Roof Curb - York PREDATOR DM120 Technical Manual

036-21044-003-A-0304
• Low Limit / Compressor Lockout Kit
1. Compressor Lockout (CLO): To prevent mechani-
cal (compressorized) operation of the unit during
cold outdoor conditions where there is a risk of
returning liquid refrigerant back to the compressors.
2. Low Limit Control (LLC): To prevent the supply air
from dropping below a specified setpoint by utilizing
the units first stage heating means when there is a
demand for cooling during cold outside conditions.
• 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
Unitary Products
in 8" (203 mm) and 14" (356 mm) heights. For applica-
tions with security concerns, burglar bars are available
for the duct openings of the roof curbs.
• Roof Curb Transition - Single Piece Adapter (10" (254
mm) High) - Roof curbs for transitioning from Sunline™
®
units to Predator Magnum. 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 ther-
mostats, depending upon unit configuration.
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