Duct Work; Manufactured Home Mod Kit; Plenum Application; Filters - Amana APHM5 15.2 SEER2 M Series Installation Instructions Manual

Ducting
Ducting work should be fabricated by the installing
contractor in accordance with local codes. Industry
manuals may be used as a guide when sizing and
designing the duct system-such as NESCA (National
Environmental Systems Contractors Association, 1501
Wilson., Arlington, Virginia 22209).
The unit should be placed as close as possible to the
space to be air-conditioned allowing clearance dimensions
as indicated. Ducts should run as directly as possible
to supply and return outlets. Use of non-flammable
weatherproof flexible connectors on both supply and return
connections at the unit to reduce noise transmission is
recommended.
It is preferable to install the unit on the roof of the structure
if the registers or diffusers are in the wall or ceiling. A slab
installation is recommended when the registers are low on
the wall or in the floor.
CONNECTING THE RETURN AND SUPPLY FLEXIBLE
DUCT IN MANUFACTURED OR MODULAR HOUSING
APPLICATION.
The return and supply fittings are to be attached at
the unit to a suitable square to round duct converter.
Your distributor has a factory designed square to round
converter transition. The model #'s of these kits are as
follows in the table below. (See Specification Sheets for
Dimension details).
Accessory Description
Downflow Square to Round
Horizontal Square to Round
The SQRPG101, SQRPG102, and SQRPG103 fit up to
the Return and Supply Downflow vents having dimensions:
Return (22 ¾" x 12 ¼") and Supply (22 ¼" x 14 ¾"). The
SQRPGH101, SQRPGH102, and SQRPGH103 fit up to
the Horizontal Return and Supply downflow vents having
dimensions: Medium Chassis (16 ½" x 16 ½") and Large
Chassis (18 ½" x 18 ½"). The Medium Chassis kits
transition to a 16" Diameter and the Large Chassis kits
transition to an 18" Diameter
(equivalent diameter, opening is oval) on the return. The
collars are to be slipped into the openings, and the flanges
bent around the converter. The square to round converter
is attached to the flanges of the square duct openings.
The flexible duct is then clamped on to the collars. Once
the duct is affixed to the unit, seal the collars and flanges
with a proper waterproof sealant. SEE FIGURE 6:
MANUFACTURED HOME MODIFICATION KIT.
Item Number
Medium Chassis Large Chassis
SQRPG101/102 SQRPG103
SQRPGH102 SQRPGH103
Figure 6: Manufactured Home Modification Kit
It is strongly encouraged to use appropriately sized ducts
based upon the CFM for your application (unit's CFM). If
duct sizing through industry manuals or air duct calculators
requires larger ducts than converter openings, run larger
duct size up to unit converter openings and reduce with a
reducer duct fitting or transition right at the unit.

Plenum Application

A suitable plenum or square duct must be constructed. The
duct cross-sectional area should be determined by industry
duct sizing manuals or air duct calculators.
On ductwork exposed to outside air conditions of
temperature and humidity, use an insulation with a good
K factor, and a vapor barrier. Industry practices should be
followed. Balancing dampers are recommended for each
branch duct in the supply system. Ductwork should be
properly supported from the unit.
NOTE: Proper sealing of all ductwork and air
handling compartments is extremely important to
overall unit efficiency.

Filters

Filters are not provided with unit and must be supplied
and externally installed in the return duct system by the
installer. A field-installed filter grille is recommended for
easy and convenient access to the filters for periodic
inspection and cleaning. When installing filters, ensure
the air flow arrows on the filter are pointing toward the
circulator blower. For unit filter size information, see table
below for recommended filter size.
2 TON
UNIT
Min.
Filter (1)20X20X1
Size
7
2 1/2 TON 3 TON 3 1/2 / 4 TON
(1)20X25X1 (1)25X25X1 (2)20X20X1