16
Series 2000 Vane Axial Heater
17. Press the "PROGRAM TEMPERATURE" but-
ton to change the high limit set point. Press it
again to change the "CYCLE SET POINT". (hi-
lo units only)
18. Decrease the "CYCLE SET POINT TEM
PERATURE" until the heater cycles to low
flame. (hi-lo units only)
16. When the burner ignites the display should read
"HI-FLAME " at the left of the display. Loosen
the nut on the main regulator and turn screw in, to
increase pressure and out to decrease pressure.
The pressure gauges should be set at 10-15 lbs.
for LP units, or 4-6 lbs.. for natural gas units. (use
the charts on the following pages to set pressure)
19. Open or close the low cycle ball valve until
the gas pressure is 3-5 lbs. for LP, or 1-2 lbs.
for natural gas. (hi-lo units only)
20. Increase the cycle set point to return to high
flame. (hi-lo units only)
21. Watch heater run several minutes to make
sure it cycles between hi and lo flame or on
and off properly.
22. Hi-flame pressure should be adjusted so ple-
num reaches cycling temperature easily.
23. Adjust pressure on on/off units so that unit is
on approximately 75% of the time.
OPERATING PROCEDURE
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