Operation Flowcharts; Indoor Unit Operation Flowchart - Panasonic Urban Multi MX1R Series Service Manual

Using r-407c / r-22
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PACD011001C2
1.

Operation Flowcharts

1.1

Indoor Unit Operation Flowchart

∗ 1 In the event of a malfunction, the malfunction code is displayed in the remote controller's malfunction
∗ 2 When the auxiliary electric heater is on, the fan stops after one minute residual operation.
∗ 3 When the drain-up kit is ON, it stops after five minutes residual operation.
Troubleshooting UM Combination "MA1R Series" Using R-407C
Initialize electronic expansion
valve YIE
Louver lock detection
Remote contoller lamp on
Operation ON/OFF?
Action of safety device?
Is operation display
Operation display lamp: ON
Air flow rate setting display: ON
Air flow direction setting display:
ON
Temperature setting display: ON
Fan or Temperature control?
Cooling or heating?
Cooling
Cooling operation
Heating operation
code display.
Start
Power on
Indicates previous settings for air flow
rate and direction and temperature
OFF
Operation display lamp: OFF
ON
YES
Operation display: Blinking
Malfunction code: Displayed
NO
YES
Depress reset Operation ON/OFF
lamp blinking?
switch
NO
Operation display: Off
Malfunction mode Display:
Cancelled
Fan
(Ventilation)
Temperature
contorl
Heating
Fan operation
A

Operation Flowcharts

∗1
∗2
Fan M1F :OFF
Electronic expansion valve
Y1E Closed
Louver M1S :OFF
Option
Optional auxiliary electric
heater (K1R): OFF
∗3
Drain-up kit (M1P): OFF
Humidifier (Hu) : OFF
(VF021)
483

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