Mitsubishi PKFY-P40VLM-E, PKFY-P15VLM-E, PKFY-P50VLM-E, PKFY-P20VLM-ET, PKFY-P15VLM-ET Operation Manual

...

Air-Conditioners For Building Application

INDOOR UNIT

Кондиционеры для установки в помещениях ВНУТРЕННИЙ БЛОК Bina Uygulaması için Klimalar İÇ ÜNİTE

PKFY-P·VLM Series

OPERATION MANUAL

For safe and correct use, please read this operation manual thoroughly before operating the air-conditioner unit.

РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ

Для обеспечения правильного и безопасного использования следует ознакомиться с инструкциями, указанными в данном руководстве по эксплуатации, тщательным образом до того, как приступать к использованию кондиционера.

Işletme Elkitabı

Emniyetli ve doğru biçimde nasıl kullanılacağını öğrenmek için lütfen klima cihazını işletmeden önce bu elkitabını dikkatle okuyunuz.

FOR USER

ДЛЯ ПОЛЬЗОВАТЕЛЯ

KULLANICI İÇİN

English (EN)

Русский (RU)

Türkçe (TR)

Manual Download

http://www.mitsubishielectric.com/ldg/ibim/

EN Go to the above website to download manuals, select model name, then choose language.

DE Besuchen Sie die oben stehende Website, um Anleitungen herunterzuladen, wählen Sie den Modellnamen und dann die Sprache aus.

FR Rendez-vous sur le site Web ci-dessus pour télécharger les manuels, sélectionnez le nom de modèle puis choisissez la langue.

NL Ga naar de bovenstaande website om handleidingen te downloaden, de modelnaam te selecteren en vervolgens de taal te kiezen.

ES Visite el sitio web anterior para descargar manuales, seleccione el nombre del modelo y luego elija el idioma.

IT Andare sul sito web indicato sopra per scaricare i manuali, selezionare il nome del modello e scegliere la lingua.

EL Μεταβείτε στον παραπάνω ιστότοπο για να κατεβάσετε εγχειρίδια. Επιλέξτε το όνομα του μοντέλου και, στη συνέχεια, τη γλώσσα.

PT Aceda ao site Web acima indicado para descarregar manuais, seleccione o nome do modelo e, em seguida, escolha o idioma.

DA Gå til ovenstående websted for at downloade manualer og vælge modelnavn, og vælg derefter sprog.

SV Gå till ovanstående webbplats för att ladda ner anvisningar, välj modellnamn och välj sedan språk.

TR Kılavuzları indirmek için yukarıdaki web sitesine gidin, model adını ve ardından dili seçin.

RU Чтобы загрузить руководства, перейдите на указанный выше веб-сайт; выберите название модели, а затем язык.

UK Щоб завантажити керівництва, перейдіть на зазначений вище веб-сайт; виберіть назву моделі, а потім мову.

BG Посетете горепосочения уебсайт, за да изтеглите ръководства, като изберете име на модел и след това – език.

PL Odwiedź powyższą stronę internetową, aby pobrać instrukcje, wybierz nazwę modelu, a następnie język.

NO Gå til nettstedet over for å laste ned håndbøker og velg modellnavn, og velg deretter språk.

FI Mene yllä mainitulle verkkosivulle ladataksesi oppaat, valitse mallin nimi ja valitse sitten kieli.

CS Příručky naleznete ke stažení na internetové stránce zmíněné výše poté, co zvolíte model a jazyk.

SK Na webovej stránke vyššie si môžete stiahnuť návody. Vyberte názov modelu a zvoľte požadovaný jazyk.

HU A kézikönyvek letöltéséhez látogasson el a fenti weboldalra, válassza ki a modell nevét, majd válasszon nyelvet.

SL Obiščite zgornjo spletno stran za prenos priročnikov; izberite ime modela, nato izberite jezik.

RO Accesaţi site-ul web de mai sus pentru a descărca manualele, selectaţi denumirea modelului, apoi alegeţi limba.

ET Kasutusjuhendite allalaadimiseks minge ülaltoodud veebilehele, valige mudeli nimi ja seejärel keel.

LV Dodieties uz iepriekš norādīto tīmekļa vietni, lai lejupielādētu rokasgrāmatas; tad izvēlieties modeļa nosaukumu un valodu.

LT Norėdami atsisiųsti vadovus, apsilankykite pirmiau nurodytoje žiniatinklio svetainėje, pasirinkite modelio pavadinimą, tada – kalbą.

