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Cooper&Hunter CH-IRT05NM, Service Manual, Page: 1 / 110

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Cooper&Hunter CH-IRT05NM Service Manual Download Page 1

Thank you for choosing Cooper&Hunter rooftop package units, please read this s

ervice

 manual carefully before 

operation and retain it for future reference.

Models: 
C

H

-I

RT

05N

M

 

C

H

-I

RT

08N

M

 

C

H

-I

RT

15N

M

 

Service

 

manual

R

ooftop package units

 

ROOFTOP PACKAGE

 UN

IT

S

Summary of Contents for CH-IRT05NM

Page 1: ...oper Hunter rooftop package units please read this service manual carefully before operation and retain it for future reference Models CH IRT05NM CH IRT08NM CH IRT15NM Service manual Rooftop package units ROOFTOP PACKAGE UNITS ...

Page 2: ...18 4 1 SETTING OF FILTER CLEAN REMINDER FUNCTION 18 4 2 LOW TEMPERATURE DRYING FUNCTION 20 4 3 LOCK FUNCTION 20 4 4 MEMORY FUNCTION 21 4 5 MODBUS INTERFACE 21 4 6 SWITCH BETWEEN FAHRENHEIT AND CENTIGRADE 23 4 7 ENQUIRY OF AMBIENT TEMPERATURE 23 4 8 ENQUIRY OF HISTORICAL MALFUNCTION 24 4 9 DEBUGGING FUNCTION 24 5 INSTALLATION OF WIRED CONTROLLER 27 5 1 STANDARD ACCESSORIES 27 5 2 INSTALLATION POSIT...

Page 3: ... MAIN CONTROL MALFUNCTION 48 1 2 DESCRIPTION OF DRIVE MALFUNCTION 51 2 FLOW CHART OF TROUBLESHOOTING 53 2 1 TROUBLESHOOTING FLOW CHART OF MAIN CONTROL MALFUNCTION 53 2 2 TROUBLESHOOTING FLOW CHART OF DRIVE MALFUNCTION 60 3 WIRING DIAGRAM 64 4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS 66 4 1 Model CH IRT05NM 66 4 2 Model CH IRT08NM 77 4 3 Model CH IRT15NM 88 5 EXPLODED VIEWS AND SPARE PART L...

Page 4: ...Rooftop Packaged Service Manual PRODUCT 1 PRODUCT ...

Page 5: ...minal Capacit y Ton Model Power Supply V Ph Hz Appearance Refrigerant Model Name 5 R410A CH IRT05NM 380 415V 3Ph 50 60Hz 8 R410A CH IRT08NM 380 415V 3Ph 50 60Hz 15 R410A CH IRT15NM 380 415V 3Ph 50 60Hz Notes Above pictures may be different from actual model 1Ton 12000Btu h 3 517kW ...

Page 6: ... any landscaping This allows compact location on multi unit applications LOW OPERATING SOUND LEVEL The upward air flow carries the normal operating noise up and away from the living area The rigid and unique shock absorption structure greatly reduces the vibration and effectively isolates motor sound SPACE SAVING With compact and unitary structure the unit can be connected and assembled at field w...

Page 7: ... 0 2 50 0 28 70 0 4 100 COP Btu h W 11 90 10 75 11 80 Electrical Data Power Supply V PH Hz 380 415V 3PH 50 60Hz 380 415V 3PH 50 60Hz 380 415V 3PH 50 60Hz M C A A 8 2 13 6 20 5 Rated Power Input W 4550 7800 12500 Evaporator fan Type Centrifugal Centrifugal Centrifugal Quantity 1 1 2 Diameter inch 224 8 8 239 9 4 239 9 4 Drive Type Direct Direct Direct Motor output Hp 1 1 2 Motor rpm rpm 900 920 112...

Page 8: ...et kg lbs 300 661 5 537 1184 900 1984 Gross kg lbs 320 705 6 570 1257 950 2094 Filter PP Washable synthetic Washable synthetic Stuffing Quantity 20ft 40ft 40ft Hi 12 26 39 4 8 16 2 4 8 Notes The cooling capacity stated above is measured under following conditions Indoor Conditions 27 DB 19 WB 81 DB 67 WB Outdoor Conditions 35 DB 24 WB 95 DB 76 WB The air volume is measured at the relevant standard...

Page 9: ...r Motor Breaker Capacity Min Power Supply Cord Power Supply Qty RLA FLA FLA V Ph Hz A A A A mm2 CH IRT05NM 380 415 3 50 60 1 8 2 3 15 5 0 25 4 0 CH IRT08NM 380 415 3 50 60 2 13 6 3 15 5 0 32 6 0 CH IRT15NM 380 415 3 50 60 2 20 5 4 0 5 0 50 10 0 5 PIPING DIAGRAM Refrigerant flowing direction is shown as the arrow ...

Page 10: ...Rooftop Packaged Service Manual CONTROL 7 CONTROL ...

