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PREMIER SERIESELDERLY HOUSING SIZINGJob Site Information:Present Water Heating EquipmentWH-7CNumber ofApartmentsMake and ModelStorage Volume Gal.RecoveryFuelBoiler Make and ModelBTU’sAvg. Boiler Water Temp.Feet "1 1/4"1 1/2"1 1/2"2"WHS-60CZDWNumber ofApartmentsNo. ofWHS-60CZDWFlow(GPM)Feet ofHeadSizeManifold12345102131425220202020201"1 1/2"1 1/2"2"2v2-1617-7071-115116-160161-200Circulator Make and ModelControlAre there any problems with the present hot water?For number of 60C’s, y .043T 1.62 (note: round down)Will new boiler be installed?WHS-80CZDWFor hot water only?Number ofApartmentsIf no, will old boiler be used for both hot water and heat?No. ofWHS-80CZDWFlow(GPM)Feet ofHeadSizeManifold123410213142202020201"1 1/2"2"2"2-2223-104105-164165-230*If for hot water and heating, what is the space heating load?BTU’sSizing InformationInput:For number of 80C’s, y .038T 1.52 (note: round down) Number of Apartments, AWHS-120CZDW Average number of People per Apartment, PNumber ofApartmentsSizing Commercial Premier Modules forElderly Housing Determine usage as minimal, 11/4 persons with private kitchen facilities; or average,11/2 persons and/or with central dining facilities. Select proper number of WH-7C modules from Table 1 and therequired heat generator capacity from Figure 1. Feet of Head Size ManifoldFlow(GPM)Feet ofHeadSizeManifold123410213142202020201"1 1/2"2"2"For number of 120C’s, y .023T 1.63 (note: round down)800Required MBHInput to Premier Units Flow (GPM)No. ns: Number Models3 4For number of 7C’s, y .053T 1.7 (note: round down)Recirculating Line 50Type of Heater: o Instantaneous o Indirect o Direct FiredOperating Temp.No. ofWH-7CFigure 1. Required Heat Generator Capacity - MBH600eagUsgeeraAv40020004080120160Number of Housing Units2002402801400 Division Road, West Warwick, RI USA 02893T: 800.426.8765 www.amtrol.com 2019 Worthington Industries Inc.MC6106 Part #: 9040-572 (06/19)

PREMIER SERIESAPARTMENT HOUSE SIZINGJob Site Information:Present Water Heating EquipmentWH-7CNumber ofApartmentsNo. ofWH-7CFlow(GPM)Feet 5671421283542202020202020/"1"1 1/4"1 1/2"1 1/2"2"Type of Heater: o Instantaneous o Indirect o Direct FiredMake and ModelStorage Volume Gal.RecoveryFuelOperating Temp.For number of 7C’s, y .053T 1.7 (note: round down)Boiler Make and ModelWHS-60CZDWBTU’sAvg. Boiler Water Temp.Number ofApartmentsNo. ofWHS-60CZDWFlow(GPM)Feet 31425220202020201"1 1/2"1 1/2"2"2"Recirculating Line SizeCirculator Make and ModelControlAre there any problems with the present hot water?Options3 4For number of 60C’s, y .043T 1.62 (note: round down)Will new boiler be installed?WHS-80CZDWFor hot water only?Number ofApartmentsNo. ofWHS-80CZDWFlow(GPM)Feet 02020201"1 1/2"2"2"If no, will old boiler be used for both hot water and heat?*If for hot water and heating, what is the space heating load?BTU’sSizing Commercial Premier Modulesfor Apartment Buildings Determine whether the apartment building usage should beclassified as minimal, small shower head, 2 to 3 GPM,21/2 persons average occupancy; or average regular showerheads, 4 to 6 GPM, 3 to 4 persons per apartment. Select proper number of WH-7C modules from Table 1 and therequired heat generator capacity from Figure 1.Recommendations: Number Models Flow (GPM) Feet of Head Size ManifoldFor number of 80C’s, y .038T 1.52 (note: round down)WHS-120CZDWNumber ofApartmentsNo. ofWHS-120CZDWFlow(GPM)Feet ofHeadSizeManifold123410213142202020201"1 1/2"2"2"2-1617-6263-105106-150For number of 120C’s, y .023T 1.63 (note: round down)Figure 1. Required Heat Generator Capacity - MBH800Required MBHInput to Premier UnitsSizing InformationInput: Number of Apartments, A Average number of People per Apartment, P600aerAv400geeagUs200020406080100Number of Apartment Units1201401400 Division Road, West Warwick, RI USA 02893T: 800.426.8765 www.amtrol.com 2019 Worthington Industries Inc.MC6107 Part #: 9040-573 (06/19)

