LG ARND30UDBE4 - User Manual

5 Table2. Keypad Description Keypad Description Button Description Functions Main Menu Press to go directly to the Main Menu from any screen. From the Main Menu, navigate to the following screens:  Unit Enable  Unit Status  Crtl Variables  Alarm Menu Alarm The Alarm button flashes when there is ...

6 Main Menu The Menu Map shows screen order when using either the Handheld Keypad or the Virtual Keypad / Display on the web interface. See the Navigation section for instructions about moving through menu screens . Table3. Main Menu

7 SEQUENCE OF OPERATION The microprocessor controller can be configured for energy recovery, and dedicated outdoor air systems. All set points, lockouts and delays are user adjustable via the integral keypad display or web user interface GENERAL OPERATION UNIT START COMMAND The microprocessor contro...

8 SET POINT CONTROL (Unoccupied) With an unoccupied recirculation damper and optional space temperature and/or humidity sensors, the unit will cycle on to maintain the unoccupied space set points.  Unoccupied Heating: The unit is enabled when the space temperature is less than the unoccupied heatin...

9 SUPPLY FAN SEQUENCE The factory installed BLDC Inverter PCB is wired to the controller. Supply fan speed needs to be set during test and balance of the unit. The following sequences are selectable for supply fan control. The fan speed in constrained by its min and max speed set points.  Constant ...

10 Controller Overview Identifying Input and Output Terminals The following terminal markings are on the control boards and indicate: • DI: Digital Inputs (DC: Normal Close / DO: Normal Open) • DO: Digital Outputs (DC: Normal Close / DO: Normal Open) • AI : Analog Inputs • AO: Analog Outputs • UI : ...

14 UNIT STATUS The microprocessor controller will revert to a default main menu loop. This loop includes several screens to view the operating conditions of the unit. Scroll through the menu screens by using the buttons. THE INITIAL MENU SCREEN DISPLAYS THE JOB NAME, UNIT TAG, UNIT STATUS, OUTSIDE A...

16 TEMPERATURE CONTROL The controller is equipped with several menus to help guide users with altering program parameters. The following menus can be accessed by pressing the button. To enter the desired menu, press the button. Unit Enable The Unit Enable menu allows the user to enable and disable t...

17 DEHUMIDIFICATION HEATING LOCKOUT This screen displays the heating lockout temperature. Heating will be disabled when outside air is above the lockout temperature (80°F). SPACE SET POINTS DURING UNOCCUPIED MODE The controller will have separate screens for unoccupied cooling and heating set points...

18 DAMPER CONTROL DEHUMIDIFICATION TIMERS This screen allows adjustment for delay and min on time for dehumidification mode. Times are in place to prevent short cycling between dehumidification and other control modes. COLD COIL SET POINT This screen displays the temperature set points for the cooli...

19 FAN CONTROL The Supply Fan Control menu allows the user to adjust exhaust control set points SUPPLY FAN SPEED The speed set point is the proportional percentage of the RPM or Direct CFM Value Min speed = 50% Speed Max speed = 100% Speed Set Point Selections: Constant Volume- The fan speed will be...

22 ADVACNED CONTROL The Advanced Control Menus allows the user to view and adjust Tempering, Fan, Damper, Economizer and CO2 control cycle and cycle unit. TEMPERATURE CONTROL This screen allow to change the Control cycle which is to determine the operation mode. (e.g. Every 180 seconds, unit checks ...

25 SETTINGS The Settings menu allows the user to view and set Date/Time, Unit of Measure, e.PCo board address, Password, unit initialization, Application info and DOAS model settings. DATE/TIME CHANGE This screen allows the user to view and change the date/time and time zone. UNIT MEASUREMENT This s...

26 SOFTWARE UPDATE Connecting to USB Driver The controller has built-in USB ports for connecting to USB drives. The USB drives can be used for backing up all settings and reported conditions such as alarm history and current values. Note: When uploading wrong type of file, Error could be occurred an...

