Midea DLFSHB Скачать руководство пользователя страница 39 | Manualshive

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

39

DIAGNOSIS AND SOLUTION (CONT)

Zero Speed Protection for Compressor/Outdoor Fan or Lack of Compressor Phase or Outdoor Fan/
Compressor Speed Malfunction

Description:

None

Recommended parts to prepare:

• Wiring mistake
•  Faulty fan assembly faulty
•  Faulty fan motor
•  Faulty PCB
•  Faulty compressor

Troubleshooting and Repair:

Check the wiring between the PCB

and compressor.

Is it improperly wired?

the wires and connectors.

YES

NO

Check the outdoor fan and the

properly?

Please refer to

Fan Speed

Out of Control

ƐŽůƵƟŽŶ

.

NO

Check the compressor

resistance values.

YES

Are they within

acceptable parameters?

Replace the compressor.

NO

Replace the outdoor PCB.

YES

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Содержание DLFSHB

Страница 1: ...tifies 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 unsafe practic...

Страница 2: ...DLFSHBH18XAK 24 DLFSHBH24XAK INDOOR UNIT DLF S H B H 09 A 3 DLF INDOOR UNIT S MODEL VOLTAGE 1 115 1 60 3 208 230 1 60 INDOOR UNIT FAN COIL UNIT TYPE H HIGH WALL UNIT TYPE H HEAT PUMP B MAJOR SERIES VA...

Страница 3: ...2 12 7 3 8 9 52 1 2 12 7 1 2 12 7 5 8 16 Indoor Coil Face Area Sq Ft 2 05 2 05 2 05 2 67 2 67 No Rows 2 2 2 2 2 Fins per inch 20 20 20 20 20 Circuits 2 2 2 4 4 Indoor Unit Width in mm 31 57 802 31 57...

Страница 4: ...27 337 13 27 337 Width W In mm 31 57 802 31 57 802 31 57 802 42 60 1082 42 60 1082 Depth D In mm 7 87 200 7 87 200 7 87 200 9 21 234 9 21 234 Height In mm 14 96 380 14 96 380 14 96 380 12 40 315 12 4...

Страница 5: ...munication issues exists a 14 2 stranded shielded wire can be used to replace L2 and S between outdoor unit and indoor unit landing the shield onto ground in the outdoor unit only HIGH WALL INDOOR UNI...

Страница 6: ...ction Diagram 12K 115V Fig 4 Connection Diagram 9K 18K 208 230 1 60 Fig 5 Connection Diagram 24K 208 230 1 60 NOTES 1 Do not use thermostat wire for any connection between indoor and outdoor units 2 A...

Страница 7: ...rer reserves the right to change at any time specifications and designs without notice and without obligations 7 Wiring Diagrams Fig 6 Wiring Diagram 9K 12K 115V and 208 230 Fig 7 Wiring Diagram 18K 2...

Страница 8: ...5 0 4 0 4 MCA A 0 31 0 19 0 19 0 5 0 5 Type DC Insulation class E E E E E Safe class IP20 Welling Dayang IPX0 Tongda IPX0 Weling Tongda IP20 Zhipu IPX0 Weling Tongda IP20 Zhipu IP20 Welling IP40 Dayan...

Страница 9: ...ATION CYCLE DIAGRAM Fig 8 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 unit Refer t...

Страница 10: ...capable of pulling a vacuum of 500 microns and a vacuum gage capable of accurately measuring this vacuum depth The deep vacuum method is the most positive way of assuring a system is free of air and...

Страница 11: ...ctivated and the indoor fan operates after a period of setting time or when the louver is in place If the unit is in the HEATING mode the indoor fan is regulated by the anti cold wind function Compres...

Страница 12: ...fied regardless of time Compressor running frequency is more than the test frequency When the compressor running frequency is equal to the test fre quency T4 is greater than 59 F 15 C or no T4 or T4 f...

Страница 13: ...ts the fan speeds differ DEFROSTING Mode The unit enters the DEFROSTING mode according to changes in the temperature value of T3 T4 as well as the compressor running time In the DEFROSTING mode the co...

Страница 14: ...to the heat exchanger by automatically freezing and then rapidly thawing the frost The internal wind wheel then keeps operating to blow dry the evaporator thus preventing the growth of mold and keepin...

