Boreal brisa BRS09HPJ1OA Service Manual
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Boreal brisa BRS09HPJ1OA Service Manual

Split air conditioner 230v
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Service Manual - 230V
BRS09HPJ1IA/OA
BRS12HPJ1IA/OA
BRS18HPJ1IA/OA
BRS24HPJ1IA/OA
Split Air Conditioner
Thank you for choosing our product.
For proper operation, please read and keep this manual carefully.
If you have lost the Owner's Manual, please contact the local agent or visit
www.borealintl.com or sent email to borealsales@borealintl.com for electronic version.

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  • Page 1 Service Manual - 230V BRS09HPJ1IA/OA BRS12HPJ1IA/OA BRS18HPJ1IA/OA BRS24HPJ1IA/OA Split Air Conditioner Thank you for choosing our product. For proper operation, please read and keep this manual carefully. If you have lost the Owner’s Manual, please contact the local agent or visit www.borealintl.com or sent email to borealsales@borealintl.com for electronic version.

  • Page 2: Table Of Contents

    Service Manual Table of Contents Part Ⅰ : Technical Information ...............1 1. Summary ........................1-2 2. Specifications ......................4 2.1 Specification Sheet .....................4-10 2.2 Operation Characteristic Curve ................11 2.3 Capacity Variation Ratio According to Temperature ......11-12 2.4 Cooling and Heating Data Sheet in Rated Frequency .......12 2.5 Noise Curve ......................13-14...
  • Page 3 Service Manual 8.4 Requirements for Electric Connection ............45 8.5 Installation of Indoor Unit ................45-47 8.6 Installation of Outdoor Unit ................48 8.7 Vacuum Pumping and Leak Detection ............49 8.8 Check after Installation and Test Operation ..........49 9. Maintenance .......................50-76 9.1 Error Code List ....................50-56 9.2 Troubleshooting for Main Malfunction ............57-63...

  • Page 4: Part Ⅰ : Technical Information

    Part Ⅰ : Technical Information 1. Summary Indoor Unit BRS09 - 24HPJ1IA...
  • Page 5 Outdoor Unit BRS09HPJ1OA BRS12HPJ1OA BRS18HPJ1OA BRS24HPJ1OA Technical Information...
  • Page 6 Remote Controller Model List: Indoor product Outdoor Remote Model Product code Indoor model Outdoor model code product code Controller YV1FB9F 1 GWH07QC-D3DNB2D CB432020800 GWH07QC-D3DNB2D/I CB432N20800 GWH07QC-D3DNA1D/O CB432W20800 1 BRS09HPJ1 CB432021800 BRS09HPJ1IA GWH09QC-D3DND4A/I CB432N21800 BRS09HPJ10A CB432W21800 YAN1F2FF 2 BRS12HPJ1 CB432022600 BRS09HPJ1IA CB432N22600 BRS12HPJ10A CB432W22600 2 GWH09QC-D3DND8A CB459006900 GWH09QC-D3 DND8A/I CB459N06900...