Page 11: ...TS CONTROL 1 OPERATION FLOWCHART 1 1 COOLING OPERATION Satisfying open Comp condition Temp of indoor Set temp Comp stop for 3 min N Y N Y Y N Open unit running at cool mode Indoor fan run Comp and outdoor fan run Comp and outdoor fan stop Power On ...

Page 12: ...Rooftop Packaged Service Manual CONTROL 9 1 2 HEATING OPERATION ...

Page 13: ...the unit will be turned on press it once more and the unit will be turned off When turning off the unit the Sleep function will be canceled but the presetting time is still remained MODE button By pressing this button Auto Cool Dry Fan Heat mode can be selected circularly Auto mode is default after power on Under the Auto mode the setting temperature will not be displayed Under the Heat mode the i...

Page 14: ...among those five directions Simplified SWING function applicable for some Fan Coil Units When the wireless remote controller is energized initially with the unit under the OFF status it should be set by pressing the button and the SWING button simultaneously with the symbol blinking twice Then after the unit is turned on this function can be activated by pressing the SWING button with the displaye...

Page 15: ...ture 5s later will back to display the ambient temperature This function is applicable to partial of models TIMER OFF button By pressing this button it is available to go to the TIMER OFF setting state with the same setting method as that of the TIMER ON in which case the OFF symbol blinks TURBO button In the Cool or Heat mode pressing this button can activate or deactivate the TURBO function When...

Page 16: ...OLLER 3 1 DISPLAY VIEW Figure 2 3 1 Appearance of wired controller Figure 2 3 2 LCD display of wired controller Table 2 3 1 Instruction to LCD Display No Icons Introduction 1 Left and right swing function 2 Up and down swing function 3 Air exchange function ...

Page 17: ...button operation temperature setting On Off operation Mode setting and Save setting are disabled 15 Fan speed 16 Memory function The unit will resume the original setting state after power recovery 17 Turbo function 18 Energy saving function 19 Ambient setting temperature 20 Electric heater 21 Blow function 22 Defrosting function 23 Filter cleaning 24 Timer Setting 25 Keycard control Detected stat...

Page 18: ...tion level Setting of energy saving temperature Setting of cleaning class 6 3 Fan Setting of high medium high medium medium low low auto fan speed 4 Mode Setting of auto cooling heating fan dry mode of indoor unit 5 Function Switch over among these functions of swing air sleep health I Demand out turbo save e heater X fan clean quiet 7 Timer Timer setting 8 On Off Turn on off indoor unit 4 Mode an...

Page 19: ... and slave wired controller Under off state of the unit press Enter Cancel and Mode buttons at the same time for 5s to set master and slave wired controller Press or button to adjust More details please refer to project debugging Notes The following functions can be set through Function and Timer buttons setting of ambient temperature sensor selecting three speeds in high speed and three speeds in...

Page 20: ...e of master slave wired controller In this case LCD displays wired controller s address 01 for master wired controller and 02 for slave wired controller Press or button to adjust address of master slave wired controller and then press Enter Cancel button to confirm If slave wired controller is set the icon will be displayed Note If there is only one wired controller it only can be set as the maste...

Page 21: ...then enter setting of filter clean reminder function Timer zone displays the set pollution level and you can press or button to adjust the level Then press Enter Cancel button to turn on this function When filter clean reminder function is turned on press Function button to switch to filter clean reminder function The icon will blink and press or button to adjust timer zone to display 00 Then pres...

Page 22: ... 2 Slight pollution the former digit in timer zone shows 1 while the latter one shows 0 which indicates the accumulated operating time is 5500hr Each time the latter digit increases 1 the accumulated operating time increases 500hr When it reaches 9 it means the accumulated operating time is 10000hr 3 Medium pollution the former digit in timer zone shows 2 while the latter one shows 0 which indicat...

Page 23: ...f cleaning time is reached in unit on or off state will blink every 0 5s for reminder Press Function button to switch to icon and press and button to adjust the level Then press Enter Cancel button so the accumulated operating time won t be cleared If the adjusted level is higher than the present accumulated operating time the icon won t blink any more if the adjusted level is lower than the prese...

Page 24: ...abnormal Do not cut off power within 5s after memorized content is changed 4 5 MODBUS INTERFACE The unit of this series has MODBUS interface If the user needs to connect the unit to the management system of the building please enquire C H for the MODBUS protocol Figure 2 4 2 1 Interface instruction 1 The printing is COM BMS1 and the interface type is B4B XH K3 2 Electrical characteristic baud rate...

Page 25: ...econd selection and then press Enter Cancel button to save and exit setting Now the address of wired controller is set to match the address of long distance control The unit will memorize this setting status The setting value will be memorized after power failure The detailed setting is as shown in the Figure below Figure 2 4 3 2 Address setting of each unit when the address mode is set to be long...

Page 26: ...affected Perform wiring when the unit power is cut off 4 6 SWITCH BETWEEN FAHRENHEIT AND CENTIGRADE Under off state of the unit press Mode and buttons at the same time for 5s to switch between Fahrenheit and Centigrade 4 7 ENQUIRY OF AMBIENT TEMPERATURE Under off or on state of the unit press it for 5s to view the ambient temperature In this case timer zone displays ambient temperature type 01 or ...

