Mitsubishi Electric PLFY-NAMU-A Operation Manual Download Page 6

6

 Caution:

• Before you start cleaning, stop operation and turn OFF the power supply.
• Indoor units are equipped with filters to remove the dust of sucked-in air.

Clean the filters using the methods shown in the following sketches.

PLFY-NAMU-A

1

Pull the knob on the intake grille in the direction indicated by the arrow and it
should open.

2

Open the intake grille.

3

Release the knob on the center edge of the intake grille and pull the filter forward
to remove the filter.

A

Knob

B

Grille

C

Intake grille

D

Filter

4. Care and cleaning

B

A

D

C

PLFY-NAMU-A

5. Troubleshooting

State of Machine

It does not run.

Air flows out but it does not cool enough or heat
enough.

Cool air or warm air does not come out.

The sound of the exhaust and rotation of the motor
can still be heard after stop of running.

Troubleshooting

Press the [ON/OFF] button after power restoration.

Check the set temperature.
Clean up the filter.

Wait for a while.
The restart-preventing circuit is in operation for 3 minutes.

Wait for a while.
Indoor unit operation was started anew during the heating and defrosting operation.

Wait for 3 minutes.
The machine stops after running a drain-up mechanism for 3 minutes when air-cooling operation is stopped.

Before you ask for repair service, check the following points:

The following symptoms are not air conditioner failures:

• The air blown out from the air conditioner can sometimes give off odors. This is due to cigarette smoke contained in the air of the room, the smell of cosmetics, the walls,

furniture, etc., absorbed in the air conditioner.

• A hissing noise can be heard immediately after the air conditioner is started or stopped. This is the sound of the refrigerant flowing inside the air conditioner. The problem is

insignificant.

• The air conditioner sometimes snaps or clicks at the beginning or end of cooling/heating operation. This is the sound of friction on the front panel and other sections due to

inflation and contraction caused by temperature change. The problem is insignificant.

Range of application

The range of working temperatures for both the indoor and outdoor units of the series Y, R2, Multi-S is as below.

 Caution:

The use of your air conditioner outside the range of working temperature and humidity can result in serious failure.

Note: As an applicable humidity standard for both indoors and outdoors, we recommend use within a range of 30 - 80% relative humidity.

PUHY

23 

°

F - 110 

°

FDB

 5 

°

F - 60 

°

FWB

Mode

Cooling

Heating

Indoor unit

59 

°

F - 75 

°

FWB

59 

°

F - 81 

°

FDB

Outdoor unit

PURY

23 

°

F - 110 

°

FDB

°

F - 60 

°

FWB

PUMY

23 

°

F - 115 

°

FDB

°

F - 60 

°

FWB

Summary of Contents for PLFY-NAMU-A

Page 1: ...rs For Building Application INDOOR UNIT PLFY NAMU A PKFY NAMU A PKFY NGMU A PKFY NFMU A OPERATION MANUAL For safe and correct use please read this operation manual thoroughly before operating the air conditioner unit ...

Page 2: ...the buttons as this may damage the remote controller Never wipe the remote controller with benzene thinner chemical rags etc Never block or cover the indoor or outdoor unit s intakes or outlets Warning Do not remove the front panel or the fan guard from the outdoor unit when it is running When you notice exceptionally abnormal noise or vibration stop operation turn off the power switch and contact...

Page 3: ...door unit When a remote controller for one indoor unit is used to change modes at the same time as a different indoor unit is working together with the outdoor unit the operation underway stops and the new operation begins Until the old operation is complete the display on the remote controller flashes to indicate that the new operation is in waiting status Warning Check and confirm the power circ...

Page 4: ... impossible PKFY NFMU A has 2 stage Low High 3 5 Adjusting the vertical airflow direction The vertical air vane helps select the vertical direction of the airflow 1 Press AIR DIRECTION button to select the vertical airflow direction Each time you press the button the option changes are displayed on the remote controller as shown below If the room temperature is higher than the temperature set on t...

Page 5: ...ean the filters using a vacuum cleaner If you do not have a vacuum cleaner tap the filters against a solid object to knock off dirt and dust If the filters are especially dirty wash them in lukewarm water Take care to rinse off any detergent thoroughly and allow the filters to dry completely before putting them back into the unit Caution Do not dry the filters in direct sunlight or by using a heat...

Page 6: ... when air cooling operation is stopped Before you ask for repair service check the following points The following symptoms are not air conditioner failures The air blown out from the air conditioner can sometimes give off odors This is due to cigarette smoke contained in the air of the room the smell of cosmetics the walls furniture etc absorbed in the air conditioner A hissing noise can be heard ...

Page 7: ...ille H inch W inch D inch Net weight Grille Ibs DRY CFM WET CFM Noise level Low Middle2 Middle1 High dB A PLFY Series Fan Airflow rate Low Middle2 Middle1 High PKFY 08NAMU A PKFY 12NGMU A PKFY 20NFMU A PKFY 32NFMU A Single 208 230V 60Hz 8 000 12 000 20 000 32 000 9 000 13 500 22 500 35 500 11 5 8 13 3 8 13 3 8 32 3 32 39 55 1 8 66 1 8 6 7 32 9 1 4 9 1 4 19 35 53 62 170 180 200 210 280 340 370 410 ...

Page 8: ...phone number on this manual before handing it to the customer This product is designed and intended for use in the residential commercial and light industrial environment HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN BG79S714H02 ...

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