York 251934-YTG-J-0910 User Manual

Page 8

251934-YTG-J-0910

Johnson Controls Unitary Products

Control Options

• BAS - Building Automation System Controls

(available on two-system cooling product only).

Simplicity™ INTELLI-Comfort™ Control - The York

Simplicity™ INTELLI-CO

sensor to perform Differential

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
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
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.

Simplicity™ INTELLI-Comfort™ with Simplicity™LINC
Control - The York® Simplicity™ INTELLI-Comfort™ with
Simplicity™LINC 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® 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

YORK

offers several equipment accessories for field

installation, for the ZJ/ZR/ZF Series.

• 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 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.
These full perimeter curbs meet the requirements of the
National Roofing Contractors Association (NRCA) and are
shipped knocked-down for field assembly.
They're 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.

• Side Duct Flanges - One-inch flanges replace the supply

and return air panels on the rear of the unit to accommodate
horizontal duct connections. These flanges can also be used
individually for bottom supply / horizontal return or horizontal
supply/bottom return. They cannot be used on units with
power exhaust.

• 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.

• High Static Drive - May include a belt, blower pulley,

motor pulley or a motor change to enhance blower
performance.

• 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.

• Wood Skid - Allows unit to be handled with 90" forks.
• CO

Sensor - Senses CO

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.