036-21484-003-A-0804
Unitary Products 5
• Easy Installation – Gas and electric utility knockouts are
supplied in the unit underside as well as the side of the
unit. A clearly identified location is provided to mount a
field supplied electrical disconnect switch. Utility connec-
tions can be made quickly and with a minimum amount
of field labor.
All units are shipped with 2” throw-away filters installed.
• Wide Range of Indoor Airflows – All indoor fan motors
are belt-drive type providing maximum flexibility to han-
dle most airflow requirements. For high static applica-
tions, factory installed alternate indoor fan motors are
available. With the optional indoor fan motor, all units can
supply nominal airflow at a minimum of 1.5” ESP.
• Warranty - All models include a 1-year limited warranty
on the complete unit. Compressors and electric heater
elements each carry a 5-year warranty. Aluminized steel
and stainless steel tubular heat exchangers carry a 10-
year warranty.
FACTORY INSTALLED OPTIONS
YORK
®
offers several equipment options factory installed, for
the Predator
®
Magnum 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 actua-
tors and is capable of introducing up to 100% outdoor air.
As the outdoor air intake dampers open, the return air
dampers close. The changeover from mechanical refrig-
eration to economizer operation is regulated by the stan-
dard 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 econ-
omizer 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 maxi-
mum 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.
• BAS Ready Economizer -(With barometric relief) -
The economizer is provided with a Belimo actuator that
requires a 0-10V DC input from an external source (i.e.,
field installed building automation system controller).
Power exhaust options are available. The economizer is
2% low leakage type with spring return and fully modu-
lating dampers capable of introducing up to 100% out-
side air. Also include 2” pleated filters.
• 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
introducing 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 moni-
tors 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 - An optional rust-proof stain-
less steel drain pan is available to provide years of trou-
ble-free operation in corrosive environments.
• Electric Heaters - The electric heaters range from 18kW
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, an 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.