  • Page 7: Specifications

    2.1 Specification Sheet Model BRS12HPJ1_A Product Code CB432022600 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 12000 Heating Capacity Btu/h 13000 Cooling Power Input 1297 Heating Power Input 1172 Cooling Power Current Heating Power Current Rated Input 1500 Rated Current...
  • Page 8 Model of Outdoor Unit BRS12HPJ1OA Outdoor Unit Product Code CB432W22600 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXF-A102zE190B Compressor Oil FW68DA Compressor Type Rotary Compressor L.R.A. Compressor RLA Compressor Power Input 1023 Overload Protector HPC115/95U1/KSD115ºC Throttling Method Capillary Operation temp ºF 61~86...
  • Page 9 Model of Outdoor Unit GWC24QE-D3DNB2R/O BRS24HPJ1OA Outdoor Unit Product Code CB432W21600 CB432W21500 ZHUHAI LANDA ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark COMPRESSOR CO.,LTD CO.,LTD Compressor Model QXFS-B181zX030AA QXFS-B181zX030AA Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Twin Rotary Twin Rotary Compressor Locked Rotor Amp (L.R.A) 25.00 25.00...
  • Page 10 Model BRS09HPJ1_A Product Code CB432021800 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) Btu/h 9100(2457~9600) Heating Capacity(Min~Max) Btu/h 9500 (2457~11500) Cooling Power Input(Min~Max) 889(185~1100) Heating Power Input(Min~Max) 774(170~1350) Cooling Power Current Heating Power Current Rated Input 1350 Rated Current...
  • Page 11 Model of Outdoor Unit BRS09HPJ1OA Outdoor Unit Product Code CB432W21800 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A079zE190A Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA Compressor Power Input Overload Protector HPC115/95U1 KSD115℃...
  • Page 12 BRS18HPJ1_A Model GWC18QD-D3DNB2L Product Code CB432022300 CB432022400 Rated Voltage 208/230 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 17400(4100~18000) 17400(4094~20000) Heating Capacity(Min~Max) Btu/h 18000(4100~21000) Cooling Power Input(Min~Max) 1889(200~2300) 2040(200~2300) Heating Power Input(Min~Max) 1758(300~2400) Cooling Power Current Heating Power Current Rated Input 2300...
  • Page 13 Model of Outdoor Unit GWC18QD-D3DNB2L/O BRS18HPJ1OA Outdoor Unit Product Code CB432W22300 CB432W22400 ZHUHAI LANDA ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark COMPRESSOR CO.,LTD CO.,LTD Compressor Model QXF-A108zH190AA QXA-B141zF030A Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Rotary Rotary Compressor Locked Rotor Amp (L.R.A) 25.00 Compressor RLA 10.20...

  • Page 14: Operation Characteristic Curve

    2.2 Operation Characteristic Curve Heating Cooling 220V 220V • Conditions Indoor : DB80°F/WB66.9°F Outdoor : DB95˚F Indoor air flow : High Pipe lengt : 24.6ft 230V 230V 240V • Conditions Indoor : DB70°F/WB60°F 240V Outdoor : DB19.94°F/WB19.04°F Indoor air flow : High Pipe lengt : 24.6ft Compressor frequency(Hz) Compressor frequency(Hz)

  • Page 15: Cooling And Heating Data Sheet In Rated Frequency

    Heating operation ambient temperature range is -13°F~75°F Conditions Conditions Indoor:DB80°F/WB66.9°F Indoor:DB80°F/WB66.9°F Outdoor:DB95°F Outdoor:DB95°F Outdoor temp.(°C) Indoor air flow:Super High Indoor air flow:Super High Pipe length:24.6ft Pipe length:24.6ft 104 105.8 107.6 109.4 89.6 91.4 93.2 96.8 98.6 100.4 102.2 75.2 Outdoor temp.(°C) Outdoor temp.(°F) 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling:...

  • Page 16: Noise Curve

    2.5 Noise Curve BRS18HPJ1 BRS24HPJ1 Indoor side noise Outdoor side noise Heating Cooling Compressor frequency(Hz) Indoor fan motor rating speed Technical Information...
  • Page 17 BRS09HPJ1IA BRS12HPJ1IA Indoor side noise when blowing Outdoor side noise when blowing Heating Cooling Middle Super High High Indoor fan motor rotating speed Compressor frequency(Hz)

  • Page 18: Outline Dimension Diagram

    3. Outline Dimension Diagram 3.1 Indoor Unit BRS09HPJ1IA BRS12HPJ1IA 6 5/8 18 3/16 6 5/16 4 11/16 21 5/16 7 1/4 Φ2 3/16 Φ2 3/16 Φ2 3/16 Φ2 3/16 2 1/8 1 3/8 2 1/8 1 3/8 3 1/2 3 5/16 BRS18HPJ1IA BRS24HPJ1IA 8 1/8...