Страница 15: ...des EXPLANATION DISPLAYED CODE ADDITIONAL NOTES T1 T1 T1 temperature T2 T2 T2 temperature T3 T3 T3 temperature T4 T4 T4 temperature TP TP TP temperature Targeted frequency FT Targeted Frequency Actual...

Страница 16: ...dering iron plug between the terminals of the electrolytic capacitor on the contrary side of the outdoor PCB Fig 16 Discharge Position NOTE Fig 16 is for reference only The plug on your unit may diffe...

Страница 17: ...rcuited EC 56 Evaporator coil outlet temperature sensor T2B is in open circuit or has short circuited Eh 60 Indoor room temperature sensor T1 is in open circuit or has short circuited Eh 61 Evaporator...

Страница 18: ...heating Fan mode SILENCE function is activated optional function Frosting and defrosting frequently Unit will not start The power switch is on but fans will not start The temperature on the display bo...

Страница 19: ...e towers and remote boosters Shipping plates remain attached Unit will not start The power switch is on but fans will not start The temperature on the display board cannot be set Unit is on but the wi...

Страница 20: ...of capacity Contact of piping with other piping or external plate Unit will not start Compressor will not start but fans run Compressor and condenser outdoor fan will not start Evaporator indoor fan...

Страница 21: ...t but fans run Compressor and condenser outdoor fan will not start Evaporator indoor fan will not start Condenser Outdoor fan will not start Unit runs but soon stops Compressor short cycles due to ove...

Страница 22: ...2 SENSOR x x x x x x x x T2B SENSOR x x x x x x x x x REACTOR x x x x x x x x x COMPRESSOR x x x x x x x x x ADDITIONAL REFRIGERANT x x x x x x x x x PART REQUIRING REPLACEMENT EC 53 EC 52 EC 54 EC 51...

Страница 23: ...temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor discharge temp Tp sensor Measure the resistance value of each winding by using the multi...

Страница 24: ...the power and allow the large capacity electrolytic capacitors to discharge completely Next dismount the IPM Use a digital tester to measure the resistance between P and UVWN UVW and N Table 16 IPM Co...

Страница 25: ...receive feedback from the EEPROM chip Recommended parts to prepare Indoor PCB Troubleshooting and Repair Review Figure 19 for the location of the EEPROM chip on the indoor and outdoor PCB Fig 19 EEPRO...

Страница 26: ...unit check if W and 1 L are connected Check if the power LED is on No Yes Yes Unplug all the high voltage components connected to main PCB such as 4 way valve heater AC fan one by one to check their r...

Страница 27: ...with the 2 port while the black pin is for 3 port When the air conditioner is normal running the voltage is moving alternately as positive values and negative values If the outdoor unit has a malfunct...

Страница 28: ...0RPM for an extended period of time the unit stops and the LED displays the failure EHO3 Recommended parts to prepare Wiring Faulty fan assembly Faulty fan motor Faulty PCB Troubleshooting and Repair...

Страница 29: ...age value is not in the range shown in Table 17 and 18 the PCB is faulty and needs to be replaced DC motor voltage input and output voltage 220 240V Table 17 Voltage DC motor voltage input and output...

Страница 30: ...voltage is lower than 0 06V or higher than 4 94V the LED displays the failure Recommended parts to prepare Wiring mistake Fan sensor Faulty PCB Troubleshooting and Repair Fig 22 Multimeter Check the c...

Страница 31: ...from the display board Recommended parts to prepare Wiring mistake PCB faulty Display board malfunction Troubleshooting and Repair Is the unit still displaying the error code The unit operates normall...

Страница 32: ...3 times the display area illuminates EC and the AC turns off Recommended parts to prepare Faulty T2 sensor Faulty indoor PCB System problems such as leakage or blockages Troubleshooting and Repair Ar...

Страница 33: ...the outdoor unit s ventilation is working properly Is the heat exchanger dirty No Clean the heat exchanger Yes Replace the outdoor main board Does the problem still exist Yes No Is the outdoor fan ru...

Страница 34: ...lfunction Faulty outdoor fan assembly Compressor malfunction Faulty outdoor PCB Troubleshooting and Repair Check the wiring between the PCB and compressor Does an error exist Ensure proper connections...

Страница 35: ...issues System leakage or blockage Faulty PCB Reactor Troubleshooting and Repair Check the power supply Is it in working order NO Check the connections and wires YES Are they in working order Ensure pr...

