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Manual abstract: user guide MITSUBISHI SUZ-KA35VAH-TH
Detailed instructions for use are in the User's Guide.
[. . . ] SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS October 2005
No. OC322 REVISED EDITION-A
HFC
utilized
DATA BOOK
R410A
Outdoor unit [model names]
SUZ-KA25VA SUZ-KA35VA SUZ-KA25VAH SUZ-KA35VAH SUZ-KA50VA SUZ-KA60VA SUZ-KA71VA
R410A
[Service Ref. ]
SUZ-KA25VA. TH SUZ-KA35VA. TH SUZ-KA25VAH. TH SUZ-KA35VAH. TH SUZ-KA50VA. TH SUZ-KA60VA. TH SUZ-KA71VA. TH
CONTENTS
Revision: ·SUZ-KA71VA. TH is added in REVISED EDITION-A. ·Some descriptions have been modified. ·Please void OC322.
Indication of model name
SUZ-KA25VA(H). TH SUZ-KA35VA(H). TH
1. COMBINATION OF INDOOR AND OUTDOOR UNITS ······2 2. [. . . ] BOARD
CN643
12 1234 12
MODELS WIRING DIAGRAM
GRN
14
4
CN641
CN642
CN931
12345 12345 123
POWER P. C. BOARD
RT65 RT61 RT62 RT64
CN932
WHITE BLU RED
MF
SYMBOL NAME REACTOR COMPRESSOR OUTDOOR FAN MOTOR DEFROST THERMISTOR TR821 T801
NAME SYMBOL
SYMBOL
NAME
CT, CT761, CT781 CURRENT TRANSFORMER
L61
R61, R831 CURRENT-DETECTING RESISTOR R64A, R64B CURRENT-LIMITING RESISTOR TB1, TB2 TERMINAL BLOCK SWITCHING POWER TRANSISTOR TRANSFORMER X63, X64 RELAY R. V. COIL EXPANSION VALVE COIL
C63A, C63B, C63C SMOOTHING CAPACITOR
L62, L63 CMC COIL
DB61, DB65 DIODE MODULE
MC
NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing. /: Terminal block, : Connector
DSA61
SURGE ABSORBER
MF
F61
FUSE (T20AL250V)
NR63, NR64 VARISTOR
F71
FUSE (T3. 15AL250V)
RT61
F801, F901 FUSE (T3. 15AL250V)
RT62
DISCHARGE TEMPERATURE THERMISTOR 21S4 FIN TEMPERATURE THERMISTOR LEV AMBIENT TEMPERATURE THERMISTOR
IC801
INTELLIGENT POWER DEVICE RT64
IPM, IC932 INTELLIGENT POWER MODULE RT65
SUZ-KA25VAH. TH SUZ-KA35VAH. TH OUTDOOR UNIT
L61 BLK
DB61
230V~ S1 R64B R64A
TB2
WHT
F61
WHT
TAB61
L62
L63
TAB63 BLK
BLK
S2
BLU
12-24V
N W
S3
RED
TAB62 X64 LD70
C63A C63B C63C
++
F801
+
V
P
U
CT761 LD-W CT781
CN724
LD-U LD-V
U
RED W
CN61
BLK 1 WHT 2 RED 3
MC
WHT
TO INDDOR UNIT CONNECTING
CIRCUIT BREAKER TB1
NR64
T801
NR63 F71 X63
1 2
CT
BLU
4
R61
BLK
3
IPM
V
6
LEV
L
~/N 230V 50Hz
N
DSA61 21S4
F901 IC801
LD69 TB800
TR821
GRN
POWER SUPPLY
CN727
GRN/YLW
6 DB65
LDE R831
CN725
CN721
IC932
MODELS WIRING DIAGRAM
RED
BLU
GRN
15
CN726
PE
4
POWER P. C. BOARD LDY
CN601
12345
BLK BLK BLK BLK
1 2
RED
CN722
CN643
12 1234
X66
CN641
12
CN642
CN931
12345 12345 123
26H H
RT65 RT61 RT62
YLW
1 2 3
CN932
BLK BLK
1 2
BLK
WHITE
RT64
MF
SYMBOL NAME REACTOR COMPRESSOR OUTDOOR FAN MOTOR DEFROST THERMISTOR TR821 T801 21S4
NAME SYMBOL
SYMBOL
NAME
CT, CT761, CT781 CURRENT TRANSFORMER
L61
R64A, R64B CURRENT-LIMITING RESISTOR TB1, TB2 TERMINAL BLOCK SWITCHING POWER TRANSISTOR TRANSFORMER X63, X64, X66 RELAY R. V. COIL DEFROST HEATER HEATER PROTECTOR
C63A, C63B, C63C SMOOTHING CAPACITOR
L62, L63 CMC COIL
