Toshiba MMY-MAP0804HT7JP, Руководство по обслуживанию

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Ye
s
s
e
Y
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e
Y
o
N
o
N
No
Ye
s
No
[F23]
Connector: CN500, White
[F24]
Ye
s
No No
Ye
s
No
Ye
s
[F16]
[F22]
e
s
u
a
C
e
d
o
c
k
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e
h
C
Check code name
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a
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d
o
c
k
c
e
h
C
Check code name
e
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Check code name
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Check code name
Outdoor pressure sensor miswiring (Pd, Ps)
1.
High-pressure Pd sensor and low pressure sensor Ps are exchanged.
2.
Output voltage of each sensor is zero.
Ps sensor error
Output voltage error of Ps sensor
Pd sensor error
Output voltage error of Pd sensor
TD3 sensor error
TD3 sensor Open/Short
Are connection of Pd sensor and Ps
sensor connectors
correct?
Is connection of Ps
sensor connector
correct?
Are output
voltage characteristics
of Ps sensor
normal?
Is there no leakage
from SV4 valve?
Is not
refrigerant bypassed from
discharge to suction of
4-way valve?
Are output
voltage characteristics
of Pd sensor and Ps
sensor normal?
Are Pd/Ps
output values Pd>Ps during
compressor
operation?
Correct connection of connectors. Pd sensor: CN501, Red Ps sensor: CN500, White
Correct connection of connector
.
Sensor error
Replace
Sensor error
Replace
Check compressor
.
.
e
vl
a
v
y
a
w-
4
k
c
e
h
C
.
e
vl
a
v
4
V
S
e
c
al
p
e
R
Check compressor
.
Check outdoor I/F P
.C. board.
Defect
Replace
(1) Pressure (Check joint) by pressure gauge (2) Pressure display on 7-segment display (3) Output voltage of I/F P
.C. board
If (1) and (2), (3) are dif
ferent, an error of pressure
sensor itself is considered. If (2) and (3) are dif
ferent, check interface P
.C. board.
(1) Pressure (Check joint) by pressure gauge (2) Pressure display on 7-segment display (3) Output voltage of I/F P
.C. board
If (1) and (2), (3) are dif
ferent, an error of pressure
sensor itself is considered. If (2) and (3) are dif
ferent, check interface P
.C. board.
V
alue can be confirmed by 7-segment
display function on outdoor I/F P
.C. board.
Pd SW01/02/03=1/1/2 Ps SW01/02/03=1/2/2
It is output voltage error of Pd sensor
. Check disconnection of connection of connector (Pd sensor: CN501, red)
circuit and output voltage of sensor
.
If the sensor is normal, replace outdoor I/F P
.C. board.
This error co
de
mean
s de
te
ction
of
Ope
n/S
hort
of TD3
sensor. Ch
eck d
isconn
ect
io
n o
f circuit
for co
nne
ction
of
con
nect
or
(TD3 sen
sor: CN5
04,
b
lu
e
) and
ch
aract
e
ri
stics
o
f
se
nso
r r
e
sista
n
ce valu
e. (See
“Ou
tdo
or
u
n
it temp
e
ratu
re
sen
sor cha
racte
ri
stics” o
n
“8-9
. Se
nso
r
C
h
aract
eristics”
.)
If se
nso
r
is
nor
m
al,
re
place
ou
td
oor
I
/F P.C
. bo
ard.