Cooper & Hunter FG20/C-M Service Manual Download Page 21

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COMMERCIAL AIR CONDITIONER

DUCT TYPE SPLIT AIR CONDITIONER

2.1 Cooling

OFF

cooling mode

compressor

outdoor fan

indoor fan

way

valve

time

turn off the

unit manually

turn on
the unit

When T

ambient

≥

setting

＋

1 , the unit starts cooling. I

℃

n that case, the compressor, the outdoor

fan and the indoor fan will run. The outdoor fan will run for 15s before the compressor runs.

When T

ambient

≤

setting

—1 , the unit stops cooling.

℃

In that case, the compressor, the outdoor

fan will stop running while the indoor fan will run. The outdoor fan will stop after the compressor
stops for 15s.

When T

ambient

＝

setting

, the compressor and the outdoor fan will remain the previous running

state and the indoor fan will run.

2.2 Dry Mode

compressor

outdoor fan

indoor fan

way

valve

OFF

turn on
the unit

time

OFF

turn off the

unit manually

OFF

dry mode

Summary of Contents for FG20/C-M

Page 1: ...Duct Type Split Air Conditioner Service Manual ooper Hunter International Corporation USA...

Page 2: ...2 5 Fan Mode 20 3 WIRELESS REMOTE CONTROLLER 20 3 1 Operation View 20 3 2 Display View 22 4 WIRED REMOTE CONTROLLER 24 4 1 Operation View 24 4 2 Display View 25 4 3 Dimension 26 4 4 Installation 26 5...

Page 3: ...h 43 MAINTENANCE 45 1 TROUBLE TABLE 45 2 FLOW CHART OF TROUBLESHOOTING 47 2 1 E1 Compressor High Pressure Protection 47 2 2 E3 Compressor Low Pressure Protection 48 2 3 E4 Compressor Discharge Temp Pr...

Page 4: ...COMMERCIAL AIR CONDITIONER DUCT TYPE SPLIT AIR CONDITIONER 1 PRODUCT...

Page 5: ...5 6 4 FG20 C M 19 5 5 5 R2 2 FGR25 C M 24 5 6 9 27 5 7 8 FG25 C M 24 5 6 9 R2 2 FGR30 C M 29 5 8 4 32 5 9 3 FG30 C M 29 5 8 4 R2 2 FGR40 C M 38 10 8 41 11 7 Duct Type FG40 C M 38 10 8 R2 2 Note 1Ton...

Page 6: ...Production method Self control omitted 380V 3Ph 50Hz M Power type The unit to be exported must be expressed Outdoor unit O Indoor unit I Indoor and outdoor unit code The entire unit is not expressed...

Page 7: ...n make the temperature and humidity of the whole room equality meanwhile it can lead in fresh air makes well indoor unit air quality All units are provided with filters that are easily accessible from...

Page 8: ...Height 500 673 500 673 500 673 Width 1500 1840 1500 1840 1500 1840 Dimensions Outline Package Depth mm 1000 1200 1000 1200 1000 1200 Weight Net Gross kg 150 200 150 200 150 200 System Operation Contro...

Page 9: ...5 24 5 29 5 Btu h Nominal Capacity At Rated ESP Heating kW Power Supply V Ph Hz 380 3 50 Cooling 8 5 10 2 12 1 Power Consumption Heating kW Cooling 15 8 18 9 21 8 Running Current Heating A Refrigerant...

Page 10: ...V Ph Hz 380 3 50 Compressor Type Scroll Nominal Current 12 21 15 27 15 5 L R A A 98 142 111 Vibration Isolator Rubber Compressor Protection Device Auto Reset Thermal Overload Fan Type Drive Inner Gro...

Page 11: ...ntrifugal Belt Drive CFM 4120 Air flow m3 h 7000 Input Power kW 2 2 Running Current A 4 2 in wg 0 60 Rated ESP Pa 150 Fan Motor Protection Overload protection Fan Sound Pressure Level H M L SL dB A 58...

Page 12: ...ction Device Auto Reset Thermal Overload Fan Type Drive Inner Groove Copper Tube Fan Speed rpm 730 Blade Material Plastic Fan Diameter mm 750 Tube Material Inner Groove Copper Tube Material Aluminum C...