  • Page 19: Outdoor Unit

    3.2 Outdoor Unit GWH09QB-D3DNC6L/O GWH12QC-D3DNC6L/O GWC09AFC-D3DNA1A/O GWH09AFC- BRS09HPJ1OAWC12QC-D3DNB2M/O BRS12HPJ1OA GWC09QB-D3DNB2J/O 10 1/8 30 9/16 12 5/8 Unit:inch BRS18HPJ1OAGWC24QE-D3DNB2R/O BRS24HPJ1OA 12 11/64 33 7/64 35 29/32 14 11/16 22 29/32 Unit:inch...

  • Page 20: Refrigerant System Diagram

    4. Refrigerant System Diagram Heating model Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electron Capillary Strainer expansion valve COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...
  • Page 21 BRS09HPJ1_AWBRS12HPJ1_A GWC09QB-D3DNB2J Cooling and heating models Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Capillary Strainer COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...

  • Page 22: Electrical Part

    5. Electrical Part 5.1 Wiring Diagram ● Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●...
  • Page 23 BRS18HPJ1OA 60000706255402 The above data is subject to change without notice. Please refer to the nameplate of the unit. BRS12HPJ10A 60000706165503 Technical Information...
  • Page 24 BRS09HPJ1OA 600007062825 BRS24HPJ1OA 600007062554...

  • Page 25: Pcb Printed Diagram

    BRS09HPJ1IA BRS12HPJ1IA BRS18HPJ1IA BRS24HPJ1IA Top view Name Interface of health function neutral wire Neutral wire terminal Motor terminal Live wire terminal Auto button Up&down swing terminal Interface of Motor feedback Left&right swing terminal Terminal of temperature sensor WIFI terminal 11 Wired controller terminal 12 Interface of display board 13 Jumper cap Communication terminal for...
  • Page 26 BRS12HPJ10A Top view Name 1 Interface of compressor wire 2 Reactor wiring terminal 2 3 Reactor wiring terminal 1 4 Terminal of chassis electric heater 4-way valve terminal Grounding wire 7 Neutral wire 8 Communication wire 9 Live wire 10 Terminal of electronic expansion valve 11 Interface of temperature sensor 12 Overload interface of compressor 13 Terminal of outdoor fan...
  • Page 27 BRS18HPJ1OA BRS24HPJ1OA Top view Name Compressor three phase input interface Compressor overload protection interface Interface of temperature sensor Interface of electronic expansion valve 5 Interface of fan 6 4-way valve interface Interface of electric heating for compressor 8 Interface of live wire 9 Interface of netural wire 10 Interface of earthing wire 11 Interface of netural wire...
  • Page 28 BRS09HPJ1OA Top view Name 1 Compressor three phase input interface 2 Interface of fan 3 Interface of electric heating for chassis 4 4-way valve interface Interface of earthing wire Interface of live wire 7 Neutral wire Communication interface Needle stand of electronic expansion valve Compressor overload protection interface...

  • Page 29: Function And Control

    6.1 Remote Controller Introduction of...
  • Page 30 Technical Information...
  • Page 32 Technical Information...

  • Page 33: Ewpe Smart App Operation Manual

    6.5 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Home Wi-Fi Cellular/ home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version Download and installation...