Page 27: ...lue 4 9 1 Setting ambient temperature sensor dual ambient temperature sensors function Under debugging state press Mode button to adjust to 00 in temperature displaying zone Timer zone displays setting state and press or button to adjust There are 3 selections 1 The ambient temperature at air return is set as indoor ambient temperature timer zone displays 01 2 The temperature at wired controller i...

Page 28: ...mode duct type unit and floor ceiling unit blow residual heat for 60s and then stop indoor unit while cassette type unit always operates in low fan speed and blows residual heat for 60s when there is malfunction Mode 2 After unit stops when reaching temperature point the indoor fan motor stops operation with a 10s delay no matter in cooling mode or in heating mode 4 9 6 Mode selecting of compresso...

Page 29: ...ections Centralized controller LCD displays 00 Long distance monitoring LCD displays 01 4 9 11 Selecting fan mode of indoor fan motor Under debugging state press Mode button to adjust to 11 in temperature displaying zone Timer zone displays setting state and press or button to adjust There are 5selections P3 LCD displays 03 P4 LCD displays 04 P5 LCD displays 05 P6 LCD displays 06 P7 LCD displays 0...

Page 30: ...mpensate 15 LCD displays 15 Note Indoor ambient temperature compensation can be set through wired controller E g If 02 is selected it indicates the compensation temperature is 2 If the indoor ambient temperature detected by the temperature sensor at air return is 29 the ambient temperature after compensation is 29 2 27 After finishing setting press Enter Cancel button to save and exit setting Afte...

Page 31: ... in interface of communication wire is correct otherwise it may lead to communication malfunction 2 The signal wires and communication wires of wired controller should be separated from power cord and connection wire between indoor unit and outdoor unit 3 If the air conditioner is installed at the strong electromagnetic interference place signal wire and communication wire of wired controller must...

Page 32: ...t this wire go through the hole at the back of wired controller s base plate 2 Fix the base plate and installation hole of the wall together with screw M4 25 3 Fix the above mentioned 2 core signal wire on the copper insert X1 and X2 with the equipped screws of wired controller 4 Fasten the wired controller s panel with its base plate together 5 4 REMOVAL OF WIRED CONTROLLER Figure 2 5 3 Removal o...

Page 33: ... error 8 F1 Evaporator temperature sensor error 9 F2 Condenser temperature sensor error 10 F3 Outdoor ambient temperature sensor error 11 F4 Discharge temperature sensor error 12 F5 Temperature sensor error of wired controller 13 C5 Capacity code error 14 EE Outdoor memory chip error 15 PF Electric box sensor error 16 H3 Compressor overload protection 17 H4 Overloading 18 H5 IPM protection 19 H6 D...

Page 34: ...chip error Remarks If E1 and E3 show by turns it means overload protection Note When there is a malfunction during operation error will be displayed on the temperature displaying zone of LCD When several malfunctions occur at the same time these error codes will be displayed circularly Note When there is a malfunction please turn off the unit and ask the professional for maintenance Table 2 6 2 Er...

Page 35: ...t malfunction 18 AP Fan AC input voltage abnormality 19 Ar Fan drive board environment temperature sensor malfunction 20 U9 Fan AC contactor protection or input zero crossing error Note These error codes only show on dual 8 numeral tube Display of the main board Note When the unit is connected with the wired controller the error code will be H6 shown on the temperature displaying zone of LCD Note ...

Page 36: ...Rooftop Packaged Service Manual INSTALLATION 33 INSTALLATION ...

Page 37: ... is better to set up a sun shield as the protection 5 Place of installation must be able to drain the rainwater and defrosting water 6 Place of installation must ensure the unit will not subject to the influence of rubbish or oil fog 7 The installation site must be at a place where the air exhaust outlet does not face strong wind 8 Unit must be fixed on stable and solid surface of floor 1 2 MATTER...

Page 38: ... 3 INSTALLATION PEDESTAL The unit must be laid on horizontal pedestal that is rigid It is advised that pedestal is made of concrete The high dimension of the pedestal must larger than the dimension that needed for drainpipe installation And the unit must be fixed on the pedestal with bolt The location of pedestal must be able to support the weight of the unit If not the unit may be overturning dec...

Page 39: ...Rooftop Packaged Service Manual INSTALLATION 36 CH IRT08NM CH IRT15NM ...

Page 40: ...ixed by the prefabricated boards of the ceiling by using iron supports The joints of the ducts must be sealed by glue so as to avoid leakage The edge of the air intake duct must be at least 150mm away from the wall Silencing and shock absorption shall be considered in the design and installation of the air ducts Additionally the noise source must be far away from where people stay The air intake s...

Page 41: ...Rooftop Packaged Service Manual INSTALLATION 38 1 3 DIMENSION 1 3 1 DIMENSION OF UNITS CH IRT05NM CH IRT08NM B A C D I J F E G H K L M ...

