Toshiba SMMS-u MMY-MUP0801HT8 User manual

File No. A1C-2101
< Super Modular Multi System-u>
MMY-MUP0801HT8
MMY-MUP1001HT8
MMY-MUP1201HT8
MMY-MUP1401HT8
MMY-MUP14A1HT8
MMY-MUP1601HT8
MMY-MUP1801HT8
MMY-MUP2001HT8
MMY-MUP2201HT8
MMY-MUP2401HT8
-u

– 2 –
CONTENTS
1. Indoor unit that can be connectted to Outdoor unit (SMMS-u) ........................... 3
2. Main Parts List ......................................................................................................... 4
2-1. Outdoor Unit (MMY-MUP***1HT8) ...................................................................................... 4
2-2. Inverter Assembly................................................................................................................ 6
3. Wiring Diagrams ...................................................................................................... 7
3-1. Parts Layout in Outdoor Unit ............................................................................................. 8
3-2. Parts Layout in Inverter Assembly................................................................................... 11
3-3. Outdoor (Inverter) Print Circuit Board ............................................................................. 14
4. REFRIGERANT PIPING SCHEMATIC DRAWING ................................................. 18
5. Method to set Outdoor Unit Function Code No. (O.DN ) .................................... 20
6. Troubleshooting in Test Operation....................................................................... 23
6-1. Troubleshooting method ................................................................................................... 26
6-2. Troubleshooting based Information ................................................................................ 28
6-3. Check Codes Displayed on Remote Controller and SMMS-u Outdoor Unit
(7-Segment Display on I/F Board) and Locations to Be Checked ................................ 35
7. Applied Control of Indoor Unit ............................................................................. 49
8. Applied Control for Outdoor Unit ......................................................................... 53
8-1. Outdoor Fan High Static Pressure Shift.......................................................................... 53
8-2. Priority Operation Mode Setting ...................................................................................... 54
8-3. Applied Control of Outdoor Unit ...................................................................................... 56
8-4. Notice Code ........................................................................................................................ 57
8-5. System Cooperation Defrosting....................................................................................... 59
9. APPLIED CONTROL AND FUNCTIONS ............................................................... 62
9-1. Optional Connector Specifications of Indoor P.C. Board .............................................. 62
9-2. Test Operation of Indoor Unit ........................................................................................... 64
9-3. Service Support Function ................................................................................................. 70
10. 7-Segment Display Function .............................................................................. 92
10-1. Display of System Information (Displayed on Header Outdoor Unit Only) ................ 92
10-2. Display of Outdoor Unit Information (Displayed on Each Outdoor Unit) ................... 93
10-3. Display of Outdoor Cycle Data (Displayed at Each Outdoor Unit) .............................. 94
10-4. Display of Outdoor Cycle Data (Displayed at Header Unit) .......................................... 95
10-5. Display of Indoor Unit Information (Displayed on Header Unit Only) ......................... 96
10-6. Display of Outdoor EEPROM Writing Check Code
(Displayed on Header Unit Only) ..................................................................................... 96
11. Oil Level Judgment Display ............................................................................... 97
12. SMMS-u Outdoor Interface P.C. Board Function Setting Change Table ......... 98
13. Sensor Characteristics ....................................................................................... 99
14. Pressure Sensor Output Check ....................................................................... 102
15. Check the additional amount of refrigerant. ................................................... 103
16. Wave Tool Advance for SMMS-u Series .......................................................... 106
16-1. Before the Use of Wave Tool Advance .......................................................................... 106
16-2. About Wave Tool Advance .............................................................................................. 106
16-3. Valid/Prohibition/Permission setting for Test operation from WTA App. .................. 106
16-4. Confirmation for NFC tag Communication .................................................................. 107
Appendex

