– 199 –
SVSS
v
alv
e
Discharge
.
Liquid
b
ypass
capillar
y,
Chec
k
v
alv
e
Clogging
Leakage
O
All cooling
Mainly cooling (Indoor cooling)
Mainly heating (Indoor cooling)
• Oper
ation is changed from heating to cooling.
z
Indoor unit,
flo
w selector unit
Chec
k v
alv
e
Capillar
y
clogging
O
Comm
ucation
line
Po
w
e
r
supply line
Disconnection
Contact error
Mis
w
ir
ing
In some cases
, phenomena such as abo
v
e
occur
.
All cooling (SV11 ON)
Mainly cooling (Indoor cooling)
Mainly heating (Indoor cooling)
O
All heating
Mainly cooling (Indoor heating)
Mainly heating (Indoor heating)
• Gas shor
t is obser
v
ed and PD and PS ma
y be lo
w
er than those
in nor
mal time
.
•
TD and
TS ma
y be higher than those in nor
mal time
.
All cooling (SV11 ON)
Mainly cooling (Indoor cooling)
Mainly heating (Indoor cooling)
•
TCJ and
TC1 are heated same as heating.
(Heating circuit)
• Suction gas pipe at outdoor side of selector unit is f
air
ly heated.
D
O
All heating
Mainly cooling (Indoor heating)
Mainly heating (Indoor heating)
• Refr
iger
ant i mpact sound is heard at defrost time
.
z
Indoor unit,
flo
w selector unit
OO
SVSS circuit
All heating
Mainly cooling (Indoor heating)
Mainly heating (Indoor heating)
• Refr
iger
ant sound ma
y be heard from SVSS v
alv
e circuit.
•
T
e
mper
ature of suction gas pipe at outdoor side of the selector
unit is higher than that of nor
mal selector unit.
All cooling (SV11 OFF)
O
Chec
k v
alv
e
leakage
• Refr
iger
ant sound ma
y be heard from chec
k v
alv
e
.
• Discharge gas pipe is cold or it ma
y be froz
en.
O
Chec
k v
alv
e
circuit
P15
[Gas leak
detection]
Piping
Discharge
pipe Liquid
pipe
Gas pipe
Incorrect
piping
Discharge
pipe
↔
Suction gas
pipe
All cooling (SV11 OFF)
O
• Impossib
le judgment
All heating
Mainly cooling (Indoor heating)
Mainly heating (Indoor heating)
O
O
•
T
e
mper
ature of suction gas pipe at outdoor side of the FS unit is
higher than that of the nor
mal FS unit.
P
a
rt
name
O
z
T
roub
le
mode
Operation mode
Phenomenon whic
h appear
s as result
(Corresponding indoor unit or flo
w selector unit)
J
udgment and position to be c
hec
ked
Example of
refrig
erant
flo
w
Not
cooled
Not
heated
Ma
y become
almost normal
capacity
Abnormal
refrig
erant sound
Cir
c
ulating
sound
Detection of
c
h
ec
k code
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...