Hvac sample chiller prepurchase guide specifications. The factory acceptance test fat is a process that evaluates the equipment during and after the assembly process by verifying that it is built and operating in accordance with design specifications. Factory acceptance test fat and site acceptance test sat. A chiller is a refrigeration system that cools water. Jul 04, 2012 summit matsu chillers engineer scott rollston talks us through the process of a factory acceptance test at summit matsu chillers alexandria chiller testing f. First showing how a rating software program might calculate an efficiency value, which is then rounded to the published rating value. Test system refrigerated recirculating fluid chillers air or water cooled low temperature chiller ott air or water cooled test chillers ott product information pdf in 1998 opti temp introduced the concept of providing accurate, controlled temperature on the spot at the test site as a convenient alternative to temperature chambers and. Sat site acceptance test site acceptance tests are done at the specific places where commissioning is done. Predictive and diagnostic services johnson controls. Letter of authorization ahri selection letter, refer to section 3.
Operational testing is applied in a specified environment during various software development life cycle sdlc phases for. Relying on our innovative and environmentalfriendly technology, broad u. This practice describes the minimum requirements for the performance, design, fabrication, testing, inspection, and preparation for shipment of packaged, skidmounted industrial process refrigeration systems. Moisture in a chiller also can create acids that corrode motor windings and bearings and create rust inside the shell.
A general description of the test procedure based on the system specifica. This practice is not intended to cover commercial or absorption chiller. In engineering and its various subdisciplines, acceptance testing is a test conducted to determine if the requirements of a specification or contract are met. Hvac sample chiller prepurchase guide specifications 2364143 chiller prepurchase generic state facility frankfort, ky file no. Review on testing procedures and quality standards for. Factory testing also verifies the preinstallation quality of the chiller, helping ensure a troublefree startup. One chiller manufacturer estimates that 1 psi of air in a condenser equates to a 3 percent loss in chiller efficiency. Refrigeration and air conditioning systems inspection and. The fat will help you visually guarantee your equipment meets the specifications of the purchase order p. Adjust the set point values in the ucm menus as described in the operation manual. Small rust particles called fines float in the vessels and get trapped inside heatexchanger tubes. The vendor tests the system in accordance with the clients approved test plans and specifications to show that the system is at a point to be installed and tested on site. Testing power consumption cooling capacity of chillers at bsrias unique high.
A chiller is a refrigeration system that cools a process fluid typically water, which in turn is used in commercial and industrial facilities for process cooling or airconditioning. All parties during the testing of the acceptance test should be familure with the interface for reportal and basic understanding of how reportal works. This test is done on the system within its season of operation. Fouling impedes heat transfer and makes the chiller work harder. Once cooled, chilled water is used in airconditioning applications for coolingdehumidification and. Factory acceptance tests a winning combination for. Testing equipment for fullcapacity production is reserved for sat. An autoclave undergoes qualification testing in order to validate and verify that its performing consistently and properly. Testing at more diffi cult operating conditions to account for clean tubes. In systems engineering it may involve blackbox testing performed on a system prior to its delivery. Hvac chiller systems handbook pdf a free and simple book introducing hvac chillers download free mep calculation excel sheets, autocad drawings, and training courses for hvac, firefighting, plumbing and electrical systems design.
Occupational health and safety regulations, and iec 60335 are the considered guidelines for electrical safety testing. The nucmagnum controller utilizes various temperature, pressure, flow and current sensors to implement effective chiller control. When setting up for a trip to witness test an aircooled chiller for ahri certification programs, several information items are required. The main purpose of this test is to evaluate the systems compliance with the business requirements and verify if it is has met the required criteria for delivery to end users. The steps to check for crosscircuit or external gasket leaks are listed here. Electric installation inspection, testing, certification.
Commissioning chilled water systems from design to occupancy. Other voltages can be tested, but would require a generator at a rental fee. Action will be taken reactivly as problems arise during the testing phase. Aircooled chillers may last 20 years while watercooled chillers may last 23 years or more. In these slides, i discussed performance test codes for major district c. Poor installation, internal machine defects, or other problems that develop over time can create barelynoticeable, yet damaging, vibrations. Electricity safety testing electrical safety testing is crucial to ensure secure operating standards for any product that utilises electricity. Our refrigerant testing services meet all analytical provisions mandated in section 608 of the clean air act. The liquid and suction lines must be sealed to isolate the chiller barrel.