Page 42: ...nsion mm A B C D E F G H I J K L M 5Ton 815 1750 1100 80 133 408 61 904 50 145 125 795 169 8Ton 1230 2110 1450 75 134 670 100 1112 84 198 211 868 361 15Ton 1245 2810 2240 90 144 592 43 1872 177 211 168 1900 168 Note Above diagrams may be different from actual mode ...

Page 43: ...ice Manual INSTALLATION 40 1 3 2 INSTALLATION CLEARANCE DATA Note Above diagrams may be different from actual mode CH IRT05NM Installation Clearances DIMENSION Minimum mm inch A 600 24 B 1100 43 C 860 34 D 1100 43 E 1100 43 ...

Page 44: ... IRT08NM Note Above diagrams may be different from actual model CH IRT15NM Note Above diagrams may be different from actual model CH IRT08NM CH IRT15NM Installation Clearances DIMENSION Minimum mm inch A 1000 39 B 1500 59 C 1100 43 D 1100 43 E 1830 72 ...

Page 45: ...coil condensate drain ends with a threaded 3 4 NPT stub tube A trap must be built for proper condensate drainage and to prevent debris from being drawn into the unit 2 2 MATTERS OF ATTENTION The condensate pipe shall be installed with an inclining angel of 5 10 so as to facilitate the drainage of condensate As the inside of the unit is in the negative pressure status it is required to set up a bac...

Page 46: ...le contact the refrigerant pipe the compressor and moving parts such as fan 8 Do not change the internal line connections inside the air conditioning unit The manufacturer shall not be liable for any loss or abnormal operation arising from wrong line connections 9 If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to ...

Page 47: ...1 L2 L3 terminals and the grounding screw 4 Use cable fastener to bundle and fix the cable 3 Low Voltage Connections Low voltage wiring must use coppery cord A minimum of 18AWG must be used for distance up to 50 and 16AWG for distance over 50 1 Remove the Electric Box Cover of the unit 2 Pass the signal cable of the wire controller through rubber ring 3 Connect the signal cable to the 1 2 terminal...

Page 48: ...Rooftop Packaged Service Manual INSTALLATION 45 3 2 ELECTRIC WIRING DESIGN Three Phase 380 415V 3Ph 50 60Hz POWER SUPPLY CH IRT05NM CH IRT08NM CH IRT05NM CH IRT08NM ...

Page 49: ...Rooftop Packaged Service Manual INSTALLATION 46 CH IRT15NM CH IRT15NM ...

Page 50: ...Rooftop Packaged Service Manual MAINTENANCE 47 MAINTENANCE ...

Page 51: ...til evaporator temperature is higher than the protective temperature value and the compressor is stopped for 3min 3 E3 Low pressure protection Low pressure switch If it is detected within 30s successively that the low pressure switch is cut off under ON or standby state the unit will report low pressure protection If the fault occurs successively 3 times within 30min the unit cannot be recovered a...

Page 52: ...nsor malfunction will be reported The unit can automatically resume operation after the malfunction disappears If indoor ambient temperature sensor malfunction occurs in fan mode only the error code is displayed and the unit can work normally 9 F1 Malfunction of evaporator temperature sensor Evaporator temperature sensor If the indoor evaporator temperature sensor is detected of open circuit or sh...

Page 53: ...n 16 H4 Overload protection Evaporator temperature condenser temperature If unit detects that the tube temperature is higher than protective temperature value the unit will report overload protection The unit will not restart operation until tube temperature is lower than the protective temperature value and the compressor is stopped for 3min If the protection occurs over 6 times the unit cannot b...

Page 54: ...UNCTION Main board dual 8 numeral tube Display Codes for Unit Malfunction Item Wired Controller Display Unit display of dual 8 numeral tube DC busbar over voltage protection PH PH IPM or PFC over temperature protection P8 P8 Current sense circuit error Pc Pc IPM or PFC temperature sensor error P7 P7 Compressor current protection P5 P5 DC busbar under voltage protection PL PL Compressor startup fai...

Page 55: ...ization H6 AJ Malfunction from Condenser Fan driving part to main control communication H6 A6 Overheat protection of Condenser Fan radiator H6 A8 Condenser Fan radiator sensor malfunction H6 A9 Condenser Fan Drive Storage chip malfunction H6 An Condenser Fan Charge circuit malfunction H6 AU Condenser Fan AC input voltage abnormality H6 AP Condenser Fan drive board environment temperature sensor ma...

Page 56: ...nnect wire according to the circuit diagram No Replace the high pressure switch Yes Replace the main board 是 Operate the unit in normal ambient temperature range specified in user s manual Check if the indoor and outdoor operating ambient temperature is within normal range E2 Freeze Protection Freeze protection is normal protection but not abnormal malfunction If freeze protection occurs frequentl...

Page 57: ... lower than 0 05MPa No Yes Charge refrigerant according to the requirement and then turn on the unit to see if E3 protection still occurs Yes Enter debugging mode through wired controller and select without refrigerant lacking protection then turn on the unit to see if E3 protection still occurs Yes Yes Weld the leakage point and recharge refrigerant after vacuum pumping and pressure retaining are...

