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English
CONTENTS
1. SAFETY CONSIDERATIONS .......................................1
2. BEFORE INSTALLATION ............................................3
3. SELECTION OF INSTALLATION LOCATION ..............4
4. PREPARATION BEFORE INSTALLATION ..................5
5. INSTALLATION OF INDOOR UNIT .............................7
6. REFRIGERANT PIPING WORK ..................................8
7. DRAIN PIPING WORK ..............................................10
8. DUCT WORK .............................................................13
9. ELECTRIC WIRING WORK .......................................13
10. FIELD SETTING ........................................................17
11. TEST OPERATION ....................................................19
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 unit.
Improper installation can result in water or refrigerant leakage,
electric 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 oxygen.
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, telephone
wires, or lightning rods as incomplete grounding 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 materials 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 injury or death by suffocation.
WARNING
•
Only qualified personnel must carry out the installation
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 measures
to keep the refrigerant concentration from exceeding
allowable safety limits. Excessive refrigerant leaks, in the
event of an accident in a closed ambient space, can lead to
oxygen deficiency.
•
Use only specified accessories and parts for installation
work. Failure to use specified parts may result in water
leakage, electric shock, fire or the unit falling.
•
Install the air conditioner or heat pump 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 injury.
•
Take into account strong winds, typhoons, or earthquakes
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 shock
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.
•
When wiring, position the wires so that the control box
cover can be securely fastened. Improper positioning of the
control box cover may result in electric shock, fire or the
terminals overheating.
•
Before touching electrical parts, turn off the unit.
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