Figure 7 - Condensate Trap and Unit
PRIMARY TRAP REQUIRED
See figure 5 for recommended
condensate trap.
Standard P-traps are not sufficient.
SECONDARY DRAIN WITH
APPROPRIATE TRAP
REQUIRED
FILTER ACCESS PANEL
(Do not obstruct with
condensate drain line.)
NOTE: If unit is located in or above a living space where damage may result from condensate overflow, a field-supplied
external condensate pan should be installed underneath the entire unit, and a secondary condensate line (with appropriate
trap) should be run from the unit into the pan. Any condensate in this external condensate pan should be drained to a
noticeable place. As an alternative to using an external condensate pan, some localities may allow the use of a separate ¾
in. condensate line (with appropriate trap) to a place where the condensate will be noticeable. The owner of the structure
must be informed that when condensate flows from the secondary drain or external condensate pan, the unit requires
servicing, or water damage will occur.
Install traps in the condensate lines as close to the coil as possible. Make sure that the outlet of each trap is below its
connection to the condensate pan to prevent condensate from overflowing the drain pan. Prime all traps, test for leaks, and
insulate traps if located above a living area.
Condensate drain lines should be pitched downward at a minimum of 1 in. for every 10 ft. of length. Consult local codes for
additional restrictions or precautions.
PROCEDURE 7 AIR FILTER
The air filter should be cleaned or replaced every 30 days or more frequently if severe conditions exist. Always replace the filter
with the same type as originally furnished.
CAUTION: Never operate unit without a filter or with filter access door removed. Damage to blower motor
or coil can result. Failure to follow this CAUTION could result in personal injury or product and property
damage.
IMPORTANT:
Factory authorized filters must be used when locating the filter inside the unit. For those applications where
access to an internal filter is impractical, a field-supplied filter must be installed in the return duct system.
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