Page 58: ...and pressure retaining are passed Yes Replace the outdoor main control board No Replace the discharge temperature sensor E6 Communication Malfunction Communication malfunction Check if the communication wire between indoor mainboard and outdoor mainboard is connected well Reconnect the communication wire No Check if there is open circuit in the communication wire between indoor mainboard and outdo...

Page 59: ...rectly insert the temperature sensor on the needle stand Replace the temperature sensor Replace the indoor mainboard Yes No No Yes F1 Malfunction of Evaporator Temperature Sensor Malfunction of evaporator temperature sensor Check if the evaporator temperature sensor on mainboard is inserted on the needle stand correctly Disconnect the temperature sensor and measure if its resistance is normal Corr...

Page 60: ...e temperature sensor on the needle stand Replace the temperature sensor Replace the outdoor mainboard Yes No No Yes F3 Malfunction of Outdoor Ambient Temperature Sensor Malfunction of outdoor ambient temperature sensor Check if the outdoor ambient temperature sensor on mainboard is inserted on the needle stand correctly Disconnect the temperature sensor and measure if its resistance is normal Corr...

Page 61: ...mperature sensor Check if the discharge temperature sensor on mainboard is inserted on the needle stand correctly Disconnect the temperature sensor and measure if its resistance is normal Correctly insert the temperature sensor on the needle stand Replace the temperature sensor Replace the outdoor mainboard Yes No No Yes ...

Page 62: ...fan motor is connected on the outdoor mainboard correctly Replace the outdoor fan motor and then restart the unit to see if there still is malfunction of outdoor fan motor Correctly connect the control wire of fan motor on the mainboard Operate the unit with the new motor Replace the outdoor mainboard Yes No No Yes Replace the outdoor fan motor drive board and then restart the unit to see if there...

Page 63: ...nction of indoor fan motor Correctly connect the control wire of fan motor on the mainboard Operate the unit with the new motor Replace the indoor mainboard Yes No No Yes 2 2 TROUBLESHOOTING FLOW CHART OF DRIVE MALFUNCTION P0 Drive module reset P7 IPM temperature sensor error PA AC current protection input side PC Current sense circuit error P0 P7 PA or PC is displayed on the wired controller P0 P...

Page 64: ...e protection PH or PL is displayed on the wired controller PH or PL is displayed in the mainboard 88 indicating lamp Is input voltage ranged from 185VAC to 264VAC Yes Replace the mainboard Does it work normally No Replace the compressor Work normally Yes Please cut off the power and notify the power company No ...

Page 65: ...rmally Yes No P5 Compressor current protection H7 Compressor motor desynchronizing H5 IPM protection Ld Phase loss P5 H7 H5 or Ld is displayed in the mainboard 88 indicating lamp Is the compressor phase sequence right Yes Replace the mainboard Does it work normally No Replace the compressor Work normally Yes adjust the compressor phase sequence Is the compressor wire terminals tightened Tighten th...

Page 66: ...played in the mainboard 88 indicating lamp Is the motor phase sequence right Yes Replace the mainboard Does it work normally No Replace the outdoor fan Work normally Yes Adjust the motor phase sequence Is the Fan wire terminal loose Tighten the fan wiring terminal Yes No No H6 is displayed on the wired controller Replace the Condenser Fan Drive Board Does it work normally No Yes ...

Page 67: ... COMP T SENSOR2 EKV1 FA L1 L2 L3 N COM_OUT CN2 X500 X501 ROOM TUBE PUMP C XT2 1 2 X1 X2 WIRED CONTROLLER PE X1 X2 CN501 PE L1 X3 X5 X4 PE W1 W2 W3 4 CAP JUMP2 CAP JUMP Note Jumper cap needs to be connected if there is a jumper cap on unit s main board EH1 HEAT AP1 X9 AP2 X9 AP3 CN101 CON303 CN302 3 PE W V U COMP1 AP4 CN101 CN303 CN302 3 PE W V U COMP2 AP5 COMM1 A1 A2 PM AP9 CN451 AP10 DC MOTOR1 X2...

Page 68: ...W17 W18 W19 W20 W21 W22 W23 W24 W25 W26 W27 W28 W29 W30 W32 W31 W33 W36 W39 YEGN YEGN W71 W72 W73 W68 W69 W70 W41 W40 CN1 CN23 M3 W44 W46 W42 W43 W53 W51 W52 W45 W56 W57 W47 W58 W59 BN BK W60 W61 W62 W63 BK BK W64 W65 W66 W67 W48 W50 W49 W54 W55 CN2 COM6 2 W74 KM KM CN23 2 CN8 2 AC_N AC_L PE YEGN PE YEGN PE YEGN PE YEGN PE PE YEGN AP11 AP10 AP9 L4 L3 AP8 AP3 AP2 AP1 AP5 AP6 XT1 L1 L2 PM KM XT2 POW...

Page 69: ...ant in the system Connect vacuum recovery tank with nozzle for adding freon for recovery of refrigerant Note Recovery work must be complete because refrigerant is badly hurtful to environment and animals 2 Take out the cover plate Unscrew the screws fixing cover plate indicated by arrows to take it out 3 Disconnect the power cord Pull out power cord or disconnect the power cord after unscrewing th...

