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VRV SYSTEM Inverter Air Conditioners
Installation manual
CONTENTS
1. SAFETY CONSIDERATIONS ........................................................................................ 1
2. BEFORE INSTALLATION .............................................................................................. 3
3. SELECTING INSTALLATION SITE ............................................................................... 5
4. INDOOR UNIT INSTALLATION ..................................................................................... 6
5. REFRIGERANT PIPING WORK .................................................................................. 10
6. DRAIN PIPING WORK................................................................................................. 12
7. ELECTRIC WIRING WORK ......................................................................................... 13
8. WIRING EXAMPLE AND HOW TO SET THE REMOTE CONTROLLER ................... 14
9. FIELD SETTINGS ........................................................................................................ 19
10. TEST OPERATION...................................................................................................... 20
1. SAFETY CONSIDERATIONS
Please read these “SAFETY CONSIDERATIONS” carefully before installing air conditioning equipment 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.
This air conditioner comes under the term “appliances not accessible to the general public”.
Meaning of warning, caution and note symbols.
WARNING
.........Indication a potentially hazardous situation which, if not avoided, could result in death
or serious injury.
CAUTION
..........Indication a potentially hazardous situation which, if not avoided, may result in minor
or moderate injury. It may also be sued to alert against unsafe practices.
NOTE
................Indication situation that may result in equipment or property-damage-only accidents.
WARNING
• Ask your dealer or an authorized personnel to carry out installation work. Do not try to install the
unit by yourself.
Improper installation may result in water leakage, electric shocks or fire.
• Perform installation work in accordance with this installation manual.
Improper installation may result in water leakage, electric shocks or fire.
• When installing the unit in a small room, take measures against to keep refrigerant concentration
from exceeding allowable safety limits in the event of refrigerant leakage.
Contact the place of purchase for more information. Excessive refrigerant in a closed ambient can lead to
oxygen deficiency.
• Be sure to use only the specified accessories and parts for installation work.
Failure to use the specified parts may result in water leakage, electric shocks, fire or the unit falling.
• 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 injuries.