Mitsubishi Electronics SKM22ZD-S, SKM35ZD-S About the Multiple Air-conditioner, Troubleshooting

Page 18

About the Multiple Air-conditioner

Simultaneous Operation

The air-conditioners cannot be in different operating modes at the same time, such as one unit being in the “Cool” mode and one unit being in the “Heat” mode.

When conducting different operations, the air conditioner that was operated first will be given priority, so the air conditioner that is operated after that will conduct air blowing operation.

When you want to give priority to the air conditioner that was started later, either stop the air conditioner that has priority or cause the operation type of the unit operated first to match that of the unit operated second.

Automatic Operation

When the remote controller operation switch is in the “Auto” mode the air-conditioner automatically selects either “Cool,” “Dry,” or “Heat” when operation is started depending on the room temperature.

During simultaneous operation of air-conditioner units, operation modes may be automatically changed in response to the temperatures of the individual rooms; this will result in the operation of the out-door unit being stopped. In such a case, COOL or HEAT mode should be used instead of AUTO. (This is only relevant when more than one air-conditioner unit is being used.)

Refrigerant (oil) recovery operation

If the all of the indoor units are not operated at the same time for an extended period, the cooling or heating performance may temporarily decrease. This is in order to control the recovery of the refrigerant (oil) in the stopped indoor unit(s). At this time, the sound of refrigerant flowing may be heard from the stopped indoor unit(s).

Troubleshooting

Please carry out the following checks before making a service call.

The air conditioner does not work at all.

Has the power switch been

Has the timer been set in the

Is there a power failure or a

turned off?

"ON" position?

blown fuse?

 

 

 

Poor cooling or heating

Have you set the thermostat at a

Is the air filter clean? (Not

Did you leave any doors or

suitable temperature?

clogged?)

windows open?

suitable

 

 

temperature

 

 

 

 

 

If the air conditioner does not oper-

ate properly after you have checked the left points, or if any doubt still exists after you have consulted page 18, or if things happen as shown on page 19, switch off the power and contact your dealer.

Poor cooling

Is there any direct sunlight en- tering the room?

Is there a heat source in the room?

Are there too many people in the room?

A new refrigerant (R410A) is used in this air-conditioner. When asking the dealer for service or inspection and maintenance, explain the dealer about this matter.

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Contents USER’S Manual Contents Operation Precautions Safety precautionsInstallation Precautions Do not install near places where inflammable gas may leakPrecautions for Transfer or Repairs Do not sit on the outdoor unit nor put anything on itDo not touch the aluminum fins on the air heat exchanger Choice of operations and features CharacteristicsChoise of operations Name of each part and its function Indoor UnitOutdoor Unit SCM45ZD-S SCM80ZD-S SCM60ZD-S Removal, installation of suction grill How to open the suction grillHow to close the suction grill Unit indication sectionTransmission procedure Operation sectionIndication section Auto mode operation procedure Temperature adjustment during AutoCOOL/HEAT/DRY mode operation procedure Concerning high power operationConcerning economy operation Air scroll Air flow direction adjustment procedureEmergency run operation Swing FlapPresent time setting procedure OFF-TIMER operation procedureON-TIMER operation procedure Program Timer operation procedureAbout FAN Speed About Timer operationRemote control handling procedure Replacing the batteriesSet a suitable room temperature Operating hintsAvoid direct sunlight and draught During the operational season MaintenanceBefore maintenance At the end of the seasonFeature Color Has the unit been installed correctly?Suitable installation position Inspection and maintenanceAbout the Multiple Air-conditioner TroubleshootingRefrigerant oil recovery operation Simultaneous OperationPlease remember When to contact your distributor without delay Power Blackout Auto Restart FunctionAir conditioner operating conditions Page Inhalt Vorsorge IM Betrieb Vorsichtsmassnahmen BEI DER InstallationSicherheitsvorschriften Den Körper nicht längere Zeit dem Kühlluftstrom aussetzenScher nicht berühren VORSORGEMAßNAHMEN BEI Versetzung Oder ReparaturenDie Aluminiumrippen am Wärmetau Heit kontrollierenUnterschiedliche Betriebsarten KennzeichenNamen der Teile und ihre Funktionen InnengerätAussengerät SCM45ZD-S SCM80ZD-S SCM60ZD-S Schließen des Ansaugluftgitters AnzeigenteilÖffnen des Ansaugluftgitters ON/OFF Schalter des GerätesBedienungsteil ÜbermittlungTemperatureinstellung bei Auto Auto BetriebZür Betriebsart HI Power COOL/HEAT/DRY BetriebZür Betriebsart Economy Einstellung der Luftströmungsrichtung NotbetriebMemory Flap Klappenstopp Betrieb des Ausschalttimers Verfahren zur Einstellung der aktuellen ZeitDie Taste Einschalttimer drücken Betrieb des EinschalttimersBetrieb des Programm-TIMERS Einstellung des EINSCHALTTIMER-BetriebsTimer Betrieb Umgang mit der FernbedienungBatterien auswechseln Beim Umgang mit der Fernbedienung folgendes beachten Wenn die Fernbedienung nicht funktioniertBetriebshinweise Einstellung der üblichen Raum Filter regelmäßig reinigenWährend der Betriebssaison WartungVor der Wartung Bei Ende der SaisonAchten Sie auf das Betriebsgeräusch Ist das Gerät einwandfrei installiert?Angemessene Installation Gegenstand Merkmal FarbeGleichzeitiger Betrieb Zur MehrfachklimaanlageFehlersuche Automatischer BetriebBitte beachten Betriebsbedingungen für die Klimaanlage Stromausfall-NeustartfunktionMechanismen und Leistung des Heat Betriebes Kennzeichen beim Heat BetriebSelbstdiagnose EntfrostungAIR-CONDITIONING & Refrigeration Systems Headquarters AIR-CONDITIONER Division