Using Sw4 In Outdoor Unit - Mitsubishi Electric PCA-M-HA Series Installationshandbuch

7. Test run
Step 2 Switch the remote controller to "Test run".
1 Select "Test run" from the Service menu, and press the [SELECT] button. (Fig. 7-1)
2 Select "Test run" from the Test run menu, and press the [SELECT] button. (Fig. 7-2)
3 The test run operation starts, and the Test run operation screen is displayed.
Step 3 Perform the test run and check the airflow temperature.
1 Press the [F1] button to change the operation mode. (Fig. 7-3)
Cooling mode: Check that cool air blows from the unit.
Heating mode: Check that warm air blows from the unit.
Step 4 Confirm the operation of the outdoor unit fan.
The speed of the outdoor unit fan is controlled in order to control the performance of the unit. Depending on the ambient air, the fan will rotate at a slow speed and will keep
rotating at that speed unless the performance is insufficient. Therefore, the outdoor wind may cause the fan to stop rotating or to rotate in the opposite direction, but this is
not a problem.
Step 5 Stop the test run.
1 Press the [ON/OFF] button to stop the test run. (The Test run menu will appear.)
Note: If an error is displayed on the remote controller, see the table below.
LCD Description of malfunction
P1 Intake sensor error
P2 Pipe sensor error (liquid pipe)
Freezing/overheating protection
P6
operation
P8 Pipe temperature error
* If other error occur, please refer to indoor unit and outdoor unit Service Handbook.
See the table below for the details of the LED display (LED 1, 2, and 3) on the indoor controller board.
LED1 (microcomputer power supply)
LED2 (remote controller power supply)
LED3 (indoor/outdoor unit communication)
Note: If the unit is operated continuously during a test run, the unit stops after 2 hours.
7.2.2. Using SW4 in outdoor unit
Refer to the outdoor unit installation manual.
7.3. Self-check (Fig. 7-2)
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Refer to the installation manual that comes with each remote controller for details.
LCD Description of malfunction
P9 Pipe sensor error (dual-wall pipe)
FB Indoor controller board error
U*, F*
(* indicates an Outdoor unit malfunction
alphanumeric Refer to the wiring diagram for the
character outdoor unit.
excluding FB.)
Indicates whether control power is supplied. Make sure that this LED is always lit.
Indicates whether power is supplied to the wired remote controller. The LED is lit only for the indoor unit that is connected
to the outdoor unit that has an address of 0.
Indicates whether the indoor and outdoor units are communicating. Make sure that this LED is always blinking.
Service menu
Test run
Input maintenance info.
Setting
Check
Others
Main menu:
Cursor
F1 F2 F3 F4
Fig. 7-1
Test run Remain
Pipe
Cool
Switch disp.
Mode Fan
F1 F2 F3 F4
Fig. 7-3
LCD
E0 ~ E5
E6 ~ EF
Test run menu
Test run
Drain pump test run
Service menu:
Cursor
F1 F2 F3 F4
Fig. 7-2
Description of malfunction
Communication error between the
remote controller and the indoor
unit
Communication error between the
indoor unit and the outdoor unit
11
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