255027-YTG-B-0507
6
Unitary Products Group
day programming plus holiday scheduling is built-in. Two
different modes of demand ventilation are achieved
through the INTELLI-Comfort™using CO
2
sensors. It
uses an inside CO
2
sensor to perform Demand Ventila-
tion. It can also use an Outside CO
2
sensor to perform
Differential Demand Ventilation. It uses a Patented Com-
fort Ventilation algorithm to provide comfortable ventilation
air temperature. The patented economizer-loading algo-
rithm will protect the equipment when harsh operating
conditions exist. Humidity in the occupied space or return
duct can be monitored and controlled via humidity sensors
and the on-board connection for hot gas re-heat system.
It uses the INTELLI-Start™ algorithm to maximize energy
savings by recovering the building from the Unoccupied
Setpoints to the Occupied Setpoints just in time for the
Occupied Time Period to begin. The
Simplicity
®
INTELLI-
Comfort™ balances space temperature, ventilation air
temperature, CO
2
and humidity for ultimate comfort.
•
Simplicity
®
INTELLI-Comfort™ with ModLINC CON-
TROL -
The York®
Simplicity
®
INTELLI-Comfort™ with
ModLINC control is factory installed. It includes all the
features of the INTELLI-Comfort™ control with an addi-
tional control to translate communications from MOD-
BUS to the BACnet MSTP protocol.
•
Novar® BAS CONTROL -
The Novar® ETC-3 building
automation system controller is factory installed.
Includes supply air sensor, return air sensor, dirty filter
indicator switch, and air proving switch.
•
JOHNSON CONTROLS BAS CONTROL -
The Johnson
Control YK-UNT-1126 building automation system control-
ler is factory installed. Includes supply air sensor, return air
sensor, dirty filter indicator switch, and air proving switch.
•
CPC BAS CONTROL -
The Computer Process Controls
Model 810-3060 ARTC Advanced Rooftop building auto-
mation system controller is factory installed. Includes
supply air sensor, return air sensor, dirty filter indicator
switch and air proving switch.
•
HONEYWELL BAS CONTROL -
The Honeywell
W7750C building automation system controller is factory
installed. Includes air supply sensor, return air sensor,
dirty filter indicator switch, and air proving switch.
•
SMOKE DETECTORS
- (supply air & return air) The
smoke detectors stop operation of the unit by interrupting
power to the control board if smoke is detected within the
air compartment.
•
STAINLESS STEEL DRAIN PAN -
An optional rust-proof
stainless steel drain pan is available to provide years of
trouble-free operation in corrosive environments.
•
BOTTOM DRAIN CONNECTION -
An optional bottom
drain connection is available for inside the curb connec-
tions for applications in cold environments to reduce
freezing drain lines.
•
COIL GUARD
- Customers can purchase a coil guard kit
to protect the condenser coil from damage. This is not a
hail guard kit.
•
PHASE MONITORS
- Designed to prevent unit damage.
The phase monitor will shut the unit down in an out-of-
phase condition.
•
DIRTY FILTER SWITCH
- This kit includes a differential
pressure switch that energizes the fault light on the unit
thermostat, indicating that there is an abnormally high
pressure drop across the filters. Factory installed option
or field installed accessory.
•
HINGED FILTER DOOR/“TOOLLESS” BLOWER AND
ACCESS PANELS
(not hinged) - This option allows for
easy access and maintenance.
NOTE:
Knobs are shipped inside the unit to prevent ship-
ping damage. These must be field installed for
toolless operation.
FIELD-INSTALLED ACCESSORIES
•
SINGLE INPUT ELECTRONIC ENTHALPY ECONO-
MIZERS
- Includes a slide-in / plug-in damper assembly
with fully modulating spring-return motor actuator capa-
ble of introducing up to 100% outdoor air with nominal
1% leakage type dampers.
The enthalpy system contains one sensor that monitors
the outdoor air and determines when the air is cool
enough and dry enough to provide free cooling.
The rainhood is painted to match the basic unit and must
be field-assembled before installing.
•
MOTORIZED OUTDOOR AIR INTAKE DAMPER
-
Includes a slide-in / plug-in damper assembly with a 2-
position, spring return motor actuator which opens to
some pre-set position whenever the supply air blower is
operating and will drive fully closed when the blower unit
shuts down.
The rain hood is painted to match the basic unit and
must be field assembled before installing.
•
ELECTRIC HEATERS
wired for single point power sup-
ply. These nickel chromium heater elements are pro-
vided with limit and automatic reset capability to prevent
operation at excessive temperatures.
•
ROOF CURBS
- Eight and fourteen-inch high roof curbs
provide a water-tight seal between the unit and the finished
roof. These full perimeter curbs meet the requirements of
the National Roofing Contractors Association (NRCA) and
are shipped knocked-down for field assembly.
Factory installed Smoke Detectors in the Return
Air, may be subjected to freezing temperatures
during "off" times due to Out Side Air infiltration.
These Smoke Detectors have an operational limit
of 32°F to 131°F. Smoke Detectors installed in
areas that could be out side those limitations will
have to be moved to prevent having false alarms.
