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LG PUDCA0 Installation Manual

Ahu communication kit


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Table of Contents

Summary of Contents for LG PUDCA0

  • Page 1 최종 컨펌일자 : 문서번호 KUKJE-127 Order No. CWROM-1606-00197 작업자 연구실 담당자 P/No. MFL50024811 희령 김동겸 개정일자 : 2016-6-1 QA 요청사항 : 1. 원고에 지시된 대로 작업한 후 이상없이 작업 되었는지 재차 검토 후 PDF 파일을 생성한다. 2. 작업완료 후 담당 연구원에게 수정부분에 대한 검증요청한다. (*** 반드시...
  • Page 2 Please read this installation manual completely before installing the product. Installation work must be performed in accordance with the national wiring standards by authorized personnel only. Please retain this installation manual for future reference after reading it thoroughly. PUDCA0 P/NO : MFL50024811...
  • Page 3 TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your equipment more efficiently by referring to the instructions below: • Do not cool excessively indoors. This may be harmful for your health and may consume more electricity.
  • Page 4: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING...
  • Page 5 IMPORTANT SAFETY INSTRUCTIONS Operation • Do not share the outlet with other appliances. - It will cause an electric shock or a fire due to heat generation. • Do not use the damaged power cord. - Otherwise, it may cause a fire or electrical shock. •...
  • Page 6: Table Of Contents

    PI 485 connection_essential accessory FAN Signal Wiring Concept INSTALLATION SCENE THERMISTORS INSTAL- SUPPLIES LATION Pipe thermistors Installation ACCESSORIES TROUBLESHOOTING PART DESCRIPTION Communication Kit (PUDCA0) BEFORE INSTALLATION COMMUNICATION KIT INSTALLATION Mechanical installation Electric Wiring Work Electrical Work Electric Wiring Work Controller Setting Method...
  • Page 7: Installation Scene

    For example, 503KCSFONT26 was produced on March 2015. Parts and components Name Remarks Field supply Outdoor Unit Single CAC AHU Communication Kit(PUDCA0) Field supply(Central control Device) Field piping Field supply Wiring connections Power supply and communication Communication Kit Wiring between comm.
  • Page 8: Supplies

    EBR65102902~04 EBG61287704(Out) MFL50024811 MAZ49398901 P/NO AJT74975201 EBG61106821 EBR52358920 EBR52358921 Shape Quanti- 2(Each 1) 5(Each 1) ty(EA) Weight (kg) Dimension (mm) Model Gross POWER Name Gross 220-240 V~ 50 Hz PUDCA0 6.32 7.92 220 V~ 60 Hz 208/230 V~ 60 Hz...
  • Page 9: Accessories

    ACCESSORIES ACCESSORIES Accessories Components Remote controller PI 485 PQRCVSL0 PMNFP14A0 Model name PQRCVSL0QW PMNFP14A1 Shape (Optional accessory) (Essential accessory) * For further details of the accessories, refer to the manual provided at the time of purchasing the accessories.
  • Page 10: Part Description

    PART DESCRIPTION PART DESCRIPTION Communication Kit (PUDCA0) No. m Part Name Quantity (EA) Plastic (+) Bolt Cover Expansion I/O PCB Supporter (Connect No. 3) Main PCB case Main PCB Option PCB (24 kBtu/hr) Bracket (For Adaptor) AC/DC Convertor Supporter (Fixing Wiring)
  • Page 11: Before Installation

    BEFORE INSTALLATION BEFORE INSTALLATION CAUTION • Don't install or operate the unit in rooms mentioned below. ① Where mineral oil, like cutting oil is present. ② Where the air contains high levels of salt such as air near the ocean. ③...
  • Page 12 BEFORE INSTALLATION CAUTION Selection of Evaporator(AHU) See table below for applicable units Selecting the capacity setting 'Option PCB'(Accessory) according to the capacity mentioned below. - The corresponding capacity setting 'Option PCB' needs to be selected depending on the need capacity. - After checking the need capacity, remove the 24 k Option PCB equipped in the main PCB, and set up the Option PCB fitted the need capacity in the main PCB.
  • Page 13 BEFORE INSTALLATION CAUTION • AHU Operation range - When installing Room thermistor, always place it to the inlet of Heat Exchanger. Other- wise, it may might not operate properly. - Range of the inlet Air temperature to the Heat Exchanger is 18 ~ 40°C for cooling & 5 ~ 30°C for heating.
  • Page 14: Communication Kit Installation

