Bryant 581A/B manual Features/Benefits, Sizes, 579F180-216, 581A155,180, 580F180,210

COMMERCIAL	580F, 579F, 581A/B
	DuraPac and
SINGLE PACKAGE ROOFTOP UNITS
	DuraPac Plus Series
GAS HEATING/ELECTRIC COOLING UNITS
	Sizes 036-300
	3 to 25 Tons

	50-1242f		579F180-216
48-910df	SIZES 036-073	50-1214df
	SIZES 090-151		581A155,180
			580F180,210

581A210-300	a48-8207	580F240	a48-5997	580F300
		579F240-300	48-831df

Standard efficiency units (580F072, 090, 120, 150 and 579F180-300) are available. Standard efficiency units (580F036-060, 073, 091,103,121,151, and 180-300) that meet ASHRAE 90.1-04 minimum energy efficiency requirements are also available. High efficiency units (581B036-150 and 581A155-300) well exceed ASHRAE 90.1-04 energy efficiency requirements and must comply with Energy Star high efficiency requirements. Gas heating with electric cooling rooftops offer:

•Pre-painted galvanized steel cabinet for long life and quality appearance

•Commercial strength base rails with built-in rigging capability

•Convertible design for vertical or horizontal supply/return (036-151 and 210-300 only)

•Non-corrosive, sloped condensate drain pan, meets ASHRAE 62 (IAQ)

•Two-inch return-air filters

•A wide assortment of factory-installed options available, including high-static drives that provide additional perfor- mance range

•Factory-installed optional gear driven EconoMi$er IV (vertical return for sizes 036-151 only) for use with standard rooftop unit controls (includes CO2 sensor control capability)

•Factory-installed optional gear driven EconoMi$er2 (vertical return only) for use with third party DDC controls (includes 4 to 20 mA actuator for demand control ventilation)

•Perfect Humidity™ dehumidification package (581B036-150 only)

•Hot gas reheat dehumidification package (581A181-300 only)

Heat Options

•Exclusive integrated gas control board with diagnostics

•Alumagard™ heat exchanger coating

•Induced-draft fan for gas combustion

•Tubular, dimpled heat exchangers

•Natural gas

•LP conversion kits

•Low NOX (size 036-060 only)

•Optional stainless steel heat exchangers.

FEATURES/BENEFITS

Every compact one-piece unit arrives fully assembled, charged, tested, and ready to run.

GAS HEAT MODELS — All ignition components are contained in the compact IGC (integrated gas controller) which is easily accessible for servicing. The IGC control board, designed and manufactured exclusively for Bryant rooftop units, provides built-in diagnostic capability. An LED (light-emitting diode) sim- plifies troubleshooting by providing visual fault notification and system status confirmation.

The IGC also contains an exclusive anti-cycle protection for gas heat operation. After 4 continuous cycles on the unit high- temperature limit switch, the gas heat operation is disabled, and an error code is issued. This feature greatly improves reli- ability of the rooftop unit.

The IGC also contains burner control logic for accurate and dependable gas ignition. The LED is visible without removing the unit control box access panel. This LED fault-notification system reduces service person troubleshooting time and mini- mizes service costs. The IGC also maximizes heating effi- ciency by controlling evaporator-fan on and off delays.

Tubular, dimpled gas heat exchangers optimize heat transfer for improved efficiency. The tubular design permits hot gases to make multiple passes across the path of the supply air. The dimpled design creates a turbulent gas flow to maximize heat- ing efficiency.

Form No. PDS 580F.36.3