Évaluations - 3, GPA: 4.3
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Facilité d'utilisation
DESCRIPTION 548J***D units are one- --piece, two- --stage heat pump units that are low profile, prewired, tested and charged at the factory. These are intended for installation on a roof curb accessory (ordered separately), or for slab mounting (for horizontal duct connections). Units are designed to accept field- --installed electric heaters. Units may be ordered with various factory- --installed options. Field- --installed accessories are also available. STANDARD FEATURES Base Unit S Puron (R- --410A) HFC refrigerant S EER’s up to 10.8 S IEER’s up to 11.5 S COP’s upto3.3 S ASHRAE 90.1 energy compliant S Rated in accordance with AHRI Standard 340/360 S Designed in accordance with Underwriters’ Laboratories Standard 1995 S Two- --stage cooling capacity control on all models S Non- --corrosive composite sloping design; side or center drain condensate pan. Meets ASHRAE Standard 62 S Cooling operating range from 30_Fupto115_F (--1_Cupto46_C). S Dedicated vertical nd horizontal airflow models available, ordered as factory option. No special kits required S Two- --inch disposable return air filters S Thru- --the- --bottom power entry capability S Single point electric connections on field- --installed electric heat units S 24- --volt control circuit protected with resettable circuit breaker and 75- --VA transformer S Belt drive, constant torque, permanently lubricated evaporator--fan motor on all size units. S Totally enclosed condenser motors with permanently lubricated bearings S State--of--the--art defrost control board, easily configured for defrost cycles of 30, 60, 90, or 120 minutes. S Centralized Terminal Board for component and unit wiring connections. S Loss of Charge, High- --Pressure, and Freeze Protection switches S Full perimeter base rail with built- --in rigging adapters and fork truck slots. Cabinet S Access panels with easy grip handles S Innovative, easy starting, no strip screw features on unit access panels. S Pre- --painted exterior panels and primer- --coated interior panels tested to 500 hours salt spray protection S Fully insulated cabinet S Tool- --less filter access door Refrigerant System S Acutrolt refrigerant metering system S Liquid line filter drier S Scroll compressors with internal line- --break overload protection S Indoor and outdoor coils constructed of aluminum fins mechanically bonded to seamless copper tubes. S Removable gauge line plugs for reading refrigerant pressure with unit panels in place S Four--way reversing valve operation S Suction Line Accumulator standard - --prevents excessive liquid flood back of refrigerant to the compressor even during the start of the defrost cycle. Standard Parts Warranty S 5- --year electric heater (field- --installed) S 5- --year compressor S 1- --year parts SUBMITTAL DATA Job Name Architect Engineer Contractor 548J***D Unit Designation PERFORMANCE DATA Unit Operating Weight Cooling Net Total Capacity Net Sensible Capacity Compressor Power Input at Outdoor Air Temperature Indoor Entering Air db: _Fwb CFM External Static Pressure EER IEER lb Btuh Btuh kW _F _F in wg Curb Weight Heating Power Input to Unit Integrated Capacity Indoor Operating Air Temperature Outdoor Air Temperature Rating at 70% R.H. Outdoors Electrical Capacity Required COP High lb kw Btuh _Fdb _F (Winter Design) kW Heater Selected Heat/Cool Ratio Btuh Low ELECTRICAL DATA Power Supply to Unit Minimum Circuit Amps Volts Phase Maximum Overcurrent Protection (Fuse Only) Hz 2 OPTIONS AND ACCESSORIES FACTORY- --INSTALLED OPTIONS (FIOPs) j Open protocol RTU Direct Digital Control (DDC) LON, MODBUS, BACNET and Johnson N2 protocols. j Dedicated vertical discharge and return air units j Dedicated horizontal discharge and return air units j Through the base connectors electric conduit j EconoMi$ert IV with controls and barometric relief (vertical only) j EconoMi$er2 with 4- --20 mA actuator and barometric relief only (for RTU- --MP/OPEN or 3rd party EMS system control) j Two- --position motorized outdoor air damper j Non- --fused disconnect switch (80 A Max) j Powered 115- --volt convenience outlet j Non- --powered 115- --volt convenience outlet j High static indoor fan motor and drive j Return Air smoke detector j Supply Air smoke detector j Smoke detectors - --return and supply air j Pre- --coated Al/Cu condenser coil j E- --coated Al/Cu condenser coil j E- --coated Al/Cu condenser and evaporator coil j Cu/Cu condenser coil j Cu/Cu condenser coil and evaporator coil j Condenser hail guard — louvered style j CO2 sensor OPTIONAL WARRANTIES j Complete Unit Parts only up to 5 years j Complete Unit Parts and Labor up to 5 years Many other optional warranties are available. See the Commercial Start- --Up and Optional Extended Warranty Price price pages for further information. FIELD INSTALLED ACCESSORIES j EconoMi$er IV with controls and barometric relief — vertical or horizontal j EconoMi$er2 with 4- --20 mA actuator, barometric relief, and no microprocessor — vertical or horizontal...