– 3 –
1. Indoor unit that can be connectted to Outdoor unit
(SMMS-u)
This service manual provides relevant explanations about new outdoor unit (SMMS-u).
Please refer to the following service manuals for each indoor units.
Model name
Related Outdoor Unit
SVM File No.
MMU-UP***1HT8-C (Made in Japan model) A10-2003
MMU-UP***1HT8(J)P-E (Made in Thailand model) SVM-20113-2
Model name
Indoor Unit
SVM File No. Model name SVM File No.
<4-Way Cassette Type>
MMU-UP***1HP-E/-TR (Made in Thailand model)
MMU-UP***1H-E/-TR (Made in Japan model)
MMU-AP***4HP1-E/-TR (Made in Thailand model)
SVM-20095
A10-2004
SVM-16041
<Compact 4-Way Cassette Type>
MMU-UP***1MH-E/-TR (Made in Japan model)
MMU-AP***7MH-E/-TR (Made in Japan model)
A10-2004
A10-1615-1
<Concealed Duct Standard Type>
MMD-UP***1BHP-E/-TR (Made in Thailand model)
MMD-AP***6BHP1-E/-TR (Made in Thailand model)
MMD-AP***6BHP1-E1 (Made in Thailand model)
SVM-20095
SVM-16043
SVM-19065
<2-Way Cassette Type>
MMU-UP***1WH-E/-TR (Made in Japan model)
MMU-AP***2WH1/-TR (Made in Japan model)
A10-2004
A10-007
<1-Way Cassette Type>
MMU-UP***1SH-E/-TR (Made in Japan model)
MMU-UP***1YHP-E/-TR (Made in Thailand model)
MMU-AP***4YH1-E/-TR (Made in Japan model)
MMU-AP***4SH1-E/-TR (Made in Japan model)
A10-2004
SVM-20107
A10-033
A10-033
<Concealed Duct High Static Pressure Type>
MMD-UP***1HP-E/-TR (Made in Thailand model)
MMD-AP***6HP1-E/-TR (Made in Thailand model)
SVM-20095
SVM-16044
<Slim Duct Type>
MMD-UP***1SPHY-E (Made in China model)
MMD-AP***4SPH1-E/-TR (Made in Japan model)
MMD-AP***6SPH1-E/-TR (Made in Japan model)
A10-2006
A10-033
A10-033
<Under Ceiling Type>
MMC-UP***1HP-E/-TR (Made in Thailand model)
MMC-AP***8HP-E (Made in Thailand model)
SVM-20095
SVM-17015
<Floor Standing Cabinet Type>
MML-UP***1H-E/-TR (Made in Japan model)
MML-AP***4H1-E/-TR (Made in Japan model)
A10-2004
A10-033
<Floor Standing Concealed Type>
MML-UP***1BH-E/-TR (Made in Japan model)
MML-AP***4BH1-E/-TR (Made in Japan model)
A10-2004
A10-033
<Floor Standing Type>
MMF-UP***1H-E/-TR (Made in Japan model)
MMF-AP***6H1-E/-TR (Made in Japan model)
A10-2004
A10-1420
<Fresh Air Intake Indoor Unit>
MMD-UP***1HFP-E/-TR (Made in Thailand model)
MMD-AP***1HFE (Made in Japan model)
SVM-20095
A06-016
<Air to Air Heat Exchanger with DX Coil Unit>
MMD-VN***2HEX* (Made in Japan model) A10-022
<High Wall Type>
MMK-UP***1HP-E/-TR (Made in Thailand model)
MMK-UP***1HPL-E (Made in Thailand model)
MMK-AP***7HP-E (Made in Thailand model)
MMK-AP***7HP-E1 (Made in Thailand model)
SVM-20095
SVM-20095
SVM-17045
SVM-17046
<Console Type>
MML-UP***1NHP-E/-TR (Made in Thailand model)
MML-AP***4NH1-E/-TR (Made in Thailand model)
SVM-20095
SVM-16048
<Hot Water Module Mid Temperature Type>
MMW-UP***1LQ-E/-TR (Made in Japan model)
MMW-AP***1LQ-E/-TR (Made in Japan model)
A10-2005
A10-1412

