Haier MVAH018MV2AA Service Manual Download | Manualshive

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Piping diagram

TC2

EEV

Liquid pipe

Gas pipe

TC1

Fan

TA

Filter

Filter

Indoor heat exchanger

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Summary of Contents for MVAH018MV2AA

Page 1: ...SYJS 07 2017 REV A Edition 2017 07 Constant Air Volume Duct Service Manual ...

Page 2: ...es 11 8 Sound pressure level 14 9 Installation 15 9 1 Parts and functions 15 9 2 Safety 15 9 3 Maintenance 18 9 4 Fault checkup 19 9 5 Installation procedures 20 9 6 Electrical wiring 28 10 PCB Photo 31 11 Dip switch setting 33 11 1 0151800244 PCB 33 11 2 0151800227A PCB 34 12 Indoor unit control 35 13 Failure code 38 14 Troubleshooting 39 15 Capacity 45 ...

Page 3: ...ciency and 0 200Pa auto adjusted ESP Capacity from 2 2kW to 16kW suitable for variable demands Built in high lift drain pump Pre set filter and fresh air inlet to improve indoor air quality Only 280mm thickness makes it possible for installation in limited spaces ...

Page 4: ...15 864 786 720 626 1190 1077 990 864 720 Max External Static Pressure in W G Pa 0 80 200 0 80 200 0 80 200 Indoor Sound Level dB Turbo High Med Low Quiet 45 40 38 36 32 41 38 35 33 30 44 42 40 38 34 Dimension Height in mm 11 280 11 280 11 280 Dimension Width in mm 29 1 2 750 37 3 8 950 37 3 8 950 Dimension Depth in mm 25 635 25 635 25 635 Weight Ship Net lbs kg 75 63 9 34 29 86 75 39 34 86 75 39 3...

Page 5: ...8 1448 1250 1110 958 825 Max External Static Pressure in W G Pa 0 80 200 0 80 200 0 80 200 Indoor Sound Level dB Turbo High Med Low Quiet 46 43 41 39 35 47 44 42 40 36 49 46 44 41 37 Dimension Height in mm 11 280 11 280 11 280 Dimension Width in mm 53 7 8 1370 53 7 8 1370 53 7 8 1370 Dimension Depth in mm 29 1 8 740 29 1 8 740 29 1 8 740 Weight Ship Net lbs kg 136 7 119 62 54 136 7 119 62 54 136 7...

Page 6: ...4 3 Dimension MVAH018MV2AA dimension 11 16 11 16 6 6 11 16 111 111 1 11 16 Air outlet 11 1 Unit inch mm ...

Page 7: ...e hole of drain pan Hanging bolt A B C1 C2 E D Wires connection hole Fresh air inlet Fresh air outlet F G 29 1 2 750 11 16 18 11 16 18 82 Electrical box 1 1 8 28 18 9 16 472 5 5 16 135 2 5 16 58 2 5 8 67 6 152 10 5 16 262 4 7 16 113 5 1 2 139 3 9 16 90 4 Ø3 16 4 Ø4 7 8 124 Ø6 11 16 170 44 Ø3 16 4 Ø6 11 16 170 18 3 8 467 25 635 1 3 16 30 20 1 16 510 18 9 16 471 4 1 8 105 9 13 16 250 6 7 8 175 11 28...

Page 8: ...2 64 2 1 2 64 9 1 4 235 15 16 23 5 7 8 21 5 55 1 4 1404 53 7 8 1368 11 16 18 11 16 18 3 1 4 82 1 1 8 28 7 1 8 180 20 7 8 530 47 1 4 1200 4 1 8 104 4 1 8 104 6 3 4 170 2 50 1 11 16 43 9 16 15 4 Φ3 16 4 Φ5 1 16 124 6 152 11 1 4 285 4 Φ3 16 4 5 1 2 139 Φ6 3 4 170 Φ6 3 4 170 4 1 2 113 29 1 16 738 1 3 16 30 72 5 8 1845 53 1845 18 7 16 468 16 405 16 405 11 280 9 7 8 250 18 3 8 467 1 3 16 30 3 9 16 90 2 ...

