Specifications

036-21551-001-B-0305
Unitary Products Group 7
and stainless steel tubular heat exchangers carry a 10-
year warranty.
FACTORY INSTALLED OPTIONS
YORK
®
offers several equipment options factory installed, for
the Predator
®
line.
• Downflow Economizer - (With barometric relief) - The
economizer is provided with a single enthalpy input. The
economizer is 2% low leakage type, and is shipped
installed and wired. The installer needs only to assemble
and mount the outdoor air hood (Provided). The econo-
mizer has spring return, fully modulating damper actuators
and is capable of introducing up to 100% outdoor air. As
the outdoor air intake dampers open, the return air damp-
ers close. The changeover from mechanical refrigeration
to economizer operation is regulated by the standard sin-
gle enthalpy input. There is an optional input dual dry bulb
available. To meet regulated air standards, the economizer
control accepts an optional CO
2
input for demand ventila-
tion. With single enthalpy input, the economizer control
monitors outdoor air. The dual enthalpy kit provides a sec-
ond input used to monitor the return air. With a dual input
kit installed, the economizer control compares the values
of the two enthalpy or temperature inputs and positions the
dampers to provide the maximum efficiency possible.
• Horizontal Economizer - (Without barometric relief) -
All features of the downflow economizer exist except you
must order the duct mount barometric relief separately.
You must order a 1EH0408 if you are installing a
power exhaust. You can order a 1RD0411 Barometric
Relief for horizontal flow economizers only.
• Slab Economizer for Energy Recovery Ventilators-
(With barometric relief and Fresh Air Hood) - The
economizer is provided with a single enthalpy input. The
economizer is 2% low leakage type, and is shipped
installed and wired. The economizer has spring return,
fully modulating damper actuators and is capable of intro-
ducing up to 100% outdoor air. As the outdoor air intake
dampers open, the return air dampers close. The
changeover from mechanical refrigeration to economizer
operation is regulated by the standard single enthalpy
input. There is an optional input dual dry bulb available. To
meet regulated air standards, the economizer control
accepts an optional CO
2
input for demand ventilation.With
single enthalpy input, the economizer control monitors
outdoor air. The dual enthalpy kit provides a second input
used to monitor the return air. With a dual input kit
installed, the economizer control compares the values of
the two enthalpy or temperature inputs and positions the
dampers to provide the maximum efficiency possible.
• Power Exhaust (Downflow only) - This accessory
installs in the unit with a down flow economizer.
• Motorized Outdoor Air Damper - The motorized out-
door air damper includes a slide-in/plug-in damper
assembly with an outdoor air hood and filters. The out-
door air dampers open to the preset position when the
indoor fan motor is energized. The damper has a range
of 0% to 100% outdoor air entry. Factory installed option
or field installed accessory.
• Alternate Indoor Blower Motor - For applications with
high static restrictions, units are offered with optional
indoor motors that provide higher static output and/or
higher airflow, depending upon the installer’s needs.
• Aluminized Steel Gas Heat Exchanger - For applica-
tions in non-corrosive environments.
• Stainless Steel Gas Heat Exchanger - For applications
in corrosive environments, this option provides a full
stainless steel heat exchanger assembly.
• Stainless Steel Drain Pan - Provides years of trouble
free operation in corrosive environments.
• Electric Heaters - The electric heaters range from 9kW
to 54kW and are available in all the voltage options of the
base units. All heaters are dual staged. All heaters are
intended for single point power supply.
• Disconnect Switch - For gas heat units and cooling
units with electric heat, a HACR breaker sized to the unit
is provided. For cooling only units, a switch sized to the
largest electric heat available for the particular unit is
provided. Factory installed option only.
• Convenience Outlet - (Non-Powered/Powered) - This
option locates a 120V single-phase GFCI outlet with
cover, on the corner of the unit housing adjacent to the
compressors. The “Non-powered” option requires the
installer to provide the 120V single-phase power source
and wiring. The “Powered” option is powered by a step-
down transformer in the unit. Factory installed option only.
• Smoke Detectors - The smoke detectors stop operation
of the unit by interrupting power to the control board if
smoke is detected within the air compartment. Available
for both the supply and/or return air.
• Phase Monitors - Designed to prevent unit damage.
The phase monitor will shut the unit down in an out-of
phase condition. (Standard on units with Scroll Com-
pressors.)
• Coil Guard - Customers can purchase a coil guard kit to
protect the condenser coil from damage. Additionally,
this kit stops animals and foreign objects from entering
the space between the inner condenser coil and the
main cabinet. This is not a hail guard kit.
• Dirty Filter Switch - This kit includes a differential pres-
sure switch that energizes the fault light on the unit ther-
mostat, indicating that there is an abnormally high
pressure drop across the filters. Factory installed option
or field installed accessory.
• Technicoat Condenser Coils - The condenser coils are
coated with a phenolic coating for protection against cor-
rosion due to harsh environments.