Daikin VRV III REMQ120PBTJ, Engineering Data

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Installation EDUS391004-N
92 Installation of Outdoor Units
1. Safety Considerations
1-1 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 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 refrigerant leakage,
electrical 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 base-
ments, 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 into 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 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 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 defi-
ciency.
•
Use only specified accessories and parts for installation
work. Failure to use specified parts may result in water
leakage, electric shocks, 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 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
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.
•
When wiring, position the wires so that the terminal box lid
can be securely fastened. Improper positioning of the
terminal box lid may result in electric shocks, fire, or the
terminals overheating.
•
Before touching electrical parts, turn off the unit.
•
Securely fasten the outside unit terminal cover (panel). If
the terminal cover/panel is not installed properly, dust or
water may enter the outside unit causing fire or electric
shock.
•
When installing or relocating the system, keep the
refrigerant circuit free from substances other than the
specified refrigerant (R-410A) 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
specified by Daikin are used, fire or explosion may occur.
CAUTION
•
Do not touch the switch with wet fingers. Touching a switch
with wet fingers can cause electric shock.
•
Do not allow children to play on or around the unit to
prevent injury.
•
The heat exchanger fins are sharp enough to cut. To avoid
injury wear gloves or cover the fins while working around
them.
•
Do not touch the refrigerant pipes during and immediately
after operation as the refrigerant pipes may be hot or cold,
depending on the condition of the refrigerant flowing
through the refrigerant piping, compressor, and other
refrigerant cycle parts. Your hands may suffer burns or
frostbite if you touch the refrigerant pipes. To avoid injury,
give the pipes time to return to normal temperature or, if
you must touch them, be sure to wear proper gloves.
3P215731-11R