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69

DISASSEMBLY INSTRUCTIONS SIZES 24K − 30K (CONT)

5) Remove the

compressor top 

temp. sensor

connectors,

condenser coil 

temp. sensor

(T3),outdoor 

ambient temp. 

sensor (T4) and 

discharge temp. 

sensor (T5). 

1) Remove the power

supply wires (L1,

L2, S).

2) Remove the

electronic control 

box.

Two blue wires of the four way valve

Four temp. sensor connectors

Содержание 38MAQB09-1

Страница 1: ...onal injury Understand these 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 i...

Страница 2: ...T B 1 1 SYSTEM TYPE Q HEAT PUMP NOT USED OUTDOOR UNIT 38 MA 3 09 38 OUTDOOR UNIT MA MODEL VOLTAGE 1 115 1 60 3 208 230 1 60 NOMINAL CAPACITY 09 3 4 TON 12 1 TON 18 1 1 2 TONS 24 2 TONS 30 2 1 2 TONS U...

Страница 3: ...Charge lbs kg 2 76 1 25 2 76 1 25 2 76 1 25 2 76 1 25 4 19 1 9 5 18 2 35 6 62 3 0 Metering Device EEV EEV EEV EEV EEV Capillary Tube Capillary Tube Outdoor Coil Face Area Sq Ft 9 2 9 2 9 2 9 2 16 0 2...

Страница 4: ...ts System Size 9K 12K 9K 12K V Ph Hz 115 1 60 208 230 1 60 Height H in mm 21 97 558 21 97 558 21 97 558 21 97 558 Width W in mm 31 89 810 31 89 810 31 89 810 31 89 810 Depth D in mm 12 2 310 12 2 310...

Страница 5: ...NS CONT 5 5 8QLW LQFK PP Fig 2 Outdoor Unit 18K Table 4 Outdoor Units System Size 18K V Ph Hz 208 230 1 60 Height H in mm 27 56 700 Width W in mm 33 27 845 Depth D in mm 12 60 320 Weight Net lbs kg 10...

Страница 6: ...LQFK PP Fig 3 Outdoor Unit 24K 30K Table 5 Outdoor Units System Size 24K 30K V Ph Hz 208 230 1 60 Height H in mm 31 89 810 31 89 810 Width W in mm 37 20 945 37 20 945 Depth D in mm 15 55 395 15 55 395...

Страница 7: ...let Air inlet C E Fig 4 Clearances Outdoor Table 6 Clearances UNIT MINIMUM VALUE in mm A 24 609 B 24 609 C 24 609 D 4 101 E 4 101 NOTE The outdoor unit must be mounted at least 2in 50mm above the maxi...

Страница 8: ...e indoor unit Two wires are high voltage AC power one is communication wiring and the other is a ground wire Recommended Connection Method for Power and Communication Wiring To minimize communication...

Страница 9: ...in Power Supply L1 L2 S L1 L2 CONNECTING 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 6...

Страница 10: ...ER CRANKCASE EXPANSIVE VALVE 6 5 CN1 Fig 7 Wiring Diagram for 9K 12K 115V Table 8 Outdoor Unit Control Board CODE PART NAME CN1 Output Pin 5 6 12V Pin 1 Pin 4 Pulse waveform 0 12V CN15 Input Pin 1 Pin...

Страница 11: ...agram for 9K 12K 208 230V Table 9 Outdoor Unit Control Board CODE INPUT or OUTPUT VALUE CN31 Output Pin 5 6 12V Pin 1 Pin 4 Pulse waveform 0 12V CN21 Input Pin3 4 3 3V Pin 2 0V Pin 1 Pin 5 0 3 3V CN22...

Страница 12: ...6 72 1 225 81 7 32 5 6833 E U L B 3 CN14 CN15 1 7 HEATER 1 2 R E T A E H Fig 9 Wiring Diagram for 18K 208 230V Table 10 Outdoor Unit Control Board CODE INPUT or OUTPUT VALUE CN7 CN8 Input 230V High v...

