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036-21630-001-B-0904
Unitary Products Group 13
Air IAQ sensor. Construction mode operation, 365-day
real time clock with 7 day programming plus holiday
scheduling is built-in. Two different modes of demand
ventilation are achieved through the INTELLI-Com-
fort™using CO
2
sensors. It uses an inside CO
2
sensor to
perform Demand Ventilation. It can also use an Outside
CO
2
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, 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 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.
• 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.
• 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 fin-
ished roof. These full perimeter curbs meet the require-
ments of the National Roofing Contractors Association
(NRCA) and are shipped knocked-down for field assem-
bly.