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22
Wall Case
A choice of wall cases is available for Zoneline
®
units.
RAB71A — This insulated case is constructed of heavy-
gauge galvanized steel and finished with a 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 RAB71A 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
RAB71A wall case is also available in depths other than the
standard depth. It is available on special order as:
RAB7116
– 16" deep; RAB7124 – 24" deep; RAB7128 – 28" deep; and
RAB7131 – 31" deep. All 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 page
35 for information on
RAD10 Drain Kit.
RAK901L — For installations where the wall case extends into
room, 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 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, 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 to 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 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
®
listed as a
junction 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.
RAK204U — The RAK204U 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.
The RAK204U is the same physically as the other sub-bases
except there is no receptacle installed. Receptacles and
wiring can be field installed and, by using the RAK205CW
chaseway and the RAK4002A junction box perform 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.
208/230-volt receptacles can also be mounted in the cover
plate for easy access when direct connect wiring is not
required. 265-volt units are to be “Permanently (or 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, no wiring; will accept any
15-, 20-, 30-amp receptacle and wiring. No chaseway is
included. RAK205CW chaseway must be ordered separately.
The 230/208-volt sub-bases below include a short,
sub-base power connection kit. Since sub-base connected
units are not considered to be line-cord connected, a
Leakage Current Detection and Interruption or Arc Fault
Current Interrupter device is not necessary.
The junction box (RAK4002A for 4100 and 6100 Series
units) that mounts on the chassis of 230/208-volt sub-base
connected units must be purchased separately.
RAK204D15P 208/230-volt 15-amp receptacle. Receptacle
is NEMA6-20R with 18" of #12AWG wires attached to
the receptacle. Short power connection kit included.
Chaseway included.
RAK204D20P 208/230-volt 20-amp receptacle. Receptacle
is NEMA6-20R with 18" of #12AWG wires attached to
the receptacle. Short power connection kit included.
Chaseway included.
Содержание 6100 Series
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