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Air Conditioner Service Manual 

 

28

 

10. Installation manual 

10.1 Installation Details

 

Connecting pipe length 

 

Model 

Pipe size(Inch) 

Liquid 

Gas 

FMA-18I2HD/DVO

 

1/4 

3/8 

FMA-27I3HD/DVO

 

1/4 

3/8 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Mode 

Standard length: m 

Refrigerant piping 

Max. length: m 

A 

Additional refrigerant 

B

Calculation: ×g=

B

g/m(A-5m) 

FMA-18I2HD/DVO

 

5.0 

2

5 

15g/m 

FMA-27I3HD/DVO

 

5.0 

2

5 

15g/m 

Connecting cables

 

The power cord should be selected according to the following specifications sheet. 

Appliance Amps 

Wire Size 

5 

AWG21/0.75 mm2 

10 

AWG18/1.0 mm2 

13 

AWG15 /1. 5 mm2 

18 

AWG14/1.6 mm2 

25 

AWG12/2.0 mm2 

30 

AWG10/2.5 mm2 

 
 
 
 

H

ei

ght should be 

less than10m   

Indoor uint 

Out

door uint 

Pipe lenght is 

25 meters Max

H

ei

ght should be 

less than10m   

Pipe lenght is 

25 meters Max

Out

door uint 

Indoor uint 

Содержание Free Match FMA-18I2HD/DVO

Страница 1: ...oner Service Manual Models FMA 18I2HD DVO FMA 27I3HD DVO CONTENTS 1 Important Notice 2 3 Product Dimensions 4 Refrigeration cycle diagram 5 Operation details 6 Wiring diagram 7 Explosion view and parts 8 Precaution 9 Names of parts 10 Installation Trouble shooting ...

Страница 2: ...ble for the interpretation of this information nor can it assume any liability in connection with its use The information specifications and parameter are subject to change due to technical modification or improvement without any prior notice The accurate specifications are presented on the nameplate label How to order spare parts To have your order filled promptly and correctly please furnish the...

Страница 3: ...odel A B C TAC 09CHSD XA41 I 777 250 205 TAC 12CHSD XA41 I 777 250 205 Cassette type 580 19 620 3 04 580 124 64 144 293 50 113 95 255 45 Duct type Model A B C D E F G H I J 7 9 12K 700 447 200 570 172 510 140 738 298 158 18K 920 447 200 790 172 730 140 958 298 158 A H F I J B E C G D ...

Страница 4: ...Air Conditioner Service Manual 4 Outdoor Unit Model Outdoor unit D E F G H I J K FMA 18I2HD DVO 780 605 290 521 360 327 5 55 56 FMA 27I3HD DVO 655 623 374 61 56 900 315 347 ...

Страница 5: ...Air Conditioner Service Manual 4 4 Refrigeration cycle diagram TIN1 PMV1 TIN2 TIN3 PMV2 PMV3 PMV4 TIN4 T2B1 T2B2 T2B3 T2B4 ST CONDENSER liquid storage pot T3 T4 TP HP COMPRESSOR Optional Evaporator ...

Страница 6: ...thin 10 seconds the remote controller is preset as Heat Pump automatically LOCK UNLOCK When you press the buttons MODE and TIMER at the same time the remote controller will be locked all buttons of the remote controller will be deactive and it displays Lo You can operate again as the same way to unlock the remote controller 8 DISPLAY button In cooling mode press this button the unit will give the ...

Страница 7: ...error code 6 Condenser temperature protection When condenser temperature 65 and keep 10s the air conditioner will shut down and show error code and recover while condenser temperature 52 and the compressor stop for 3minutes 7 IPM module protection IPM module has high temperature over current protection itself if there is signal feedback to IPM the outdoor unit will shut down LED on outdoor PCB wil...

