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LG PAHCMR000 Installation Manual
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LG PAHCMR000 Installation Manual

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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.
Applied(AHU)
AHU CONTROLLER
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
MFL69940001
Rev.02_020420
Copyright © 2017 - 2020 LG Electronics Inc. All Rights Reserved.
www.lg.com

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  • Page 1 [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 www.lg.com MFL69940001 Rev.02_020420 Copyright © 2017 - 2020 LG Electronics Inc. All Rights Reserved.
  • Page 2 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.
  • Page 3 SAFETY INSTRUCTIONS • Securely attach the electrical part cover to AHU Comm. Kit. - If the electric part cover of AHU Comm. Kit is not attached securely, it could result in a fire or electric shock due to dust, water, etc. •...
  • Page 4 • When the product is submerged into water, always contact the service center. - Otherwise, it may cause a fire or electrical shock. • The Ingress Protection Marking given in this manual as IP20 restricts installation location, LG Electronics is not responsible for installation locations non-compliant to IP20. CAUTION Installation •...

  • Page 5: Table Of Contents

    RETURN AIR TEMPERATURE CONTROL (PAHCMR000) DIP SW DISCHARGE AIR TEMPERATURE CONTROL (PAHCMS000) Main Module DIP SW EXTERNAL CONNECTION DIAGRAM Return air temperature control BMS PROTOCOL BACnet points of PAHCMR000 (Return air temperature control) CONNECTION & SETTING GUIDE COMMUNICATION MODULE & EEV KIT CONNECTION GUIDE...

  • Page 6: Installation Layout

    Item Specification ① AHU(Air Handling Unit) Local supply ② AHU Communication kit PAHCMS000/PAHCMR000 ③ Remote controller LG wired remote controller(Optional) ④ Outdoor unit MULTI V ⑤ EEV Kit PRLK048A0/PRLK096A0/PRLK396A0/PRLK594A0 Sensor : Ø 5(NTC 5 kΩ) ⑥ Pipe in(Liquid) thermistor length : 5 m, Cable color : Black Sensor : Ø...

  • Page 7: Technical Specification

    0 ~ 98 % NOTE • Maximum connectable PAHCMR000(Communication Module) to Discharge air temperature control(PAHCMS000) AHU Communication Kit is less or equal than 3, i.e. ‘PAHCMS000 x 1 + PAHCMR000 x 3 system’ can control 4 circuits of the DX coil.

  • Page 8: Controller Module

    IEC61558-2-6 and NEC Class 2.) • Please check the Product operation range below. • The Ingress Protection Marking given in this manual as IP20 restricts installation location, LG Electronics is not responsible for installation locations non-compliant to IP20. Power supply DC 12 V Ambient Temperature -20 ~ 65 °C DB...

  • Page 9: Communication Kit

    Open the door using the key. Drill 4 holes on correct position and fix the Communication Kit box securely with 4 screws (Field supply) through the holes Ø 9 mm(11/32 inch). 4- 9 HOLES <Side> <Front> <Rear> Size (mm) Model PAHCMR000 PAHCMS000...
  • Page 10 COMMUNICATION KIT Connection of the wires For connection to outdoor unit and to controller (Field supply) : Pull the wires inside through the cable gland and close the nut firmly in order to ensure a good pull relieve and water protection. The wires require an additional pull-relief.

  • Page 11: Thermistors Installation

    THERMISTORS INSTALLATION THERMISTORS INSTALLATION Pipe thermistors Installation INSTRUCTION Location of the pipe thermistors • To prevent condensation from accumulating on the bottom of the pipe A correct installation of the thermistors is sensor, install the sensor by lifting it up required to ensure a good operation : as shown below.

  • Page 12: Return Air Temperature Control (Pahcmr000)

