FloAire NSA User Manual
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TABLE OF CONTENTS
WARRANTY .................................................................................................................................................. 3
INSTALLATION ............................................................................................................................................. 4
Mechanical ................................................................................................................................................ 4
Site Preparation .................................................................................................................................... 4
Intake Assembly ................................................................................................................................... 4
Curb and Ductwork ............................................................................................................................... 4
Recommended Supply Ductwork Sizes ............................................................................................... 4
Roof Mount Installation ......................................................................................................................... 5
Wall Mount Installation ......................................................................................................................... 5
Indoor (Inline) Installation ..................................................................................................................... 6
Installation with Exhaust Fan ................................................................................................................ 6
Electrical ................................................................................................................................................... 7
Copper Wire Ampacity ......................................................................................................................... 7
PSC (Permanent Split Capacitor) Motor Speed Control ...................................................................... 8
ECM (Electronically Controlled Motor) Speed Control ......................................................................... 8
Motorized Intake Damper ..................................................................................................................... 8
Fan to Building Wiring Connection ....................................................................................................... 9
OPERATION ............................................................................................................................................... 10
Start Up ................................................................................................................................................... 10
Special Tools Required ...................................................................................................................... 10
Start Up Procedure ............................................................................................................................. 10
Pulley Setscrew Torque ..................................................................................................................... 11
Pulley Adjustment ............................................................................................................................... 11
Pulley Alignment ................................................................................................................................. 11
Proper Belt Tension ............................................................................................................................ 11
Pulley Combination Chart ................................................................................................................... 12
Re-Circulating Control Options ............................................................................................................... 13
Manual Positioning Control (Potentiometer) ...................................................................................... 13
Two Position Control .......................................................................................................................... 13
Static Pressure Control (Photohelic) .................................................................................................. 13
A306 Outdoor Sensor ......................................................................................................................... 14
Building Signal Damper Control ......................................................................................................... 14
Troubleshooting ...................................................................................................................................... 15
Troubleshooting Chart ........................................................................................................................ 15
MAINTENANCE .......................................................................................................................................... 16
General Maintenance ............................................................................................................................. 16
2 weeks after startup .............................................................................................................................. 16
Every 3 months ....................................................................................................................................... 16
Filter Quantity Chart ........................................................................................................................... 17
Yearly ...................................................................................................................................................... 17
Start-Up and Maintenance Documentation ............................................................................................ 18
Job Information ................................................................................................................................... 18
Fan Unit Information ........................................................................................................................... 18
Maintenance Record .......................................................................................................................... 18
Factory Service Department ............................................................................................................... 18