  • Page 34: Brief Description Of Modes And Functions

    6.6 Brief Description of Modes and Functions All models Indoor Unit ● 1.Basic function of system (1)Cooling mode (1) Under this mode, fan and swing operates at setting status. Temperature setting range is 60.8~86.0 (2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status. (2)Drying mode (1) Under this mode, fan operates at low speed and swing operates at setting status.
  • Page 35 Service Manual (8)I feel control mode After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient temperature sent by remote controller. (9)Compulsory defrosting function (1) Start up compulsory defrosting function Under ON status, set heating mode with remote controller and adjust the temperature to 60.8 F.
  • Page 36 generated by the plastic parts due to thermal expansion and contraction is normal. During the cleaning and disinfection process, the room temperature may increase slightly, please keep the room well ventilated. Tips: The automatic cleaning function can only be started under normal environmental conditions. If the indoor environment is easy to dust, it is recommended to clean it once a month.
  • Page 37 Service Manual Outdoor Units 1. Input Parameter Compensation and Calibration (1) Check the ambient temperature compensation function Indoor ambient temperature compensation function. a. In cooling mode, the indoor ambient temperature participating in computing control = (T – ⊿ T indoor ambient temperature cooling indoor ambient temperature compensation b.
  • Page 38 3. Special Functions Defrosting Control ① Conditions for starting defrosting After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied after detections for continuous 3minutes, the defrosting operation will start. ② Conditions of finishing defrosting The defrosting operation can exit when any of the conditions below is satisfied: ③...
  • Page 39 1. Starting estimation: After the compressor stopped working for 180s, if T > [T (the temperature of hysteresis is 35.6ºF )], inner pipe frozen-preventing frequency-limited temperature the machine is only allowed to start for operating, otherwise it should not be started, and should be stopped to treat according to the frozen- preventing protection: Clear the trouble under the mode of power turn-off / heating, and the protection times are not counted.
  • Page 40 1. Frequency limited If [T ]≤T <[T ] , you should limit the frequency raising of heating overload frequency-limited temperature inner pipe heating overload frequency reducing temperature at normal speed compressor. 2. Reducing frequency at normal speed and stopping machine: If T[ ]≤T <[T...
  • Page 41 (6)Voltage sag protection After start the compressor, if the time of DC link Voltage sag [U ] is measured to be less than t Voltage sag protection time , Sagging protection voltage the machine should be stop at once, hand on the voltage sag trouble, reboot automatically after 30 minutes. (7)Communication fault When you have not received any correct signal from the inner machine in three minutes, the machine will stop for communication fault.
  • Page 42 (12) Starting-up Failure Protection for Compressor Stop the compressor after its starting-up fails, restart it after 20s if the fault doesnt shows, and if they are all failing for the successive start 3 times, it shall be reported as Starting-up Failure, and then restart up it after 3 min. When it still not be able to operate through carry out the above process for 5 times, it is available if press ON/OFF.
  • Page 43 6. Electric Heating Function of Chassis (1) When Toutdoor amb.≤32ºF , the electric heating of chassis will operate; (2) When Toutdoor amb.>35.6ºF , the electric heating of chassis will stop operation; (3)When 32ºF <Toutdoor amb.≤35.6ºF, the electric heating of chassis will keep original status. 7.

  • Page 44: Part Ii : Installation And Maintenance

    Part Ⅱ : Installation and Maintenance Service Manual Safety Precautions for Installing and Relocating the Unit: To ensure safety, please be mindful of the following precautions. Warnings 1. When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant.

  • Page 45: Notes For Installation And Maintenance

    Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8. Vacuum pump 9.

  • Page 46: Installation

    8. Installation 8.1 Installation Dimension Diagram Space to the wall Space to the wall At least 6 inches At least 6 inches Drainage pipe Installation and Maintenance...
  • Page 47 Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting frame, drill wall holes (select it according to the actual situation) Connect pipes of indoor Fix outdoor unit unit and drainage pipe...

  • Page 48: Installation Parts-Checking

    Service Manual 8.4 Requirements for Electric Connection 8.2 Installation Parts-checking 1. Safety Precaution (1) Must follow the electric safety regulations when installing Name Name the unit. Indoor unit Sealing gum (2) According to the local safety regulations, use qualified Outdoor unit Wrapping tape power supply circuit and breaker.
  • Page 49 Service Manual in the holes. 5. Connect the Pipe of Indoor Unit (3) Fix the wall-mounting frame on the wall with tapping screws (1) Aim the pipe joint at the corresponding bellmouth.(As show (ST4.2X25TA) and then check if the frame is firmly installed by in Fig.5) pulling the frame.
  • Page 50 Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe (1) Open the panel, remove the screw on the wiring cover and (1) Bind up the connection pipe, power cord and drain hose then take down the cover.(As show in Fig.11) with the band.(As show in Fig.14) (2) Reserve a certain length of drain hose and power cord for installation when binding them.

