OWNER’S MANUAL AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference. TYPE : Simple Central Controller MODEL : PQCSB101S0 P/NO : 3828A20467B www.lg.com...
TABLE OF CONTENTS Safety precautions ...3 Before use...5 System drawing ...5 Name of each part ...6 Operation tips...7 Individual operation...7 Total control for each group ...7 Total On/Off operation...7 Mode change ...8 Setting individual lock ...9 Setting total lock ...9 Connected indoor unit search function ...10 Self diagnosis for indoor unit ...11 Set group inquiry ...11...
• The installation requires expert skills, and it should be installed by the service center or other shops specialized in the installation and recognized by our company. • For all the problems arising after installation by someone who has no relevant qualifications, LG will not provide free service.
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Safety Precautions In-use Do not modify or lengthen the power cable at your discretion. It may cause fire or an electric shock. Do not place something heavy on the power cable. It may cause fire or an electric shock. Make sure children or senor citizens use the product under proper observation in order to prevent safety accident.
Before Use System Drawing Total 128 indoor units can be controlled by central controllers using function controller along with. Function controller is connected as shown below. PI 485 PQRCHCS0 Defrost Preheat Out door Room Temp Total on Central Run Cooling Heating Auto Dry Fan MODE SEARCH SPEED...
Before Use Name of Each Part Central controller Annexed parts Central controller anchoring screws (4EA) Addressing remote control 6 Simple Central Controller 1. On/Off status display LED (total 16EA) Displays the status of the indoor unit if individual On/Off button is pressed. •...
Operation Tips Control of On/Off operation Individual Operation 1. Press the individual On/Off button, then the equivalent unit starts and LED is on. 2. If pressing the individual On/Off button, equivalent unit stops and LED is off. Total Control for Each Group •...
Operation Tips • Mode change function doesn't work when the function controller is connected with the system. Mode Change Operating mode change for individual indoor unit While changing the operating mode of the indoor unit, press the individual Operate/Stop button for 2 seconds and the operating mode of the applicable indoor unit will change from cooling to heating mode or from heating to cooling mode.
• Control is available only by central controller & control by individual remote controller is impossible Setting Individual Lock Setting individual lock Press Total On and individual On/Off button at the same time. • In this case, equivalent unit is controlled only by Central controller.
Operation Tips Connected Indoor Unit Search Function Automatic search When power is connected to the Central controller set as master, LEDs from no. 1 to 16 will light up in sequence and automatically runs a search for all the connected indoor units for 3 minutes.
Operation Tips Self Diagnosis for Indoor unit Normal The On/Off status indicator LED of individual indoor unit is On/Off (depends upon unit state) Error condition If there is an error in the indoor unit, the On/Off status indicator LED of the that indoor unit turns red and when it recovers normal condition, the LED will turn green or orange depending on the operating mode.
Operation Tips Function Controller Connection Individual indoor unit control 1. Press the individual On/Off button of the central controller and select the indoor unit to be controlled. Now the applicable indoor unit will start or stop. 2. Function controller indicates the operating status of the selected indoor unit and makes it to change the condition to adjust the wind/set temperature of the operating mode.
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Group selection from Master Centrol Controller 1. Press the On/Off button for more than 3 seconds on the master Central controller equivalent to the group no. of slave controller whose indoor units you want to turn On. ex) Press the no. 2 button on master Central controller for more than 3 seconds. Now all the indoor units of slave/group 1 will be turned on.