Gree GMV-N12U/C-T(U) Owner's Manual page 44

AHU-KIT
④ Even though the third party
adapter still needs to be set by Gree wired controller, such as "linkage function", "fresh air
function", etc.;
⑤ When several sets of AHU-KIT adapter are simultaneously used, and one controller needs
to control several sets of unit and the controller is the third party controller, the first bit of S2
dial code of adaptor for the third party's controller is adjusted as "1", and the first bit of S2
dial code of other adaptor is adjusted as "0" and connected to Gree wired controller.
6.3.3 Connection between the Third Party Controller and AHU-KIT Adapter
AHU-KIT adapter is connected with the third party controller via dry contact analog quantity
signal interface to realize control of unit, feedback of operating status and error protection, etc.
(1) Definition of interfaces
1) Signal from the third party controller to AHU-KIT adapter
Type of
Function
interface
ON/OFF Dry contact
Cooling mode Dry contact
Heating mode Dry contact
Air supply mode Dry contact
Feedback of
Dry contact
AHU error status
Analog voltage
Temperature
signal DC
setting
(0-10V)
Connect
to XT4 (1)
controller is selected, engineering setting of AHU-KIT
Wiring Wiring
board number
4、5
XT5
XT5 6、7
8、9
XT5
XT5 10、11
XT4、 XT4(1)、
XT5 XT5(1)
2(+)、3(-)
XT5
XT5
AHU Temperature ON/OFF
error
setting
Description of signal
When it is connected, it means ON; when it is
disconnected, it means OFF
When it is connected, it means cooling; when it is
disconnected, it means not cooling
When it is connected, it means heating; when it is
disconnected, it means not heating
When it is connected, it means air supply; when it is
disconnected, it means not air supply
When it is connected, it means AHU has no error;
when is it disconnected, it means AHU has error
①Corresponding set temperature for input DC 0-10V
is defaults to 16~30°C(60.8~86°F) (please see the
setting of signal for temperature control)
②Corresponding set temperature of 13~27 ℃
(55.4~80.6°F), it is necessary to specify the setting of
the wire controller XE70-33/H to achieve
Cooling Heating
mode mode
Fig.6.3.1
40
Air supply
mode