LG BACnet Touch Installation & Owner's Manual
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LG BACnet Touch Installation & Owner's Manual

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INSTALLATION/OWNER'S MANUAL
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.
BACnet Touch (AC Smart BACnet)
PBACNA000
P/NO : MFL69023101

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Summary of Contents for LG BACnet Touch

  • Page 1 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. BACnet Touch (AC Smart BACnet) PBACNA000 P/NO : MFL69023101...
  • Page 3 The contents of this AC Smart BACnet Installation and User Manual are protected by international copyright laws, and the Computer Program Protection Act. The contents of the Installation/User Manaual and the programs mentioned herein may only be used under license from LG Electronics in strict adherence to the user agreement.
  • Page 4 EXPLANATORY NOTES Product Features Convenience • Auto-changeover Automatically switches the indoor unit into the correct mode to optimize space comfort. • Web access Allows distributed control from a remote location. • Visual and e-mail alarm notification Immediately indicates when a system is not operating at optimal conditions. • Visual Navigation Allows for accessing unit data by navigating uploaded floorplans.
  • Page 5 EXPLANATORY NOTES How to Use This Guide Please read from beginning to end this User Manual before using AC Smart BACnet. Store this guide so that is also easily accessible. Notations Used In This Guide • Control buttons displayed within the system are marked by boldface text in square brackets ([ ]). Example: [OK], [Save] • Option titles displayed in the program are marked by boldface text.
  • Page 6 MEMO...

  • Page 7: Table Of Contents

    – Turning on the screen – MultiV 20 Hp, 30 Hp, 40 Hp, error – Turning off the screen – Super Errors Rebooting – Central Controller Errors Login and logout Pre-Tech Support Checklist OPEN SOURCE SOFTWARE NOTICE LG’S AC Smart BACnet AGREEMENT...
  • Page 8 MEMO...

  • Page 9: Safety Precautions

    SAFETY PRECAUTIONS SAFETY PRECAUTIONS • This product must be installed by an installation professional from an LG authorized service center. • Any issues stemming from an installation by an unauthorized person is the responsibility of the user and will not be covered by warranty.
  • Page 10 SAFETY PRECAUTIONS y For electrical work, please have an electrician do the work based on the installation manual and specified circuit diagram. - Using an unsuitable cord, or having a non-professional work on the electricals may result in fire or electrical shock. y Do not place the product near a fire source.
  • Page 11 SAFETY PRECAUTIONS y Do not touch the product with wet hands. - It may cause a fire or electric shock. y Use standard components. - Use of an unauthorized product may result in fire, electric shock, explosion, injury, or a malfunc- tioning of the product.
  • Page 12 SAFETY PRECAUTIONS CAUTION Installation y Securely install the product in an area where the weight of the product can be supported. - The product may fall and be destroyed. y Do not use the product where there is oil, steam, or sulfuric gas. - It may effect the product's performance, or damage it.
  • Page 13 SAFETY PRECAUTIONS y Transformer selection: - Select an insulating product that complies with IEC61558-2-6 and NEC Class 2. - In addition, consider the combined power consumption of the modules, accessories, and field devices installed for the selection of an appropriate transformer. Main module current: 24 V~, 850 mA - Use the provided adaptor when using DC 12 V.
  • Page 14 SAFETY PRECAUTIONS Class A device NOTES 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 commercial environment.

  • Page 15: Preparation

    PREPARATION PREPARATION The following provides information on the AC Smart BACnet components, how to install and configure, and other required information necessary to use the product. AC Smart BACnet Overview AC Smart BACnet is a central controller installed in the management office of a building, or in the administration office of a school, to monitor and operate, via touch screen or Web access, the indoor units, ERV (ERV: Energy Recovery Ventilator, ERV DX: Direct Expansion Energy Recovery Ventilator), DI/DOs, DOKITs, AWHPs, AHUs and I/O Modules installed inside the building.