Page 13: ...elt Drive CFM 4120 Air flow m3 h 7000 Input Power kW 2 2 Running Current A 4 2 in wg 0 60 Rated ESP Pa 150 Fan Motor Protection Overload protection Fan Sound Pressure Level H M L SL dB A 58 Material I...

Page 14: ...0 Tube Material Inner Groove Copper Tube Material Aluminum Coil Fin No of Rows FPI 2 14 Coil Area Sqm 2 71 Sound Pressure Level dB A 69 Height 1772 1950 Width 1290 1370 Dimension Outline Package Depth...

Page 15: ...AM 5 1 Cooling Only Name compressor 4 way valve Stop Valve Check Valve Capillary Filter Electronic Expansion Valve Sign Name Temperature Sensor Pressure Switch Heat Exchanger with Axial Flow Fan Heat...

Page 16: ...DUCT TYPE SPLIT AIR CONDITIONER PRODUCT 13 5 2 Heat Pump...

Page 17: ...DUCT TYPE SPLIT AIR CONDITIONER PRODUCT 14 Note FG R 40 C M has oil separator The electric expansion valve is connected with the throttle capillary...

Page 18: ...COMMERCIAL AIR CONDITIONER DUCT TYPE SPLIT AIR CONDITIONER 15 CONTROL...

Page 19: ...COMMERCIAL AIR CONDITIONER DUCT TYPE SPLIT AIR CONDITIONER 16 CONTROL 1 OPERATION FLOWCHART 1 1 Cooling Dry Operation...

Page 20: ...COMMERCIAL AIR CONDITIONER DUCT TYPE SPLIT AIR CONDITIONER 17 1 2 Heating Operation 2 MAIN LOGIC...

Page 21: ...The outdoor fan will run for 15s before the compressor runs When T ambient T setting 1 the unit stops cooling In that case the compressor the outdoor fan will stop running while the indoor fan will ru...

Page 22: ...ting 2 T ambient T setting 2 the compressor A and the outdoor fan A will repeat running for 6min and stopping for 4min while the compressor will remain the previous running state When T ambient T sett...

Page 23: ...osting Condition When the heating time accumulates to 44min and T condenser 5 lasts for 1min the unit will start defrosting In that case the selector valve the outdoor fan and auxiliary e heater will...

Page 24: ...rt or close unit 2 Mode button Press the button to select the mode cooling heating fan or auto mode 3 Increase Decrease button Press this button to increase decrease the setup temp 4 LCD Screen Displa...

Page 25: ...button to set swing function 2 Increase Decrease button Press this button to increase decrease the setup temp 3 Mode button Press the button to select the mode cooling heating fan or auto mode 4 ON OF...

Page 26: ...n description 1 Fan Speed auto fan speed low fan speed middle fan speed high fan speed 2 Run Mode Auto running Cool running Dry Running Fan Running Heat running Heat and Cool unit only 3 Setup temp Te...

Page 27: ...button to set sleep swing function 6 Timer button Press the button to set timer function 7 On off button Press the button to set start or close unit 8 Remote window Get remote information 9 LCD displ...

Page 28: ...an is off nothing displays 4 Set temp display Display set temp value its range is 16 30 5 Run mode display auto mode cool mode dry mode fan mode heat mode only cool and heat unit 6 Indoor temp display...

Page 29: ...7 No matter if surface mounting or concealed mounting is selected it is required to drill 2 holes in the same level which distance shall be the same as the distance 60mm of installation holes in the...

Page 30: ...agram of Installation No Name 1 Wall Surface 2 Bottom Plate of Wire Controller 3 Screw M4X10 4 Panel of Wire Controller Caution The communication distance between the main board and the wire controlle...

Page 31: ...it Up to 16 sets of units can be controlled simultaneously by the centralized controller not with week timer 5 1 2 Operation View NO Name Function description 1 ON button Press the button to set start...

Page 32: ...ek timing functions Up to 16 sets of units can be controlled simultaneously by the centralized controller weekly timer The weekly timer has the function of invalidating the lower unit The weekly timin...

Page 33: ...can set week part of time 4 CANCEL DELETE button short press cancel delete to back to default page or last process long press cancel delete to cancel timer of a certain time period in a certain day 5...

Page 34: ...displays on when set unit on on will display off when set unit off off will display 7 timer on time displays Display starts time 8 on control displays When set unit or group on it will display 9 off c...