– 4 –
2. Main Parts List
2-1. Outdoor Unit ( MMY-MUP***1HT8)
Note:
Service compressor should be select each model with different suction pipes.
No. Part name Model Specifications
1
1
1
2
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
9
10
10
11
12
12
13
14
14
15
15
15
16
17
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
2
2
1
1
2
1
1
1
1
1
1
1
1
1
1
2
1
1
1
2
2
1
1
2
Compressor
Compressor
Compressor
4-way valve
Ball valve
Pulse motor valve
Pulse motor valve
Pulse motor valve
Pulse motor valve coil
Pulse motor valve coil
Pulse motor valve coil
Packedvalve
Packedvalve
Packedvalve
2-way valve coil
2-way valve coil
2-way valve coil
Heatsink
Heatsink
Pressure sensor SW
Pressure sensor
Pressure sensor
Fan motor
Propeller Fan (PS741-T)
Propeller Fan (PF581-T)
4-way valve coil
2-way valve coil
2-way valve coil
Accumlator
Accumlator
Accumlator
Reactor
ASM-Screw-S
LA771A3TB-20M
LA1200K4FB-10UC
LA771A3TB-20M
SHF-35B-67-04
PAM-BA2YGTF-1
HAM-BD28TF-2
UKV-18D64
PAM-MD121TF-30
HAM-MD12TE-7
UKV-A376
FDF2A88
TEV-S1920DQ50
REF
REF
ACB-4UB237W
ICF-620A1000-1
SAN-GF20%
SAN-GF20%
AC220-240V
AC220-240V
AC220-240V 50Hz
24L
28L
28L
CH-105
M5, SUS410
1900cc, 452+22h
3000cc, 569+20h
Ø25.4
Ø4.8
Ø2.8
Ø1.8
100Ω
46Ω
46Ω
Ø12.7
Ø15.88
Ø19.05
Ø1.2
Ø1.9
3.2 On/4.15 Off
Ø741
Ø581
2085 Ω ± 10%
2085 Ω ± 10%
2163 Ω ± 7%
MMY-MUP0801HT8 MMY-MUP1001HT8 MMY-MUP1201HT8 MMY-MUP1401HT8
MMY-MUP14A1HT8
MMY-MUP1601HT8 MMY-MUP1801HT8 MMY-MUP2001HT8 MMY-MUP2201HT8 MMY-MUP2401HT8

– 5 –
2-1-1. Winding resistance of outdoor unit main parts
No. Part name
1
Compressor
Measure and compare each winding resistance by digital tester.
(Model : LA771A3TB-20M)
Position Resistance value
Red – White
White – Black
Black – Red
2
Compressor
Measure and compare each winding resistance by digital tester.
(Model : LA1200K4FB-10UC)
Position Resistance value
Red – White
White – Black
Black – Red
3
Fan motor
Measure and compare each winding resistance by digital tester.
(Model : ICF-620A1000-1)
Position Resistance value
Red – White
White – Black
Black – Red
4
PMV (Pulse Motor Vale) coil
Measure each winding resistance by digital tester.
(Model : HAM-MD12TF*)
(Model : PMV4-UKVA376) Position Resistance value
White - Red (COM)
Yellow - Red (COM)
Orange - Red (COM)
Blue - Red (COM)
at 20°C
5
PMV (Pulse Motor Valve) coil
Measure each winding resistance by digital tester.
(Model : PMV1-PAM-MD12TF*)
(Model : PMV2, 3-HAM-BD28TCTH-1)
Position Resistance value
White - Red (COM)
Yellow - Red (COM)
Orange - Red (COM)
Blue - Red (COM)
at 20°C
6
4-way valve coil
Measure each winding resistance by digital tester.
(Model : SQ-A2522G*)
at 20°C
7
2-way valve coil
Measure each winding resistance by digital tester.
(Model : SV3D,SV41,SV42-FQ-
A0522G*)
at 20°C
8
2-way valve coil
Measure each winding resistance by digital tester.
(Model : SV3F-TEV-SM0AJ2170B)
at 20°C
2085 Ω ±10%
Resistance value
2163 Ω ±7%
(all same resistance is ok.) at 20°C
46 Ω ±4
100 Ω ±10
Resistance value
2085 Ω ±10%
Resistance value
10.38Ω ±1.04
Checking procedure
0.242 Ω ±0.1
(all same resistance is ok.) at 20°C
0.204 Ω ±0.1
(all same resistance is ok.) at 20°C

