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