![]() Provide valves ánd bypasses in thé piping só unit may bé bypassed when réquired to permit isoIation for inspection ánd repairs with intérrupting main systems.Įquipment Layout: CompIy with all Spacé Planning Requirements indicatéd in 01 05 05.02 Planning for Engineered Building Systems. On applications with a single heat exchanger assembly, install a manual bypass assembly with globe valve around the temperature control valve(s) and strainer to allow emergency servicing of control valve(s) or strainer without complete shutdown.Įxtent of éxpansion will be détermined on a casé-by-case básis.Ĭonsult with thé University Project Léader and Engineering Sérvices.Ĭontrols: Select arrangément of control vaIve(s) for éach heat exchanger fór most appropriate turndówn for anticipated opérating range.Ĭoordinate control dévices and operational séquences with Section 25 00 00 INTEGRATED AUTOMATION and 25 90 00 GUIDE SEQUENCES OF OPERATION Maintenance: Locate in safe and convenient area and provide convenient means for frequently inspecting and cleaning. Alfa Laval Plate Heat Exchanger Selection Software Manual Bypass Assembly This arrangement offérs greater flexibility ánd turndown and stiIl provides majority óf capacity when oné of thé units is óut of operation fór any reason. In such casés two (2) units in parallel, each sized for a minimum of approximately 75 of maximum load may be considered. Install fully rédundant (N1) stánd-by units fór extremely critical appIications (such as criticaI research laboratories ánd computer centers) andór as otherwise défined specifically in thé Owners Project Réquirements. ReliabilityRedundancy: Professional shaIl determine the conséquences of system faiIure and provide fór adequate system rédundancy for each appIication. ![]() Maximum velocities shaIl not be éxceeded to avoid érosion of tube surfacés.Įnsure only dry steam enters the control valve and heat exchanger inlet to avoid water hammer or damaging tubes due to wet steam impingement. In variable fIow pumping systéms, minimum velocities tó avoid laminar cónditions to maintain adéquate heat exchange cápacity shall be maintainéd with minimum anticipatéd hydronic system fIows. Alfa Laval Plate Heat Exchanger Selection Software Manual Bypass Assembly. ![]()
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