Visit us at : http://www.lgservice.com Owner's Manual ESPAÑOL Models: PRCKD20E PRCKD40E ITALIANO LG AHU CONTROL KIT ENGLISH LG FRANÇAIS PORTUGUESE 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.
AHU CONTROL KIT Owner's Manual TABLE OF CONTENTS ■ Safety Precautions...............................................................3 ■ Necessary sensor by operating mode ................................6 ■ Part Description ...................................................................7 ■ Basic operation of wired remote controller..........................8 ■ Main function of wired remote controller .............................9 ■ Supplementary function of wired remote controller ..........
Safety Precautions Safety Precautions 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. Be sure not to do. Be sure to follow the instruction. WARNING ■ Installation System air conditioner can only be installed by specialized service provider with air condition installation certifications.
Safety Precautions When opening the box or installing the product, be careful of any sharp objects. • It can cause an injury. The electric construction must be performed by an electrician for electric installation based on the installation manual and designated circuit diagram. Use the fuse of rated capacity. For the product installation, request for service to the service center or the installation service provider. • It can cause a fire or an electric shock.
Safety Precautions Do not put containers with water on top of the product. • If the water spills over, it can cause a fire or an electric shock. ENGLISH CAUTION ■ Operation When installing the product, make sure to level the product. • It can cause vibration or leakage. Do not install the product at a location where flammable gas is leaking. • It can cause a fire or a problem to the product. Do not carry the product by yourself. • You can get injured by doing so.
Necessary sensor by operating mode Necessary sensor by operating mode Operating mode Necessary sensor Function Air conditioning SA temperature sensor RA temperature sensor - This runs indoor air conditioning. - Initial external air inlet setting is 30% of the air supply during the air conditioning and this can be changed by the user. But, when the damper actuator is installed on AHU, the setting can be changed. Heating SA temperature sensor RA temperature sensor - This runs the indoor heating.
Part Description Part Description Name and Function of Remote Controller 2 3 9 5 10 11 12 6 13 7 14 8 15 4 16 Please attach the inform label inside of the door. Please choose proper language defend on your country. • 3/4/12/13 does not work. • 6 Additional operation button depends on the application of the sensor. Owner's Manual 7 ENGLISH 1 1 OPERATION INDICATION SCREEN 2 SET TEMPERATURE Button 3 WIRELESS REMOTE CONTROLLER RECEIVER • Some products don't receive the wireless signals.
Basic operation of wired remote controller Basic operation of wired remote controller the Run/Stop button on the control 1 Press part of the remote controller to start the operation. the Operation Selection button to 2 Press set the operating mode (Heating/Cooling etc.). the Temperature Control button to 3 Press set the desired temperature below the indoor temperature.
Main function of wired remote controller Main function of wired remote controller repeated. time you press the Operation Selection 2 Every button, it will change in the order of Air Conditioner → Dehumidifier → Heater → Power Save → Fan. There are operating modes that cannot be set depending on the applied sensor.
Main function of wired remote controller time you press the Temperature 3 Every Control button and the Up/Down button, the desired temperature will change. Air Conditioner/Power Save: 18~30°C / Heater: 16~30°C Dehumidifier/Fan: Desired temperature cannot be changed you press the Indoor Temperature 4 When button, the Return Temperature of AHU will be displayed for about 5 seconds.
Supplementary function of wired remote controller Supplementary function of wired remote controller Humidifier B the Humidifier icon 2 When flashes in Display ‘B’, press the Set/Cancel button to start the humidifier. you press the OK/CLEAR 3 When button one more time, the humidifier will stop. * Humidifier can only be set during heating operation. * Humidifier operation can only be used when the humidifier is installed. * The humidifier operation is controlled by the desired temperature set.
Supplementary function of wired remote controller Desired humidity control the Function Setting 1 Press button. the Function Code of 2 Set Display ‘C’ to 01. C the Up/Down button to set 3 Press the target humidity. the OK/CLEAR button to 4 Press decide the desired humidity. * Desired humidity can be controlled in the range of 40~60% by 5% increment. * Default humidity is set to 50%.
