2
English
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Make sure that all wiring is secured, the specified wires and used, and no external forces act on the terminal
connections or wires.
Improper connections or installation may result in fire.
•
When wiring the power supply and connecting the remote controller wiring and transmission wiring, position
the wires so that the control box lid can be securely fastened.
Improper positioning of the control box lid may result in electric shocks, fire or the terminals overheating.
•
If the refrigerant gas leaks during installation, ventilate the area immediately.
Toxic gas may be produced if the refrigerant gas comes into contact with fire.
•
After completing the installation work, check that the refrigerant gas does not leak.
Toxic gas may be produced if the refrigerant gas leaks into the room and comes into contact with a source
of fire, such as a fan heater, stove or cooker.
•
Before touching electrical parts, turn off the unit.
•
Do not directly touch the refrigerant leaked from refrigerant piping connections.
Frostbite may be caused.
CAUTION
•
Ground the air conditioner.
Do not connect the ground wire to gas or water pipes, lightning rod or a telephone ground wire.
Incomplete grounding may result in electric shocks.
•
Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in electric shocks.
•
While following the instructions in this installation manual, install drain piping in order to ensure proper
drainage and insulate piping in order to prevent condensation.
Improper drain piping may result in water leakage and property damage.
•
Install the indoor and outdoor units, power supply wiring and connecting wiring at least 1 meter away from
televisions or radios in order to prevent image interference or noise.
(Depending on the radio waves, a distance of 1 meter may not be sufficient enough to eliminate the noise.)
•
Remote controller (wireless kit) transmitting distance can result shorter than expected in rooms with elec-
tronic fluorescent lamps. (inverter or rapid start types)
Install the indoor unit as far away from fluorescent lamps as possible.
•
Do not install the air conditioner in the following locations:
(a) where a mineral oil mist or an oil spray or vapor is produced, for example in a kitchen
Plastic parts may deteriorate and fall off or result in water leakage.
(b) where corrosive gas, such as sulfurous acid gas, is produced
Corroding copper pipes or soldered parts may result in refrigerant leakage.
(c) near machinery emitting electromagnetic waves
Electromagnetic waves may disturb the operation of the control system and result in a malfunction of
the unit.
(d) where flammable gas may leak, where there are carbon fiber or ignitable dust suspensions in the air,
or where volatile flammables such as thinner or gasoline are handled.
Operating the unit in such conditions may result in fire.
2. BEFORE INSTALLATION
• When moving the unit while removing it from the carton box, be sure to lift it by holding on to the
two lifting lugs without exerting any pressure on other parts, especially, the refrigerant piping.
•
Be sure to check the type of R410A refrigerant to be used before installing the unit. (Using an incorrect
refrigerant will prevent normal operation of the unit.)
•
BEV unit is an electronic expansion valve unit for allowing the indoor unit to be connected to the system for
the VRV system.
•
BEV unit may only be connected to the models shown in the table below. Do not attempt connection with
other models.
Indoor unit
Ceiling Suspended Cassette Type
3P084604-2A_Eng.fm Page 2 Wednesday, March 3, 2004 10:01 AM
