Auto Commissioning & Management System & Amount of Refrigerant Check Function
5
) M
a
in EEV
Ŷ
T
hings
to
Check:
M
ain
EE
V
of
o
u
tdoor
u
nit.
(
on
l
y
when
the
operating
mode
of
a
u
tomated
test
operation
is
set
to
"
heating
"
)
Ŷ
E
rror
Code:
None
(
showing
"
Check
Req
u
ired
"
on
the
res
ul
t
report).
Ŷ
Determine
the
main
EE
V
operation
stat
u
s
of
each
o
u
tdoor
u
nit.
Ŷ
When
needing
to
check
the
main
EE
V
of
o
u
tdoor
u
nit
,
p
l
ease
check
in
the
fo
ll
owing
order.
Is the main EEV connector
connected properly
?
Is the main EEV coil normal
?
(Resistance, disconnection,
disabled, etc.)
Is the output signal of PC
B
normal
?
Check valve and pressure sensor
Check and Take Action
Replace coil
Replace main PC
B
Replace main EEV
Finish
Upon running
the Auto Commissioning &
M
anagement
System, are the valve and pressure
sensor normal
?
* Standard Resistance Values of
M
ain EEV Coil (
M
easured at 20
℃
)
Operating
Voltage
(VDC)
Phase-to-phase
resistance
(Ω)
