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CONTENTS
1. SAFETY CONSIDERATIONS .......................................... 1
2. BEFORE INSTALLATION ................................................ 3
3. CHOOSING AN INSTALLATION SITE ............................ 4
4. PREPARATION BEFORE INSTALLATION ...................... 5
5. INDOOR UNIT INSTALLATION ....................................... 6
6. REFRIGERANT PIPING WORK ...................................... 7
7. DRAIN PIPING WORK .................................................... 9
8. DUCT WORK ................................................................. 11
9. ELECTRIC WIRING WORK ........................................... 11
10. FIELD SETTING ............................................................ 14
11. TRIAL OPERATION AND TESTING .............................. 15
1. SAFETY CONSIDERATIONS
Read these SAFETY CONSIDERATIONS for Installation
carefully before installing an air conditioner or heat pump. After
completing the installation, make sure that the unit operates
properly during the startup operation.
Instruct the user on how to operate and maintain the unit.
Inform users 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 refrigerant leakage,
electric shock, fire, or explosion.
Meanings of DANGER, WARNING, CAUTION, and NOTE
Symbols:
DANGER
...........
Indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
WARNING
..........
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
CAUTION
...........
Indicates a potentially hazardous
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 property-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
ifitcomesintocontactwithre.Exposuretothisgascould
cause severe injury or death.
• After completing the installation work, check that the
refrigerant gas does not leak throughout the system.
• Donotinstallunitinanareawhereammablematerials
are present due to risk of explosions that can cause
serious injury or death.
• Safely dispose 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
• Onlyqualiedpersonnelmustcarryouttheinstallation
work. Installation must be done in accordance with this
installation manual. Improper installation may result in
waterleakage,electricshock,orre.
• 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
tooxygendeciency.
• Useonlyspeciedaccessoriesandpartsforinstallation
work.Failuretousespeciedpartsmayresultinwater
leakage,electricshock,re,ortheunitfalling.
• Install the air conditioner or heat pump on a foundation
strong enough that it can withstand the weight of the unit.
Afoundationofinsufcientstrengthmayresultintheunit
falling and causing injuries.
• 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
qualiedpersonnelaccordingtolocal,state,andnational
regulations.Aninsufcientpowersupplycapacityor
improper electrical construction may lead to electric shock
orre.
• Makesurethatallwiringissecured,thatspeciedwires
are used, and that no external forces act on the terminal
connections or wires. Improper connections or installation
mayresultinre.
• When wiring, position the wires so that the electrical wiring
box cover can be securely fastened. Improper positioning
of the electrical wiring box cover may result in electric
shock,re,ortheterminalsoverheating.
• Before touching electrical parts, turn off the unit.
• The circuit must be protected with safety devices in
accordance with local and national codes, i.e. a circuit
breaker.
•
Securely fasten the outdoor unit terminal cover (panel). If the
terminal cover/panel is not installed properly, dust or water
mayentertheoutdoorunitcausingreorelectricshock.
•
When installing or relocating the system, keep the refrigerant
circuitfreefromsubstancesotherthanthespecied
refrigerant (R410A) such as air. Any presence of air or other
foreign substance in the refrigerant circuit can cause an
abnormal pressure rise or rupture, resulting in injury.
• Do not change the setting of the protection devices. If the
pressure switch, thermal switch, or other protection device
is shorted and operated forcibly, or parts other than those
speciedbyDaikinareused,reorexplosionmayoccur.
1 English
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