– 6 –
2-2. Inverter Assembly
No Name Model Specifications
MMY-MUP0801*
MMY-MUP1001*
MMY-MUP1201* MMY-MUP1401*
MMY-MUP14A1*
MMY-MUP1601*
MMY-MUP1801* MMY-MUP2001*
MMY-MUP2201*
MMY-MUP2401*
1 Power supply terminal block
Noise Filter P.C. board (1)
Noise Filter P.C. board (2)
Line filter
Interface P.C. board
Inverter P.C. board for Compressor (1)
Inverter P.C. board for Compressor (2)
Inverter P.C. board for fan
Magnet Contactor
Magnet Contactor
PTC Thermistor
JXO-6004
MCC-1748
MCC-1748
MCC-1747
MCC-1729
MCC-1729
MCC-1734
FC-1S
FC-2S
MZ32-101R
2
3
4
5
6
7
8
9
10
11
AC600V/75A, 4P
-
-
0.9mH/AC460V/50A-
-
50A
75A
-
-
-
13A/AC500V

– 7 –
3. Wiring Diagrams
8, 10, 12, 14HP Model: MMY-MUP0801*, MUP1201*, MUP1401*
16, 18, 20HP Model: MMY-MUP1601*, MUP1801*, MUP2001*
22, 24HP Model: MMY-MUP2201*, MUP2401
Connector Protective earth Terminal Field wiring Terminal block P.C.Board
RED:RED
WHI:WHITE YEL:YELLOW
BLU:BLUE BLK:BLACK GRY:GRAY ORN:ORANGE GRN:GREEN
Color indication
Inverter P.C.Board (Compressor) Noise filter P.C.Board
Symbol
MCC-1729 MCC-1748 MCC-1734 MCC-1747
Parts name
Interface Control P.C.Board Inverter P.C.Board (Fan)
P.C.Board
Connector Push button switch Rotary switch 2-way valve coil Pulse motor valve (Main) Compressor Dip switch 63A 600VAC 4-way valve coil High pressure switch
SW01,SW02,SW03 63H1,63H2 CN*** F01,F02 SW04,SW05,SW06 SV3D,SV3F,SV41,SV42 PMV1 CM1,CM2 4WV1
SW100,SW101,SW102,SW103 SW104,SW105,SW106
FM1,FM2 Fan motor
Discharge temp. sensorTD1,TD2 Oil temp. sensor
TO
Heat exchangertemp. sensorTE1,TE2,TE3
Air temp. sensor
TL1,TL2,TL3 Liquid temp. sensor TK1,TK2
Pressure sensor (High)PD
PS Pressure sensor (Low) HEATER1,HEATER2 Compressor case heater
Reactor for compressorL-CM1,L-CM2
(MCC-1729) Fuse (Compressor) (MCC-1747) F01,F02
Fuse (Interface) T6.3A 250VAC
(MCC-1748) F01,F02,F03
Fuse (Noise filter) T6.3A 250VAC
(MCC-1734) Fuse (Fan)
6.3A 750VDC
TS1,TS3 Suction temp. sensor Mg-CTT1,Mg-CTT2 Magnet contactor RB Rush current protect resistor F01 PMV4 Pulse motor valve (Sub cool) TB1 CN01,CN02
Terminal block(Power supply) Terminal block(control wiring)
Symbol Parts name
Pulse motor valve (Sub(R))PMV3
PMV2 Pulse motor valve (Sub(L)) TG1,TG2,TG3 Gas temp. sensor
MCC-1754
USB isolate P.C.Board NFC tagNFC
CN860
(YEL)
4
1 4 3 2
4
CN851
(WHI)
1 4 3 2
4
NFC
tag
MCC-1754
2 5 4 3
USB
Type-C
*1 The installation of the optional board
is up to four pieces.
SW01 SW02 SW03
SW04SW05 SW06
SWRT
(Service)
CN800