    Using Single Split outdoor unit ODU Type MULTI V Comm. Using MULTI V outdoor unit Communication Controlled by DDC Modbus or LG remote controllers & central controllers Control Type Controlled by DDC through Contact signal Contact signal (LG Central controller can only monitor status)
  • Page 13 RETURN AIR TEMPERATURE CONTROL (PAHCMR000) n Table of SW4 (Capacity Index Setting) Capacity [kBTU/hr] Capacity [kW] SW4 DIP switch MULTI V Single MULTI V Single 10.6 12.3 14.1 15.8 10.0 22.4 12.5 28.0 14.0 33.6 15.0 39.2 19.0 44.8 23.0 Reserved 50.4...
  • Page 14 RETURN AIR TEMPERATURE CONTROL (PAHCMR000) Electric Wiring Work (PAHCMR000)
  • Page 15 RETURN AIR TEMPERATURE CONTROL (PAHCMR000) Electric specification of port n RS485/SINGLE Communication port Name Port Contents Electrical Spec. Function Communication with Max 500 m, Module DDC(Modbus) DDC or Main module of RS485 CH1 2C x (1.0~1.5) mm Comm. Comm. PAHCMS000 model...
  • Page 16 RETURN AIR TEMPERATURE CONTROL (PAHCMR000) n Universal Input – UI Setting #1 ‘UI setting #1’ is available when DIP SW1-2 is OFF and both of DIP SW 2-3 and SW 2-4 are OFF Note : DIP SW 1-2 is for contact signal control...
  • Page 17 RETURN AIR TEMPERATURE CONTROL (PAHCMR000) Note : DIP SW 1-2 is for contact signal control. Value Electrical Name Port Function Short Open Spec. ON / OFF UI1 (DI) ON/OFF operation control voltage Mode Cooling mode Heating mode UI4 status Target temp. = 16 °C Target temp.
  • Page 18 RETURN AIR TEMPERATURE CONTROL (PAHCMR000) n Digital Output – Status ‘Status Output’ is available when DIP SW1-3 is OFF. Value Name Port Electrical Spec. Function Short Open ON / OFF Operation ON/OFF Status 250 V AC / 1 A ODU Defrost Status...
  • Page 19 RETURN AIR TEMPERATURE CONTROL (PAHCMR000) n Digital Output – Fan Speed (Change) ‘Fan Speed Output (Change)’ is available when DIP SW1-3 is ON and DIP SW1-4 is OFF. • Cooling or Heating – TH ON Value Name Port Electrical Spec.
  • Page 20 RETURN AIR TEMPERATURE CONTROL (PAHCMR000) n Remote Controller Name Port Item Electrical Spec. Function Wired +12 V Communication with Wired Remote REMO Remote Max 50 m Controller SIG/GND Controller n EEV Name Port Item Electrical Spec. Function 12 V EEV Control...

  • Page 21: Discharge Air Temperature Control

    <Communication Module> n Table of SW1~SW4 SW name Item Setting Note Controlled by DDC through Modbus or LG central Communication controller Control Type Controlled by DDC through Contact signal Contact signal LG Central controller can only monitor status LG remote controllers & central controllers or...
  • Page 22 Single Comm. Using Single Split outdoor unit ODU Type MULTI V Using MULTI V outdoor unit Comm. Controlled by DDC Modbus or LG remote controllers & central controllers (It must be Communication 'ON', when comm. module is connected with Control Type Main Module.)
  • Page 23 DISCHARGE AIR TEMPERATURE CONTROL (PAHCMS000) Electric Wiring Work (PAHCMS000) Circuit diagram CAUTION Please check the electrical specification of digital output (DO) of DDC whether 12 V DC or Non-voltage for 'DI Control'. According to the power supply type of DO, please make wirings as below.
  • Page 24 (CEN A/B or 2C x (1.0~1.5) mm V/Single split ODU for ODU INT A/B) (shield wire) Capacity control Max 500 m, Communication with LG Central RS485 CH3 LG Central Comm. 2C x (1.0~1.5) mm central controller through Comm. (shield wire)
  • Page 25 DISCHARGE AIR TEMPERATURE CONTROL (PAHCMS000) Digital Input - External Power Source (12 V DC) *DI is available when DIP SW1-1 is OFF Value Name Port Electrical Spec. Function Short Open ON/OFF DI1 - DCOM 12 V DC 10 mA Operation ON/OFF Cool/Heat DI2 - DCOM Heating...
  • Page 26 DISCHARGE AIR TEMPERATURE CONTROL (PAHCMS000) n UI7(Analog Input) – ODU Capacity Control #1 ‘ODU Capacity Control #1’ is available when DIP SW2-1 is OFF, each Master ODU will have a different operating ratio according to following tables. <Main Module> <1 System > <2 System>...
  • Page 27 DISCHARGE AIR TEMPERATURE CONTROL (PAHCMS000) n UI7(Analog Input) – ODU Capacity Control #1 <3 System> <4 System> Each ODU’s capacity ratio [%] Each ODU’s capacity ratio [%] Total Total Voltage Voltage Capacity Capacity ratio [%] ratio [%] Master#1 Master#2 Master#3 Master#1 Master#2 Master#3...
  • Page 28 DISCHARGE AIR TEMPERATURE CONTROL (PAHCMS000) n UI7(Analog Input) – ODU Capacity Control #2 ‘ODU Capacity Control #2’ is available when DIP SW2-1 is ON, each Master ODU will have the same operating ratio according to following tables. <Main Module> Estimated Eva. Estimated Cond.
  • Page 29 Name Port Item Electrical Spec. Function 12 V EEV Control Max 5 m EEV Control DC/1/2/3/4 NOTE When a communication module (or PAHCMR000) is connected to the main module of PAHCMS000, DO and UI in communication module are not used.
  • Page 30 DDC by Modbus. The address of main module can be set within ‘1~247 in decimal number’. In this case, the address of the main module should be the same as the Modbus address in LG central controller or DDC. ◆ Setting Method - Press ‘Set’...

