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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
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
Summary of Contents for Modular Direct Fired Heaters
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