Page 70: ...hen remove compressor from the base Note Keep compressor level and vertically out Never invert it 6 Fix the compressor on to the base Put the repaired or new compressor on base as the direction during removing and then screw down fixing nut on compressor base with a wrench Note Keep compressor level and vertically on to the base Never incline or invert it 7 Connect compressor with system pipes Hea...

Page 71: ...ssor must be re covered to resisting water All cable can not contact the pipe and moving parts such as fan 9 Re install the cover plate Put the cover plate back and tighten the screws 10 Recharge refrigerant Connect refrigerant tank with nozzle of low pressure indicated by the maker for recharging refrigerant Note Check the leak after finishing the connectionpipes Charge amount should be consisten...

Page 72: ...diagram which adhered on electric box for disconnection of connection lines of condenser fan motor 2 Take out the cover plate Unscrew the screws fixing cover plate indicated by arrows to take it out 3 Take out the fan blade Unscrew the screw indcated by the arrow fixing fan to take the fan out Note Fix fan blade when unscrew the holding bolt to avoid fan blade from rotating and thereby injury to p...

Page 73: ... indicated by the arrow with a wrench Note Moment of force should be within 8 12N during screwing down bolt After that please charge glue into gap between bolt and hole to avoid loose of it 7 Re install the cover plate Put the cover plate back and tighten the screws 8 Re connect power cord Re connect power cord according to circuit mark adhered on eletric box Note After connection arrange leading ...

Page 74: ... Unscrew the screws fixing cover plate Lift the handles slightly pulling it outwards and downwards to take out the cover plate 2 Disconnect all connection lines Disconnect all connection lines between motor and elements in electric box Note Please refer to the schematic diagram which adhered on electric box for disconnection of connection lines of supply blower motor 3 Remove the screws on fan sub...

Page 75: ...ed Service Manual MAINTENANCE 72 4 Remove the fan volute Remove the fan volute 5 Remove the fan blade Remove the fan blade 6 Install the fan blade Install the fan blade 7 Install the fan volute Install the fan volute ...

Page 76: ...wer cord Re connect power cord according to wiring diagram adhered on eletric box Note After connection arrange leading wires and refix them with bundles at original locations All cable can not contact the pipe and moving parts such as fan Close the cover plate of electric box hermetically 10 Re install the cover plate Put the cover plate back and tighten the screws ...

Page 77: ...e side plate 2 Disconnect the power cord Pull out power cord or disconnect the power cord after unscrewing the screws Note Earmark the colour of wire corresponding to the terminal when removing the wire to avoid mistakes when renewing wire connection 3 Take out the electric box cover Unscrew the screws fixing cover indicated by the arrows Then take out the cover 4 Disconnect all connection lines D...

Page 78: ...ke down and refix the Power cord with bundles at original locations Note The line connection must accord to the schematic diagram All cable can not contact the pipe and moving parts such as fan 7 Re install the electric box cover Put the electric box back and tighten the screws 8 Re connect power cord Re connect power cord according to wiring diagram adhered on eletric box Note After connection ar...

Page 79: ...Rooftop Packaged Service Manual MAINTENANCE 76 NOTE Above diagrams may be different from actual model 9 Re install the side plate Put the side plate back and tighten the screws ...

Page 80: ...y work must be complete because refrigerant is badly hurtful to environment and animals 2 Take out the cover plate Unscrew the screws fixing cover plate indicated by arrows to take it out 3 Disconnect the power cord Pull out power cord or disconnect the power cord after unscrewing the screws Note Earmark the colour of wire corresponding to the terminal when removing the wire to avoid mistakes when...

Page 81: ... a wrench Note Keep compressor level and vertically on to the base Never incline or invert it 7 Connect compressor with system pipes Heat the connection pipes indicated by arrows and then weld them with unit pipes together Note Pay attention to things around to avoid burning out 8 Reconnect power cord of compressor Reconnect the power cord into compressor according to the procedure of disconnectin...

Page 82: ...d be consistent with nameplate NOTE Above diagrams may be different from actual model Disassembly and Assembly of Condenser Fan Motor Remark Make sure that the unit is stopped running and power supply is cut off before removal of the motor Step Illustration Handling Instruction 1 Disconnect the electrical source wire Disconnect all connection lines between motor and elements in electric box Note P...

Page 83: ...de Unscrew the screw indcated by the arrow fixing fan to take the fan out Note Fix fan blade when unscrew the holding bolt to avoid fan blade from rotating and thereby injury to people is caused 4 Take down the motor from the bracket Remove the holding bolt of motor firstly and then remove motor from bracket Note Loosen power cord fixed by bundles before removing motor ...

Page 84: ...locations 6 Install and fix fan blade Re install fan blade and screw down the holidng bolt indicated by the arrow with a wrench Note Moment of force should be within 8 12N during screwing down bolt After that please charge glue into gap between bolt and hole to avoid loose of it 7 Re install the cover plate Put the cover plate back and tighten the screws 8 Re connect power cord Re connect power co...

