water-cooled screw chiller YEWS-DOn the coverIntegrated professional services designed for your unique business needs.We care about your business and understand that every organization has its unique requirements. Our comprehensive maintenance package is tailor-made to fit all financial and technical needs.It covers everything from planned routine equipment inspections and predictive maintenance routines to system performance checks andannual shutdowns.3Water-cooled Screw Chiller - YEWS SeriesYEWS-D Series is newly developed water-cooled screw chillers using HFC-134a refrigerant. Its industrial semi-hermetic twin-screw compressor ensures high energy efficiency and long service life.With high efficiency flooded evaporator, its COP value leads the industry. Besides, its high-efficiency compressor starts at the minimum load position and provides a 12.5%-100% capacity control range through a continuous function slide valve, maximizing load efficiency and energy savings.Equipped with advanced fuzzy logic controls, the microprocessor control system is allowed to monitor key variables andaccurately anticipate the chiller operation, thus provide tight and precise control. The control system is the most advanced of all competing models. The microprocessor can be connected to Building Automation System via MODBUS Protocol. Ensuring operator safety, its power panel is separated from its control panel and is armed with an emergency stop. The packaged chiller is designed with a compact footprint which greatly reduces installation costs. The chillers compact footprint makes it ideal for retrofit.AHRI Certification ProgramThe performance of YORK YEWS200 andYEWS250 chillers has been certified to the Air Conditioning and Refrigerant Institute (AHRI)as complying with the certification sections of the latest issue of ARI Standard 550/590.Under this Certification Program, chillers are regularly tested in strict compliance with this Standard. This provides an independent, third-partyverification of chiller performance.12.5% 4510 67fouling factor 0.04403m².°C/kW.2. Star Delta open starting.3. Two passes for all mode heat exchangers, but four passes for YEWS100 evaporator.4. “XX“ in model is power supply code, and it can be 50,53 or 55.2. The above A/C condition: Chilled water ebtering/leaving temperature 7/12°C Condenser cooling water entering/leaving temperature 30/35°C.3. The concentration of ethylene glycol (EG) in the evaporator is 25%, fouling factor is 0.01761m².°C/kW; Condenser cooling water fouling factor 0.04403m².°C/kW.4. Three passed for all model evaporators, and two passes for all model condensers, but four passes for YEWS100 evaporator and 2 passes YEWS250 evaporator.5. “XX“ in model is power supply code, and it can be 50,53 or 55.Operation Range I based on 5°C water temperature approach for both chilled and cooling water.I ----AC unit standard full load operation II ----Extra full load operation range after equiped with three-way valve to maintain the required condenser pressure.Operation Range I based on 5°C water temperature approach for both chilled and cooling water under AC mode.I ----ITS unit standard full load operation II ----Extra full load operation range after equiped with three-way valve to maintain the required condenser pressure.520518304025304020101015-6.525159I II157373501015C o o l i n g W a t e r T e m p I N -°CC o o l i n g W a t e r T e m p I N -°CC o o l i n g W a t e r T e m p I N -°CC o o l i n g W a t e r T e m p I N -°CChilled Water Temp OUT-°CChilled Water Temp OUT-°CAC chiller operation RangeITS unit operation Range8Electric DataWater Pressure DropFlow Rate (L/S)Flow Rate (L/S)E v a p o r a t o r W a t e r P r e s s u r e D r o p (k P a )C o n d e n s e r W a t e r P r e s s u r eD r o p (k P a )9DimensionsYEWS100/130/170/200SA-D , YEWS100DA-DYEWS130/170/200DA-DYEWS250SA/DA10Sketch Map11© 2009 Johnson Controls, PUBL-5211(1109)Johnson Controls is the global leader that creates smart environments – bringing ingenuity to the places where people live, work and travel.Johnson Controls Building Efficiency business enables safe, comfortable, energy efficient and sustainable facilities.We are a single source of integrated heating/cooling, controls, lighting, fire, security and wireless infrastructure products for buildings and industrial plants. And our comprehensive life-cycle approach to in-building technology and operations includes planning and design, installation and integration optimization and maintenance as well as integrated real estate and facility management services. To us, sustainability matters at every level. Our triple bottom line - Economic Prosperity, Environmental Stewardship and Social Responsibility - and every facet of our operations and community involvement are geared to the efficient use of resources to benefit the planet and people all over the world.For example, in conjunction with the US Energy Association, Johnson Controls helped to launch the Annual Energy Efficiency Forum. We are also a lead technology and energy-efficiency partner for the Clinton Climate Initiative and its ambitious C40 Large Buildings Retrofit Program. And, building on our unparalleled expertise in LEED (Leadership in Energy Environment Design) rating and certification, Johnson Controls is supporting a growing number of green building projects across Asia.Today Johnson Controls’ solutions are playing a key role in the region’s LEED-certified buildings, including India’s ITC Green Centre and Nokia’s Greater China headquarters complex in Beijing. They can also be found in some of the world’s tallest buildings - Taipei 101, Shanghai World Finance Center and Petronas Towers, Kuala Lumpur.Our network of more than 150 sales and support centers with more than 10,000 dedicated professionals located in 15 countries and regions has made us the partner of choice for some of the most recognizable structures in Asia and the Pacific, including many of the iconic stadiums used in the 2008 Beijing Olympics. Asia Factories: Guangzhou & Wuxi, China · Pune, IndiaAsia Engineering Centre: Wuxi, ChinaAsia Centre of Excellence in Engineering (CoEE): Beijing, China · Mumbai & Pune, IndiaAsia Centre of Engineering & Technology (CET): Hong KongAsia Parts & Product Hub: Shanghai, ChinaTaiwan Tel : +886 (2) 2657 5568Fax: +886 (2) 2657 6388Malaysia Tel : +60 (3) 7628 4300Fax: +60 (3) 7874 1180Indonesia Tel : +62 (21) 626 3535Fax: +62 (21) 659 8875Australia Tel : +61 (2) 9805 8300Fax: +61 (2) 9247 7750Asia Headquarters20/F, Tower 1, 2 & 3, Enterprise Square1, 9 Sheung Yuet Road, Kowloon Bay,Kowloon, Hong KongTel : +852 2590 0012Fax: +852 2516 5648Thailand Tel : +66 (2) 717 0751Fax: +66 (2) 717 0750New Zealand Tel : +64 (9) 444 6434Fax: +64 (9) 444 2092Japan Tel : +81 (3) 5738 6100Fax: +81 (3) 5738 6298China (Shanghai)Tel : +86 (21) 6276 6509Fax: +86 (21) 6277 3543VietnamTel : +84 (8) 526 1205Fax: +84 (8) 526 1206 PhilippinesTel : +63 (2) 706 1420-22Fax: +63 (2) 706 1486KoreaTel : +82 (2) 554 5935Fax: +82 (2) 554 5739Hong KongTel : +852 2590 0012Fax: +852 2516 5648Singapore Tel : +65 6748 0202Fax: +65 6283 3015Macau Tel : +853 2875 1820Fax: +853 2875 1821India Tel : +91 (22) 3082 0391Fax: +91 (22) 3088 1592。
