Install Instructions

27
Figure 22: Schematic Wiring Diagram, Steam Boilers With or Without Tankless Heater,
McDonnell & Miller PS-801 Probe LWCO, Beckett AFG Burner
IV: ELECTRICAL (continued)
McDonnell & Miller PS-801
Terminals May Be Lettered or
Numbered as Follows:
Wire
Color
Numbered
Terminals
Lettered
Terminals
RD 5 B
BK 1 H
WH 2 N
Jumper 1-3 H-C
REFER TO FIGURE 24 FOR SCHEMATIC WIRING DIAGRAM OF APPROPRIATE BURNER AND OIL PRIMARY CONTROL OPTION