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RT-PRC005-EN
Mechanical
Specifications
Through the Base Electrical with Circuit
Breaker
This option is a thermal magnetic, molded
case, HACR Circuit Breaker with
provisions for through the base electrical
connections. The circuit breaker will be
installed in a water tight enclosure in the
unit with access through a swinging door.
Wiring will be provided from the switch to
the unit high voltage terminal block. The
circuit breaker will provide overcurrent
protection, be sized per NEC and UL
guidelines, and be agency recognized by
UL/CSA.
Through the Base Electrical with
Disconnect Switch
This 3-pole, molded case, disconnect
switch with provisions for through the
base electrical connections are available.
The disconnect switch will be installed in
the unit in a water tight enclosure with
access through a swinging door. Wiring
will be provided from the switch to the
unit high voltage terminal block. The
switch will be UL/CSA agency recognized.
Note: The disconnect switch will be sized
per NEC and UL guidelines but will not be
used in place of unit overcurrent
protection.
Two-Inch Pleated Filters
Two inch pleated media filters shall be
available on all models.
Factory or Field Installed
Options
Clogged Filter/Fan Failure Switch
A dedicated differential pressure switch is
available to achieve active fan failure
indication and/or clogged filter indication.
These indications will be registered with
either a zone sensor with status indication
lights or an Integrated Comfort™ System.
This option is available for
microprocessor controlled units.
Differential Pressure Switches
These sensors allow individual fan failure
and dirty filter indication for
microprocessor controlled units. The fan
failure switch will disable all unit functions
and “flash” the Service LED on the zone
sensor. The dirty filter switch will light the
Service LED on the zone sensor and will
allow continued unit operation.
Discharge Air Sensing
This option provides true discharge air
sensing in heating models. This sensor is
a status indicator readable through
Tracer™ or Tracker™. This option is
available for microprocessor controlled
units.
Economizer
This accessory shall be available with or
without barometric relief. The assembly
includes fully modulating 0-100 percent
motor and dampers, minimum position
setting, preset linkage, wiring harness
with plug, spring return actuator and
fixed dry bulb control. The barometric
relief shall provide a pressure operated
damper that shall be gravity closing and
shall prohibit entrance of outside air
during the equipment “off” cycle.
Optional solid state or differential
enthalpy control shall be available for
either factory or field installation. The
economizer arrives in the shipping
position and shall be moved to the
operating position by the installing
contractor.
Electric Heaters
Electric heat modules shall be available
for installation within basic unit. Electric
heater elements shall be constructed of
heavy-duty nickel chromium elements
internally delta connected for 240 volt,
wye connected for 480 and 600 volt.
Staging shall be achieved through
ReliaTel™. Each heater package shall
have automatically reset high limit
control operating through heating
element contactors. All heaters shall be
individually fused from the factory, where
required, and shall meet all NEC and CEC
requirements when properly installed.
Power assemblies shall provide single-
point connection. Electric heat modules
shall be UL listed or CSA certified.
Frostat
This option is to be utilized as a safety
device. The Frostat opens when
temperatures on the evaporator coil fall
below 10°F. The temperature will need to
rise to 50°F before closing. This option
should be utilized in low airflow or high
outside air applications.
LonTalk
®
Communication Interface
This option shall be provided to allow the
unit to communicate as a Tracer™LCI-R
device or directly with generic LonTalk
Network Building Automation System
Controls.
Oversized Motors
Direct drive oversized motors shall be
available for high static applications.
Reference or Comparative Enthalpy
Reference Enthalpy is used to measure
and communicate outdoor humidity. The
unit receives and uses this information to
provide improved comfort cooling while
using the economizer. Comparative
Enthalpy measures and communicates
humidity for both outdoor and return air
conditions, and return air temperature.
The unit receives and uses this
information to maximize use of
economizer cooling, and to provide
maximum occupant comfort control.
Reference or Comparative Enthalpy
option shall be available when a factory
or field installed Downflow Economizer is
ordered. This option is available on all
downflow models.
Tool-less Hail Guards
Tool-less, hail protection quality coil
guards are available for condenser coil
protection.
Trane Communication Interface
This option shall be provided to interface
ReliaTel™ controlled units with the Trane
Integrated Comfort
TM
systems.