HR Kako biste preuzeli priručnike, idite na gore navedeno web-mjesto, odaberite naziv modela, a potom odaberite jezik.

SR Idite na gore navedenu veb stranicu da biste preuzeli uputstva, izaberite ime modela, a zatim izaberite jezik.

Contents

1. Safety Precautions .................................................................3

2. Parts Names ...........................................................................4

3. Operation ................................................................................9

4. Timer.....................................................................................12

To dispose of this product, consult your dealer.

Note

Fig.1

Note: The phrase “Wired remote controller” in this operation manual refers to the PAR-40MAA. If you need any information for the other remote controller, please refer to the instruction book included in this box.

Your MITSUBISHI ELECTRIC product is designed and manufactured with high quality materials and components which can be recycled and/or reused. This symbol means that electrical and electronic equipment, batteries and accumulators, at their end-of-

life, should be disposed of separately from your household waste. If a chemical symbol is printed beneath the symbol (Fig. 1), this chemical symbol means that the battery or accumulator contains a heavy metal at a certain concentration.

This will be indicated as follows: Hg: mercury (0,0005%), Cd: cadmium (0,002%), Pb: lead (0,004%)

Please, help us to conserve the environment we live in!

Compliance with the “India e-waste (Management) Rules, 2016” This product complies with the “India e-waste (Management) Rules, 2016” and prohibits use of lead, mercury, hexavalent chromium,

polybrominated biphenyls or polybrominated diphenyl ethers in concentrations exceeding 0.1% by weight and 0.01% by weight for cadmium, except for the exemption set in Schedule II of the Rule.

5. Emergency Operation for Wireless Remote-controller .........12

6. Care and Cleaning................................................................13

7. Troubleshooting ....................................................................15

8. Specifications .......................................................................17

1. Safety Precautions

Before installing the unit, make sure you read all the

“Safety Precautions”.

The “Safety Precautions” provide very important

points regarding safety. Make sure you follow them.

Please report to or take consent by the supply

authority before connection to the system.

Symbols used in the text

Warning: Describes precautions that should be observed to prevent danger of injury or death to the user.

Caution: Describes precautions that should be observed to prevent damage to the unit.

Warning:

• These appliances are not accessible to the general public.

• The unit must not be installed by the user. Ask the dealer or an authorized company to install the unit. If the unit is installed improperly, water leakage, electric shock or fire may result.

• Do not alter the unit. It may cause fire, electric shock, injury or water leakage.

• Do not stand on, or place any items on the unit.

• Do not splash water over the unit and do not touch the unit with wet hands. An electric shock may result.

• Do not spray combustible gas close to the unit. Fire may result.

• Do not place a gas heater or any other open-flame appliance where it will be exposed to the air discharged from the unit. Incomplete combustion may result.

• Do not remove the front panel or the fan guard from the outdoor unit when it is running.

• Never repair the unit or transfer it to another site by yourself.

• When you notice exceptionally abnormal noise or vibration, stop operation, turn off the power switch, and contact your dealer.

• Never insert fingers, sticks etc. into the air inlets or outlets.

• 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.

• This air conditioner is NOT intended for use by children or infirm persons without supervision.

• If the refrigeration gas blows out or leaks, stop the operation of the air conditioner, thoroughly ventilate the room, and contact your dealer.

Caution:

• Do not use any sharp object to push the buttons, as this may damage the remote controller.

•

Never block or cover the indoor or outdoor unit’s air inlets or outlets

• Never wipe the remote controller with benzene, thinner chemical rags, etc.

Symbols used in the illustrations

: Indicates a part which must be grounded.

• This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons.

• Children should be supervised to ensure that they do not play with the air conditioner.

• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

• When installing or relocating, or servicing the air conditioner, use

only the specified refrigerant (R410A) to charge the refrigerant lines. Do not mix it with any other refrigerant and do not allow air to remain in the lines. If air is mixed with the refrigerant, then it can be the cause of abnormal high pressure in the refrigerant line, and may result in an explosion and other hazards. The use of any refrigerant other than that specified for the system will cause mechanical failure or system malfunction or unit breakdown. In the worst case, this could lead to a serious impediment to securing product safety.

• Do not operate the unit for a long time in high humidity, e.g. leaving a door or window open. In the cool mode, if the unit is operated in a room with high humidity (80% RH or more) for a long time, water condensed in the air conditioner may drop and

wet or damage furniture, etc.

• Do not touch the upper air outlet vane or the lower air outlet damper during operation. Otherwise, condensation may form and the unit may stop operating.

Disposing of the unit

When you need to dispose of the unit, consult your dealer.

