– 219 –
Ye
s
No
Ye
s
No
Ye
s
No
No
No
Ye
s
No
Ye
s
[P19]
Sub-code: Detected outdoor unit No.
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
4-way valve reverse error
1.
4-way valve error
2.
TS1 sensor/TE1 sensor error
3.
Pd sensor/Ps sensor error
4.
TE sensor/TL
sensor misconnection
Is 4-way valve
coil connector
connected?
Are output voltage
characteristics of Pd and
Ps sensors normal?
Are
characteristics of
resistance value of
TS1,
TE1 and
TL
sensors
normal?
Are TS1, TE1
and TL
sensor
connectors connected
normally?
Does
discharge refrigerant
gas bypass to suction
side through 4-way
valve? *1
Does 4-way valve
operate?
Correct connector connection.
(4-way valve coil: CN317)
Sensor error
Sensor error
Correct connector connection
TS1 sensor: CN505
TE1 sensor: CN520
TL
sensor: CN523
If no error occurs in the test
operation, restart operation.
.
e
vl
a
v
y
a
w-
4
k
c
e
h
C
r
or
r
e
e
vl
a
v
y
a
w-
4
Reset the power supply and
start heating test operation.
*1 Check
TS1 and
TE1 temperature of the outdoor unit which is running.
(I/F) SW01=[1], SW02=[6], SW03=[2]
TS sensor temperature
SW01=[1], SW02=[7], SW03=[2]
TE sensor temperature
<Judgment criteria>
TE1 sensor: Normal if
TE1 is 30°C or less in the seasons except
summer (Outside temp 20°C or lower)
TS1 sensor: Normal if
TS is 50°C or less in the seasons except
summer (Outside temp 20°C or lower)
Ye
s
No
Ye
s
Ye
s
No
Ye
s
No
No
No
Ye
s
Ye
s
No
[P18]
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
Discharge temp
TD3 error
1.
Outdoor unit service valve closed
2. Outdoor
PMV
error
3. TD
sensor
error
4.
Refrigerant shortage, clogging of refrigerant circuit
5.
4-way valve error
6.
SV4 circuit leakage, misinstallation
Are service
valves of gas and
liquid sides fully
opened?
Are indoor units of a
dif
ferent refrigerant line
connected?
Does
discharge refrigerant
gas bypass to suction
side through 4-way
valve?
Are
characteristics of
TD3
sensor resistance
normal?
Connectors: PMV1: CN300,
PMV2: CN301, PMV4: CN303
(Check it using the miswiring check
function of the outdoor unit.)
(Check there is no pipe breakage, and
then recharge the refrigerant.)
Open service valves fully
.
Repair outdoor PMV
.
Replace TD3
sensor
.
Check 4-way valve.
Correct installation of valve
coil.
Replace SV43 valve.
Correct wiring
Refrigerant shortage,
clogging, pipe breakage
Is outdoor PMV normal?
1. Connector connection
2. Wiring
3. Coil
4. V
alve body
5. Outdoor I/F P
.C. board
SV4 circuit
1.
Are SV41, SV42 and SV43
valve coils installed correctly?
2. Is SV42 circuit sealed
correctly (no leakage)?
* Se
e “
O
u
tdo
or
un
it te
mp
erat
ur
e se
nso
r
ch
aract
eristics”
on
“
8
-9. S
e
n
sor Cha
ra
cte
ristics”.
* See
“
O
u
tdo
or
un
it
te
mp
er
at
ure se
nso
r
ch
aract
eristics”
on
“
8
-9. S
e
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sor Cha
ra
cte
ristics”.
Summary of Contents for MMY-MAP0804HT7JP
Page 23: ... 22 1 Wiring Diagrams 1 1 Outdoor Unit Models MMY MAP0804 MAP1004 and MAP1204 ...
Page 24: ... 23 Models MMY MAP1404 and MAP1604 ...
Page 35: ... 34 1 2 10 Slim Duct Type AP024 AP027 Models MMD AP0244SPH MMD AP0274SPH ...
Page 38: ... 37 1 2 13 High Wall Type 3 series Models MMK AP0073H AP0093H AP0123H AP0153H AP0183H AP0243H ...
Page 52: ... 51 2 5 Parts Layout in Outdoor Unit 8 10 12HP Model MMY MAP0804 MAP1004 MAP1204 ...
Page 53: ... 52 14 16HP Model MMY MAP1404 MAP1604 ...
Page 57: ... 56 2 7 2 Inverter P C board for compressor MCC 1596 A3 IPDU ...
Page 323: ......