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LG PRCKD42E Owner's Manual

Ahu control kit
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OWNER'S MANUAL
AHU CONTROL KIT
Please read this manual carefully before operating
your set and retain it for future reference.
MODELS : PRCKD42E
P/NO : MFL62171708
www.lg.com

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  Summary of Contents for LG PRCKD42E

  • Page 1 OWNER’S MANUAL AHU CONTROL KIT Please read this manual carefully before operating your set and retain it for future reference. MODELS : PRCKD42E www.lg.com P/NO : MFL62171708...
  • Page 2 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 air conditioner more efficiently by referring to the instructions below: •...
  • Page 3: 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.
  • Page 4 IMPORTANT SAFETY INSTRUCTIONS • Do not twist or damage the power cable. - It may cause fire or electric shock. • During the electric work, request to the specialty store where you purchased the product or the service center. - If you disassemble or repair without authorization, it may cause fire or electric shock. •...
  • Page 5 IMPORTANT SAFETY INSTRUCTIONS CAUTION Installation • Do not install in a place with leakage of combustible gas. - If it is installed in a place with leakage of combustible gas, it may cause property damage. • If it is installed in a place like hospital, communication station, etc., provide sufficient protection facil- ity for noise.
  • Page 6: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING EN- POWER CONNECTION ERGY HMI SETTINGS/INSTAL- IMPORTANT SAFETY IN- LATION STRUCTIONS OUTDOOR UNIT AD- INSTALLATION LAYOUT DRESS SETTING PRODUCT COMPOSI- SYSTEM SETTINGS TION LOG INTO HMI PRODUCT DIMENSION HMI MENU PARTS LAYOUT HMI HOME SCREEN WIRING DIAGRAM HMI SCHEDULE...
  • Page 7: Installation Layout

    INSTALLATION LAYOUT INSTALLATION LAYOUT Installation composition diagram Power cable Communication cable Pipe sensor Temperature/ humidity sensor Refrigerant hose Item Applied Standards ¿ Air handling unit ¡ Control kit PRCKD42 ¬ Expansion kit unit PATX13A0/20A0/25A0/35A0 √ Outdoor unit MULTI V ƒ Pipe Temperature Sensor IN Sensor: Ø...
  • Page 8: Product Composition

    • Please retain this installation manual for future reference after reading it thoroughly. MODELS : PRCKD42 - Number of Nuts: 4 EA Spec: M10 www.lg.com P/NO : MFL62171708 <Control Kit> <Nuts/bolts for installation> <Installation/User Manual> Sensor (sold separately) - You must purchase/install the following temperature or temperature/humidity sensor before starting the product.
  • Page 9 PRODUCT COMPOSITION Product Layout • PRCKD42 Part name Specification Quantity No. Part name Specification Quantity ① ⑨ HMI Protective Cover Terminal Block #2/3 20 Pin I/O ② ⑩ 7" Touch LCD Terminal Block #4 15 A ③ ⑪ HMI Back Cover Circuit Breaker for Wiring 15 A, 1.5 KA ④...
  • Page 10: Product Dimension

    PRODUCT DIMENSION PRODUCT DIMENSION Product Measurements 4-Ø 16 Hole (Side) (Front) (Back) (Bottom) Classification Spec Description A (mm) Length B (mm) Height C (mm) Width D (mm) AHU Screwing and Distance Between Holes E (mm) 4-Ø16 hole Pipe Sensor IN 10-Ø25 hole Sensor/Communication Line IN line insertion part Ø30 hole...
  • Page 11: Parts Layout

    PARTS LAYOUT PARTS LAYOUT • PRCKD42E Part name Specification Quantity No. Part name Specification Quantity ① ⑥ COMM. PCB AC 24 V Terminal Block #2/3 20 Pin I/O ② ⑦ I/O PCB AC 24 V Terminal Block #4 15 A ③...
  • Page 12: Wiring Diagram

    WIRING DIAGRAM WIRING DIAGRAM • PRCKD42E...
  • Page 13 WIRING DIAGRAM...
  • Page 14 WIRING DIAGRAM...
  • Page 15 WIRING DIAGRAM...
  • Page 16 WIRING DIAGRAM...
  • Page 17: Installation Flowchart

    INSTALLATION FLOWCHART INSTALLATION FLOWCHART - Install the Control Kit in the following order. Control Kit Installation Since up to 3 outdoor units can be connect- Connect the pipe tempera- ed to 1 communication module, do not mix ture sensor the communication line with the pipe tem- perature sensors that are connected to each of the outdoor units.
  • Page 18: Control Kit Installation

    CONTROL KIT INSTALLATION CONTROL KIT INSTALLATION Determine the Production Installation Location - Check the Control Kit installation location in accordance with the site conditions and then check in the AHU product. 4-Ø12 hole Detail <AHU> Installation Location (When installing on the side of the product) CAUTION •...
  • Page 19 CONTROL KIT INSTALLATION Install the Control Kit - Install the Control Kit in the location shown in the picture below. Installation Complete CAUTION • Do not install the Control Kit alone. It can cause injuries. • After installing the product, check to see if it's installed securely in place.
  • Page 20 CONTROL KIT INSTALLATION Control Kit Outdoor Unit Box - Mount the Control Kit inside the installed outdoor unit box. Remove the nuts from the (PRCH56A1) Installation bolts inside the outdoor unit box to fasten them as shown below. Use the outdoor unit box to install the Control Kit in the following order.
  • Page 21 CONTROL KIT INSTALLATION Check Controller Settings - After having installed the Control Kit, check the Controller settings inside the Control Kit first. The dip switches of each PCB is set in the following order. Switch ON Switch OFF Set the switch CAUTION •...
  • Page 22: Pipe Temperature Sensor Connection

