FloAire DIRECT FIRED MODULE - Manual (Page 3)

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TABLE OF CONTENTS
WARRANTY ...................................................................................................................................................................................... 4
INSTALLATION ................................................................................................................................................................................. 5
Mechanical ................................................................................................................................................................................... 5
Site Preparation ...................................................................................................................................................................... 5
Assembly ................................................................................................................................................................................ 5
Curb and Ductwork ................................................................................................................................................................. 5
Roof Mount Installation............................................................................................................................................................ 6
Installation with Exhaust Fan ................................................................................................................................................... 6
Direct Fired Module Installation ............................................................................................................................................... 7
Indoor (INLINE) Installation ..................................................................................................................................................... 7
Heat Module Add-On Installation ............................................................................................................................................. 7
Gas .............................................................................................................................................................................................. 8
Gas Connection Sizes ............................................................................................................................................................. 8
Gas Pressure Table ................................................................................................................................................................ 8
Gas Connection Diagram ........................................................................................................................................................ 8
Electrical ...................................................................................................................................................................................... 9
Copper Wire Ampacity ............................................................................................................................................................ 9
PSC (Permanent Split Capacitor) Motor Speed Control ......................................................................................................... 10
ECM (Electronically Controlled Motor) Speed Control ........................................................................................................... 10
Motorized Intake Damper ...................................................................................................................................................... 10
Electric Cabinet Heater ......................................................................................................................................................... 10
Remote Control Panel ........................................................................................................................................................... 11
Fan to Building Wiring Connection ........................................................................................................................................ 11
OPERATION ................................................................................................................................................................................... 12
Start Up ...................................................................................................................................................................................... 12
Special Tools Required ......................................................................................................................................................... 12
Start Up Procedure ............................................................................................................................................................... 12
Pilot Adjustment .................................................................................................................................................................... 12
Pilot Assembly ...................................................................................................................................................................... 12
Main Burner Adjustment ........................................................................................................................................................ 13
Heater Start Up Summary ..................................................................................................................................................... 14
Final Start Up Procedure ....................................................................................................................................................... 15
Pulley Adjustment ................................................................................................................................................................. 15
Pulley Alignment ................................................................................................................................................................... 15
Proper Belt Tension .............................................................................................................................................................. 15
Pulley Setscrew Torque ........................................................................................................................................................ 15
Pulley Combination Chart ...................................................................................................................................................... 16
Sequence of Operation ............................................................................................................................................................... 17
Flame Safety Control ............................................................................................................................................................ 17
Air Flow Switch ..................................................................................................................................................................... 17
DC Flame Signal ................................................................................................................................................................... 17
Modulating Gas System ........................................................................................................................................................ 18
High Temperature Limit ......................................................................................................................................................... 18
Operation Summary .............................................................................................................................................................. 18
Optional Remote Panel Circuit .............................................................................................................................................. 19
Components ............................................................................................................................................................................... 20
Remote Panel Option ............................................................................................................................................................ 21
Troubleshooting.......................................................................................................................................................................... 22
Airflow Troubleshooting Chart ............................................................................................................................................... 22
Burner Troubleshooting Chart ............................................................................................................................................... 23
Remote Panel Troubleshooting Chart ................................................................................................................................... 24
Troubleshooting Flowcharts .................................................................................................................................................. 25
MAINTENANCE .............................................................................................................................................................................. 26
General Maintenance ................................................................................................................................................................. 26
2 weeks after startup .................................................................................................................................................................. 27
Every 3 months .......................................................................................................................................................................... 27
Filter Quantity Chart .............................................................................................................................................................. 27
Yearly ......................................................................................................................................................................................... 27
Burner Orifice Drill Size ........................................................................................................................................................ 27
Start-Up and Maintenance Documentation ................................................................................................................................. 28
Job Information ..................................................................................................................................................................... 28
Heater Information ................................................................................................................................................................ 28
Maintenance Record ............................................................................................................................................................. 28
Factory Service Department .................................................................................................................................................. 28