2. Parts Names

■ Indoor Unit

PKFY-P·VLM

Fan speed 4 speed + Auto

Vane

Louver Manual

Filter Normal Filter cleaning indication 100 hr Enter the model setting number for

the indoor unit you want to operate.*

* For systems that are capable of simultaneous cooling and heating operation, use the setting indicated in parentheses ( ).

For details on the setting procedure, refer to the Installation Manual.

■ PKFY-P·VLM

Wall Mounted

Steps 5 steps Auto swing

065 (001)

Filter

Air intake

VaneAir outletLouver

2. Parts Names

■

Wired Remote Controller

Controller interface

The functions of the function buttons change depending on the screen. Refer to the button function guide that appears at the bottom of the LCD for the functions they serve on a given screen. When the system is centrally controlled, the button function guide that corresponds to the locked button will not appear.

Main display Main menu

Room

Set temp.

Cool Auto

Fri

Main Main menu

Energy saving

4 3 2

Function buttons

7 8 9 0

▌1 [ON/OFF] button

Press to turn ON/OFF the indoor unit.

▌2 [SELECT] button

Press to save the setting.

▌3 [RETURN] button

Press to return to the previous screen.

▌4 [MENU] button

Press to bring up the Main menu.

▌5 Backlit LCD

Operation settings will appear.

When the backlight is off, pressing any button turns the backlight on

and it will stay lit for a certain period of time depending on the screen.

When the backlight is off, pressing any button turns the backlight on and does not perform its function. (except for the [ON/OFF] button)

Mode Temp. Fan

7 8 9 0 7 8 9 0

Menu screen

Operation

Vane·Louver·Vent. (Lossnay) High power Comfort

Main display:

Cursor

Function guide

7 8 9 0

▌6 ON/OFF lamp

This lamp lights up in green while the unit is in operation. It blinks while

the remote controller is starting up or when there is an error.

▌7 Function button [F1]

Main display: Press to change the operation mode. Menu screen: The button function varies with the screen.

▌8 Function button [F2]

Main display: Press to decrease temperature. Main menu: Press to move the cursor left. Menu screen: The button function varies with the screen.

▌9 Function button [F3]

Main display: Press to increase temperature. Main menu: Press to move the cursor right. Menu screen: The button function varies with the screen.

▌0 Function button [F4]

Main display: Press to change the fan speed. Menu screen: The button function varies with the screen.

2. Parts Names

Display

The main display can be displayed in two different modes: “Full” and “Basic”. The factory setting is “Full”. To switch to the “Basic” mode, change the setting on the Main display setting. (Refer to operation manual included with remote controller.)

* All icons are displayed for explanation.

2 3 4 5 6 7 @

Cool

Room

Set temp. Auto

Mode Temp. Fan

▌1 Operation mode

▌2 Preset temperature

▌3 Clock

Current time appears here.

▌4 Fan speed

▌5 Button function guide

Functions of the corresponding buttons appear here.

Fri

)

Cool

Set temp.

Fri

Auto

Mode Temp. Fan

▌4

Appears when the Weekly timer is enabled.

▌5

Appears while the units are operated in the energy-save mode. (Will not appear on some models of indoor units)

▌6

Appears while the outdoor units are operated in the silent mode.

(This indication is not available for CITY MULTI models.)

▌6

Appears when the ON/OFF operation is centrally controlled.

▌7

Appears when the operation mode is centrally controlled.

▌8

Appears when the preset temperature is centrally controlled.

▌9

Appears when the filter reset function is centrally controlled.

▌0

Indicates when filter needs maintenance.

▌1 Room temperature

Current room temperature appears here.

▌2

Appears when the buttons are locked.

▌3

Appears when the On/Off timer, Night setback, or Auto-off timer

function is enabled.

appears when the timer is disabled by the centralized control

system.

▌7

Appears when the built-in thermistor on the remote controller is activated to monitor the room temperature (1).

appears when the thermistor on the indoor unit is activated to

monitor the room temperature.

▌8

Indicates the vane setting.

▌9

Indicates the louver setting.

▌)

Indicates the ventilation setting.

▌!

Appears when the preset temperature range is restricted.

▌@

Appears when an energy-saving operation is performed using a “3D i-

See sensor” function. (not available)

▌# Centrally controlled

Appears for a certain period of time when a centrally-controlled item is operated.

▌$ Preliminary error display

An error code appears during the preliminary error.

Most settings (except ON/OFF, mode, fan speed, temperature) can be made from the Main menu. (Refer to Page 10.)

