Smith Cast Iron Boilers GB250 SERIES Boiler User Manual


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13
FIGURE 2.13: WIRING DIAGRAM & OPERATION
SEQUENCE FOR BOILERS EQUIPPED WITH
INTERMITTENT PILOT, VENT DAMPER &
MCDONNELL-MILLER #67 LOW WATER CUT-OFF
FIGURE 2.14: WIRING DIAGRAM & OPERATION
SEQUENCE FOR BOILERS EQUIPPED WITH
STANDING PILOT, VENT DAMPER & MCDONNELL-
MILLER #67 LOW WATER CUT-OFF (EXCEPT FOR
GB250-8 & GB250-9, N.G.)
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