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AIR

CONDITIONER

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.

www.lghvac.com

www.lg.com

Copyright © 2021 LG Electronics Inc. All Rights Reserved.

ENGLISH

SE

Q

UENCE MANUAL

CO

NTROLLER

MFL

71810502

Rev.00

LG SPLIT COMPACT DEDICATED OUTDOOR AIR SYSTEM(DOAS)

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Содержание ARND153DCR4

Страница 1: ...ance with the national wiring standards by authorized personnel only Please retain this installation manual for future reference after reading it thoroughly www lghvac com www lg com Copyright 2021 LG Electronics Inc All Rights Reserved ENGLISH SEQUENCE MANUAL CONTROLLER MFL71810502 Rev 00 LG SPLIT COMPACT DEDICATED OUTDOOR AIR SYSTEM DOAS ...

Страница 2: ...w for easy setup and commissioning The sequence parameters are fully adjustable Refer to the Sequence of Operation for details BMS Communication The user can remotely adjust set points view unit status points and alarms The microprocessor controller is capable of communicating over several protocols BACnet IP Modbus RTU Reference Points List for a complete list of BMS points Alarm Management The m...

Страница 3: ...ROL 16 DEHUMIDIFICATION 17 DAMPER CONTROL 18 FAN CONTROL 19 OCCUPANCY 20 ECONOMIZER 20 CO2 INTERLOCK 21 ADVANCED 21 COIL CONTROL 22 SENSOR SETTINGS 22 NETWORK SETTINGS 23 ADVACNED CONTROL 24 ALARM 25 SETTINGS 26 SOFTWARE UPDATE 27 WEB USER INTERFACE 28 BACNET MODBUS POINTS LIST 43 OPEN SOURCE SOFTWARE NOTICE OSSNOTICE 3095_DOAS_CARELCONTROLLER_1 0 0 0_200921 HTML 45 ...

Страница 4: ...rmation and unit operation status appears here Four Quadrants These quadrants have information that may change every three 3 seconds depending on options and sensors installed Upper Left Quadrant Displays the current value of the primary control variable For example this could be supply air temperature room air temperature return air temperature or coil leaving temperature Upper Right Quadrant Dis...

Страница 5: ...splay on web interface only These two buttons on the virtual keypad display are used to simulate two button actions on the handheld keypad display To simulate pressing two buttons simultaneously 1 Click on 2 Button Click 2 Then sequentially click on two keypad buttons Main Alarm Escape Up Enter Down To simulate pressing and holding two buttons simultaneously 1 Click on 2 Button Click 2 Then sequen...

Страница 6: ... 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 6 ...

Страница 7: ...Tempering outputs immediately revert back to their off value while Dampers remain open if equipped and fans continue to run until The supply air temperature falls below the soft shutdown enable set point minus 5 0 F or The soft shutdown delay timer has expired UNIT SYSTEM DISABLED COMMAND The unit becomes disabled due to the following The unit was disabled from the controller s Unit Enable screen ...

Страница 8: ...t is required the reversing valve is switched and the compressors are staged to maintain the supply air temperature set point Defrost Periodically the ASHP need to initiate a defrost cycle to remove accumulated frost from the outside coil when operating in heating mode Note During Outdoor Unit in Defrost Mode Fan Operation can be set Fan Stop Minimum Air flow rate Normal ECONOMIZER if equipped If ...

Страница 9: ...CULATED AIR DAMPER SEQUENCE if equipped If equipped with a modulating outdoor air and recirculated air damper the recirculated air damper will operate inverse of the outdoor air damper The outdoor air damper will open to a Minimum Outdoor Air Position Min OA when in occupied mode If equipped with BMS communications the user can also directly reset the damper position up to the maximum OA position ...

Страница 10: ...mal Close DO Normal Open AI Analog Inputs AO Analog Outputs UI Universal Inputs UO Universal Outputs RI Resistance Input Control Board Terminal Connections See image below for general board layout See the tables on the following pages for standard terminal connection points See the wiring schematics shipped with the unit for factory configured terminal connection points for all unit CAREL Controll...

Страница 11: ...Pressure Sensor RTD only For EA flow rate monitoring CFM Modulation 0 10Vdc UI7 Unassigned 0 10Vdc UI8 Space CO2 Level 0 10Vdc 0 3000ppm 4 DI1 Forced Stop NC Open Unit Stop DI2 Unit On Off NO Closed Unit Enable DI3 Float Switch NC Open Unit Stop 5 AO1 Outside Damper output RTD Only 0 10Vdc 0 100 AO2 Exhaust Damper output RTD Only 0 10Vdc 0 100 AO3 Recirculation Damper output RTD Only 0 10Vdc 0 100...

