Mitsubishi-electric PFD-P250 • 500VM-A User Manual download pdf (Page 7)

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3.2. Selecting operation

When selecting operation

1. Press the

3 [selecting operation] button

Consecutive press of the selecting operation button switches the operation

over to E “

,” “ ,” “ ,” (“ ”), and (“ ”). For the contents of operation,

check the display.

For cooling

Press the

3 [selecting operation] button and bring up the “ ” display.

For dry

Press the

3 [selecting operation] button and bring up the “ ” display.

• The indoor fan turns to the low-speed operation, disabling the change of fan

speed.

• Dry operation cannot be carried out at a room temperature of less than 18 °C.

For fan

Press the

3 [selecting operation] button and bring up the “ ” display.

• The fan operation functions to circulate the air in the room.

• The temperature of the room cannot be set by fan operation.

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 ex-

cessive 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.

Caution:

• When the unit is used together with burners, thoroughly ventilate the

area. Insufficient ventilation can result in accidents due to oxygen defi-

ciency.

• Never place a burner at a place where it is exposed to the airflow from the

unit.

Doing so can result in imperfect combustion of the burner.

• The microcomputer functions in the following cases:

• The fan is not moving at the set speed.

- In some models, the system switches over to faint airflow when the tempera-

ture of the room reaches the set temperature. In other cases, it stops to

prevent any cool air from escaping during the defrosting operation.

3.3. Room temperature adjustment

To change room temperature

Press the

1 [room temperature adjustment] button and set the room tem-

perature of your choice.

Pressing

or once changes the setting by 1 °C.

If the pressing is continued, the setting continues to change by 1 °C.

• Indoor temperature can be set within the following range.

Cooling/dry: 14 - 30 °C

• It is impossible to set the room temperature by the air-blow operation.

* The range of room temperature display is 8 - 39 °C. Outside this range, the

display flashes either 8 - 39 °C to inform you if the room temperature is lower or

higher than the displayed temperature.

3.4. Time setting

• Set the current time after turning ON the power of the unit or after restoration

from a power failure.

• It can be set regardless of the operation of the indoor unit.

• During the time operation, the time-setting button becomes void, disabling time

setting.

1. Press the

4 [time selection] button and bring up the

A “current time”

display

• Every time it is pressed, the display changes.

CLOCK









“current

time”

(no display)

“timer end

time”

OFF









“timer start

time”









Caution:

When the current time is not yet set, the “CLOCK (current time)” display

flashes, disabling the setting of timer operation.

2. Set the current time by pressing the

or button

• The time cannot be set while the C “timer on” is displayed.

• While the A “CLOCK” time is displayed, press the time setting 4

buttons and set the time.

• The setting advances one minute every time the 4

button is pressed

once, and retrogresses one minute every time the 4

button is pressed

once.

When respective 4 / buttons are pressed continuously, the time

display goes fast forward. It advances in the order of 1 minute unit - 10 minute

unit - one hour unit.

• About 10 seconds after the button operation has been completed, the C “cur-

rent time” and A “CLOCK” displays disappear.

Caution:

• Remote controller is equipped with a simplified clock with a precision of

about + or - one minute per month.

• The time must be readjusted (reset) every time the unit is subjected to a

power stop of the unit or a power failure.

3.5. Timer setting

• If the timer is set, the unit starts (stops) at the set time, and the time mode is

terminated.

• When you wish to confirm the starting and ending time, press the 4 [time

selection] button while C “

” is displayed.

Function of timer

On-timer

Set the on-timer for the time the working day begins in your company.

When the set start time arrives, the unit starts operation.

Off-timer

Use the off-timer as a reminder to turn off the unit. When the set end-work time

arrives, the unit stops operation.

There are three methods for using the timer.

1. ON/OFF Timer When setting both starting and ending time

2. On-timer When only setting the starting time

(Ending time is set to “ - - : - - ”)

3. Off-timer When only setting the ending time

(Starting time is set to “ - - : - - ”)

Display example of timer setting

The example shows a timer set for operation start at 8:00 and end at 17:00.

1. Press the

2 [timer/continuous] button and bring up the

C no display

2. Press the

4 [time selection] button and bring up the

A “Timer start time”

display

3. Press the

( ) button of the

4 [time selection] and set the

starting time

When using it as an off-timer, set the starting time to “ - - : - - ”.

The “ - - : - - ” is displayed next to 23:50.

4. Press the

4 [time selection] button and bring up the

A “Timer end time”

display

5. Press the

( ) button of the [time switch] and set the ending

time

When using it as an on-timer, set the ending time to “ - - : - - ”.

The “ - - : - - ” is displayed next to 23:50.

6. Press the

2 [timer/continuous] button and bring up the

C “

” display

Bringing up the C “

” display completes the setting.

Every time the 4

( ) button of the 4 [timer selection] is pressed once,

it advances (or retrogresses) by 10 minutes.

If the button is pressed continuously, it advances (or retrogresses) continuously.

First set the hour digit and then set the minute digit.

When the ON/OFF timer mode is set, you can run (on-timer) or stop (off-timer)

operation by pressing the B [ON/OFF] button even when there is remaining time.

Release

Press the

2 [timer/continuous] button and disappear the “ ” display.

ON OFF

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Mitsubishi-electric PFD-P250 • 500VM-A User Manual Page 7

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