Page 35: ...1 switch from right to left ON represents 0 while OFF represents 1 Example 1 The dial up value is 0111 Switch 1 2 3 should be on the opposite side of ON while switch 4 at ON position Example 2 The di...

Page 36: ...1 unit code 15 1110 unit code 16 1111 5 4 Control Wiring Design 16UnitsinMax Weektimer Wiredremotecontroller LCD LCD LC Wiredremotecontrolle Telephonewirebox Telephonewirebox Telephonewirebox Twisted...

Page 37: ...COMMERCIAL AIR CONDITIONER DUCT TYPE SPLIT AIR CONDITIONER 34 INSTALLATION...

Page 38: ...ing is not enough use angle iron sections to set up a beam support Place the unit at the beam and fix it 1 2 Installation Site 1 Ensure the top hanging piece has strong strength to withstand the weigh...

Page 39: ...1194 292 342 FG30 C M FGR30 C M 1560 910 1194 1194 292 342 b d a f e c mm Model a b c d e f FG40 C M FGR40 C M 1780 1040 868 1450 347 555 1 4 Installation Clearance Data Air supply Air return Suspend...

Page 40: ...irm conveying route and method of the unit to avoid damage to the unit and possible injuries For protection and safety of the unit it is recommended to convey the unit together with the packing contai...

Page 41: ...00 1772 A 880 840 C 2 B 2 844 2 Fig 27 Schematic of the Outdoor unit Don t connect any air leading duct to the outdoor unit at neither the air inlet nor the air outlet The outdoor unit will drop conde...

Page 42: ...and dimension of the unit Unit mm Model A B C FG R 30 C M O 990 787 337 FG R 40 C M O 1290 1160 850 2 4 Installation Clearance Data 1200 1000 1000 1000 3000 300 300 300 3 REFRIGERATION PIPING WORK 3...

Page 43: ...nt should be tightly connected when a pipe joint is employed between two pipes It is better to use only one connecting pipe if the distance is not far The pipes should not be shriveled when the pipes...

Page 44: ...em The air switch should have hot and magnetic auto turn off function to protect the system from overloading or short power Please accord to electrical diagram on the unit when connecting the wires 1...

Page 45: ...outdoor unit and indoor unit The power cord must be copper inside while the working temp can not be over its standard one If the total length of the power cord is over 15m please increase the size by...

Page 46: ...FGR25 C M I 380V 3Ph 50Hz 16 2 5 2 5 FGR30 C M I 380V 3Ph 50Hz 20 2 5 2 5 FGR40 C M I 380V 3Ph 50Hz 25 4 0 4 0 FG20 C M I 380V 3Ph 50Hz 10 1 0 1 0 FG25 C M I 380V 3Ph 50Hz 10 1 0 1 0 FG30 C M I 380V...

Page 47: ...DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE 44 MAINTENANCE...

Page 48: ...protection Compressor discharge temp sensor After the running of compressor if detect that discharge temp is higher that 130 in continuously 30s it is believed that there is high temp protection of di...

Page 49: ...ayed and the buzzer will beep F0 Indoor ambient temp sensor error Indoor ambient temp sensor If detect that AD value exceeds 250 short circuit with corresponding temp 160 or less than 5 open circuit w...

Page 50: ...DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE 47 2 FLOW CHART OF TROUBLESHOOTING 2 1 E1 Compressor High Pressure Protection...

Page 51: ...indoor unit have been set correctly Check if the refrigeration capacity of the system is too low Check if the filter and heat exchange fins of the outdoor unit are dirty or clogged Check if the capaci...

Page 52: ...DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE 49 2 3 E4 Compressor Discharge Temp Protection 2 4 E5 Overcurrent Protection Compressor Overloading Protection...

Page 53: ...nit connected correctly Is communication cable fluent Is communication cable of indoor and outdoor unit connected rightly Is there magnetic ring on both sides of the communication cable Confirm the di...

Page 54: ...main board of the indoor unit No No replace temperature sensor check the directions of the plug and socket Yes Overload of indoor fan Is wire of indoor fan connected rightly Connect the wire rightly I...

Page 55: ...nsor Error F4 Discharge Temperature Sensor Error yes no yes no yes Temperature sensor error Is the plug of temperature sensor connected correctly with the socket of the mainboard Is the resistance val...

Page 56: ...DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE 53 3 WIRING DIADRAM FGR20 C M I FGR25 C M I FGR30 C M I with e heater FGR30 C M I...