2. Parts Names

Wireless Remote-Controller (Optional parts)

Set Temperature buttons

Mode button (Changes operation mode)

Airﬂ ow button (Changes up/down airﬂ ow direction)

Timer ON button

Timer OFF button

Weekly timer ON/OFF button

(not available)

Transmission area

Not available

Remote controller display

Battery replacement indicator

OFF/ON button

Fan Speed button (Changes fan speed)

i-see button (not available)

LOUVER button (not available)

Menu button

SET/SEND button

CANCEL button

Up/Down buttons

Set Time button (Sets the time)

Operation mode

Cool Dry

Fan

Heat

* The initial setting is necessary.

Refer to Installation manual.

Temperature setting

The units of temperature can be changed. For details, refer to the Installation manual.

Vane setting

Step 1 Step 2 Step 3 Step 4 Step 5 Swing Auto

Auto (single set point)

Auto* (dual set point)

Reset button

Not available

Appears when a non-supported function is selected.

Battery replacement indicator

Appears when the remaining battery power is low.

Fan speed setting

2. Parts Names

Notes (Only for wireless remote controller):

When using the wireless remote controller, point it towards the receiver on the indoor unit.

If the remote controller is operated within approximately 2 minutes after power is supplied to

the indoor unit, the indoor unit may beep twice as the unit is performing the initial automatic

check.

The indoor unit beeps to confirm that the signal transmitted from the remote controller has

been received. Signals can be received up to approximately 7 meters in a direct line from the indoor unit in an area 45° to the left and right of the unit. However, illumination such as fluores-

cent lights and strong light can affect the ability of the indoor unit to receive signals.

If the operation lamp near the receiver on the indoor unit is blinking, the unit needs to be in-

spected. Consult your dealer for service.

Handle the remote controller carefully! Do not drop the remote controller or subject it to strong

shocks. In addition, do not get the remote controller wet or leave it in a location with high hu-

midity.

To avoid misplacing the remote controller, install the holder included with the remote controller

on a wall and be sure to always place the remote controller in the holder after use.

If the indoor unit beeps 4 times when you are using the wireless remote controller, switch the

auto mode setting to the AUTO (single set point) mode or AUTO (dual set point) mode.

For details, refer to the included Notice (A5 sheet) or the Installation Manual.

Battery installation/replacement

1. Remove the top cover, insert two LR6 AA

batteries, and then install the top cover.

Top cover

Two LR6 AA batteries Insert the negative (–) end of

each battery first. Install the batteries in the correct directions

(+, –)!

2. Press the Reset button.

Press the Reset button with an object that has a narrow end.

After battery installation/replacement, please

set the clock. For details on how to set the clock, refer to the operation manual included

with the remote controller.

3. Operation

■

About the operation method, refer to the operation manual that comes with each remote controller.

3.1. Turning ON/OFF [ON] [OFF]

Press the [ON/OFF] button.

The ON/OFF lamp will light up in green, and the operation will start.

Note: Even if you press the ON/OFF button immediately after shutting down the operation is progress, the air conditioner will not start for about 3 minutes. This is to prevent the internal components from being damaged.

■

Operation status memory

Remote controller setting Operation mode Operation mode before the power was turned off Preset temperature Preset temperature before the power was turned off Fan speed Fan speed before the power was turned off

■

Settable preset temperature range

Operation mode Preset temperature range Cool/Dry 19 ~ 30 ºC

Heat 17 ~ 28 ºC

Auto (Single set point) 19 ~ 28 ºC Auto (Dual set points) [Cool] Preset temperature range for the Cool mode

[Heat] Preset temperature range for the Heat mode

Fan/Ventilation Not settable

Press the [ON/OFF] button again.

The ON/OFF lamp will come off, and the operation will stop.

The settable temperature range varies with the model of outdoor units and remote controller.

3.2. Mode Selection

Fri

Room

Cool

Mode Temp. Fan

AutoSet temp.

Each pressing of the [F1] button cycles

through the following operation modes. Select the desired operation mode.

Cool Dry Fan

Auto Heat

• Operation modes that are not available

Automatic operation (single set point)

■ According to a set temperature, cooling operation starts if the room

temperature is too hot and heating operation starts if the room temperature is too cold.

■ During automatic operation, if the room temperature changes and

remains 1.5 °C or more above the set temperature for 3 minutes, the air conditioner switches to cool mode. In the same way, if the room temperature remains 1.5 °C or more below the set temperature for 3 minutes, the air conditioner switches to heat mode.

