MITSUBISHI ELECTRIC Electric Air Distribution Grille Indoor Cassette Instruction Manual

MITSUBISHI ELECTRIC Electric Air Distribution Grille Indoor Cassette Instruction Manual

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

Note : The phrase “Wired remote controller” in this operation manual refers only to the PAR-33MAA. If you need any information for the other remote controller, please refer to the instruction book included in this box.

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.

Symbols used in the illustrations
: Indicates a part which must be grounded.

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 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.
• 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 intakes 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.
• Young children must be supervised to ensure that they do not play with the air conditioner.
• If the refrigeration gas blows out or leaks, stop the operation of the air conditioner, thoroughly ventilate the room, and contact your dealer.
• 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.
• 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.
• 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.
• 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.

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 intakes or outlets.

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

2. Parts Names

Indoor Unit

SLZ-KF·NA

4-way Ceiling Cassette

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.

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)

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.
   Main menu: Press to move the cursor down.

8. Function button [F2]
   Main display: Press to decrease temperature.
   Main menu: Press to move the cursor up.

9. Function button [F3]
   Main display: Press to increase temperature.
   Main menu: Press to go to the previous page.

10. Function button [F4]
    Main display: Press to change the fan speed.
    Main menu: Press to go to the next page.

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.)

Most settings (except ON/OFF, mode, fan speed, temperature) can be made from the Menu screen.
(Refer to operation manual included with remote controller.)

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 (23 feet) in a direct line from the indoor unit in an area 45° to the left and right of the unit. However, illumination such as fluorescent 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 inspected. 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 humidity.
• 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.

Outdoor unit

3. Operation

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

3.1. Turning ON/OFF

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

Settable preset temperature range

3.2. Mode Selection

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.

Information for multi system air conditioner (Outdoor unit: MXZ series)

• Multi system air conditioner (Outdoor unit: MXZ series) can connect two or more indoor units with one outdoor unit. According to the capacity, 2 or more units can operate simultaneously.
• When you try to operate 2 or more indoor units with 1 outdoor unit simultaneously, one for the cooling and the other for heating, the operation mode of the indoor unit that operates earlier is selected. The other indoor units that will start the operation later cannot operate, indicating an operation state in blinking. In this case, please set all the indoor units to the same operation mode.
• There might be a case that the indoor unit, which is operating in “Auto” mode. Cannot change over to the operating mode “Cool”/”Heat” and becomes a state of standby.
• When indoor unit starts the operation while the defrosting of outdoor unit is being done, it takes a few minutes (max. about 15 minutes) to blow out the warm air.
• In the heating operation, though indoor unit that does not operate may get warm or the sound of refrigerant flowing may be heard, they are not malfunction. The reason is that the refrigerant continuously flows into it.

Automatic operation

• 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 2 °C (4 °F) or more above the set temperature for 15 minutes, the air conditioner switches to cooling mode. In the same way, if the room temperature remains 2 °C (4 °F) or more below the set temperature for 15 minutes, the air conditioner switches to heating mode.

3.3. Temperature setting

<Cool, Dry, Heat, and Auto>

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

• Refer to the table on page 7 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.

3.4. Fan speed setting

Notes :

• The number of available fan speeds depends on the type of unit connected.
• 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 in “STAND BY” or “DEFROST” states.
  2. When the temperature of the heat exchanger is low in the heating mode. (e.g. immediately after heating 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

3.5.2 Vane

Notes :

• 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 waiting for the mode change to take effect).
  3. In heat mode, when room temperature is higher than the temperature setting.

< How to set the fixed up/down air direction >

Notes : This function cannot be set depending on the outdoor unit to be connected.

• For SLZ-KF.NA series, only the particular outlet can be fixed to certain direction with the procedures below. Once fixed, only the set outlet is fixed every time air conditioner is turned on. (Other outlets follow UP/ DOWN air direction setting of remote controller.)

Explanation of word

• “Refrigerant address No.” and “Unit No.” are the numbers given to each air conditioner.
• “Outlet No.” is the number given to each outlet of air conditioner. (Refer to the illustration below.)
• “Up/Down air direction” is the direction (angle) to fix.

Note : The outlet No. is indicated by the number of grooves on both ends of each air outlet. Set the air direction while checking the information shown on the remote controller display.

Manual vane angle (Wired remote controller)

Note : Do not set the draft reduction in an environment with high humidity. Otherwise, condensation may form and drip.

