Energy Tech Laboratories Modular Direct Fired Heaters User Manual
Page 2
TABLE OF CONTENTS
WARRANTY.................................................................................................................................................. 3
INSTALLATION............................................................................................................................................. 4
Mechanical................................................................................................................................................ 4
Site Preparation.................................................................................................................................... 4
Assembly .............................................................................................................................................. 4
Curb and Ductwork............................................................................................................................... 4
Roof Mount Installation......................................................................................................................... 5
Installation with Exhaust Fan................................................................................................................ 5
Direct Fired Module Installation............................................................................................................ 6
Indoor (INLINE) Installation .................................................................................................................. 6
Heat Module Add-On Installation ......................................................................................................... 6
Gas ........................................................................................................................................................... 7
Electrical ................................................................................................................................................... 8
Motorized Intake Damper ..................................................................................................................... 8
Remote Control Panel .......................................................................................................................... 9
Fan to Building Wiring Connection ....................................................................................................... 9
OPERATION ............................................................................................................................................... 10
Start Up................................................................................................................................................... 10
Special Tools Required ...................................................................................................................... 10
Start Up Procedure............................................................................................................................. 10
Pilot Adjustment.................................................................................................................................. 10
Main Burner Adjustment..................................................................................................................... 11
Heater Start Up Summary .................................................................................................................. 12
Final Start Up Procedure.................................................................................................................... 13
Pulley Adjustment............................................................................................................................... 13
Pulley Alignment................................................................................................................................. 13
Proper Belt Tension............................................................................................................................ 13
Pulley Combination Chart................................................................................................................... 14
Sequence of Operation........................................................................................................................... 15
Flame Safety Control.......................................................................................................................... 15
Air Flow Switch ................................................................................................................................... 15
Modulating Gas System ..................................................................................................................... 16
High Temperature Limit...................................................................................................................... 16
Operation Summary ........................................................................................................................... 16
Optional Remote Panel Circuit ........................................................................................................... 17
Components............................................................................................................................................ 18
Remote Panel Option ......................................................................................................................... 19
Troubleshooting ...................................................................................................................................... 20
Airflow Troubleshooting Chart ............................................................................................................ 20
Burner Troubleshooting Chart ............................................................................................................ 21
Remote Panel Troubleshooting Chart................................................................................................ 22
Troubleshooting Flowcharts ............................................................................................................... 23
MAINTENANCE .......................................................................................................................................... 26
General Maintenance ............................................................................................................................. 26
2 weeks after startup .............................................................................................................................. 27
Every 3 months....................................................................................................................................... 27
Filter Quantity Chart ........................................................................................................................... 27
Yearly...................................................................................................................................................... 27
Start-Up and Maintenance Documentation ............................................................................................ 28
Job Information................................................................................................................................... 28
Heater Information.............................................................................................................................. 28
Maintenance Record .......................................................................................................................... 28
Factory Service Department............................................................................................................... 28