Cool mode

to the connected outdoor unit models will not appear on the display.

What the blinking mode icon means

The mode icon will blink when other indoor units in the same refrigerant

system (connected to the same outdoor unit) are already operated in a different mode. In this case, the rest of the unit in the same group can only be operated in the same mode.

3.3. Temperature setting

<Cool, Dry, Heat, and Auto (single set point)>

Fri

Room

Cool

Mode Temp. Fan

28.5

AutoSet temp.

Cool

Mode Temp. Fan

(Centigrade in 0.5-degree increments)

Room

28.5

Example display

Fri

■ Because the room temperature is automatically adjusted in order to

maintain a fixed effective temperature, cooling operation is performed

AutoSet temp.

a few degrees warmer and heating operation is performed a few degrees cooler than the set room temperature once the temperature is reached (automatic energy-saving operation).

3 minutes (switches from cooling to heating)

3 minutes (switches from heating to cooling)

Set temperature +1.5°C

Set temperature

Set temperature -1.5°C

Press the [F2] button to decrease the preset temperature, and press the [F3] button to increase.

• Refer to the table on this page for the settable temperature range for different operation modes.

• Preset temperature range cannot be set for Fan/Ventilation operation.

• Preset temperature will be displayed either in Centigrade in 0.5- or

1-degree increments, or in Fahrenheit, depending on the indoor unit model and the display mode setting on the remote controller.

3. Operation

Preset temperature for cooling

Preset temperature for heating

26.5

1 The current preset temperatures will appear. Press the [F2] or [F3]

button to display the Settings screen.

Preset temperature for cooling

Preset temperature for heating

2 Press the [F1] or [F2] button to move the cursor to the desired

temperature setting (cooling or heating).

Press the [F3] button to decrease the selected temperature, and [F4]

to increase.

• Refer to the table on page 9 for the settable temperature range for different operation modes.

• The preset temperature settings for cooling and heating in the

Auto (dual set point) mode are also used by the Cool/Dry and Heat

modes.

• The preset temperatures for cooling and heating in the Auto (dual set point) mode must meet the conditions below:

• Preset cooling temperature is higher than preset heating temperature.

• The minimum temperature difference requirement between cooling and

heating preset temperatures (varies with the models of indoor units connected) is met.

* If preset temperatures are set in a way that does not meet the minimum

temperature difference requirement, both preset temperatures will

automatically be changed within the allowable setting ranges.

3.4. Fan speed setting

Fri

Room

Cool

Mode Temp. Fan

28.5

AutoSet temp.

Each pressing of the [F4] button cycles through the following fan speeds.

Auto

• The available fan speeds depend on the models of connected indoor units.

Note:

The number of available fan speeds depends on the type of unit

connected. Note also that some units do not provide an “Auto” setting.

In the following cases, the actual fan speed generated by the unit will differ

from the speed shown the remote controller display.

1. While the display is showing “STAND BY” or “DEFROST”.

2. When the temperature of the heat exchanger is low in the heat mode.

(e.g. immediately after heat operation starts)

3. In HEAT mode, when room temperature is higher than the temperature

setting.

4. When the unit is in DRY mode.

3.5. Airflow direction setting

3.5.1 Navigating through the Main menu

Main Main menu

Operation

Press the [MENU] button on the Main display. The Main menu will appear.

Navigating through the screens

• To return to the Main screen ...... [RETURN] button

When the operation mode is set to the Auto (dual set point) mode, two preset temperatures (one each for cooling and heating) can be set. Depending on the room temperature, indoor unit will automatically

operate in either the Cool or Heat mode and keep the room temperature

within the preset range. The graph below shows the operation pattern of indoor unit operated in

the Auto (dual set point) mode.

Operation pattern during Auto (dual set point) mode

The room temperature changes corresponding to the change in the outside temperature.

Preset temp.

(COOL)

Preset temp.

(HEAT)

HEAT COOL HEAT COOL

Room temperature

Main Main menu

Initial setting

Press [F2] to move the cursor left. Press [F3] to move the cursor right.

3. Operation

Main

Main menu

Vane·Louver·Vent. (Lossnay) High power Timer Weekly timer OU silent mode

Main display:

Cursor Page

page

OU silent mode

Mon Tue Wed Thu Fri Sat Sun

Start Stop Silent

Setting display:

day

Fri

Room

Cool

Mode Temp. Fan

AutoSet temp.

Press [F3] to go to the previous

page.

Press [F4] to go to the next page.

Select the desired item, and press

the [SELECT] button.

The screen to set the selected item will appear.

