10/04/2007
NI802
WarmFlo
®
Electric Furnace
Installation & Operating Instructions
HE-H-**-21 Series
All HE-H-**-21 Electric Furnaces must use an AH chip code. If you have a chip code other than AH, please call
factory for assistance.
Application
Full WarmFlo capability with outdoor sensor. This provides warm air outlet temperature dial selection and supply air
ramp up with the decrease of outdoor temperature. This WarmFlo feature definitely applies to heat pumps, but it is
also the top of the line comfort for straight electric, with air conditioning. The warm air dial suggested setting is 96°
or 100° and the front dial selects the rate of ramp up or temperature increase based upon outdoor. The “C” setting will
provide 114° warm air at 0° or 125° at -20° F outside. The ECM™ blower also ramps up in speed with an increase in
supply temperature or decrease in outdoor temperature. Depending upon setup selection, the moderate heating blower
speed could be as low as 50% of full capacity and full capacity blower is only used below 15° outdoor.
Heat/cool conventional or basic heat pump room thermostat can apply.
DO NOT DESTROY THIS MANUAL. PLEASE READ CAREFULLY AND KEEP IN A SAFE
PLACE FOR FUTURE REFERENCE BY A SERVICE TECHNICIAN.
Drawings:
HD320
NC805
NH803
NH804
NH805
NS802
EC001
