Carrier AQUAFORCE 30XA080-500 Product Data

Also see for AQUAFORCE 30XA080: Installation instructions Controls, start-up, operation, service and troubleshooting instructions Installation instructions Controls, start-up, operation, service and troubleshooting instructions

Carrier AQUAFORCE 30XA080-500 Product Data Manual pdf 50 page image

50Air-Cooled Liquid ChillerHVAC Guide SpecificationsSize Range: 80 to 500 Tons, NominalCarrier Model Number: 30XAPart 1 — General1.01 SYSTEM DESCRIPTIONMicroprocessor controlled, air-cooled liquid chillerutilizing screw compressors and low sound fans.1.02 QUALITY ASSURANCEA. Unit shall be rated in accordance with ARI Standard550/590 (U.S.A.).B. Unit construction shall comply with ASHRAE 15Safety Code, UL 1995, and ASME applicable codes(U.S.A. codes).C. Unit shall be manufactured in a facility registered toISO 9001:2000 Manufacturing Quality Standard.D. Unit shall be full load run tested at the factory.1.03 DELIVERY, STORAGE AND HANDLINGA. Unit controls shall be capable of with-standing 150 F (65.5 C) storage temperatures in thecontrol compartment.B. Unit shall be stored and handled per unit manufac-turer’s recommendations.Part 2 — Products2.01 EQUIPMENTA. General:Factory assembled, single-piece chassis, air-cooledliquid chiller. Contained within the unit cabinet shallbe all factory wiring, piping, controls, refrigerantcharge (R-134a), and special features required priorto field start-up.B. Unit Cabinet:1. Frame shall be of heavy-gage, painted galva-nized steel.2. Cabinet shall be galvanized steel casing with abaked enamel powder or pre-painted finish.3. Cabinet shall be capable of withstanding500-hour salt spray test in accordance with theASTM (U.S.A.) B-117 standard.C. Fans:1. Condenser fans shall be direct-driven, 9-bladeairfoil cross-section, reinforced polymer con-struction, shrouded-axial type, and shall be stat-ically and dynamically balanced with inherentcorrosion resistance.2. Air shall be discharged vertically upward.3. Fans shall be protected by coated steel wiresafety guards.D. Compressor/Compressor Assembly:1. Comprised of semi-hermetic twin screw typecompressors.2. Compressor motor shall be direct drive,3500 rpm, protected by motor temperaturesensors, suction gas cooled motor.3. Capacity control shall utilize an infinitely modu-lating slide valve to modulate capacity from100% to 15% full load.E. Cooler:1. Shall be a mechanically cleanable tubes in ashell-and-tube type cooler with removableheads.2. Tubes shall be internally enhanced seamless-copper type rolled into tube sheets.3. Shall be equipped with Victaulic-type waterconnections.4. Shell shall be insulated with 3 / 4 -in. PVC foam(closed-cell) with a maximum K factor of 0.28.5. Design shall incorporate a minimum of 2 or 3independent refrigerant circuits.6. Cooler shall be tested and stamped in accor-dance with ASME Code for a refrigerant work-ing side pressure of 220 psig. Cooler shall havea maximum water-side pressure of 300 psig.7. Cooler shall have a cooler drain and vent.8. Low-ambient temperature protection: unit shallhave factory-installed cooler heater, andpumpout cycle to protect cooler from ambienttemperature freeze down to 0° F (–15 C).F. Condenser:1. Coil shall be air-cooled with integral subcooler,and shall be constructed of aluminum finsmechanically bonded to seamless copper tubes.2. Tubes shall be cleaned, dehydrated, and sealed.3. Assembled condenser coils shall be leak testedand pressure tested at 375 psig (2585 kPa).G. Refrigeration Components:Refrigerant circuit components shall includereplaceable-core filter drier, moisture indicating sightglass, electronic expansion valve, discharge servicevalves and liquid line service valves, and completeoperating charge of both refrigerant R-134a andcompressor oil.H. Controls, Safeties, and Diagnostics:1. Unit controls shall include the following mini-mum components:a. Microprocessor with non-volatile memory.Battery backup system shall not be accepted.b. Separate terminal block for power andcontrols.c. Separate 115-v power supply to serve allcontrollers, relays, and control components.d. ON/OFF control switch.e. Replaceable solid-state controllers.f. Pressure sensors installed to measure suc-tion, oil, economizer, and discharge pressure.Thermistors installed to measure coolerentering and leaving fluid temperatures andoutside air temperature.Guide specifications