27 WEB USER INTERFACE The Web User Interface allows access to the unit controller through the building network. Reference Ctrl Variables>Advanced>Network Settings to set the IP network protocol. Once proper communication is established, the user can click on the follow tabs: Overview Unit – Di...

28 Menu Bar ( ① ) This is the area that displays the menu of DOAS Web UI. The menu composition is as follows. Menu Category Menu Access rights Overview Unit All ODU Service Manager, Manufacturer Trend Logged Trend All Live Trend All Alarm All Unit Display All Settings All Support Manual All Dew poin...

29 Control Variables User can set the following 3 control points of DOAS Unit. ① Unit ON/OFF: User can adjust “Enabled/Disabled” of DOAS Unit. ② Occupancy: User can adjust occupancy manually “Occupied / Unoccupied.” ③ Temperature Setpoint: User can adjust temperature setpoint. Monitoring Displays th...

30 ① Displays the outdoor unit information. ② Displays the brief information of Outdoor unit status as a chart. - High / Low pressure, Compressor Hz and Fan Speed (RPM) data is displayed. Overview > Outdoor Unit Displays the control points and trend chart of outdoor unit and Live Trend

31 The Logged Trend screen consists of the following three areas. Inquiry Control Panel ( ① ) Trend Selection – Select Logged Trend to inquiry. Select Time Period – Select the period to inquiry (1~10 days can be selected) Start/End Time is automatically set when selected. Start / End Time – Set the ...

32 The Logged Trend screen consists of the following three areas. Point Lists ( ① ) A list of control points available for Live Trend is displayed, and user can select the control points to be displayed on the chart. (Max 10) Deselect All – Deselect all control points selected for display on the cha...

33 Alarms Categories are: - Device Error (Error in Main Module) - Fieldbus Communication Alarm (Communication Error with Main Module). - Al_retain (Error in the number of retain memory writings) - Al_Err_retain_write (Error in retain memory writings) Note: Alarm of “retain” and “Err retain write” is...

35 Support > Manual Display the Sequence Manual.

36 Unit of Measure – Select temperature unit. Calculator – Select the calculation object. Temperature – Set the temperature value. Relative Humidity – Set the Relative Humidity value. Dewpoint – Set the Dewpoint value . Support > Dew point Calculator A calculator with three sliders to determine t...

37 Control Button ( ① ) Factory Reset – All control variables reset to factory default. Import – Load the Saved control variables setting value Export –Save the current control variables setting value at a CSV file. Configuration ( ② ) 1. Unit Configuration Occupancy Control Method – Set Occupied/Un...

38 3. Function CO2 Interlocking Control – Enable/Disable the CO 2 interlocking Function Setpoint – Target Space CO 2 set point Fan Stop Setpoint – Space CO 2 set point of Fan stop Hysteresis –CO 2 Value hysteresis. Control Feedback Cycle (sec.) – Set CO2 interlocking control cycle. Fan Control Step ...

40 Control Button ( ① ) Factory Reset – Request Factory Reset to Main module. The main module initialize all set point values to factory default values. Import – When clicked, the file open dialog is displayed. If you click the open button after selecting the valid csv file, the current values of al...

BACnet/Modbus Points List TABLE4. BACnet / Modbus Points List TABLE : BACNET / MODBUS POINTS LIST FOR DOAS UNITS Variable Description Active Text Inactive Text BACNET MODBUS Access COV Increment Index Register Type Size x 0.1 Required InputRegister I000_MainModule_SW_Version Main Module Software Ver...

Open Source Software Notice Open Source Software Notice OSSNotice-3095_DOAS_CarelController_1.0.0.0_200921.html This product from LG Electronics, Inc. contains the open source software detailed below. Please refer to the indicated open s ource licenses (as are included following this notice) for the...

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FCC Statement Note: The Controller in this equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a com...

US Please call the installing contractor of your product, as warranty service will be provided by them.