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VRF DC Air Handler
4.4 Condensate Removal
(1) It is not allowed to connect the condensate drain pipe into waste pipe or other
pipelines which are likely to produce corrosive or peculiar smell to prevent the smell
from entering indoors or corrupt the unit.
(2) It is not allowed to connect the condensate drain pipe into rain pipe to prevent rain
water from pouring in and cause property loss or personal injury.
(3) Condensate drain pipe should be connected into special drain system for air
conditioner.
(4) The drain pan has primary and secondary drain connection (Figure 4.4). 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" style trap that is located closely to the evaporator coil. Do not
over-tighten the drain connection(s) in order to prevent possible damage to the
evaporator drain pan. See Fig 4.4 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.
WARNING: 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 (upflow 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.
Fig 4.4
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