User Guide

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Installation & Service Manual
Figure 23: Schematic Wiring Diagram, Steam Boilers With or Without Tankless Heater,
McDonnell & Miller PSE-801 Probe LWCO, Beckett AFG and Carlin EZ Burners
McDonnell & Miller PSE-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 25 FOR SCHEMATIC WIRING DIAGRAM OF APPROPRIATE BURNER AND OIL PRIMARY CONTROL OPTION
4 Electrical (continued)