Energy Tech Laboratories New Yorker CL Series - Manual (Page 22)

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Figure 1A: Wiring Diagram, Steam Boilers With or Without Tankless Heater,
McDonnell & Miller PS-801 Probe LWCO, Carlin EZ-HP Burner
Figure 1B: Wiring Diagram, Steam with or without Tankless Heater,
Optional McDonnell & Miller PS-801 Probe LWCO, Riello Burner