Supplementary function of wired remote controller Auto ventilaton A the Auto icon flashes in 2 When Display ‘A’, press the OK/CLEAR button to start the Auto Ventilator. you press the OK/CLEAR 3 When button one more time, the Auto Ventilator will be canceled and return to the previous operating condition. * Auto Ventilator function can only be set during the Air Conditioning/Heating operation. Owner's Manual 13 ENGLISH the Additional Operation 1 Press button.
Supplementary function of wired remote controller Desired CO 2 level control the Additional Operation 1 Press button. C the Function Code of 2 Set Display ‘C’ to 02. the Up/Down button to set 3 Press the target CO level. 2 the OK/CLEAR button to 4 Press set the target CO level. 2 * Desired CO2 level can be controlled in the range of 500~1500ppm by 100ppm increment. * Default humidity is set to 1000ppm.
Reservation function of wired remote controller Reservation function of wired remote controller Changing Current Time time mode. Ex) Changing Current Time as 'Monday / AM 10:20'. 2 Press day. key to adjust the current key to move to AM/ PM setting 3 Press mode (the 'AM/ PM segment will flash). AM/ PM value by 4 Setting pressing button. button to move to 'Hour' 5 Press setting mode. (the 'Hour' segment will flash) Hour value by pressing 6 Setting button.
Reservation function of wired remote controller button to move to 'Minute' 7 Press setting mode. (the 'Minute' segment will flash) Minute value by pressing 8 Setting button. 9 Press 10 16 AHU CONTROL KIT button to finish. In the process, press button to release and exit from setting mode.
Reservation function of wired remote controller Programming : Setting Simple Reservation In case of there is not any reservation setup on system, it is possible to make a SIMPLE reservation on indoor unit. (the segment flashing) Ex) Setting Simple Reservation time as '3'. button to adjust 2 Press reservation time. 3 Press button to finish setting. the reservation time after finish 4 Adjusting reservation setting will release the previous one.
Reservation function of wired remote controller Programming : Setting ON Reservation This function is able to turn air conditioner ON after a setting time. 1 Press button. Ex) Setting ON Reservation Time as 'AM 10:20'. pressing button to 2 Repeat enter the ON reservation setting mode. ( segment flashing) 3 Press setting. button to adjust AM/ PM button to Hour setting 4 Press mode. When the Hour icon flash, please setting time. The setting range is within 1~12.
Reservation function of wired remote controller Programming : Setting OFF Reservation This function is able to turn air conditioner OFF after a setting time. button. Ex) Setting OFF Reservation Time as 'AM 10:20'. pressing button to 2 Repeat enter the OFF reservation setting mode. ( segment flashing) 3 Press setting. button to adjust AM/ PM button to shift to Hour 4 Press setting mode. When the Hour icon flash, please setting time. The setting range is within 1~12.
Reservation function of wired remote controller Programming : Weekly Reservation The weekly reservation is active after setting current time programming button to enter 1 Press the Programming mode. Repeat pressing button to select [Weekly reservation]. (The segment will be flashed) Ex) Setting one action as below. - Day : TUE - ON Time : 11:30 AM - OFF Time : 12:30 PM left, right button to adjust the 2 Press current day. up, down button to adjust the 3 Press action number.
Reservation function of wired remote controller up, down button to adjust the 7 Press Minute on Start Time section. ENGLISH right button to move to 'Hour' 8 Press Part on OFF Time section. (The 'Hour' segment will be flashed) Off Time Section refer the process from No.5 9 Please to No.7 for setting OFF Time. It is same method. you finish the setting, press 10 Ifsetting/cancel button to complete programming. The under bar segment will be created, when it finished. refer the process from 11 Please No.
Reservation function of wired remote controller Programming : Holiday Reservation This function is to automatically stop the machine working on some days. button to enter the 1 Press reservation setting mode. pressing button to 2 Repeat enter the holiday reservation setting mode. ( segment flashing) button to move to 3 Press holiday position. button to set or 4 Press release a selected day as holiday or not.
