Visit us at : http://www.lgservice.com LG LG Dry Contact(Only AC 24V) INSTALLATION MANUAL Models: PQDSA1 PQDSB1 CLASS II POWER IMPORTANT • 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.
Dry Contact Unit Installation Manual TABLE OF CONTENTS ■ Safety Precautions .........................................................3~4 ■ Overview ............................................................................5 ■ Part Description .................................................................7 ■ Installation Guide ...............................................................8 ■ Installation Steps for Single Product..........................................................
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury. CAUTION This symbol indicates the possibility of injury or damage. ■ Meanings of symbols used in this manual are as shown below.
Safety Precautions Use the correctly rated breaker or fuse. Do not install, remove, or reinstall the unit by yourself (customer). For installation, always contact the dealer or an Authorized Service Center. • There is risk of fire or electric shock. • There is risk of fire, electric shock, explosion, or injury. • There is risk of fire, electric shock, explosion, or injury. ■ Operation When the product is soaked (flooded or submerged), contact an Authorized Service Center.
Overview Overview LG Dry Contact is a solution for automatic control of air conditioning system at the owner’s behest. In simple words, it’s a switch which can be used to turn the unit On/Off after getting the signal from external sources like key-in lock, door or window switch etc specially used in Hotel rooms. It’s a small PCB that either can be fit inside the control box of Indoor unit or can be outside the unit in a plastic case if there is no sufficient space inside the Indoor unit.
Part Description Power Connector Indoor PCB Connector Dry Contact Controller Connector 6 Dry Contact
Part Description Part Description PQDSA1 (Only PCB) 1 2 3 4 5 6 PQDSB1 (PCB + Case) DRY CONTACT UNIT LG [Top case] [Bottom case] [Side] [Side] [ PCB ] [Side] 1 CN-POWER : AC 24V Connector 2 CN-CC : Indoor PCB Connector 3 CN_DRY (L) : DRY CONTROLLER Connector 4 CN_DRY ( SIG ) : DRY CONTROLLER Connector 5 CN_DRY (ERROR CHECK) : ERROR Check Display Connector 6 CN_DRY( OPER STATE): Operation Display Connector Installation Manual 7
Installation Guide Installation Guide Installation Steps for Single Product Connect CN-CC with Indoor PCB by the cable(provided) - Connection of Dry contact only DRY CONTACT SUB PCB Indoor PCB CN-CC 4 3 2 1 CN-CC 2 1 2 1 4 3 2 1 AC 24V - Connection of Dry contact & LG Central Controller in case of single constant models.
Installation Guide Installation Steps for Multi Product Connect CN_DRY with Control Unit . (Fix SUB PCB into the proper location.
Administrator Guide Administrator Guide * Function It gives selection whether to turn ON the unit directly or not from the external source. The selection can be made by pressing CANCEL button of the wireless remote controller 3 times within 3 minutes of resetting the unit with facing it towards the unit. (This function availability depends on indoor unit model) ON OFF SET CANCEL CANCEL CANCEL Button ON OFF SET AUTO CLEAN PLASMA 1. To turn ON the unit directly from the external source 2.
P/No.: 3828A20494R Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.