Страница 12: ...ace Return Duct Relative Humidity Field Option 0 10Vdc 146 210F 1 Damper position feedback LG Controller NTC Module Drawing Reference Label Unit Connection8 Sensor Type Position Indicates Range 2 CH1 CH1 port of Other module for communication RS485 3 RI1 Unassigned NTC 5k 146 210F RI2 Unassigned NTC 5k 146 210F RI3 Outdoor Air Temperature NTC 10k 146 210F RI4 Leaving Air Temperature Main Coil 1 NT...

Страница 13: ...Step Control 0 1350 2 Reheat Coil Drawing Reference Label Unit Connection Type Position Indicates Range 2 CH1 CH1 port of Other module for communication RS485 CH2 IDU_Bus_A B RS485 3 RI1 Reheat Coil Refrigerant temperature Pipe In NTC 5k 146 210F RI2 NTC 5k 146 210F 4 EEV1 Unassigned EEV2 Reheat Coil EEV Step Control 0 1350 13 Main Coil Refrigerant temperature Pipe In Main Coil Refrigerant tempera...

Страница 14: ...DED POSITION RTD only This screen displays current position of the OA Recirculation and EA dampers SUPPLY FAN STATUS This screen displays the fan proving status Supply Air flow monitoring and the supply fan ramp being sent from the controller to the Inverter Fan PCB The controller can modulate the fan between the min and max speeds by Capacity or Air volume CFM ACTIVE SETPOINT This screen display ...

Страница 15: ...e dew point or outside dew point Inside RH and inside dew point Inside RH and inside dew point or outside dew point Available during unoccupied mode HGRH RAMP This screen will display the status of the hot gas reheat ramp The screen includes the active set point supply air discharge temperature the ramp status and hot gas reheat valve request being sent from the controller RECOVERY COIL RAMP RTD o...

Страница 16: ...e supply discharge set point is a constant value e g 72 F Reference Temperature Set point screen for set point adjustment Space Reset The controller will reset the supply air temperature set point to maintain the space temperature set point requires space temp sensor Reference the Temperature Set point screen for space set point adjustment TEMPERATURE SET POINT This screen allow to set target temp...

Страница 17: ... OCCUPIED Possible Modes Inside RH Inside dew point Outside dew point Inside RH or inside dew point Inside RH or inside dew point or outside dew point Inside RH and inside dew point Inside RH and inside dew point or outside dew point Available during unoccupied mode There must be a constant call for dehumidification for the duration of the enable delay for dehumidification mode to become enabled T...

Страница 18: ...tive a Heating If priority is set to heating box in checked the unit locks out dehumidification while heating is active b Dehumidification If priority is set to dehumidification box is not checked the unit is allowed to switch to dehumidification when heating is active HGRH Enable Determines when unit is allowed to Reheat when Dehumidification is active The Damper Control menu s allows the user to...

Страница 19: ... open ERW stop and Supply fan continue to run until The auto dry active timer has expired FAN OPERATION IN DEFROST MODE During a ODU in defrost mode the following will occur Dampers remain open and fans continue to run until exit the defrost mode Fan operation mode during defrost mode can be changed Stop Minimum 50 Normal maintain Target airflow rate The Exhaust Fan Control menu allows the user to...

Страница 20: ...he user to enable disable modes of operation when in unoccupied recirculation control The Economizer menu allows the user to enable the Economizer mode and adjust control parameters which includes economizer control mode and set point ECONOMIZER CONTROL VARIABLES The user can select the economizer control method from the following options Outside Dry Bulb Economizing is allowed when the outside dr...

Страница 21: ...eflecting the hysteresis in the target value The Advanced menu allows the user to access several submenus regarding controller information and unit configuration Submenu options are read only and will require the user to input proper login criteria The service password 7600 is required to change service access menus Consult factory for factory level access The Unit Configuration Settings Menus all...

Страница 22: ...an be read SPACE SENSORS This screen allows to set the 3rd party sensor installation status Installed Not installed and Min Max value of sensor if equipped 0 10Vdc Type Temp Sensor Note The minimum maximum values specified in the sensor manufacturer must be entered if equipped 0 10Vdc Type Sensor Except NTC type temperature sensor is installed LG guide MAMAC ST 203 EX120 DIFFERENTIAL PRESSURE SENS...

