SPLIT
SYSTEM Air
Conditioners
Installation manual
1
English
CONTENTS
1. SAFETY CONSIDERATIONS ........................................ 1
2. BEFORE INSTALLATION .............................................. 3
3. SELECTING INSTALLATION SITE................................ 4
4. INDOOR UNIT INSTALLATION ..................................... 5
5. REFRIGERANT PIPING WORK .................................... 8
6. DRAIN PIPING WORK .................................................. 9
7. ELECTRIC WIRING WORK ......................................... 10
8. WIRING EXAMPLE AND HOW TO SET
THE REMOTE CONTROLLER .................................... 11
9. FIELD SETTING .......................................................... 14
10. TEST OPERATION ...................................................... 15
1. SAFETY CONSIDERATIONS
Read these
SAFETY CONSIDERATIONS for Installation
carefully before installing air conditioning equipment. After
completing the installation, make sure that the unit operates
properly during the startup operation.
Instruct the customer on how to operate and maintain the
unit. Inform customers that they should store this Installation
Manual with the Operation Manual for future reference.
Always use a licensed installer or contractor to install this
product. Improper installation can result in water or refriger-
ant leakage, electrical shock, fire, or explosion.
Meanings of
DANGER
,
WARNING
,
CAUTION
, and
NOTE
Symbols:
DANGER
................ Indicates an imminently haz-
ardous situation which, if not
avoided, will result in death or
serious injury.
WARNING
.............. Indicates a potentially haz-
ardous situation which, if not
avoided, could result in death
or serious injury.
CAUTION
............... Indicates a potentially haz-
ardous situation which, if not
avoided, may result in minor
or moderate injury. It may
also be used to alert against
unsafe practices.
NOTE
....................... Indicates situations that may
result in equipment or prop-
erty damage accidents only.
DANGER
•
Refrigerant gas is heavier than air and replaces oxy-
gen. A massive leak can lead to oxygen depletion,
especially in basements, and an asphyxiation hazard
could occur leading to serious injury or death.
•
Do not ground units to water pipes, gas pipes, tele-
phone wires, or lightning rods as incomplete ground-
ing can cause a severe shock hazard resulting in
severe injury or death. Additionally, grounding to gas
pipes could cause a gas leak and potential explosion
causing severe injury or death.
•
If refrigerant gas leaks during installation, ventilate
the area immediately. Refrigerant gas may produce
toxic gas if it comes in contact with fire. Exposure to
this gas could cause severe injury or death.
•
After completing the installation work, check that the
refrigerant gas does not leak throughout the system.
•
Do not install unit in an area where flammable materi
-
als are present due to risk of explosions that can
cause serious injury or death.
•
Safely dispose of all packing and transportation
materials in accordance with federal/state/local laws
or ordinances. Packing materials such as nails and
other metal or wood parts, including plastic packing
materials used for transportation, may cause injuries
or death by suffocation.
WARNING
•
Only qualified personnel must carry out the installa
-
tion work. Installation must be done in accordance
with this installation manual. Improper installation
may result in water leakage, electric shock, or fire.
•
When installing the unit in a small room, take mea-
sures to keep the refrigerant concentration from
exceeding allowable safety limits. Excessive refriger-
ant leaks, in the event of an accident in a closed
ambient space, can lead to oxygen deficiency.
•
Use only specified accessories and parts for installa
-
tion work. Failure to use specified parts may result in
water leakage, electric shocks, fire, or the unit falling.
•
Install the air conditioner on a foundation strong
enough that it can withstand the weight of the unit. A
foundation of insufficient strength may result in the
unit falling and causing injuries.
•
Take into account strong winds, typhoons, or earth-
quakes when installing. Improper installation 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,
state and national regulations. An insufficient power
supply capacity or improper electrical construction
may lead to electric shocks or fire.
•
Make sure that all wiring is secured, that specified
wires are used, and that no external forces act on the
terminal connections or wires. Improper connections
or installation may result in fire.
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