MCC-1734 (1)
(BLK)
Connector for optional P.C.Board
CN509
L1 RED RED
TB1
GRY
A1 A2
RED
RED
BLK
WHI
31
1 3 4 2 6
(WHI)
CN400
BLK
WHI
(BLU) (WHI)
(RED)
F02
F01
CN508
PMV1
5
CN300
L3
N
CN302
5
PMV3
L2
MCC-1747
*1
(RED)
2
4
3
CN305
(WHI) (RED)
(GRN)
(BLU)
(GRN) (BLU)
(WHI)
(RED)
3
CN500
3
CN513
CN514
CN501
CN600
FM1
CN512
CN510
CN511
Uv
Uh
Uv
Uh
(RED)
㹋
CN303
5
PMV4
CN378
(WHI)
CN381
(WHI)
CN502
(WHI)
t°
21
(YEL)
TO
CN507
TO OUTDOOR
UNIT
5 1 4 2 3 6
(WHI)
SV3F SV3D SV41
CN324
23456
CN910
(WHI)
5
RB
CN01 CN02
BLK
WHI
RED
BLU
3
2
2
2
S
Uc Uc
S
5 4 3 2
HEATER1
2121
t°
21
TD1
t°
43
TK1
6587
3 2 1 4
TG1 TG2
5 7 6 9 8
TE1 TE2
t°
43
TS1
t°
65
TS3
2
t°
TL1
t°
TL2
t°
TL3
10 9 8 7
1
4
3
1 3 4 2 6 1 3 4 2 6
(WHI)
CN301
5
PMV2
1 3 4 2 6
MCC-1734 (2)
FM2
(WHI)
CN802
12
CN01
(RED) 12
CN02
(WHI)
CN301
(WHI)
+ -
F01
YEL BLU
(YEL)
CN100
4
3
12
(WHI)
CN803
(YEL)
CN101
12
3
3
4
TD2TK2
2143
TG3
1 3 2 5 4
TE3
CN380
(BLK)
CN384
(BLU)
1 2
(BLK)
SV42
CN327
HEATER2
21
(RED)
CN306
BLK
WHI
RED
MCC-1729 (1)
-
(WHI)
CN101
L-CM1
RED
WHI
BLK
- +
CN203
CN202 CN201
CN05
CN04
- ++
3
CM1
MS
CN22
21
(WHI)
CN21
(RED)
4
2
2345 21
12
3
RED
Mg-CTT2
BLK
WHI RB
(BLU)
CN102
2
4
2345
MCC-1729 (2)
4
W
V U
(WHI)
CN101
L-CM2
- +
CN203
CN202 CN201
CN05
CN04
CM2
CN22
21
(WHI)
CN21
(RED)
2
21
(BLU)
CN102
CN03
CN02
CN01
F02
F01
CN851
(WHI) CN852
(WHI)
CN103
(YEL)
Mg-CTT2
Coil
A1 A2
- +
3
MS
3
MS
3
MS
CN851
(WHI)
2345
CN852
(WHI)
2345 123
(YEL)
CN103
㹋 㹋
㹋
12
OFF ONSW800
12
OFF ONSW800
12
OFF ONSW800
12
OFF ONSW800
Mg-CTT1
Coil
RED
WHI
W
BLK
V U
RED
WHI
W
BLK
V U
RED
WHI
W
BLK
V U
3
YEL
3
4
4
CN802
(WHI)
2 3 4 5
CN803
(WHI)
2 3 4 5
F01
(RED)
CN01
12
CN02
(WHI)12 12
3
CN100
(YEL)
12
3
CN101
(YEL)
CN301
(WHI)
1
(BLK)(BLK)
t°
t°
5 2 3 4 5 2 3 4
1 2
(ORN)
4WV1
CN317
31
t° t° t° t° t° t°
CN01
CN02
CN03
F01
F02
PS
PD
63H1 P> 63H2 P>
1T21L1
Mg-CTT1
5L3
2T42L3
6T3
1T21L1
5L3
2T42L3
6T3
+ -
+ -
MCC-1748
CN01
U
CN04
CN03
CN02
CN103 (WHI)
- +
CN102
(WHI)
(WHI)
CN101
23456
CN21 CN22 CN23
CN11 CN12 CN13
CN15
CN14
F01
F02
F03
CN05
CN24
TO INDOOR
UNIT TO CENTRAL CONTROLLER
CN304
(RED)
CN331
(WHI)
CN332
(BLU)
CN335
(GRY)
CN200
(YEL)
UUU
SW101 SW104
4 4
SW100
23
ON OFF
1
123
12
1234
SW103
1234
SW102
234
SW105
112
OFF ON
OFF ON
OFF ON
OFF ON
OFF ON
OFF ON
SW106
U
Compressor terminal
S
R
T
W
(BLK)
V
(WHI)
U
(RED)
YEL BLU
YEL
BLU
50Hz
60Hz
POWER SUPPLY
HT8* 380-415V 3N
HT7* 380V 3N
16,18,20 22.24HP
16,18,20 22.24HP
22,24HP 8-20HP
SW800
12
ON
OFF
16,18,20 22.24HP
22,24HP
22,24HP
24HP

