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Vapor Power International LLC
551 S County Line Road, Franklin Park, Il 60115
Phone: 630-694-5500 Fax: 630-694-2230
4.3.3
Boiler Start-Up
Fill boiler to normal water level and energize the main power supply by
closing the customer’s branch circuit power switch.
Repeat steps 4.3.1 A and B to “start” the boiler.
Using the enable switches, gradually switch on the circuits.
Once pressure is achieved in the boiler, gradually open the steam outlet valve
to establish a load on the boiler.
Individually check each element circuit to assure that each leg is drawing its
rated current.
NOTE: SOME POWER FUSES MAY BLOW AT STARTING DUE TO WATER OR OTHER
CONTAMINATION ON THE ELEMENT TERMINALS, SINCE THIS CONTAM-
INATION USUALLY “BURNS” FREE, MERELY CHECK THE CIRCUIT FOR A
SHORT AND THEN REPLACE THE FUSE. IF A SHORT EXISTS, HOWEVER,
REPLACE THE DEFECTIVE ELEMENT PER PARGRAPH 5.3.3
4.4
BOILER SHUTDOWN
Switch the control circuit power off. For boilers supplied with step controls,
this will automatically recycle the step controller to no load so that when the
boiler is again switched on, no contactors will be initially energized.
