– 165 –
No
No
*1: FT9 : 208/230 V±10%
FT6 : 460V ±10%
No
No
No
No
No
[H02]
Compressor error (Lock)
MG-CTT: Magnet contactor
1. Outdoor unit power line error
2. Compressor circuit system error
3. Compressor error
4. Refrigerant stagnation in compressor shell
5. A3-IPDU P.C. board error
6. MG-CTT error
Sub-code:
01: Compressor 1,
02: Compressor 2,
03: Compressor 3
Is
power voltage
of outdoor unit
normal? *1
Does
voltage drop occur
when other compressor
starts?
Is
wiring or
connectorconnection on
A3-IPDU P.C. board
normal?
Is MG-CTT normal? *2
Is
there no
refrigerant stagnation
in compressor shell?
Is compressor
normal? *3
Is case heater output
normal?
Correct power line.
Correct connector connection
or wiring.
Exchange MG-CTT
No
Abnormal overload?
Correct cause of overload.
Correct refrigerant stagnation
in compressor shell.
Operation starts.
Check case heater.
Compressor error
Check A3-IPDU P.C. board.
*3 Check the following items mainly.
1. Existence of abnormal sound and abnormal
vibration during operation or starting
2. Abnormal overheat of case during operation or
stop time (Never touch with hands.)
3. Current of compressor lead during operation or
starting time (No sudden change of current?)
*2 Check connection wiring
Check operation of MG-CTT
Check the short circuit of MG-CTT
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
[H03]
Current detective circuit system
error
1. Wiring or connector connection error on
A3-IPDU P.C. board
2. A3-IPDU P.C. board error
Sub-code:
01: Compressor 1,
02: Compressor 2,
03: Compressor 3
Wiring
or connector
connection on IPDU P.C.
boardnormal?
Correct connector connection
or wiring.
Check IPDU P.C. board.
Check code
Cause
Check code name
Check code
Cause
Check code name
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...