Page 9: ...7 4 Piping diagram TC2 EEV Liquid pipe Gas pipe TC1 Fan TA Filter Filter Indoor heat exchanger ...

Page 10: ...3 WH 4 C B A CN22 WH To PowerSupply Transmission To O D unit Wired Controller Room Card Float Switch Ambient Sensor Left Right Swing2 Up Down Swing1 Gas Pipe Sensor Liquid Pipe Sensor EEV PMV M DC Slim Duct Wiring Diagram BL 1 2 5 4 3 CN11 1 Up Down Dashed parts are optional 1 2 CN17 WH Colours B Black BL Blue Y Yellow G Green R Red WH White LED Definition t i n u r o o d n I r e l l o r t n o c d...

Page 11: ... 2 3 1 2 3 TC2 TC1 1 2 TA Ambient Sensor Gas PipeSensor Liquid Pipe Sensor CN18 CN19 CN20 Q Transmission To O D unit CN15 1 1 2 2 5 4 3 5 4 3 6 6 EEV PMV CN10 1PH 220 240V 208 230V 50 60Hz To Power Supply P 1 3 2 Float Switch 2 3 4 6 7 8 1 5 2 3 4 6 7 8 LED5 LED1 LED2 LED4 LED3 Power Supply Board Main Control Board WH WH WH WH WH WH B R R BL G B G R R LED1 2 LED3 4 LED5 LED Definition Wired contro...

Page 12: ...2AA 1 50 60 220 198 242 3 25 10 40 200 2 60 315 6 315 6 MVAH042MV2AA 1 50 60 220 198 242 3 25 10 40 200 2 60 315 6 315 6 MVAH048MV2AA 1 50 60 220 198 242 3 58 11 44 230 2 86 366 8 366 8 Symbols MCA Min circuit amps A MFA Max fuse amps of circuit breaker Output Fan motor rated output w FLA Full load amps A Notes 1 Voltage range The units are applicable for the electrical systems where voltage suppl...

Page 13: ...ow CFM Staticpressure IWC MVAH018MV2AA air flow and static pressure curves Super high High Mid Low Super low 300 350 400 450 500 550 600 650 700 750 800 850 900 0 00 0 08 0 16 0 24 0 32 0 40 0 48 0 56 0 64 0 72 0 80 0 88 Air flow CFM Staticpressure IWC MVAH024MV2AA air flow and static pressure curves Super high High Mid Low Super low ...

Page 14: ...8 Air flow CFM Staticpressure IWC MVAH030MV2AA air flow and static pressure curves Super high High Mid Low Super low 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 0 00 0 20 0 40 0 60 0 80 Air flow CFM Staticpressure IWC MVAH036MV2AA air flow and static pressure curves Super high High Mid Low Super low ...

Page 15: ...aticpressure IWC MVAH042MV2AA air flow and static pressure curves Super high High Mid Low Super low 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 0 00 0 20 0 40 0 60 0 80 Air flow CFM Staticpressure IWC MVAH048MV2AA air flow and static pressure curves Super high High Mid Low Super low ...

Page 16: ...evel dB Octave band sound pressure level dB Limit of audible continuous noise Limit of audible continuous noise Limit of audible continuous noise NC 60 NC 50 NC 40 NC 30 NC 20 NC 60 NC 50 NC 40 NC 30 NC 20 NC 60 NC 50 NC 40 NC 30 NC 20 H M L H M L H M L 8000 4000 2000 1000 500 250 125 63 63 63 63 63 63 63 63 70 60 50 40 30 20 10 MVAH036MV2AA Octave band center frequency HZ Octave band sound pressu...

Page 17: ...ents caused from wrong installation which is likely to lead to death or serious injury are listed in Warning However the matters listed in Attention are also likely cause the severe accidents In general both of them are the important items related to the security which should be strictly abided by After the installation perform test run to make sure everything is in normal conditions and then oper...