DB61, DB65 DIODE MODULE
MC
NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing. /: Terminal block, : Connector
DSA61
SURGE ABSORBER
MF
F61
FUSE (T20AL250V)
NR63, NR64 VARISTOR
F71
FUSE (T3. 15AL250V)
RT61
F801, F901 FUSE (T3. 15AL250V)
RT62
DISCHARGE TEMPERATURE THERMISTOR H FIN TEMPERATURE THERMISTOR 26H AMBIENT TEMPERATURE THERMISTOR
IC801
INTELLIGENT POWER DEVICE RT64
IPM, IC932 INTELLIGENT POWER MODULE RT65
LEV
EXPANSION VALVE COIL
R61, R831 CURRENT-DETECTING RESISTOR
PFC
TAB1 X64 CB1 CB2 R64A R64B YLW TAB4 21 CN5 NR64 IPM WHT RS1 BLK RS2 CN4 12 LD2 LD9 RED WHT LD1 CN3 12 RS4 RS3 CT1 U U V V BLK BLK 3 W 4 YLW CB3 RED S RED F64 3 2 R 1 CT2 W RED
POWER SUPPLY ~/N 230V 50Hz CIRCUIT BREAKER TB1
SUZ-KA50VA. TH SUZ-KA60VA. TH OUTDOOR UNIT
L
BRN
L
NF
BLU
N
MC
PE
TAB2 SSR61 BLK
CT61
LDE1
7654321 CN2
NOISE FILTER P. C. BOARD 12 BLU BLU
LDE2 CN912
CN61 3 1
CN901 123 5
CN902 CN903 21 21
GRN/YLW
F911
GRN
GRN
POWER RT64 BOARD GRN
WHT BLU
BLK BLK BLK
BLK
BLK
BLK BLK BLK
TO INDOOR UNIT CONNECTING 230V~TB2
WHT 1 567 CN702 F801 12 CN701 1 3
S2
5
S3
CN663 12 CN661 1234 78 T801 6 LEV RT65 RT61 RT62 RT68 CN795
MODELS WIRING DIAGRAM
HC930
R937B
CN932
SYMBOL CB1~3 CT1, 2 CT61 F64 F801 F911 HC930 IPM L LEV
NAME SMOOTHING CAPACITOR CURRENT TRANSFORMER CURRENT TRANSFORMER FUSE (T2AL 250V) FUSE (T3. 15AL 250V) FUSE (T1AL 250V) INTELLIGENT POWER MODULE INTELLIGENT POWER MODULE REACTOR EXPANSION VALVE COIL
SYMBOL MC MF NF NR64 PFC R64A, B R937A, B RS1~4 RT61 RT62
NOTES: 1. About the indoor side electric wiring NAME SYMBOL NAME refer to the indoor unit electric wiring COMPRESSOR RT64 FIN TEMPERATURE THERMISTOR diagram for servicing. RT65 AMBIENT TEMPERATURE THERMISTOR OUTDOOR FAN MOTOR NOISE FILTER 2. Use copper conductors only (for field wiring). OUTDOOR HEAT EXCHANGER RT68 TEMPERATURE THERMISTOR VARISTOR 3. Symbols below indicate. SSR61 SOLENOID COIL RELAY POWER FACTOR CONTROLLER :Terminal block :Connector T801 TRANSFORMER RESISTOR TB1 TERMINAL BLOCK RESISTOR TB2 TERMINAL BLOCK RESISTOR X64 RELAY DEFROST THERMISTOR DISCHARGE TEMPERATURE THERMISTOR 21S4 R. V. COIL
123
R937A
CN931 12345
12-24V
3 1 CN601
16
BLU
ELECTRONIC 1 2 3 5 CONTROL CN781 P. C. BOARD
CN801
S1
BLK BLK
21S4
RED
GRY PNK ORN BLU YLW RED WHT BLK
MF
PFC
TAB1 X64 CB1 CB2 R64A R64B YLW TAB4 21 CN5 NR64 IPM WHT RS1 RS2 CN4 12 LD2 RED WHT LD1 LD9 CN3 12 RS4 RS3 CT1 U BLK U BLK BLK V V 3 W 4 YLW CB3 RED S RED F64 3 2 1 R CT2 W RED
POWER SUPPLY ~/N 230V 50Hz CIRCUIT BREAKER TB1
L
BRN
L
NF
SUZ-KA71VA. TH OUTDOOR UNIT
BLU
N
MC
PE
TAB2 SSR61 BLK
CT61
LDE1
BLU BLU
7654321 CN2
NOISE FILTER P. C. BOARD 12
LDE2 CN912
CN61 3 1
CN901 123 5
CN902 CN903 21 21
GRN/YLW
F911
GRN
GRN
POWER RT64 BOARD GRN
WHT BLU
BLK BLK BLK
BLK
BLK
BLK BLK BLK
TO INDOOR UNIT CONNECTING 230V~TB2
S2
5
S3
CN681 CN663 12 12 CN661 1234 78 T801 6 LEV RT65 RT61 RT62 RT68 CN795