– 8 –
3-1. Parts Layout in Outdoor Unit
8,10,12,14HP
Model: MMY-MUP0801HT8, MMY-MUP1001HT8, MMY-MUP1201HT8. MMY-MUP1401HT8
NFC
Low pressure
sensor
Check joint
(Low pressure)
TO sensor
Check joint
(Liquid pipe)
Accumulator
High pressure
sensor
High pressure
SW
Check joint
(High pressure)
Compressor

– 9 –
NFC
Low pressure
sensor
Accumulator
TO sensor
Check joint
(Liquid pipe)
Check joint
(Low pressure)
Check joint
(High pressure)
High pressure
sensor
High pressure
SW
Compressor
14A,16,18,20HP
Model: MMY-MUP14A1HT8, MMY-MUP1601HT8, MMY-MUP1801HT8, MMY-MUP2001HT8

– 10 –
NFC
Low pressure
sensor
Accumulator
TO sensor
Check joint
(Liquid pipe)
High pressure
sensor
High pressure
SW1
High pressure
SW2
Compressor 1
Compressor 2 Check joint
(High pressure)
Check joint
(Low pressure)
22,24HP
Model: MMY-MUP2201HT8, MMY-MUP2401HT8

– 11 –
3-2. Parts Layout in Inverter Assembly
8, 10, 12, 14HP
Model: MMY-MUP0801HT8, MUP1001HT8, MUP1201HT8, MUP1401HT8
Inverter P.C. board for Compressor (1) (MCC-1729)
Communication terminal block
Power supply terminal block
Noise Filter P.C. board (1) (MCC-1748)
Magnet Thermistor
Contactor
Remove the Interface P.C. board sub-assembly.
The Interface P.C. board sub-assembly
Interface P.C. board (MCC-1747)
Inverter P.C. board for fan (MCC-1734)
50

– 12 –
14A, 16, 18, 20HP
Model: MMY-MUP14A1HT8, MUP1601HT8, MUP1801HT8, MUP2001HT8
Inverter P.C. board for Compressor (2) (MCC-1729)
Communication terminal block
Power supply terminal block
Noise Filter P.C. board (2) (MCC-1748)
Thermistor Magnet Contactor
Remove the Interface P.C. board sub-assembly.
The Interface P.C. board sub-assembly
Interface P.C. board (MCC-1747)
75
Inverter P.C. board for fan 2 (MCC-1734)
Inverter P.C. board for fan 1 (MCC-1734)
Line Filter

– 13 –
22, 24HP
Model: MMY-MUP2201HT8, MUP2401HT8
Inverter P.C. board for Compressor (1)2 (MCC-1729)
Communication terminal block
Power supply terminal block
Noise Filter P.C. board (2) (MCC-1748)
Thermistor 1 Magnet Contactor 1
Remove the Interface P.C. board sub-assembly.
The Interface P.C. board sub-assembly
Interface P.C. board (MCC-1747)
Inverter P.C. board for fan 1 (MCC-1734)
50
Inverter P.C. board for fan 2 (MCC-1734)
Inverter P.C. board for Compressor (1)1 (MCC-1729)
Magnet Contactor 2 Thermistor 2
Line Filter

– 14 –
3-3. Outdoor (Inverter) Print Circuit Board
3-3-1. Interface P.C. board (MCC-1747)
PMV1 Output
CN300
PMV2 Output
CN301
PMV3 Output
CN302
PMV4 Output
CN303
High pressure SW
CN305,306
CN510 CN508 CN512 CN509
CN511 CN514 CN513
Option Input/ Output
4-way valve
CN317
Mg-CTT
CN304
AC Power IN
CN400
SV42
CN327
SV41
SV3D
SV3F
CN324
Comp case heater 1
CN331
Comp case heater 2
CN332
Base plate heater
CN335
Sensor input
CN502
㧙
㧙
TK1
TD1
CN507
TO
CN378
TL3
TL2
TL1
TS3
TS1
CN380
TD2
TK2
CN384
TG3
TE3
CN381
TE2
TE1
TG2
TG1
PD sensor CN501
PS sensor CN500
SW101,102,103
SW104,105,106
TERMINATOR
SW100
190mm
UART communication
CN600
NFC
CN851
USB
CN860
Detection of power supply
open phase and miswiring
CN910
59
59
59
5*+'.&
%0%0%0%0%0
%0

