Service manual

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Item
1. Basic
operation
Operation flow and applicable data, etc.
1. Operation control
Receiving the user’s operation condition setup, the opera-
tion statuses of indoor/outdoor units are controlled.
Description
Remote controller
Indoor unit
Control contents of remote controller
• ON/OFF (Air conditioner/Air purifier)
• Operation select (COOL/AUTO/DRY)
• Temperature setup
• Air direction
• Swing
• Air volume select (AUTO/LOW/LOW+/MED/MED+/HIGH)
• ECO
• ON timer setup
• OFF timer setup
• High power
Indoor unit control
• Command signal generating function of indoor unit
operation
• Calculation function (temperature calculation)
• Activation compensation function of indoor fan
• Timer function
• Indoor heat exchanger release control
• Clean function
• Indoor fan motor
• Louver motor
Outdoor unit
Outdoor unit control
• Frequency control of inverter output
• Waveform composite function
• Calculation function
(Temperature calculation)
• AD conversion function
• Delay function of compressor reactivation
• Current release function
• GTr over-current preventive function
• Compressor
• Outdoor fan motor
• Pulse motor valve
(P.M.V.)
Signal receiving
Indoor unit control
Operation command
Serial signal send/receive
Selection of
operation conditions
ON/OFF
Serial signal send/receive
Outdoor unit control
Inverter
~
1) The operation conditions are selected by the remote controller as shown in the below.
2) A signal is sent by ON button of the remote controller.
3) The signal is received by a sensor of the indoor unit and processed by the indoor controllers as
shown in the below.
4) The indoor controller controls the indoor fan motor and louver motor.
5) The indoor controller sends the operation command to the outdoor controller, and sends/
receives the control status with a serial signal.
6) The outdoor controller controls the operation as shown in the left, and also controls the
compressor, outdoor fan motor and pulse motor valve.