Страница 23: ...will appear if the unit is set for BACnet IP and allows the user to set the device instance number and port settings default port 47808 MODBUS ADDRESS SETTING This screen will appear if the unit is set for Modbus address and allows the user to set device ID number Note Modbus Slave Address device ID when connecting with Higher System DOAS Address Device No under One ODU system 23 ...

Страница 24: ...ential pressure sensor is equipped e g Every 30 seconds unit checks the Air Volume and modulates by plus minus 2 to maintain target Exhaust CFM value DAMPER CONTROL RTD only This screen allow to change the judgment cycle of Economizer mode e g Economizer mode is enabled and set point is 65F outside DB then every 180 seconds unit checks the OA condition to check whether enter Economizer mode or not...

Страница 25: ...annot be cleared the cause of the alarm has not been fixed Press the up and down buttons to view any additional occurring alarms RESET ACTIVE ALARMS This screen allows the user to clear active alarms ALARM EVENT HISTORY This screen allows the user view recent alarms To view all saved alarms press the down button to enter the data logger ALARM EXPORT This screen allows the export the alarm lists wh...

Страница 26: ...r without a network protocol provided with the unit This screen allows the user to configure the IP setting for BMS and or when the Web User Interface will be utilized The controller may have a DHCP server assigned address or a manually assigned static IP address Factory settings are shown in the screen to the left PASSWORD This screen allows the user to view and change the Service password FACTOR...

Страница 27: ...ay at previous version Update Process Prepare USB Create a new folder UPGRADE in USB Driver and copy the file to UPGRADE folder 1 Connect the USB Go to system menu with 2 button click 3 5 sec 2 Go to UPGRADE menu Press Enter 3 Check the software file which will be uploaded Press Enter 4 Press Enter to Start Upgrade 5 After uploading Press Enter then controller will restart 6 Software version check...

Страница 28: ...ion version and main module version A new application program can be updated to the controller via the Web UI Service Manager only Support Manual Display the Sequence Manual Dew point Calculator A calculator with three sliders to determine the dew point temperature or humidity Two of the three values are necessary to get the third Service Information Provides manufacturer support information as we...

Страница 29: ...nufacturer Test Run Service Manager Manufacturer Header Top Bar displays the Site Name Alarm codes and current account status Site Name Display site and tag information Can be adjusted at Setting Menu at menu bar Alarm The currently occurring alarm is displayed and if there is no alarm being generated No Alarm is displayed When clicked detailed information of the alarm occurring is displayed Accou...

Страница 30: ...ng Heating Fan only Defrosting Outside Air Condition DB RH Outdoor Unit information High Low pressure Comp Hz Fan Speed Multi V interlocking energy saving function status Double Energy Recovery system status Trend Saving Service Manager and Manufacturer accounts only Service manager can save the control variables and monitoring points Click Icon Set file Name Click Start Click Stop file save as CS...

Страница 31: ...ion 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 ...

Страница 32: ...Request to search Logged Trend Data under the conditions set to display in the chart Download Request to search Logged Trend Data under the set inquiry condition and save it as a CSV file Point Lists Point list selection for monitoring Max 10 Deselect All Deselect all control points selected for display on the chart Logged Trend Chart Display the trend data of the selected control points as a char...

Страница 33: ...iod for Live Trend and start stop Trend Scan Period Inquiry period is selectable 5 10 30 seconds 1 10 minutes Start Start Live Trend Stop Stop Live Trend Live Trend Chart The current values of the inquiry control points are displayed on the chart Sign in status is automatically extended while Live Trend Chart is displayed Popup Chart Live Trend can be showed in a separate popup window Trend Live T...

Страница 34: ...larm notification Alarm Button Alarm Codes Display Alarm Code Name Description with a pop up window Reset All Alarms Resets all user reset type alarms currently occurring Alarm History Lists Alarm Code In case of a device error the alarm code of the alarm notified from the main module Alarm Name Alarm Name Alarmed The time that the alarm is occurred Cleared The time that the alarm is cleared the r...

Страница 35: ... selected from the list of Not Coded SI pressure in kPa Imperial System UK CANADA and SI pressure in bar Main Module Version Display the version of the main module Application Version Display the version of the CAREL controller Application Application Upgrade Popup the Application Upgrade screen Only displayed to the service manager manufacturer The following popup window is displayed and you can ...

Страница 36: ...Support Manual Display the Sequence Manual 36 ...

