State of Machine
Cause
Chec
k point
Content of confir
mation
4)
The control pr
inting wir
ing board setting
is def
ectiv
e
.
3) Connected mistak
e
3) Connected mistak
e
2) Output wir
ing supply re
v
erse-phase
.
1) P
o
w
er supply re
v
erse-phase
.
2) P
o
w
er supply re
v
erse-phase
.
Output wir
ing re
v
erse-phase
.
The phase of f
an motor output wir
ing is
confir
med.
(TB OUT)
The phase of f
an motor output wir
ing is
confir
med.
(TB OUT)
The phase of input v
oltage is confir
med
.
(TB IN)
The phase of input v
oltage is confir
med
.
(TB IN)
The set of dip s
witch is confir
med.
(SW0-3)
(P2)
It is confir
med that the s
witch setting is
corresponding to the electr
ic wir
ing diag
ram.
The control substr
ate is matched to setting the
electr
ic wir
ing diag
ram.
The f
an controller connection is confir
med.
The f
an controller connection is confir
med.
The input v
oltage is confir
med.
(CN04)
Is the phase of U
,
V
,
W correct?
Is the phase of L1, L2, L3 correct?
Is the phase of U
,
V
,
W correct?
Is the phase of L1, L2, L3 correct?
T
roub
leshooting
The phase of U
,
V
,
W is corrected.
The connected phase is confir
med.
The wir
ing mistak
e is corrected.
The phase of L1, L2,L3 is corrected.
The phase of U
,
V
,
W is corrected.
The phase of L1, L2,L3 is corrected.
NF-SCRM-TB OUT (The connection phase
is noted.)
CNU
, CNV
, CNW
-SCRM
(The connection is noted.)
Is not A
C198-264V input in CN04?
TB IN-NF wir
ing (The connection phase is noted.)
12
2.
The f
an rotates
oppositely
.
3.
The rotation speed
of f
ans cannot control.
Something wrong
occurs b
y step2-2 dr
iv
e
confir
mation of installed
confir
mation matter
.
It becomes high-
pressure abnor
mal
pressure
.
1) Dur
ing heating dr
iv
e
Dur
ing heating dr
iv
e
, there is an input in CN04 and
the f
an becomes full load dr
iv
e
. Nor
mality
CN04- the wir
ing f
or full load input in heating
(CN04 input is A
C198-264V in heating.)
There m
ust not be connector connection in
CNX.
(CNX is compulsion full load input.
Full load when shor
t-circuited.)
NF-SCRM-TB OUT
(The connection phase is
noted.)
CNU
, CNV
, CNW
-SCRM
(The connection is noted.)
TB IN-NF wir
ing (The connection phase is
noted.)
TB IN-T01-CN02 (The connection phase is
noted.)
CN02- ther
mistor
The connected phase is confir
med.
The wir
ing mistak
e is corrected.
In cooling, when there is an input in CN04, wir
ing
of CN04 is mistak
e connection.
The wir
ing is corrected.
When there is an input in CN04, the f
an is full load..
When there is a connector connection in CNX,
it is remo
v
ed.
The unit side connection is confir
med.
The connected phase is confir
med.
The wir
ing mistak
e is corrected.
TB OUT - f
an motor
(The phase (U
,
V
,
W) is noted.)
P
osition of the wir
ing f
or full load input
(In heating)
Installation position of ther
mistor
If the position where the ther
mistor is installed is
wrong, the rotation speed control of the f
an as
condensing temper
ature is impossib
le
.
5)
The th
yr
istor module
(SCRM)
is def
ectiv
e
.
The content of P14 is chec
k
ed.
(SCRM)
The content of P14 is judgment.
(SCRM)
SCRM e
xchange when abnor
mality is f
ound.
