Gree GMV-PD140W/NAB-K

89
DC Inverter Multi
VRF Service Manual
7.3 Wiring Sketch Map
7.3.1 Connection of power cord and communication line
The indoor unit and outdoor unit shall be powered separately.
Outdoor unit
Indoor unit A Indoor unit B Indoor unit N
Power supply Power supply Power supply Power supply
L1 L2 L3 N
Terminal board
CN10
Terminal board Terminal board Terminal board
2-core
communication
line
2-core
communication
line
2-core
communication
line
Wiring
(resistor matching)
CN20
Connection Schematics for Indoor / Outdoor Power Cords and Communication Line (3-phase)
Outdoor unit
Indoor unit A Indoor unit B Indoor unit N
Power supply Power supply Power supply Power supply
LN PE
Terminal board
CN10
Terminal board Terminal board Terminal board
2-core
communication
line
2-core
communication
line
2-core
communication
line
Wiring
(resistor matching)
Connection Schematics for Indoor / Outdoor Power Cords and Communication Line
7.4 Dial-up
Gree DC Multi VRF unit is provided with three dial-up, i.e. function dial-up, address dial-up and capacity
dial-up. ou may adjust the function dial-up to set the control, mode and functions of the unit; adjust the address
dial-up to set the matching relation between indoor unit and wired controller; and adjust the capacity dial-up to
set the capacity demands of the indoor unit.
7.4.1 Function Dial-up
CAUTIONS!
The S7 function dial-up is located on the mainboard of indoor unit. It can be operated only
when the client needs to change the default function settings; otherwise the default position shall be
maintained.
Functional dial switch S7
DIP swicth Functional Description:
Dial-up Setting
0 (ON Position) 1
1(S/R) Setting of memory mode Standby (S) Restore (R)
2(L/I) Setting of control mode Wired control (L) Remote control (I)
3(M/S) Setting of master / slave indoor unit Master indoor unit (M) Slave indoor unit (S)
4(I/O) Setting of ambient temperature acquisition point Return air inlet (I) Receiver (O)
5(L/H) Setting of high / low static pressure fan Low static pressure (L) High static(H)