Factory acceptance test fat and site acceptance test sat work. Mar, 2018 hvac chiller systems handbook pdf a free and simple book introducing hvac chillers download free mep calculation excel sheets, autocad drawings, and training courses for hvac, firefighting, plumbing and electrical systems design. Summit matsu chillers engineer scott rollston talks us through the process of a factory acceptance test at summit matsu chillers alexandria chiller testing facility. A commits itself to optimize energy efficiency for clients in. A certain amount of fouling will occur on the walls of the tubes after the chiller is operating. Uns chiller plant utilizes condenser water by two methods. The purpose of this test procedure is to describe instrumentation and procedures for testing and performance. Todays buildings provide highly controlled indoor environments. Conducted at the manufacturers site prior to delivery and installation, these tests help to. It may involve chemical tests, physical tests, or performance tests. Precommissioning precommissioning activities are site acceptance tests sat and factory acceptance tests fat as well as other similar activities.
Air cooled chiller commissioning method statement cxapp. Review on testing procedures and quality standards for thermally driven chillers 4 of 30 the system boundary denominated with cop, eer, scop and seer takes into account only the net useful energy output and energy consumption of the heat pump or chiller unit, in some cases including the. Cooling tests in summer and heating tests in the winter. Section 15681a centrifugal liquid chiller maintenance and inspection report general. Refrigeration chiller systems principles, applications. The tests are normally executed during the final part of the design and engineering phase before the final installation at the plant. All the testing and commissioning work shall be done in accordance with mechanical specification and in accordance with the manufacturers instructions. Testing your chiller in the factory confirms that the actual chiller performance matches the predicted performance, and the results serve as a benchmark during the commissioning process. A commits itself to optimize energy efficiency for clients in commercial, civil and industrial markets. Large capacity chillers for specific project applications up to 1. Project managers of the food and pharmaceutical industry have been through the same scenario time and time again. Hot test for dispensing systems activity source supplied by. Acceptance testing, a testing technique performed to determine whether or not the software system has met the requirement specifications.
Tubes in the chiller serve as the heat transfer surface. Summit matsu chillers engineer scott rollston talks us through the process of a factory acceptance test at summit matsu chillers alexandria. Acceptance test procedure shall cover the determination of thermal capability and verification of all guarantee of the cooling tower s supplied for the project. The goal of operational testing is to ensure smooth system operation in its standard operating environment soe. The sat site acceptance test will include the following tests. A fat or factory acceptance test is usually performed by the vendor prior to shipping to a client. It is best if all utilities are installed and ready for use. Watercooled chillers typically last longer than aircooled chillers. Identify resources available to support functional testing of lighting systems. Field chiller barrel gasket leak tests if you suspect that you have leaking chiller gaskets, this must be verified by testing the unit. Water can be cooled to temperatures as low as 5c 40f and pumped through a hydraulic circuit to reach the process equipment or the air handling units. Acceptance testing is a level of software testing where a system is tested for acceptability. Easily prove equipment reliability and prevent costly project delays. Prior to starting the chiller all electrical works related to supply of power to the equipment should be tested.
Foreword the purpose of the nebb procedural standards for testing adjusting and balancing of environmental systems is to establish a uniform and systematic set of criteria for the performance of the testing, adjusting and balancing of environmental or heating, ventilating and airconditioning hvac systems. This method statement is applicable for the installation, startup, testing and commissioning of air cooled. Soak testing is a type of non functional testing that measures a systems perfomance under a huge volume of load for an extended period of time. The purpose of this test is to evaluate the systems compliance with the business requirements and assess whether it is acceptable for delivery. Cgd efforts occurred both in paragons lab and during functional acceptance testing at the manufacturer. Process and cooling water testing eurofins scientific. In previous posts, we outlined the first two qualification tests known as installation qualification iq and operation qualification oq. This may be accomplished by having the testing perfonned by the vendor or the user, ora combination of the two. Fat ensures that the components and controls are working properly according to the functionality of the equipment itself. Below is detailed method statement for testing and commissioning of chiller. Test system refrigerated recirculating fluid chillers air or water cooled low temperature chiller ott air or water cooled test chillers ott product information pdf in 1998 opti temp introduced the concept of providing accurate, controlled temperature on the spot at the test site as a convenient alternative to temperature chambers and baths. Allow the chiller to run for approximately 60 minutes to stabilize the operation of chillers. Operational testing refers to the evaluation of a software application prior to the production phase.