    PIPE TEMPERATURE SENSOR CONNECTION PIPE TEMPERATURE SENSOR CONNECTION - Check the IN/OUT of the pipe temperature sensor connected to the Expansion Kit. Expansion kit (PATX13A0/20A0/25A0/35A0) Pipe Temperature Sensor IN: Ø 5, Length: 10m, Color: Black Pipe Temperature Sensor OUT: Ø 7, Length: 10m, Color: Black Pipe Temperature Sensor IN Pipe Temperature Sensor OUT Flexible Tube and Connector: Ø...
  • Page 23 PIPE TEMPERATURE SENSOR CONNECTION Connect the communication cable (outdoor communication line) - Communication Cable Spec. (connect the outdoor unit to the Control Kit) Type: Shield Cable 2 Core Insulation: PVC Maximum Communication Cable Length: 1,000m or less Diameter: CV 1.25mm Maximum Temperature: 60 °C - Before connecting the outdoor units, check the address of the outdoor units and then connect them to the designated communication ports.
  • Page 24 OUTDOOR UNIT COMMUNICATION LINE CONNECTION OUTDOOR UNIT COMMUNICATION LINE CONNECTION Cautions on connecting the communication module with out- door unit - 2 communication PCBs are installed on the Control Kit. Each PCB can be connected to up to 3 outdoor units and Expansion Kits. Therefore, make sure the communication cables of each outdoor unit and pipe temperature sen- sor wires of Expansion Kit are not mixed when connecting the outdoor units.
  • Page 25: Outdoor Unit Communication Line Connection

    OUTDOOR UNIT COMMUNICATION LINE CONNECTION COMM. Cautions on connecting the PCB with outdoor unit - The system can malfunction if the power and communication lines are connected next to each other, because of the interference signal that can be created by the combination of static and electronic cables.
  • Page 26 OUTDOOR UNIT COMMUNICATION LINE CONNECTION Capacity Control Communication Cable Connection - A separate communication cable must be connected to the indoor unit in order to control the ca- pacity of the indoor unit in the Control Kit. Refer to the following diagram to connect the communication cable when it's necessary to con- trol the capacity.
  • Page 27: Ahu Sensor Specification

    AHU SENSOR SPECIFICATION AHU SENSOR SPECIFICATION Sensor/Load Spec. Make sure to use the AHU-applied sensor meeting the specifications described in the table below. Item Specification Remark - Power: AC 24 V - Input/output signal: DC 0~10 V Damper Actuator - Torque: 15 Nm Option - Operation time: 150 sec.
  • Page 28 AHU SENSOR SPECIFICATION Sensor installation location " CAUTION • The AHU may not start or function properly if the sensor is not installed in the location specified in the picture above. • Temperature/humidity sensors must be installed on the SA (supply)/RA(ventilation) ducts before the product can run normally.
  • Page 29: Ahu Sensor Cover Installation (For Outside Installation)

    AHU SENSOR COVER INSTALLATION (FOR OUTSIDE INSTALLATION) AHU SENSOR COVER INSTALLATION (FOR OUTSIDE INSTALLATION) Sensor Cover Installation (outdoors) When installing the AHU outdoors, make sure to install the protection box as shown below. Ex: Installation of a temperature and temperature/humidity sensor covers. Ex: Installation of a damper actuator cover.
  • Page 30: Ahu Sensor Connection

    AHU SENSOR CONNECTION AHU SENSOR CONNECTION Sensor / load connection - Temperature/humidity sensor (required) Item Specification Remark - Power: AC 24 V Temperature/humidity - Output signal: DC 0~10 V Required sensor - Temperature range: -40 °C~70 °C - Humidity range: 0~95 % RH Ex: SA (Supply) Temperature/Humidity Sensor Connection -AHU Controller Terminal Block#1...
  • Page 31 AHU SENSOR CONNECTION - Temperature Sensor (optional) Item Specification Remark - Power: AC 24 V Temperature sensor - Output signal: DC 0~10 V Option - Temperature range: -50 °C~50 °C Ex: SA (Supply) Temperature/Humidity Sensor Connection -AHU Controller Terminal Block#1 <Included in the Control Kit>...
  • Page 32 AHU SENSOR CONNECTION - Damper Actuator (optional) Item Specification Remark - Power: AC 24 V - Input/Output Signal: DC 0~10 V Damper Actuator - Torque: 15 Nm Option - Operation Time: 150 Sec. - Rotation Angle: 90˚ Ex: OA (outdoor unit) Damper Connection -I/O PCB #2 Terminal Block#3 <Inside the Control Kit>...
  • Page 33 AHU SENSOR CONNECTION - Filter Differential Sensor (optional) Item Specification Remark - Power: AC 24 V Filter Differential - Output signal: DC 0~10 V Option Sensor - Range: 0~1 000 Pa Ex: Filter Differential Sensor (voltage type) Connection -I/O PCB #2 Terminal Block#3 <Inside the Control Kit>...
  • Page 34 AHU SENSOR CONNECTION - Filter Differential Sensor (optional) Item Specification Remark Filter Differential - Switch-Type : Relay open/close Option Sensor Ex: Filter Differential Sensor (contact type) Connection -AHU Controller Terminal Block#1 <Inside the Control Kit> 1. For more information on the installation of a filter differential sensor, refer to the Manual that came with the sensor.
  • Page 35 AHU SENSOR CONNECTION - CO sensor(option) Item Specification Remark - Power: AC 24 V sensor - Output Signal: DC 0~10 V Option - Range: 0~2 000 ppm Ex: CO Sensor Connection -I/O PCB #2 Terminal Block#3 <Inside the Control Kit> AC 24 V(G) Ground(G0) DC 0~10 V(U)
  • Page 36 AHU SENSOR CONNECTION - Filter Differential Sensor (optional) Item Specification Remark - Power: AC 24 V Smoke Detector Option - Type: Contact Ex: Smoke Detector Installation -AHU Controller <Inside the Control Kit> Power Cable Connection AC 220 V 1. For more information on the installation of a smoke detector, refer to the Manual that came with the detector.
  • Page 37: Fan Driver Module Connection

