Carrier 38MHRB series Скачать руководство пользователя страница 67

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DISASSEMBLY INSTRUCTIONS SIZES 24K (208−230V) (CONT)

4) Disconnect the fan

motor connector from
the electronic control
board.

5) Remove the fan motor

screws (4) of the fan
motor, then remove
the motor.

T3, T4, T5, sensor

Pressure switch

Compressor

wire

Electronic expansion

4 way valve

Motor wire

Содержание 38MHRB series

Страница 1: ...hese signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING s...

Страница 2: ...38MHRBQ24AA3 B R 09 MAJOR SERIES UNIT TYPE R OUTDOOR UNIT MAXIMUM NUMBER OF FAN COIL UNITS THAT CAN BE CONNECTED TO THE OUTDOOR UNIT A 1 1 OUTDOOR UNIT 38 MH 3 Q 38 OUTDOOR UNIT MH MODEL VOLTAGE 1 11...

Страница 3: ...essor Type Rotary Inverter Rotary Inverter Rotary Inverter Rotary Inverter Model ASN98D22UFZ ASK89D29UEZD ASN140D21UFZ ATN150D30UFZA Oil Type VG74 VG74 VG74 VG74 Oil Charge Fl Oz 13 0 13 0 15 5 23 6 R...

Страница 4: ...Rated Current RLA 10 5 5 5 6 8 10 5 12 0 Outdoor Unit Width in mm 30 31 770 30 31 770 30 31 770 31 50 800 33 27 845 Unit Height in mm 21 85 555 21 85 555 21 85 555 21 81 554 27 64 702 Unit Depth in mm...

Страница 5: ...h W in mm Depth D in mm Weight Net lbs kg 12K 115V 21 85 555 30 31 770 11 81 300 69 31 3 9K 208 230V 21 85 555 30 31 770 11 81 300 63 28 6 12K 208 230V 21 85 555 30 31 770 11 81 300 65 5 29 7 18K 208...

Страница 6: ...0 24 514 21 81 554 2 36 6 0 3 37 8 5 5 13 39 340 0 47 1 2 12 24 311 12 80 325 13 11 333 2 76 7 0 H H1 H2 D1 D2 D3 2 43 6 1 8 4 17 1 06 0 87 2 2 R 0 79 R 20 R 0 24 R 6 2 43 6 1 6 D W W1 W2 B1 B2 A2 A1...

Страница 7: ...7 DIMENSIONS OUTDOOR CONT Unit inch mm Fig 3 Size 24K...

Страница 8: ...snow depth 118in 300cm ormore 19in 48cm ormore onamultipleparallel unitarrangement 4in 10cm ormoreon asingleparallelunit arrangement 24in 60cm ormore 59in 150cm ormoreona multipleparallel unitarrangem...

Страница 9: ...to the outdoor unit The field supplied 14 3 stranded wire with ground with a 600 volt insulation rating power communication wiring from the outdoor unit to indoor unit consists of four 4 wires and pro...

Страница 10: ...G CABLE OUTDOOR TO INDOOR Indoor Unit Power Supply 208 230 1 60 Indoor Signal High Voltage GND Ground Power to Indoor Unit Indoor Signal High Voltage 208 230 1 60 FIELD POWER SUPPLY GND 208 230 1 60 1...

Страница 11: ...11 WIRING DIAGRAMS COOLING ONLY Fig 7 Wiring Diagram Size Cooling Only Size 12K 115V...

Страница 12: ...12 WIRING DIAGRAMS COOLING ONLY CONTINUED Fig 8 Wiring Diagram Cooling Only Size 12K 230V...

Страница 13: ...13 WIRING DIAGRAMS COOLING ONLY CONTINUED Fig 9 Wiring Diagram Cooling Only Sizes 18 24K...

Страница 14: ...14 WIRING DIAGRAMS HEAT PUMP Fig 10 Wiring Diagram Heat Pump Size 12K 115V...

Страница 15: ...15 WIRING DIAGRAMS HEAT PUMP CONTINUED Fig 11 Wiring Diagram Heat Pump Sizes 09 12 18 230V...

