AAON M2-036 - Manual (Page 3)

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Table of Contents
Safety .............................................................................................................................................. 7
Model Number Nomenclature ...................................................................................................... 13
M2 Base Model Description ......................................................................................................... 14
Fan Module Description ............................................................................................................... 15
Filter Module Description ............................................................................................................. 16
Mixing Box Module Description .................................................................................................. 17
Heat Module Description .............................................................................................................. 18
Blank Module Description ............................................................................................................ 19
Coil Module Description............................................................................................................... 20
Control Panel Module Description ............................................................................................... 21
Energy Recovery Module Description .......................................................................................... 22
Condenser Module Description .................................................................................................... 23
Typical Configurations ................................................................................................................. 24
Unit Orientation ............................................................................................................................ 25
General Information ...................................................................................................................... 26
Codes and Ordinances ............................................................................................................... 27
Receiving Unit ........................................................................................................................... 27
Storage ....................................................................................................................................... 28
Packaged Direct Expansion (DX) Units .................................................................................... 28
Gas or Electric Heating ............................................................................................................. 29
Wiring Diagrams ....................................................................................................................... 29
Condensate Drain Pan ............................................................................................................... 29
Installation..................................................................................................................................... 30
Locating Units ........................................................................................................................... 30
Lifting the Unit .......................................................................................................................... 31
Indoor Floor Mounted Units ..................................................................................................... 34
Indoor Suspended Units ............................................................................................................ 34
Module Assembly ..................................................................................................................... 35
Refrigerant Piping ..................................................................................................................... 39
Determining Refrigerant Line Size ........................................................................................... 40
Water-Cooled Condenser .......................................................................................................... 44
Open Loop Applications ........................................................................................................ 44
Freezing Water in the Heat Exchanger .................................................................................. 45
Water Piping .......................................................................................................................... 46
Water-Cooled Condenser Safeties ......................................................................................... 49
Electrical .................................................................................................................................... 49
Cutting Electrical Openings ................................................................................................... 50
Thermostat Control Wiring .................................................................................................... 51
Condensate Drain Piping ........................................................................................................... 52
Blower Wheels .......................................................................................................................... 53
Air Adjustment ...................................................................................................................... 54
Waterside Economizer .............................................................................................................. 55
Hot Water and Steam Coils ....................................................................................................... 56
Chilled Water Coils ................................................................................................................... 56
Electric Heating ......................................................................................................................... 56