FIGURE 2.15: WIRING DIAGRAM & OPERATION SEQUENCE FOR BOILERS EQUIPPED WITH STANDING PILOT, VENT DAMPER & MCDONNELL- MILLER #67 LOW WATER CUT-OFF (FOR GB250-8 & GB250-9, N.G.)

FIGURE 2.16: WIRING DIAGRAM & OPERATION SEQUENCE FOR BOILERS EQUIPPED WITH INTERMITTENT PILOT, VENT DAMPER & 400 SERIES LWCO

14