Gree GA Series Product Data page 17

FIELD- -INSTALLED ACCESSORIES (CONT.)
APPLICATION CONSIDERATIONS
Insulated Metal Wall Sleeves Installation instructions are shipped with all PTAC
units. It is important that air conditioning systems be
Part No.: SLEEVE- -STEEL- -1PK
properly sized and installed for each application in
Part No.: SLEEVE- -EXT18- -1PK
order to achieve the desired temperature and humidity
Part No.: SLEEVE- -EXT24- -1PK
levels within the space to be conditioned. It is
Part No.: SLEEVE- -EXT26- -1PK
strongly recommended that a professional engineer
Part No.: SLEEVE- -EXT28- -1PK
match the PTAC units with the building structure and
Gree's metal wall sleeves are available in a variety
climate.
of sizes for most applications and difficult
The following application considerations are all
installations. Choose from 14- -3/4 in., 18 in., 24 in.,
important in choosing the proper PTAC system for
26 in., or 28 in. (375 mm, 457mm, 610 mm, 660 mm,
the building structure.
and 711 mm) standard depth sizes . All metal wall
Undersizing sleeves come with factory- -installed insulation,
designed to minimize heat loss, reduce outdoor noise
If a PTAC unit is undersized (cooling capacity is less
transmissions into the room and prevent sleeve
than required load for an application), the unit
sweating. In addition, the metal wall sleeve provides
will not be able to cool the space down to the desired
a flammability rating higher than UL94- -5V.
temperature during very hot days. The result could be
warm and humid or warm and dry conditioned space.
Wall Sleeve Molding Kit
Oversizing
Part No.: SLEEVE–MOLDING
For a superior look and to hide any construction
If a PTAC unit is oversized (cooling capacity is
imperfections, use Gree's wall sleeve molding kit to
greater than required load for the specific application),
trim the wall sleeve to the wall. The molding kit is a
the unit will cool the space down to the desired
perfect solution and can be used with any Gree wall
desired temperature too quickly.
sleeve (matches wall sleeve color).
The unit will cycle on and off, however,
dehumidification only takes place when the unit is
operating. The result of this type of application in a
hot and/or humid climate would be a cool, yet
excessively humid, space.
Air Infiltration
Friedrich (and ZoneAire) Retrofit Wall Sleeve
Excessive air infiltration can intensify problems
Adapter
associated with undersizing or oversizing a PTAC
unit. This can be the cause of insufficient cooling,
Part No.: FR- -SLEEVE- -EXT
dehumidification, or heating. Sources of air
The Friedrich (and ZoneAire) wall sleeve adapter is
infiltration include vents, gaps around windows and
constructed of metal and is designed to increase the
doors, and improperly sealed floors, ceilings or wall
depth of an existing Friedrich T-series or ZoneAire wall
joints.
sleeve to accommodate all industry standard PTAC
units.
Condensate Removal
(1067)
Gree's GA series has a new condensate (water)
disposal system. The outdoor fan prop has a built in
slinger ring which draws condensate water through a
suction port built into the outdoor coil shroud. The
water passes though the suction port and is sprayed
on the warm outdoor coil for evaporation. Thus
providing better disposal of excess condensate and
improving unit operating efficiency.
Amounts in ( ) = mm
It is normal and desirable to have some condensate
Standard and Extended Metal Wall Sleeve
water in the ebase pan to boost operating efficiency.
NOTE: This unit will not always evaporate 100%
of the unit generated condensate and blown in
rain water. If it is necessary to control 100% of
the condensate, the Drain Kit (Part No.: DRAIN-
KIT-4PK) and a building condensate drain
system is recommended.
1/2 IN.
(12.7 mm)
Wall Sleeve Molding Kit
16 IN.
(406.4 mm)
3 IN.
(76.2 mm)
Friedrich Wall Sleeve Adapter Kit
17
5
42 in
16 in
(406)
Available in:
14-3/4 in. (375),
18 in. (457),
24 in. (610),
26 in. (660),
28 in. (711)
A07381
1 IN.
(25.4 mm)
A08395
42 IN.
(1067 mm)
A08396