PREMIER SERIESMOTEL SIZINGJob Site Information:Present Water Heating EquipmentType of Heater: o Instantaneous o Indirect o Direct FiredMake and ModelStorage Volume Gal.RecoveryFuelOperating Temp.Boiler Make and ModelBTU’sAvg. Boiler Water Temp.Recirculating Line SizeCirculator Make and ModelControlAre there any problems with the present hot water?OptionsWill new boiler be installed?For hot water only?If no, will old boiler be used for both hot water and heat?*If for hot water and heating, what is the space heating load?BTU’sSizing InformationInput: Number of Rooms, A Average number of Occupants per Room, PSizing Commercial Premier Modules for Motels Determine whether the motel should be classified asminimal, small shower head, 11/2 persons typical occupancy;or average, regular shower heads 4-6 GPM, 2 persons perroom (convention motel with scheduled meetings or tourbuses with scheduled departures). Select proper number of WH-7C modules from Table 1and the required heat generator capacity from Figure 1.WH-7CNumber ofRooms Flow (GPM) Feet of Head Size ManifoldFeet "1 1/4"1 1/2"1 1/2"2"3 4For number of 7C’s, y .053T 1.7 (note: round down)WHS-60CZDWNumber ofNo. )Feet ofHeadSizeManifold102131425220202020201"1 1/2"1 1/2"2"2"12345For number of 60C’s, y .043T 1.62 (note: round down)WHS-80CZDWNumber ofNo. ofRoomsWHS-80CZDW2-1415-4849-8081-115Flow(GPM)Feet ofHeadSizeManifold10213142202020201”1 1/2”2”2”1234For number of 80C’s, y .038T 1.52 (note: round down)WHS-120CZDWNumber ofNo. eet ofHeadSizeManifold10213142202020201”1 1/2”2”2”1234For number of 120C’s, y .023T 1.63 (note: round down)Figure 1. Required Heat Generator Capacity - MBH800Required MBHInput to Premier Units Number ModelsFlow(GPM)2-56-2526-4445-6364-8283-100 Laundry and food service are not included, these loadsshould be calculated separately.Recommendations:No. ofWH-7C600eagerAv400eagUs2000255075100Number of Units1251501751400 Division Road, West Warwick, RI USA 02893T: 800.426.8765 www.amtrol.com 2019 Worthington Industries Inc.MC 6108 Part #: 9040-574 (06/19)

PREMIER SERIESCOIN OPERATED LAUNDRY SIZING Sizing InformationMachineType/ModelQuantityGallonsPer CycleCycle PerHour*xxxxxTotal #MachinesGallonsPer Hourxxxxx Total GalsTotal GPH Load**Per Cycle* If Cycle Per Hour Date is not available, use 1.5.** Calculation based on a 40 F inlet water temperature.Use the correction factors on the right for other inlet water temperatures:Corrected TotalInlet Water TemperatureMultiply Total GPH Load by:50 F60 F70 F0.900.800.70 Determining Storage VolumeSizing Commercial Premier forCoin Operated Laundry1200Figure 1. For Required MBTU/hr6Diversification TableFactor (D.F.)1-1213-2425-3637-48100%80%60%50%Calculation: Total Storage RequiredTotal gals/cycle x D.F.580046003400Number of UnitsTotal No. Machines1000Required M BHInput to Premier UnitsThe number of machines drawing water at any one time varies widely.From the table below, determine the applicable diversification factorto use for this application.22001Selection of ModelsCalculation: Total Storage Number of Units Storage Tank GallonStorage Tank GallonPremier Models0-4142-6061-8081-120120 8001000120014001600Total GPH LoadSizing based on recovery from 50 to 150 F plus storage.BTU/hrNumber of TanksModel Number1400 Division Road, West Warwick, RI USA 02893T: 800.426.8765 www.amtrol.com 2019 Worthington Industries Inc.MC6111 Part #: 9040-576 (06/19)

