Gree DC Inverter Multi VRF

DC INVERTER MULTI VRF MAINTENANCE
2.11 Tripping
Tripping
Tripped once
energized
The system is
abnormal. Please
check the compresso
r
connections or winding
for short circuiting o
r
other troubles.
Record and
feed back
Replace
the
Mainboard.
If the switching
capacity can
meet the
requirements?
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Check if it is
leakage and
the switch
changed,
Yes
Check if the
PFC module in
the mainboard
is short
circuiting.
Please mount the
electric switches
according to the
capacity specified in
the instruction.
In case the
leakage flow is
too big, find out
the leakage point
and handle it.
Check if the
relay K8 in
mainboard is
connected.
Check if the
IPM module in
the mainboard
is short
circuiting.
Check the
wiring
diagram.
Change the
mainboard if the
relay is
damaged.
Change the
mainboard, and
check if the AC
contactors are
blocking, and
ensure no short
circuiting
between P-N.