Table of Contents
Advertisement
Quick Links
INSTALLATION MANUAL
AIR
CONDITIONER
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.
WATER COMMUNICATION MODULE
Original instruction
[Representative] LG Electronics Inc. EU Representative : LG Electronics
European Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si,
Gyeongsangnam-do, KOREA
MFL62179526
Rev.01_112919
Copyright © 2019 LG Electronics Inc. All Rights Reserved.
www.lg.com
Advertisement
Table of Contents
Related Manuals for LG PAHCMW000
Summary of Contents for LG PAHCMW000
- Page 1 WATER COMMUNICATION MODULE Original instruction [Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands [Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA MFL62179526 www.lg.com Rev.01_112919...
-
Page 2: Safety Instructions
SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS The following safety guidelines are intended to prevent unforeseen risks or damage from unsafe or incorrect operation of the appliance. The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as described below. This symbol is displayed to indicate matters and operations that can cause risk. Read the part with this symbol carefully and follow the instructions in order to avoid risk. - Page 3 SAFETY INSTRUCTIONS • Do not disassemble or repair the product randomly. - It will cause a fire or electrical shock. • Do not install the product in a place where there is the concern of falling down. - Otherwise, it may result in personal injury. •...
-
Page 4: Before Installation
BEFORE INSTALLATION BEFORE INSTALLATION CAUTION • Don't install or operate the unit in rooms mentioned below. ① Where mineral oil, like cutting oil is present. ② Where the air contains high levels of salt such as air near the ocean. ③... -
Page 5: Installation Scene
INSTALLATION SCENE INSTALLATION SCENE Schematic Diagram This module is intended to connect 3rd party plate heat exchanger to LG outdoor unit with the ability to control water temperature from 3rd party DDC or LG remote controller. Water Remote 3rd Party DDC... -
Page 6: Specification
IEC61558-2-6 and NEC Class 2.) • Please check the Product operation range below. • The Ingress Protection marking for this product restricts installation location. LG Electronics is not responsible for installation at locations non-compliant to the IP rating. Power Supply... -
Page 7: Installation
INSTALLATION INSTALLATION Electrical Wiring Work PAHCMW000 Circuit diagram DIP switch Contents Connection Port Function CH1 (A+ / B-) Module Comm. Port Communication Port Modbus RS485 Communication with Multi V CH2 (A+ / B-) IDU Comm. Port Outdoor Flow Switch Flow Switch Input by 3... - Page 8 • Detailed actions for the DIP switch value are shown below. S/W name Item Setting Note Reserved Using Multi V outdoor unit LG Wired remote controller / SW 1 Modbus RTU (by 3 party DDC) Control type Digital / Analogue Inputs Reserved...
- Page 9 INSTALLATION S/W name Item Setting Note Reserved Master/Slave Master Off/Off Heat Pump SW 3 Off/On Reserved Operation Mode Setup On/Off Reserved On/On DHW Only Reserved...
- Page 10 INSTALLATION SW 4 Capacity [kBtu/h] Capacity [kW] SW 4 Capacity [kBtu/h] Capacity [kW] 15.8 22.4 28.0 33.6 39.2 10.6 44.8 12.3 50.4 14.1 56.0 h It’s needed to match indoor unit’s capacity with outdoor unit by DIP switch setting. h Select the biggest available capacity(192 kBtu/h) index when EEV(DX Coil) capacity is bigger than 192 kBtu/h or 56 kW.
-
Page 11: Electrical Work
INSTALLATION Electrical Work Connection of the wires For the wired remote controller wire and outdoor unit communication wire, remove the coating at the end of the wire to connect and use the Pin type to connect to the terminal block. Pin type CAUTION •... -
Page 12: Pipe Thermistors Installation
THERMISTORS INSTALLATION THERMISTORS INSTALLATION Pipe thermistors Installation Location of the pipe thermistors A correct installation of the thermistors is required to ensure a good operation: Pipe In : Install the thermistor at the refrigerant inlet of the heat exchanger as close as possible to the heat exchanger. - Page 13 THERMISTORS INSTALLATION INSTRUCTION • Put the thermistor wire slightly above to avoid water accumulation on down of the thermistor. • For sensing the evaporator’s temp. in thermistor, Put the upper port of the thermistors on the evaporator, this is the most sensitive point of the thermistor. 45°...
-
Page 14: Piping Installation
PIPING INSTALLATION PIPING INSTALLATION Installation of bypass, non-return and EEV Valve When used with Multi V Outdoor unit a bypass valve and non-return valve must be installed in the refrigerant cycle following the diagram and table below. The solenoid valve must be connected to the bypass valve output on the communication module. - Page 15 PIPING INSTALLATION Flow Switch and Pump The unit must control the main pump and must get the flow input from field supply flow switch Nominal flow should be available when pump output but is closed. Water Communication Module Refrigerant Side Water Side Heat Exchanger...
- Page 16 CONTROL CONTROL AI/DI Control When SW 1-2 is turned off it is possible to control the unit by AI and DI input. The range and temperature of the input can be found below. Open - Not enough flow Flow Switch Closed - Enough flow UNIVERSAL 0-10 V Set Temp...
-
Page 17: Modbus Control
When used for DHW you must connect a 0-10V temperature transmitter to send the water temperature from the DHW tank to the LG communication module. The set point can be given by remote controller. AI or Modbus, The range and temperature of the input can be found below. - Page 18 CONTROL Coil Register Address Range Register Description Value explanation HEX DEC High 1 0x0000 0 00001 Enable/Disable (Heating/Cooling) 0 : Operation OFF / 1 : Operation ON 2 0x0001 1 00002 Enable/Disable (DHW) 0 : Operation OFF / 1 : Operation ON 0 : Normal operation / 5 0x0004 4 00005...