PREMIER SERIESHEAT GENERATOR / SPACE HEATING SIZINGIntroductionThere are two installation conditions that must be considered whensizing a heat generator/commercial Premier installation:A. When the heat generator is to work with the Premier to provideservice hot water load only.B. When there are commercial applications that require sizing theheat generator for the combined space heating and servicehot water loads the heat generator must be large enough toaccommodate both loads. However, since both peaks do notoccur simultaneously, it is advantageous to take diversity factorsinto consideration in sizing, since unnecessarily large equipment iswasteful of energy.The following guide will provide a “rule of thumb” method of estimationthe additional heat generating capacity required for service hot waterheating on typical Premier installations.NOTE: This guide is to be used in conjunction with Figure 1 fromAMTROL’s Commercial Evaluation and Sizing Forms for:1. Apartment Houses 2. Motels 3. Nursing Homes 4. Coin Operated LaundryPREMIER SUPPLYPREMIERPREMIERPREMIERPREMIER returnTYPICAL MODULAR INSTALLATIONA. Service Hot Water Load OnlyThe heat generator installed to take care of the service hot water load only must meet the minimum capacity shown in the Evaluation andSizing Forms for the particular application.B. Space Heating and Service Hot Water Loads CombinedThe factors which affect sizing for this type of installation are:1. The piping and pickup losses which are typically applied when a boiler is installed only for space heating.2. The number of hours of occurrence of temperatures anywhere near design temperatures for space heating represent an extremely lowpercentage of the total hours in the heating season.3. The maximum space heating requirements do not occur at the time of day when the maximum peak service demands occur.4. Service hot water heating equipment must be sized to supply the maximum rate of use for various periods of time from a few minutesto any hour or longer, and since these periods differ from day to day, and from month to month, the design capacity is significantlygreater that that required for the vast majority of hours of service hot water usage.Rule-of-Thumb Estimating MethodThe factors shown provide a “rule-of-thumb” method for estimating the additional heat generating capacity required for service hot waterheating on typical installations. The first is to calculate the ratio of maximum service hot water load to the gross output for space heating(including the normal allowance for piping and pickup). From Figure 2 determine the equivalent factor - this is multiplied by the service hotwater load, and the product added to the gross space heating load, to determine the total heat generator capacity.EXAMPLE: 50 unit apartment, gross output required for space heating is 1,100,000 btu/h. Service hot water usage is minimal.From Figure 1, Curve I, required for capacity for service hot water 330,000 btu/hThe ratio of service hot water capacity to gross space heating capacity:Step 1.Step 2.RATIO.25FACTORMaximumStep 3.Step 0.85.90.951.0service hot water load 333,000 0.3Figure 2Gross space heating1,100,000From Figure 2, factor 0.20.2 x 330,000 66,000 btu/hSize of heat generator for combined service hot water and space heating loads:1,100,000 66,000 1,166,000 btu/h1400 Division Road, West Warwick, RI USA 02893T: 800.426.8765 www.amtrol.com 2019 Worthington Industries Inc.MC6112 Part #: 9040-577 (06/19)

Apartments WHS-60CZDW (GPM)Avg. Boiler Water Temp. Head Manifold 2-16 1 10 20 1" 17-70 12 21 20 1 /2" 171-1153 31 20 1 Control /2" 116-1604 42 20 2" 161-2005 52 20 2v For number of 60C's, y .043T 1.62 (note: round down) WHS-80CZDW Number of No. of Flow Feet of Size Apartments WHS-80CZDW (GPM) Head Manifold 2-22 1 10 20 1"