MODEL WIRING DIAGRAM
HC930
HPS RED
R937B
CN932
SYMBOL CB1~3 CT1, 2 CT61 F64 F801 F911 HC930 HPS IPM L LEV
NAME SMOOTHING CAPACITOR CURRENT TRANSFORMER CURRENT TRANSFORMER FUSE (T2AL 250V) FUSE (T3. 15AL 250V) FUSE (T1AL 250V) INTELLIGEMT POWER MODULE HIGH PRESSURE SWITCH INTELLIGEMT POWER MODULE REACTOR EXPANSION VALVE COIL
SYMBOL MC MF NF NR64 PFC R64A, B R937A, B RS1~4 RT61 RT62 RT64
NAME COMPRESSOR OUTDOOR FAN MOTOR NOISE FILTER VARISTOR POWER FACTOR CONTROLLER RESISTOR RESISTOR RESISTOR DEFROST THERMISTOR DISCHARGE TEMPERATURE THERMISTOR FIN TEMPERATURE THERMISTOR
NOTES: 1. About the indoor side electric wiring SYMBOL NAME refer to the indoor unit electric wiring RT65 AMBIENT TEMPERATURE THERMISTOR diagram for servicing. OUTDOOR HEAT EXCHANGER RT68 TEMPERATURE THERMISTOR 2. Use copper conductors only (for field wiring). SSR61 SOLENOID COIL RELAY 3. Symbols below indicate. T801 TRANSFORMER :Terminal block :Connector TB1 TERMINAL BLOCK TB2 TERMINAL BLOCK X64 RELAY 21S4 R. V. COIL
123
RED
R937A
CN931 12345
RED
F801
12-24V
3 1 CN601
BLU
ELECTRONIC 1 2 3 5 CONTROL CN781 P. C. BOARD 1 567 CN702 12 CN701 1 3
CN801
17
WHT
S1
BLK BLK
21S4
GRY PNK ORN BLU YLW RED WHT BLK
MF
8
REFRIGERANT SYSTEM DIAGRAM
Unit:mm
SUZ-KA25VA. TH SUZ-KA25VAH. TH OUTDOOR UNIT
Refrigerant pipe [9. 52 (with heat insulator) Muffler Stop valve (with service port) Flared connection Discharge temperature thermistor RT62 4-way valve
Muffler
Outdoor heat exchanger Ambient temperature thermistor RT65
Compressor Defrost thermistor RT61
Flared connection
Expansion valve Capillary tube [3. 0![2. 0!240 Muffler Stop valve (with strainer)
Strainer #100 R. V. coil heating ON cooling OFF Refrigerant flow in cooling Refrigerant flow in heating
Refrigerant pipe [6. 35 (with heat insulator)
SUZ-KA35VA. TH SUZ-KA35VAH. TH OUTDOOR UNIT
Refrigerant pipe [9. 52 (with heat insulator) Muffler Stop valve (with service port) Flared connection Discharge temperature thermistor RT62 4-way valve
Unit:mm
Muffler
Outdoor heat exchanger Ambient temperature thermistor RT65
Compressor
Defrost thermistor RT61 Capillary tube [3. 0![1. 8!600(!2) Strainer #100 R. V. coil heating ON cooling OFF Refrigerant flow in cooling Refrigerant flow in heating
Flared connection Muffler Stop valve (with strainer)
Expansion valve
Refrigerant pipe [6. 35 (with heat insulator)
18
SUZ-KA50VA. TH SUZ-KA60VA. TH OUTDOOR UNIT
Refrigerant pipe [12. 7 (SUZ-KA50VA. TH) Muffler (with heat insulator) [15. 88 (SUZ-KA60VA. TH) 4-way valve #100
Unit:mm
Stop valve (with service port) Flared connection Discharge temperature thermistor RT62 Defrost thermistor RT61
Outdoor heat exchanger
Ambient temperature thermistor RT65
Compressor Outdoor heat exchanger temperature thermistor RT68 Flared connection Strainer Receiver #100 Stop valve Refrigerant pipe [6. 35 (with heat insulator) LEV Strainer #100 R. V. coil heating ON cooling OFF Refrigerant flow in cooling Refrigerant flow in heating
