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•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” (375 Pa) ESP.
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 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 CO2 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 as the downflow economizer exist except you must order the 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” (51 mm) pleated filters.
•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.
•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.
•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.
•Technicoat Evaporator Coil - The evaporator coils are coated with a phenolic coating for protection against cor- rosion due to harsh environments.
•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.