Страница 8: ...ess than 2 the controller will shut down compressor and show error code while the ambient temperature is over 1 the compressor will run automatically 3 Auto fan control in cooling mode In cooling mode include cooling in Feel mode fan speed is determined by δt as the following diagram 4 DRY Mode Operation 1 The system for DRY operation used the same refrigerant circle as the cooling one 2 When the ...

Страница 9: ...onds and cut off for 30seconds later than compressor 5 Defrosting Defrosting is controlled by the microprocessor When the unit operate 30 minutes accumulated and the compressor operation more than 3 minutes continuously one of the following conditions is satisfied unit comes into defrosting a When FrostDeg 5 and OPT 5 the 2 times defrosting interval time is 45 minutes b When 10 FrostDeg 5 and OPT ...

Страница 10: ...f defrosting indoor fan motor speed is the same as Cold Air Prevention Control While one of the following conditions is satisfied unit comes out of defrosting and shifts to heating mode a Outdoor coil Temperature OPT 5 and keeps 30 seconds b Outdoor coil Temperature OPT 10 and keeps 2 seconds c Continue 11minutes defrost Operation 5 Indoor exchanger overheat protection When Indoor exchanger Temper...

Страница 11: ...function 1 Pulling the air con s plug out of socket 2 Pressing and holding the Emergency button ON OFF on the indoor then insert the plug into the socket again 3 Keep pressing the Emergency button for more than 10 seconds until three short beeps heard the Auto restart function been activated 4 When the unit in operation press the timer button 10 times in 8s the Auto restart function will be active...

Страница 12: ...tdoor EEPROM fault EE 19 Temp switch fault on top of the compressor EP 8 Voltage sensor fault EU 12 Outlet temperature sensor A fault Ey 47 Outlet temperature sensor B fault 48 Inlet temperature sensor A fault En 51 Inlet temperature sensor B fault 52 Protection display code list light off flash Outdoor failure display Protection Type Indoor LED Code CASSETTE Outdoor light blink time n LED1 LED2 L...

Страница 13: ...protection 2 Over voltage lower voltage 3 Overcurrent 4 Exhaust over temperature protection 5 Outdoor coil over temperature protection 6 Drive fault and protection V1 VP1 7 Communication fault with indoor unit 8 Compressor overheat fault compressor top switch 9 Short circuit open circuit fault of outdoor temperature sensor 10 Short circuit open circuit fault of outdoor heat exchanger temperature s...

Страница 14: ...Air Conditioner Service Manual 13 6 Wiring diagram INDOOR UNIT Wall split type Cassette Duct type ...

Страница 15: ...Air Conditioner Service Manual 14 OUTDOOR UNIT ONE TO 2 TYPE ONE TO 3TYPE ...

Страница 16: ...Air Conditioner Service Manual 15 ONE TO 4 TYPE ...

Страница 17: ...Air Conditioner Service Manual 16 7 Explosion view and parts WALL SPLIT TYPE TAC 09CHSD XA41 I TAC 12CHSD XA41 I INDOOR UNIT 20 21 23 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 22 18 24 19 ...

Страница 18: ...isplay PCB Box 1 12 210901127S Display PCB 1 13 210746792B Front Panel 1 14 210737654 Electrical Box Cover 1 15 210900478A Terminal 1 16 210736832 Cable Clamp 1 17 210901628F Main PCB 1 18 210736831 Electrical Box 1 19 210900333 Indoor Sensor Assembly 1 20 1170030067G Indoor Motor 1 21 210737653 Indoor Motor Cover 1 22 210737091 Drainage Hose 1 23 1170020011 Vane Motor 1 24 210736813 In And Out Pi...

Страница 19: ... PCB Box 1 12 210901127S Display PCB 1 13 210746792B Front Panel 1 14 210737654 Electrical Box Cover 1 15 210900478A Terminal 1 16 210736832 Cable Clamp 1 17 210901628F Main PCB 1 18 210736831 Electrical Box 1 19 210900333 Indoor Sensor Assembly 1 20 1170030067G Indoor Motor 1 21 210737653 Indoor Motor Cover 1 22 210737091 Drainage Hose 1 23 1170020011 Vane Motor 1 24 210736813 In And Out Pipe Fix...