Страница 13: ...or Unit Control Board CODE INPUT or OUTPUT VALUE L_IN Power Voltage AC 230V CN11 Power Voltage AC 230V CN16 Relative to the N terminal voltage DC24V CN15 Maximum voltage DC 5V CN6 Maximum output volta...

Страница 14: ...Y1 HEAT2 HEAT1 CN12 CN11 BLACK RED BLUE BLUE BLUE YELLOW RED BLACK RED BLACK L2 72 1 225 81 7 32 5 6833 L2 S L1 5 5 YELLOW S 2 The electric heating belt of compressor The electric heating belt of chas...

Страница 15: ...WZDK40 38G W 1 ZKFN 50 8 2 WZDK120 38G 1 WZDK120 38G W Phase 3 3 3 3 3 3 3 FLA A 0 14 0 14 0 42 0 42 0 95 0 47 1 21 Type DC DC DC DC DC DC DC Insulation Class E E E E E E E Safe Class IPX0 IPX0 IPX0...

Страница 16: ...Nominal Tube Wall mm 0 24 0 24 0 24 0 24 0 24 0 24 0 27 Tube Enhancement Yes No Yes inner groove Yes inner groove Yes inner groove Yes inner groove Yes inner groove Yes inner groove Yes inner groove...

Страница 17: ...17 REFRIGERATION CYCLE DIAGRAMS Fig 12 Refrigerant Cycle Diagram Heat Pumps...

Страница 18: ...10 3 10 3 Standard Piping Length ft m 25 7 5 25 7 5 25 7 5 25 7 5 25 7 5 25 7 5 25 7 5 Max outdoor indoor height difference ft m 32 10 32 10 32 10 32 10 65 20 65 20 82 25 Max Piping Length with no ad...

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

Страница 20: ...Sensor Protection at Open Circuit and Breaking Disconnection When there is only one malfunctioning temperature sensor the air conditioner keeps working however displays a error code in case of any em...

Страница 21: ...es Recommended Steps 1 Refer to the diagnostic hierarchy charts below and determine the problem at hand 2 Go to the chart listed in the diagnostic hierarchy and follow the steps in the chart for the s...

Страница 22: ...c Capacitors HIGH VOLTAGE CAUTION Fig 22 Electrolytic Capacitors For other models please connect discharge resistance approx 100 40W or soldering iron plug between terminals of the electrolytic capaci...

Страница 23: ...1 time O F0 Overload current protection H 2 times O F1 Outdoor ambient temperature sensor T4 open circuit or short circuit H 3 times O F2 Condenser coil temperature sensor T3 open circuit or short ci...

Страница 24: ...115V Fig 24 Sizes 09 12 115V LEGEND S LED1 The status light by which you can judge the unit s status NORMAL or ERROR standby Flashes once per second low speed flashing error Flashes once per half sec...

Страница 25: ...60 C59 C58 C45 C43 C40 C38 C34 C31 C46 C51 R65 R66 IC1 E28 E17 E11 E9 E7 CN16 C33 T1 RY2 RY3 RY4 CN2 ZR2 L1 C37 Rdi R163 R157 R141 R139 R135 R134 R132 R120 R113 R112 R111 R110 R105 R90 R89 R88 R85 R84...

Страница 26: ...62 R110 E9 E7 C41 C72 C51 C50 C31 R605 R602 R606 R601 R603 R604 FANIPM E8 C414 R508 R507 CN414 C506 C505 C60 R63 E407 R89 E403 E21 E20 E19 E2 R148 C66 C6 C1 R18 D7 IGBT1 D5 C80 C79 R154 LED1 Yellow IC...

Страница 27: ...33 R32 R31 R30 R29 R28 R27 R26 R25 R24 R23 R22 R21 R20 R19 R18 R17 R16 R15 R14 R13 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 Q4 Q3 Q2 PTC1 P 1 GND IC16 IC14 IC13 IC12 IC11 IC10 IC8 IC7 IC5 IC4 IC3 IC2 FUSE2...

Страница 28: ...9 IC18 IC17 IC16 IC15 IC14 IC13 IC12 IC10 IC9 IC8 IC7 IC6 IC5 IC2 IC1 FUSE2 5A 250V FUSE1 T30A 250V E21 E20 E19 E16 E14 E13 E11 E9 E8 E5 E4 E3 E1 DSP1 DSA1 D28 D27 D26 D25 D24 D23 D22 D21 D20 D19 D18...

