York ZJ Series, Technical Manual

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251933-YTG-B-0806
Unitary Products Group 7
• Simplicity
®
INTELLI-Comfort™ with ModLINC
Control - The York®
Simplicity
®
INTELLI-Comfort™ with
ModLINC control is factory installed. It includes all the
features of the INTELLI-Comfort™ control with an
additional control to translate communications from
MODBUS to the BACnet MSTP protocol.
• Novar® BAS Control - The Novar® ETC-3 building
automation system controller is factory installed. Incudes
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 controller 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
automation 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.
Field Installed Accessories
• Single Input Electronic Enthalpy Economizers -
Includes a slide-in / plug-in damper assembly with fully
modulating spring-return motor actuator capable 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 rain hood 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 supply.
These nickel chromium heater elements are provided 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.
Roof curbs are designed to fit inside the base rails of the
unit and include both a wood nailing strip and duct hanger
supports.
• High Altitude Natural Gas - Burner orifices and pilot
orifices are provided for proper furnace operation at
altitudes up to 6,000 feet.
• Propane - Burner orifices, pilot orifices and gas valve
parts are provided to convert a natural gas furnace to
propane.
• High Altitude Propane - Burner orifices and pilot orifices
are provided for proper furnace operation at altitudes up
to 6,000 feet. This accessory supplements the basic
propane conversion kit.
• Low Nox Kit - Required to reduce the emission of
nitrogen oxides below 40 nano grams per joule.
• Power Exhaust - Our single input economizer options are
available with power exhaust. Whenever the outdoor air
intake dampers are opened for free cooling, the exhaust
fan will be energized to prevent the conditioned space from
being over-pressurized during economizer operation.
The power exhaust option can only be used on bottom
duct configurations.
• Barometric Relief Damper - This damper accessory can
be used to relieve internal building air pressure on units
with an economizer without power exhaust. This
accessory includes a rain hood, a bird screen and a fully
assembled damper. With bottom duct connections, the
damper should be mounted over the opening in the return
air panel. With horizontal ductwork, the accessory should
be mounted on the return air duct.
• Enthalpy Accessory Control Kit - This kit contains the
required components to convert a single enthalpy
economizer to dual enthalpy.
• Burglar Bars - Mount in the supply and return openings
to prevent entry into the duct work.
• Flue Exhaust Extension Kit - In locations with wind or
weather conditions which may interfere with proper
exhausting of furnace combustion products, this kit can be
installed to prevent the flue exhaust from entering nearby
fresh air intakes.
• CO
2
Sensor - Senses CO
2
levels and automatically
overrides the economizer when levels rise above the
present limits.
• Coil Guard - Customers can purchase a coil guard kit to
protect the condenser coil from damage. This is not a hail
guard kit.
• Hail Guard - Hail Guard kit is available to prevent unit
from hail damage. This is a sloped hood that fits above
the coil.
• Gas Piping Kit - This kit supplies all necessary fittings
and shut off valve.
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