Variable Speed Blower Wiring Diagram - 3100/4100 Series

Two Stage Heat Pump Application

Thermostat Stage	Thermostat Output	Heat Pump Stage	% of CFM Selected	Heat Call Status on Digital Display *	Discharge Air Temperature Target
1	Y1/G	1	50% or 70%**	HC1	L048
2	Y1/Y2/G	2	100%	HC1	L048
3	AUX/Y1/Y2/G	2	100%	HC3	L049
Fan	G	0	600 CFM	HCF	N/A
Cool 1	Y1/G/O	1	50% or 70%**	COOL	N/A
Cool 2	Y1/Y2/G/O	2	100%	COOL	N/A
Emergency	H/E	0	100%	HC3	L049

* If Multiple inputs are active, system will display highest Heat Call values.

** Systems built before 1/1/2011 are configured for 50% airflow in Stage 1. For more information, refer to the instructions.