Operating data for the systemsHistory of fault shutdown data for up to the lastsix fault shutdown conditions.Īn RS-232 port, in conjunction with this pressto-print button, is provided to permit the capabilityof hard copy print-outs via a separate printer.ĮNTRY section to:ENTER setpoints or modify system values Two display linesTwenty characters per lineĬolor coded 12-button non-tactile keypad withsections for:DISPLAY/PRINT of typical information:Ĭhilled liquid temperaturesAmbient temperatureSystem pressures (each circuit)Operating hours and starts (each compressor) Liquid Crystal Display with Light Emitting Diode back-lighting for outdoor viewing:. The power wiring is routed through liquid-tight conduitto the compressors and fans.Īll controls are contained in a weather proof cabinetwith hinged outer door and includes: Control power terminals to accept incoming forġ15-1-50 / 60 control power Fan contactors & overload current protection Programmedsetpoints are retained in lithium battery-backed RTCmemory for 5 years minimum.Įach panel contains: Compressor power terminals Compressor motor soft starters or across-the-line The operating program is stored in non-volatilememory (EPROM) to eliminate chiller failure due toAC powered failure/battery discharged. Provisions are included for: pumpdown at shutdown optional remote chilled water temperature reset andtwo steps of demand load limiting from an externalbuilding automation system. They feature ball bearingsthat are double-sealed and permanently lubricated. Motors - The fan motors are Totally Enclosed ForceCooling, squirrel-cage type. The fan guardsare constructed of heavy-gauge, rust-resistant andoven baked polyester coating.
YORK YCAL LOW AMBIENTKIT FREE
Theyare designed for maximum efficiency and are staticallyand dynamically balanced for vibration free operation.They are directly driven by independent motors, andpositioned for vertical air discharge.
The testing pressure of the coil is 450PSIG(31 bar).įans - The condenser fans consist of corrosionresistant aluminum hub and glass fiber reinforcedcomposite blades molded into a low noise design. The water baffles are constructed of galvanized steelto resist corrosion.Ĭoils -The condenser coils are seamless coppertubes arranged in staggered rows, mechanicallyexpanded into aluminum fins. The cooler is covered with 19mm (3/4) flexible,closed-cell, foam insulation (K=0.25). A largeinternal volume and oil reservoir means greater liquidtolerance. All rotatingparts are statically and dynamically balanced. Highefficiency is achieved through a controlled orbit andthe use of an advanced scroll geometry.
The compressors features are no-contact scroll design utilizing floating tip seals. The chiller has suction-gas cooled, hermetic, scrollcompressors.
Afterassembly, a complete operational test is performedwith water flowing through the cooler to ensure thatthe refrigeration circuit operates correctly. The unit is pressure-tested, evacuated, and fullycharged with Refrigerant-22 (HCFC-22) or optionalR-407C and includes an initial oil charge. The 20-115 Ton (70-400 kW) YCA Models are shippedcomplete from the factory ready for installation anduse. Proof microprocessor control center, all mounted on a formed steel base. Includes hermetic scroll compressors, a liquid cooler, air cooled condenser, and a weather Self-contained and are designed for outdoor (roof or ground level) installation.
YORK Millennium Air-Cooled Scroll Chillers provide chilled water for all air conditioningĪpplications using central station air handling units or terminal units. WATER FLOW (GPM) AGAINST PRESSURE DROP (FT).
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