Midea MONB-76C Technical Manual Download Page 46 | Manualshive

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MCAC-RTSM-201301-01 Midea R22 T1 side-discharge duct manual

35

Timer lamp flashing at 5Hz, Operation lamp flashing at 5Hz

Defrosting lamp flashing at 5Hz

For these series products, if the condenser temperature sensor malfunction is displayed, it is enough

to check whether wiring has problem. If the wiring is correct, the PCB should be replaced.

Operation lamp and timer lamp flashing at 5Hz

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Summary of Contents for MONB-76C

Page 1: ...r Unit Duct Indoor Unit Technical Manual Applicable Model Indoor unit Outdoor unit MTA1 76HR MONB 76H MTA1 76CR MONB 76C MTA1 96HR MONB 96H MTA1 96CR MONB 96C Midea reserves the right to discontinue o...

Page 2: ...NS 8 2 5 DIMENSION UNIT MM 10 2 6 SERVICE SPACE 11 2 7 WIRING DIAGRAM 11 2 8 CAPACITY TABLES 13 2 9 ELECTRIC CHARACTERISTICS 11 2 10 SOUND LEVELS 12 2 11 STATIC PRESSURE CURVE 13 3 INSTALLATION 14 3 1...

Page 3: ...5 MAINTENANCE 41 6 EXPLODED VIEW 44 7 ACCESSORIES 60 8 WIRELESS REMOTE CONTROLLER R51 E STANDARD 60 8 1 REMOTE CONTROLLER SPECIFICATIONS 60 8 2 INTRODUCTION OF FUNCTION BUTTONS ON THE REMOTE CONTROLLE...

Page 4: ...80 415V 3Ph 50Hz Cooling only 8HP Indoor MTA1 76CR 1 366 450 716 220 240V 50Hz 1Ph Outdoor MONB 76C 1 120 1 558 400 380 415V 3Ph 50Hz Cooling and heating 10HP Indoor MTA1 96HR 1 366 450 716 220 240V 5...

Page 5: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 4 1 3 Nomenclature Indoor unit Outdoor unit...

Page 6: ...tion is not hindered by the location of lighting fixtures or room structure Air inlet and outlet flanges are standard and easy for duct connection Multi diffusers from one indoor unit supply airflow t...

Page 7: ...ing two speed levels High Pressure Switch When the discharge pressure of compressor is up to 3 3MPa or higher the protection switch will be triggered and if the discharge pressure is down to 2 4MPa th...

Page 8: ...MCAC RTSM 201301 01 Midea R22 T1 side discharge duct manual 7 2 3 Unit structure...

Page 9: ...Hydrophilic aluminum fin Hydrophilic aluminum fin Pipe type size Inner grooved copper pipe 7mm Coil W H mm 1 202 378 1 202 378 1 202 378 1 202 378 Number of circuits 8 7 8 7 5 4 5 4 Indoor air flow m...

Page 10: ...s 1 6 1 6 2 2 Tube pitch row pitch mm 21 13 37 21 13 37 21 13 37 21 13 37 Fin spacing mm 1 5 1 5 1 5 1 5 Fin type Hydrophilic aluminum fin Hydrophilic aluminum fin Pipe size and type mm 7 7 7 7 Inner...

Page 11: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 10 2 5 Dimension Unit mm Indoor unit...

Page 12: ...MCAC RTSM 201301 01 Midea R22 T1 side discharge duct manual 11 Outdoor unit 2 6 Service space Indoor unit...

Page 13: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 12 Outdoor unit Top view of the outdoor unit single unit installed Top view of the outdoor unit multiple units installed...

Page 14: ...Midea R22 T1 side discharge duct manual MCAC UTSM 201301 01 11 2 7 Wiring diagram MTA1 76HR MTA1 96HR...

Page 15: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 12 MTA1 76CR MTA1 96CR...

Page 16: ...Midea R22 T1 side discharge duct manual MCAC UTSM 201301 01 11 MONB 76H MONB 96H...

Page 17: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 12 MONB 76C MONB 96C...

Page 18: ...7 3 14 4 6 4 18 1 15 1 6 7 19 0 15 9 7 1 20 0 16 7 7 4 21 0 17 5 7 8 32 20 17 1 15 6 6 3 18 0 16 3 6 7 18 9 17 2 7 0 19 8 18 0 7 3 20 8 18 9 7 7 21 8 19 9 8 1 2650 23 90 17 8 11 9 6 6 18 7 12 5 6 9 19...