Страница 20: ...Air Conditioner Service Manual 19 OUTDOOR UNIT FMA 18I2HD DVO FMA 27I3HD DVO 10 11 12 8 9 7 6 5 17 13 14 16 15 19 18 20 21 23 4 3 2 1 22 24 ...

Страница 21: ...886 4 way valve assembly 1 13 210800281 Base 1 14 210800252C Right plate 1 15 231202639 Two way valve 2 16 230802035 Valve supporter 1 17 3120120048 Three way valve 2 18 1070350971 Electrical box cover 1 19 230701494 Cable clamp 1 20 210902046 Terminal 1 210900477A Terminal 1 21 210902075B Outdoor PCB assembly 1 22 210902017 Inductor 1 23 211241884 Electronic expand valve assembly 1 24 210838100 P...

Страница 22: ... 12 211241953 4 way valve assembly 1 13 234101797 Base 1 14 230803016 Right plate 1 15 231202639 Two way valve 3 16 3087170101 Valve supporter 1 17 3120120048 Three way valve 3 18 230700661 Electrical box cover 1 19 210735991 Cable clamp 1 230701493 Cable clamp 1 20 210900477A Terminal 1 210902046 Terminal 1 21 210902075A Outdoor PCB assembly 1 22 1170190004 Inductor 1 23 211241976 Electronic expa...

Страница 23: ...ring in accordance with the wiring rules The air conditioner must be installed by professional or qualified persons Do not install the appliance at a distance of less than 50 cm from inflammable substances alcohol etc Or from pressurized containers e g spray cans If the appliance is used in areas without the possibility of ventilation precautions must be taken to prevent any leaks of refrigerant g...

Страница 24: ...at it is earthed in accordance with current legislation and insert a thermomagnetic circuit breaker The batteries in remote controller must be recycled or disposed of properly Disposal of Scrap Batteries Please discard the batteries as sorted municipal waste at the accessible collection point Never remain directly exposed to the flow of cold air for a long time The direct and prolonged exposition ...

Страница 25: ... children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Do not climb onto or place any heavy or hot objects on top of the appliance Do not leave windows or doors open for long when the air conditioner is operating Do not direct t...

Страница 26: ...l 2 Air filter 3 Special filter option 4 Display PCB 5 Vertical vane 6 Horizontal vane 7 Remote controller Outdoor unit No Name 8 Air outlet grille 9 Electronic box cover 10 2 way valve 11 3 way valve No Name 1 Power 2 Sleep 3 Temperature display 4 Timer 5 Run 1 2 3 4 6 5 7 INDOOR UNIT 8 9 10 11 OUTDOOR UNIT ...

Страница 27: ...LIGHTING ON Timer indicator Operation indicator PRE DEF indicator Pum p indicator INFRARED SIGNAL RECEIVER O Nwhen preset time fo r switching ON OFF the unit ONwhen the unit is power o n ON when the water level is high ON when the unit prevent cool air flowing in room Timer indica tor Ope ration indicat or PRE D EF indic ator Pum p indicator ...

Страница 28: ...tioner Service Manual 27 Duct type 1 2 3 4 5 6 7 8 12 11 10 Outdoor Unit 9 10 12 11 6 7 8 5 9 Indoor Unit 13 13 DISPLAY Manual Sw itch Nixie tube Running light Timing light Defrosting preheat light warning light ...

Страница 29: ...culation g Bg m A 5m FMA 18I2HD DVO 5 0 25 15g m FMA 27I3HD DVO 5 0 25 15g m Connecting cables The power cord should be selected according to the following specifications sheet Appliance Amps Wire Size 5 AWG21 0 75 mm2 10 AWG18 1 0 mm2 13 AWG15 1 5 mm2 18 AWG14 1 6 mm2 25 AWG12 2 0 mm2 30 AWG10 2 5 mm2 Height should be less than10m Indoor uint Outdoor uint Pipe lenght is 25 meters Max Height shoul...

