Bryant manual Features/Benefits, Model 581B, Commercial, Single Package Rooftop, Units, Sizes

COMMERCIAL	Model 581B
SINGLE PACKAGE ROOFTOP	DuraPac Plus Series
GAS HEAT/ELECTRIC COOLING	Sizes 036-150
UNITS	3 to 121/2 Tons

Unit 581B036-072

Bryant has designed the DuraPac Plus series based on customer needs and requests to be the most efficient and reli- able ever.

FEATURES/BENEFITS

•Efficient rooftop line for cooling using scroll compressor technology

•Efficient rooftop line for heating using dimpled heat exchangers

•High reliability — non-corrosive condensate pans, prepainted cabinets and primed interior panels, and all units are fully protected by internal safeties

•Quiet operation — isolated compressor plate. All compres- sors mounted on independent vibration isolators. Standard, belt-driven evaporator fan motors on all units

•Ease of maintenance achieved by self diagnostics on the Integrated Gas Controller (IGC), standard size filters, no tool filter access, simple compressor access, permanently lubri- cated fan motors, optional disconnect switch, optional hinged access panels, and optional 115-v convenience outlet

•Performance and comfort enhancing options — High-static motors and Perfect Humidity™ dehumidification package.

BRYANT MEANS TOP QUALITY AND RELIABILITY — Each component utilized in the DuraPac Plus series is designed and tested for a minimum of 15 years operation under the harshest conditions.

Every unit is thoroughly run tested at the factory in each oper- ating mode and evacuated prior to final charging. Every coil is leak-tested with helium particles. Automated run testing allows accurate undisputed tests and measurements which are sec- ond to none in the industry.

Each unit contains a factory printout indicating tested pres- sures, amperages, dates, and inspectors, providing certifica- tion of the unit’s status at the time of manufacture.

Units are equipped with valuable safety controls designed to monitor and protect for the life of the unit. The standard safe- ties include:

• low-pressure/loss-of-charge switch

Unit 581B090-150

•high-pressure switch

•freeze-protection thermostat

•internal compressor overload

•exclusive Cycle-LOC™ circuit board that prevents compres- sor cycling

•refrigerant filter drier

The cabinet is constructed of galvanized steel, bonderized and coated with a prepainted baked enamel finish. The paint finish is a non-chalking type, and is capable of exceeding Federal Test Method Standard No. 141 (Method 6061) 500-Hour Salt Spray Test. In addition, all cabinet interior surfaces are primed, allowing the entire unit to have a longer life and more attractive appearance.

EASY MAINTENANCE AND INSTALLATION

All Units are Factory Shipped in the Vertical Discharge Configuration for fit-up to standard roof curbs. (One acces- sory curb fits sizes 036-072; another accessory curb fits sizes 090-150.) Contractors can order and install the roof curbs early in the construction stage, before decisions on size requirements have been made.

All Units Feature Heavy-Gage Roll-Formed Baserail design with forklift slots on 3 sides of the unit and rigging holes for easier maneuvering and installation. Stretch-wrap packaging protects the unit during shipment and storage.

Units are Easily Converted from vertical to horizontal applica- tions to make retrofit and add-on jobs easier. To convert from vertical to horizontal discharge, simply relocate 2 panels. The same basic unit can be used for a variety of applications and can be quickly modified at the jobsite.

Standard high-performance, belt-driven, evaporator-fan motors enable 581B036-150 units to operate in most ductwork configurations.

Ductwork Connections are Made Easy by the logical 2 to 1 aspect ratio. On vertical discharge units, ductwork attaches directly to the roof curb.

Form No. PDS 581B.36.5