  • Page 16: Product Specifications

    PREPARATION NOTES The figures of the components and optionally purchased products shown may differ from the actual components and products. Product Specifications The product specifications for AC Smart BACnet are as follows. Item Specifications PCIMX5150D y ARM Cortex A8™ core y 800 MHz MEMORY 128 x 4 MB (DDR2 SDRAM)

  • Page 17: Features And Functions

    PREPARATION Features and Functions The features and functions of AC Smart BACnet are as follows. ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ <Front> <Back> ⑨ ⑩ ⑪ <Bottom> Number Item Description y 10.2 inch LCD control panel Touch Screen ①...

  • Page 18: Installation And Configuration

    The installation of AC Smart BACnet must be done by a professional. Be sure to contact a qualified engineer for the installation. If you have a question or request regarding the installation, contact an installation professional at an authorized LG service center or LG Electronics.
  • Page 19 PREPARATION Check the installation environment and configure the device address AC Smart BACnet can connect up to 128 devices (including indoor units, ERV, DI/DOs, DOKITs, AWHPs, AHUs) or 64 devices (including indoor units, ERV, DI/DOs, DOKITs, AWHPs ans AHUs) and 9 I/O Modules.
  • Page 20 Address: 41 NOTES The maximum allowed communication distance guaranteed by LG Electronics is 1 000 m. It means that the distance between AC Smart BACnet and the farthest device should not exceed 1 000 m. It is recommended that the communication cable use 0.75 mm square or more.
  • Page 21 PREPARATION AC Smart BACnet's RS485 connection An AC Smart BACnet can have up to 128 indoor units. If there are many outdoor units to be connected, connect them to a bus. If not, AC Smart BACnet may malfunction. <Good example: RS485 BUS form connection> <Bad example: RS485 STAR form connection>...
  • Page 22 PREPARATION Connect AC Smart BACnet You can install AC Smart BACnet and its cables as follows. Choose a space for AC Smart BACnet. • Prior to securing AC Smart BACnet, check if the space is suitable for installing AC Smart BACnet, an RS485 cable, power cord, and an Ethernet cable. Secure the back panel of AC Smart BACnet to the wall under which the RS485 cable is located.
  • Page 23 PREPARATION Connect the RS485 cable,which is located behind the AC Smart BACnet, to the RS485 terminal. (RS485) CAUTION The RS485 cable is polarity sensitive, be careful about keeping polarity when connecting the cables. To use the network functions (email transmission and web control) provided by AC Smart BACnet, connect an Ethernet cable to the LAN port on the back of AC Smart BACnet.
  • Page 24 PREPARATION Connect the power. • For global models - On the back of AC Smart BACnet, connect the power adapter to the power port. The adaptor is not provided with the AC Smart BACnet package sold in the U.S. NOTES You can hang the power cord on the power cord hanger located below the power port.
  • Page 25 PREPARATION • For US models - At the bottom of AC Smart BACnet, connect the power cord to the power port. NOTES In some countries, except for the U.S, you can connect the DC 12 V power to the AC Smart BACnet by using the provided adapter.
  • Page 26 PREPARATION After attaching the hook on the top of the main body to the top of the rear panel installed on the wall, please push the top of the main body unit forward for firm attachment. CAUTION Secure two points on the bottom of the unit to prevent from falling. NOTES Product removal After removing 2 screws from the bottom of the body, slightly pull the body using the flatblade...

  • Page 27: Configure Remote Shutdown Feature

    PREPARATION Configure Remote Shutdown Feature Based on contact closure of Digital Input 1 the AC Smart BACnet can stop all connected devices (indoor units, ERV, DOKITs, AWHPs, and AHUs). A non-voltage contact must be connected to terminals DI-1 to initiate Remote Shutdown as shown below.

  • Page 28: Information Input Method

    PREPARATION Information Input Method Touch the AC Smart BACnet information input box and a touch keyboard at the bottom of the panel will appear. Use the touch keyboard to input information.

  • Page 29: Starting

    STARTING STARTING This section explains how to connect to the system and register devices to setup the environment (prior to using AC Smart BACnet). Turning on/off the screen The following explains how to turn on or off the AC Smart BACnet screen. Turning on the screen You can turn on the screen as follows.

  • Page 30: Rebooting

    STARTING Rebooting You can reboot the device as follows. Press the power button on the bottom of the unit for 10 or more seconds. • The device reboots. Login and logout The following explains how to log in and out of AC Smart BACnet. AC Smart BACnet can control and monitor equipment by touch screen or Web access.