    FAN DRIVER MODULE CONNECTION FAN DRIVER MODULE CONNECTION Control Kit and Fan Driver Connection - By default, each fan driver module can operate up to 2 fan motors. - The fan driver has a function for starting SA (Supply)/RA(Ventilation) motors, and the motors can be controlled and monitored through communication with the Control Kit.
  • Page 38 FAN DRIVER MODULE CONNECTION Fan Driver Module Address Settings - The address of each module must be set correctly in order for the motor to function properly. - Each fan driver module has two driver PCBs, and each of the PCBs must be given a separate ad- dress.
  • Page 39 FAN DRIVER MODULE CONNECTION Fan Motor Driver Module Capacity Settings - The induction motor capacity is determined by whether the CN_TH1 connector pin is inserted in the driver module. The motor can be started without a problem by configuring the settings ac- cording to the capacity.
  • Page 40: Power Connection

    POWER CONNECTION POWER CONNECTION Cautions - For regulations on the electric equipment and power cable, please refer to the regulations of government agencies responsible for setting technology standards and policies of power com- panies. WARNING • Make sure to have a licensed electrician to do the electric construction work involving special types of circuits in accordance with the general regulations and this Installation Manual.
  • Page 41 POWER CONNECTION Checklist and Power Connection - Please check the installation conditions in each item in HMI System Settings 5 of the Control Kit. If the fan rotates in the opposite direction, check the U, V, W connections in the driver mod- ule.
  • Page 42 POWER CONNECTION Power Connection (Control Kit Power Connection) - Follow the steps below for connecting the main power to the Control Kit. (Refer to the Wiring Diagram for more details.) - Main Power and Service Light Connection Connect the service light AC 24 V AC220 V MCCB...
  • Page 43 POWER CONNECTION Power Connection (When using an induction motor.) - When an induction motor is used as SA (Supply)/RA(Ventilation) motor, the power is supplied to U, V and W of the driver module. <RA Driver Module #1> <SA Driver Module #1> U V W U V W U V W...
  • Page 44 POWER CONNECTION Power Connection (When using a rated motor.) - When a rated motor is used as SA (Supply)/RA(Ventilation) motor, power can be supplied to the motor using the magnetic contactor of the MCC Panel. - When connecting a rated motor. Ground-Fault Circuit-Interrupter Magnetic Contactor...
  • Page 45 COMMUNICATION PCB SETTING Connect the electric wires - Humidifier Solenoid Valve Connection Sol. Humidifier Solenoid Valve Connection AC 24 V 324A 324B AC 220 V MCCB <Control Kit> Control Kit Power Supply, Single Phase 220 V, 60 Hz Sol. Solenoid Valve Circuit Breaker for MCCB Single Phase Wiring...
  • Page 46: Hmi Settings/Installation

    HMI SETTINGS/INSTALLATION HMI SETTINGS/INSTALLATION - In setting the AHU, you can check the sensors used and type of AHU installed and heat source in 'Administrator Settings 2' of HMI. - Enter the 'Administrator Settings 2' page in the following order. 1) Connect power to the Control Kit to be automatically taken to the login page as shown below.
  • Page 47 HMI SETTINGS/INSTALLATION Setting the AHU type 1) Setting the all-fresh-air system type If the installed AHU is an all-fresh-air system, please select All-Fresh-Air System in 'Set AHU Type'. 2) Setting the AHU type If the installed AHU is an air handling system, please select Air Handling System in 'Set AHU Type'.
  • Page 48 (Water Cooled)' if an air cooled outdoor unit is installed. Select 'Hot Water or Steam' when a hot water or steam valve is installed. (The image of LG product will appear on the HIM Out- door Unit Screen it's set to 'Refrigerant'. A valve control value will appear if it's set to Hot Water or Steam.)
  • Page 49 HMI SETTINGS/INSTALLATION Setting the required sensors In order to set the sensors, press the button on the box to see the list of sensors that can be selected. 1) Setting Ventilation (RA) - Click the " " button to see the list of heat sources you can select from as shown below. - Select the type of ventilation sensor installed in Ventilation.
  • Page 50 HMI SETTINGS/INSTALLATION Setting the optional sensor Choose whether the optional You can set the default value sensor will be used or not for the optional sensor. 1) Outdoor Unit (OA) Temperature/Humidity Sensor - If the OA temperature/humidity sensor is not being used, do not check the checkbox Check the checkbox only when using the OA temperature/humidity sensor.
  • Page 51 HMI SETTINGS/INSTALLATION 3) CO Sensor (Default Concentration Level) Settings - When the CO sensor is not used, do not check the checkbox Check the checkbox only when the CO sensor is used. When the CO sensor is not used. When the CO sensor is used.
  • Page 52 HMI SETTINGS/INSTALLATION 4) Filter Differential Pressure Setting - When the filter differential sensor is not used, do not check the checkbox Check the checkbox only when the sensor is used. When the filter differential sensor is not used. When the filter differential sensor is used. - You'll be able to see the filter differential sensor value in the System View only when the sensor is enabled by checking the checkbox.
  • Page 53 HMI SETTINGS/INSTALLATION 5) Set the supply static pressure sensor - When the supply static pressure sensor is not used, do not check the checkbox Check the checkbox only when the sensor is used. When the supply static pressure sensor is not used. When the supply static pressure sensor is used.
  • Page 54: Outdoor Unit Address Setting