Page 18: ...ccompanied spare parts or specific parts If not water leakage electric shocks fire accidents or refrigerant leakage might be caused Don t drain the water from the drainpipe to the waterspout where may exist harmful gases such as sulfureted gas to avoid the harmful gases entering into the room During installation if refrigerant leakage occurs ventilation measures should be taken for the refrigerant...

Page 19: ...2 10 min During defrosting the fan of the indoor unit runs at a low speed or stops while that of the outdoor unit stops running Do not use water heater or like next to the indoor unit and the wired controller Water power leakage or short circuit may happen if the steam generating apparatus is working next to machine Use the fuse with proper capacity Metal wires and copper wires etc may cause fire ...

Page 20: ...re is no blockage in inlet port and outlet port of outdoor and indoor units The ground line and the wiring are in the proper state 2 After cleaning the air cleaner must be mounted 3 Switch on to the power After Operating Season 1 In sunny days blowing operation can be performed for half a day to make the inside of machine dry 2 Electrical power should be cut down to economize electricity or the ma...

Page 21: ...ating operation while other indoor units are in heating operation When the operator set it to the refrigerating or heating mode and the operation is opposite to the setting it displays the awaiting indication Sound in shutdown indoor unit or white steam or cold air To prevent oil and refrigerant from blocking the shutdown indoor units refrigerant flows in the short time and make the sounds of refr...

Page 22: ...ed the air can t be input from the suspended ceiling where the lengths of the piping between indoor units and outdoor units are within the allowable range refer to Installation of Outdoor Units where the distance of at least 1m between indoor units outdoor units mains supply connecting wires and television or radio should be kept as to avoid the image disturbance and noises of the above electrical...

Page 23: ...h the new ceiling use inlaid bolts embedded bolts or other parts provided on site Before proceeding the installation adjust the gap between the bolt and the ceiling 4 Installation of Indoor Units Fix the indoor unit with the hoisting stud If necessary the machine can be hanged on the beam with bolts instead of the hoisting stud NB When the sizes of the main unit don t match the hole on the ceiling...

Page 24: ...pe the general purpose hard PVC tube can be purchased at local shops During the connection insert the end of PVC tube into the wash port and fasten it with drainage hose and thread clip Binding agents shouldn t be used to connect the wash port and drainage hose Static Pressure Range 0 200 MVAH009 030MV2AA MVAH036 048MV2AA Unit in 20 8 drainp ipe 18 5 8 16 1 4 gasp ipe liquid pipe 18 3 8 18 3 8 16 ...

Page 25: ...ater bend was installed in the neighborhood of air conditioning A backwater bend was designed in the middle of drain pipe s shown as in the picture below a After finishing the electrical system test the drainage system b During testing make sure that the water flow passes the piping correctly without any water leakage at the connection c In the condition of new house test the drainage system befor...

Page 26: ...nection is needed between indoor units and air duct ESP should be lower than 200 Pa 6 Cautions in Installation of Air Return Pipe Exhaust Pipe It is recommended to use the blast pipes which can be anti condensation and absorb sound purchased at local shops Complete the installation of the blast pipes before fitting up the suspended ceiling Heat insulation should be made for the blast pipes The spe...

Page 27: ...se so we suggest use rear return installation 8 Concatenation means of exchanging flesh air F Size Model F in G in MVAH009 018MV2AA 26 7 7 8 MVAH024 030MV2AA 29 1 8 7 7 8 MVAH036 048MV2AA 50 3 8 9 2 8 Back air return opening 1 Cut away the nummular component of lateral board 3 Airproof the joint by airproof cingulum avoiding 2 Install the nummular air pipe air pipe can be purchased in local distri...

Page 28: ...ity of the exhaust fan and the strong wind and wind direction in the outer flue when the blowing quantity of the air conditioner exceeds the limits the drained water of the heat exchanger will overflow causing water leakage 11 Static Pressure GradeSetting 12 Refrigerant Tube Tubing Permissible Length Height Difference Piping Materials Heat Insulating Materials Please refer to the attached manual o...