  • Page 31: Lg's Ac Smart Bacnet Agreement

    BMS Engineering Creating of the Points. This is NOT to be done by LG since it is directly related to the BMS side. The BMS engineer is to carry out the engineering of the Point, however LG is responsible for providing the method of how the Points are calculated.
  • Page 32 LG’S AC Smart BACnet AGREEMENT Notes After the LG's AC Smart BACnet agreement part, please consult with the experts of BMS. BACnet PQNFB17C AC Smart BACnet Diagnosis 1. Creating of indoor and vent points. 2. Test of all units and operations.

  • Page 33: Functional Specifications Ac Smart Bacnet

    BACnet-ANSI/ASHRAE135 protocol), status information of A/C/vent that are connected to the AC Smart BACnet ’s internal LG-NET will be sent in BACnet service form, and BACnet client provides a function that transmits control command to the A/C/vent system.
  • Page 34 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Objects - AC Smart BACnet /IP BACnet Point List : Indoor Unit One indoor unit has a Point List as follows. Some of IDU Points may not be supported depending on the product.
  • Page 35 FUNCTIONAL SPECIFICATIONS AC Smart BACnet...
  • Page 36 FUNCTIONAL SPECIFICATIONS AC Smart BACnet...
  • Page 37 • Point NO. 16 1. This object’s error code descriptions should be referred to the corresponding table at the “Reference LG original Error Code”. • Point NO. 35 ~ 49 1. This objects are effective, in case 2Set Auto Mode of environment setting is enabled.
  • Page 38 FUNCTIONAL SPECIFICATIONS AC Smart BACnet BACnet Point List : Ventilation One Ventilation unit has a Point List as follows.
  • Page 39 FUNCTIONAL SPECIFICATIONS AC Smart BACnet...
  • Page 40 • Point NO. 16 1. This object’s error code descriptions should be referred to the corresponding table at the “Reference LG original Error Code”. • Point NO. 17 1. Th is object is for vent only, and will not apply if the property has not been set in the past.
  • Page 41 FUNCTIONAL SPECIFICATIONS AC Smart BACnet BACnet Point List : AHU One AHU unit has a Point List as follows.
  • Page 42 FUNCTIONAL SPECIFICATIONS AC Smart BACnet...
  • Page 43 FUNCTIONAL SPECIFICATIONS AC Smart BACnet...
  • Page 44 FUNCTIONAL SPECIFICATIONS AC Smart BACnet...
  • Page 45 1. This object is for indoor units only, and reports the room temperature data measured by the indoor units. • Point NO. 16 1. This object’s error code descriptions should be referred to the corresponding table at the “Reference LG original Error Code”.
  • Page 46 FUNCTIONAL SPECIFICATIONS AC Smart BACnet BACnet Point List : ODU One ODU unit has a Point List as follows. AC Smart BACnet ODU Point List may not be supported depending on the product. If an ODU system has two or more outdoor units then the point list of only the master unit is supported - not any of the slave units.
  • Page 47 FUNCTIONAL SPECIFICATIONS AC Smart BACnet BACnet Point List : AWHP One AWHP unit has a Point List as follows.
  • Page 48 FUNCTIONAL SPECIFICATIONS AC Smart BACnet...
  • Page 49 FUNCTIONAL SPECIFICATIONS AC Smart BACnet BACnet Point List : GENERAL AC Smart BACnet has a GENERAL Point List as follows. Some of GENERAL Points may not be supported depending on the product. The product should be rebooted when temperature unit setting is modified.
  • Page 50 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Local Definition of Object ID - The instance number is a pair, this consists of the indoor unit No. and item. Product Type(Indoor:0, Vent:1, AHU:2, ODU:3, AWHP:4, GENERAL:5) **Device : Group of Product units(16EA) Example of Point Table The point table below is passed to BMS, and BMS registers the object.
  • Page 51 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Object Device Product Address Point Instance No. Name Type 0×02102(8450) ON/OFF : status 0×02F01(12033) ON/OFF : setting 0×02F02(12034) ON/OFF : status Case Vent Object Device Product Address Point Instance No. Name Type 0×10001(65537) ON/OFF : setting 0×10002(65538) ON/OFF : status 0×10101(65793)
