Bryant 580D manual Options and Accessories, Time Guard II Control, Durablade Economizer, Sizes

OPTIONS AND ACCESSORIES (cont)

LIQUID PROPANE (LP) CONVERSION KITS	BRYANT COMMERCIAL
	PROGRAMMABLE THERMOSTAT

036-072 SHOWN

The LP conversion kit allows the unit to utilize a liquid propane fuel supply in areas where natural gas is unavailable, and per- mits the unit to be converted from natural gas to LP gas use. The kit contains the ori®ces required for LP operation.

Designed speci®cally for use with Bryant commercial sys- tems, this Bryant programmable thermostat features LED occupied/unoccupied displays and setback mode which can override continuous fan operation.

TIME GUARD II CONTROL

Time Guard II control automatically prevents compressor from restarting for at least 5 minutes after a shutdown. Accessory prevents short cycling of compressor if thermostat is changed rapidly. Time Guard II control mounts in the control compart- ment of unit.

DURABLADE ECONOMIZER

(SIZES 036-150)

PARABLADE ECONOMIZER

(SIZES 036-150)

Exclusive Durablade economizer damper design saves energy while providing economical and reliable cooling. A sliding plate on the face of the economizer controls the amount of outdoor air entering the system. Closed, it provides a leakproof seal which prevents ambient air from seeping in or conditioned air from seeping out. It can be ad- justed easily for 100% outdoor air or any proportions of mixed air. Like the base unit, the economizer is converted easily for horizontal discharge applications.

The unique design of the Parablade economizer saves energy while providing economical and reliable cooling. The design uses a parallel- opposed blade damper. The economizer also has built-in spring return for reliable close-on-power-loss. The Parablade design incorporates standard enthalpy controls and up to 45% barometric relief capability for additional ¯exibility in high outdoor air¯ow applications.

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