Field-Installed Accessories - York DJ 180 Technical Manual

261660-YTG-C-0707
uses an inside CO sensor to perform Demand Ventila-
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tion. It can also use an Outside CO
ferential Demand Ventilation. It uses a Patented Comfort
Ventilation algorithm to provide comfortable ventilation air
temperature. The patented economizer-loading algorithm
will protect the equipment when harsh operating condi-
tions 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 and humidity for ultimate comfort.
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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.
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 operation 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.
Unitary Products Group
sensor to perform Dif-
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• 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.
• PHASE MONITORS - Designed to prevent unit damage.
The phase monitor will shut the unit down in an out-of-
phase condition.
• HIGH STATIC DRIVE - Includes a belt and blower pulley
upgrade to enhance blower performance.
• 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/"TOOL FREE" BLOWER AND
ACCESS PANELS (not hinged) - This option allows for
easy access and maintenance.
NOTE:Knobs are shipped separately within the unit to
prevent shipping damage. These must be field
installed for tool free operation.
• HINGED/"TOOL FREE" BLOWER, BLOWER MOTOR,
FILTER AND ELECTRIC ACCESS PANELS - This
option allows for complete hinged and tool free access to
the unit's blower, blower motor, filters and electrical panel
sections.

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.
• ROOF CURBS - Fourteen-inch high roof curbs provide a
water-tight seal between the unit and the finished roof.
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