  • Page 52 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Object Device Product Address Point Instance No. Name Type 20102 (131330) ON/OFF : status 20F01 (134913) ON/OFF : setting 20F02 (134914) ON/OFF : status...
  • Page 53 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Objects (Modbus-TCP) Supported Function Code Monitoring and controlling items of air conditioners supported are assigned with general function codes specified by Modbus-TCP. Function Name Code Description Run/Stop(status), Lock(status), Swing(status), Alarm, Read Single Coil Filter Sign(status), Mode Lock(status), Wind Flow Lock(status) Operation Mode(status), Fan Speed(status), Room Temperature, Error Code, Set Room...
  • Page 54 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Modbus Point List : Indoor Unit Function Code : 0x01 and 0x05...
  • Page 55 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Function Code : 0x03 and 0x06...
  • Page 56 • MalfunctionCode_XXX 1. This object’s error code descriptions should be referred to the corresponding table at the “Reference LG original Error Code”. • ModeCommand_XXX 1. The Present_Value property will be set to “1: Cool” as the default value if property has never been set in the past.
  • Page 57 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Modbus Point List : Ventilation Function Code : 0x01 and 0x05...
  • Page 58 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Function Code : 0x03 and 0x06...
  • Page 59 1. This object is for vent only, and will not apply if the property has not been in the past. • MalfunctionCode_XXX 1. This object’s error code descriptions should be referred to the corresponding table at the “Reference LG original Error Code”.
  • Page 60 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Modbus Point List : AHU Function Code : 0x01 and 0x05...
  • Page 61 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Function Code : 0x03...
  • Page 62 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Function Code : 0x03 / 0x06...
  • Page 63 • MalfunctionCode_XXX 1. This object’s error code descriptions should be referred to the corresponding table at the “Reference LG original Error Code”. • ModeCommand_XXX 1. The Present_Value property will be set to “1: Cool” as the default value if property has never been set in the past.
  • Page 64 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Local Definition of Object ID - The instance number is a pair, this consists of the indoor unit No. and item. Example of Point Table The point table below is passed to BMS, and BMS registers the object. Address Object Type Instance Number...
  • Page 65 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Case Vent Function Code Device No. Product No. Point Instance No. Name 0x04000 ON/OFF status 0x04000 ON/OFF Setting 0x04010 ON/OFF status 0x04010 ON/OFF Setting 0x04100 ON/OFF status 0x04100 ON/OFF Setting 0x44000 Mode status 0x44000 Mode Setting 0x44010 Mode status 0x44010...
  • Page 66 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Initialization at the Start Up The system is designed to automatically recognize the connected air conditioners. Therefore, a period of approximately one minute will be required to recognize all the air conditioners after the system is turn on. During this period, the following error PDU may be returned when an object corresponding to an air conditioner is accessed.
  • Page 67 FUNCTIONAL SPECIFICATIONS AC Smart BACnet Report Function Event Notification 1) Registration of Event Notification Destination It is possible to use the AddListElement service to register notification destination information on the Recipient List property of the Notification Class object. 2) Deletion of Event Notification Destination The RemoveListElement service can be used to delete notification destination information from the Notification Class object.

