User manual MITSUBISHI SUZ-KA50VA-TH

[. . . ] 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. [. . . ]