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71RT-PRC001-EN
Field Installed Options
CO
2
Sensing
The CO
2
sensor has the ability to monitor
space occupancy levels within the
building by measuring the parts per
million of CO
2
(Carbon Dioxide) in the air.
As the CO
2
levels increase, the outside air
damper modulates to meet the CO
2
space ventilation requirements.
Digital Display Zone Sensor
The Digital LCD (Liquid Crystal Display)
zone sensor has the look and functionality
of standard zone sensors. This sensor
includes a digital display of set point
adjustment and space temperature in F
(Fahrenheit) or C (Celsius). Includes FAN
and SYSTEM buttons (supports the
service functions of the standard sensor).
E-squared memory stores last
programmed set points. Requires 24 VAC
(Volts AC). This sensor should be utilized
with ReliaTel™ controls.
Dual Thermistor Remote Zone Sensor
This sensor will allow the customer to
reduce the total number of remote
sensors to obtain space temperature
averaging. This sensor should be utilized
with ReliaTel controls.
High Static Drive
The high static drive option shall allow the
standard motor on the 12½ and 20 ton
units to operate with improved external
static capabilities.
Manual Outside Air Damper
The rain hood and screen shall provide
up to 25 percent outside air.
Motorized Outside Air Dampers
Manually set outdoor air dampers shall
provide up to 50 percent outside air. Once
set, outdoor air dampers shall open to set
position when indoor fan starts. The
damper shall close to the full closed
position when indoor fan shuts down.
Powered Exhaust
The powered exhaust shall provide
exhaust of return air, when using an
economizer, to maintain better building
pressurization.
Roof Curb - Downflow
The roof curb shall be designed to mate
with the downflow unit and provide
support and a water tight installation
when installed properly. The roof curb
design shall allow field-fabricated
rectangular supply/return ductwork to be
connected directly to the curb. Curb
design shall comply with NRCA
requirements. Curb shall be shipped
knocked down for field assembly and
shall include wood nailer strips.
Economizer - Horizontal
The horizontal economizer shall contain
the same features as the downflow
economizer with the exception of
barometric relief.
Remote Potentiometer
The minimum position setting of the
economizer shall be adjusted with this
accessory.
Ventilation Override Accessory
With the Ventilation Override Accessory
installed, the unit can be set to transition
up to 3 different pre-programmed
sequences for Smoke Purge,
Pressurization, and Exhaust. The
transition occurs when a binary input on
the RTOM is closed (shorted). This would
typically be a hard wired relay output
from a smoke detector or fire control
panel.
Zone Sensors
This option shall be provided to interface
with the Micro equipped Voyagers and
shall be available in either manual,
automatic, programmable with night
setback, with system malfunction lights or
remote sensor options.
Mechanical
Specifications