Disposing Of The Unit; Names And Functions Of Various Parts; Operation - Mitsubishi Electric PRH-P8MYA Manuel D'utilisation

• Never wipe the remote controller with benzene, thinner, chemical rags,
etc. Doing so can result in discoloration and failure. To remove heavy
stains, soak a cloth in neutral detergent mixed with water, wring it out
thoroughly, wipe the stains off, and wipe again with a dry cloth.
• Never block or cover the unit's intakes or outlets. Tall items of furniture
underneath the indoor air inlet and outlet part, or bulky items such as
large boxes placed close to the unit will reduce the unit's efficiency.
• Do not direct the airflow at plants or caged pets.
• Ventilate the room frequently. If the unit is operated continuously in a
closed room for a long period of time, the air will become stale.
In case of failure
Warning:
• Never remodel the air conditioner. Consult your dealer for any repair serv-
ice. Improper repair work can result in water leakage, electric shock, fire,
etc.
• If the remote controller displays an error indication, the air conditioner
does not run, or there is any abnormality, stop operation and contact
your dealer. Leaving the unit as it is under such conditions can result in
fire or failure.
• If the power breaker is frequently activated, get in touch with your dealer.
Leaving it as it is can result in fire or failure.
• If the refrigeration gas blows out or leaks, stop the operation of the air
conditioner, thoroughly ventilate the room, and contact your dealer. Leav-
ing the unit as it is can result in accidents due to oxygen deficiency.

2. Names and functions of various parts

Unit
PRH-P-MYA series
[Rooftop type]
[Fig. 2.0.1] (P.2)
<A> In case of side flow <B> In case of top flow
A Return air
C Outdoor heat exchanger air inlet
D Outdoor heat exchanger air outlet

3. Operation

Cooling
• The air conditioner works to cool the room to the selected temperature.
• Even if the room temperature reaches the target temperature and the com-
pressor comes to a stop, the fan will keep running at full speed.
Heating
• The air conditioner works to heat the room to the selected temperature.
• When selecting the heating mode, a desired room temperature must be set to
avoid any cool air. The fan will gradually increase the airflow delivery up to a
selected rate.
• Even if the room temperature reaches the target temperature and the com-
pressor comes to a stop, the fan will keep running at full speed. The fan can be
stopped by setting the switch to OFF.
4
B Supply air
E Fresh air intake
When the air conditioner is not to be used for a long
time
• If the air conditioner is not to be used for a long time due to a seasonal
change, etc., run it for 4 - 5 hours with the air blowing until the inside is
completely dry. Failing to do so can result in the growth of unhygienic,
unhealthy mold in scattered areas throughout the room.
• When it is not to be used for an extended time, keep the [power supply]
turned OFF.
If the power supply is kept on, several watts or several tens of watts will
be wasted. Also, the accumulation of dust, etc., can result in fire.
• Keep the power switched ON for more than 12 hours before starting op-
eration. Do not turn the power supply OFF during seasons of heavy use.
Doing so can result in failure.

1.3. Disposing of the unit

Warning:
When you need to dispose of the unit, consult your dealer. If pipes are re-
moved incorrectly, refrigerant (fluorocarbon gas) may blow out and come
into contact with your skin, causing injury. Releasing refrigerant into the
atmosphere also damages the environment.
Remote Controller
• Check out your remote controller.
Different controllers are used for different systems.
[Fig. 2.0.2] (P.2)
A Remote controller
Automatic (cooling / heating)
The air conditioner automatically goes into the cooling or heating mode to keep the
room at the selected temperature.
Ventilation
• Ventilation will not be displayed when not available (settings cannot be speci-
fied).
• When ventilation is selected it will operate in all modes.
Note:
The airflow settings cannot be changed on the main unit.