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SG-619AHB-01: Service Manual

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

33

Main Parts Check

Temperature Sensor Checking

Disconnect the temperature sensor from the PCB. Measure the resistance value with a tester.

Fig. 34 —Tester

Temperature sensors.
Room temp.(T1) sensor,
Indoor coil temp.(T2) sensor,
Outdoor coil temp.(T3) sensor,
Outdoor ambient temp.(T4) sensor,
Compressor discharge temp.(T5) sensor.
Measure the resistance value of each lead by using the multi

−

meter.

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Содержание 619AHB

Страница 1: ...ol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify...

Страница 2: ...A H B Q 36 A 3 619 INDOOR UNIT A MODEL VOLTAGE 1 115 1 60 3 208 230 1 60 INDOOR UNIT FAN COIL UNIT TYPE H HIGH WALL INDOOR FAN COIL TYPE Q HEAT PUMP NOMINAL CAPACITY 06 1 2 TON 09 3 4 TON 12 1 TON 18...

Страница 3: ...Piping Pipe Connection Size Liquid in mm 1 4 6 35 1 4 6 35 1 4 6 35 1 4 6 35 1 4 6 35 3 8 9 52 3 8 9 52 3 8 9 52 Pipe Connection Size Suction in mm 1 2 12 7 3 8 9 52 3 8 9 52 1 2 12 7 1 2 12 7 5 8 16...

Страница 4: ...8 230V 208 230V 208 230V 208 230V 208 230V 208 230V Height H in mm 11 61 295 11 61 295 11 61 295 11 61 295 12 56 319 14 57 370 14 57 370 14 57 370 Width W in mm 31 3 795 31 3 795 31 3 795 31 3 795 37...

Страница 5: ...or 208 230 volt connection If installed in a high electromagnetic field area EMF and communication issues exist a 14 2 stranded shielded wire can be used to replace 2 and 3 polarity sensitive between...

Страница 6: ...Fig 3 Connection Diagram 12K 115V Fig 4 Connection Diagram 6K 18K 208 230 1 60 Fig 5 Connection Diagram 24K 36K 208 230 1 60 NOTES 1 Do not use thermostat wire for any connection between indoor and o...

Страница 7: ...0 130V AC input CN16 S connect to indoor unit CN60 Connect to 4 way valve 100 130V AC when is on CN17 Connect to compressor heater 100 130V when AC is on CN 15 Connect to chassis heater 100 130V AC wh...

Страница 8: ...s 8 REFRIGERATION CYCLE DIAGRAM Fig 7 Refrigeration Cycle Diagram REFRIGERANT LINES IMPORTANT Both refrigerant lines must be insulated separately Table 2 on page 3 lists the pipe sizes for the indoor...

Страница 9: ...ZKFP 58 8 1 6 Volts V 115 208 230 208 230 208 230 208 230 208 230 208 230 208 230 Phase 1 1 1 1 1 1 1 1 FLA 0 2 0 25 0 25 0 25 0 13 0 5 0 5 0 5 MCA 0 25 0 31 0 31 0 31 0 16 0 63 0 63 0 63 Type DC Ins...

Страница 10: ...ethod is the most effective way of assuring a system is free of air and liquid water see Fig 10 Fig 10 Deep Vacuum Graph Triple Evacuation Method Refer to Fig 11 and proceed as follows 1 Pump the syst...

Страница 11: ...disconnection If only one temperature sensor malfunctions the air conditioner continues to work however the error code appears on the LED in the event of any emergency use If more than one temperature...

Страница 12: ...the indoor unit defrost lamp illuminates and appears Evaporator Coil Temperature Protection Fig 17 Evaporator Coil Temperature Protection When the evaporator temperature is higher than the setting pr...

Страница 13: ...e for 30 minutes and turns to the AUTO mode at the 75 2 F 24 C setting temperature If the air conditioner is off before the power turns off and the air conditioner is required to start up the compress...

