York Predator ZF120 Technical Manual page 9

installed to prevent the flue exhaust from entering nearby
fresh air intakes.
• Gas Heat High Altitude Kit - This kit converts a gas heat
unit to operate at high altitudes, 2,000 to 6,000 feet.
Conversion kits are available for natural gas and propane.
• Gas Heat Propane Conversion Kit - This kit converts a
gas-fired heater from natural gas to propane. It contains the
main burner orifices and gas valve replacement springs.
• Gas Piping Kit - Contains pipe nipples, fittings and gas cock
required for gas supply connection with external shut off.
• Electric Heaters - The electric heaters range from 9 kW
to 54kW and are available in all the voltage options of the
base units. The 54kW/208-240 volt, Field-installed heater
kit is not available with VAV units due to a lack of space to
accommodate the heater's fuse block accessory.
Cooling units include an adapter panel for easy
installation of the electric heaters. Necessary hardware
and connectors are included with the heaters. All heaters
are intended for single point power supply.
Johnson Controls Unitary Products
• Metal Frame Filter Kit - Metal frame with polyester filter
medium.
• Permanent Filters - Permanent filters are available.
• Roof Curbs - The roof curbs have insulated decks and are
shipped disassembled The roof curbs are available in 8" and
14" heights. For applications with security concerns, burglar
bars are available for the duct openings of the roof curbs.
• Roof Curb Transition - Single Piece Adapter (10" High) -
Roof curbs for transitioning from Sunline™ units to
®
Predator units. Fits 7.5 to 12.5 Sunline™ roof curbs only.
• Burglar Bars - Mount in the supply and return openings
to prevent entry into the duct work.
• Thermostat - The units are designed to operate with 24-
volt electronic and electro-mechanical thermostats. All
units (with or without an economizer) operate with two-
stage heat/two-stage cool or two-stage cooling only
thermostats, depending upon unit configuration.
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