About the Multiple Air-conditioner
Simultaneous Operation
•The
•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
•During simultaneous operation of
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? |
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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 |
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temperature |
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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
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