Страница 14: ...Frequency Actual Frequency 1F 1E 1d 1c 1b 1A 25 24 23 22 21 20 1 The displaying temperature is the actual value 2 The temperature is C no matter what kind of remote controller is used 3 T1 T2 T3 T4 T...

Страница 15: ...ply is shut off NOTE Remember to discharge the electricity power in capacitor Fig 19 Electrolytic Capacitors For other models please connect discharge resistance approximately 100 40W or a soldering i...

Страница 16: ...odel dependent nF Filter replacement reminder FP Heating in room temperature under 8 C FC Forced cooling AP AP mode of WIFI connection CP Remote switched off LL Remote or Wire controller Lock On Time...

Страница 17: ...n chip does not receive feedback from the EEPROM chip Possible Causes Installation error PCB faulty Troubleshooting EEPROM A read only memory whose contents can be erased and reprogrammed using a puls...

Страница 18: ...ontinuously Possible Causes Wiring error Indoor or outdoor PCB faulty Troubleshooting Measure Vs Is it a positive fluctuation Vs represents the voltage S and N of the outdoor unit Red pan S Black pan...

Страница 19: ...2 terminal while the black pin connects to the 3 terminal When the air conditioner is running normal the voltage moves alternately between approximately 50V to 50V If the outdoor unit malfunctions the...

Страница 20: ...olution E2 Malfunction Decision Conditions When the PCB does not receive a zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal Possible Causes Connection...

Страница 21: ...300RPM for a certain time the air conditioner stops and the LED displays the failure Possible Causes Wiring mistake Fan assembly faulty Fan motor faulty PCB faulty Troubleshooting Power off then rest...

Страница 22: ...ir conditioner to ensure the fan runs normally If the fan runs normally the PCB has an issue and needs to be replaced If the fan does not run normally measure the resistance of each two pins If the re...

Страница 23: ...olution E4 E5 F1 F2 F3 Malfunction Decision Conditions If the sampling voltage is lower than 0 06V or higher than 4 94V the LED displays the failure Possible Causes Wiring mistake Sensor faulty PCB fa...

Страница 24: ...r the compressor starts if T2 Tcool 35 6 F Tcool 2 C does not run for 4 seconds and this situation occurs three times the display area displays EC and the air conditioner turns off Possible Causes Sys...

Страница 25: ...d by checking the specified current detection circuit Possible Causes Power supply problems System blockage PCB faulty Wiring mistake Compressor malfunction Troubleshooting Check the power supply Chec...

Страница 26: ...LED displays P0 and the air conditioner powers off Possible Causes Wiring mistake IPM malfunction Outdoor fan assembly faulty Compressor malfunction Outdoor PCB faulty Troubleshooting Check the wiring...

Страница 27: ...SG 619AHB 01 Service Manual Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 27 DIAGNOSIS AND SOLUTION CONT Fig 27 P U Fig 28 P V...

Страница 28: ...SG 619AHB 01 Service Manual Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 28 DIAGNOSIS AND SOLUTION CONT Fig 29 P W Fig 30 N U...

Страница 29: ...SG 619AHB 01 Service Manual Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 29 DIAGNOSIS AND SOLUTION CONT Fig 31 N V Fig 32 N W...

Страница 30: ...detected by checking the specified voltage detection circuit Possible Causes Power supply problems System leak or blockage PCB faulty Troubleshooting Fig 33 Test NOTE Measure the DC voltage between t...

Страница 31: ...ssible Causes Power supply problems System leak or blockage PCB faulty Troubleshooting Check the air flow system of the indoor and outdoor units Clear up the air inlet and outlet or the heat exchanger...

Страница 32: ...detection and compressor rotation speed signal detection Possible Causes Wiring mistake IPM malfunction Outdoor fan assembly faulty Compressor malfunction Outdoor PCB faulty Troubleshooting Check the...