    COMMUNICATION KIT INSTALLATION COMMUNICATION KIT INSTALLATION Mechanical installation Remove the Comm. Kit box cover by unscrewing the plastic bolt (6EA) Drill 4 holes on correct position and fix the Comm. Kit box securely with 4 screws (Field supply) through the provided holes Ø4.5 mm (Reference the length of the holes Ø4.5) 348 mm Provided holes Ø4.5 mm (4EA)
  • Page 15: Electric Wiring Work

    COMMUNICATION KIT INSTALLATION Electric Wiring Work Circuit diagram CAUTION If you want to use Analogue Input signal for a variable capacity and a set temperature of room, you have to connect the wiring of AI 10-2, AI 10-3, AI 10-4.
  • Page 16 COMMUNICATION KIT INSTALLATION Electric Wiring Work Terminal Block No. Connection Function Remark. 220-240 V~ 50 Hz 1(L) / 2(N) Power Supply 220 V~ 60 Hz 208/230 V~ 60 Hz To Outdoor Unit Communication Line To Indoor Unit Fan Signal Low/Mid/High (AHU) Thermostat on/off Signal Defrost, Heating,...
  • Page 17: Electrical Work

    COMMUNICATION KIT INSTALLATION Electrical Work Connection of the wires For connection to outdoor unit and to controller (Field supply) : Pull the wires inside through the cable gland and close the nut firmly in order to ensure a good pull relieve and water protection. The wires require an additional pull-relief.
  • Page 18: Electric Wiring Work

    COMMUNICATION KIT INSTALLATION Electric Wiring Work CAUTION • All field supplied parts and materials and electric works must be conform to local codes. • Use copper wire only. • All wiring must be performed by an authorized electrician. • A main switch or other means for disconnection, having a contact separation in all poles, must be incorporated in the fixed wiring in accordance to relevant local and national legisla- tion.
  • Page 19: Controller Setting Method

    COMMUNICATION KIT INSTALLATION Controller Setting Method Dip switch setting If you want to run the Fan(L/M/H) in Heating Mode - defrosting condition, you should set the dip switch 4 to "On"(As shown below) * Setting : Black [Default setting] - . No 1/2/3/5/6/7/8 : Off - .
  • Page 20 COMMUNICATION KIT INSTALLATION Controller Setting Method Capacity controller Communication port Analog Input(2ch) (1ch, RS485) DIP S/W(SW0 3) Reset Button DIP S/W(SW01) Rotary S/W (3EA) Digital Output(7ch) Power(DC 12V) Digital Input(5ch) CAUTION - DI requires non-voltage contact - DO provides relay output (max : 250Vac 1A) - AI : 0Vdc ~ 10Vdc - RS485 port : Connect to INTERNET A/B on ODU’s main PCB Analog Input : Control the supply air temperature and Comp.
  • Page 21 COMMUNICATION KIT INSTALLATION ② Dip S/W(SW03) * Setting : Black SW03_SW [Default setting] - . No 1/2/3/4/6/7/8 : On - . No 5 : Off CAUTION When the Dip S/W No. 6 is On, capacity control is possible and the value of Analogue input signal for temperature control, Rotary S/W and Remote controller is ignored.
  • Page 22 COMMUNICATION KIT INSTALLATION ③ Dip S/W(SW01) * Setting : Black SW01_SW [Default setting] -. No 1/2/3/4/5/6/7/8 : Off...
  • Page 23 COMMUNICATION KIT INSTALLATION ④ Room Temperature control from DDC or Rotary S/W According to Dip S/W(SW03) Setting, you can set up the Function of Room Temperature control. Dip S/W(SW03) R R o o t t a a r r y y S S / / W W Rotary S/W Dip S/W(②...
  • Page 24 COMMUNICATION KIT INSTALLATION • Dip S/W(SW03) NO 4 : ON Analog Input 10-4 (VDC) Room Temp.(°C) Room Temp.(°C) Range Cooling Heating Normal Min. Max. 1.15 Not available Not available 1.35 1.65 1.85 2.15 2.35 2.65 2.85 3.15 3.35 3.65 3.85 4.15 4.35 4.65...
  • Page 25: Ahu Kit Wiring Configuration With Ddc

    (AHU) Te : HEX. Temp. Td : Discharge Temp. (Single CAC) LG Supply Field Supply Comm. Kit control capacity of the cooling/heating only according to the DDC’s control signal (DC 0~10V) Control signal from the DDC is decided by calculation logic with Td/Ti and setting tempera- ture (Calculation logic depends on BMS program).
  • Page 26: Di Wring Concept