10

10

10

10

10

10
+%
+%
59 59 59
2

10

%0
%0 %0 %0 %0
%0%0
0%0%0%
(
(
%0
%0
%0%0
59
59
59 59
%0
..
%0
%0
%0
%0
59 59 59
%0
%0
7 7 7 7
7X 7J7X 7J 7E 7E
5*+'.&5*+'.&
5*+'.&
7 7

– 15 –
Power supply Output L3
CN23
Power supply Input L1
CN21
Power supply Input L2
CN22
Power supply Input L3
CN03
190mm
Power supply Input L1
CN01
Power supply Input L2
CN02
Power supply Input N
CN04
Power supply output to I/F
CN101
Power supply output to Comp
CN102
Vcc output to I/F
CN103
Power supply Input L3
CN03
190mm
Power supply Input L1
CN01
Power supply Input L2
CN02
Power supply Input N
CN04
Power supply Output L3
CN23
Power supply Input L1
CN21
Power supply Input L2
CN22
Power supply output to I/F
CN101
Power supply output to Comp
CN102
Vcc output to I/F
CN103
1290W 1Comp 2Fan model (K4 Compressor)
(14A/16/18/20HP)
1290W 2Comp 2Fan model (A3 Compressor)
(22/24HP)
990W 1Comp 1Fan model (A3 Compressor)
(8, 10, 12. 14HP)
%0
%0
%0%0
6
.
.
.
4'& 9*+ $.-
%0 %0 %0
4'&
9*+ $.-
%0
%0 %0
4'& 9*+ $.-
%0 %0 %0
%0 %0 %0
%0
%0
%0
4'& 9*+ $.-
%0 %0 %0
%0
%0
%0
%0%0
6
3-3-2. Noise Filter P.C. board (MCC-1748)

– 16 –
3-3-3. Inverter P.C. board for compressor (MCC-1729)
Power supply Input L1
CN01
Power supply Input L2
CN02 Power supply Input L3
CN03
Reactor connecting terminal
CN04
Reactor connecting terminal
CN05
UART communication
CN851,CN852
Power supply input/output
CN101,CN102
Vdc output to FAN CN22 Vdc output to FAN
CN21
Compressor output W-phase
CN203
Compressor output V-phase
CN202
Compressor output U-phase
CN201
Vcc output to FAN CN103
8pin 4pin
White
White
190mm 190mm
For inverter address setting
SW800
1290W 2Comp 2Fan model (A3 Compressor)
(22/24HP)
990W 1Comp 1Fan model (A3 Compressor)
(8/10/12/14HP)
1290W 1Comp 2Fan model (K4 Compressor)
(14A/16/18/20HP)
%0
%
%0
(
(
&$
+%
%0
%0
.
%0
%0
%0
%
%
%
%
%0
%0
6
%0 %0
+%
%0
%0
%
4'#%614
%
6 6
6
%
%
%0
,
,
,
%0
%0
4'#%614
%0
%
%0
(
(
&$
+%
%0
%0
.
%0
%0
%0
%
%
%
%
%0
%0
6
%0
%0
+%
%0
%0
%
4'#%614
%
6 6
6
%
%
%0
,
,
,
%0
%0
4'#%614
%0 %0
59 59

– 17 –
3-3-4. Inverter P.C. board for fan (MCC-1734)
3-3-5. USB isolate P.C. board (MCC-1754)
190mm
UART communication
CN802,CN803
Vcc input
CN100 Vcc output
CN101
Vdc input from COMP
CN01
Vdc input from COMP
CN02
For inverter address setting
SW800
Fan motor output
CN301
+%
%0
%0 %0 %0
%0 %0
%0
+%
%0
59
%
%0
(
USB communication to I/F
CN01
USB connector
CN02
screw

