Air Handlers
(2) Do not connect the condensate drain pipe to any rain drainage pipe to prevent
rain water
from backing up and causing property loss or personal injury.
(3) Condensate drain pipe should be connected into dedicated drain system for
the air conditioner.
(4) The drain pan has primary and secondary drain connections. Condensate
removal is performed by attaching a
3/4” PVC pipe to the evaporator coil pan
and terminated in accordance with local or state Plumbing/HVAC codes. The
installation must include a “P” styl
e trap that is located close to the
evaporator coil. Do not over-tighten the drain connection to prevent possible
damage to the evaporator drain pan. See the following figure for details of a
typical condensate line “P” trap.
4.5 Ductwork
This air handler is designed for a complete supply and return ductwork system.
Do not operate the unit without all ductwork attached and completed.
Inadequate ductwork restricts airflow and 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 to
prevent air leakage and infiltration.
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 filter may
be installed at the air handler or externally such as a return air filter grille.
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