    OUTDOOR UNIT ADDRESS SETTING OUTDOOR UNIT ADDRESS SETTING Outdoor Unit Address Setting (When using capacity control) - The address of the outdoor unit must be set when using the Multi V Capacity Control function in the outdoor unit of the AHU. - Check the outdoor unit address setting according to each Multi V Series as shown below.
  • Page 55 OUTDOOR UNIT ADDRESS SETTING Setting the Multi V IV address Set the address of the Multi V IV Model by following the steps below. - Make sure to install the Central Control PI485 on the outdoor unit in order to use the outdoor unit capacity control option.
  • Page 56: System Settings

    SYSTEM SETTINGS SYSTEM SETTINGS Log into System Settings - System Settings - After installing the AHU, you need to set the values necessary for general system operation. This can be done in 'HMI System Settings'. To enter System Settings, you need to first enter HMI Service Settings mode. Follow the steps below to enter the HMI Service mode.
  • Page 57 SYSTEM SETTINGS System Settings 1 - In System Settings 1, you can enable/disable additional functions, set the warm-up time and value for using the Smoke Control mode. - The details are as follows. Additional Functions 1) Damper Feedback - Damper Feedback Settings is used to determine whether to retrieve and display the moni- tored output value of each damper.
  • Page 58 SYSTEM SETTINGS 2) Cooler Humidifier Function - In Cooler Humidifier Function, you can enable/disable the humidifier in Cooling mode when 'Humidifier' mode is selected among other additional functions. - When the Cooler Humidifier Function is not used, do not check the checkbox Check the checkbox only when the humidifier is used.
  • Page 59 SYSTEM SETTINGS 4) Warm-Up Coil - The Warm-Up Coil function is used to block the cold air coming into the room before the fan starts running for heating. Check mark Warm-Up if the warm-up device is installed. - When the Warm-Up Function is not used, do not check the checkbox .
  • Page 60 SYSTEM SETTINGS Warm-Up time 1) Warm-Up time - The warm-up time refers to the time for running the unit only with the indoor air without opening the outdoor and exhaust dampers in order to minimize the time taken to reach the goal temperature after starting the AHU.
  • Page 61 - The Smoke Control mode is used to enter fire alarm input of the installed smoke detector or set the reaction of the damper and fan that receive fire alarm from LG ACP in advance. - When the Smoke Control mode is not used, do not check the checkbox Check the checkbox only when it's used.
  • Page 62 SYSTEM SETTINGS 2) Damper Settings - Damper settings in the Smoke Control mode determine the damper angle that activates when a smoke detection signal is received. - In order to set the warm-up coil type, press the " " button to see the list of damper angles that can be selected.
  • Page 63 SYSTEM SETTINGS System Settings 2 - System Settings 2 determines the temperature, pressure and speed of each sensor installed. - The temperature range must be set because although by default, each of the AHU sensors send and receive signals at DC 0~10V and the voltage range is the same with all the manufac- turers, the actual temperature is different from one another.
  • Page 64 SYSTEM SETTINGS 1) Temperature Range Input - The default value for the lowest temperature is -40 °C, and the temperature can be set be- tween -100 ~ -20 °C at an increment/decrement of 1 °C. - The default value for the maximum temperature is 70 °C, and the temperature can be set between 0 ~ -20 °C at an increment/decrement of 1 °C.
  • Page 65 SYSTEM SETTINGS 3) Enter the Ventilation/Supply Flow Range - The lowest default flow is 0.0 m/s and the input range is 0.0~20.0 m/s, which can be ad- justed at an increment/decrement of 0.1 m/s. - The highest default flow is 20.0 m/s and the input range is 0.0~20.0 m/s, which can be ad- justed at an increment/decrement of 0.1 m/s.
  • Page 66 SYSTEM SETTINGS System Settings 3 - In System Settings 3, you can set the values necessary for linking the Main Control (Auto Con- trol) with the outdoor unit. - In order for the AHU to be linked with the Central Control in the upper section, you need to set the address as well as the number of supply/ventilation fans to be linked and have them re- flected in the HMI.
  • Page 67 SYSTEM SETTINGS - Hexadecimal Digit Address Input Method ③ Enter the desired input value by using the key button. * Click the Convert button to switch between the Number and Hexadecimal buttons. ④ Enter the value and then click the 'OK' button to enter the input value.
  • Page 68 SYSTEM SETTINGS 3) Set the number of fans The supply/ventilation fans of the AHU can be linked to up to 6 fans according to the capac- ity. The number of HMI fans is set according to the settings to be monitored. Enter the value and then click the 'OK' button to enter the input value.
  • Page 69 SYSTEM SETTINGS 4) Set the fan activation conditions in Defrost mode The supply fan stops according to the supply temperature when the AHU is in the Defrost mode. It can be activated according to the pipe temperature, and the conditions for starting/stopping a supply fan can be set as shown below.
  • Page 70 SYSTEM SETTINGS 5) Set the lowest value for cold/hot water valves The minimum required value for linking valve control is different by site, so the minimum value for the cold/hot water valves can be set separately. It can be set between 0 and 100% in the ComboBox below. Click the button to set the minimum value for the cold/hot water valves.
  • Page 71 SYSTEM SETTINGS System Settings 4 - In System Settings 4, you can test run the AHU after the installation and settings are complete. The installation conditions can be checked through the input/output values for each of the major fan, damper and other additional operation functions. 1) Select the Test Run mode You can start the Test Run mode by selecting 'Start Control' and revert back to the Normal mode by selecting 'Cancel Control'.
  • Page 72 SYSTEM SETTINGS 2) Check Fan Operation You can check the supply/ventilation fan installation status and fan operation. ④ Click the 'Apply' button after setting the input value to start the fan. ① Click the box to open a screen where the setting can be set/entered.
  • Page 73 SYSTEM SETTINGS 3) Check Damper Operation Here, you can check the damper installation and wiring status. ④ Click the 'Apply' button after setting the input value to change the angle of the re- spective damper. ① Click the box to open a screen where the setting can be set/entered.
  • Page 74 SYSTEM SETTINGS 4) Check Valve Operation (DC Type) Here, you can check the installation and wiring status of each valve and heater for freeze pro- tection. ④ Click the 'Apply' button after setting the input value to apply the value in the load. ①...
  • Page 75 SYSTEM SETTINGS 5) Check Valve Operation (Contact Type) Here, you can check the installation and wiring status of each valve and heater for freeze pro- tection. ③ Click the 'Apply' button after setting the input value to apply the value in the load. ①...
  • Page 76: Log Into Hmi

