LG ARND093DCR4 ARND153DCR4 ARND203DCR4 User Manual

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Variable Refrigerant Flow Split Compact DOAS

ARND***DCR4 Series

(900, 1,500 and 2,000 CFM)

LG SPLIT COMPACT DEDICATED

OUTDOOR AIR SYSTEM (DOAS)

INSTALLATION MANUAL

Table of Contents3
Safety Precautions4
Unit Nomenclature8
Product Overview9
Interior Components9
Electrical Components10
General Data11
Electrical12
External Dimensions13
Wiring15
Refrigerant Flow - Cooling17
Refrigerant Flow - Heating19
Sound Power Levels20
Installation21
Receiving21
Handling21
Storage / Removing21
Assemblies21
Location Selection22
Roughing in22
Mounting Dimensions23
Service Clearances24
Piping Connections24
Field-Installed Outdoor Air (OA) Filter25
Unit Piping26
Refrigerant Safety26
Piping Handling26
Brazing Procedure27
Pipe Support Location27
Insulate27
Condensate Drain Connections28
Condensate Pump Connection28
Unit Drain Information28
Gravity Condensate Pipe Connection29
Installing the Condensate Drain Pipe29
Refrigerant Piping Installation30
Refrigerant System Eng., Allowable Pipe Length30
Sample Layout31
Conditional Applications31
Electrical Information32
General Information32
Separating Power Wiring and Communication Cables32
Power Wiring33
Communication Cable Connections33
Terminal Connections33
Communication Cable Specs. from ODU to DOAS35
Connection Procedure36
Field Wiring37
Field-Mounted Sensors38
Leak Pressure Check / Evacuation40
Leak / Pressure Check40
Ambient Conditions41
Evacuation42
Charging Refrigerant45
Refrigerant Charge Worksheet45
Checks before Initial Startup46
Electric Preheater Accessory47
Safety Precautions48
Overview50
General Data51
Dimensions52
Wiring Diagram54
Installation Procedure56
Sequence Setting59
Controller64
Overview64
Connecting to the Web UI64
Service Password65
Startup Settings65
IP Address65
DOAS Unit Address Setting65
Central Controller Setting66
AC Smart / ACP Controller Setup67
Main Control Board Terminal Connections70
CAREL Control Board Terminal Connections70
LG Control Board Layout71
UI Module72
NTC Module73
EEV Module74
Navigation75
Software Update78
Bacnet / Modbus Object List79
Installation Checklist86

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LG ARND093DCR4 ARND153DCR4 ARND203DCR4 Specifications

General

Brand	LG
Model	ARND093DCR4 ARND153DCR4 ARND203DCR4
Category	Chiller
Language	English

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LG ARND093DCR4 ARND153DCR4 ARND203DCR4 User Manual

Table of Contents

LG ARND093DCR4 ARND153DCR4 ARND203DCR4 Specifications

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