What are the process in factory acceptance testing. Performance test codes for district cooling slideshare. Trane mytest watercooled chiller performance validation. The main objective of the fat is to test the safety instrumented system logic solver and associated software together. Commissioning chilled water systems from design to. If left unchecked, structurerelated problems can reduce productivity, safety, quality, and comfort.
General specification for airconditioning, refrigeration, ventilation and central. System component part i mechanical systems part ii electrical systems technical section testing tools equipment clamp on meter amp meter electronic leak detector electronic thermometer all test. Pc based selection rating software either a personal computer. In software testing the istqb defines acceptance testing as. What is factory acceptance testing, and how is fat done carelabs. Factory acceptance tests a winning combination for the buyer. The development and execution of functional tests for.
Thats what factory acceptance tests, or fats, are for. Operational acceptance testing oat is a software testing type, which evaluates operational readiness for a software application prior to the release to the production. Seasonal testing should be done on heating and cooling systems. After ensuring for proper interlocks, start the chiller. Factory acceptance tests a winning combination for the buyer and seller by greg jacob, general manager, allpax products, inc. This was a new design and required seismic as well as electromagnetic compatibility testing on a qualification specimen prior to completion of cgd activities. Chiller selection of chillers chillers are selected on software programs which. Sensors may be analog or digital and may be supplied by mcs, the chiller manufacturer, pmt or the customer. The industrys most advanced and comprehensive chiller testing facility is capable of efficient, customizable testing for virtually any watercooled chiller from virtually any manufacturer. Scope of work testing and commissioning of chillers as per specification, and in accordance with the manufacturers instructions. Factory acceptance testing fat at the manufacturers facility, therefore, will determine a piece of equipment can operate at the desired capacity without actually testing it at full capacity. Factory and site acceptance testing guide for pharmaceutical.
Move the chiller switch on microprocessor control panel on chiller panel to stopreset position. Describe process for creating a functional tests using the functional test guide and blank functional test template. Apply essential elements of a control design that is prescriptive. Factory acceptance testing fat and site acceptance testing sat are essential when it comes to ensuring that your equipment was built to last. Operational testing ensures system and component compliance in the applications standard operating environment soe. A factory acceptance test better known as a fat is scheduled at the fabrication plant in which all purchased equipment will be. Discuss specific aspects of lighting functional tests for schedule controls, occupancy sensors and daylight controls. The purpose of this test is to evaluate the systems compliance. The fat should include testing of all hardware components and software in the system. Jul 20, 2000 field chiller barrel gasket leak tests if you suspect that you have leaking chiller gaskets, this must be verified by testing the unit.
The main objective of the fat is to test the safety instrumented system logic solver and associated software. These tests are also done to make sure that certain requirements and a high quality are met amongst abbs projects and to offer customers quality testing and. The test loop water temperatures are precisely controlled to simulate realworld conditions. Low temperature chillers for testing test system chillers. Formal testing with respect to user needs, requirements, and business processes conducted to determine whether.
Verify the following information as received from ahri. Trane is leading the industry with the most comprehensive watercooled chiller testing facility, capable of evaluating the performance of watercooled chillers from trane and virtually any other chiller manufacturer based on customerdefined parameters, including building type, geographical location and application requirements. Commissioning the optimized chilled water plant janelle h. The purpose of soak testing is to find whether the system will stand up to a very high volume of usage and to see what would happen outside its design expectations. This may be attributable to the fact that watercooled chillers are installed indoors, and most aircooled. These tests are also done to make sure that certain requirements and a high quality are met amongst abbs projects and to offer customers quality testing and documents. Where previously, the testing of large chillers was only available in the us, the test facility at bsria now offers manufacturers and clients to have the testing done in the uk enabling the whole project team to work together to achieve the objectives. Summit matsu chillers engineer scott rollston talks us through the process of a factory acceptance test at summit matsu chillers alexandria chiller testing f. Commercial grade dedication custom replacements paragon. There is the issue of fan coil units and heat pumps operating in the shoulder season. Setting to work is a potential fourth category, but may be included under inspection or testing as needed.
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