Gree SXVD300LCJ2/A-K User Manual

GMV5 Home DC Inverter Multi VRF Units
45
Chapter 2: Control
1. Unit Control
1.1 General Control Method
1.1.1Schematic Diagram of Unit Control
Main board of master outdoor unit
Inverter drive control
system
Electronic
expansion
valve
Temp
eratur
e
senso
r
High
voltage
switch
Relay
output
Curr
ent
trans
form
er
Main board of indoor
unit N
Wir
ed
con
troll
er
Main board of indoor
unit
Wir
ed
con
troll
er
Hydro box
Wir
ed
con
troll
er
Hydro box
Wir
ed
con
troll
er
CAN network (2-core
communication wire, 4-core
socket)
Indoor section (indoor air conditioner, external-coiled water tank, hydro box)(64
sets can be connected in maximum)
GMV5 Home System includes one outdoor unit and 64 indoor units (indoor air conditioner,
external-coiled water tank and hydro box). Up to 6 external-coiled water tanks and hydro boxes
can be connected. Communication between indoor units and outdoor unit is connected by CAN
network 2-core (4-core needle stand) communication wire. It adopts non-polar auto addressing
method to realize communication, no need of setting address manually. During engineering
installation, it is necessary to set up outdoor unit main board DIP switch correctly to define the
special application functions. Below are the definitions:

Gree SXVD300LCJ2/A-K Specifications

General

Brand	Gree
Model	SXVD300LCJ2/A-K
Category	Inverter
Language	English