Страница 37: ...midity Set the Relative Humidity value Dewpoint Set the Dewpoint value Support Dew point Calculator A calculator with three sliders to determine the dew point temperature or humidity Two of the three values are necessary to get the third Support Service Information Provides manufacturer support information and Manual resources 37 ...

Страница 38: ...e sensor range only for 0 10Vdc Type Sensor Note If Space Temperature sensor is the NTC type Do not need to set up Min Max Value Unoccupied Mode Cooling Operation Enable Disable the unoccupied Cooling Heating Operation Enable Disable the unoccupied Heating Dehumidifying Operation Enable Disable the unoccupied dehumidifying 2 Network Setting Modbus Slave Address Set the DOAS classification number u...

Страница 39: ...for separate cooling and heating entering condition Unoccupied Cooling Setpoint Set the cooling enable reference temperature in unoccupied mode The cooling operation is activated when the outside temperature is higher than the set temperature hysteresis value 2 Hysteresis Set temperature hysteresis for cooling operation in unoccupied mode Unoccupied Heating Setpoint Set the heating enable referenc...

Страница 40: ... occupied mode Setpoint Set the space relative humidity value Hysteresis Set the relative humidity hysteresis Control Mode Unoccupied Reference condition of the dehumidification operation in unoccupied mode Space RH Target space RH setpoint Space Dewpoint Target space dewpoint setpoint Space RH or Dewpoint Target space RH or dewpoint setpoint Space RH and Dewpoint Target space RH and dewpoint setp...

Страница 41: ...s are updated with the data of the CSV file Export When clicked save the current values of all override items in the CSV file Override Menu Override Set to operate override function Remain Time Display the remaining override time Manual Override Manual override tab Sensor Override Sensor override tab Override Set to operate override for item Value Set the override value SVC Manual Override The ser...

Страница 42: ...A condition and Unit setting Test Result When the test is in progress the test result of each items is displayed Waiting Item is not tested Testing Item is testing OK Item test result is ok Fail Item test result is failed Unit Overview Display the monitoring points of the unit Chart Display the monitoring points of the unit as a chart Saving Trend When click the download button on the right side o...

Страница 43: ...igerant outlet Temperature of Reheat Coil Analog Input 67 Read_NoWrite 30068 InputRegister 2 I068_RecoveryCoilInTemperature Refrigerant inlet Temperature of Recovery Coil Analog Input 68 Read_NoWrite 30069 InputRegister 2 I069_RecoveryCoilOutTemperature Refrigerant outlet Temperature of Recovery Coil Analog Input 69 Read_NoWrite 30070 InputRegister 2 I070_OADamperOpenRate Opening Position of Outsi...

Страница 44: ...2 Input Current CT Analog Input 9139 Read_NoWrite 39140 InputRegister 2 I9140_ODU2_Inv1InputVT ODU Slave 1 Inverter 1 Input Voltage Positive Integer Value 9140 Read_NoWrite 39141 InputRegister 2 I9141_ODU2_Inv2InputVT ODU Slave 1 Inverter 2 Input Voltage Positive Integer Value 9141 Read_NoWrite 39142 InputRegister 2 I9142_ODU2_Inv1PhaseCT ODU Slave 1 Inverter 1 Phase Current Analog Input 9142 Read...

Страница 45: ... that entity For the purposes of this definition control means i the power direct or indirect to cause the direction or management of such entity whether by contract or otherwise or ii ownership of fifty percent 50 or more of the outstanding shares or iii beneficial ownership of such entity You or Your shall mean an individual or Legal Entity exercising permissions granted by this License Source f...

Страница 46: ...g that You changed the files and c You must retain in the Source form of any Derivative Works that You distribute all copyright patent trademark and attribution notices from the Source form of the Work excluding those notices that do not pertain to any part of the Derivative Works and d If the Work includes a NOTICE text file as part of its distribution then any Derivative Works that You distribut...

Страница 47: ...the brackets The text should be enclosed in the appropriate comment syntax for the file format We also recommend that a file or class name and description of purpose be included on the same printed page as the copyright notice for easier identification within third party archives Copyright yyyy name of copyright owner Licensed under the Apache License Version 2 0 the License you may not use this f...

Страница 48: ...se harmful interference to radio communications Operation of the controller in this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Any changes or modifications in construction of this device which are not expressly approved by the party responsible for compliance could void the user s au...

Страница 49: ...DOAS_Sequence_01_21 49 ...

Страница 50: ...US Please call the installing contractor of your product as warranty service will be provided by them ...

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