.COMPO.BOX lid may result in
electric shocks, fire or the terminals overheating.
• If refrigerant gas leaks during installation, ventilate the area
immediately.
Toxic gas may be produced if the refrigerant comes into contact
with fire.
• After completing installation, check for refrigerant gas leakage.
Toxic gas may be produced if the refrigerant gas leaks into the
room and comes into contact with a source of fire, such as a fan
heater, stove or cooker.
• Do not directly touch refrigerant that has leaked from refrigerant
pipes or other areas, as there is a danger of frostbite.
• Be sure to switch off the unit before touching any electrical parts.
• Do not allow children to climb on the outdoor unit and avoid
placing objects on the unit.
Injury may result if the unit becomes loose and falls.
• Be sure to earth the air conditioner.
Do not earth the unit to a utility pipe, lightning conductor
or telephone earth lead.
Imperfect earthing may result in electric shocks or fire.
A high surge current from lightning or other sources
may cause damage to the air conditioner.
• Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in electric
shocks or fire.
Installation manual
may result in personal injury or loss of life.
may result in property damage or personal
injury, which may be serious depending on
the circumstances.
1
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