Страница 33: ...eck Temperature Sensor Checking Disconnect the temperature sensor from the PCB Measure the resistance value with a tester Fig 34 Tester Temperature sensors Room temp T1 sensor Indoor coil temp T2 sens...

Страница 34: ...44 36 97 6 13059 76 169 1 34105 116 241 0 4006 3 27 41 5878 37 99 5 87359 77 171 1 29078 117 243 0 38991 2 28 39 8239 38 100 5 62961 78 172 1 25423 118 244 0 37956 1 30 37 1988 39 102 5 39689 79 174...

Страница 35: ...93 37 3 74 165 8 358 114 237 2 489 5 23 234 9 35 95 35 78 75 167 8 084 115 239 2 422 4 25 222 8 36 97 34 32 76 169 7 82 116 241 2 357 3 27 211 4 37 99 32 94 77 171 7 566 117 243 2 294 2 28 200 7 38 1...

Страница 36: ...1 6 2 5 36 5 30 86 61 141 8 92 197 6 123 253 4 3 37 4 31 87 8 62 143 6 93 199 4 124 255 2 3 5 38 3 32 89 6 63 145 4 94 201 2 125 257 4 39 2 33 91 4 64 147 2 95 203 126 258 8 4 5 40 1 34 93 2 65 149 96...

Страница 37: ...part is for reference only and the photos may differ from your actual unit Procedure Illustration 1 Place your hands along the lter ssides pull the lter gently along the vertical direction and then re...

Страница 38: ...ime specifications and designs without notice and without obligations 38 DISASSEMBLY INSTRUCTIONS CONT Procedure Illustration 4 Open the panel assembly move the slider to secure the panel 5 Open the t...

Страница 39: ...Pull the two sides of the bottom panel along the direction shown in the image to the right to remove it 8 Pull the panel s support bar to remove it 9 Remove the panel assembly Caution If you want to c...

Страница 40: ...ons and designs without notice and without obligations 40 DISASSEMBLY INSTRUCTIONS CONT Procedure Illustration 10 Remove 1 screw from the display board 11 Rotate the display board subassembly in the d...

Страница 41: ...notice and without obligations 41 DISASSEMBLY INSTRUCTIONS CONT Electrical parts Anti static gloves must be worn Procedure Illustration 1 Pull the two ends of the electronic control box cover with yo...

Страница 42: ...llustration 4 Disconnect the wires 5 Remove one screw used for the ground connection 6 Pull two clips of the electronic control box along the direction shown in the picture to the right to remove the...

Страница 43: ...igations 43 DISASSEMBLY INSTRUCTIONS CONT Procedure Illustration 7 Remove the other screw used for the ground connection 8 Collapse the support bar 9 Pull the electronic control box cover along the di...

Страница 44: ...cifications and designs without notice and without obligations 44 DISASSEMBLY INSTRUCTIONS CONT Evaporator NOTE Remove the front panel electrical parts and the fan Procedure Illustration 1 Remove the...

Страница 45: ...and without obligations 45 DISASSEMBLY INSTRUCTIONS CONT Procedure Illustration 3 Remove the screw 1 on the evaporator located at the left xed plate 4 Remove the screw 1 on the evaporator located on t...

Страница 46: ...ice and without obligations 46 DISASSEMBLY INSTRUCTIONS CONT Fan Motor and Fan Procedure Illustration 1 Open the two stop blocks of the chassis assembly see picture on the right 2 Remove the chassis a...

Страница 47: ...ight to change at any time specifications and designs without notice and without obligations 47 DISASSEMBLY INSTRUCTIONS CONT Procedure Illustration 4 Remove the bearing sleeve 5 Remove the screw 6 Pu...

Страница 48: ...rved A Carrier company Edition Date 05 21 Catalog No SG 619AHB 01 Replaces NEW SG 619AHB 01 Service Manual Manufacturer reserves the right to change at any time specifications and designs without noti...

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