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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 compressors 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 lubricated 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 operating 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 second to none in the industry. Each unit contains a factory printout indicating tested pressures, amperages, dates, and inspectors, providing certification 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 safeties include: • low-pressure/loss-of-charge switch • high-pressure switch • freeze-protection thermostat • internal compressor overload • exclusive Cycle-LOC™ circuit board that prevents compressor 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 accessory 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 applications 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. Model 581B DuraPac Plus Series Sizes 036-150 3 to 121/2 Tons Unit 581B036-072 Unit 581B090-150 2 FEATURES/BENEFITS (cont) BALL BEARING, PERMANENTLYLUBRICATED MOTORS PREMIUM QUALITY SCROLL COMPRESSORS DIMPLED HEAT EXCHANGERS BELT DRIVEN EVAPORATOR FANS FACTORY-INSTALLED OPTIONAL CONVENIENCE OUTLET REFRIGERATION SYSTEM PROTECTION FACTORY-INSTALLED OPTIONAL DISCONNECT SWITCH FULLY MODULATING ECONOMIZER (OPTION OR ACCESSORY) HIGH-EFFICIENCY COILS ON-SITE CONVERTIBILITY FROM VERTICAL TO HORIZONTAL DISCHARGE HIGH-EFFICIENCY COILS AND FIXED ORIFICE REFRIGERANT METERING DEVICE SINGLE PIECE TOP PANEL NO TOOL FILTER ACCESS SLEEVE BEARING PERMANENTLYLUBRICATED MOTORS SLOPED, NON-CORROSIVE CONDENSATE DRAIN PAN FEATURES/BENEFITS (cont) Thru-the-Bottom Service Connection Capability comes standard with the rooftop unit to allow power and control wiring to be routed through the unit’s basepan, thereby minimizing roof penetrations (to prevent water leaks). Both power and control connections are made on the same side of the unit to simplify installation. The Non-Corrosive, Sloped, Condensate Drain Pan is standard and in conformance with ASHRAE (American Society of Heating, Refrigeration, and Air Conditioning Engineers) Standard 62 to meet many Indoor Air Quality (IAQ) specifications. The condensate drain pan offers both bottom and end drain capability to minimize roof penetrations. The bottom drain can be used in conjunction with thru-the-bottom connections. An external trap must be field supplied. Standard 2-in. Throwaway Filters are easily accessed through an easily remo...