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– 175 –
(A)
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
No
No
No
No
No
Ye
s
No
No
No
[P04]
Chec
k code
Cause
Chec
k code name
Error concer
ning high-pressure
SW
1.
High-pressure SW error
, 2.
Ser
vice v
alv
e closed
3.
Pd sensor error
, 4.
Indoor/outdoor f
an error
5.
Indoor/outdoor PMV chok
e
6.
Indoor/outdoor heat e
xchanger clogging, air
shor
t circuit, 7.
SV2 circuit error
8.
SV4 circuit error
,
9
. SV5 circuit error
10.
Discharge line chec
k v
alv
e malfunction
11.
Refr
iger
ant o
v
ercharge
Sub-code:
01:
Compressor 1, 02:
Compressor 2, 03:
Compressor 3
Note) High-pressure SW is
nor
mally closed.
(B contact)
Does high-pressure SW
oper
ate?
Are par
ts
of highpressure SW
nor
mal?
Is ser
vice v
alv
e fully
opened?
Are
char
acter
istics of
high-pressure sensor
nor
mal?
Does cooling outdoor
fa
n nor
mally oper
ate?
Is there an
y
interf
erence of hea-
te
xchanging of outdoor unit?
1.
Heat e
xchanger clogging
2.
Air shor
t circuit
Is there an
y cr
ac
k or
coming-off of f
an?
Connector connection, f
a
n
IPDU
, f
an motor
, wir
ing
Connectors:
PMV1:
CN300,
PMV2:
CN301, PMV4:
CN303
Chec
k par
ts
.
F
a
ilure
→
Replace
Open ser
vice v
a
lv
e
fully
.
Replace the highpressure
sensor
.
Repair f
aulty par
ts
.
Repair outdoor PMV
.
Eliminate the
interf
erence
.
Chec
k A3-IPDU P
.C
. board.
F
a
ilure
→
replace
(B) All cooling oper
ation
All cooling
→
T
o
(B)
All heating
→
T
o
(C)
Reset po
w
er supply
, and star
t a test
oper
ation corresponded to the season.
Is outdoor PMV nor
mal?
1.
Connector connection
2.
Cab
ling, 3.
Coil
4.
V
a
lv
e
body
5.
Outdoor I/F P
.C
. board
ABNORMAL
ABNORMAL
ABNORMAL
NORMAL
NORMAL
NORMAL
Ye
s
No
Is circuit cab
ling
nor
mal?
Chec
k and correct
cab
ling.
Is
Cooling/Heating FS
unit nor
mal?
Repair Cooling/Heating
FS unit.
Chec
k
incorrect piping of discharge
gas/suction gas
main piping.
Correct piping to nor
mal
piping.
Chec
k
PMV4, SV12 v
a
lv
e
oper
ation.
Replace def
ectiv
e par
ts
.
ABNORMAL
ABNORMAL
NORMAL
NORMAL
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
No
No
(C)
(A)
Is SV2 circuit nor
mal?
Is SV4 circuit nor
mal?
Does heating
indoor f
an nor
mally
oper
ate?
Are connector
connection, condenser
,
fa
n motor and f
a
n
nor
mal?
Is connector connection
and coil nor
mal?
Is there clogging
on an
y v
alv
e?
Are
char
acter
istics
of TC2
and TCJ
sensor
resistance v
alue
nor
mal?
Is indoor PMV
nor
mal?
(Chec
k it using the
mis
w
ir
ing chec
k function
of the outdoor unit.)
Are an
y indoor units
of diff
erent refr
iger
ant
line connected?
Is there
an
y interf
erence of
heate
xchanging of indoor unit?
1.
Filter clogging
2.
Heat e
xchanger clogging
3.
Air shor
t circuit
Repair SV2 circuit.
Repair SV4 circuit.
(Coil error
, clogging,
disconnection of
wir
ing, etc.)
Repair f
aulty par
ts
.
Repair f
aulty par
ts
.
Eliminate the
interf
erence
.
Chec
k and correct the
wir
ing.
Replace TC2
and/or
TCJ sensor
.
Refr
iger
ant o
v
ercharge
,
clogging, pipe
breakage
, abnor
mal
o
v
er
load condition
Chec
k indoor P
.C
. board.
F
a
ilure
→
Replace
All heating oper
ation
Refr
iger
ant
ov
ercharge
, clogging,
pipe breakage
,
abnor
mal o
ver
load
condition
Coil error
, clogging,
disconnection of wir
ing, etc.
Repair f
aulty par
ts
.
Replace 4-w
a
y v
alv
e
.
Replace def
ectiv
e par
ts
.
Chec
k
4-w
a
y v
alv
e oper
ation.
Chec
k
SV11 circuit clogging.
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...