Page 57: ...DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE 54 FGR40 C M I FG20 C M I FG25 C M I FG30 C M I FG40 C M I...

Page 58: ...DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE 55 FGR20 C M O FGR25 C M O...

Page 59: ...DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE 56 FG20 C M O F G25 C M O...

Page 60: ...DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE 57 FGR30 C M O...

Page 61: ...DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE 58 FG30 C M O FGR40 C M O...

Page 62: ...DUCT TYPE SPLIT AIR CONDITIONER MAINTENANCE 59 FG40 C M O...

Page 63: ...lour of wire corresponding to the terminal when Removing the wire and the mixture can be avoided when recovering the wire connection 2 Cut off the connection between compressor and pipes Don t leave t...

Page 64: ...ce to circuit diagram and check if there is any leakage after welding Disassembly and Assembly of 4 way valve Remark Make sure that there isn t any refrigerant in pipe system and the power supply is c...

Page 65: ...cting pipe Don t leave welding slag inside pipes Disconnect the pipe site S in illustration of 4 way valve and connecting pipe Don t leave welding slag inside pipes Remove the 4 way valve Remove 4 way...

Page 66: ...letree 1 10549057 4 Fan Motor for indoor unit 1 15018303 5 Motor Fixed Board 1 01845309 6 Belt Pulley 1 10548148 7 Taper Sleeve 1 10548208 8 Condenser assy and evaporator assy 1 01025359 9 Right Side...

Page 67: ...1394921 23 back girder 1 01875330 24 place with a draught of Connection board 2 01375225 25 Fan Motor Sub assy 1 15705225 26 Left Side Plate Sub Assy 1 01315383 27 front girder 1 01779106 28 Electric...

Page 68: ...minal board 42011043 1 8 AC Contactor 44010213 1 9 Over Current Protector 46020122 1 10 Electric Box Assy 01395694 1 11 Collecting Gas Pipe Sub Assy 04675422 1 12 Inhalation Tube Sub Assy 04675424 1 1...

Page 69: ...7 valve support sub assy 01805386 1 28 compressor 00205245 1 29 retaining plate sub assy 01845233P 1 30 Inhalation Tube Sub Assy 04675423 1 31 clapboard sub assy 01245243 1 32 motor support sub assy 0...

Page 70: ...or unit 1 15018303 5 Motor Fixed Board 1 01845309 6 Belt Pulley 1 10548148 7 Taper Sleeve 1 10548208 8 Condenser assy and evaporator assy 1 01025359 9 Right Side Plate Sub Assy 1 1 01315319 10 overhau...

Page 71: ...01394921 23 back girder 1 01875330 24 Place with a draught of Connection board 2 01375225 25 Fan Motor Sub assy 1 15705225 26 Left Side Plate Sub Assy 1 01315383 27 front girder 1 01779106 28 Electri...

Page 72: ...213 1 9 Over Current Protector 46020122 1 10 Electric Box Assy 01395834 1 11 Collecting Gas Pipe Sub Assy 04675422 1 12 Inhalation Tube Sub Assy 04675424 1 13 LOW Pressure switch 4602001510 1 14 Front...

Page 73: ...or 00205245 1 28 retaining plate sub assy 01844120 1 29 Inhalation Tube Sub Assy 04675423 1 30 clapboard sub assy 01245243 1 31 motor support sub assy 01804174 1 32 Axial flow fan 10338701 2 33 fan mo...

Page 74: ...Board 1 01845223 6 Belt Pulley 1 10548150 7 Taper Sleeve 1 10548213 8 Condenser assy and evaporator assy 1 001025347 9 Right Side Plate Sub Assy 1 1 01315319 10 overhauling side 1 01545322 11 Belt SP...

Page 75: ...a draught of Connection board 2 01375225 25 Fan Motor Sub assy 1 15705225 26 Left Side Plate Sub Assy 1 01315383 27 front girder 1 01779106 28 Electric Fixed Plate 1 01339099 29 Main Board 1 30224206...

Page 76: ...plate sub assy 01315358P 1 18 4 way valve sub assy 04145327 1 19 4 way valve 430004061 1 20 4 way valve fittings 4300040043 1 21 electric expansion valve sub assy 07335255 1 22 collecting liquid pipe...