Страница 16: ...16 WIRING DIAGRAMS HEAT PUMP CONTINUED Fig 12 Wiring Diagram Heat Pump Size 24 230V...

Страница 17: ...E HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE 4 WAY VALVE COOLING HEATING T2 Evaporator temp sensor T1 Room temp sensor ACCUMULATOR INDOOR OUTDOOR CHECK VALVE H...

Страница 18: ...engths allowed Table 12 Piping and Refrigerant Information System Size 12K 115V 9K 208 230V 12K 208 230V 18K 208 230V 24K 208 230V Piping Min Piping Length ft m 10 3 10 3 10 3 10 3 10 3 Standard Pipin...

Страница 19: ...e of pulling a vacuum of 500 microns and a vacuum gage capable of accuratelymeasuring this vacuum depth The deep vacuum method is the most positive way of assuring a system is free of air and liquid w...

Страница 20: ...runs at a different fan speed according to T4 For different outdoor units the fan speeds differ Fig 19 Outdoor Fan Running Rules The auto fan adheres to the following rules Fig 20 Auto Fan Fig 21 Comp...

Страница 21: ...zing protection condenser high temperature protection and outdoor unit frequency limit are active and are the same as that in the cooling mode The outdoor fan operates the same as in cooling mode Forc...

Страница 22: ...s it displays the code value for 25 seconds see Table 15 Table 15 Information Enquiry ENQUIRY INFORMATION DISPLAY VALUE MEANING REMARK T1 T2 T3 T4 T2B TP TH Targeted Frequency Actual Frequency 1F 1E 1...

Страница 23: ...r Electrolytic Capacitors HIGH VOLTAGE CAUTION Fig 25 Electrolytic Capacitors For other models please connect discharge resistance approximately 100 40W or a soldering iron plug between the terminals...

Страница 24: ...oad current protection 2 times O F1 Outdoor ambient temperature sensor T4 open circuit or short circuit 3 times O F2 Condenser coil temperature sensor T3 open circuit or short circuit 4 times O F3 Com...

Страница 25: ...t Test Port bridge IPM for compressor IPM for DC FAN P Fig 27 Size 12 115V T4 TP T3 N L H N N Rdi Have Low Fre YES NO No U BLUE V RED W BLACK TESTPORT PMV DC FAN DR_L DR_N Earth HEAT2 AC FAN 4 WAY HEA...

Страница 26: ...blems LED3 Green LED2 Red IU display 1 standby for normal O X 2 Operation normally X O 3 IPM malfunction or IGBT over strong current protection X P0 4 Over voltage or too low voltage protection O O P1...

Страница 27: ...Installation mistake S PCB faulty Troubleshooting Yes Replace the indoor outdoor main PCB Power off then restart the unit 2 minutes later EEPROM A read only memory whose contents can be erased and rep...

Страница 28: ...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 N Power off then restart the unit 2 minutes later Replace the i...

Страница 29: ...ing normal the voltage moves alternately between 50V to 50V If the outdoor unit has a malfunction the voltage will move alternately with positive value If the indoor unit has malfunction the voltage w...

Страница 30: ...eceive a zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal Supposed causes S Connection mistake S PCB faulty Troubleshooting Check if the connections an...

Страница 31: ...failure Supposed causes S Wiring mistake S Fan assembly faulty S Fan motor faulty S PCB faulty Troubleshooting Power off then restart the unit 2 minutes later Shut off the power supply Rotate the fan...

Страница 32: ...VOLTAGE 1 Red Vs Vm 140V 190V 2 3 Black GND 0V 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V 2 Outdoor DC Fan Motor control chip is in the outdoor PCB S Power on the unit and check if t...

Страница 33: ...sampling voltage is lower than 0 06V or higher than 4 94V the LED displays the failure Supposed causes S Wiring mistake S Sensor faulty S PCB faulty Troubleshooting Check the connection between the te...

Страница 34: ...or 4 seconds and this situation occurs 3 times the display area displays EC and the air conditioner will turn off Supposed causes S T2 sensor faulty S Indoor PCB faulty S System problems such as leaka...

