Disposing Of The Unit; How To Operate; On/Off; Return Air Temperature Adjustment - Mitsubishi Electric PEFY-AF1200CFM Manuel D'utilisation

Warning:
• Do not remove the front panel or the fan guard from the outdoor unit
when it is running. You could be injured if you touch rotating, hot or high-
voltage parts.
• Never insert fingers, sticks etc. into the intakes or outlets, otherwise in-
jury may result, since the fan inside the unit rotates at high speed. Exer-
cise particular care when children are present.
• If you detect odd smells, stop using the unit, turn off the power switch
and consult your dealer. Otherwise, a breakdown, electric shock or fire
may result.
• When you notice exceptionally abnormal noise or vibration, stop opera-
tion, turn off the power switch, and contact your dealer.
• Do not over-cool. The most suitable inside temperature is one that is
within 5 °C [41 °F] of the outside temperature.
• Do not leave handicapped people or infants sitting or standing in the path
of the airflow from the air-conditioner. This could cause health problems.
Caution:
• 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 or 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

2. How to operate

E
˚F ˚C
1
TEMP.
2
MENU
BACK MONITOR/SET
CLOCK
Before starting operation
• Operate after the "PLEASE WAIT" display has disappeared. The "PLEASE WAIT"
display briefly appears on the room temperature display (max. 3 minutes) when
the power is turned on and after a power failure. This does not indicate failure
of the air conditioner.
• Indoor unit operation mode is limited by the operation status of the connected
outdoor unit. If an outdoor unit and some of the connected indoor units are
already operating in the cooling mode, for example, only the cooling mode is
available for the rest of the units in the same group. If a different mode is re-
quested, the symbol that corresponds to the requested mode will blink, notify-
ing the user that the mode is currently unavailable. The same is true for the dry
and heating modes. This restriction, however, does not apply to the models
that support a simultaneous cooling/heating function.
• The outdoor units stop operating when all the connected indoor units stop
operating.
• During heating operation, even if the indoor unit is set to operation while the
outdoor unit is in defrost, operation starts after defrost of the outdoor unit has
ended.
4
P
TIME
SUN MON TUE WED THU FRI SAT
TIMER Hr ON
AFTER
AFTER OFF
ERROR CODE
FUNCTION
˚F ˚C
FILTER
WEEKLY
SIMPLE
ONLY 1Hr. AUTO OFF

ON/OFF

B
7
ON/OFF FILTER
DAY
CHECK TEST
OPERATION CLEAR
8
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.
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.
2.1. ON/OFF
Start an operation
1. Press the B ON/OFF button
P Operation lamp lights up and operation starts.
Stop an operation
1. Press the B ON/OFF button again
Operation lamp goes off and operation stops.
• Once the buttons have been set, pressing the ON/OFF button only can repeat
the same operation thereafter.
• During operation, the operation lamp above the ON/OFF button lights up.
Caution:
Even if the ON/OFF button is pressed immediately after the operation is
once stopped, operation does not restart for about 3 minutes. This function
protects the machine. It automatically starts operation after 3 minutes has
lapsed.

2.2. Return air temperature adjustment

To change return air temperature
Press the 1 [Set Temperature] Button and set the return air temperature of
your choice.
Pressing or once changes the setting by 1 °C/1 °F.
If pressing continue, the setting continues to change by 1 °C [2 °F].
• Indoor temperature can be set within the following range.
PEFY-AF1200CFM :10 °C [50 °F] - 21 °C [70 °F]
PEFY-AF1200CFMR :17 °C [63 °F] - 28 °C [83 °F]
* The range of return air temperature display is 8 °C [46 °F] - 39 °C [102 °F].
Outside this range, the display flashes either 8 °C [46 °F] - 39 °C [102 °F] to
indicate if the return air temperature is lower or higher than the displayed tem-
perature.

2.3. Ventilation

• The ventilation unit (OA processing unit or LOSSNAY) automatically operation
when the indoor unit that is interlocked with operates.
• If the 8 Ventilation button is pressed while the indoor unit is stopped, only the
ventilator operates.
• Press the 8 Ventilation button to change the fan speed.
• Depending on the models, the indoor unit fan operates while the unit is in the
ventilation mode.