Page 19: ...18 9 15 8 11 0 32 20 15 4 14 0 9 0 16 2 14 7 9 4 17 0 15 5 9 9 17 9 16 2 10 4 18 8 17 1 10 9 19 7 17 9 11 5 2650 23 90 16 1 10 7 9 3 16 9 11 2 9 8 17 7 11 8 10 3 18 6 12 4 10 8 19 5 13 0 11 3 20 5 13...

Page 20: ...8 4 23 8 19 8 8 8 25 0 20 8 9 3 26 2 21 9 9 7 32 20 21 4 19 4 7 9 22 4 20 4 8 3 23 6 21 4 8 7 24 7 22 5 9 2 26 0 23 6 9 6 27 3 24 8 10 1 3000 23 90 22 2 14 8 8 2 23 3 15 6 8 6 24 5 16 3 9 1 25 7 17 2...

Page 21: ...1 6 18 0 13 0 22 7 18 9 13 6 23 8 19 8 14 3 32 20 19 4 17 6 11 6 20 4 18 5 12 2 21 4 19 4 12 8 22 5 20 4 13 5 23 6 21 4 14 1 24 8 22 5 14 9 3000 23 90 20 2 13 4 12 1 21 2 14 1 12 7 22 2 14 8 13 3 23 4...

Page 22: ...Motor Rated Output kW FLA Full Load Amps A IFM Indor Fan Motor Model Outdoor Unit Power Supply Compressor OFM Hz Voltage Min Max MCA TOCA MFA MSC RLA kW FLA MONB 76H 50 380 415 342 440 15 5 19 3 23 2...

Page 23: ...1 01 12 2 10 Sound levels Indoor units Model Noise level MTA1 76HR 55 dB A MTA1 76CR 55 dB A MTA1 96HR 55 dB A MTA1 96CR 55 dB A Outdoor units As the following picture the nominal noise level is the m...

Page 24: ...MCAC RTSM 201301 01 Midea R22 T1 side discharge duct manual 13 Model Noise level MONB 76H 60 dB A MONB 76C 60 dB A MONB 96H 60 dB A MONB 96H 60 dB A 2 11 Static pressure curve MTA1 76...

Page 25: ...01 14 MTA1 96 3 Installation 3 1 Installating indoor units As the following picture when install the indoor unit select the enough solid and level site with enough space for installation and maintanc...

Page 26: ...the pendant bolts firmly and reliably in light of the specifice situsation The pendant bolt hole figure is as following picture When the pandant bolt is fixed in wooden structure please put rectangla...

Page 27: ...rs Int order to prevent air flow shoting do not set the air inlet orifice near the air outlet orifice Install a filter at an easy to maintain place such as intake pipe If without the filter the duct w...

Page 28: ...e duct manual 17 View of top side View of air inlet side All pipelines must be connected closely and soundly without leak of air The pipelines must be adiabatic and free from condensation The key poin...

Page 29: ...door unit If miscellaneous articles are piled around the outdoor unit such articles must be 400mm below the top of outdoor unit Top view of the outdoor unit single unit installed Top view of the outdo...

Page 30: ...n bolt is shown in following figure Snow protection facilities must be installed in the snowfall areas If the snow protection facilities are incomplete faults may occur In order to prevent influence c...

Page 31: ...as side mm Liquid side mm MONB 76H 9 52 19 0 MONB 76C 9 52 19 0 MONB 96H 9 52 19 0 MONB 96C 9 52 19 0 Allowed length of refrigerant pipe and height difference Allowed value Max Actual length of pipe 5...

Page 32: ...or unit liquid pipe joint of system A and B at the same time it must be fixed horizontally In the process of installing the connective pipe do not let the air dust water or foreign substance intrude i...

Page 33: ...eplenish compressed niltrogen to perform airtight test The test is performed by using the compressed niltrogen 2 94MPa 30kg cm2 g Tighten the spool of the gas valve and liquid valve before compressing...

Page 34: ...square head cover of valves A and B completely Use refrigerant tank to expel air Screw up the pipe nuts at A B C and D completely Loosen and remove the square head cover and the maintenance orifice nu...

Page 35: ...extracting air for over 15 minutes and check whether the multimeter points at 1 0 10Pa 76cmHg Loosen and remove the square head cover of valves A and B After opening valves A and B completely tighten...

Page 36: ...ble to retention of the refrigerant In case frequent ventilation is impossible please install the leakage detection alarm device linked with the mechanical ventilation device Use heat resistant materi...