Page 85: ...s stopped running and power supply is cut off before removal of the motor Step Illustration Handling Instruction 1 Take out the cover plate Unscrew the screws fixing cover plate Lift the handles slightly pulling it outwards and downwards to take out the cover plate 2 Disconnect all connection lines Disconnect all connection lines between motor and elements in electric box Note Please refer to the ...

Page 86: ... 4 Remove the screws on fan sub assembly Unscrew the screws fixing cover plate indicated by arrows 5 Take down the fan and motor screw Unscrew the holding screw of fan indicated by the arrows to loose connection between motor shaft and fan Note Fix fan blade when unscrewing hoiding nut of fan blade to avoid blade from rotating and thereby injury to people is caused ...

Page 87: ...x the fan sub assembly on to the bracket Then screw down the holding bolt with a wrench 8 Re connect power cord Re connect power cord according to wiring diagram adhered on eletric box Note After connection arrange leading wires and refix them with bundles at original locations All cable can not contact the pipe and moving parts such as fan Close the cover plate of electric box hermetically ...

Page 88: ... and power supply is cut off before removal Step Illustration Handling Instruction 1 Take down the side plate Unscrew the screws fixing side plate Lift the handles slightly pulling it outwards and downwards to take out the side plate 2 Disconnect the power cord Pull out power cord or disconnect the power cord after unscrewing the screws Note Earmark the colour of wire corresponding to the terminal...

Page 89: ...ll connection lines between exterior electric component and elements in electric box Note Please refer to the schematic diagram which adhered on electric box for disconnection of connection lines of motor 5 Take down the electric box Unscrew the screws indicated by the arrows and then take down the electric box Note Power cord may be fixed by bundles so loose the bundles before taking out the elec...

Page 90: ...rd to the schematic diagram All cable can not contact the pipe and moving parts such as fan 7 Re install the electric box cover Put the electric box back and tighten the screws 8 Re connect power cord Re connect power cord according to wiring diagram adhered on eletric box Note After connection arrange leading wires and refix them with bundles at original locations All cable can not contact the pi...

Page 91: ...ery tank with nozzle for adding freon for recovery of refrigerant Note Recovery work must be complete because refrigerant is badly hurtful to environment and animals 2 Take out the side plate Screws Unscrew the screws fixing side plate indicated by arrows to take it out 3 Disconnect the power cord Pull out power cord or disconnect the power cord after unscrewing the screws Note Earmark the colour ...

Page 92: ...hen remove compressor from the base Note Keep compressor level and vertically out Never invert it 6 Fix the compressor on to the base Put the repaired or new compressor on base as the direction during removing and then screw down fixing nut on compressor base with a wrench Note Keep compressor level and vertically on to the base Never incline or invert it 7 Connect compressor with system pipes Hea...

Page 93: ...frigerant tank with nozzle of low pressure indicated by the maker for recharging refrigerant Note Check the leak after finishing the connectionpipes Charge amount should be consistent with nameplate NOTE Above diagrams may be different from actual model Disassembly and Assembly of Condenser Fan Motor Remark Make sure that the unit is stopped running and power supply is cut off before removal of th...

Page 94: ...remove motor from bracket Note Loosen power cord fixed by bundles before removing motor 5 Fix the new motor on to the bracket Put the repaired or replaced motor onto brakcet as the direction during removing Then screw down the holding bolt with a wrench Note Please keep the motor level and vertical during installation After that fix the power cord with bundles at original locations 6 Install and f...

Page 95: ...ove diagrams may be different from actual model Disassembly and Assembly of Supply Blower Motor Remark Make sure that the unit is stopped running and power supply is cut off before removal of the motor Step Illustration Handling Instruction 1 Take out the cover plate Unscrew the screws fixing cover plate Lift the handles slightly pulling it outwards and downwards to take out the cover plate 2 Disc...

Page 96: ...g screw of fan indicated by the arrows to loose connection between motor shaft and fan Note Fix fan blade when unscrewing hoiding nut of fan blade to avoid blade from rotating and thereby injury to people is caused 6 Take down the motor Unscrew holding bolt indicated by the arrow of motor bracket with a wrench to separate motor and bracket Note Please mark relative installation location between mo...

Page 97: ... bolt with a wrench 8 Install the fan blade and Propeller Housing Install the fan blade and Propeller Housing 9 Tighten fan blade Align the level of motors rotating shaft with the screws indicated by the arrows and then screw down the screws Note Please charge glue into gap between bolt and hole to avoid loose of it 10 Re install fan sub assy Re insatll the whole fan sub assy and then fix the scre...

Page 98: ...ox Note After connection arrange leading wires and refix them with bundles at original locations All cable can not contact the pipe and moving parts such as fan Close the cover plate of electric box hermetically 12 Re install the cover plate Put the cover plate back and tighten the screws NOTE Above diagrams may be different from actual model ...

Page 99: ...id mistakes when renewing wire connection 2 Take out the electric box cover Screws Unscrew the screws fixing cover indicated by the arrows Then take out the cover 3 Disconnect all connection lines Disconnect all connection lines between exterior electric component and elements in electric box Note Please refer to the schematic diagram which adhered on electric box for disconnection of connection l...