  • Page 31: External Connection Diagram

    NOTE • The type of power supply of outdoor unit can vary depending on the outdoor model. • Please make wiring between LG controller and outdoor unit with the same polarity. • LG controller can be optionally applied with DDC.
  • Page 32 NOTE • The type of power supply of outdoor unit can vary depending on the outdoor model. • Please make wiring between LG controller and outdoor unit with the same polarity. • LG controller can be optionally applied with DDC.
  • Page 33 NOTE • The type of power supply of outdoor unit can vary depending on the outdoor model. • Please make wiring between LG controller and outdoor unit with the same polarity. • LG controller can be optionally applied with DDC.
  • Page 34 NOTE • The type of power supply of outdoor unit can vary depending on the outdoor model. • Please make wiring between LG controller and outdoor unit with the same polarity. • LG controller can be optionally applied with DDC.

  • Page 35: Bms Protocol

    BMS PROTOCOL BMS PROTOCOL BACnet points of PAHCMR000 (Return air temperature control) n AHU Control / Monitor point Unit Object Name Object Name (XX : Unit Address Inactive Active Type Number) TEXT-0 TEXT-1 TEXT-2 TEXT-3 TEXT-4 TEXT-5 ON/OFF (Setting) ac_StartStopCommand_XX...
  • Page 36 BMS PROTOCOL n Outdoor unit Monitor point Unit Object Name Object Name (XX : Unit Address Inactive Active Type Number) TEXT-0 TEXT-1 TEXT-2 TEXT-3 TEXT-4 TEXT-5 Compressor Operation Status outdoor_CompOperStatus_XX Stop(0) Run(1) Inverter Fan 1 frequency outdoor_InverterFanFreq_XX High Pressure outdoor_HighPressure_XX Low Pressure outdoor_LowPressure_XX Suction Temperature...
  • Page 37 BMS PROTOCOL Lonworks points of PAHCMR000 (Return air temperature control) n AHU Control/Monitor point Network Object Name Object Type Unit Variable Type 1 ON/OFF (Setting) SNVT_switch nviOnOff input 0.0 0 (OFF) 100.0 1 (ON) 2 ON/OFF (Status) SNVT_switch nvoOnOff output 0.0 0 (OFF) 100.0 1 (ON)
  • Page 38 BMS PROTOCOL Modbus points of PAHCMR000 (Return air temperature control) Function Code Code Description Register 0x01 Read Coils 00001~00008 0x02 Read Discrete inputs 10001~10008 0x03 Read Holding Registers 40001~40010 0x04 Read Input Registers 30001~30008 0x05 Write Single Coil 00001~00008 0x06...
  • Page 39 BMS PROTOCOL Modbus points of PAHCMR000 (Return air temperature control) Function Code Code Description Register 0x01 Read Coils 00001~00008 0x02 Read Discrete inputs 10001~10030 0x03 Read Holding Registers 40001~40010 0x04 Read Input Registers 30001~30016 0x05 Write Single Coil 00001~00008 0x06...
  • Page 40 BMS PROTOCOL Memory Map Function Code Register Description Value explanation 10027 Reserved 10028 Reserved 10029 Reserved 10030 Reserved 30001 Error Code • 1xxxx 30002 Reserved 30003 Reserved 30004 Reserved 30005 Reserved 30006 Reserved 30007 Reserved 30008 Reserved 30009 Reserved 30010 Reserved 30011 RA Temp.

  • Page 41: Connection & Setting Guide

    CONNECTION & SETTING GUIDE CONNECTION & SETTING GUIDE Fan & Alarm interlock guide 1 Return air temperature controller If DO Type setting(SW 1-3) set as 'Status', fan operating signal can be interfaced with operation status signal at ‘DO 1’ in ‘DIGITAL OUTPUT’ Operation display (Field Supply) Relay (Field Supply)
  • Page 42 CONNECTION & SETTING GUIDE 2 Discharge air temperature controller Fan operating signal can be interfaced with operation status signal at ‘DO 2’ in ‘DIGITAL OUTPUT’ of main module. Operation display (Field Supply) Relay (Field Supply) Relay Power source : Max 30 V DC / 1 A, 250 V AC / 1 A NOTE The fan is kept ‘ON’...
  • Page 43 • Remote controller should be connected to PAHCMS000 and remote controller connected to PAHCMR000 unit can only monitor status. • LG Central controller addressing for discharge air temp. controller should be set as the same address of the main module’s address.

  • Page 44: Communication Module & Eev Kit Connection Guide

    COMMUNICATION MODULE & EEV KIT CONNECTION GUIDE COMMUNICATION MODULE & EEV KIT CONNECTION GUIDE Open the EEV Kit terminal box cover (A). Check the marked color label and connect the cable using the driver (+). • Example) Model PRLK594A0 * Electrical connection method of PRLK396A0 is the same as PRLK048 / PRLK096. (Correct wiring) ■...
  • Page 45 COMMUNICATION MODULE & EEV KIT CONNECTION GUIDE Use the screwdriver (+) to connect the EEV wires to the terminal block (D) according to the displayed instructions. ■ B: Electrical connection #1 AHU Controller ■ C: Electrical connection #2 AHU EEV Controller Note BR : Brown RD : Red...

This manual is also suitable for:

Pahcms000Pahcmm000Pahcmc000

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