Страница 29: ...osed causes Installation mistake 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 eras...

Страница 30: ...ulty 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 ind...

Страница 31: ...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 32: ...receive a zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal Supposed causes Connection mistake PCB faulty Troubleshooting Check if the connections and...

Страница 33: ...the failure Supposed causes Wiring mistake Fan ass y faulty Fan motor faulty PCB faulty Troubleshooting Power off then restart the unit 2 minutes later Shut off the power supply Rotate the fan by han...

Страница 34: ...lack GND 0V 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V Table 20 DC motor voltage input and output voltage 115V NO COLOR SIGNAL VOLTAGE 1 Red Vs Vm 140V 190V 2 3 Black GND 0V 4 White V...

Страница 35: ...he sampling voltage is lower than 0 06V or higher than 4 94V the LED displays the failure Supposed causes Wiring mistake Sensor faulty PCB faulty Troubleshooting Check the connection between the tempe...

Страница 36: ...run for 4 seconds and this situation occurs 3 times the display area displays EC and the air conditioner turns off Supposed causes T2 sensor faulty Indoor PCB faulty System problems such as leakage or...

Страница 37: ...uses Power supply problems System blockage PCB faulty Wiring mistake Compressor malfunction Troubleshooting Check the power supply Check the connections and wires Stop the unit No Yes No Correct the c...

Страница 38: ...IPM malfunction Outdoor fan ass y faulty Compressor malfunction Outdoor PCB faulty Troubleshooting Check the wiring between main the PCB and the compressor Correct the connection or replace the wires...

Страница 39: ...39 DIAGNOSIS AND SOLUTION CONT Fig 34 P U Fig 35 P V...

Страница 40: ...40 DIAGNOSIS AND SOLUTION CONT Fig 36 P W Fig 37 N U...

Страница 41: ...41 DIAGNOSIS AND SOLUTION CONT Fig 38 N V Fig 39 N W...

Страница 42: ...sed causes Power supply problems System leakage or block PCB faulty Troubleshooting Check the power supply Check the connections and wires Stop the unit No Yes No Correct the connections or replace th...

Страница 43: ...faulty Troubleshooting Check the air flow system of indoor and outdoor units Clear up the air inlet and outlet or the heat exchanger of indoor and outdoor units Yes No Yes Yes Power off then restart t...

Страница 44: ...s Wiring mistake IPM malfunction Outdoor fan ass y faulty Compressor malfunction Outdoor PCB faulty Troubleshooting Check the wiring between main PCB and compressor Correct the connection or replace t...

Страница 45: ...CB measure the resistance value with a tester Fig 41 Tester Temperature sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor dis...

Страница 46: ...71 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 0 359...

Страница 47: ...84 115 239 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 38 100 31 62 78 172 7 321 118 244 2 233 1 30 190 5 39 102 30 36 79 174 7...

Страница 48: ...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 68 1...

Страница 49: ...f each winding by using the tester Fig 42 Input Terminal Table 24 Resistance Value POSITION RESISTANCE VALUE DA110S1C 30FZ DA130M1C 31FZ DA250S2C 30MT TNB306FPGMC L Blue Red 0 8 20 C 68 F 1 77 20 C 68...

Страница 50: ...ing Chart F C ODT IDT 57 53 13 89 11 67 47 43 8 33 6 11 37 33 2 78 0 56 27 33 2 78 5 17 13 8 33 10 56 BAR 55 30 3 28 5 25 3 22 8 20 8 BAR 65 32 5 30 0 26 6 25 4 23 3 BAR 75 33 8 31 5 27 8 26 3 24 9 Ta...

Страница 51: ...6 11 2 Table 30 Cooling Chart 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 Table 31 Cooling Chart...

Страница 52: ...the panel plate 1 Stop the air conditioner and turn OFF the power breaker 2 Refer to the images on the right hand side to locate the panel s screws 3 Remove the top panel screws and remove the top pa...