    Log into HMI The HMI starts automatically as soon as the power supply is connected. After it's turned on, the LG Logo screen will be displayed prior to the Log In screen as shown below. Administrator log in User log in...
  • Page 77 LOG INTO HMI Follow the steps below to log in as the Administrator. 1. Click the 'Administrator' button to open a screen where you can enter your password. 2. Enter the 4-digit password in the input box and then click 'OK' to enter the Administrator mode.
  • Page 78 LOG INTO HMI User log in Follow the steps below to log in as the User. 1. Click the 'User' button to log in without having to enter the password. The user will be logged in without having to enter the password by clicking the 'User' button.
  • Page 79: Hmi Menu

    HMI MENU HMI MENU Common upper menu The HMI has a common menu that's displayed at the top and bottom in a full screen. This chapter describes the common menu. Optional Functions Icon Description It displays the status of the currently logged in mode. When you press this button, it returns to the log-in initial screen from the cur- rently logged-in mode.
  • Page 80 HMI MENU Common bottom menu Icon Description When you press “Home” button, it moves to HMI main screen. It displays the currently entered menu, and when it entered main screen, it is displayed as in the left. When you press “Schedule” button, it moves to schedule screen. It displays the currently entered menu, and when it entered schedule screen, it is displayed as in the left.
  • Page 81: Hmi Home Screen

    HMI HOME SCREEN HMI HOME SCREEN View System After logging in, you'll first enter the main screen, where you'll be able to see the status of over- all AHU system. You can enter by clicking the 'Home' button and then the 'View System' button in the Common Menu at the bottom.
  • Page 82 HMI HOME SCREEN See Details Click the See Details tab after selecting 'Home' to enter the Details page. ① ① ③ ⑥ ④ ② ⑦ ⑤ Icon Description Displays the desired temperature/humidity set by the Administrator. ① Desired Displays the desired ventilation/supply according to the ventilation/sup- (Ventilation/Supply) ply standards.
  • Page 83 HMI HOME SCREEN Outdoor Unit Status Click the Outdoor Unit tab after selecting 'Home' to enter the Details page. Here, you can check the status of the outdoor unit linked to the AHU. ① ② Address Address Address ③ Operation Operation Operation ④...
  • Page 84: Hmi Schedule