Страница 36: ...tection of IPM module PC02 Description If the IPM module temperature is higher than the limited value the LED displays an failure code Recommended parts to prepare Faulty PCB Connection problems Troub...

Страница 37: ...ulty Compressor malfunction Outdoor PCB faulty Troubleshooting and Repair Check the wiring between the PCB and compressor Is it improperly wired Ensure proper connectionsor replace the wires and conne...

Страница 38: ...cription Outdoor PCB main chip does not receive feedback from the compressor driven EEPROM chip Recommended parts to prepare Outdoor main PCB Electric control box Troubleshooting and Repair Replace th...

Страница 39: ...ription None Recommended parts to prepare Wiring mistake Faulty fan assembly faulty Faulty fan motor Faulty PCB Faulty compressor Troubleshooting and Repair Check the wiring between the PCB and compre...

Страница 40: ...igations 40 DISASSEMBLY INSTRUCTIONS Front Panel NOTE This section is for reference only and the photos shown may differ from the actual unit Procedure Illustration 1 Hold the front panel by the tabs...

Страница 41: ...ice and without obligations 41 DISASSEMBLY INSTRUCTIONS CONT Procedure Illustration 3 Open the horizontal louver and push the hook towards the left to open it 4 Bend the horizontal louver lightly with...

Страница 42: ...hout notice and without obligations 42 DISASSEMBLY INSTRUCTIONS CONT Procedure Illustration 5 Pry the electrical cover with a flat screw driver and rotate it towards left then remove it 6 Disconnect t...

Страница 43: ...right to change at any time specifications and designs without notice and without obligations 43 DISASSEMBLY INSTRUCTIONS CONT Procedure Illustration 8 Open the screw cap and then remove the 3 screws...

Страница 44: ...ons and designs without notice and without obligations 44 DISASSEMBLY INSTRUCTIONS CONT Procedure Illustration 10 Release the 5 hooks in the back 11 Pull out the panel frame while pushing the hook thr...

Страница 45: ...and without obligations 45 DISASSEMBLY INSTRUCTIONS CONT Procedure Illustration 12 Release the 5 hooks of the vertical blades then pull the vertical blades to the right and remove them 13 Remove 1 scr...

Страница 46: ...one screw from the electrical control box subassembly If you want to repair the electrical control box components perform step 1 If you want to repair the main control board assembly perform steps 2 t...

Страница 47: ...t notice and without obligations 47 DISASSEMBLY INSTRUCTIONS CONT Procedure Illustration 4 Pull out the electrical main board along the direction indicated in the image to the right 5 Disconnect the c...

Страница 48: ...d designs without notice and without obligations 48 DISASSEMBLY INSTRUCTIONS CONT Evaporator n o i t a r t s u l l I e r u d e c o r P 1 Disassemble the pipe holder located at the rear of the unit 2 R...

Страница 49: ...ns and designs without notice and without obligations 49 DISASSEMBLY INSTRUCTIONS CONT n o i t a r t s u l l I e r u d e c o r P 3 Release the hook on the evaporator Remove the screws 2 on the evapora...

Страница 50: ...ecifications and designs without notice and without obligations 50 DISASSEMBLY INSTRUCTIONS CONT Fan Motor and Fan n o i t a r t s u l l I e r u d e c o r P 1 Remove the screws 2 and remove the xing b...

Страница 51: ...t any time specifications and designs without notice and without obligations 51 DISASSEMBLY INSTRUCTIONS CONT n o i t a r t s u l l I e r u d e c o r P 3 Remove the xing screw 4 Pull out the fan motor...

Страница 52: ...S CONT Step Motor NOTE Remove the front panel and electrical parts before disassembling the step motor Procedure Illustration 1 Remove the screws 2 then remove the horizontal swing motor 2 Remove the...

Страница 53: ...59 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 1 2133 119 246...

Страница 54: ...65 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 38 100 31 62 78 1...

Страница 55: ...7 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 96 204 8 127 260 6 5 41 35 95 66 150 8 97 206 6 128 262 4 6...

Страница 56: ...ll rights reserved A Carrier company Edition Date 04 21 Catalog No MS DLFSHB 01 Replaces NEW Manufacturer reserves the right to change at any time specifications and designs without notice and without...

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