Page 29: ... with vacuum pump Refrigerant sealed in indoor machine is not allowed to use for vacuumization Open all the valves of outdoor units NB oil balancing stop valve must be shut up completely when connected one main unit Check if there is any leakage at the connecting part and bonnet with hydrophone or soapsuds Connecting Procedures of Refrigerant Tubing Add the refrigerant according to the installatio...

Page 30: ...onnected to null wire while should be connected to the ground wire For the type with auxiliary electrically heating function the live wire and the null wire should not be misconnected or the surface of electrical heating body will be electrified If the power line is damaged replace it by the professional personnel of the manufacturer or service center The power line of indoor units should be arran...

Page 31: ...and so onin turn B One line control controls one indoor unit as shown in the above figure indoor unit 6 19 The indoor unitand the line control are connected via three lines with polarity C Two wired controller control one indoor unit as shown in the figure indoor unit 20 Either of the wired controller can be set to be the master wired controller while the other is set to be the auxiliary wired con...

Page 32: ... 0 1S or below The electrical power line and signal lines must be tightly Every indoor unit must have the ground connection The power line should be enlarged if it exceeds the permissible length Shielded lays of all the indoor and outdoor units should be connected together with the shielded lay at the side of signal lines of outdoor units grounded at one point Signal lines should not exceed 3280ft...

Page 33: ...31 10 PCB Photo SW03 SW01 LED2 LED1 LED3 LED4 LED5 LED6 LED7 PCB code 0151800244 used for the unit MVAH018MV2AA MVAH024MV2AA MVAH030MV2AA ...

Page 34: ...32 PCB code 0151800227A used for the unit MVAH036MV2AA MVAH042MV2AA MVAH048MV2AA Power supply board code 0151800311A used for the unit MVAH036MV2AA MVAH042MV2AA MVAH048MV2AA SW01 SW03 ...

Page 35: ...MV2AA A Definition and description of SW01 B Definition and description of SW03 Note 2 Set the address by dip switch when connecting the centralized controller or gateway or charge system Address of centralized controller communication address 0 or 64 SW03_ 2 OFF address of centralized controller communication address 0 communication address SW03_ 2 ON address of centralized controller communicati...

Page 36: ...n and description of SW01 B Definition and description of SW03 Note 2 Set the address by dip switch when connecting the centralized controller or gateway or charge system Address of centralized controller communication address 0 or 64 SW03_ 2 OFF address of centralized controller communication address 0 communication address SW03_ 2 ON address of centralized controller communication address 64 app...

Page 37: ...emote controller firstly judge the outdoor current mode If it is normal mode the indoor will run as the request of wired controller if it is abnormal mode the command can not be executed and indoor keeps stop wired controller displays standby mode if in remote control type the buzzer will sound twice and the remote controller can not receive the signal Until the outdoor stops or the outdoor mode i...

Page 38: ... inlet temp is higher over 1 C than the set temp 4 Unit stops or quit the heating mode 12 11 Filter cleaning Check and memorize the running time of indoor fan motor once arriving the requested time set by SW07 6 indoor will send filter cleaning signal to wired controller when indoor receives the filter reset signal from wired controller if the time exceeds the requested time the filter will reset ...

Page 39: ... chip is damaged Check if PCB is faulty if yes replace it Replace it Reconnect If wiring between P and Q is normal If communication wire is connected with multi outdoors Modify the wiring Modify the communication wire If indoor QTY connected with outdoor is normal Check outdoor connecting board if faulty replace it ...

Page 40: ...TC2 failure 05 5 Indoor EEPROM failure 06 6 Communication between indoor and outdoor failure 07 7 Communication between indoor and wired controller failure 08 8 Indoor float switch failure 09 9 Indoor address repeated failure 12 12 Indoor unit 50Hz zero crossing failure 13 13 DC motor model is wrong 14 14 DC motor failure 16 16 Communication between DC motor and PCB 18 18 The 4 way valve of 3 pipe...