    HMI SCHEDULE HMI SCHEDULE Schedule Main Screen This chapter describes the Schedule function for managing the AHU schedule. Click the Schedule button in the common menu at the bottom to enter the main screen of the Schedule. ④ ⑤ ① ②...
  • Page 85 HMI SCHEDULE Schedule Main Screen The product operation mode must be set to 'Schedule' in order to use the Schedule function. Apply the schedule in the order below. 1. To use the Schedule function, set the Control Mode of Administrator Settings 3 to 'Schedule'. Select 'Schedule' as the Control mode.
  • Page 86 HMI SCHEDULE Apply the Schedule 3. Select the scheduling pattern you wish to use and then click the 'Apply' button to open a win- dow asking whether you want to apply the pattern in the schedule. Select 'Schedule' as the Control mode. 4.
  • Page 87 HMI SCHEDULE Create/Modify the Scheduling Pattern Follow the steps below in order to create and modify the scheduling pattern. 1. Enter the Schedule Main Screen and click the 'Edit' button located on the right side of the pat- tern to be created or edited. Create the 'Edit' but- ton and click the but- ton on the right side...
  • Page 88 HMI SCHEDULE 3. Select the day you wish to create or correct Edit Schedule, and then add, correct or delete the scheduling pattern. Create the 'Edit' but- ton and click the but- ton on the right side of the pattern to be edited.
  • Page 89 HMI SCHEDULE - The following information message will appear if you click the 'Add' button without changing the Time Settings. - The following information message will appear if you don't set the start and end time cor- rectly. - An information message shown below will appear when more than 6 daily scheduling pat- terns are added.
  • Page 90 HMI SCHEDULE 3-2) Delete Daily Schedule - You can delete a daily schedule in the order below. ① Select the schedule to be deleted. ② Click the 'Delete' button. ③ Click the 'Save' button to save the content. - The following information message will appear if you click the 'Delete' button without select- ing Daily Schedule.
  • Page 91 HMI SCHEDULE 3-3) Correct Daily Schedule - You can correct a daily schedule in the order below. ① Select the schedule to be corrected. ② Set the desired ON and OFF time. ③ Click the 'Correct' but- ton. ④ Click the 'Save' button to save the content.
  • Page 92 HMI SCHEDULE 4. Create a schedule by adding, deleting or correcting according to the selected week, and then click the Save mode to enter the Schedule screen. Selected Weekly Schedule 5. Check the Weekly Schedule and then click the 'Previous Menu' button to move to the Sched- ule Main Screen.
  • Page 93: Hmi History

    HMI HISTORY HMI HISTORY History Screen This chapter describes the screen that shows the alarm history if alarm is coming from the prod- uct. ① ② ③ Classification Description ① Delete All This button is used to delete all the history of the saved alarm. ②...
  • Page 94: Hmi Setting

    HMI SETTING HMI SETTING Administrator Settings 1 In Administrator Settings 1, you can set the basic options necessary for product operation. 1. Set Control Temperature Conditions Set the conditions of the desired temperature. The conditions of the desired temperature can be adjusted by using the ventilation and supply temperatures.
  • Page 95 HMI SETTING 2. Cooling (Heating) Ventilation Temperature/Humidity Settings ② Humidity Settings ① Temperature Settings ① Temperature Settings The default cooling/heating temperature is 18.0 °C/16.0 °C, and it can be adjusted at an in- crement/decrement of 0.1 °C between 18.0 °C/16.0 °C and 30.0 °C Temperature (humidity) cannot be set in the following cases.
  • Page 96 HMI SETTING 3. Cooling (Heating) Supply Temperature/Humidity Settings ③ Humidity Settings ① Temperature Settings ② Set the Control Range ① Temperature Settings The default cooling/heating temperature is 18.0 °C/30.0 °C, and it can be adjusted at an in- crement/decrement of 0.1°C between 12.0 °C/50.0 °C and 50.0 °C Temperature (humidity) cannot be set in the following cases.
  • Page 97 HMI SETTING 4. Wind Speed Settings The supply/ventilation fan will start according to the designated wind speed when using the product. The wind speed can be set to High, Medium and Low. ① High Settings ② Medium Settings ③ Low Settings 5.
  • Page 98 HMI SETTING 6. Cooling Mode Damper Angle When using the Cooling mode, set the damper angle in the Normal mode after the warm-up time. ③ Mixing Damper Settings ① Outdoor Damper Settings ② Exhaust Damper Settings ① Enter the desired input value by using the key button.
  • Page 99 HMI SETTING 7. Heating Mode Damper Angle When using the Heating mode, set the damper angle in the Normal mode after the warm-up time. ③ Mixing Damper Settings ① Outdoor Damper Settings ② Exhaust Damper Settings ① Enter the desired input value by using the key button.
  • Page 100 HMI SETTING 8. Ventilation Mode Damper Angle When using the Ventilation mode, set the damper angle in the Normal mode after the warm- up time. ③ Mixing Damper Settings ① Outdoor Damper Settings ② Exhaust Damper Settings ① Enter the desired input value by using the key button.
  • Page 101 HMI SETTING Administrator Settings 3 - Administrator Settings 3 (refer to page 50 for Administrator Settings 2) - In Administrator Settings 3, you can choose the control methods and conditions for the supply/ventilation fans. 1. Fan Control Method Select the fan control method. Two different conditions cannot be selected simultaneously, and the fan operation method is determined by the selected condition.
  • Page 102 HMI SETTING 2. Inverter Fan Control Conditions Select the method of controlling the supply/ventilation fan operation frequency. Three different conditions cannot be selected simultaneously, and the supply/ventilation fan operation frequency is determined by the selected condition. - When fan speed is selected: Control the fan in accordance with the selected wind speed. - When temperature is selected: Control the fan in accordance with the desired/current tem- perature.
  • Page 103 HMI SETTING ① Enter the desired input value by using the key button. ② Enter the value and then click the 'OK' button to enter the input value. - Set the Static Pressure Cycle The default static pressure control cycle is set to 5 minutes, and the cycle can be set within the range of 3~60 minutes.
  • Page 104 HMI SETTING 5. Set the Temperature-Based Wind Speed The frequency is determined by the difference between the desired and current temperature, and the control cycle and setting steps are as follows. - Ventilation/Supply 30~60Hz Can be Set, Default Value: 50Hz - Control Cycle 1~60 Min.
  • Page 105 HMI SETTING Administrator Settings 4 - For Administrator Settings 2, refer to page 47 of the Manual. - Administrator Settings 4 is for product operation mode and HMI environment settings. 1. Set the Control Mode The Control Mode is used to set the main body of product operation. Click the Select button as shown below to see the Control Mode for product operation.
  • Page 106 Use the terminal blocks C22A and communication terminal C22B in the Modbus Mode. For more details, refer to the Wiring Diagram and attached Modbus Communication Protocol. - When the LGAP Mode is selected: Can be linked to LG's Central Control applied with LGAP Protocol.
  • Page 107 HMI SETTING 3. Change the Administrator Password The password is not set in the default HMI for the Administrator. When logging in for the first time, click the 'OK' button in the Password Box to log in as the Administrator. After logging in without a password for the first time, make sure to create a password in Ad- ministrator Settings 3 to change the password setting.
  • Page 108 HMI SETTING 4. Calibrate Touch Coordinates While using the HMI touch screen, there are occasions when the selected screen location is different from the actual operation location. In this case, click the 'Calibrate Touch Coordinates' button to move to the screen where you can calibrate the touch coordinates by following the instructions on the screen.
  • Page 109 HMI SETTING - Once you have finished the calibration process by using the '+' sign, the following screen will appear. Once the screen calibra- New calibration is completed. tion is completed, you'll get the message "New calibration is completed." Touch the screen to exit ┼...
  • Page 110 HMI SETTING 5. Software Upgrade In the HMI, you can easily upgrade the HMI by using the S/W Upgrade feature. You can upgrade the software by following the steps below. Click the 'Upgrade' button to auto- matically start the upgrade. ※Before clicking the 'S/W Upgrade' button, you need to first insert the USB device containing the file to be upgraded into the HMI USB port.
  • Page 111 HMI SETTING - Click the 'OK' button, and you'll see a message box displaying the time required for the up- grade. Click the 'OK" button and a message box showing the estimated time will appear. Click the 'OK' button again to move on to the next step.
  • Page 112 HMI SETTING Move on to the next step once it's 100% complete. Click the 'OK' button to complete the upgrade process and restart the system. - You will be moved to the login screen after the system restarts.
  • Page 113: Hmi Product Information

