Ductwork; Electric Heater - Lennox LIAH024-200U432 Owner's Manual

Air Handlers

4.5 Ductwork

This air handler is designed for a complete supply and return ductwork system.
Do not operate the unit without all ductwork completed.
Do not operate this product without all ductwork attached.
Inadequate ductwork that restricts airflow can result in improper performance and
compressor or heater failure. ductwork is to be constructed in a manner that limits
restrictions and maintains suitable air velocity. ductwork is to be sealed to the unit in a
manner that will prevent leakage.
Return ductwork: Do not terminate the return ductwork in an area that can
introduce toxic, or objectionable fumes/odors into the ductwork. The return ductwork is
to be introduced into the air handler bottom (up flow configuration).
Return Air Filters: Each installation must include a return air filter. This filtering may
be performed at the air handler or externally such as a return air filter grille.

4.6 Electric Heater

The air handlers listed in this manual do not have factory installed electric heat.
Electric heat is available as an accessory. Please refer to installation instructions
provided with heater kit for the correct installation procedure.
instructions provided with the heater kit for the correct installation procedure.
and the supply power should be identical. This air handler does not have factory
installed electric heater. Electric heater is available as an accessory. If installing this
option, the only heater kits that can be used are the series as indicated below.
Refer to the "installing electric heater" section of this manual and the
The electrical characteristics of the air handler, the electric heater kit,
12