Page 37: ...0mm or thicker adiabatic wool 16 20kg m2 to the refrigerant pipe and the drain pipe in addition to apply the general heat insulation materials Enough heat insulation materials should also be applied t...

Page 38: ...stipulated power supply specifications No joint of wires is allowed Indoor units Outdoor units Power 220 240V 50Hz 1Ph 380 415V 50Hz 3Ph Switch capacity of the main power supply fuse A 15 10 40 32 Si...

Page 39: ...Cooling only units electric wire diagram Pay attention to the phase sequence of the power supply If the phase sequence is reversed the compressor will not start Meanwhile the indicator of outdoor ele...

Page 40: ...ust be installed in a location suitable for transmitting the signals of the remote controller to the indoor unit Use the remote controller or wired controller to let the unit run in the cooling mode I...

Page 41: ...l be distributed unevenly In the case the interior of the indoor unit must be cleaned The cleaning units must be performed by professional maintainers This phenomenon may also occur when the air condi...

Page 42: ...oreign substance or moist enters the air conditioner or other exceptions occur If the air conditioner fails but does not meet the foregoing phenomena obviously check the system in the following proced...

Page 43: ...Symptom Possible causes Way of handing The cooling effect is poor The refrigerant is excessive or deficient Detect leak and fill the refrigerant of a correct quantity Air or non condensable gas exist...

Page 44: ...ay disappears Check whether the time set on the time has expired When it comes to the set time of starting operation of the air conditioner the air conditioner will start running automatically and the...

Page 45: ...Timer lamp flashing at 5Hz T1 room temperature sensor fault of open circuit short circuit Operation lamp flashing at 5Hz T2 pipe temperature sensor fault of open circuit short circuit Defrosting lamp...

Page 46: ...ration lamp flashing at 5Hz Defrosting lamp flashing at 5Hz For these series products if the condenser temperature sensor malfunction is displayed it is enough to check whether wiring has problem If t...

Page 47: ...hour 3 System low pressure protection 4 Auto reset after eliminate error Manual reset 3 times protect within 1 hour 4 Current overload protection 6 Auto reset after eliminate error 6 Note Continuously...

Page 48: ...MCAC RTSM 201301 01 Midea R22 T1 side discharge duct manual 37 Ambient temperature sensor error Condenser temperature sensor error High temperature protection of condenser...

Page 49: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 38 System high pressure protection...

Page 50: ...MCAC RTSM 201301 01 Midea R22 T1 side discharge duct manual 39 Discharge temperature protection...

Page 51: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 40 System low pressure protection Current overload protection...

Page 52: ...Operation required before leaving the unit idle for a long period Let the air conditioner run in the fan mode for about half a day and let its interior be fully dry Switch off the power by the button...

Page 53: ...duct and move away Move away 4 pieces of M8 screws from the front board of air conditioner Support the bottom of the fan motor assembly by hand and then push it up It needs two persons to do When the...

Page 54: ...ssembly to make the pin through the hole One person supports the bottom of fan motor assembly another one fixes the M8 screws to make the fan motor assembly fixed on the front board Connect the wires...

Page 55: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 44 6 Exploded view MTA1 76HR...

Page 56: ...201270900011 8 Right cover ass y 1 201270900031 19 Drainage pan ass y 1 201270900024 9 Fan mounting plate ass y 2 201270900018 20 Evaporator left seal plate ass y 1 201270900014 10 Front panel ass y 1...

Page 57: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 46 MONB 76H...

Page 58: ...2300850045 14 Compressor 2 201400400900 4 3 Power transformer 1 202300930238 16 Bottom panel ass y 1 201295100613 4 4 E box 1 201248900037 17 Outlet grille 2 201148700017 4 5 Wire joint 1 202301450130...

Page 59: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 48 MTA1 96HR...

Page 60: ...t cover ass y 1 201270900031 19 Drainage pan ass y 1 201270900024 9 Fan mounting plate ass y 2 201270900018 20 Evaporator left seal plate ass y 1 201270900014 10 Front panel ass y 1 201270900034 21 Ev...

Page 61: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 50 MONB 96H...

Page 62: ...0017 4 4 E box 1 201248900037 18 Motor bracket ass y 1 201295100580 4 5 Wire joint 1 202301450130 19 Front panel 1 201243900048 4 6 Wire joint 1 202301450133 20 Rear vertical panel 1 201248900016 4 7...

Page 63: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 52 MTA1 76CR...