Unit:mm
Capillary tube [3. 6![2. 4!50
SUZ-KA71VA. TH OUTDOOR UNIT
Refrigerant pipe [15. 88 (with heat insulator)
Capillary tube [1. 8![0. 6!1000 Oil separator High-pressure 4-way valve switch
Stop valve (with service port) Flared connection
Strainer #100
Defrost thermistor RT61 Discharge temperature thermistor RT62
Outdoor heat exchanger
Ambient temperature thermistor RT65
Compressor
Flared connection Strainer Receiver #100 Stop valve Refrigerant pipe [9. 52 (with heat insulator)
Outdoor heat exchanger temperature thermistor RT68 R. V. coil heating ON cooling OFF Refrigerant flow in cooling Refrigerant flow in heating
LEV
Strainer #100
Capillary tube [3. 6![2. 4!50
19
SUZ-KA25VA. TH SUZ-KA25VAH. TH SUZ-KA35VA. TH SUZ-KA35VAH. TH MAX. REFRIGERANT PIPING LENGTH
Refrigerant piping Models SUZ-KA25VA. TH SUZ-KA35VA. TH SUZ-KA25VAH. TH SUZ-KA35VAH. TH Max. [. . . ] OFF NOTE: The 4-way valve reverses for 5 seconds right before start-up of the compressor.
<COOL> 5 seconds <HEAT> 5 seconds
Compressor
ON OFF ON OFF
ON or OFF
R. V. coil
ON or OFF
Outdoor fan ON OFF motor
10-3. Relation between main sensor and actuator
SUZ-KA25VA. TH SUZ-KA35VA. TH SUZ-KA25VAH. TH SUZ-KA35VAH. TH
Sensor Discharge temperature thermistor Purpose Protection Heating : High pressure protection Defrost thermistor Fin temperature thermistor Ambient temperature thermistor Cooling : High pressure protection Heating : Defrosting Protection Cooling : Low ambient temperature operation Heating:Defrosting(Heater) Compressor LEV Actuator Outdoor fan motor RV-coil Indoor fan motor Defrost heater
Indoor pipe temperature thermistor Cooling : Coil frost prevention
SUZ-KA50VA. TH SUZ-KA60VA. TH SUZ-KA71VA. TH
Sensor Discharge temperature thermistor Indoor pipe temperature thermistor Defrost thermistor Fin temperature thermistor Ambient temperature thermistor Purpose Protection Cooling : Coil frost prevention Heating : High pressure protection Heating : Defrosting Protection Protection Compressor Actuator Outdoor LEV fan motor 4-way valve
Outdoor heat exchanger temperature Cooling : High pressure protection
48
11
SERVICE FUNCTIONS
SUZ-KA25VA. TH SUZ-KA35VA. TH SUZ-KA25VAH. TH SUZ-KA35VAH. TH
CHANGE IN DEFROST SETTING
<JS> When the JS wire of the outdoor Inverter P. C. board is cut/ soldered, the defrost finish temperature is changed. (Refer to 12-6-1. ) Defrost finish temperature SUZ-KA25VA. TH 5: 8: SUZ-KA25VAH. TH SUZ-KA35VA. TH 8: 15: 10: 13: SUZ-KA35VAH. TH 13: 15:
Jumper wire soldered (Initial setting) JS none (cut)
12
TROUBLESHOOTING
SUZ-KA25VA. TH SUZ-KA35VA. TH SUZ-KA25VAH. TH SUZ-KA35VAH. TH SUZ-KA50VA. TH SUZ-KA60VA. TH SUZ-KA71VA. TH 12-1. [. . . ]
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