  • Page 68: Notes

    NOTES NOTES BIBBs AC Smart BACnet Interoperability Building Blocks Supported(BIBBs) Data Sharing BIBBS (□:Not supported,■: Support) AC Smart BACnet BIBB Type Supported Initiate Execute Service DS-RP-A Data Sharing-ReadProperty-A □ ReadProperty × DS-RP-B Data Sharing-ReadProperty-B ■ ReadProperty × Data Sharing- □ ReadPropertyMultiple × RPM-A ReadPropertyMultiple-A Data Sharing-...
  • Page 69 NOTES AC Smart BACnet BIBB Type Supported Initiate Execute Service SubscribeCOV × Confirmed × Data Sharing-COV-B ■ COVNotification COV-B Unconfirmed × COVNotification SubscribeCOV × Confirmed × Data Sharing-COVP-A □ COVNotification COVP-A Unconfirmed × COVNotification SubscribeCOV × Confirmed × Data Sharing-COVP-B □...
  • Page 70 NOTES Alarm and Event Management BIBBS (□:Not supported,■: Support) AC Smart BACnet BIBB Type Supported Initiate Execute Service Confirmed × EventNotification AE-N-A Alarm and Event-Notification-A □ Unconfirmed × EventNotification Confirmed × EventNotification Alarm and Event-Notification AE-N-I-B ■ Internal-B Unconfirmed × EventNotification Confirmed ×...
  • Page 71 NOTES Scheduling BIBBS (□:Not supported,■: Support) AC Smart BACnet BIBB Type Supported Initiate Execute Service Scheduling-A SCHED-A □ (must support DS-RP-A and DS-WP-A) Scheduling-Internal-B (shall support DS-RP-B and SCHED- DS-WP-B) □ (shall also support ether DM- TS-B or DS-UTC-B) Scheduling-External-B SCHED- □ (shall support SCHED-I-B and DS-WP-A) Trending BIBBS...
  • Page 72 NOTES Device Management BIBBS (□:Not supported,■: Support) AC Smart BACnet BIBB Type Supported Initiate Execute Service Who-Is × Device Management - ■ DDB-A Dynamic Device, Binding-A I-Am × Who-Is × Device Management - ■ DDB-B Dynamic Device, Binding-B I-Am × Who-Has × Device Management - □...
  • Page 73 NOTES AC Smart BACnet BIBB Type Supported Initiate Execute Service Device Management - UTCTime □ × UTC-B UTCTimeSynchronization-B Synchronization Device Management - □ ReinitializeDevice × RD-A ReinitializeDevice-A Device Management - □ ReinitializeDevice × RD-B ReinitializeDevice-B Device Management BIBBS (□:Not supported,■: Support) AC Smart BACnet BIBB Type Supported Initiate Execute...
  • Page 74 NOTES Network Management BIBBS (□:Not supported,■: Support) AC Smart BACnet BIBB Type Supported Initiate Execute Service Establish- Connection-To- × Network Network Management - □ CE-A Connection Establishment-A Disconnect- Connection-To- × Network Establish- Connection-To- × Network Network Management - □ CE-B Connection Establishment-B Disconnect- Connection-To- ×...

  • Page 75: Multi - State Input Object Type

    NOTES Multi - state Input Object Type Property Identifier Property Datatype AC Smart BACnet Object_Identifier BACnetObjectIdentifier Object_Name CharacterString Object_Type BACnetObjectType Present_Value Unsigned Description CharacterString Device_Type CharacterString Status_Flags BACnetStatusFlags Event_State BACnetEventState Reliability BACnetReliability Out_Of_Service Boolean Number_Of_States Unsigned BACnetARRAY[N] of State_Text CharacterString Time_Delay Unsigned Notification_Class...
  • Page 76 NOTES Property Identifier Property Datatype AC Smart BACnet Description CharacterString Device_Type CharacterString Status_Flags BACnetStatusFlags Event_State BACnetEventState Reliability BACnetReliability Out_Of_Service Boolean Number_Of_States Unsigned BACnetARRAY[N] of State_Text CharacterString Priority_Array BACnetPriorityArray Relinquish_Default Unsigned Time_Delay Unsigned Notification_Class Unsigned Feedback_Value Unsigned Event_Enable BACnetEventTransitionBits Acked_Transitions BACnetEventTransitionBits Notify_Type BACnetNotifyType BACnetARRAY[3] of...

  • Page 77: Ac Smart Bacnet Error Response Table

    Error PDU Error PDU Error Class Error Code Reading of the object list during the initialization of Device(0) Configuration_In_Progress(2) the LG-NET Request to access to an object not installed. Object(1) Unknown_Object(31) Request to access to a property not installed. Property(2) Unknown_Property(32) Request to write to a prohibited area.
  • Page 78 NOTES Abort PDU Reject PDU Reject Reason Unable to process due to too many requests beyond the Buffer_Overflow(1) capacity. The processing of segments was aborted because an Invalid_APDU_In_This_State(2) expected APDU was received. The response side does not support the segment. Segmentation_Not_Supported(4)

