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P/NO : MFL42540218

www.lg.com

INSTALLATION MANUAL

• 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.

TYPE : Dry contact for communication
Model : PQDSBCGCD0

ENGLISH

ITALIANO

ESPAÑOL

FRANÇAIS

DEUTSCH

Summary of Contents for V-net PQDSBCGCD0

Page 1: ...ing 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 TYPE Dry contact for communication Model PQDSBCGCD0 ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH ...

Page 2: ...n Name of each part 5 n Installation Method 6 7 Installation inside of the indoor unit 6 Installation outside of the indoor unit 7 n Setting and using method 8 17 1 Power supply and indoor unit connection 8 2 Setting of input signal 9 10 3 Setting of ʻTEMP_SWʼ 11 4 Setting of ʻCONTROLMODE_SWʼ 12 16 5 Inoddr unit monitoring 17 ...

Page 3: ...allation Service center Service center Do not install the product where it can be exposed to rain It can cause problems to the product Do not install the product in a humid location It can cause problems to the product 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 wi...

Page 4: ...ric shock Do not pour water inside the product It can cause an electric shock and problem to the product When the product is submersed in water always request for service to the service center or the installation service provider It can cause a fire and electric shock Make the children and the elderly use the product with the help of a guardian It can cause a safety accident and problems to the pr...

Page 5: ...select the control mode 7 TEMP_SW Switch to set the desired temperature or indoor unit address 8 CN_OUT O1 O2 Output terminal to show whether the indoor unit is operating Relay contact 9 CN_OUT E1 E2 Output terminal to show whether there is an error with the indoor unit Relay contact 10 LED_DISPLAY LED to display the status of Dry contact 11 RESET_SW Reset switch 12 LED_485 LED to display the stat...

Page 6: ...fer to Setting and Using Method Perform the switch setting according to switch setting method Please refer to Setting and Using Method Fix PCB on suitable space inside of the indoor unit 1 Install the product on flat surface and screw at least 2 places Otherwise the Dry contact may not be anchored properly 2 Do not screw too tightly It may cause deformation of the case 3 Do not deform the case at ...

Page 7: ...nd the rear case anchor the front case at holes using anchor screws Please cut the pole which is located in side of the front case properly Perform the switch setting according to switch setting method Reference to Setting and Using Method DRY CONTACT UNIT 1 Install the product on flat surface and screw at least 2 places Otherwise the Dry contact may not be anchored properly 2 Do not screw too tig...

Page 8: ...ting then you must press RESET switch to reflect the setting n When using the Dry contact for communication independently n When using with the central controller Only when the indoor unit PCB is a non communication model Indoor unit PCB Indoor unit PCB PI485 Connect to central controller CN_PI485 CN_INDOOR CN_INDOOR CN_INDOOR CN_INDOOR CN_INDOOR CN_INDOOR ...

Page 9: ...er COMM Input A Input B LG does not supply this section Field supply Notes Do not input the voltage signal in NON VOLT setting mode otherwise it will cause serious damage COMM Input A Input B LG does not supply this section Field supply Connect separate External voltage of DC5V 12V n When using contact signal input with external power ...

Page 10: ...Setting and using method 10 Dry contact for communication n When using communication signal input BUS B BUS A LG does not supply this section Field supply Room Control Unit ...

Page 11: ... to the TEMP_SW setting When the indoor unit is unlocked the desired temperature can be reset by other controller Use the TEMP_SW to set the temperature as shown below n When setting Dry contact address for using with RCU When operating with Room Control Unit Temp_SW is used for setting Dry contact address Use the TEMP_SW to set the address as shown below TEMP C TEMP SW setting Not use Dry Contact...

Page 12: ... mode OFF OFF ON OFF OFF ON ON ON The indoor unit cannot be controlled through the Dry contact No change in indoor unit condition CONTROL_ MODE S W 0 Notes Indoor unit control priority Central control Dry contact Wired Wireless remote controller indoor unit button Dry contact controls the indoor unit according to the applicable mode when there is a change in input of A and B Notes Set this when th...

Page 13: ...cked Indoor unit stopped locked Indoor unit prior operating condition maintained unlocked Indoor unit operating unlocked Indoor unit stopped locked Indoor unit stopped locked Indoor unit prior operating condition maintained unlocked Indoor unit prior operating condition maintained unlocked Indoor unit prior operating condition maintained locked Indoor unit prior operating condition maintained lock...

Page 14: ...ng mode OFF OFF ON OFF OFF ON ON ON OFF OFF ON OFF OFF ON ON ON Indoor unit operating in power save mode locked Indoor unit operating in power save mode unlocked Indoor unit stopped locked Indoor unit operating not in power save mode unlocked Indoor unit operating in power save mode locked Indoor unit operating in power save mode unlocked Indoor unit stopped locked Indoor unit stopped locked CONTR...

Page 15: ...OFF ON ON ON OFF OFF ON OFF OFF ON ON ON Indoor unit stopped unlocked Indoor unit in cool high operation unlocked Indoor unit in heat high operation unlocked Indoor unit in fan high operation unlocked Indoor unit stopped locked Indoor unit in cool high operation locked Indoor unit in heat high operation locked Indoor unit in fan high operation locked CONTROL_ MODE S W C D Notes Compressor stop mod...

Page 16: ... A Input B Operating mode OFF OFF ON OFF OFF ON ON ON The Dry contact ignores a contact signal Only operates by communication signal input from RCU CONTROL_ MODE S W E Notes Once the Dry contact has been set E mode TEMP_SW is used to set the address of Dry contact 00 0F The Operation Error output Display is disabled ...

Page 17: ...o control Operation Display Field Supply Depends on Operation display power type Power AC or DC Error Display Field Supply Depends on Operation display power type Power AC or DC n Monitoring indoor unit error Refer to below and connect to the control device that you want to control Notes When using the Dry contact for communication with Room Control Unit Operation Error Display will be disabled ...

Page 18: ...18 Dry contact for communication Memo ...

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