Page 64: ...201270900011 8 Right cover ass y 1 201270900031 19 Drainage pan ass y 1 201270900024 9 Fan mounting plate ass y 2 201270900018 20 Evaporator left seal plate ass y 1 201270900014 10 Front panel ass y 1...

Page 65: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 54 MONB 76C...

Page 66: ...scharge pipe ass y II 1 201675990431 4 4 E box 1 201248900037 18 Discharge pipe ass y I 1 201675990434 4 5 Wire joint 1 202301450130 19 Compressor 2 201400400900 4 6 Wire joint 1 202301450133 20 Brack...

Page 67: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 56 MTA1 96CR...

Page 68: ...270900011 8 Right cover ass y 1 201270900031 19 Drainage pan ass y 1 201270900024 9 Fan mounting plate ass y 2 201270900018 20 Evaporator left seal plate ass y 1 201270900014 10 Front panel ass y 1 20...

Page 69: ...Midea R22 T1 side discharge duct manual MCAC RTSM 201301 01 58 MONB 96C...

Page 70: ...ipe ass y II 1 201675990431 4 4 E box 1 201248900037 18 Discharge pipe ass y I 1 201675990434 4 5 Wire joint 1 202301450130 19 Compressor 2 201400400880 4 6 Wire joint 1 202301450133 20 Bracket ass y...

Page 71: ...cover 1 Install receiving box subassembly Receiving installing box 1 Install receiving box subassembly Installing spring 1 Install receiving box subassembly Installation chart 1 Install receiving box...

Page 72: ...a mode is selected in a sequence that goes from AUTO COOL DRY HEAT and FAN as the following figure indicates SWING Button Push this switch button to change the louver angle RESET Button When the RESET...

Page 73: ...r to adjust the TIMER in a clockwise direction VENT Button Push this button to set the ventilating mode The ventilating mode will operate in the following sequence Notes Ventilation function is availa...

Page 74: ...own on the display panel 8 4 Operating the remote controller 1 Install Replace Batteries The Remote Controller uses two alkaline dry batteries R03 Ir03X2 To install batteries slide back the cover of t...

Page 75: ...y sensing the difference between the actual ambient room temperature and the set temperature on the remote controller 2 If the AUTO mode is not comfortable for you the desired mode can be selected man...

Page 76: ...RT time After setting the TIMER there will be a one half second delay before the remote controller transmits the signal to the Air Conditioner Then after approximately another 2 seconds the set temper...

Page 77: ...set the time you want to stop the operation After setting the TIMER there will be a one half second delay before the remote controller transmits the signal to the Air Conditioner Then after approximat...

Page 78: ...ons Model KJR 10B DB T E Power Supply Voltage 5 0V DC Ambient Temperature Range 15 C 43 C Ambient Humidity Range RH40 RH90 Performance Features 1 Operating mode Cool heat dry fan and auto 2 Set the mo...

Page 79: ...rs When the setting time is over 10 hours each time push the button the time moves forward by 1 hour If want to cancel the timer off then adjust the time of timer off as 0 0 CLOCK button Normally disp...

Page 80: ...f press and hold on it will increase at 1 degree per 0 5 second TEMP button Set indoor temperature down If press and hold on it will decrease at 1 degree per 0 5 second SWING button Push this button f...

Page 81: ...y When the calculated operating time reaches the setting filter cleaning time the filter cleaning icon will be lighted up to remind the user to clean the filter screen After cleaning filter the user c...

Page 82: ...es The ECONOMICAL button is available at the auto operation mode 2 COOL HEAT FAN ONLY Operation Push the MODE button to select any one of COOL DRY HEAT or FAN ONLY mode Select the desired temperature...

Page 83: ...enters into the setting of timer off Push button TIME OFF again and then adjust the time of timer off as desired Continuously push the button the time of timer will increase 0 5 hours per time After t...

Page 84: ...in following list cannot meet the user s request the user can select the function for setting follow the below method First code Y First code function Second code X 0 1 2 3 4 0 Cooling only Cooling a...

Page 85: ...Under this interface it will not respond any key operation 11 Indoor unit address setting and query Long press the LOCK key for 5 seconds enter into the indoor unit address setting interface After en...

Page 86: ...uit of wired controller is low voltage circuit Never connect it with a standard 220V 380V circuit or put it into a same wiring tube with the circuit The shield cable must be connected stable to the gr...

Page 87: ...joint extrudes out of the wired controller back cover Adjust the bottom of the wired controller board to the wired controller back cover which should be fixed first then press the other end of the wi...

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