Press the [RETURN] button to exit the Main menu and return to the Main display.

If no buttons are touched for

10 minutes, the screen will automatically return to the Main

display. Any settings that have not been saved will be lost.

3.5.2 Vane·Vent. (Lossnay)

Main Main menu

Operation

Vane·Louver·Vent. (Lossnay) High power Comfort

Main menu:

Cursor

Fri

Swing Off

Vent.Vane

Select “Operation” from the Main menu (refer to page 10), and press the [SELECT] button.

Select “Vane•Louver•Vent. (Lossnay)” from the Operation menu, and press the [SELECT] button.

Press the [F1] or [F2] button to go

through the vane setting options:

“Auto”, “Step 1”, “Step 2”, “Step 3”, “Step 4”, “Step 5” and “Swing”.

Select the desired setting.

Auto

Swing

Auto

Swing

Step 1 Step 2

Step 4Step 3

Step 5

Title

Not available

Unsupported function

Return:

The message at left will appear if the user selects a function not supported by the corresponding indoor unit model.

Room

Cool

Mode Temp. Fan

28.5

<Vent. setting>

Low

Vent.

Select “Swing” to move the vanes

up and down automatically.

Fri

When set to “Step 1” through “Step 5”, the vane will be xed at the se-

AutoSet temp.

lected angle.

•

under the vane setting icon

This icon will appear when the

vane is set to “Step 2” to “Step 5” and the fan operates at “Mid 1” to “Low” speed during cooling or

dry operation (depends on the model).

The icon will go off in an hour, and

the vane setting will automatically change.

Fri

Press the [F3] button to go through

the ventilation setting options in the

order of “Off ” , “Low” , and “High”.

* Settable only when LOSSNAY unit

is connected.

Off Low High

• The fan on some models of indoor

units may be interlocked with certain models of ventilation units.

3. Operation

Operation

Vane·Louver·Vent. (Lossnay) High power Comfort

Main menu:

Cursor

Note:

During swing operation, the directional indication on the screen

●

does not change in sync with the directional vanes on the unit.

● Available directions depend on the type of unit connected.

In the following cases, the actual air direction will differ from the

●

direction indicated on the remote controller display.

1. While the display is in “STAND BY” or “DEFROST” states.

2. Immediately after starting heat mode (while the system is wait-

ing for the mode change to take effect).

3. In heat mode, when room temperature is higher than the tem-

perature setting.

Press the [RETURN] button to go back to the Operation menu.

<[Manual] To Change the Airflow's Left/Right Direction>

* The louver button cannot be used.

• Stop the unit operation, hold the lever of the louver, and adjust to the desired direction.

* Do not set to the inside direction when the

unit is in the cooling or drying mode because

there is a risk of condensation and water

dripping.

Caution:

To prevent falls, maintain a stable footing when operating the unit.

3.6. Ventilation

For LOSSNAY combination

■ The following 2 patterns of operation is available.

• Run the ventilator together with indoor unit.

• Run the ventilator independently.

Note: (for wireless remote controller)

● Running the ventilator independently is not available.

● No indication on the remote controller.

4. Timer

■ Timer functions are different by each remote controller.

■ For details on how to operate the remote controller, refer to the appropriate operation manual included with each remote controller.

5. Emergency Operation for Wireless Remote-controller

When the remote controller cannot be used

When the batteries of the remote controller run out or the remote controller malfunctions, the emergency operation can be done using the emergency buttons on the grille.

A STANDBY lamp B OPERATING lamp C Emergency operation cooling switch D Emergency operation heating switch E Receiver

Starting operation

To operate the cooling mode, press the button C for more than 2 seconds.

•

To operate the heating mode, press the button D for more than 2 seconds.

• Lighting of the OPERATING lamp B means the start of operation.

Note:

Details of emergency mode are as shown below.

Details of EMERGENCY MODE are as shown below.

Operation mode COOL HEAT Set temperature 24°C 24°C

Fan speed High High

Airflow direction Horizontal (Step 1) Downward (Step 5)

Stopping operation

• To stop operation, press the than 2 seconds.

button C or the button D for more

B A

6. Care and Cleaning

■ Filter information

Fri

Room

Cool

Mode Temp. Fan

Maintenance menu

Error information Filter information Cleaning

Main display:

Cursor

AutoSet temp.

will appear on the Main display

in the Full mode when it is time to

clean the lters.

Wash, clean, or replace the lters when this sign appears. Refer to the indoor unit Instructions Manual for details.