Page 100: ...m All cable can not contact the pipe and moving parts such as fan 6 Re connect power cord Re connect power cord according to wiring diagram adhered on eletric box Note After connection arrange leading wires and refix them with bundles at original locations All cable can not contact the pipe and moving parts such as fan Close the cover plate of electric box hermetically 7 Re install the side plate ...

Page 101: ...Rooftop Packaged Service Manual MAINTENANCE 98 5 EXPLODED VIEWS AND SPARE PART LIST Model CH IRT05NM ...

Page 102: ...Fitting 4304413207 1 15 Electronic Expansion Valve 43044100172 1 16 Strainer 0721212101 2 17 Nozzle for Adding Freon 06130002 2 18 Radiator 430034000016 1 19 Radiator 430034000018 1 20 Radiator 430034000004 1 21 Electric Box Assy 100002000271 1 22 Reactor 43130186 1 23 AC Contactor 44010245 1 24 Reactor 43130189 1 25 Main Board 30223000119 1 26 Main Board 30221000023 1 27 Main Board 30224000066 1 ...

Page 103: ... 016001000005 1 48 Brushless DC Motor 15704124 1 49 Magnet Coil 4300040032 1 50 Reactor 43130192 3 51 Rear Grill 3 016001000003 1 52 Side Plate Left 017110000003 1 53 Temperature Sensor 39000186 1 54 Temperature Sensor 390001921 1 55 Temperature Sensor 3900028025G 1 56 Condenser Assy 000100000017 1 57 Axial Flow Fan 10434100002 1 58 Axial Flow Fan nesting 02204102 1 59 Top Cover Board Sub Assy 2 0...

Page 104: ...ame of Part CH IRT08NM Part Code Quantity 1 Top Cover Sub Assy 1 30294000007 1 2 Temperature Sensor 01573702P 2 3 Temperature Sensor 01523901P 2 4 Temperature Sensor 012049000010P 1 5 Discharge Sensor 10434100002 2 6 Air Flue Assy 15704124 2 7 Blower Left 012010000093P 1 ...

Page 105: ... Handle 4602001531 1 28 Side Plate 2 4304000413 1 29 Reactor 07219056 1 30 Phase Reverse Protector 07220016 1 31 AC Contactor 4300040030 1 32 Main Board 072007000003 1 33 Main Board 011002000196 1 34 Side Plate 1 016001000008 1 35 Reactor 07424188 1 36 Rear Grill 1 07423204 1 37 Base Frame Sub Assy 017000000083P 1 38 Chassis sub assy 1 017055000032P 1 39 Water Tray Sub Assy 017000000084P 1 40 Chas...

Page 106: ...and Valve Fitting 30223000034 2 62 Electric Expand Valve Fitting 430034000022 4 63 Compressor Gasket 430034000021 4 64 Nozzle for Adding Freon 100002000272 1 65 Compressor and Fittings 07210044 2 66 Electromagnetic Valve 011001000359 1 67 Magnet Coil 11100100000601 1 68 Magnet Coil 1570411801 1 69 Grill 3 15704100009 1 70 Side Plate 3 15704118 1 71 Brushless DC Motor 000011000009 1 72 Axial Flow F...

Page 107: ...on Circle 012193000001P 2 3 Brushless DC Motor 15704100011 1 4 Axial Flow Fan 10434100007 2 5 Brushless DC Motor 15704100011 1 6 Blower for Axial Fan Sub Assy 000053000002 1 7 Side Plate Sub Assy 6 Air Flue 017110000014 1 8 Filter Sub Assy 111001000008 2 9 Air Duct Sub Assy 017107000013P 2 10 Blower Right 1570411801 2 11 Blower Left 15704118 2 Part Code ...

Page 108: ...oard 300002000147 1 30 Reactor 43130189 2 31 Electric Box Assy 100002000369 1 32 Reactor 4313017402 1 33 Reactor 4313017403 1 34 Main Board 300027000138 2 35 Filter Board 30223000118 2 36 Main Board 300027000088 1 37 Rectifier 46010604 2 38 Main Board 300027000021 1 39 Bipolar AC Contactor 44010221 1 40 Phase Reverse Protector 32214101 1 41 Terminal Board 420101852 1 42 Terminal Board 420102471 1 ...

Page 109: ...net Coil 4304000413 1 65 Gas liquid Separator 07424188 1 66 Condenser Assy 1 011002000206 1 67 Grill 2 016001000012 2 68 Electromagnetic Valve 43000054 2 69 Magnet Coil 4304000420 1 70 Magnet Coil 4304000437 1 71 4 Way Valve 43041100041 1 72 Magnet Coil 4300040048 1 73 Filter 07218603 1 74 Condenser Assy 2 011002000205 1 75 Rear Grill 3 016001000011 2 76 Side Plate Sub Assy 5 Indoor Side 017110000...

Page 110: ...Cooper Hunter International Corporation www cooperandhunter com ...

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