Page 41: ... No No No No Reconnect If float switch works Modify the wiring and the circuit If CN4 is with AC220V voltage If water pump works Check indoor PCB and replace it if necessary Check water pump If water pump is electrified Modify the wiring and the circuit Replace water pump If sensor terminal is fixed well Reconnect If sensor resistor characteristic is proper Replace sensor Check if PCB is faulty if...

Page 42: ...o Yes If the port of CN15 on indoor PCB is normal If the port of CN19 on outdoor connecting board is normal If outdoor power source is normal If power supply is failure If there is noise Modify the communication wire Modify the port Electrify the outdoor Clear the failure code Check and eliminate noise Check outdoor PCB if faulty replace it ...

Page 43: ...on If there is indoor unit set as No 0 Set one indoor unit as No 0 Set only one indoor unit as No 0 Set one indoor unit as No 0 If there is indoor unit set as No 0 If there are multi indoors set as No 0 If indoor unit is running Check indoor PCB if faulty replace it If LED2 on indoor PCB is ON which indicate the serial signal sent to wired controller If LED1 on indoor PCB is ON which indicate the ...

Page 44: ...42 12 No 50Hz zero passage signal Check if the transformer is well Replace transformer Reconnect Replace PCB Yes Yes No No Check if the wiring of the wired controller connect well ...

Page 45: ...43 14 DC motor failure Check if the wiring of motor is fixed well If the motor is fault Reconnect Replace motor Replace the PCB No No Yes Yes ...

Page 46: ...e Replace the driver module If the pressure difference between high and low pressure less than 0 4Mpa before the failure occurs replace the inverter compressor Adjusting the running range Adjust it correctly by after sales personnel on site Adjust it correctly by after sales personnel on site Note abnormity confirmation conditions For MRVIII RC system the outdoor unit is running normally when the ...

Page 47: ... 17239 27380 16901 81 5 22648 16901 23324 17239 24338 16901 24676 17239 25352 17577 26028 17239 27042 16563 86 22648 16901 22986 17239 24000 16901 24338 16901 25014 17577 26028 16901 27042 16563 90 5 22310 16563 22648 17239 23662 16563 24338 16901 24676 17577 25690 16901 26704 16563 95 21972 16563 22648 16901 23662 16563 24000 16901 24338 17239 25352 16901 26366 16563 99 5 21972 16563 22310 16901 ...

Page 48: ...84 45024 32592 46704 31920 48384 30912 81 5 40320 31248 41328 31584 42672 31248 43680 31248 44688 32256 46368 31584 48048 30912 86 39984 30912 40992 31584 42336 30912 43344 31248 44016 32256 45696 31584 47376 30576 90 5 39648 30576 40320 31248 42000 30576 42672 30912 43680 31920 45360 31248 47040 30576 95 39312 30240 39984 31248 41664 30576 42000 30912 43008 31920 44352 31248 46704 30576 99 5 3864...

Page 49: ...A 5 18225 17888 17550 17550 14 20588 20250 20250 18563 23 23288 22950 20925 18563 32 25650 25313 20925 18563 36 5 27000 26663 20925 18563 42 8 27338 27000 20925 18563 43 7 28350 27000 20925 18563 50 30375 27000 20925 18563 54 5 32400 27000 20925 18563 59 9 32738 27000 20925 18563 MVAH030MV2AA 5 22780 22440 22100 22100 14 25840 25500 25160 23460 23 29240 28900 26520 23460 32 32300 31960 26520 23460...

Page 50: ...27520 MVAH042MV2AA 5 31444 31113 30782 30451 14 36077 35415 35085 32437 23 40380 40049 36739 32437 32 45014 44352 36739 32437 36 5 47000 46669 36739 32437 42 8 47662 47000 36739 32437 43 7 49648 47000 36739 32437 50 52958 47000 36739 32437 54 5 56268 47000 36739 32437 59 9 56930 47000 36739 32437 MVAH048MV2AA 5 36113 35775 35438 35100 14 41175 40838 40163 37125 23 46238 45900 42188 37125 32 51638 ...

Page 51: ...Haier Commercial Air Condition Web Http www haier com Haier reserves the right to make change without any notice ...

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