Vane setting

Press the [SELECT] button to save the settings.
A screen will appear that indicates the setting information is being transmitted.
The setting changes will be made to the selected outlet.
The screen will automatically return to the one shown above when the transmission is completed.
Make the settings for other outlets, following the same procedures.

If all outlets are selected, will be displayed the next time the unit goes into operation.

Navigating through the screens
• To go back to the Main menu……………. [MENU] button
• To return to the previous screen ………. [RETURN] button

Manual vane angle (Wireless remote controller)

Confirmation procedure

3.6. 3D i-See sensor setting

3.6.1 3D i-See sensor setting

3.6.2 Air distribution

i-See button (Wireless remote controller)

3.6.3 Energy saving option

3.6.4 Seasonal airflow function

Notes : Any person at the following places cannot be detected.

• Along the wall on which the air conditioner is installed
• Directly under the air conditioner
• Where any obstacle, such as furniture, is between the person and the air conditioner

A person may not be detected in the following situations.

• Room temperature is high.
• A person wears heavy clothes and his/her skin is not exposed.
• A heating element of which temperature changes significantly is present.
• Some heat sources, such as a small child or pet, may not be sensed.
• A heat source does not move for a long time.

The 3D i-See sensor operates once approximately every 3 minutes to measure the floor temperature and detect persons in the room.

• The intermittent operating sound is a normal sound produced when the 3D i-See sensor is moving.
• When MA Remote Controller is used to control multiple refrigerant systems, No occupancy Auto-OFF cannot be used.

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. Care and Cleaning

Filter information

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

The icon cleaning. will appear when the filter on the main unit is due for

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.

Caution :

• Ask authorized people to clean the filter.

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, 122°F), 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 sucked-in air. Clean the filters using the methods shown in the following sketches.

Filter removal
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.

SLZ-KF·NA

1. Slide the levers 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 Intake grille levers
   • B Grille
   • C Intake grille D Filter

6. 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 DEFROST/STAND BY lamp
• B Operation 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 Operation lamp B means the start of operation.

Notes :

• Details of emergency mode are as shown below.
  Details of EMERGENCY MODE are as shown below.

Stopping operation

· To stop operation, press the button C or the button D for more than 2 seconds.

7. Trouble Shooting

8. Installation, relocation and inspection

Installation place
Avoid installing the air conditioner in the following places.

• Where flammable gas could leak.
• Where there is much machine oil.
• Salty place such as the seaside.
• Where sulfide gas is generated such as a hot spring.
• Where there is oil splashing or much oily smoke.

Caution : Do not install the unit where flammable gas could leak. If gas leaks and collects around the unit, it may cause an explosion.

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.

Electrical work

• Provide an exclusive circuit for power supply of the air conditioner.
• Be sure to observe the breaker capacity.

Warning :

• The customer should not install this unit. If the unit is installed incorrectly, fire, electric shock, injury due to a falling unit, water leakage, etc. may result.
• Do not connect using branched outlet or an extension cord, and do not attach many loads to one electric outlet.
  A fire or electric shock may result from poor contact, poor insulation, exceeding the permissible current, etc. Consult your dealer.

Caution :

• Apply grounding
  Do not connect a grounding wire to a gas pipe, water pipe, lightning rod or ground wire of a telephone. If a grounding is incorrect, it may cause an electric shock.

• Install an earth leakage breaker depending on the place where the air conditioner is to be installed (humid place, etc.). If the earth leakage breaker is not installed, it may cause an electric shock.

Inspection and maintenance

• When the air conditioner is used for several seasons, the capacity may be lowered due to dirt inside the unit.
• Depending upon the conditions of use, an odor may be generated or dirt, dust, etc. may prevent proper drainage.
• It is recommended to apply inspection and maintenance (charged) by a specialist in addition to normal maintenance. Consult your dealer.

Also consider operation sound

• Do not put an object around the air outlet of the outdoor unit. It may cause lowering of capacity or increase operating sound.
• If abnormal sound is heard during operation, consult your dealer.

Relocation

• When the air conditioner is to be removed or reinstalled because of rebuilding, moving, etc., special techniques and work are required.

Warning :
Repair or relocation should not be done by the customer.
If this is done incorrectly, it may cause a fire, electric shock, injury by dropping of the unit, water leakage, etc. Consult your dealer.

Disposal

• To dispose of this product, consult your dealer.

If you have any question, consult your dealer.

9. Specifications

This product is designed and intended for use in the residential, commercial and light-industrial environment.

Please be sure to put the contact address/telephone number on this manual before handing it to the customer.

BH79A345H01

Printed in Thailand

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