Страница 53: ...late screws and remove the right side plate 2 Fan assembly How to remove the fan assembly 1 Remove the panel plate as stated in section 1 then remove the hex nut securing the fan and then remove the f...

Страница 54: ...09 12 CONT 2 Loosen the hooks and then open the electronic control box cover 3 Disconnect the fan motor connector from the electronic control board 4 Remove the fan motor screws 4 5 Remove the fan mot...

Страница 55: ...compressor and the electrical heaters 2 Release the reactor connector 3 Pull out the two blue wires connected to the four way valve 4 Remove the compressor top temp sensor connectors condenser coil te...

Страница 56: ...ur way valve 1 Complete the steps in sections 1 2 3 2 Recover the refrigerant from the refrigerant circuit 3 Remove the coil screw and then remove the coil 4 Detach the welded parts of four way valve...

Страница 57: ...ssor 1 Complete the steps in sections 1 2 and 3 2 Remove the discharge pipe and suction pipe with a burner 3 Remove the hex nuts and washers securing the compressor on the bottom plate 4 Lift the comp...

Страница 58: ...the right to locate the fixing panel screws 3 Remove the top panel screws and remove the top panel 4 Remove the front panel screws including the motor holder securing screws and then remove the front...

Страница 59: ...9 DISASSEMBLY INSTRUCTIONS SIZE 18K CONT 5 Remove the right side plate screws and remove the right side plate Top panel screw Top panel screw Right rear plate screw Motor holder screw Left plate screw...

Страница 60: ...hex nut securing the fan and then remove the fan 2 Remove the one screw Loosen the hooks and open the electronic control box cover 3 Release the fan motor connector and the four way valve connector C...

Страница 61: ...or screws 4 5 Remove the fan motor 3 Electrical parts How to remove the electrical parts 1 Complete the steps in sections 1 and 2 then remove the two compressor connectors and the compressor crankcase...

Страница 62: ...62 DISASSEMBLY INSTRUCTIONS SIZE 18K CONT 3 Remove the reactor connector 4 Remove the grounding screw 5 Remove the power supply wires L1 L2 S 6 Remove the electronic control box...

Страница 63: ...ove the four way valve ass y The picture of four way valve may be different from the one on your side 5 Compressor How to remove the compressor 1 Complete the steps in sections 1 2 and 3 2 Remove the...

Страница 64: ...reaker 2 Refer to the photos on the right to locate the panel screws 3 Remove the top panel screws and remove the top panel 4 Remove the front panel screws including the motor holder screws and then r...

Страница 65: ...TRUCTIONS SIZES 24K 30K CONT 5 Remove the right side plate screws and remove the right side plate Top panel screws Electronic control box Top panel screws Front panel screws Motor holder screws Right...

Страница 66: ...NS SIZES 24K 30K CONT 2 Fan ass y How to remove the fan ass y 1 After removing the panel plate see section 1 remove the hex nut securing the fan and remove the fan Compressor and liquid gas separator...

Страница 67: ...24K 30K CONT 2 Remove the fan motor connector 3 Remove the four screws and then remove the fan motor 3 Electrical parts How to remove the electrical parts 1 Complete the steps in sections 1 and 2 the...

Страница 68: ...68 DISASSEMBLY INSTRUCTIONS SIZES 24K 30K CONT 2 Remove the screws securing the IPM board 3 Release the three temp sensor connectors 4 Remove the two blue wires connected to the four way valve...

Страница 69: ...ressor top temp sensor connectors condenser coil temp sensor T3 outdoor ambient temp sensor T4 and discharge temp sensor T5 1 Remove the power supply wires L1 L2 S 2 Remove the electronic control box...

Страница 70: ...3 2 Recover the refrigerant from the refrigerant circuit 3 Remove the coil screw and then remove the coil 4 Detach the welded parts of the four way valve and the pipe 5 Remove the four way valve ass y...

Страница 71: ...essor 1 Complete the steps in sections 1 2 and 3 2 Remove the discharge pipe and suction pipe with a burner 3 Remove the hex nuts and washers securing the compressor on the bottom plate 4 Lift the com...

Страница 72: ...orporation 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 38MAQ 01SM Repl...

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