Icp PAB075N2HB Installation Instructions Manual

Download Installation instructions manual of ICP PAB036N1HA Air Conditioner for Free or View it Online on All-Guides.com. This version of ICP PAB036N1HA Manual compatible with such list of devices, as: PAB048N1HC, PAB060N, PAB075N2HB, PAB090N2LA, PAMC60HC

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I Single Package Air Conditioners
5. Air Distribution System
For airflow data (blower performance data, blower speed
tap settings, filter sizes, etc.) see the Technical Support
Manual.
Ductwork
NOTE: The total heat gain from the structure as expressed
in total Btu/hr MUST be calculated by manufacturer's
method or in accordance with "A.S.H.R.A.E. Guide" or
"Manual J - Load Calculations" published by the Air Condi-
tioning Contractors of America or in Canada "H. R.A.I. Resi-
dential Heating and Cooling Load Calculation Manual."
The total heat gain calculated should be equal to or less
than the cooling capacity. Output based on D.O.E. test pro-
cedures, steady state efficiency times input.
Ductwork, supply registers, and return air grilles MUST be
designed and sized to handle the unit's cooling air volume
requirements. If the unit is connected to an existing system,
the ductwork MUST be checked to make sure it is ade-
quate. Extra runs or larger duct sizes may have to be
installed.
Maximum recommended velocity in trunk ducts is 1000
feet per minute (5.08m/s). Velocity in branches should not
exceed 800 feet per minute (4.06m/s). Refer to the Techni-
cal Support Manual for unit air volume requirements and
system sizing recommendations.
NOTE: Ductwork sizing affects temperature rise and cool-
ing temperature differential. Be sure to properly size duct-
work to the capacity and airflow characteristics of your unit.
Failure to do so can affect limit controls, compressors, mo-
tors, and other components and will lead to premature fail-
ure of components. This will also adversely affect day to
day unit performance.
Refer to unit rating plate for proper Electric Heat Accessory
sizing and see the Temperature Rise Check section in the
Electric Heat Accessory Installation Instructions.
Installation Instructions
Ductwork Insulation
It is recommended that ductwork installed outdoors have a
minimum of 2" (51mm) of fiberglass insulation and be cov-
ered by a weatherproof vapor barrier that is protected
against damage. Caulking and flashings, or other means
adequate to provide a permanent weather seal, must be
used.
It is recommended that ductwork installed in attics or other
areas exposed to outdoor temperatures be installed with a
minimum of 2" (51mm) fiberglass insulation and have an
indoor type vapor barrier.
Ductwork Connections
The use of flexible, non-combustible connectors be-
tween main trunk ducts and supply and return air plenums
is recommended to minimize vibration transmission.
NOTE: Connect supply and return air plenums to unit in a
manner that will allowthe top of the unit to be removed with-
out removing plenums. Plenums MUST be individually
sealed to unit casing. Ducts MUST be terminated inside
structure.
Filters
All return air MUST pass through a filter before entering the
unit. An electronic air cleaner, optional filter racks or other
accessible filter arrangements MUST be installed in the re-
turn air ductwork. Minimum recommended filter areas are
listed in the Technical Support Manual and are based on a
velocity of 300 ft/min (1.2m/s) for disposable filters and 500
ft/min (2.54m/s) for washable high velocity filters.
CAUTION
Do NOT operate the unit without all filters in place.