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LG PRVC0 Installation Manual

Variable water flow control kit
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INSTALLATION MANUAL
Variable Water Flow Control Kit
• 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.
MODEL : PRVC0
P/NO : MFL42540224
www.lg.com

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  Summary of Contents for LG PRVC0

  • Page 1 • 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. MODEL : PRVC0 www.lg.com P/NO : MFL42540224...
  • Page 2: Table Of Contents

    Variable Water Flow Control Kit Installation manual TABLE OF CONTENTS ■ Safety Precautions................3 ■ Accessory Parts..................5 ■ Name of each part ................6 ■ Installation Method................7 ■ Setting and using method ..............8 1. Wiring Diagram.................8 2. Power source input................9 3. Wiring for variable water flow control PCB and transformer ...11 4.
  • Page 3: Safety Precautions

    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.
  • Page 4 Safety Precautions ■ During use Do not modify or extend the Do not pour water inside the When the product is submersed power cord. product. in water, always request for service to the service center or the installation service provider. •...
  • Page 5: Accessory Parts

    Accessory Parts Accessory Parts Variable Water Transformer Flow Control PCB Cable Assy Terminal Block Assy Screw (4EA) Wire Holder Installation manual 5...
  • Page 6: Name Of Each Part

    Name of each part Name of each part Variable Water Flow Control Kit 1. CN_PWR : Power input terminal(DC 12V) 2. CN_AO : Signal output terminal to control a water flow control valve(DC 0~10V) 3. CN_OUT : Outdoor unit connector 4.
  • Page 7: Installation Method

    Installation Method Installation Method 1. Shut off the main power line of outdoor unit. 2. Install the VWFC(Variable Water Flow Control) PCB in the C/BOX by using screws. 3. Install the transformer in the C/BOX by using screws. 4. Install the terminal block in the C/BOX by using screws. 5.
  • Page 8: Setting And Using Method

    Setting and using method Setting and using method 1. Wiring Diagram 8 Variable Water Flow Control Kit...
  • Page 9: Power Source Input

    Setting and using method 2. Power source input ■ When wiring power source from outdoor unit DC12V or DC15V Outdoor Unit ■ When using external power source DC12V Power Source Notes This device can accept only DC Power input. Do not input 220VAC. Otherwise It will cause a serious damage. Using external power source is recommended.
  • Page 10 Setting and using method ■ When using ODU Dry contact with Central Control Devices Central BUS_A Control Devices BUS_B 10 Variable Water Flow Control Kit...
  • Page 11: Wiring For Variable Water Flow Control Pcb And Transformer

    Setting and using method 3. Wiring for variable water flow control PCB and transformer Notes This device can accept only DC 12V power input. Do not input AC power. Otherwise it will cause a serious damage. The power(DC 12V) line is recommended by AWG 23 (0.573mm, 0.0668Ω/m) . Installation manual 11...
  • Page 12: Wiring For Variable Water Flow Valve

    Setting and using method 4. Wiring for Variable Water Flow Valve Central Control Device AC 24V Power Source for Variable Slave Master Water Flow Valve DC 0~10V Control Signal for Variable Water Flow Valve Notes The variable water flow valve control PCB can control maximum two valves. Case of one valve, the slave signal connecter must not use.
  • Page 13: Wiring Method

    Setting and using method 5. Wiring Method ■ Installation picture 1 : Terminal Block 2 : Transformer 3 : VWFC PCB Installation manual 13...
  • Page 14 Setting and using method ■ Wiring Method Transformer Input VWFC PCB Power (AC 220V) Power (DC 12V) Wire Holder Wire Holder Transformer Output Communication Cable Power (AC 24V) 14 Variable Water Flow Control Kit...
  • Page 15 Setting and using method ■ Wiring Method Signal for Central Control Power for Variable Water Signal for Variable Water Flow Control Valve (AC 24V) Flow Control Valve (DC 0~10V) Installation manual 15...
  • Page 16 Setting and using method ■ Wiring Method Side Panel Hole for Signal Cable (DC 0~10V) of Hole for Signal Cable (DC 0~10V) of Hole for Signal Cable (DC 0~10V) of Variable Variable Water Flow Control Valve ariable Water Flow Control ater Flow Control Valve alve Hole for Power Cable (AC24V) of...
  • Page 17: Setting Of 'Swdip

    Setting and using method 6. Setting of ‘SWDIP’ ■ Using ‘SWDIP’, select the option of control function as described below L1 2 3 4 Notes Default status is L1 : ON L2 : OFF • Output signal setting Position Function Control signal : DC 0V(OFF), DC 8~10V(ON) L1 2 3 4 Control signal : DC 0V(OFF), DC 6~10V(ON)
  • Page 18: Setting Of Outdoor Unit Dip Sw

    Setting and using method 7. Setting of outdoor unit dip SW SW01B SW02B 1 2 3 4 5 6 7 1 2 3 4 5 6 7 Position Function Variable Water Flow Control Mode 1 2 3 4 5 6 7 1 2 3 4 5 6 7 Notes After change ‘SWDIP’...