P
REVENTATIVE
M
AINTENANCE
C
HECKLIST
GasTrac Process Air Heater
UGD014/0497
5-2
M
AINTENANCE
Routine maintenance will ensure optimum operation and per-
formance of the GasTrac. We recommend the following main-
tenance schedule and tasks.
●
Weekly, or as often as needed
❒
Clean the GasTrac combustion air filter.
You may need to clean the filter more often than
weekly. Frequency depends on the amount of dust
in your facility’s air.
❒
Clean the GasTrac electrical enclosure filters.
You may need to clean the filters more often than
weekly. Frequency depends on the amount of dust
in your facility’s air.
●
Monthly
❒
Inspect air hoses and hose connections.
Check for damage, kinks or loose hose clamps.
Replace any hoses that show signs of damage or
wear. Reposition and tighten loose hose clamps.
❒
Inspect and test safety controls.
Fuel safety shutoff valves, combustion safeguards
and temperature and pressure switches should be
inspected and tested by trained personnel.
❒
Inspect the burner sight glass.
Clean the sight glass, if needed. Replace the sight
glass if you see cracks or any other defect.
●
Every six months
❒
Inspect the GasTrac metal-ceramic burner.
While the unit is fired, look through the sight glass
at the burner. The burner surface should be glowing
orange with an even flame. Blue flames, flames
projecting from the burner surface, or cracks or
dark spots on the burner surface indicate damage.
You may need to replace the burner.
❒
Inspect piping, wiring and electrical connections.
Check for leaks, corrosion and loose connections.
Replace any component that shows signs of dam-
age or wear. Tighten loose connections.
●
Annually
❒
Replace the spark igniter.
To assure optimum performance, you should
replace the spark igniter once a year.
❒
Clean the ultraviolet flame detector lens.
Use alcohol and a soft cloth.