– 18 –
4. REFRIGERANT PIPING SCHEMATIC DRAWING
Outdoor unit
8, 10, 12, 14HP
Model: MMY-MUP0801∗∗
∗∗
∗, MUP1001∗∗
∗∗
∗, MUP1201∗∗
∗∗
∗, MUP1401∗∗
∗∗
∗
TE2
TO
M
TS3
TL3
PMV4
TS1
Fan
Fan motor
PMV1
4-way valve
High-pressure
sensor
Low-pressure
sensor
Accumulator
Liquid side
Service valve
Gas side
Service valve
Subcool
Heat exchanger
SV
Solenoid
valve
Capillary
tube
Check
valve
Check
joint Strainer Temperature
sensor
Symbol
Distributor
SV
SV3F
TE1 TG2
TG1
Inverter heat sink
Sub heat exchanger
PMV2
Main heat exchanger
TL2
TL1
TK1
TD1
SV
Compressor
(Inverter)
SV41
High-
pressure
switch
SV3D
SV
Oil separator

– 19 –
14A, 16, 18, 20HP
Model: MMY-MUP14A1∗∗
∗∗
∗, MUP1601∗∗
∗∗
∗, MUP1801*, MUP2001∗∗
∗∗
∗
22, 24HP
Model: MMY-MUP2201∗∗
∗∗
∗, MUP2401∗∗
∗∗
∗
SV
Symbol
SV
Solenoid
valve
Capillary
tube
Check
valve
Check
joint Strainer
Temperature
sensor
Distributor
௬
TD2
TS1
TK2
TK1)
(TD1)
SV
SV
TL3
TS3
Low-pressure
sensor
Liquid side
Service valve
Gas side
Service valve
M
Fan
Fan motor
4-way valve
Subcool
Heat Exchanger
PMV4
Compressor 2
(Inverter)
Compressor 1
(Inverter)
SV41
High-
pressure
switch
High-
pressure
switch SV42
Oil separator
SV
SV3D
SV
SV3F
TL1
High-pressure
sensor
Accumulator
22, 24HP
M
Fan
Fan motor
TO
PMV1
TG3
TG1
PMV2
TG2
PMV3
TL2
TE1
Left side
Main heat exchanger
TE2
Left side
Sub heat exchanger
Right side
Main heat exchanger
TE3
Right side
Sub heat exchanger
Inverter heat sink

– 20 –
5. Method to set Outdoor Unit Function Code No. (O.DN )
The settings can be changed by operating the switches on the interface board.
In the TU2C-Link communication system, it can also be done by operating the wired remote controller.
Applicable controls setup
(settings at the site)
Basic procedure
Be sure to stop the air conditioner before making settings.
(Change the setup while the air conditioner is networking.)
1. Set the rotary switch of the interface P.C. board on the outdoor unit to SW01= [9], SW02= [1] and SW03= [1].
2. The 7-segment display shows “d n.S E t”.
3. When SW04 is pressed, the 7-segment display switches to “d n.0 0 1” and the outdoor unit code NO. [001] is
displayed.
4. Change outdoor unit code NO. [∗∗∗] with SW05 or SW06.
Press SW05 to advance the code. Press and hold SW05 to advance in 5 steps.
Press SW06 to return the code. Press and hold SW05 to return in 5 steps.
5. When SW04 is pressed, the 7-segment display blinks “d.* * * *” and the setting data [∗∗∗∗] being set is
displayed.
6. Change setting data [∗∗∗∗] with SW05 or SW06.
Press SW05 to advance the data. Press SW06 to return the setting data.
7. Push and hold SW04 for more than 2 seconds.
When the flashing stops and remain lit on the display, the setting is complete.
(To return to the item code setting after completing the setting, or to return to the item code setting without
setting, press SW04 once.)
8. Set the rotary switch on the interface P.C. board of the outdoor unit back to SW01= [1], SW02= [1],
SW03= [ 1].
9. Reset the power of the outdoor unit (power off for one minute or more) .
When switching settings from the interface P.C. board of the outdoor unit
SW04
3, 5, 7
4, 6
4, 6
2, 3, 5, 7
1, 8
SW01 SW02 SW03
SW05
Interface P.C. board of header unit
SW06