York CSA DH 036 - Manual (Page 6)

254597-YTG-B-0507
6 Unitary Products Group
installed dirty filter indicator switch, an air-proving switch,
an Outside Air Humidity sensor, a Return Air Humidity
sensor, an Inside IAQ sensor, and an Outside 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-Comfort™ using CO
2
sen-
sors. It uses an inside CO
2
sensor to perform Demand
Ventilation. It can also use an Outside CO
2
sensor to per-
form Differential Demand Ventilation. It uses a Patented
Comfort Ventilation algorithm to provide comfortable ven-
tilation air temperature. The patented 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 sen-
sors and the on-board connection for hot gas re-heat sys-
tem. It uses the INTELLI-Start™ algorithm to maximize
energy savings by recovering the building from the Unoc-
cupied Setpoints to the Occupied Setpoints just in time for
the Occupied Time Period to begin. The Simplicity
®
INTELLI-Comfort™ balances space temperature, ventila-
tion air temperature, CO
2
and humidity for ultimate com-
fort.
• 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.