MULTI VRF-Ⅱ INDOOR UNIT SERVICE MANUAL EUROPEAN/LATIN AMETICA (R410A)
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(2) Project number of multiple IDUs
Project number query of IDUs in one-to-many mode: Press and hold the “FUNCTION” button for five
seconds in power-on or power-off status to enter the parameter query interface "C00". Press “▽” to switch
to “C01”. Press the “MODE” button to enter query. The timer area displays the project numberes of IDUs
from small to large. Press “△” or “▽” to switch project numberes. Synchronously, the double-eight digital
LED of the IDU embedded or connected with an LED panel displays its own project number.
Note: It is normal if the buzzer of the IDU operated by the wired controller rings. The purpose of ringing
the buzzer is to facilitate engineering commissioning personnel to locate the IDU, especially for the IDU
without any LED panel because it cannot display its project number.
Project number query of IDUs in the entire communication network: Press and hold the “FUNCTION”
button for five seconds in power-on or power-off status to enter the parameter query interface "C00".
Press “▽” to switch to “C18”. Press the “MODE” button to enter query. The timer area of each wired
controller in the entire network displays the project number of the corresponding IDU. Synchronously, the
double-eight digital LED of each IDU embedded or connected with an LED panel displays its own project
number.
Method for quitting query:
Quit the “C18” query interface.
Press the “ON/OFF” button on any wired controller in the network.
(3) Project number settings of IDU
Press and hold the “FUNCTION” button for five seconds in power-on or power-off status to enter the
parameter query interface “C00”. Continuously press the “MODE” button for three times, and then
press and hold the “FUNCTION” button for five seconds to enter the engineering parameter setting
interface. The temperature area displays “P00”. Press "▽" to switch to “P42”.
Single IDU: Press the “MODE” button. The project number blinks in the timer area. Press “△” or
“▽” to adjust the project number, and then Press the “ENTER” button to confirm and return to
the upper-level menu.
One-to-many: Press the “MODE” button to enter the IDU selection menu. Press “△” or “▽” to
switch IDUs. Press the “MODE” button to set the project number of the current IDU in the same
method as above.
5.1.3 User Parameter Query
User parameters can be queried in power-on or power-off status.
(1) Press and hold the “FUNCTION” button for five seconds to enter the user parameter query interface.
The temperature area displays “C00” and “View” is on.
(2) Select a parameter code by pressing “ ” or “ ”.
(3) Press the “ENTER/CANCEL” button to return to the upper-level menu till quitting parameter query.
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