Filter
Top Products
89RT-PRC005-EN
Low Ambient Cooling
All microprocessor units shall have
cooling capabilities down to 0°F as
standard. Electromechanical models
have cooling capabilites to 40°F as built,
or to 0°F by adding the optional low
ambient (frostat) control.
Thermal Expansion Valve
All units shall have a short orifice
refrigerate control metering device. For
more exact refrigerant flow, when using
unit in low airflow applications, a Thermal
Expansion Valve option shall be available.
Novar Unit Controls
Optional Novar rooftop unit controls shall
be factory installed and tested. The
Novar electronic thermostat module will
interface to the unit microprocesser and
will control the unit to the desired stage of
cooling or heating.
Novar Return Air Sensor
This option, when used in conjunction
with Novar Controls, will contain a factory
provided and wired zone temperature
sensor located in the return air stream.
CO
2
Sensing
The CO
2
sensor shall have 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. The CO
2
accessory shall be available as field
installed.
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. The ventilation override accessory
shall be available as field installed.
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.
Humidity Sensor
Field installed, wall-mounted humidity
sensor is used to control activation of the
hot gas reheat dehumidification option.
The humidity sensor can be set for
humidity levels between 40% and 60%
relative humidity by adjusting the ReliaTel
Options Module.
Humidity Sensor
Field installed, duct-mounted humidity
sensor is used to control activation of the
hot gas reheat dehumidification option.
The humidity sensor can be set for
humidity levels between 40% and 60%
relative humidity by adjusting the ReliaTel
Options Module.
Mechanical
Specifications