Gree Ultra Heat GMV Multi VRF Heat Recovery Series Service Manual page 79

Ultra Heat GMV VRF Technical Service Manual_Heat Recovery Serial
One wired controller controlling one IDU
When two wired controllers control multiple IDUs, the wired controllers can be connected to any IDU
which is in the same series. Set one of the two wired controller to the secondary wired controller. The
number of IDUs controlled by the two wired controllers cannot exceed 16. All connected IDUs must be in
the same network.
The secondary wired controller can be set in start-up or shut down mode.
(1) Press the ―FUNCTION‖ button for 5 seconds on the wired controller to be set as the secondary
wired controller. The temperature area displays ―C00‖. Continue to press the ―FUNCTION‖ button for 5
seconds, the parameter setting interface is displayed and the temperature area displays ―P00‖.
(2) Select code P13 by pressing
value setting. When the parameter value flickers, select code 02 by pressing
the ―ENTER/CANCEL‖ button to finish setting.
One wired controller controlling multiple IDUs
Two wired controllers controlling multiple IDUs
or
Two wired controllers controlling one IDU
. Press the ―MODE‖ button to switch to parameter
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INSTALLATION
or . Then press