Gree HOME GMV [55/367] Control

Gree HOME GMV [55/367] Control
Dc Inverter VRF plus Water Heater Solution Service Manual CONTROL
51
CONTROL
1 CONTROL OF THE UNIT
1.1 Integral Control of the Unit
1 Schematic Diagram of Control of the Units
Control mainboard of outdoor unit (include drive system)
Am
bie
nt
tem
p
sen
sor
Pi
pe
inl
et
te
m
p
se
ns
or
Te
mp
sen
sor
insi
de
pip
e
Pip
e
outl
et
tem
p
sen
sor
Dis
cha
rge
tem
p
sen
sor
Hig
h
pre
ssu
re
tem
p
sen
sor
Lo
w
pre
ssu
re
tem
p
sen
sor
C
ap
ju
m
pe
r
Hig
h
pre
ssu
re
swi
tch
Input control
Output control
PFC
Inductance
Ele
ctric
exp
ansi
on
valv
e A
Ele
ctric
exp
ansi
on
valv
e B
4-
way
valv
e A
4-
way
valv
e B
Ele
ctric
hea
ter
of
co
mpr
ess
or
Ele
ctro
ma
gne
tic
valv
e B
By-
pas
s
gas
valv
e
DC
mot
or 1
DC
mot
or 2
Co
mpr
ess
or
485
communi
cation
485
communi
cation
Hydro-box
Filter plate of power
supply
power
cord
Power
supply
Indoor unit
Wa
ter
pu
mp
Ele
ctric
hea
ting
Wa
ter-
in
tem
p
sen
sor
Wa
ter-
out
tem
p
sen
sor
Up
per
tem
p
sen
sor
Lo
wer
tem
p
sen
sor
The units consists of indoor unit,hydro-box and outdoor unit. One outdoor unit can maximum connect 16 sets
indoor units and one hydro-box. They are connected with each other by communication wire with 2 pin ( 3-pin
needle stand).The connections between indoor unit and display panel and between mainboard and hydro-box are
by 4-pin communication wire. Address codes of display and mainboard of indoor unit should be set during
engineering installation,which shall be the same for the same indoor unit.But the address codes of different units
can’t be the same. Mainboard of hydro-box and display panel don’t need the address code. The indoor unit of VRF
units are applicable to all digital and inverter outdoor units
Control device of the outdoor unit consists of two parts as viewed from function which are master control
system and inverter-drive control system. They are in a same control panel.
Nixie tube

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