B&C Technologies IM Series Industrial Ironer - Manual (Page 80)

35. Low Pressure Switch - verify operation of the low gas pressure switch by recording its set-
ting in the log sheet and then increasing the setting dial to a pressure above the regulator
setting while the burner is operating. When the switch trips the low gas pressure light on the
front of the ironer should light and the burner should shut down. Restore the switch to its
original setting and press the reset button on the switch body. The low gas pressure lamp on
the front of the ironer should turn off and burner operation should resume.
36. High Pressure Switch - verify operation of the high gas pressure switch by recording its
setting in the log sheet and then lowering the setting dial to a pressure below the regulator
setting while the burner is operating. When the switch trips the burner should shut down.
Restore the switch to its original setting and press the reset button on the switch body, burner
operation should resume.
37. Blower Pressure Switch - The blower pressure switch on the burner body should be set
according to the procedure in the burner manual at start-up. Record the setting in the log
sheet.
38. LFL Fault - While the burner is energized press the fault window in on the Siemen’s LFL
combustion control and verify that the LFL’s orange fault lamp lights up and stays on. Press
the window again to extinguish the fault lamp and reset the control. If any abnormal opera-
tion is observed replace the LFL.
39. Combustion Analysis - it is prudent and required in many locations that a qualified tech-
nician perform a combustion analysis on the burner annually to verify safe operation. A
combustion analysis must also be performed at start-up and the results recorded in B&C’s
”IM Family Burner Startup Report” worksheet shown in Table 5.9. Initial the log sheet if a
proper combustion analysis has been performed.
40. Primary Gas Valve Tightness - This test should be performed by a trained technician fol-
lowing prudent and required safety measures. This test verifies that the gas valve is sealing
properly. When the test is completed record the result in the sheet.
41. Secondary Gas Valve Tightness - This test should be performed by a trained technician fol-
lowing prudent and required safety measures. This test verifies that the gas valve is sealing
properly. When the test is completed record the result in the sheet.
42. Gas Plumbing Leak Check - using a rich soap solution or a gas leak test solution, check all
joints in the main and pilot gas lines for leaks. Also check the gas gauge line to the front of
the machine. Correct any leaks found.
43. Pilot Regulator Inspection - inspect the pilot regulator for body cracks and diaphragm leaks.
Inspect the regulator vent line and make sure that it is not clogged and is free flowing. If a
main regulator is installed on the machine perform the same inspection on it.
44. Lift cylinders - operate the ironer lift cylinders. Make sure they all operate smoothly and
evenly with no jerking or sticking. When the rolls are up remove the top air line from each
cylinder and check for abnormal air leakage indicating that the lift cylinder piston seals are
damaged.
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