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Prior to installation we recommend that the installer verify the product intended application is
applicable to your current installation needs.
This product provides generic forced air electric resistance heater designed for air handler, heat pump, or
blower cabinet outlet duct installation. The relationship of the blower outlet to this insert heater must be
according to the specific mechanical installation or instruction in detail of this manual.
First-time or non-routine user – before attempting installation or setup, suggest studying the last section
of this manual, operational information and terminology definitions.
Basically the minimum airflow through the element rack is 100 CFM per KW (assumes 100°F inlet from
heat pump). Any air volume which passes around or outside of the element rack insert must be
discounted or added to the minimum 100 CFM per KW requirement. This manual provides the necessary
details for duct/plenum deflectors and/or duct heater element rack position in relationship to the blower
wheel to assure correct airflow through the elements.
NOTE: The maximum inlet air temperature is 100°F. For inlet temperatures greater than 100°,
contact the factory for special assistance.
This product is assembled complete with the WarmFlo II controller configured for a total electric
application as defined on the cover page. Various field or installation settings and decisions are required,
see the "Controller Setup" section.
For information, all units are rated at 240 volts AC. When operating at lower source voltage, the output
may be reduced.
Example: 9.6KW unit, assuming normal element tolerances
220 volt source – 8 kW
208 volt source - 7.3 kW
**Installation Notice** – the WarmFlo controller is designed to operate in conjunction with the
complete heating system – heat pump, strip heat, roomstat, WarmFlo sensors, etc. If one of these
components is missing or not initially installed, improper performance of the WarmFlo and the heating
system may be experienced. Suggest electrically this unit and the WarmFlo controller not be installed or
used until all the components of the heating system are in place and functional.
Warranty/Checkout – Attached to this manual is a warranty certification and checkout procedure. This
must be completed and returned for warranty coverage.
Failure to follow the mechanical installation details of this manual may shorten element life and may void
limited warranty provisions.
06/07/2016
INTRODUCTION
1
EI508
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