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MULTI VRF-Ⅱ INDOOR UNIT SERVICE MANUAL EUROPEAN/LATIN AMETICA (R410A)

Method 2:

Step 1: Press and hold the “FUNCTION” button for five seconds in power-on or power-off status to enter

the parameter query interface.

Step 2: Press and hold the “FUNCTION” button for five seconds in "C00" status to enter the parameter

setting interface.

Step 3: Press “▲” or “▼” to switch level 2 parameter codes till “P10” is displayed on the temperature area.

Step 4: Press the “MODE” button to set the parameter to "01" and then Press the “ENTER” button. If the

setting is successful, "MASTER" on the wired controller will be on.

Master IDU Display

① For IDUs connected with wired controllers, "MASTER" on the wired controller connected with the

master IDU will be on.

② For IDUs embedded or connected with LED panels, the operation LED on the LED panel of the

master IDU will blink three times.

Note: After the master IDU is successfully set, stick the “

MASTER

” flag to the wired controller or unit panel

for convenience of user operation and engineering maintenance. This flag is placed in the package bag

of the ODU.

5.1.2 Project number Query and Settings

(1) Project number query of a single IDU

Press and hold the “FUNCTION” button for five seconds in power-on or power-off status to enter the

parameter query interface "C00". The timer area of the wired controller displays the project number of the

current IDU. Synchronously, the double-eight digital LED of the IDU embedded or connected with an LED

panel displays its own project number. If the current wired controller works in one-to-many mode, the

timer area displays the IDU that has the minimum project number.

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