9
EXTERIOR LOUVERS
It is of utmost importance to use external louvers that are approved. First, the louver must have adequate free area, second,
the louver must have a low airflow resistance with minimal pressure drops. Finally, the duct/louver must be water-resistant
and have no potential to leak inside the wall assembly.
Several louvers have been tested in our lab to ensure they work well with the HPAC 2.0. If you need advice on which louver to
choose please contact your sales representative. Using a non-approved louver may cause the unit to fail and will void the
warranty. Only used approved louvers.
When installing the louvers
• Make sure that outside there are no obstacles that can block the airflow from the louver. There must be a least 40”
free and clear in front of the louvers.
• Properly follow the manufacturer’s instructions for installation.
• Seal the louver assembly properly outside to ensure that no water will penetrate.
• Seal the sleeve tightly to the wallboard inside the room. If not completely sealed, the powerful fan can suck
insulation from inside the wall into the unit.
• Leave 1/8 of an inch of the pipe/sleeve protruding into the room so that the pipe pushes into the EPDM fabric on
the back of the unit, creating a tight seal from the pipe to the unit.
NOTICE
Make sure to properly install and seal the wall penetrations. Failing to
properly seal can cause damage to unit and water damage to the
home.
NOTICE
Use only the louvers that are approved by Ephoca. Using any grille
assembly other than approved grilles may cause water damage
and/or performance issues and will void the warranty. Leave 1/8 of
an inch of the pipe/sleeve protruding into the room.
NOTICE
Sometimes walls are not level and there can be a gap between the
sleeve and the back of the unit. Check by turning o the lights and
see if there is any light seeping through the back of the unit. If there is,
add insulation tape around the openings to create a tight seal.
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