    HMI PRODUCT INFORMATION HMI PRODUCT INFORMATION Administrator Settings The current HIM version as well as the total run time are displayed in the Product Info page. Displays the current HMI software version. Displays the total run time.
  • Page 114 HMI PRODUCT INFORMATION Standby Screen The HMI enters the Standby Screen mode if the screen is not touched for 10 minutes. It displays the status of operation and settings as shown below. Classification Description ① Operation Status Displays the current operation status. ②...
  • Page 115 HMI PRODUCT INFORMATION Alarm Screen The HMI opens a screen displaying the alarm when an alarm is triggered. ① ② ③ Communication Error Classification Description Displays the second, minute, hour, date, month and year of the ① Time of Occurrence alarm.
  • Page 116: Lcd Screen

    LCD SCREEN LCD SCREEN Using the Main Control LCD The LCD screen has 6 buttons as shown below. The LCD screen has the following components. <Main Screen> <Select Screen> START Command sets Start/Stop AHU. Command STOP COOL HEAT Mode sets AHU operation mode. Mode OUTDOOR DEHUMIDY...
  • Page 117 LCD SCREEN The LCD screen describes each item. Classification Description The LCD screen displays the product status and settings. The 'Set' button is used to select the items and moving to the lower level for setting the control values. This button is for moving to the upper level from the current level in the screen.
  • Page 118 LCD SCREEN ① ② ③ ④ Classification Description ① R.A. Temp. Displays the AHU Ventilation Temperature Sensor value. ② S.A. Temp. Displays the AHU Supply Temperature Sensor value. ③ O.A. Temp. Displays the AHU Outdoor Unit Temperature Sensor value. ④ M.A. Temp. Displays the AHU Mixer Temperature Sensor value.
  • Page 119: Appendix

