GE RAG61 Installationsanweisungen

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Sub-Base (Cont.)
Chaseway RAK205CW is included with RAK204D20,
RAK204D30, RAK204E15, RAK204E20 and the RAK204E30.
If the chaseway is needed when using the RAK204U, it must
be ordered separately as RAK205CW.
There are separate internal compartments to permit
separation of low voltage (Class 2) connections from line
voltage connections as required by NEC. Conduit containing
building wiring enters the sub-base through knockouts
located in the rear or bottom of the sub-base  and is not
accessible when the wall case is installed.
The sub-base attaches to the RAB71 wall case with  two clips
(field assembled) that are screwed into pre-drilled holes in
the bottom front flange of the wall case. It attaches to the
RAB77 wall case with clips that fit over molded ribs without
requiring the use of screws into the wall case. See page 31 for
illustration. Since the sub-base extends under the wall case,
clearance from the inner edge of the wall case to the
finished wall must be 2-3/8" or greater. The sub-base has 4
leveling legs and adjustable side channels to enable the area
under the wall case to be enclosed. Clearance from the
bottom edge of the wall case to the finished floor must be
between 3" and 5".
The sub-base may be used as support for the chassis and wall
case in installations where the wall is of insufficient thickness
to provide secure mounting of the wall case.
Wall Case Installation Data
General
Generally, Zonelines are installed 3" to 5" above the floor
(flush to finished floor installation is possible) as near to the
center of the room as possible; underneath a window or a
glass panel is typical. Normal installation of the wall case
allows installation flexibility; from flush with the finished
interior wall to a minimum of 1/4" of the wall case
extending beyond the finished exterior of the building.
Special consideration must be given to installations where
the wall case does not extend a minimum of 1/4" beyond
the finished exterior wall. See pages 28 and 29 for
information on this type of installation.  The unit may be
installed high in the wall and these installations usually
require a remote thermostat and are discussed on page 18,
19, 27 and 42.
Regardless of the installation, there are several things to
consider when selecting a location for installing the unit.
For instance, drapery location could interfere with air
discharge, and placement of furniture may have an impact
on the performance of the unit.  The following information
is intended to minimize installation problems and assure
you of trouble-free installation.
Refer to page 24 and 25 for required wall opening
dimensions. Minimum recommended interior and exterior
case projection for standard wall thicknesses are shown in
the drawings in this manual. The case may be installed flush
with the finished indoor wall. Special attention must be paid
to room-side case projection when the unit is installed in a
ducted application as shown on page 37, or with a sub base
as shown on page 25.
In walls thicker than 13 1/2" for line cord connected units
and 11 1/8" for sub-base installations, it may be necessary to
install a field fabricated case extension. If you are unable to
locate a local source for case extensions please contact your
salesperson for a possible supplier. Such extension must be
carefully flashed and sealed both to the wall case and to the
wall to insure water integrity. This is necessary to insure that
any water entering the wall case, either from operation of
the unit or from other sources, such as rain storms or from
washing the exterior of the building, will drain from the case
without the possibility of capillary action drawing the water
into either the room or the wall cavity.  In an installation
where the case is recessed less than 3"  from the outside
surface, flashing and sealing may be all the modificaton
necessary. In such an installation, the sides and top of the
wall opening must be waterproof to prevent moisture from
seeping into and damaging the walls. See Pages 28 and 29
for suggested detail.
When the outdoor grille or louver section is mounted to the
building face, causing a space between the outdoor coil and
the louver section, air splitters, aligned with the ends of the
outdoor coil, must be installed between the outdoor coil
inlet and outlet air streams. See page 41 for requirements for
custom louver sections.
For new construction, early planning with the architect is
necessary. Unit location, electrical connection locations, and
wall openings of the proper dimensions are essential to
avoid the necessity of rework, fillers, framing, moving
electrical outlets, and other expensive modifications.
For existing construction it is important that carpentry,
masonry and electrical work be performed by competent,
qualified personnel. Since installations in existing
construction may involve removal of building material from
the structure, locating the wall case must be done correctly.
Window, Curtain and Panel Wall Construction
With this type of construction, provision for support of the
unit, other than by the wall itself, is often required. Such
support may be in the form of wood or metallic material of
the proper thickness to maintain a level case. This
additional support should be located both near the wall and
at the front of the wall case. Sub-base (RAK204U Series)
with four leveling legs provides an excellent support for the
unit in this type of installation. See page 26 for details of this
type of installation.
In existing construction, common practice is to remove a
pane of glass, metal, wood, or other construction material
and build  a frame around the wall case. Similar filler panel
material may be installed around the case for appearance
and weather seal.
Masonry Wall Construction
The wall case should be installed during construction and
lintels should be used to support the blocks above the wall
case. The wall case will not support the concrete block. The
installation instructions show how the wall case must be
secured to the masonry and caulked. Do not remove the
cardboard stiffener supplied with the wall case until ready
The wall case should be level from side to side and front
to back. The condensate disposal system in the unit is
designed to dissipate the condensate water generated
during cooling operation in accordance with ARI
standards and actually uses this water to increase the
efficiency of the unit. A level unit will also insure proper
performance of the Internal Condensate Removal (ICR)
system optional on heat pump units.