Auto Commissioning & Management System & Amount of Refrigerant Check Function
3
) Op
erat
i
o
n
al
P
ro
b
lem
o
f
Com
p
ressor
Ŷ
T
hings
to
Check:
Operationa
l
c
u
rrent
of
o
u
tdoor
u
nit
compressor
Ŷ
E
rror
Code:
None
(
showing
"
Check
Req
u
ired
"
on
the
res
ul
t
report)
Ŷ
Determine
the
operationa
l
c
u
rrent
of
o
u
tdoor
u
nit
compressor.
Ŷ
When
needing
to
check
the
operationa
l
c
u
rrent
of
o
u
tdoor
u
nit
compressor
,
p
l
ease
check
in
the
fo
ll
owing
order.
No
Is the
power supply and power
connection of outdoor unit
normal
?
Check and Take Action
Replace inverter PC
B
Replace inverter PC
B
Adjust the refrigerant level (add/remove).
Is the operating
current of compressor
normal
?
Replace compressor
Finish
Is the system
refrigerant level
appropriate
?
Does
the system read the compressor
current (CT) value of
'
0
'
in the stop state
of outdoor unit
?
Is the
value of phase-to-phase
resistance normal
?
Run the Auto Commissioning &
M
anagement System again after installing
an ammeter.
Is the measurement
result of compressor current identical
to the CT sensor value
?
Is the value of
compressor current (CT)
normal
?
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