Страница 35: ...S Power supply problems S System blockage S PCB faulty S Wiring mistake S Compressor malfunction Troubleshooting Check the power supply Check the connections and wires Stop the unit No Yes No Correct...

Страница 36: ...S IPM malfunction S Outdoor fan assembly faulty S Compressor malfunction S Outdoor PCB faulty Troubleshooting Check the wiring between main the PCB and the compressor Correct the connection or replace...

Страница 37: ...37 DIAGNOSIS AND SOLUTION CONT Fig 36 P U Fig 37 P V...

Страница 38: ...38 DIAGNOSIS AND SOLUTION CONT Fig 38 P W Fig 39 N U...

Страница 39: ...39 DIAGNOSIS AND SOLUTION CONT Fig 40 N V Fig 41 N W...

Страница 40: ...causes S Power supply problems S System leakage or block S PCB faulty Troubleshooting Check the power supply Check the connections and wires Stop the unit No Yes No Correct the connections or replace...

Страница 41: ...ditions If the sampling voltage is not 5V the LED displays the failure Supposed causes S Power supply problems S System leakage or block S PCB faulty Troubleshooting Yes Tighten the screws and apply s...

Страница 42: ...ring mistake S IPM malfunction S Outdoor fan assembly faulty S Compressor malfunction S Outdoor PCB faulty Troubleshooting Check the wiring between main PCB and compressor Correct the connection or re...

Страница 43: ...sor from the PCB measure the resistance value with a tester Fig 43 Tester Temperature sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor...

Страница 44: ...re the resistance value of each winding by using the tester Fig 44 Tester Table 20 Compressor Checking Position Resistance Value ASN98D22UFZ ASM135D23UFZ ATF235D22UMT ATF250D22UMT Blue Red 1 57 1 75 0...

Страница 45: ...W and N Table 21 IPM Continuity Check Digital Tester Normal Resistance Value Digital Tester Normal Resistance Value Red Black Several M Red Black Several M P N U N U V V W W Red Fan Motor Measure the...

Страница 46: ...10 7 BAR 80 67 9 3 8 9 9 1 9 6 11 2 F C ODT IDT 75 23 89 85 29 44 95 35 105 40 56 115 46 11 PSI 70 59 119 113 117 125 147 PSI 75 63 124 120 126 132 155 PSI 80 67 135 129 132 140 162 F C ODT IDT 75 23...

Страница 47: ...AR 75 33 8 31 5 27 8 26 3 24 9 F C ODT IDT 57 53 13 89 11 67 47 43 8 33 6 11 37 33 2 78 0 56 27 23 2 78 5 17 13 8 33 10 56 PSI 55 439 413 367 330 302 PSI 65 471 435 386 368 339 PSI 75 489 457 403 381...

Страница 48: ...the air conditioner and turn OFF the power breaker 2 Remove the big handle first and then remove the top cover 3 screws 3 Remove the front panel screws 7 4 Remove the right side panel screws 11 2 4 3...

Страница 49: ...y 1 Remove the nut securing the fan and remove the fan 2 After removing the top cover release the hooks and open the electronic control box cover 3 Disconnect the fan motor connector from the electron...

Страница 50: ...50 DISASSEMBLY INSTRUCTIONS SIZES 12K 115V CONT 5 4 Remove the fan motor screws 4 then remove the motor...

Страница 51: ...electrical parts 1 After you complete the steps in item 1 and 2 remove the compressor connector 2 Pull out the two blue wires connected to the four way valve 3 Pull out connectors of the condenser co...

Страница 52: ...SASSEMBLY INSTRUCTIONS SIZES 12K 115V CONT 4 Disconnect the electronic expansion valve wire from the control board 5 Remove the ground wires 6 Remove the wires 1 2 3 7 Remove the electronic control bo...

Страница 53: ...of the four way valve and pipe 5 Remove the four way valve assembly The picture of four way valve may be different from your actual valve 5 Compressor How to remove the compressor 1 Complete the work...

Страница 54: ...el plate 1 Stop the air conditioner and turn OFF the power breaker 2 Remove the big handle first then remove the top panel 3 screws 3 Remove the front panel screws 6 4 Remove the right side panel scre...

