LG PMNFP14A0 PI485 for Outdoor Unit Instruction Manual

June 9, 2024
LG

LG PMNFP14A0 PI485 for Outdoor Unit

![LG PMNFP14A0 PI485 for Outdoor Unit

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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.

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.LG PMNFP14A0 PI485 for Outdoor Unit 21
  • Meanings of symbols used in this manual are as shown below.

Installation

Don’t touch with the hands while the power is on

  • There is risk of fire or electric shock.LG PMNFP14A0 PI485 for Outdoor Unit 01

Use standard parts(connector).

  • Do not disassemble or repair the product. There is risk of fire or electric shock.

For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center.

  • Do not disassemble or repair the product. There is risk of fire or electric shock.

Use the correctly rated breaker or fuse.

  • There is risk of fire or electric shock.LG PMNFP14A0 PI485 for Outdoor Unit 04

Do not install, remove, or re-install the unit by yourself (customer).

  • There is risk of fire, electric shock, explosion, or injury.LG PMNFP14A0 PI485 for Outdoor Unit 05

For installation, always contact the dealer or an Authorized Service Center.

  • There is risk of fire, electric shock, explosion, or injury.LG PMNFP14A0 PI485 for Outdoor Unit 06

Operation

When the product is soaked (flooded or submerged), contact an Authorized Service Center.

  • There is risk of fire or electric shock.LG PMNFP14A0 PI485 for Outdoor Unit 07

Be cautious that water could not enter the product.

  • There is risk of fire, electric shock, or product damage.LG PMNFP14A0 PI485 for Outdoor Unit 08

Part Description

PMNFP14A0 /PMNFP14A1 /PGNFP14A0LG PMNFP14A0 PI485 for Outdoor Unit
09

  • The location of parts might be different in case of PMNFP14A1.
  • PMNFP14A0 : For connecting 1 ~ 16 Indoor Units
  • PMNFP14A1 : For connecting 1 ~ 48 Indoor Units
  • PGNFP14A0 : For connecting only base controller

PI485 GATEWAY(M)

  1. CN_PWR: AC 220V Connector

  2. +10V: DC 10V Terminal

  3. GND: Ground

  4. BUS_A: *RS-485 (+) Terminal
    (Refer to note)

  5. BUS_B: RS-485 (-) Terminal

  6. CN_OUT: Outdoor Unit Connector

  7. LED1:RS-485 Status LED

  8. DIP Switch: Product Selection (Refer to the DIP Switch Configuration )

  9. LED01G, 02G, 03G: Communication Status LED

  10. Reset Switch: PI485(M) Reset

  11. CN_DRY: DRY Contact

Note : RS-485 is one of the international interface standards for serial communication.

Accessory Parts

LG PMNFP14A0 PI485 for Outdoor Unit 10 Others : Tie Wrap (3 EA) – Cable Tie Clamp (1 EA)

Installation Guide

Installation Steps
  1. Connect CN_OUT with Outdoor Unit by the cable (provided)
  2. Connect RS-485 BUSA(+) and BUS(B)(-) with other network products (ex. Central Controller , I-Gateway…..)
  3. In case of using Simple Central Controller, connect VCC(+10V) and GND. No need to connect otherwise.
  4. Select DIP Switch Configuration(Refer page 8)
  5. Connect CN_PWR with Outdoor PCB Power connector (Refer page 9, 10)
  6.  After Power is ON, check the Communication LED
    •  LED1G(Red)
    • Normal : LED blinks for 5 times and then gets OFF This process is repeated after every 3 minutes
    • Error : Check the Indoor Unit’s address & wiring connections
    •  LED2G(Yellow), LED3G(Orange)
    •  Normal : LED blinks continuously
    • Error : Check the DIP Switch setting & wiring connections
  7. Check RS-485 Communication Status LED:
    •  Normal : LED’s blinks 2 times in every 10~30 seconds
    •  Error : Check the wiring connections
  8. Finally if all of the above steps are OK, then tie the cables by tie wraps & clampLG PMNFP14A0 PI485 for Outdoor Unit 11
  • Example about Multi V plus

CAUTION:
Install the PI485 on the Noise Filter in Multi V plus.
Install the PI485 after checking the hole for screw.

DIP Switch  Configuration

LG PMNFP14A0 PI485 for Outdoor Unit 12

  • LGAP : LG Air conditioner Protocol

Multi V & Multi(LGAP applied) products Configuration Methods 1 ON, All others OFF: Multi V products(Except CRUN products) or Multi(Non-Inverter) Product applied Common PCB(Refer to NOTE) or Multi(Inverter) Product + Central Controller(All types) – Without LGAP 1 and 4 ON, All others OFF: Multi V products(Except CRUN products) or Multi(Non-Inverter) Product applied Common PCB or Multi(Inverter) Product + Central Controller(All types) – Using LGAP 2 ON, All others OFF: Multi(Non-Inverter) Product + Centroller(All types) – Without LGAP 2 and 4 ON, All others OFF: Multi Non-Inverter Product + Central Controller(All Types) – Using LGAP 1,2,3,4 ON : Multi V CRUN Product + Central Controller(All types) – Using LGAP

  • Please refer the corresponding Central Controller installation manual if you want to know whether your Central Controller is compatible with LGAP or not.

CAUTION:
The wrong setting of air-conditioner switch could cause malfunctioning. Switch setting must be done carefully.
Push the Reset button after changing the Dip switch.
NOTE: Multi(Non-Inverter) Product applied Common PCB

  • PCB P/NO. : 6871A20917
  • P/NO. : 6871A20918
  • P/NO. : 6871A20910
Simple Central  Controller – Connection  Diagram

LG PMNFP14A0 PI485 for Outdoor Unit 18 CAUTION:
After product installation, tie the cables with Clamps & Tie-Wraps provided. Check the right connection of each BUS A and BUS B.

PC/ Deluxe  Central  Controller – Connection  Diagram

LG PMNFP14A0 PI485 for Outdoor Unit 19 CAUTION:
After product installation, tie the cables with Clamps & Tie-Wraps provided. Check the right connection of each BUS A and BUS B.

How to connect the base station controller
  • PGNFP14A0 (Only)

Connecting the PI 485 communication lineLG PMNFP14A0 PI485 for Outdoor
Unit 20 [Steps to connect]
Note: See the PI 485 manual for the internal setting.

  •  Because the RS485 communication line connecting to the PI 485 has polarity, check A and B. PI485

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