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
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