Gree GMV-VQ680WM/C-X Service Manual page 76

Gree
If the box needs to connect to the indoor unit with capacity of over 16 kW, it must use two branches
controlled by the same mainboard for parallel connection. Set the DIP switch and connect the
communication line of the indoor unit as blow.
SA1
DIP1 DIP2 DIP3
1 0 0
0 1 0
0 0 1
0 0 0
4.3 Hydro Box
4.3.1 Capacity DIP Switch Settings(S1)
Capacity DIP switch S1 is 5 bit. Please do not change it.
Capacity of hydro box(kW)
Notes:
①
DIP switch at the ON end indicates 0;
②
DIP switch at the other end indicates 1;
4.3.2 Function DIP Switch Settings (S2)
Function DIP switch S2 is 4 bit. "1", "2", and "3" stand for "Water tank", "Floor heating" and "Solar
power" respectively. Each function DIP is as below: Setting to "number" means this function is connected;
setting to "ON" means this function is not connected. "1" , "2" and "3" must be set according to the
actual status of project. "4" cannot be changed. Otherwise, the unit may occur temperature sensor
malfunction or cannot operate.
DIP sequence
1
2
3
4
4.3.3 Wire Controller Function Settings (S2)
Operation Notices：
The power supply for all hydro box must be unified.
Prohibit installing the wired controller at wet or sunshine places.
Do not knock, throw or frequently disassemble the wired controller.
Do not operate the wired controller with wet hands.
When two wired controllers control one (or more) hydro box(es), the address of wired controller
should be different.
The appearance of wire controller is shown below：
Parallel connection
DIP4
0 Indoor unit No.1 and No.2
0 Indoor unit No.2 and No.3
0 Indoor unit No.3 and No.4
Indoor unit No.1 and No.2
1
Indoor unit No.3 and No.4
16
30
Meaning
Gree water tank
Floor heating
Solar power
NULL
GMV6 HR DC Inverter VRF Units Service Manual
Indoor unit communication connection for
Capacity DIP switch
1 2 3
ON OFF OFF
OFF ON OFF
DIP
Not connected Connected
ON
ON
ON
ON
74
mode exchange box
"1D1 1D2" or "2D1 2D2"
"2D1 2D2" or "3D1 3D2"
"3D1 3D2" or "4D1 4D2"
"1D1 1D2" or "2D1 2D2"
"3D1 3D2" or "4D1 4D2"
4 5
ON OFF
ON OFF
Ex-factory setting
OFF OFF
OFF OFF
OFF ON
OFF ON