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254599-YTG-C-0807
6 Unitary Products Group
scheduling is built-in. Two different modes of demand
ventilation are achieved through the INTELLI-Comfort™
using CO2 sensors. It uses an inside CO2 sensor to per-
form Demand Ventilation. It can also use an Outside
CO2 sensor to perform Differential Demand Ventilation.
It uses a Patented Comfort Ventilation algorithm to pro-
vide comfortable ventilation air temperature. The pat-
ented economizer-loading algorithm 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 sav-
ings by recovering the building from the Unoccupied Set-
points to the Occupied Setpoints just in time for the
Occupied Time Period to begin. The Simplicity
®
INTELLI-Comfort™ balances space temperature, venti-
lation air temperature, CO2 and humidity for ultimate
comfort.
• Simplicity
®
INTELLI-Comfort™ with MOD LINK CON-
TROL - The York® Simplicity
®
INTELLI-Comfort™ with
Mod Link 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 con-
troller is factory installed. Includes supply air sensor,
return air sensor, dirty filter indicator switch, and air prov-
ing 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.
• COIL GUARD - Customers can purchase a coil guard kit
to protect the condenser coil from damage. This is not a
hail guard kit.
• STAINLESS STEEL HEAT EXCHANGER - For applica-
tions in corrosive environments, this option provides a
full stainless steel heat exchanger assembly.
• STAINLESS STEEL DRAIN PAN - An optional rust-
proof stainless steel drain pan is available to provide
years of trouble-free operation in corrosive environ-
ments.
• 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.
• 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
tool-less operation.
Factory installed Smoke Detectors in the return air,
may be subjected to freezing temperatures during
“off” times due to outside air infiltration. These
smoke detectors have an operational limit of 32°F
to 131°F. Smoke detectors installed in areas that
could be outside those limitations will have to be
moved to prevent having false alarms.