Страница 30: ...location before hanging the unit if the opening on the ceiling has been decided Confirm sizes of the indoor unit and ceiling opening with the attached installation paper pattern Please fix the paper pattern below the body with M5X16 screws 4 Duct OUTDOOR UNIT Do not install the outdoor unit near sources of heat steam or flammable gas Do not install the unit in too windy or dusty places Do not inst...

Страница 31: ... screw bolts Timber over thebeam Roof beam Hanging Screw Ceili ng B o lt For finished concrete bricks Install the hanging hook with expansible bolt into the concrete deep to 45 50mm to prevent loose New Concrete Bricks Inlaying or embedding the screw bolts Blade shape Slide insertion insertion Pipe hanging and embedding screw bolt Steel roof beam structure Install the supporting angle steel Overha...

Страница 32: ...canvas air conduit may avoid vibration of ceiling board as shown in figure below 10 2 2Drilling a hole in the wall for the piping 1 Decide where to drill the hole in the wall for the piping if necessary according to the position of the mounting plate 2 Install a flexible flange through the hole in the wall to keep the latter intact and clean The hole must slope downwards towards the exterior Note ...

Страница 33: ...oint When extending the rolled pipe straighten the pipe by unwinding it gently as shown in the picture 10 2 6Connections to the indoor unit 1 Remove the indoor unit pipe cap check that there is no debris inside 2 Insert the fare nut and create a flange at the extreme end of the connection pipe 3 Tighten the connections by using two wrenches working in opposite directions 10 2 7Indoor unit condense...

Страница 34: ...Connecting the pipe of outdoor unit Screw the flare nuts to the outdoor unit coupling with the same tightening procedures described for the indoor unit Note If the tightening torque is not sufficient there will probably be some leakage With excessive tightening torque there will also be some leakage as the flange could be damaged 10 2 10 Bleeding Air and humidity left inside the refrigerant circui...

Страница 35: ... The structure of ODU PCB ONE TO 2 TYPE Motor Communication Filter circuit for heavy current Switch power supply LP HP Communication Communication Sensor circuit Expansion valve 4 way valve Compressor driving Rectifying filtering circuit PFC EEPROM Switch power supply Communication LP HP ...

Страница 36: ...N6 2 if loose or not plugged in please connect again 2 Room temperature sensor IRT and Indoor pipe coil temperature sensor IPT damage short or broken Solution check the resistance of the sensor wall type R 25 5 kΩ cassette and duct type R 25 5 kΩ if short or broken please replace it Expansion valve Sensor circuit LP HP Motor Compressor driving Switch power supply Communication Filter circuit for h...

Страница 37: ...1 The indoor motor connection terminal loose or not plugged in Solution Check the connecter of indoor motor and slot CN3 and CN4 if loose or not plugged in please connect again 2 The indoor motor damage Solution Check and replace the motor 3 The indoor main PCB damage Solution Replace the indoor main PCB OK Fail ...

Страница 38: ...ce the outdoor PCB 11 3 4 Display E8 Reasons 1 Outdoor discharge pipe temp sensor connection terminal loose or not plugged in Solution Check the connecter of sensor and slot if loose or not plugged in please connect again 2 Outdoor pipe temp sensor damage Solution Check and replace the sensor 3 Outdoor PCB damage Solution Check and replace the outdoor PCB 11 3 5 Display E0 E5 Reason Indoor outdoor...

Страница 39: ...ltage is normal measure the voltage between the outdoor terminal 1 and N If the voltage change occurs between 0 12V change pulse voltage but there is no 24V please replace the outdoor PCB 4 If the 1 1A 1B 1C 1D N voltage is normal measure the voltage between the outdoor terminal 1 and N If the voltage has no change firstly replace the indoor main PCB If the fault remains unsolved replace the outdo...

