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Manuals
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LG Manuals
Fan
GEN2 Series
Installation and operation manual
LG GEN2 Series Installation And Operation Manual
Rooftop dedicated outdoor air systems
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
General Safety Information
Table of Contents
Unit Nomenclature
General Data
Product Overview
Heating
Airflow Arrangement
Safety Listing
Models and Capacities
Subassemblies
Installation
Typical Unit Weights and Dimensions
Additional Clearances for Packaged
Handling Concerns for Units with Package
Lifting
Roof Curb Mounting
Optional Piping Vestibule
Ductwork Configurations
Rail Mounting and Layout
Gas Connections
Piping Installation
Optional Coil Piping
Condensate Drain Trap
Condensate Overflow Switch
Electrical Information
Determine the Size of Main Power Lines
Determine the Size of Electric Heater Wiring
Provide the Opening(S) for the Electric Connections
Connect the Power Supplies
Wire the Optional Convenience Outlet
Connect Field-Wired Low Voltage Components
Field-Provided Disconnect
Phase Monitor
Variable Frequency Drive
Supply Fan VFD Sequence
Optional Component Operation
Exhaust Fan VFD Sequence
Exhaust Fan Only Power
Hot Gas Reheat Valve
Factory-Installed Refrigeration System Components
Start-Up Unit
Pre-Start-Up Checklist
Special Tools Required
Start-Up Procedure
Voltage Imbalance
Start-Up Checklist
Start-Up Components
Fan
Supply Fan (Plenum Type)
Fan Wheel Rotation Direction
Supply/Exhaust Fan
Vibration
Discharge Air Temperature Sensor
Optional Dirty Filter Switch
Optional Energy Wheel
Troubleshooting
Microprocessor Controller
Phase Monitor
Variable Frequency Drive
Optional Digital Scroll Compressor Controller
Routine Maintenance
Maintenance Procedure
General Safety Information
Unit Identification
Furnace Model Number
Burner Control Turndown
Furnace Serial Number
ETL Listing
Product Overview
Furnace Control Center
Furnace Control Center Components
Typical Furnace Control Logic
Typical Furnace, Electrical and Control Components
Gas-Fired Burner Turndown
Electronic Modulation
Available Turndown Control Options
Installation of Venting for Outdoor Units
Installation of Venting for Indoor Units
Venting Methods
Installation of Standard Indoor Venting
Horizontal
Installation of Concentric Venting
Horizontal
Vertical
Installation of Control Wiring
Installation of Discharge Air Sensor
Installation of Gas Piping
Test the System for Leaks
Gas Pressure Test Ports
Sequence of Operation
Start-Up / Standby
Heat Mode
Recovery from Lockout
Performance Data
Start-Up - Furnaces (All Units)
Modulating Valve High Fire Setting
Modulating Valve Low Fire Setting
Ignition Controller
Reference: Controls
Furnace Control with Microprocessor
Maintenance
Combustion Blower Motor
Burners and Orifices
Heat Exchanger
Flue Collector Box
Electrical Wiring
Gas Train
Replacement Parts
Maintenance Log
Controller Overview
Expansion Boards
Connecting to the Web
Service Password
Startup Settings
Expansion Board Addresses and Dip Switch Settings
IP Address
Software Backup and Restore
AC Smart Setup
Navigation
Menu
Advertisement
Quick Links
1
Unit Nomenclature
2
General Data
3
Product Overview
4
Models and Capacities
Download this manual
ROOFTOP DEDICATED
OUTDOOR AIR SYSTEMS (DOAS)
INSTALLATION AND OPERATION MANUAL
GEN2 Series (AR-DR)
Base Rooftop DOAS
500 to 18,000 CFM
GEN2 Series (AR-DE)
Energy Recovery Wheel Rooftop DOAS
1,000 to 18,000 CFM
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This manual is also suitable for:
Ar-dr
Ar-de
Ar-dr02-03a
Ar-dr02-04a
Ar-dr02-05a
Ar-dr02-06a
...
Show all
Ar-dr02-07a
Ar-dr12-05a
Ar-dr12-07a
Ar-dr12-10a
Ar-dr12-12a
Ar-dr12-15a
Ar-dr22-15a
Ar-dr22-17a
Ar-dr22-20a
Ar-dr22-25a
Ar-dr22-30a
Ar-dr31125a
Ar-dr31130a
Ar-dr31135a
Ar-dr31143a
Ar-dr35-30a
Ar-dr35-40a
Ar-dr35-50a
Ar-dr35-60a
Ar-dr35-70a
Ar-de12-05a
Ar-de12-07a
Ar-de12-10a
Ar-de12-12a
Ar-de12-15a
Ar-de22-15a
Ar-de22-17a
Ar-de22-20a
Ar-de22-25a
Ar-de22-30a
Ar-de31125a
Ar-de31130a
Ar-de31135a
Ar-de31143a
Ar-de35-30a
Ar-de35-40a
Ar-de35-50a
Ar-de35-60a
Ar-de35-70a
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