Parker ADAPTOMODE Series Installation And Service Information

Parker ADAPTOMODE Series Installation And Service Information Manual pdf 1 page image

Refrigerating Specialties Division 1BULLETIN DN23-07BType A4AO-DN, A4AOE-DN,A4AOS-DN, A4AOES-DNJanuary 2007Installation and Service InformationADAPTOMODE® OUTLETPRESSURE REGULATORSTypes: A4AO-DN, A4AOE-DN,A4AOS-DN and A4AOES-DNPort Size 20 - 100 mm (3/4" - 4")FOR AMMONIA, R-12, R-22, R-502OTHER REFRIGERANTS AND OILFEATURES• Pilot operated characterized Modulating Plugprecise control• Suitable for all common refrigerants and oil• 28 bar (406 psig) design pressure (PS)• Flanges for threaded or welded steel pipe andcopper tube (copper not for ammonia)• Interchangeable parts• Easy to service• Close coupled strainers, optional• Stainless Steel Diaphragm• Stainless Steel Pilot Seat• Manual Opening Stem• Complies with Pressure Equipment Directive97/23/ECDescriptionThese compact, heavy duty, pilot operated, Outlet Pressure regulatorsare suitable for Ammonia, R-12, R-22,R-502 and other common refrigerants and fluids approved for use inrefrigerant valves.PurposeModulates flow of refrigerant gas or liquid to maintain a constantdownstream pressure as set-for, despite fluctuations in load. The regulatorwill gradually close when downstream pressure begins to rise above thesetting and will gradually open when pressure begins to fall below thesetting. The regulator cannot maintain set-for pressure if uncontrolledbranch pipe lines feed into the main pipeline downstream of the A4AORegulator. Typical uses are as follows:Protect Compressor Motor from Overload (Hold-back): See capacityratings in Condensed Catalog CC-11. Select at design parameters i.e.,tons, evaporator temp./press and pressure drop.Hot Gas Bypass Capacity Control: See Bulletin BYG-4, CondensedCatalog CC-11.Limit Refrigerant Pressure in a Liquid Line: Contact factory for selectionassistance.Prevent Deep Vacuum in Booster Suction: See capacity ratingsCondensed Catalog CC-11 “Compressor Suction Loading”. For selectionsother than those shown, contact factory.Prevent Pressure Rise in Suction Main: Select valve based on massflow requirements. Valve Cv and pressure drop across regulator. Contactfactory for proper selection assistance, if required.Hot Gas Defrost Control: Refer to Condensed Catalog CC-11 andBulletin 90-10 for ratings and application information.All A4 Regulators are pilot operated using upstream pressure for theopening force and requires a minimum 0.14 bar (2 psig) pressure dropto fully open.These valves are generally ordered with close coupled strainer to prevententrance of foreign material into the valve and the rest of the system. (Seecurrent Bulletin DN00-10 for strainer information.)The fluid temperature range for the A4 Series of Regulators is -45°C to105°C (-50°F to 220°F).I S O 9 0 0 1 C E R T I F I E DA4AO-DN A4AOS-DN310215PILOT PLUG