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Hersteller: Bryant Dateigröße: 1.82 mb Dateiname: pds569d.72.2.pdf Unterrichtssprache:

CONSTRUCTED FOR LONG LIFE — The569D (singlecircuit, scroll compressor), 576C (single circuit semi-hermetic compressor), 569F/566E (dual circuit, scroll compressor) and 566D (semi-hermetic compressor) models are designed and built to last. The copper tube-aluminum fin outdoor coil construction provides years of trouble-free operation. Where conditions require them, E-coated coils and pre-coated fin coils are also available. Cabinets are constructed of prepainted galvanized steel, delivering unparalleled protection from the environment. Inside and outside surfaces are protected to ensure long life, good looks, and reliable operation. Safety controls are used for enhanced system protection and reliability. EFFICIENT OPERATION — Building owners will appreciate the high unit EERs (Energy Efficiency Ratios) offered by these condensing units. These units provide greater efficiency than similar units in the marketplace, which translates into year- round operating savings. CONTROLS FOR PERFORMANCE DEPENDABILITY — The condensing units offer the building owner operating controls and components designed for performance dependability. The highly efficient hermetic and semi-hermetic compressors are engineered for long life and durability. The compressors include overload protection and vibration isolation for enhancement of quiet operation. The high-pressure switch protects the entire refrigeration system from abnormally high operating 569D072-120 576C120 566D150-240 566E150-240 524A072-300 pressures. A low-pressure switch protects the system from low-pressure conditions, including loss of charge. The 569F120 and 566E150-240 units feature 2 scroll compressors and 2 refrigerant circuits that provide continuous air conditioning and design flexibility. These units also include Cycle-LOC™ anti-short-cycling protection which helps to protect the units against compressor failure. All units include a crankcase heater to eliminate liquid slugging at start-up. Units with semi-hermetic compressors are also equipped with an oil-level sight glass. Latest safety standards are assured through UL and UL Canada approvals. INNOVATIVE BRYANT PACKAGED AIR HANDLERS ARE CUSTOM MATCHED TO THE CONDENSING UNITS — The 524A Series has excellent fan performance, efficient direct- expansion (DX) coils, a unique combination of indoor-air quality features, and easy installation. Its versatility and state-ofthe- art features help to ensure that your split system provides economical performance now and in the future. Indoor-Air Quality (IAQ) Features — The unique combination of IAQ features in the 524A Series air handlers help to ensure that only clean, fresh, conditioned air is delivered to the occupied space. Direct-expansion (DX) cooling coils prevent the build-up of humidity in the room, even during part-load conditions. Unit sizes of 10 tons and above feature dual-circuit coils for improved temperature control. Standard 2-in. disposable filters remove dust and airborne particles from the occupied space for cleaner air. Form No. PDS 569D.72.2 Thermal insulation contains an EPA-registered immobilized anti-microbialagenttoinhibitthegrowthofbacteriaandfungi. The pitched, non-corroding drain pan can be adjusted for a right-or left-hand connection to suit many applications and providepositivedrainageandtopreventstandingcondensate. The524Aaccessoryeconomizercanprovideventilationairto improveindoorairqualitybyusingdemandcontrolventilation. Whenusedinconjunctionwitha2to10VDCadapteronthe actuator and a CO2 sensor, the economizer admits fresh outdoorairtoreplacestale,recirculatedindoorairasneeded. Economy — The524ASeriespackagedairhandlershavelow initial costs, and they continue to save money by providing reducedinstallationexpenseandenergy-efficientperformance. Quickinstallationisensuredbythemultipoisedesign.Unitscan beinstalledineitherthehorizontalorverticalconfigurationwithoutmodifications. Fanmotorsandcontactorsareprewiredand thermostatic expansion valves (TXVs) are factory-installed on all524Adirect-expansionmodels. High efficiency, precision-balanced fans minimize air turbulence, surging, and unbalanced operation, cutting operation expenses. Theeconomizeraccessorypreciselycontrolstheblendofoutdoor air and room air to achieve comfort levels. When the outside air enthalpy is suitable, outside air dampers can fully open to provide “free” cooling without energizing mechanical cooling. Rugged Dependability — The524Aseriesunitsaremadeto last.Thedie-formedgalvanizedsteelpanelsensurestructural integrity under all operating conditions. Galvanized steel fan housings are securely mounted to a die-formed galvanized steelfandeck. Ruggedpillow-blockbearings(524A150-300)aresecurelyfastened to the solid steel fan shaft with split collets and clamp lockingdevices.Smallerunitsizeshavespider-typebearings. Coil Flexibility — Model524Adirect-expansioncoilshavegalvanizedsteelcasings; inletandoutletconnectionsareonthe sameend.ThecoilsaredesignedforusewithRefrigerant22 andhav...

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