Страница 55: ...to remove the fan assembly 1 After removing the panel plate using section 1 remove the hex nut securing the fan then remove the fan 2 Release the hooks and open the electronic control box cover 1 2 C...

Страница 56: ...the electronic control board 4 Remove the fan motor screws 4 Then remove the fan motor 3 Electrical parts How to remove the electrical parts 1 After completing the work in sections 1 and 2 remove the...

Страница 57: ...out connectors of the condenser coil temp sensor T3 outdoor ambient temp sensor T4 and discharge temp sensor T5 4 Disconnect the electronic expansion valve wire 5 Remove the grounding screw 6 Remove t...

Страница 58: ...parts of the four way valve and pipe 5 Remove the four way valve assembly The picture of four way valve may differ from your actual valve 3 4 5 Compressor How to remove the compressor 1 Complete steps...

Страница 59: ...ks Panel plate How to remove the panel plate 1 Stop the air conditioner and turn OFF the power breaker 2 Remove the top panel screws 3 3 Remove the front panel screws 9 4 Remove the right side panel s...

Страница 60: ...panel plate using section 1 remove the hex nut securing the fan then remove the fan 2 After removing the top cover release the hooks then open the electronic control box cover 1 2 T3 T4 T5 sensor Mot...

Страница 61: ...the connector for fan motor from the electronic control board 4 Remove the fan motor screws Then remove the fan motor 3 Electrical parts How to remove the electrical parts 1 Complete the work of items...

Страница 62: ...CONT 2 Pull out the two blue wires connected to the four way valve 3 Remove the connectors of the condenser coil temp sensor T3 outdoor ambient temp sensor T4 and discharge temp sensor T5 4 Disconnec...

Страница 63: ...63 DISASSEMBLY INSTRUCTIONS SIZES 18K 208 230V CONT 5 Remove the electric heaters 6 Remove the grounding screw 7 Remove the wires 1 2 3 or L1 L2 S Then remove the electronic control box 5 7...

Страница 64: ...parts of four way valve and pipe 5 Remove the four way valve assembly The picture of four way valve may differ from your actual valve 3 5 Compressor How to remove the compressor 1 After completing st...

Страница 65: ...panel plate 1 Stop the air conditioner and turn OFF the power breaker 2 Remove the big handle first then remove the top cover 7 screws 3 Remove the front panel screws 11 4 Remove the right side panel...

Страница 66: ...ly How to remove the fan assembly 1 Remove the panel plate using the steps in section 1 2 Remove the nut securing the fan then remove the fan 3 Release the hooks and remove the screws Open the electro...

Страница 67: ...CONT 4 Disconnect the fan motor connector from the electronic control board 5 Remove the fan motor screws 4 of the fan motor then remove the motor 5 4 T3 T4 T5 sensor Pressure switch Compressor wire...

Страница 68: ...electrical parts 1 After completing the work in sections 1 and 2 remove the compressor connector 2 Pull out the two blue 3 wires connected with the four way valve 4 Pull out connectors of the condens...

Страница 69: ...208 230V CONT 5 Disconnect the pressure switch connector 6 Disconnect the electronic expansion valve wire from the control board 7 Remove the ground wires 8 Remove the wires 1 2 3 or L1 L2 S Then remo...

Страница 70: ...e welded parts of four way valve and pipe 5 Remove the four way valve assembly The picture of four way valve may differ from your actual valve 5 Compressor How to remove the compressor 1 Complete step...

Страница 71: ...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 1 2133 119 246 0 36954 0 32 35 2024 40 104 5 17519 80 176 1 17393 120 248 0 3...

Страница 72: ...39 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 38 100 31 62 78 172 7 321 118 244 2 233 1 30 190 5 39 102 30 36 79 174 7 086 119...

Страница 73: ...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 96 204 8 127 260 6 5 41 35 95 66 150 8 97 206 6 128 262 4 6 42 8 36 96 8 67 152 6 98 208 4 129 264 2 7 44 6 37 98 6...

Страница 74: ...BDP S 7310 W Morris St S Indianapolis IN 46231 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No SG 38MHRB 01 Replaces...

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