Boyertown Regal Oil Furnace Nrg Max - Manual (Page 19)

19
Conventional System (1) Stage Heat (2) Cool ECM Motor
“O” Terminal to be energized for Cooling Only
Humidistat breaks on high humidity. Jumper “R”-“DH” if not used.
Heat Pump (1) Stage Heat (1) Stage Cool PSC Motor - Furnace Auxiliary Heat