  • Page 79: Troubleshoot

    Troubleshoot Troubleshoot Control Codes AC Smart BACnet may display the following control codes during usage Control Code Description Displayed when the device status has changed due to the control Displayed when the system settings have changed Displayed when there is an error Error Codes The following error codes may appear while using AC Smart BACnet.
  • Page 80 Troubleshoot Error Indoor Device ERV or ERV DX AWHP(Hydro kit) Code Hot water Operate smoke thermometer control through malfunction smoke detection. EEPROM ERROR EEPROM ERROR EEPROM ERROR (indoor unit) (indoor unit) (indoor unit) Indoor fan LOCK Indoor fan Lock (operation error) (operation error) HHU/boiler communication...

  • Page 81: Outdoor Unit Errors

    Troubleshoot Outdoor Unit Errors Error Code Description DC peak Max ct (CT 2): Maximum current error DC link voltage (low) High voltage/heat plate SW Under-voltage/over-voltage DC comp position error PSC fault error DC link voltage (high) Comp over-current Surge in static speed #2 compressor discharge temperature CT err (low current) Inverter discharge temperature error (high) Surge in static speed #1 compressor discharge temperature...
  • Page 82 Troubleshoot Error Code Description Communication error (central to main controller) Communication error (main to central controller) Communication error (main board to inverter board) Incorrect connection of tax product (tax-exempt indoor unit to taxed outdoor unit) Mixed installation of slave outdoor unit PCB EEPROM error (MULTI V: inverter PCB EEPROM error) Inverter discharge temperature error (high) Heatsink error (high)

  • Page 83: Multiv 20 Hp, 30 Hp, 40 Hp, Error

    Troubleshoot MultiV 20 Hp, 30 Hp, 40 Hp, error Error Description Code SLAVE1 static speed compressor 1 discharge temperature surge error SLAVE1 static speed compressor 2 discharge temperature surge error SLAVE2 static speed compressor 1 discharge temperature surge error SLAVE2 static speed compressor 2 discharge temperature surge error Communication error with outdoor unit (slave to master) Fan board communication error (fan to outdoor unit) Fan board (IPM fault)
  • Page 84 Troubleshoot Error Description Code SLAVE2 outdoor unit sensor (static speed compressor 1 discharge temperature error) SLAVE2 outdoor unit sensor (static speed compressor 2 discharge temperature error) SLAVE2 outdoor unit sensor (heat exchanger temperature sensor A error) SLAVE2 outdoor unit sensor (heat exchanger temperature sensor B error) SLAVE2 outdoor unit (fluid pipe temperature sensor error) SLAVE2 outdoor unit (overcooling inlet temperature sensor error) SLAVE2 outdoor unit (overcooling outlet temperature sensor error)

  • Page 85: Super Errors

    Troubleshoot Super Errors Error Description Code Fan board heat plate temperature sensor error Fluid pipe sensor error (fluid pipe sensor of HR Unit1 open/short) Overcooling inlet sensor error (overcooling inlet sensor of HR Unit1 open/short) Overcooling outlet sensor error (overcooling outlet sensor of HR unit1 open/short) Overcooling outlet sensor error (overcooling outlet sensor of HR unit1 open/short) Fluid pipe sensor error (fluid pipe sensor of HR Unit2 open/short) Overcooling inlet sensor error (overcooling inlet sensor of HR Unit2 open/short)

  • Page 86: Central Controller Errors

    Troubleshoot Error Description Code Fluid pipe sensor error (fluid pipe sensor of HR Unit9 open/short) Overcooling inlet sensor error (overcooling inlet sensor of HR Unit9 open/short) Overcooling outlet sensor error (overcooling outlet sensor of HR unit9 open/short) Communication error (no outdoor unit signal for 3 min from HR unit9) Central Controller Errors Error Description...

  • Page 87: Pre-Tech Support Checklist

    In addition to the source code, all referred license terms, warranty disclaimers and copyright notices are available for download. LG Electronics will also provide open source code to you on CD-ROM for a charge covering the cost of performing such distribution (such as the cost of media, shipping and handling) upon email request to opensource@lge.com.
  • Page 88 Ver 1.0.1...

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