    AHU KIT WIRING CONFIGURATION WITH DDC DI Wring concept DI Specification : Non-Voltage Contact Digital Input(5ch) Input Wiring Logic Conditions Open Short -. When short, the fan signal (FAN) is On -. Operation mode Operation and ODU will start to run. : DI 23-3/23-2 Operation DI 01-3...
  • Page 27: Do Wring Concept

    AHU KIT WIRING CONFIGURATION WITH DDC DO Wring concept DO Specification : AC 250V, DC 30V, 1A Digital Output(7ch) Output Wiring Logic Open Short -. When DI 01-3 is short, ODU and FAN are On. Operation Operation DO 01-4 -. When DI 01-3 is open, ODU and FAN are Off. -.
  • Page 28: Ai Wring Concept

    AHU KIT WIRING CONFIGURATION WITH DDC AI Wring concept Analog Input(2ch) * Setting DIP S/W(SW01) AI Specification : DC 0~10V 1.Option #1 2.Option #2 3.Option #3 Discharge Temperature Control through controlling of ODU capacity 1. Option #1...
  • Page 29 AHU KIT WIRING CONFIGURATION WITH DDC 2. Option #2 Comp. DO 01-4 is short, DO 01-2 is open. 0.6 1.4 1 258 24.4 1 683 27.9 1.6 2.4 1 225 23.5 1 748 29.3 2.6 3.4 1 193 22.6 1 814 30.7 3.6 4.4 1 127...
  • Page 30: Pi 485 Connection_Essential Accessory

    AHU KIT WIRING CONFIGURATION WITH DDC PI 485 connection_essential accessory PI 485 installation location Applicable PI 485 model - PMNFP14A0/ PMNFP14A1 . Using screw, fix the PI 485 on the bracket of outdoor unit control box For more information, please refer to Outdoor Unit installation manual. *Setting : Black Signal .
  • Page 31: Fan Signal Wiring Concept

    AHU KIT WIRING CONFIGURATION WITH DDC FAN Signal Wiring Concept [AHU] Motor Relay Field Wiring Factory Wiring [AHU Comm. Kit] R-HI R-MED R-LOW (MCC Panel ) Control power 220-240 V~ 50 Hz 220 V~ 60 Hz Motor input power Cable : Over CV 1.5 mm 220-240 V~ 50 Hz 220 V~ 60 Hz CAUTION...
  • Page 32: Thermistors Installation

    THERMISTORS INSTALLATION THERMISTORS INSTALLATION Pipe thermistors Installation Location of the pipe thermistors A correct installation of the thermistors is required to ensure a good operation : Pipe_In(EBG61287703) : Install the thermistor behind the distributor on the coldest pass the heat exchanger (contact your heat exchanger dealer).
  • Page 33 THERMISTORS INSTALLATION Installation of the pipe thermistor cable Put the thermistor cable in a separate protective tube. Always add a pull-relief to the thermistor cable to avoid strain on the thermistor cable and loosening of the thermistor. Strain on the thermistor cable or loosening of the thermistor may result in bad contact and incorrect temperature measurement.
  • Page 34 THERMISTORS INSTALLATION INSTRUCTION • Put the thermistor wire slightly top to above water accumulation on down of the thermis- tor. • For sensing the evaporator’s temp. in thermistor, Put the upper port the thermistors on the evaporator, this is the most sensitive point of the thermistor. Most sensitive point of the thermistor Maximize the contact 45°...
  • Page 35: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING Problem Cause Remedy Check the electrical connection and voltage No power supply of the power supply. Check the electrical connection of the AHU Communication Kit Wiring is wrong Communication Kit (Refer to the circuit dia- does not work gram of the Communication Kit) AHU Communication Kit Check the electrical and mechanical part.
  • Page 36 TROUBLESHOOTING [Error Code (Outdoor Unit)] Outdoor Error 2 Times 2 Times 2 Times Ex) CH21 (IGBTM Fault Error) LED01G (RED) 1 Sec. 1 Sec. 1 Sec. 1 Time 1 Time 1 Time LED02G (GREEN) 2 Sec. 2 Sec. 7 Segment CAUTION •...
  • Page 37 TROUBLESHOOTING - Error checking : The errors may be checked on LED of the display parts of wired remote con- troller and the LED of the controller of outdoor device. Error Display Operation Code Contents Outdoor Device Cable Remote State Controller Red LED Green LED Flashing...
  • Page 38 [Representative] LG Electronics Inc. EU Representative Krijgsman 1, 1186 DM Amstelveen, The Netherlands [Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA...

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