FloAire Modular Packaged Unit - Manual (Page 2)

TABLE OF CONTENTS
WARRANTY .................................................................................................................................................. 3
INSTALLATION ............................................................................................................................................. 4
Mechanical ................................................................................................................................................ 4
Site Preparation .................................................................................................................................... 4
Assembly .............................................................................................................................................. 4
Curb and Ductwork ............................................................................................................................... 4
Optional Moisture Eliminator Panel ...................................................................................................... 5
Typical Roof Mount Installation ............................................................................................................ 6
Typical Roof Mount Installation with Exhaust Fan ............................................................................... 6
Plumbing Connections ......................................................................................................................... 7
Typical Cooling Coil Drain Trap ............................................................................................................ 7
Gas ........................................................................................................................................................... 7
Electrical ................................................................................................................................................... 7
Copper Wire Ampacity ......................................................................................................................... 8
MUA/Condenser Fan to Building Wiring Connection ........................................................................... 9
OPERATION ............................................................................................................................................... 10
Start Up ................................................................................................................................................... 10
Special Tools Required ...................................................................................................................... 10
Start Up Procedure ............................................................................................................................. 10
Checking the Refrigerant Charge ....................................................................................................... 11
Superheat and Adjusting TXVs .......................................................................................................... 12
Checking Heating Mode for Units with Heat Pumps .......................................................................... 13
Sequence of Operation-Cooling with Direct, Indirect, or Electric Heat ................................................... 14
Sequence of Operation-Reheat .......................................................................................................... 15
Sequence of Operation-Liquid Bypass ............................................................................................... 15
Sequence of Operation-Cooling Only or Heat Pump.............................................................................. 15
Board Menu ............................................................................................................................................ 18
Troubleshooting Chart ............................................................................................................................ 20
MAINTENANCE .......................................................................................................................................... 21
General Maintenance ............................................................................................................................. 21
2 weeks after startup .............................................................................................................................. 21
Every 3 months ....................................................................................................................................... 21
Yearly ...................................................................................................................................................... 22
Start-Up and Maintenance Documentation ............................................................................................ 23
Job Information ................................................................................................................................... 23
Unit Information .................................................................................................................................. 23
Maintenance Record .......................................................................................................................... 24
Factory Service Department ............................................................................................................... 24