Table Of Contents - LG GEN2 Series Installation And Operation Manual

Table of Contents

General Safety Information------------------------------------------------------------------------------------------------2
Unit Nomenclature-----------------------------------------------------------------------------------------------------------8
General Data------------------------------------------------------------------------------------------------------------------9
Receiving, Handling, Storage---------------------------------------------------------------------------------------------16
Product Overview------------------------------------------------------------------------------------------------------------18
- Cooling
- Heating
- Airflow Arrangement
- Safety Listing
- Models and Capacities
Subassemblies---------------------------------------------------------------------------------------------------------------19
Installation
Typical Unit Weights and Dimensions----------------------------------------------------------------------------------21
Service Clearances ---------------------------------------------------------------------------------------------------------22
Additional Clearances for Packaged DX-------------------------------------------------------------------------------23
Handling Concerns for Units with Package DX ----------------------------------------------------------------------23
Lifting----------------------------------------------------------------------------------------------------------------------------23
Roof Curb Mounting---------------------------------------------------------------------------------------------------------24
Optional Piping Vestibule--------------------------------------------------------------------------------------------------24
Ductwork Configurations---------------------------------------------------------------------------------------------------24
Rail Mounting and Layout--------------------------------------------------------------------------------------------------26
Recommended Electrical and Gas Supply Entry Locations ------------------------------------------------------26
- Gas Supply Piping
- Gas Connections
Piping Installation------------------------------------------------------------------------------------------------------------27
- Optional Coil Piping
- Condensate Drain Trap
- Condensate Overflow Switch
Electrical Information-------------------------------------------------------------------------------------------------------28
- 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
Control Center Operation ------------------------------------------------------------------------------------------------29
- Phase Monitor
- Variable Frequency Drive
- Supply Fan VFD Sequence
Optional Component Operation ----------------------------------------------------------------------------------------31
- Exhaust Fan VFD Sequence
- OA and Recirc Air Damper Sequence
- Exhaust Fan Only Power
- Vapor Tight Lights
- EC Condenser Fans
- Airflow Monitor