Страница 40: ...utdoor PCB drive circuit damage Solution Re energize and check the protection code on display Firstly display P0 1 If this code is displayed when the compressor is started for several seconds or even not started check the compressor connection for correctness if no insert wrong replace outdoor PCB 2 Check if the outdoor module is tightly installed onto the radiating fins and if the silicone is app...

Страница 41: ...layed when the compressor is started for several seconds or even not started check the compressor connection for correctness if no insert wrong replace outdoor PCB 11 3 8 Display EU Reason Voltage sensor damage Solution Please replace outdoor PCB 11 3 9 Display EE Reason EEPROM fault Solution Shut down power supply and reenergize it if the fault remains there check the EEPROM installation if no pr...

Страница 42: ...heat exchange Check the refrigerant amount Check the installation condition Installation again P9 Use the remote operates the air conditioner Does compressor start up No Does the wire connects right No Connects wire again Yes Open Does low or high press valve opened Operates again after 3 Mins Yes Yes No Compressor star up Yes Does indoor unit LED display error code Normal No Replace the inverter ...

Страница 43: ...ad wire on PWB Replace PWB Cooling mode Check compressor Modify compressor terminal marking Replace PWB Does compressor rotates Replace compressor Check indoor exchange sensor and discharge sensor Modify or replace the sensor Check outdoor exchange sensor and discharge sensor Modify or replace the sensor Check indoor heat exchange Check outdoor heat exchange Clean indoor heat exchange Clean outdoo...

Страница 44: ...ink Check terminal L N voltage Yes OK No OK Check the rectifier bridge fast recovery diode FRD and IGBT Solve as E0 Check wire connected and replace indoor PCB Normal Abnormal Replace PFC board or outdoor PCB assembly Test the DC voltage between DC and DC Damage Normal If the voltage is approx 300V If the voltage is approx zero Replace power supply board or outdoor PCB assembly Replace PFC board o...

Страница 45: ... 765 14 27 567 4 219 31 3 981 2 192 76 0 895 0 746 13 26 239 4 186 32 3 836 2 146 77 0 869 0 728 12 24 984 4 152 33 3 697 2 101 78 0 843 0 710 11 23 795 4 117 34 3 563 2 057 79 0 819 0 692 10 22 671 4 082 35 3 435 2 012 80 0 795 0 675 9 21 606 4 045 36 3 313 1 969 81 0 773 0 658 8 20 598 4 008 37 3 195 1 926 82 0 751 0 641 7 19 644 3 969 38 3 082 1 883 83 0 729 0 625 6 18 732 3 930 39 2 974 1 842 ...

Страница 46: ... 79 15 34 86 1 985 2 047 2 109 21 170 7 192 5 217 33 13 25 14 18 15 17 87 1 922 1 983 2 045 20 161 6 182 1 205 34 12 72 13 6 14 54 88 1 861 1 922 1 983 19 153 1 172 3 193 7 35 12 21 13 05 13 93 89 1 802 1 862 1 923 18 145 163 1 183 2 36 11 72 12 52 13 36 90 1 746 1 805 1 865 17 137 5 154 4 173 2 37 11 26 12 01 12 81 91 1 692 1 75 1 809 16 130 3 146 2 163 9 38 10 82 11 53 12 29 92 1 639 1 697 1 755...

Страница 47: ... 117 0 7837 0 8233 0 8641 10 36 04 39 39 43 01 64 4 101 4 288 4 479 118 0 7623 0 8012 0 8413 11 34 42 37 59 41 65 3 961 4 139 4 32 119 0 7415 0 7798 0 8193 12 32 89 35 87 39 1 66 3 827 3 995 4 167 120 13 31 43 34 25 37 29 67 3 698 3 858 4 021 121 0 702 0 7386 0 7773 14 30 04 32 71 35 58 68 122 0 6631 0 7195 0 7572 15 29 72 31 24 33 95 69 123 0 6649 0 7007 0 7378 16 70 3 339 3 476 3 616 124 0 6472 ...

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