    APPENDIX APPENDIX The protocols provided for linking the outdoor units with Modus are as follows. - Physical Layer: RS-485 Serial Line - Mode: MODBUS RTU Mode - Baud Rate: 9 600 - Parity: None Parity - 1 Stop Bit - Applied Function Code Start Address form Function Code Sub Function...
  • Page 120 APPENDIX Coil Register Register Content Remarks Start 0: Stop / 1: Operation Discrete Register Register Content Remarks 10001 Ventilation Fan Operation Status 0: Stop, 1: Start 10002 Supply Fan Operation Status 0: Stop, 1: Start 10003 Smoke Detection 0: Not Detected, 1: Detected 10004 Replace Filter 0: Normal, 1: Replace...
  • Page 121 APPENDIX Input Register Register Content Remarks 30001 AHU Version Display AHU Controller Version 30002 Error in AHU AHU with an Error (fixed at 1) 30003 Error in Device Device with an Error (fixed at 1) 30004 Error Code Error Code for the Device Run Time Main Data 30005 Total Run Time (Main)
  • Page 122 APPENDIX Register Content Remarks 30031 Supply FAN 1 Operation Frequency 30032 Supply FAN 2 Operation Frequency 30033 Supply FAN 3 Operation Frequency 30034 Supply FAN 4 Operation Frequency 30035 Supply FAN 5 Operation Frequency 30036 Supply FAN 6 Operation Frequency 30037 Reserved 30038...
  • Page 123 APPENDIX Register Content Remarks 40002 Operation Mode Settings 40003 Optional Operation Mode 40004 Wind Speed Settings 40005 Control Mode Settings 40006 Remote Mode Settings 40007 Set Desired Cooling Temperature 40008 Set Desired Heating Temperature 40009 Set Desired Humidity Temperature 40010 Set Desired Temperature...
  • Page 124 APPENDIX Self-Diagnosis Error Display Unit - This feature diagnoses the product and displays the type of error when the product is malfunc- tioning. - Place an error mark in the HMI. - Display in the order of error number if there are more than two types of errors. - The error code disappears when repaired after an error.
  • Page 125 APPENDIX Controller Error Error Error List of Errors Cause Code Level The point of contact for fire detection is shorted (Displays the error and runs in HMI Smoke CH100017 Fire Detection (Smoke Detector) Detection settings.) The emergency stop for emergency stop is shorted (Displays the error and shuts down all CH10002 Emergency Stop Detection the activities.) CH10003 HMI Communication Error...
  • Page 126 APPENDIX Error Error List of Errors Cause Code Level CH12002 ODU2 Indoor Sensor (Inlet Pipe) Error The inlet temperature sensor of Indoor Unit #2 of COM #1 is disconnected/short circuited. ODU2 Communication Error Indoor Unit #2 of COM #1 is unable to receive the communication signal from the outdoor CH12005 (Indoor Unit ↔...
  • Page 127 APPENDIX Ventilation Fan_Motor Driver Error Error List of Errors Cause Code Level Communication Error in Ventilation Fan PCB CH18x01 Unable to receive the communication signal from Ventilation INV for more than 1 minute. (Main ↔ Inv) CH18x79 Failed to Start Ventilation Fan PCB Failed to start due to an error or overcurrent in the ventilation INV Fan Motor Overcurrent (Phase Current) in Ventilation CH18x77...
  • Page 128 APPENDIX List of GHP Error Codes Error Type Error Code Conditions for Cause Indoor unit air temperature sensor defect CH1x001 Sensor Open/Short Indoor unit pipe inlet temperature sensor defect CH1x002 Sensor Open/Short Wired remote controller and indoor unit communication defect CH1x003 Wired remote controller did not receive indoor unit communication signal Indoor unit drain defect...
  • Page 129 APPENDIX Error Type Error Code Conditions for Cause Compressor 1 outlet temperature sensor defect CH1x041 Sensor Open: decide 3 min. after Comp start Sensor Short: decide immediately Low pressure sensor defect CH1x042 Sensor Open/Short High pressure sensor defect CH1x043 Sensor Open/Short Outdoor unit air temperature sensor defect CH1x044 Sensor Open/Short...
  • Page 130 APPENDIX Error Type Error Code Conditions for Cause Fan board communication error CH1x105 Main PCB has no communication with Fan PCB Fan PCB IPM Fault error CH1x106 Fan PCB H/W over-current is decided Fan DC link low voltage error CH1x107 Fan PCB detected DC link voltage is below standard value Fan board communication error CH1x108...
  • Page 131 APPENDIX Error Type Error Code Conditions for Cause RPM difference problem CH1x161 RPM has difference of 200RPM between problem EC_RPM and ET_RPM for 120 seconds Exhaust gas high temperature problem CH1x162 Exhaust gas temperature of 130°C or more is maintained for 10 seconds 15MH_Comp defect CH1x163 At Clutch (15MH Clutch) ON point, EC_RPM of 500 or less is maintained for 2 seconds (error detection for 5...
  • Page 132 APPENDIX Error Type Error Code Conditions for Cause Oil separator oil temperature sensor defect CH1x183 Sensor open/short Input/output flat pressure problem CH1x186 During the flat pressure standby, if difference of compressor inlet/outlet pressure is maintained exceeding condition of 300kPa at hot gas valve ON point for 10 minutes...
  • Page 133 APPENDIX Multi V error code list Error Code Error name CH1x001 Indoor unit air temperature sensor defect CH1x002 Indoor unit pipe inlet temperature sensor defect CH1x003 Wired remote controller and indoor unit communication defect CH1x004 Indoor unit drain defect CH1x005 Outdoor unit/indoor unit communication defect CH1x006 Indoor unit pipe outlet temperature sensor defect...
  • Page 134 APPENDIX Error Code Error name CH1x044 Outdoor air temperature sensor open/short CH1x045 Outdoor pipe (Top) sensor open/short CH1x046 Compressor inlet temperature sensor open/short CH1x047 Fixed speed No.1 compressor outlet temperature sensor defect Heat exchanger temperature sensor (Bottom) CH1x048 (Super3: fixed speed No.2 compressor outlet temperature sensor defect) Outdoor voltage sensor error CH1x049 (Super3: IPM temperature sensor defect)
  • Page 135 APPENDIX Error Code Error name CH1x077 Fan over-current error CH1x078 Fan Hall sensor error CH1x079 Fan start-up failure error CH1x080 Louver motor over-current CH1x081 Louver limit S/W error CH1x082 A cycle low pressure error CH1x083 B cycle low pressure error CH1x084 A cycle high pressure error CH1x085...