Page 77: ...SteelBar 1 01805367 3 rotate axletree 1 10549057 4 Fan Motor for indoor unit 1 15014805 5 Motor Fixed Board 1 01845223 6 Belt Pulley 1 10548150 7 Taper Sleeve 1 10548213 8 Condenser assy and evaporato...

Page 78: ...2 Electric Box 1 01394921 23 back girder 1 01875330 24 place with a draught of Connection board 2 01375225 25 Fan Motor Sub assy 1 15705225 26 Left Side Plate Sub Assy 1 01315383 27 front girder 1 017...

Page 79: ...oard 30224208 1 9 electric box assy 01395684 1 10 phase reverse protector 46020052 1 11 collecting gas pipe sub assy 04675415 1 12 inhalation tube sub assy 04675388 1 13 low pressure switch 460200157...

Page 80: ...00205247 1 28 retaining plate sub assy 01845224P 1 29 inhalation tube sub assy 04675387 1 30 clapboard sub assy 01245238 1 31 motor support sub assy 01805368 1 32 axial flow fan 10338701 2 33 fan mot...

Page 81: ...76318317 13 Hook 4 02205302 14 Side beam sub assy 1 01875302 15 Belt Pulley 2 SPA140 1 10548156 16 Taper Sleeve 2012 25 1 10548218 17 Right Side Plate 2 1 01309105 18 FrontPanel_OutsideMachine 1 0128...

Page 82: ...Twin Pair Signal Cable 1 40010232 38 measure staff 1 02169050 39 Filter Sub Assy 1 11129070 FGR30 C M O No Name Qty Product Code 1 Base Plate Sub Assy 1 01195230P 2 4 way Valve with coil 1 04145295 3...

Page 83: ...port 1 1 01804632 21 Support 3 1 01804634 22 Support plate 1 Electric Box 1 01894602 23 Support plate sub assy 1 1 01894607 24 Support plate 3 1 017987834 25 Supporting Strip 1 01894605 26 Supporting...

Page 84: ...38 4 Cut off Valve 1 07130127 5 Liquid valve sub assy 1 07109068 6 Discharge Tube 1 04615486 7 Compressor and Fittings 1 00100298 8 Gas liquid Separator 1 072290571 9 Inhalation Tube Sub Assy 1 046753...

Page 85: ...987834 25 Supporting Strip 1 01894605 26 Supporting Strip 1 01798808 27 Front plate 1 1 01538736 28 Front plate 2 1 01538734 29 Electric Box Cover 1 01419059 30 Electric Box 1 01395728 31 Base Frame S...

Page 86: ...b Assy 1 01265209 2 Retaining Plate Sub Assy 1 01845205 3 Return Air Frame Sub Assy 1 01375208P 4 Return Air Frame Sub Assy 1 01875208P 5 Evaporator Assy 1 01025335 6 Retaining Plate Sub Assy 1 018452...

Page 87: ...r Sleeve 1 10548218 23 Sheet Metal Piece 1 01805212P 24 Base Plate Sub Assy 1 01285222P 25 Electric Box Cover 1 01425304P 26 Electric Box Sub Assy 1 01395346 27 Air Outlet Frame 1 01375210P 28 Air Out...

Page 88: ...1 4 Motor Assy 1 15404601 5 Motor SW650A 1 15704601 6 Rear Panel 1 01544104P 7 Rear Lining Board Sub Assy 1 01264113P 8 Rear isolation sheet 1 22414101 9 Rear Strengthen Girder 1 01854102P 10 right Co...

Page 89: ...ate panel 1 01894104P 30 Front Lining Board Sub Assy 1 01264111P 31 Liquid by pass sub assy 1 04615396 32 Electric Expansion Valve Sub Assy 1 07335239 33 Discharge Tube Sub Assy 1 04635362 34 Oil Sepa...

Page 90: ...3P 8 Rear isolation sheet 1 22414101 9 Rear Strengthen Girder 1 01854102P 10 right Cover Plate 1 01264116P 11 Right Side Plate 1 01315344P 12 Condenser Assy 1 01125724 13 4 way Valve Sub Assy 0 041452...

Page 91: ...tric Expansion Valve Sub Assy 1 07335239 33 Discharge Tube Sub Assy 1 04635362 34 Oil Separator 1 07423202 35 oil Return Tube Sub Assy 1 04325340 36 Inhalation Tube Sub Assy 1 04675369 37 Left Side Pl...

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