AAON H3 Series - Table of Contents

2
Table of Contents
Safety .............................................................................................................................................. 6
H3 Base Model Description .......................................................................................................... 11
General Information ...................................................................................................................... 17
Codes and Ordinances ............................................................................................................... 18
Receiving Unit ........................................................................................................................... 18
Storage ....................................................................................................................................... 19
Wiring Diagrams ....................................................................................................................... 19
Installation..................................................................................................................................... 19
Locating the Unit ....................................................................................................................... 19
Lifting and Handling the Unit ................................................................................................... 23
Unit Assembly ........................................................................................................................... 23
Control Box ............................................................................................................................... 25
Electrical .................................................................................................................................... 26
Duct Connection ........................................................................................................................ 29
Condensate Drain Pans .............................................................................................................. 29
Condensate Drain Piping ........................................................................................................... 30
Startup ........................................................................................................................................... 31
Filters ......................................................................................................................................... 31
Supply Fans ............................................................................................................................... 31
Fan Air Flow Adjustment .......................................................................................................... 31
Operation....................................................................................................................................... 33
Thermostat Operation ................................................................................................................ 33
Split System DX Cooling Operation and Control ..................................................................... 33
Chilled Water or Non-Compressorized DX Cooling Operation ............................................... 33
Steam or Hot Water Preheating Operation ................................................................................ 33
Electric Heating Operation ........................................................................................................ 33
Maintenance .................................................................................................................................. 33
DX Cooling ............................................................................................................................... 34
Condensate Drain Pans .............................................................................................................. 34
Winterizing Coils ...................................................................................................................... 34
Supply Fans ............................................................................................................................... 34
E-Coated Coil Cleaning ............................................................................................................ 34
Options .......................................................................................................................................... 36
Heating Coils ............................................................................................................................. 36
Chilled Water Coil .................................................................................................................... 37
Direct Expansion (DX) Systems ............................................................................................... 38
Evaporator Coil ......................................................................................................................... 39
Thermal Expansion Valve ......................................................................................................... 39
Hot Gas Reheat .......................................................................................................................... 39
Hot Gas Bypass ......................................................................................................................... 39
Purge Circuit ............................................................................................................................. 40
Adjusting Refrigerant Charge ................................................................................................... 40
Energy Recovery Units ............................................................................................................. 48
Initial Mechanical Check and Setup ...................................................................................... 48