Select “Filter information” from the Maintenance menu, and press the [SELECT] button.

Room

Cool

Mode Temp. Fan

AutoSet temp.

Fri

When the

Main display in the Full mode, the

system is centrally controlled and

the lter sign cannot be reset.

is displayed on the

If two or more indoor units are connected, filter cleaning timing for each unit may be different, depending on the filter type.

The icon

will appear when the filter on the main unit is due for

cleaning. When the filter sign is reset, the cumulative operation time of all units

will be reset. The icon

is scheduled to appear after a certain duration of

operation, based on the premise that the indoor units are installed in a

space with ordinary air quality. Depending on the air quality, the filter may require more frequent cleaning.

The cumulative time at which filter needs cleaning depends on the model.

• This indication is not available for wireless remote controller.

Filter information

Press Reset button after

filter cleaning.

Main menu:

Filter information

Reset filter sign?

Filter information

Cancel

Reset

Press the [F4] button to reset lter

sign. Refer to the indoor unit Instructions

Manual for how to clean the lter.

Select “OK” with the [F4] button.

A conrmation screen will appear.

Cleaning the filters

• Clean 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 source, such as an electric heater: this may warp them.

• Do not wash the filters in hot water (above 50°C), as this may warp them.

• Make sure that the air filters are always installed. Operating the unit without air filters can cause malfunction.

Caution:

• Before you start cleaning, stop operation and turn OFF the power supply.

• Indoor units are equipped with filters to remove the dust of suckedin air. Clean the filters using the methods shown in the following sketches.

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.

• When the filter is removed, do not touch the metallic parts inside the indoor unit, otherwise injury may result.

Filter sign reset

Main menu:

Navigating through the screens

• To go back to the Main menu ................ [MENU] button

• To return to the previous screen ........... [RETURN] button

6. Care and Cleaning

■ PKFY-P·VLM

1 Pull both the bottom corners of the grille to open the grille, then lift

the filter.

A Filter B Grille

Cleaning the indoor unit

• Wipe the outside of the unit with a clean, dry, soft cloth.

• Clean off any oil stains or finger marks using a neutral household detergent (such as dishwashing liquid or laundry detergent).

Caution:

Never use gasoline, benzene, thinner, scouring powder or any type of non-neutral detergent, as these substances may damage the unit’s case.

7. Troubleshooting

Having trouble? Here is the solution. (Unit is operating normally.)

Air conditioner does not heat or cool well.

When heating operation starts, warm air does not blow from the indoor unit soon.

During heat mode, the air conditioner stops before the set room temperature is reached.

Airflow up/down direction changes during operation or airflow up/down direction cannot be set.

When the airflow up/down direction is changed, the vanes always move up and down past the set position before finally stopping at the position.

A flowing water sound or occasional hissing sound is heard.

A cracking or creaking sound is heard.

The room has an unpleasant odor.

A white mist or vapor is emitted from the indoor unit.

Water or vapor is emitted from the outdoor unit.

The air conditioner does not operate even though the ON/OFF button is pressed. The operation mode display on the remote controller disappears.

“

” appears in the remote controller display.

When restarting the air conditioner soon after stopping it, it does not operate even though the ON/OFF button is pressed.

Air conditioner operates without the ON/OFF button being pressed.

Air conditioner stops without the ON/OFF button being pressed.

Remote controller timer operation cannot be set.

“PLEASE WAIT” appears in the remote controller display.

An error code appears in the remote controller display.

Draining water or motor rotation sound is heard.

■ Clean the filter. (Airflow is reduced when the filter is dirty or clogged.)

■ Check the temperature adjustment and adjust the set temperature.

■ Make sure that there is plenty of space around the outdoor unit. Is the

indoor unit air inlet or outlet blocked?

■ Has a door or window been left open?

■ Warm air does not blow until the indoor unit has sufficiently warmed

up.

■ When the outdoor temperature is low and the humidity is high,

frost may form on the outdoor unit. If this occurs, the outdoor unit performs a defrosting operation. Normal operation should begin after

approximately 10 minutes.

■ During cool mode, the vanes automatically move to the step 1 position

after 1 hour when the vane is set to “Step 2” to “Step 5”. This is to

prevent water from forming and dripping from the vanes.

■ During heat mode, the vanes automatically move to the step 1

position when the airflow temperature is low or during defrosting mode.

■ When the airflow up/down direction is changed, the vanes move to the

set position after detecting the base position.

■ These sounds can be heard when refrigerant is flowing in the air

conditioner or when the refrigerant flow is changing.

