– 179 –
No
No
No
No
No
No
No
No
No
No
[P17]
Chec
k code
Cause
Chec
k code name
Discharge temp
TD2 error
1.
Outdoor unit ser
vice v
alv
e closed
2.
Outdoor PMV error
, 3.
TD sensor error
4.
Refr
iger
ant shor
tage
, clogging of refr
iger
ant circuit
5.
4-w
a
y
v
a
lv
e error
, 6.
SV4 circuit leakage
, misinstallation
7.
SV5 circuit leakage
8.
SV6 circuit clogging
9
. Incorrect piping of discharge gas / suction gas pipes
10.
Cooling/Heating FS unit error
Are
ser
vice v
alv
es
of gas and liquid sides
fully
opened?
Open ser
vice v
alv
es fully
.
Repair outdoor PMV
.
Replace TD2
sensor
.
Chec
k 4-w
a
y
v
alv
e
.
Correct installation of
v
a
lv
e coil.
Replace SV42 v
alv
e
.
Correct wir
ing
Refr
iger
ant shor
tage
,
clogging, pipe breakage
Are indoor units of a
diff
erent refr
iger
ant line
connected?
Are
char
acter
istics
of TD2
sensor
resistance
nor
mal?
Does
discharge
refr
iger
ant gas b
ypass to
suction side through
4-w
a
y
va
lv
e
?
Connectors:
PMV1:
CN300,
PMV2:
CN301, PMV4:
CN303
(Chec
k it using the mis
wir
ing chec
k
function of the outdoor unit.)
(Chec
k there is no pipe breakage
, and
then recharge the refr
iger
ant.)
Is outdoor PMV nor
mal?
1.
Connector connection
2.
Wir
ing
3.
Coil
4.
V
a
lv
e
body
5.
Outdoor I/F P
.C
. board
SV4 circuit
1.
Are SV41, SV42 and SV43
va
lv
e coils installed correctly?
2.
Is SV42 circuit sealed
correctly (no leakage)?
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
* See "Outdoor unit temper
ature sensor
char
acter
istics" on "
9
-9
. Sensor Char
acter
istics".
Replace def
ectiv
e par
ts
.
SV5
circuit leakage chec
k
Replace def
ectiv
e par
ts
.
SV6
circuit clogging chec
k
Correct piping to nor
mal
piping.
Chec
k
incorrect piping of discharge
gas/suction gas
main pipes
Repair Cooling/Heating
FS unit.
Is
Cooling/Heating FS
unit nor
mal?
[P17]
Chec
k code
Cause
Chec
k code name
Discharge temper
ature
TD3 error
1.
Outdoor unit ser
vice v
a
lv
e closed
2.
Outdoor PMV1, 2 error
3.
TD sensor error
4.
Refr
iger
a
nt shor
tage
, clogging inside of pipe
5.
4-w
a
y v
a
lv
e error
6.
SV4 circuit leakage
, misinstallation
7.
SV5 circuit clogging
8.
SV6 circuit clogging
9
. Incorrect piping of discharge gas/suction gas pipe
10.
Cooling/Heating FS unit error
Are
ser
vice v
a
lv
es of outdoor
unit discharge gas pipe
, suction
gas pipe
, liquid pipe
fully opened?
Are
outdoor PMV
, 1.
Connector connection
2.
Wir
ing, 3.
Coil, 4.
V
a
lv
e body
,
5.
Outdoor P
.C
. board nor
mal?
Is
resistance char
acter
istics
of TD3
sensor
nor
mal?
W
a
sn't
discharge gas b
y
pass to
suction side b
y
4-w
a
y v
a
lv
e?
SV5
circuit leakage
chec
k
SV6
circuit clogging
chec
k
Chec
k
incorrect piping of discharge
gas/suction gas
main pipes
.
Is
Cooling/Heating
FS unit
nor
mal?
Isn't
an indoor unit of diff
erent
refr
iger
ant line
connected?
∗
Connectors:
PMV1:
CN300
PMV2:
CN301
PMV4:
CN303
No
No
No
No
No
No
No
No
No
No
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Open ser
vice v
alv
es fully
.
Repair outdoor PMV
.
Replace TD3
sensor
.
4-w
a
y
v
alv
e chec
k
Correct instllation of v
alv
e coil.
Replace SV43 v
alv
e
.
Replace def
ectiv
e par
ts
.
Replace def
ectiv
e par
ts
.
Correct piping as standard.
Repair Cooling/Heating
FS unit
Correct wir
ing as standard.
* See "Outdoor unit temper
ature sensor
char
acter
istics" on "
9
-9
. Sensor Char
acter
istics".
The
y are refr
iger
ant shor
tage
,
clogging and pipe breakage
.
(That is
, confir
m there is no pipe breakage
and then recharge refr
iger
ant.)
SV4 circuit
1.
Are SV41, SV42 and SV43
va
lv
e coils installed correctly?
2.
Is SV42 circuit sealed
correctly (no leakage)?
Summary of Contents for MMY-MAP0724FT6UL
Page 35: ...35 3 5 Parts Layout in Outdoor Unit 072 type Model MMY MAP0724FT...
Page 36: ...36 096 120 type Model MMY MAP0964FT MAP1204FT...
Page 37: ...37 3 6 Parts Layout in Inverter Assembly 208 230V model MMY MAP0724FT9UL...
Page 38: ...38 208 230V model MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 39: ...39 460V model MMY MAP0724FT6UL...
Page 40: ...40 460V model MMY MAP0964FT6UL MMY MAP1204FT6UL...
Page 41: ...41 3 7 Outdoor Inverter print circuit board 3 7 1 Interface P C board MCC 1606...
Page 42: ...42 3 7 2 Inverter P C board for compressor MCC 1595 A3 IPDU For 208 230V model MMY MAP 4FT9UL...
Page 43: ...43 3 7 3 Inverter P C board for compressor MCC 1596 A3 IPDU For 460V model MMY MAP 4FT6UL...
Page 44: ...44 3 7 4 Inverter P C board for fan motor MCC 1610 FAN IPDU...
Page 45: ...45 3 7 5 Noise Filter P C board MCC 1608 A B For 208 230V model MMY MAP 4FT9UL...
Page 46: ...46 3 7 6 Noise Filter P C board MCC 1625 A B C For 460V model MMY MAP 4FT6UL...
Page 195: ...195...
Page 197: ...197...
Page 257: ...257 15 EXPLODED DIAGRAM PARTS LIST Outdoor unit 15 1 MMY MAP0724FT9UL...
Page 258: ...258 15 1 MMY MAP0724FT9UL...
Page 262: ...262 15 1 Inverter Assembly MMY MAP0724FT9UL...
Page 264: ...264 15 2 MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 265: ...265 15 2 MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 269: ...269 15 2 Inverter Assembly MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 271: ...271 15 3 MMY MAP0724FT6UL...
Page 272: ...272 15 3 MMY MAP0724FT6UL...
Page 276: ...276 15 3 Inverter Assembly MMY MAP0724FT6UL...
Page 278: ...278 15 4 MMY MAP0964FT6UL MMY MAP1204FT6UL...
Page 279: ...279 15 4 MMY MAP0964FT6UL MMY MAP1204FT6UL...
Page 283: ...283 15 4 Inverter Assembly MMY MAP0964FT6UL MMY MAP1204FT6UL...