  • Page 51: Installation Of Outdoor Unit

    Service Manual 8.6 Installation of Outdoor Unit Refer to the following table for wrench moment of force: Hex nut diameter(inch) Tightening torque(ft·Ibf) 1. Fix the Support of Outdoor Unit(Select it according to Φ1/4 11.10~14.75 the actual installation situation) Φ3/8 22.12~29.50 (1) Select installation location according to the house structure.

  • Page 52: Vacuum Pumping And Leak Detection

    Service Manual Note: 8.8 Check after Installation and Test (1) The through-wall height of drain hose shouldnt be higher Operation than the outlet pipe hole of indoor unit.(As show in Fig.25) (2) Slant the drain hose slightly downwards. The drain hose 1.

  • Page 53: Maintenance

    9. Maintenance 9.1 Error Code List Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator During cooling and drying Possible reasons: High operation, except indoor 1.
  • Page 54 Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Refrigerant Refrigerant recovery. recovery The Serviceman operates it Nominal cooling mode mode for maintenance.
  • Page 55 Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Decrease Overload or temperature is too All loads operate normally, frequency high;...
  • Page 56 Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Compressor intermediate Showing during middle cooling or frequence in middle heating test test state During cooling and drying Overcurrent...
  • Page 57 Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator During cooling and drying operation, compressor will stop Refer to the malfunction analysis System is while indoor fan will operate;...
  • Page 58 Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Malfunction of During cooling and drying phase current operation, compressor will stop detection while indoor fan will operate;...
  • Page 59 Service Manual 1. Outdoor ambient temperature exceeds the operation range of unit (eg: less Cool: compressor and than-20oC or more than 60oC outdoor fan stops operation, for cooling; more than 30oC for Undefined while indoor fan operates; heating); outdoor unit Heat: compressor, outdoor 2.

