Disposing Of The Unit; Names And Functions Of Various Parts; How To Operate; Fan Speed Adjustment - Mitsubishi Electric City Multi PEFY-WP.VMS1-E serie Bedienungshandbuch

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 injury
may result, since the fan inside the unit rotates at high speed. Exercise par-
ticular 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 operation,
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 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
service. Improper repair work can result in water leakage, electric shock,
fire, etc.

2. Names and functions of various parts

Attachment and detachment of filter
[Fig. A] (P.2)

3. How to operate

• Refer to either Installation Manual or Initial Setting Manual that comes with
the controller to be used.
Caution:
Never expose your body directly to cool air for a long time. Excessive expo-
sure to cool air is bad for your health, and should therefore be avoided.
Dry operation
The dry is a microcomputer-controlled dehumidifying operation which controls
excessive air-cooling according to the room temperature of your choice. (Not usable
for heating.)
1. Until reaching room temperature of your choice
The compressor and indoor fan function is linked motion according to the
change of the room temperature and automatically repeat ON/OFF.
2. When reaching room temperature of your choice
Both the compressor and indoor fan stop.
When stop continues for 10 minutes, the compressor and indoor fan are oper-
ated for 3 minutes to keep the humidity low.
Heating operation
1. When the air-conditioner is used together with burners, thoroughly venti-
late the area. Insufficient ventilation can result in accidents due to oxy-
gen deficiency.
2. Never place a burner at a place where it is exposed to the airflow from the
air-conditioner.
Doing so can result in imperfect combustion of the burner.
3. The microcomputer functions in the following cases:
4. Air does not blow out when heating starts.
- To prevent any cool air from escaping, the indoor fan is gradually switched
in sequence from faint airflow/weak airflow/set airflow according to the
temperature rise of the blown out air. Wait a moment until the airflow
comes out naturally.
5. The fan is not moving at the set speed.
- In some models, the system switches over to faint airflow when the tem-
perature of the room reaches the set temperature. In other cases, it stops
to prevent any cool air from escaping during the defrosting operation.
4
• 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.
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 com-
pletely 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 opera-
tion. 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:
If pipes are cut, water may leak and wet the surroundings in the room. When
you need to dispose of the unit, consult your dealer.
Caution:
• In removing the filter, precautions must be taken to protect your eyes from
dust. Also, if you have to climb up on a stool to do the job, be careful not to
fall.
• Turn off the power supply when the filter is changed.
6. Air flows out even if operation is stopped.
- Approximately 1 minute after the stop of operation, the indoor fan some-
times rotates to eliminate extra heat generated by the electric heater, etc.
The fan speed comes to low or high.

3.1. Fan speed adjustment

To change fan speed
Every time you press the 6 [Fan Speed] button once, it switches from the low-speed
to high-speed settings successively.
In the electronics dry operation, the indoor fan automatically turns to low-speed oper-
ation. Switching of fan speed is impossible. (Only the display on the remote controller
changes.)
* Every time the fan speed adjustment button is pressed once, the fan speed is
changed.
Fan speed: 3 stages
* This setting can be adjusted only with MA remote controller.