Wall Case/Sub-Base Installation - GE 5500 Data Manual

Wall Case
A choice of wall cases is available for the Zoneline unit.
RAB71 - This insulated
case is constructed of
heavy gauge galvanized
steel and finished with a
protective baked enamel
finish for protection and
appearance. Design of
the case provides for
support of the chassis and
free draining of any water entering the wall case.
A petroleum microcrystalline wax is applied at critical points
of fabrication to seal against moisture. The dimensions of
the RAB71 wall case are: 42" wide by 16" high by 13 3/4"
deep, the same dimensions as the original wall case for GE
Zoneline units built in 1961. The RAB71 wall case is also
available in depths other than the standard depth of 13 3/4".
Special order steel case are: RAB7116 - 16" deep; RAB7124 -
24" deep; RAB7128 - 28" deep; and RAB7131 - 31" deep. All
of these special order deep wall cases are insulated and have
sheet metal dividers, or splitters, to prevent the recirculation
of condenser discharge air.
RAB77 - This non-
insulated wall case is
molded from fiberglass-
reinforced polyester
compound. This SMC
(Sheet Molded
Compound) wall case
offers outstanding
strength, durability, color retention, water integrity and
corrosion resistance. The dimensions of the RAB77 wall case
are: 42 1/8" wide by 16 1/4" high by 13 7/8" deep.
• Both wall cases are of universal design, accepting all
Zoneline chassis of current design as well as all GE
Zoneline chassis produced since 1961.
• Drain holes are provided in the rear of the wall case to
permit excessive cooling condensate water, heat pump
condensate, or precipitation entering the wall case to drain
freely. A drain kit may be connected to the wall case to
control any water draining from the wall case. See pages
34 - 36 for information on RAD10 Drain Kit.
RAK901L - For installations when the wall case extends into
room, an RAK901L is an insulation kit that can be used with
the RAB77 or any existing non-insulated wall case to
minimize the possibility of condensation forming on the
indoor side of the case during the winter.
Sub-Base
The sub-base is an optional accessory for the Zoneline unit
and is presented with the wall case information since the
decision to use or not to use a sub-base in the installation is a
factor in the location of the wall opening for the unit.
National Electrical Code ® requires that air conditioning units
connected to voltages in excess of 250 volts be "permanently
connected". There are also some installations where units
connected to voltage sources under 250 volts may also need to
be "permanently connected". If you are in doubt about the
requirements for a particular installation being designed,
consult Article 440 of the NEC or the local electrical inspector.
These requirements are designed to protect personal safety
and should be strictly followed. Although NEC is cited here as
a reference, all electrical wiring and installations must
conform to any and all local electrical codes and regulations.
"Permanent Connection" generally means wiring between
the building wiring and the unit must be contained in an
enclosed "chaseway", where access to the wiring connections
is more restrictive than a normal line cord plugged into a
receptacle. NEC requirements may be met by using flexible
or rigid conduit to contain the wiring between the unit and
a junction box that contains the wiring connections. The
conduit is connected to the unit and to the junction box with
connectors to hold the conduit in place. The junction box
RAB71 Wall Case
may be located in the floor or the wall of the structure but
only approved connectors may be used outside the unit or
the junction box. The sub-base is UL
box for permanent connection of a Zoneline unit.
Using a sub-base in an installation requiring permanent
connection provides a convenient, consistent location for
unit wiring to be connected to building wiring. The use of a
sub-base is not required, but the convenience and the
improved aesthetics it offers makes the use of a sub-base a
viable means of permanent connection.
RAK204 - The
RAK204 Series of
sub-bases provides a
variety of designs
that fit the site needs
and are available for
use with Zoneline PTAC/PTHP units. The RAK204U will most
likely be used for support of the wall case and unit.
208/230 volt receptacles can also be mounted in the cover
plate for easy access when direct connect wiring is not
RAB77 Wall Case
required. 265 volt units are to be "Direct Connected" and the
external receptacle (when wiring is not enclosed in a chaseway)
does not meet this requirement. A knockout for a fuseholder
or a disconnect is also provided in the cover plate.
RAK204U - No receptacle or wiring but will accept any field
supplied 15, 20 or 30 amp receptacle and wiring. Chaseway
not included. RAK205CW chaseway must be ordered
separately.
The RAK4002A (2500/3500 Series) or RAK4002B (5500
Series) junction box performs the same function as any of
the other sub-base kits by selecting the correct receptacle
and installing it in the interior mounting plate inside the
RAK204U.
RAK204D20 – 208/230 volt 15/20 amp receptacle.
Receptacle is NEMA6-20R (GE4181-2 or other of same
design) with 18" of #12AWG wires attached to the
receptacle. Chaseway included.
RAK204D30 – 208/230 volt 30 amp receptacle. Receptacle is
NEMA6-30R (large tandem) with 18" of #12AWG wires
attached to the receptacle. Chaseway included.
RAK204E15 – 265 volt 15 amp receptacle. Receptacle is
NEMA7-15R (GE0716-6 or other of same design) with 18" of
#12AWG wires attached to the receptacle. Chaseway included.
RAK204E20 – 265 volt 20 amp receptacle. Receptacle is
NEMA7-20R (GE0720-3 or other of same design) with 18" of
#12AWG wires attached to the receptacle. Chaseway included.
RAK204E30 – 265 volt 30 amp receptacle. Receptacle is
NEMA7-30R (GE0730 or other of same design) with 18" of
#12AWG wires attached to the receptacle. Chaseway included.
® listed as a junction
Typical RAK204D20 sub-base shown
Chaseway
23