5
Ceiling Concealed Unit
WARNING This mark indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
This mark indicates a potentially hazardous situation which, if not avoided,
could result in minor or moderate injury. It may also be used to alert against
unsafe practices.
NOTICE This mark indicates a situation which could result in equipment and/or
property damage
Safety Precautions
Warnings, Cautions and Notices: Warnings, cautions and notices appear at appropriate intervals throughout
this manual. Warnings are provided to alert installing contractors to potential hazards that could result in
serious injury or death. Cautions are designed to alert personnel to conditions that could result in minor to
moderate injury. Notices alert to the possibility of equipment and/or property damage.
Your personal safety and the proper operation of this machine depend upon the strict observance of these
precautions.
WARNING
1. Installation should be left to the dealer or another professional. Improper installation may cause
water leakage, electrical shock or re.
2. Install the air conditioner according to the instructions given in this manual. Incomplete installation
work may cause water leakage, electrical shock or re.
3. Be sure to use the supplied or specied installation parts. Use of other parts may cause the unit to
come loose, resulting in water leakage, electrical shock or re.
4. Install the air conditioner on a solid base that can support the weight of the unit. An inadequate
base or incomplete installation may cause injury or property damage in the event the unit falls o
of the base.
5. Electrical work should be carried out in accordance with the installation manual and local, state
and National Electric Code (NEC). Insucient capacity or incomplete electrical work may cause
electrical shock or re.
6. Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance.
7. For wiring, use a cable that is long enough to cover the entire distance without a splice. Do not
use an extension cord. Do not put other loads on the power supply, use a dedicated power circuit.
(Failure to do so may cause abnormal heat, electric shock or re.)
8. Use the specied types of wires for electrical connections between the indoor and outdoor units.
Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete
connections or clamping may cause terminal overheating or re.
9. After connecting the interconnecting and supply wiring, be sure to shape the cables so that they
do not put undue force on the electrical covers or panels. Install covers over the wires. Incomplete
cover installation may cause terminal overheating, electrical shock or re.
10. After all installation is complete, check to make sure that there is no refrigerant leakage.
11. If any refrigerant has leaked out during the installation work, ventilate the room. (The refrigerant
produces a toxic gas if exposed to ames.)
12. When installing or relocating the system, be sure to keep the refrigerant circuit free from
substances other than the specied refrigerant (R410-A), 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.)