■ These sounds can be heard when parts rub against each due to

expansion and contraction from temperature changes.

■ The indoor unit draws in air that contains gases produced from the

walls, carpeting, and furniture as well as odors trapped in clothing,

and then blows this air back into the room.

■ If the indoor temperature and the humidity are high, this condition may

occur when operation starts.

■ During defrosting mode, cool airflow may blow down and appear like a

mist.

■ During cool mode, water may form and drip from the cool pipes and

joints.

■ During heat mode, water may form and drip from the heat exchanger.

■ During defrosting mode, water on the heat exchanger evaporates and

water vapor may be emitted.

■ Is the power switch of the indoor unit turned off? Turn on the power

switch.

■ During central control, “ ” appears in the remote controller display

and air conditioner operation cannot be started or stopped using the remote controller.

■ Wait approximately 3 minutes.

(Operation has stopped to protect the air conditioner.)

■ Is the on timer set?

Press the ON/OFF button to stop operation.

■ Is the air conditioner connected to a central remote controller?

Consult the concerned people who control the air conditioner.

■ Does “ ” appear in the remote controller display?

Consult the concerned people who control the air conditioner.

■ Has the auto recovery feature from power failures been set?

Press the ON/OFF button to stop operation.

■ Is the off timer set?

Press the ON/OFF button to restart operation.

■ Is the air conditioner connected to a central remote controller?

Consult the concerned people who control the air conditioner.

■ Does “ ” appear in the remote controller display?

Consult the concerned people who control the air conditioner.

■ Are timer settings invalid?

If the timer can be set, or appears in the remote controller

display.

■ The initial settings are being performed. Wait approximately 3

minutes.

■ The protection devices have operated to protect the air conditioner.

■ Do not attempt to repair this equipment by yourself.

Turn off the power switch immediately and consult your dealer. Be

sure to provide the dealer with the model name and information that appeared in the remote controller display.

■ When cooling operation stops, the drain pump operates and then

stops. Wait approximately 3 minutes.

7. Troubleshooting

Having trouble? Here is the solution. (Unit is operating normally.)

Noise is louder than specifications.

Nothing appears in the wireless remote controller display, the display is faint, or signals are not received by the indoor unit unless the remote controller is close.

The operation lamp near the receiver for the wireless remote

controller on the indoor unit is blinking.

Warm air blows from the indoor unit intermittently when heating mode is off or during fan mode.

The wireless remote controller does not operate (the indoor unit beeps 4 times).

Refrigerant noise is heard or warm air comes out from the suspended indoor unit.

■ The indoor operation sound level is affected by the acoustics of the

particular room as shown in the following table and will be higher than the noise specification, which was measured in an echo-free room.

High sound-

absorbing

rooms

Location

examples

Noise levels 3 to 7 dB 6 to 10 dB 9 to 13 dB

Broadcasting studio, music

room, etc.

Normal rooms

Reception

room, hotel

lobby, etc.

Low sound-

absorbing

rooms

Office, hotel

room

■ The batteries are low.

Replace the batteries and press the Reset button.

■ If nothing appears even after the batteries are replaced, make sure that

the batteries are installed in the correct directions (+, –).

■ The self diagnosis function has operated to protect the air conditioner.

■ Do not attempt to repair this equipment by yourself.

Turn off the power switch immediately and consult your dealer. Be sure

to provide the dealer with the model name.

■ When another indoor unit is operating in heating mode, the control valve

opens and closes occasionally to maintain stability in the air conditioning system. This operation will stop after a while. * If this will cause an undesirable rise in the room temperature in small

rooms, etc., stop the operation of the indoor unit temporarily.

■ Switch the auto mode setting to the AUTO (single set point) mode or

AUTO (dual set point) mode. For details, refer to the included Notice (A5 sheet) or the Installation Manual.

■ A small amount of refrigerant flows into the suspended indoor unit while

other indoor units are in operation at HEAT mode.

Warning:

If the air conditioner operates but does not cool or heat (depending on model) the room, consult your dealer since there may be a refrigerant leak. Be sure to ask the service representative whether there is refrigerant leakage or not when repairs are carried out. The refrigerant charged in the air conditioner is safe. Refrigerant normally does not leak. However, if refrigerant gas leaks indoors, and comes into contact with the fire of a fan heater, space heater, stove, etc., harmful substances will be generated.

+ 36 hidden pages

Mitsubishi PKFY-P40VLM-E, PKFY-P15VLM-E, PKFY-P50VLM-E, PKFY-P20VLM-ET, PKFY-P15VLM-ET Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual