York YCWS manual Specifications

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Specifications

GENERAL

The Liquid Chiller will be completely assembled with all interconnecting refrigerant piping and internal wiring, ready for field installation.

The unit will be pressure-tested, evacuated, and charged with Refrigerant-22, and York ‘L’ (POE) synthetic oil. There will be an operational test, with water flowing through the cooler, to check that each control device operates correctly.

The unit will be covered with a coat of Caribbean Blue enamel. Units are designed in accordance with NFPA 70 (National Electric Code), U.L. and cU.L. Standards, ASHRAE/ANSI 15 Safety Code for Mechanical Refrig- eration. All units are produced at an ISO 9001 regis- tered facility. All YCWS chillers are rated and certified in accordance with ARI Standard 550/590 at ARI condi- tions.

SEMI-HERMETIC YORK SCREW COMPRESSORS

Continuous function, microprocessor controlled, 3- way proportional Capacity Control Valve provides regulated output pressure independent of valve input pressure for a stable, smooth, and precise match of compres- sor capacity to cooling load to 10% of chiller capacity.

Automatic spring return of capacity control valve to minimum load position ensures compressor starting at minimum motor load. Internal discharge check to prevent rotor backspin upon shutdown.

Acoustically tuned, internal discharge gas path elimi- nates objectionable noise at the source, while optimiz- ing flow for maximum performance.

Reliable suction gas cooled, high efficiency, acces- sible hermetic motor with APT2000 type magnet wire and redundant overload protection using both ther- mistor and current overload protection.

Suction gas screen and serviceable, 0.5 micron full flow oil filter within the compressor housing.

Cast iron compressor housing precisely machined for optimal clearances and superb efficiency. Entire com- pressor, from suction to discharge has a Design Work- ing Pressure of 450psig (31 bar).

350W compressor body cartridge heater.

Each compressor will be mounted on isolator pads to reduce transmission of vibration to the rest of the unit.

COOLER

The dual-circuit cooler will be the direct-expansion type, with refrigerant in the tubes and chilled liquid flowing through the baffled shell. The design working pressure of the shell (liquid) side will be 150 PSIG (10.3 bar), and 300 PSIG (26.7 bar) for the tube (refrigerant) side.

The cooler will be constructed and tested in accordance with the applicable sections of the ASME Pressure Ves- sel Code, Section VlII, Division (1). The water side will be exempt per paragraph U-1, (c)(6).

The water baffles will be constructed of galvanized steel to resist corrosion. The removable heads will allow ac- cess to the internally enhanced, seamless, copper tubes. Vent and drain connections will be included.

The cooler will be covered with 3/4" (19.1 mm ) flexible, closed-cell, foam insulation (K = 0.25).

CONDENSER

The condenser is a cleanable thru-tube type with steel shell, copper tubes, removable water heads, and includes integral subcooling. Refer to PHYSICAL DATA for de- sign working pressures. The shell will be constructed and tested in accordance with section Vll, division 1 of the ASME pressure-vessel code. The water side is ex- empt per paragraph U-1 (c) of section VlII, division 1 of the ASME pressure-vessel code. The condenser is equipped with relief valves and will hold the full refriger- ant charge for pumpdown.

REFRIGERANT CIRCUIT

Two independent refrigerant circuits will be furnished on each unit. All piping will be copper with brazed joints. The liquid line will include: a shutoff valve with charging port; sightglass with moisture indicator; thermal expan- sion valve; solenoid valve; and high-absorption remov- able-core filter drier. The entire suction line and the liq- uid line between the expansion valve and the cooler will be insulated with flexible, closed-cell, foam insulation.

POWER AND CONTROL PANELS

All controls and motor starting equipment necessary for unit operation shall be factory wired and function tested. The panel enclosures shall be designed to NEMA 1 (IP

32)and manufactured from powder-painted galvanized steel.

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YORK INTERNATIONAL

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Contents Ycws Nomenclature Introduction York Ycws Water Cooled Screw ChillersSpecifications Microprocessor Controls Program Accessories & Options Electrical Options Multiple Point Power Supply ConnectionDesign Parameters YcwsTEV Pressure Drops Cooler Water Pressure Drop Curves EnglishCooler Water Pressure Drop Curves SI Selection Data Guide to SelectionSelection Rules Cond Fouling FactorsSolution Sample SelectionLeaving Condenser Water Temperature F Ratings R-22 EnglishYCWS0200SC Leaving Condenser Water Temperature C Ratings R-22 SIYCWS0200SC Ratings- Brine 30 % Ethylene Glycol R-22 English 85.0 Ratings- Brine 30 % Ethylene Glycol R-22 SI 30.0 Ratings- Brine 30 % Propylene Glycol R-22 English YCWS0200SC Ratings- Brine 30 % Propylene Glycol R-22 SI YCWS0200SC Part Load Ratings COP Physical Data EnglishIsolator Selection Data ModelIsolator Details English Isolator DetailsIsolator Mounting Bracket Sound Data Dimensions English Dimensions Mounting Dimensions mm REF no Electrical Data System #1 Chiller VoltMIN NF MAX Dual Code CIR Disc SW Fuse RLA Model LRASystem #2 Chiller Volt Single Point Power Supply see & 11 , page 30 Incoming Wire Range Selections Single Point Power SupplyMultipoint Wiring System #1 Multipoint Wiring System #2 Customer Wiring Data Multipoint Power Supply Connection Standard UnitVoltage Code Typical Control Panel Wiring Form 201.24-EG1 Application Data Guide Specifications CompressorsCapacity Control System Refrigerant CircuitsPower Panel Microcomputer Control CenterForm 201.24-EG1 York International Form 201.24-EG1 Form 201.24-EG1 RPC 3M 701 New Release Codes DXS, ET

YCWS specifications

York YCWS, or York Chilled Water System, represents a revolutionary approach to modern commercial cooling solutions, offering efficiency, reliability, and sustainability. Designed specifically for large-scale applications such as industrial facilities, data centers, and office buildings, the York YCWS aims to optimize energy use while maintaining climatic comfort indoors.

One of the standout features of the York YCWS is its advanced chiller technology. Utilizing cutting-edge centrifugal chillers, the system maximizes cooling through a combination of high efficiency and low operational costs. These chillers operate with variable speed drives, allowing them to adjust their output based on the real-time cooling demand. This leads to significant energy savings, especially in fluctuating load conditions, and reduces wear on the equipment, extending its lifespan.

The YCWS also incorporates smart control systems that enhance its overall performance. These controls employ algorithms to anticipate system demands, dynamically balancing the load across multiple chillers and optimizing energy use throughout the day. Integration with building management systems (BMS) allows for seamless communication and remote monitoring, giving facility managers greater oversight and control over their cooling operations.

Sustainability is at the core of the York YCWS design. The system uses environmentally friendly refrigerants that comply with global standards for reducing greenhouse gas emissions. Additionally, the modular design of the chiller units allows for easy upgrades and expansions, accommodating growing cooling needs without necessitating a complete system overhaul. This flexibility supports a more energy-efficient and environmentally responsible operational model.

The system's footprint is relatively compact, allowing it to fit into tighter spaces typically found in urban settings. Furthermore, the YCWS is engineered for quiet operation, minimizing noise disturbances for occupants in and around the building.

Reliability is another key characteristic of the York YCWS. With a focus on durability and performance, these systems are built to function optimally in various environmental conditions. The robust construction and high-quality materials ensure long-term service, reducing the need for frequent maintenance and associated costs.

In summary, the York YCWS is not just a cooling solution but a comprehensive system that embodies modern engineering principles. Its efficiency, sustainability, and adaptability make it a preferred choice for industries looking to invest in their future. With its smart technologies and robust features, the York Chilled Water System is well-equipped to meet the demanding needs of today's commercial cooling challenges.