return is desired, the installer simply removes the two side duct covers from the outside of the unit and installs them over the down shot openings. No panel cutting is required. Convertible airflow design allows maximum field flexibility and minimum inventory.
•System Protection - Suction line freezestats are sup- plied on all units to protect against loss of charge and coil frosting when the economizer operates at low outdoor air temperatures while the compressors are running. Every unit has
•Advanced Controls - Simplicity® control boards have standardized a number of features previously available only as options or by utilizing additional controls.
•Low Ambient - An integrated
•
•Fan Delays - Fan on and fan off delays are fully pro- grammable. Furthermore, the heating and cooling fan delay times are independent of one another. All units are programmed with default values based upon their configuration of cooling and heat.
•Safety Monitoring - The control board monitors the high and
•Nuisance Trip Protection and Strikes - To prevent nuisance trouble calls, the control board uses a “three times, you’re out” philosophy. The high and
•On Board Diagnostics - Each alarm will energize a trouble light on the thermostat, if so equipped, and flash an alarm code on the control board LED. Each high and
Alarms and programmed values are retained through the loss of power.
•Reliable – From the beginning – All units undergo com- puter automated testing before they leave the factory. Units are tested for refrigerant charge and pressure, unit amperage, and 100% functionality. For the long term – All Predator® units are painted with a long lasting, pow- der paint that stands up over the life of the unit. The paint used has been proven by a 1000 hour salt spray test.
•Flexible Placement – All models and configurations share the same cabinet/footprint and thus the same roof curb. You have the flexibility to set one curb and choose the correct tonnage size and heating option after the internal loads have been determined.
To further simplify planning and installation, Predator® cabinets are designed to fit your roof. With the optional roof curb, the unit ductwork is designed to fit around 24”
The drain pan can be rotated to drain to either the front or the rear of the unit. Additionally, the drain pan can be fitted to drain through the roof curb. As it is sometimes difficult to have a level installation, the drain pan features a generous slope to ensure proper drainage.
•Full Perimeter Base Rails – The permanently attached base rails provide a solid foundation for the entire unit and protect the unit during shipment. The rails offer forklift access from 3 sides, and rigging holes are available so that an overhead crane can be used to place the units on a roof.
•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 sup- plied electrical disconnect switch. Utility connections can be made quickly and with a minimum amount of field labor.
All units are shipped with 2”
•Wide Range of Indoor Airflows – All indoor fan motors are
•Warranty - All models include a
FACTORY INSTALLED OPTIONS
YORK® offers several equipment options factory installed, for the Predator® line.
•Optional Factory Installed Economizers - Predator units offer a variety of optional factory installed econo- mizers with low leak dampers. The outdoor air enthalpy sensor enables economizer operation if the outdoor enthalpy is less than the setpoint of the economizer logic module. See Table 38 to determine the correct econo- mizer for your application.
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