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INSTALLATION 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.
Modbus Gateway for Indoor Unit
Original instruction
LG Electronics Inc.
Manufacturer: LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro,
Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA
MFL67708320
Rev.01_081820
Copyright © 2015 - 2020 LG Electronics Inc. All Rights Reserved.
www.lghvac.com
www.lg.com
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Summary of Contents for LG PDRYCB500
- Page 1 Please retain this installation manual for future reference after reading it thoroughly. Modbus Gateway for Indoor Unit Original instruction LG Electronics Inc. Manufacturer: LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA www.lghvac.com www.lg.com MFL67708320 Rev.01_081820 Copyright © 2015 - 2020 LG Electronics Inc. All Rights Reserved.
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Page 2: Table Of Contents
TABLE OF CONTENTS Important Safety Instructions ..........3~4 Specification ................5 Name of each part ..............6 Installation Method ............. 7~9 Setting method ..............10 1. Connecting Drycontact with Indoor unit PCBA and Modbus Controller ............10 2. Setting Address .................10 2 Modbus Gateway For Indoor Unit... -
Page 3: Important Safety Instructions
Important Safety Instructions Important Safety Instructions READ ALL INSTRUCTIONS BEFORE USING • Installation work must be performed in THE APPLIANCE. accordance with the national wiring standards by authorized personnel only. Always comply with the following precautions to avoid dangerous situations and ensure peak •... - Page 4 CAUTION Installation • The Limited Warranty is void and of no effect, and LG will have no liability hereunder to any Customer or third party, to the extent any of the following occur: acts, omissions, and conduct of any and all third parties including, but not limited...
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Page 5: Specification
Specification Specification 1) Modbus configuration - Network : 2 wire RS485 - Mode : Modbus RTU slave - Baud : 9 600 - Parity : None - Stop bits : 1 2) Data registers Function code Register Address Name Range Notes 0: Stop 01(read)/05(write) -
Page 6: Name Of Each Part
Name of each part Name of each part Front Case Rear Case ISO View Side Side Cable(1 EA) Installation Manual Connector (1 EA) (For Connecting with indoor unit) (For expanding address range) * Others : Screw 4 EA(For installation) Modbus Gateway For Indoor Unit 1. -
Page 7: Installation Method
Installation Method Installation Method Installation inside of the indoor unit 1) Loosen and remove two screws that secure the product. 2) Loosen two screws that secure the PCB to separate rear of the case from the PCB. 3) Connect the connection wires properly according to the connection method. (Refer to the instruction and set-up description) 4) Set the switch according to the setting method. - Page 8 Installation Method Installation 1) Loosen and remove two screws that secure the product. 2) Position the rear case to the direction towards to the connector for convenient cable arrangement. 3) Secure the rear case on the installation place using the supplied fixing screws.
- Page 9 Installation Method 5) Connect the connection wires properly according to the connection method. (Refer to the instruction and set-up description) 6) Set the switch according to the setting method. (Refer to the instruction and set-up description) 7) Tighten the fixing screws on the top and bottom of the case. 1.
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Page 10: Setting Method
Setting method Setting method After change any Dry contact setting, then you must press RESET switch to reflect the setting. 1. Connecting Drycontact with Indoor unit PCBA and Modbus Controller Indoor unit PCBA Modbus Controller CN_CC 2. Setting Address Address 1/9 Address 2/10 Address 3/11 Address 4/12...