Gree GMV5 Series Service Manual page 110
Dc inverter vrf units
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Also See for GMV5 Series:
- Service manual (424 pages) ,
- Manual (153 pages) ,
- Owner's manual (40 pages)
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GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
db
06_Internal
component
db
detection for
basic
modules
db
07_Compon
ent detection
for IDU
db
db
db
08_Compres
sor
preheating
confirmation
db
09_Pre-start
db
up refrigerant
detection
db
db
10_Pre-start
up ODU
valve status
db
detection
db
11_Manually
calculated
refrigerant
perfusion
status
db
12_Unit
commissioni
db
ng startup
confirmation
db
On
05
On
On
06
On
On
06
On
On
07
On
On
07
On
On
08
On
On
08
On
On
09
On
On
09
On
On
10
On
On
10
On
On
10
On
On
11
On
On
12
On
On
12
On
OC
On
Corresponding
fault code
On
OC
On
XXXX/
Corresponding
fault code
On
OC
On
U0
On
OC
On
U4
On
OC
On
ON
On
U6
On
OC
On
AE
On
AP
Blinking
AE
On
107
IDUs and ODUs.
The system completes
detection and
automatically enters the
next step.
The system detects
component failure of
ODU.
The system detects that
no ODU component fails
and automatically enters
the next step.
The system detects
component failure of
IDU. "XXXX" indicates
the project number of the
faulty IDU. The
corresponding fault code
is displayed after three
seconds. For example, if
a d5 fault occurs on IDU
100, LED3 will circularly
display "01", "00" (two
seconds later), and "d5"
(two seconds later).
The system detects that
no IDU component fails
and automatically enters
the next step.
The system gives a
prompt if the compressor
preheating period is less
than eight hours.
The system detects that
the compressor
preheating period is
more than eight hours
and automatically enters
the next step.
The system detects
insufficient refrigerants
and stops to balance the
pressure lower than 0.3
MPa.
The system detects that
refrigerants are normal
and automatically enters
the next step.
Outdoor unit valves are
being opened.
Outdoor unit valves have
not been completely
opened.
Outdoor unit valves have
been properly opened.
The refrigerant perfusion
status is manually
calculated (appended
refrigerants must be
accurately calculated).
The system waits for a
unit commissioning
startup command.
The unit is set to
manually-calculated
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