  • Page 60: Troubleshooting For Main Malfunction

    9.2 Troubleshooting for Main Malfunction ●Indoor unit: 1. Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●...
  • Page 61 Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ● The fan motor cant operate? ●...
  • Page 62 Start Turn the fan blades by hand under power-off condition Adjust the motor and blade Whether the fan blades assembly so that rotor can run can run smoothly? smoothly. Turn unit on to check whether the malfunction is eliminated. Under power-off condition, Reinsert the wiring check whether the wiring terminal between indoor fan and main...
  • Page 63 3. Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● The motor is broken? ● Detection circuit of the mainboard is defined abnormal? Malfunction diagnosis process: Start Appearance of the...
  • Page 64 4. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Main detection points: ● Instant energization after de-energization while the capacitor discharges slowly? ● The zero-cross detection circuit of the mainboard is defined abnormal? Malfunction diagnosis process: Start Turn power off for 1minute,the turn...
  • Page 65 5. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected detecting Replace the plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...
  • Page 66 6. Malfunction of Insufficient fluorine protection F0 （4） Troubleshooting for F0 malfunction Heat exchangers are Clean the heat exchangers and remove Malfunction is too dirty or the air inlet/outlet eliminated. blockage of air inlet/outlet. is blocked. Compressor doesn't work Malfunction is Make compressor run normally.
  • Page 67 7. Communication malfunction E6 Start Cut off power supply. Check if connection line of IDU and ODU and the wire inside electric box are correctly connected. Connect the line Correct connection? according to Malfunction eliminated? wiring diagram. Main board matches Match correctly with display board? Main board of Malfunction eliminated?
  • Page 68 Service Manual 8. Malfunction of Overcurrent Protection E5 Main detection points: ● Is the supply voltage unstable with big fluctuation? ● Is the supply voltage too low with overload? ● Hardware trouble? Malfunction diagnosis process: Start Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...
  • Page 69 ●Outdoor unit: (1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel) Main Check Points: ●Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC. ●Is the reactor (L) correctly connected? Is the connection loose or fallen? Is the reactor (L) damaged? Fault diagnosis process: Turn on the unit...
  • Page 70 (2) IPM protection, phase current overcurrent (the control board as below indicates the control board of outdoor unit) H5/P5 Mainly detect: (1) Compressor COMP terminal (2) voltage of power supply (3) compressor (4) Refrigerant-charging volume (5) air outlet and air inlet of outdoor/indoor unit Troubleshooting: Turn on the unit after energization...
  • Page 71 (3) High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is outdoor ambient temperature in normal range? ●Are the outdoor and indoor fans operating normally? ●Is the heat dissipation environment inside and outside the unit good? Fault diagnosis process: Overheat and high temperature protection...
  • Page 72 (4) Start-up failure (following AP1 for outdoor unit control board) Mainly detect: ●Whether the compressor wiring is connected correct? ●Is compressor broken? ●Is time for compressor stopping enough? Fault diagnosis process: Power on the unit Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes? Does startup fail?
  • Page 73 (5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is the system pressure too high? ●Is the input voltage too low? Fault diagnosis process: Out of step occurs in Out of step occurs once the operation unit is powered on.
  • Page 74 (6) Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board) Mainly detect: ●Is the PMV connected well or not? Is PMV damaged? ●Is refrigerant leaked? Fault diagnosis process: 20 minutes after the complete unit is powered off Is the terminal FA for the Connect the electronic expansion valve...
  • Page 75 (7) Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: ●Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? ●Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any damage? Fault diagnosis process: Start...
  • Page 76 (8) Overload and high discharge temperature malfunction Main detection points: ● If the electronic expansion valve is connected well? Is the electronic expansion valve damaged? ● If the refrigerant is leaked? ● The compressor overload protection terminal is not connected well with the mainboard? ●...
  • Page 77 H3 or E4 is displayed 30min after power off the unit If the overload protector SAT is well connected? Under ambient temperature, test the resistance of overload protector with ohmmeter; resistance value should be＜1000ohm Connect wire If the wiring terminal FA of electronic according to wiring expansion valve is well connected? diagram...

  • Page 78: Troubleshooting For Normal Malfunction

    Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Cant be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether its due to power failure. If yes, No power supply, or poor After energization, operation indicator isnt bright wait for power recovery.
  • Page 79 Service Manual 4. ODU Fan Motor Cant Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram firmly...

  • Page 80: Removal Procedure

    Service Manual 10. Removal Procedure Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. 10.1 Removal Procedure of Indoor Unit 07/09/12K Step Procedure 1. Remove filter assembly Front panel Open the front panel.
  • Page 81 Service Manual Step Procedure 4. Remove detecting plate and electric box cover 2 Screw Electric box cover2 Remove the screw fixing detecting plate and then remove the detecting plate. Detecting plate Note:The position of detection board(WIFI) Screw may be different for -different models. for 09K Detecting plate Remove the screw fixing electric box...
  • Page 82 Service Manual Step Procedure 7. Remove electric box assy Screw Loosen the connection clasps between shield cover of electric box sub-assy and Clasps electric box, and then remove the shield cover of electric box sub-assy. Remove the screw fixing electric box assy . Electric box Shield cover of electric box sub-assy...
  • Page 83 Service Manual Step Procedure Instruction: Some wiring terminal of this product is with lock catch and other devices. circlip The pulling method is as below: holder 1.Remove the soft sheath for some terminals at first, hold the circlip and then pull out the terminals.
  • Page 84 Service Manual Step Procedure 9. Remove motor and cross flow blade Remove the screws fixing motor clamp Screws and then remove the motor clamp. Motor clamp Cross flow Remove the screws at the connection Screw Motor place of cross flow blade and motor; lift Holder the motor and cross flow blade upwards sub-assy...
  • Page 85 18/24K 1. Remove filter as s y Front panel Open the front panel. Push the left and right filters to make them break away from the groove on the front case. Then remove the left Front and right filters one by one. case Left filter Groove...
  • Page 86 Electric box cover 2 4. Remove electric box cover 2 and detecting plate(WIFI) Screw Remove the screws on the electric box cover 2 and detecting plate(WIFI), then remove the electric box cover 2 and Screws detecting plate(WIFI). Detecting plate (WIFI) Loosen the connection clasps between front case sub-assy and bottom case.
  • Page 87 Indoor tube temperature s ensor Cut off the wire binder and pull out the indoor tube temperature sensor. Screw off one grounding screw. Main Remove the wiring terminals of motor and board stepping motor. Remove the electric box assy. G rounding Screw off the screws that are locking each s c rew Wi ring...
  • Page 88 G roove R ear case ass y First remove the left side of evaporator from the groove on the rear case assy. Then remove the right side from the clasp on the C lasp rear case assy. Installation and Maintenance...
  • Page 89 Installation and Maintenance...