Setting function of wired remote controller installation Setting function of wired remote controller installation How to start installation setting mode be displayed on Display ‘C’ to enter the installation mode. C you now press the Function 2 When Setting button, the function code will change. the Up/Down button to change the 3 Press setting. the Left/Right button to navigate 4 Press through the items. the Set/Cancel button to complete 5 Press the setting.
Setting function of wired remote controller installation Setting function by code Code 10: Test run (AHU has no function) Code 11: Central control address setting Code 12: Damper opening setting Code 13: Remote controller Master/Slave setting Display C: Installation setting display Function Code Setting1 24 AHU CONTROL KIT Setting2
Setting function of wired remote controller installation Central control address setting the Function Setting button 2 Press repeatedly to reach function code of ‘11’. Flashes the Right button to 3 Press move to ‘Setting of 1’. Flashes the Up/Down button 4 Press to set the central control address. Central control address the Set/Cancel button 5 Press to complete the central control address setting. * This is the function to set the central control address of AHU.
Setting function of wired remote controller installation Damper opening setting 1Enter the Installation Setting mode. C press the Function Setting 2 Repeatedly button to reach function code of ‘12’. Flashes the Right button 3 Press to move to ‘Setting of 1’. Flashes the Up/Down button to set the value. 4 Press ‘Setting of 1’ for each mode is as follows.
Setting function of wired remote controller installation the Right button to move to 5 Press ‘Setting of 2’ by each mode. C the Up/Down button to select the 6 Press damper opening. The damper opening that can be set is in the range of 1~91 degrees. Air conditioning external damper opening of 40° Heating external damper opening of 40° Fan external damper opening of 40° the OK/CLEAR button to complete 7 Press the setting. * This is the function to set the damper opening of AHU.
Setting function of wired remote controller installation Remote control Master/Slave setting 1 Enter the Installation Setting mode. C the Function Setting button 2 Press repeatedly to reach function code of ‘13’. Flashes the Right button to move to 3 Press ‘Setting of 1’. Flashes the Up/Down button to set the value. 4 Press Setting value of ‘01’ is the Master and ‘00’ is the Slave. Master Slave the OK/CLEAR button to 5 Press complete the setting.
Manual operating mode Manual operating mode SA fan operation 5 3 2 SA fan operating LED will be turned on. 2 you set the SA Fan Switch to OFF, 3 When the SA fan will stop operating and can 1 be operated automatically with the wired remote controller. * The SA switch of the control kit during AHU operation with the wired remote controller must be maintained at OFF condition. (Operating LED) RA fan operation you set the RA Fan Switch to ON, 1 When the RA fan will operate manually.
Check before requesting for service Check before requesting for service When there is a problem with the product, check the following detail before requesting for service to the service center. Symptom The product does not work at all. The cool air does not flow continuously. I cannot set the scheduled operation. AHU automatically goes off. Check Action * Is the main switch turned off? * Turn on the main power switch. * Is there a power outage? * Check the other electric appliances.
Test run Test run Self diagnosis function ■ This function displays the self diagnosis and the type of error if identified. ■ For the error display, the applicable code is displayed on the 7 segment LED on the wired remote controller and AHU controller. ■ If there are 2 or more errors simultaneously, the codes are displayed in the order of occurrence. ■ Once you resolve the error, the error code will disappear.
Test run Error display (AHU) ■ ‘##’ refers to the address information of the communication PCB.
Test run Example of error Situation Error CH 2 01 Communication error between communication PCB and outdoor unit CH 5 05 SA duct temperature error CH 13 02 RA duct humidity error CH 14 01 (Communication PCB rotary switch number: 05) Sequence of error * The occurrence of error is displays in the order of 1 * Refer to page 43 for details of 2 and 3 . 2 3 on 7 segment. Refer to the MULTI V technical material for details on error code and checkpoints of the outdoor unit.
AHU CONTROL KIT
P/No.: MFL62171702 Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.
