ENGLISH ITALIANO ESPAÑOL FRANCAIS DEUTSCH ΕΛΛΗΝΙΚΆ PORTUGUESE INSTALLATION MANUAL TYPE : Dry contact for thermostat MODELS : PDRYCB300 http://www.lghvac.com www.lg.com P/NO : MFL67708306 NEDERLANDS • 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 for thermostat Owner’s & installation manual TABLE OF CONTENTS n Safety Precautions .............................................................3~5 n Name of each part ..................................................................6 n Installation Method .............................................................7~9 Installation inside of the indoor unit..........................................................7 Installation outside of the indoor unit .....................................
Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. n 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. n Meanings of symbols used in this manual are as shown below. Be sure not to do.
Safety Precautions Do not install the product in the place where rain can get to the product. • Cause product failure Do not install the unit in humid locations. • Cause product failure Do not install in a place that cannot withstand the weight of the product. • The product may get damaged or may break. Do not install the product to a place that generates oil, steam, salt, sulfuric gas, etc. • Cause the product’s deformation or failure. Do not put the product closer to fire.
Safety Precautions • Cause electric shock or breakdown. If the product has been inundated, you must refer to a service center or installation shop. • It can cause a fire. Children and elderly use the product under the guardian’s supervision. • Cause accidents and product failures. Servic Centere Do not use for special purpose / place such as conserving flora and fauna, precision instruments, art. Remove the power plug when cleaning. • Otherwise, it can cause property damage.
Name of each part Name of each part Front Case Rear Case 8 7 9 2 11 6 10 5 4 1 3 ISO View PCB Side Side Cable(1 EA) (For Connecting with indoor unit) Installation Manual * Others : Screw 4 EA(For installation) Screw 2 EA(For case assembly) Screw 2 EA(For PCB assembly) DRY CONTACT FOR THERMOSTAT 1. CN_INDOOR 2. CHANGE_OVER_SW 3. CN_OUT(O1,O2) 4. CN_OUT(E3,E4) 5. TEMP_SW 6. SETTING_SW 7. CN_Ther/oper 8. CN_MODE 9. CN_WIND 10. DISPLAY_LED 11.
Installation Method ENGLISH 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.
Installation Method Installation outside of the indoor unit 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. 4) Remove knock out shapes on the rear case (4-sided) according to the connector’s size and direction.
Installation Method 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. Install the product on flat surface and install anchoring screws at more than 2 places. Otherwise the central controller may not be anchored properly. 2. Do not tighten anchoring screws too tightly. It may cause deformation of the case. 3. Do not deform the case at random.
Setting and using method Setting and using method After change any Dry contact setting, then you must press RESET switch to reflect the setting. 1.
Setting and using method ENGLISH 2.
Setting and using method 3. Setting of ‘SETTING_SW’ n Using ‘SETTING_SW’ , select the Option of control Function as described below CN_Ther/Oper CN_MODE CN_WIND CHANGEOVER_SW CN_PI485 CN_INDOOR RESET_SW SETTING_SW DISPLAY_LED TEMP_SW CN_OUT SETTING_SW No.
Setting and using method ENGLISH n Flow Chart for ‘SETTING_SW’ -.
Setting and using method CN_Ther/Oper HIGH MIDDLE LOW COOL HEAT COMM FAN Operation Themal COMM n Function table for the selection of ‘SETTING_SW’ and the input signal CN_MODE CHANGEOVER_SW CN_WIND SETTING_SW 85 RESET_SW SETTING _SW 2,3,6,7,A,B,E,F Others SETTING _SW 8,9,A,B,C,D,E,F Others SETTING _SW 4,5,6,7,C,D,E,F Others FAN 0 0 0 0 1 1 1 1 Low 0 0 0 0 1 1 1 1 Thermal 0 0 1 1 - CN_MODE input HEAT 0 0 1 1 0 0 1 1 CN_WIND input Middle 0 0 1 1 0 0 1 1 CN_Ther/Oper input SETTING_SW CO
Setting and using method ENGLISH 4. Setting of ‘TEMP_SW’ n When setting the desired temperature of the Dry contact Module : When operating the indoor unit using Dry contact module’s desired temperature, set the desired temperature according to the ‘TEMP_SW’ setting. If Thermostat priority control mode is disabled, the desired temperature can be reset by other controller - Use the ‘TEMP_SW’ to set the temperature as shown below.
Setting and using method 5. Installation of thermostat n When interlocking with thermostat, select the option of control function as described below.
Setting and using method ENGLISH n Details of Installation for thermostat 1) In case of Occupancy sensor, - When motion is detected by the sensor, Indoor unit is enabled. - Otherwise, Indoor unit is disabled. 2) In case of Emergency Stop or Security option. - When emergency condition occurs, Indoor unit is disabled. - Otherwise, Indoor unit is enabled.
Setting and using method n For conventional thermostat signal input Thermostat LG does not supply this section (Field supply) H N 24 V~ H H H HIGH MIDDLE LOW COOL FAN HEAT Operation COMM C R GW Y CHANGE OVER_SW NOT USE CN_Ther/Oper CN_MODE VOLT CN_WIND CHANGEOVER_SW SETTING_SW CN_PI485 CN_INDOOR NON VOLT RESET_SW DISPLAY_LED TEMP_SW CN_OUT Thermostat Fan & System Switch FAN MODE Operation [Auto / On] [Cool / Heat / Off] 0 OFF 1 RT > SP 1 Cool Auto RT < SP 1 RT < SP 1 Heat RT > SP
Setting and using method Thermostat LG does not supply this section (Field supply) H N 24 V~ H H H HIGH MIDDLE LOW COOL FAN Operation COMM Thermal C R Y G O CHANGE OVER_SW NOT USE CN_Ther/Oper CN_MODE VOLT CN_WIND CHANGEOVER_SW SETTING_SW CN_PI485 CN_INDOOR NON VOLT RESET_SW DISPLAY_LED TEMP_SW CN_OUT Thermostat Fan & System Switch FAN [Auto / On] - Auto ON MODE Operation [Cool / Heat / Off] 0 OFF 1 RT > SP 1 Cool RT < SP 1 RT < SP 1 Heat RT > SP 1 FAN 1 RT > SP 1 Cool RT < SP
Setting and using method n For heat pump thermostat with B terminal signal input Thermostat LG does not supply this section (Field supply) H N 24 V~ H H H HIGH MIDDLE LOW FAN HEAT Operation COMM Thermal C R Y G B CHANGE OVER_SW NOT USE CN_Ther/Oper CN_MODE VOLT CN_WIND CHANGEOVER_SW SETTING_SW CN_PI485 CN_INDOOR NON VOLT RESET_SW DISPLAY_LED TEMP_SW CN_OUT Thermostat Fan & System Switch FAN [Auto / On] - Auto ON MODE Operation [Cool / Heat / Off] 0 OFF 1 RT > SP 1 Cool RT < SP
Setting and using method n Monitoring whether the indoor unit is operating: Refer to below and connect to the control device that you want to control. CN_Ther/Oper CN_MODE CN_WIND CHANGEOVER_SW SETTING_SW CN_PI485 CN_INDOOR RESET_SW DISPLAY_LED TEMP_SW CN_OUT Field Supply Power AC or DC Operation Display (Depends on Operation display power type) n Monitoring indoor unit error: Refer to below and connect to the control device that you want to control.
Dry contact for thermostat