  • Page 90: Removal Procedure Of Outdoor Unit

    10.2 Removal Procedure of Outdoor Unit Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. 09K、GWH12QC-D3DNC6L/O GWC12QC-D3DNB2M/O BRS12HPJ1OA GWC09QB-D3DNB2J/ BRS09HPJ1OA Take heat pump for example. Steps Procedure 1.Remove cable cross plate 2 and valve cover...
  • Page 91 3.Remove grille and front panel Remove connection screws between the front grille and the front panel. Then remove the front grille. Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel. Grille Panel 4.Remove axial flow blade...
  • Page 92 6.Remove electric box assy Electric box assy Remove the 2 screws fixing the cover of elec- tric box. Lift to remove the cover. Loosen the wire and disconnect the terminal. Lift to re- move the electric box assy. 7.Remove 4-way valve assy Unscrew the fastening nut of the 4-way Valve 4-way Valve Assy Assy coil and remove the coil.
  • Page 93 9.Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor. Pull out the lead-out wire and remove the Motor motor. Remove the 2 tapping screws fixing the motor support. Lift motor support to re- move it. 10.Remove clapboard sub-assy Clapboard Sub-Assy Loosen the screws of the Clapboard Sub-Assy .
  • Page 94 BRS18HPJ1OA BRS24HPJ1OA Note: Take heat pump for example. Installation and Maintenance...
  • Page 95 Installation and Maintenance...
  • Page 96 Installation and Maintenance...
  • Page 97 Installation and Maintenance...
  • Page 98 Installation and Maintenance...
  • Page 99 Installation and Maintenance...

  • Page 100: Appendix

    Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius （℃） Celsius （℃） Celsius （℃） temperature temperature temperature （℉）...

  • Page 101: Appendix 3: Pipe Expanding Method

    Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...

  • Page 102: Appendix 4: List Of Resistance For Temperature Sensor

    Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor(15K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 138.1 18.75 138.2 3.848 208.4 1.071 -0.4 128.6 69.8 17.93 3.711 210.2 1.039 121.6 71.6 17.14...
  • Page 103 Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 181.4 25.01 138.2 5.13 208.4 1.427 -0.4 171.4 69.8 23.9 4.948 210.2 1.386 162.1 71.6 22.85 141.8 4.773 1.346 153.3 73.4 21.85 143.6...
  • Page 104 Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -20.2 853.5 120.2 18.34 190.4 4.754 -18.4 799.8 51.8 93.42 17.65 192.2 4.609 -16.6 53.6 89.07 123.8 16.99 4.469 -14.8 703.8 55.4 84.95 125.6 16.36 195.8 4.334...
  • Page 105 Boreal International a Watsco Inc. subsidiary borealsales@borealintl.com, www.borealintl.com, 10300 NW 19th St. #105, Doral, FL 33172, 786-621-8250 BOREAL_BRISA_SERVICE_09-24K_230V_02242021...

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