HomeMy WebLinkAboutM502 VRF DetailsREFRIGERANTPIPING FROMOUTSIDE UNITOR INTERIORBRANCHSELECTORSLONG SWEEPELBOW ORLONG BENDOF SOFTCOPPER (TYP)TYPICAL VRV "REFNET"REFRIGERANT BRANCHPIPING DEVICE INSTALLEDIN A TRUE AND LEVELPOSITION PARALLEL TOCEILING BELOW OR FLOORSTRUCTURE ABOVELONG SWEEPELBOW ORLONG BENDOF SOFTCOPPER (TYP)TO FCU ORBRANCH BOXTO FCU ORBRANCH BOXTO FCU ORBRANCH BOXMIN. 40" BETWEENPIPE ACCESSORIESTHE REFNET KITS ARE SUPPLIED WITH INSULATION INTENDED TO FIT OVER THE MAIN BODY OF THE"REFNET" JOINT AFTER INSTALLATION OF THE "REFNET" KIT IS COMPLETE.IMPORTANT:IN APPLICATIONS WHERE THE "REFNET" KITS ARE INSTALLED IN AN ENVIRONMENT REQUIRING FIRE-RATEDMATERIAL TO BE USED, IT IS NECESSARY FOR THE INSTALLER TO OBTAIN FROM A THIRD PARTY SUPPLIERAND TO UTILIZE, FOR INSULATION, FIRE-RATED MATERIALS THAT MEET ALL APPLICABLE BUILDING CODESAND OTHER REQUIREMENTS. THE FACTORY SUPPLIED INSULATION SHOULD BE DISCARDED IN A MANNERMEETING ALL APPLICABLE LAWS.MIN. 20" BEFORE ELBOWMIN. 20" AFTER ELBOW"REFNET" (TYPICAL)"REFNET" (TYPICAL)NOTE:IN CASES WHERE PIPING/TUBING NEEDS TO DROP BELOWOBJECTS, (BEAMS, DUCTS, CONDUITS, PIPES ETC.) PIPINGSHALL HAVE LARGE RADIUS TURNS AS INDICATED ABOVE(NO MORE THAN 45 DEGREES PER FITTING) TO PREVENTTRAPPING OF REFRIGERANT.45 deg. MAX45 deg. MAX4" MAX4" MAXNOTE:CALCULATION FOR EXPANSION AND CONTRACTION SHOULD BE BASED ON THE AVERAGE COEFFICIENT OF EXPANSIONOF COPPER WHICH IS 0.0000094 INCH PER INCH PERDEGREE F, BETWEEN 70°F AND 212°F.(EXAMPLE: EXPANSION OF A 100 DEGREE F RISE FOR EACH100 FT. OF ANY SIZE IS 1.128 INCHES)EXPANSION DIMENSION "L" FOR OFFSET & RETURN TO BEBASED ON THE EXPECTED EXPANSION INCHES PERDIMENSION OF PIPEGUIDEBRACKETLENGTH "L" = INCHES OFFSET & RETURNSLEEVE"L"RECOMMENDED EQUIPMENT CLEARANCES:3" ABOVE12" ENTERING (3 PIPE)IN SPACE CONDITIONS THAT DO NOT ALLOW 3" ABOVE THEDEVICE, MAINTAIN A 1" AIR SPACE BELOW UPPER DECK ANDINSTALL 1/2" FOAM INSULATION ON THE TOP OF THE DEVICE.HANGERS (TYP)HANGERS (TYP)20" MINIMUM20" MINIMUMBRANCHSELECTORUNITHANGERS (TYP)TYPICAL FAN COILTYPICAL ALL FAN COIL UNITS20" MINIMUMCONTRACTOR TO INSTALL LINE SIZE SHERWOOD MODEL"WAS" REFRIGERANT SHUT-OFF VALVES WITH ACCESSFITTING. ALL VALVES SHALL INCORPORATE DUAL STEMSEAL DESIGN W/TEFLON PACKING INTERNAL PRIMARYSEAL. VALVE SHALL PERMIT OPERATION WITHOUTREMOVAL OF SEALS OR TEFLON GASKETS. PROVIDEW/INTERNAL BALL TYPE RELIEF PORT FOR DUALDIRECTIONAL SHUT-OFF. PROVIDE FULL FLOW PORTS ONALL SIZES 1/4" THROUGH 7/8". (NOTE: SHUT-OFF VALVESSHALL BE ZERO-CLEARANCE TYPE, ALL BRONZE, BRAZEDCONNECTIONS WITH 1/4" SCHRADER TYPE SERVICE FITTINGIN VALVE. TYPICAL FOR EACH LINE).NOTE: CONTRACTOR TO PROVIDE 5/16" THREADEDROD HANGERS WITH DOUBLE SIDED RUBBER (1/2"THICK) ISOLATORS AT EACH SUSPENSION BRACKET (4EACH) ON BRANCH SELECTOR FOR SUSPENSION OFUNITINSTALL BRANCH SELECTOR A MINIMUM OF 12"x 15-1/4"CLEAR FOR ELECTRICAL SERVICE TO ELECTRIC BOXSECTION(HP) LIQUID REFRIG. LINE(FROM OUTDOOR UNIT)(HP) HOT GAS REFRIG. LINE(FROM OUTDOOR UNIT)(LP) SUCTION REFRG.LINE (TO OUTDOOR UNIT)1/4" SERVICE FTG.(TYP) EACH VALVE(HP) LIQUID REFRIG. LINE (TOINDOOR UNIT)BRANCHSELECTOR UNIT(LP) SUCTION REFRIG. LINE(FROM INDOOR UNIT)ELECTRICAL BOXSECTION(ON SIDE OF UNIT)ENTRANCE SIDELEAVING SIDEALUMINUMJACKET OVERINSULATIONUNISTRUTPIPE CLAMPUNISTRUTSUPPORTREF. PIPE803573SNSEWYORKOFETAT SSOIANLEOFPRLI C E N S E DREENIGN ETRASS N EJ.CIRER EXCELSIOR°°°°°°°°DATE:PROJECT:OTHER:DRAWN BY:ABCDEFGABCDEFG1234567891012345678910ArchitecturePlanningInterior Design1112HI1112HI619 West State StreetIthaca, New York 14850132 E. Jefferson StreetSyracuse, New York 13202p 607 273 7600 www.holt.com2/10/2021 2:05:40 PMM502VRF DETAILS02/05/20212018089JCC, CTLCayuga Park, Ithaca, New York 14850Park Grove - Cayuga Medical CenterMEDICAL OFFICE BUILDING1DIAGRAM - REFNET PIPING CLEARANCE REQUIREMENTS7ELEVATION - PIPING OFFSET BELOW OBJECT5PLAN - EXPANSION LOOPS3RECOMMENDED PIPE CLEARANCES FOR BRANCH SELECTOR UNITS4RECOMMENDED PIPE CLEARANCES FOR INDOOR UNITS2TYPICAL BRANCH SELECTOR PIPING6REFRIGERANT PIPE UNISTRUT SUPPORTREVISION SCHEDULENAME DATEReceived by DiMarco 2/15/2021