ALPHA - Grundfos
GRUNDFOS DATA BOOKLETALPHAPumps and accessories
ALPHATable of contents1.Product data . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Product introductionApplications . . . . . .Features . . . . . . . .Pumped liquids. . . .2.3567Performance range . . . . . . . . . . . . . . . . . . . . . 8ALPHA2 15-55 performance range and operatingmode selection . . . . . . . . . . . . . . . . . . . . . . . .ALPHA1 15-55 performance range and operatingmode selection . . . . . . . . . . . . . . . . . . . . . . . .ALPHA2 26-99 performance range . . . . . . . . . .ALPHA1 26-99 performance range . . . . . . . . . .ALPHA 15-55 HWR-D performance range . . . . .3.8.9101112Product range. . . . . . . . . . . . . . . . . . . . . . . . . 13Product range. . . . . . . . . . . . . . . . . . . . . . . . . . . 13Competitor cross reference . . . . . . . . . . . . . . . . . 154.Identification. . . . . . . . . . . . . . . . . . . . . . . . . . 16Nameplates . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Type keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175.Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Operating conditions . . . . . . . . . . . . . . . . . . . . . . 18Control modes . . . . . . . . . . . . . . . . . . . . . . . . . . 216.Technical data . . . . . . . . . . . . . . . . . . . . . . . . 25ALPHA2 15-55 . . . . . .ALPHA1 15-55 . . . . . .ALPHA 26-99 models .ALPHA 15-55 HWR-D .Materials . . . . . . . . . .Approvals . . . . . . . . .7.252526262727Dimensions and weights . . . . . . . . . . . . . . . . 29ALPHA2 15-55 . . . . . .ALPHA1 15-55 . . . . . .ALPHA1 26-99 . . . . . .ALPHA2 26-99 . . . . . .ALPHA 15-55 HWR-D .8.2930313233Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . 34Accessories for ALPHA . . . . . . . . . . . . . . . . . . . . 342
1Product dataALPHA1. Product data1.1 Product introductionGrundfos ALPHA circulators are medium-sized, speedcontrolled, high-efficiency pumps fitted with an electronicallycommutated motor with permanent-magnet rotor andvariable frequency drive. Grundfos ALPHA circulators aredesigned for domestic building applications such as: circulating liquids in heating systems hot water recirculationThe canned-rotor type pump and motor form an integral unitwithout a shaft seal with two gaskets for sealing and fourscrews for fastening the stator housing to the pump housing.The bearings are lubricated by the pumped liquid.TM074558 air conditioning and cooling systems.ALPHA1 15-55ALPHA1 15-55ALPHA1 15-55 features: Three constant pressure control modes. An energy-efficient replacement for older circulatorpumps. User-friendly front-mounted user interface. Easy installation and start-up. High degree of comfort.TM074556 Minimum noise from valves, etc. Low energy consumption compared to conventionalcirculator pumps.ALPHA2 15-55ALPHA2 15-55ALPHA2 15-55 features: Three constant pressure modes Three constant curve modesThe AUTOAdapt function continuously adjusts the pumpperformance to the actual heat demand, i.e. the size of thesystem and the changing heat demand during the year. Thefunction will find the setting that provides optimal comfortwith minimal energy consumption. It contributes to fast, safeand easy commissioning.Other features: A user-friendly front-mounted user interface. Easy installation and start-up. With the AUTOAdaptfeature (factory setting), the pump does not need anyadjustments to the settings in most cases. High degree of comfort. Minimum noise from valves, etc. Low energy consumption compared to conventionalcirculator pumps.TM074557 AUTOAdaptALPHA2 26-99ALPHA2 26-99ALPHA2 26-99 features eight different control modesincluding constant pressure AUTOAdapt and proportionalpressure AUTOAdapt.The AUTOAdapt function continuously adjusts the pumpperformance to the actual heat demand, i.e. the size of thesystem and the changing heat demand during the year. Thefunction will find the setting that provides optimal comfortwith minimal energy consumption. It contributes to fast, safeand easy commissioning.3
1ALPHATM074717Product dataA magnetite-resistant design, robust ceramic shaft, andstainless-steel bearing plate ensure that the ALPHA2 26-99reliably delivers the optimal system performance throughoutthe years at the lowest possible energy consumption.ALPHA1 26-99ALPHA1 26-99 circulator pumps are remote-controlled via alow-voltage 0-10 VDC signal by a system controllerintegrated into a boiler or a building managementsystem. The pump requires a 0-10 V signal on the signalport to control the speed of the pump. The pump will run atits minimum speed if no signal is present or the signal fails.A magnetite-resistant design, robust ceramic shaft, andstainless-steel bearing plate ensure that the ALPHA1 26-99reliably delivers the optimal system performance at thelowest possible energy consumption throughout the years.ALPHA 15-55 HWR-DALPHA 15-55 HWR-DThe ALPHA HWR-D system is an on-command hot waterrecirculation system for use in domestic hot waterapplications. The system includes two push-buttons anda temperature sensor (sensor is only included in the variantfor California, HWR-D CA).A repeater that can extend the range of wireless control forthe push-button is also available as an accessory.To prevent continuous operation, the pump stopsrecirculating water when:a) the media temperature measured at the temperaturesensor has increased by 10 F (5.5 C) or is higher than 102 F (38.9 C).b) the pump has been operating continuously for more than5 minutes, or for a total of 15 minutes during the last hour.If the system is operated without the temperature sensor,the pump will stop according to b).4
1ALPHAProduct data1.2 ApplicationsALPHA2 15-55 and ALPHA1 15-55 applicationsThe ALPHA2 15-55 and ALPHA1 15-55 circulators aredesigned for the circulation of water in heating systems,domestic hot water systems as well as air-conditioning andcold water systems. Cold water systems are defined assystems where the ambient temperature is higher than thetemperature of the pumped liquid.ALPHA2 15-55 and ALPHA1 15-55 circulators are the bestchoice for the following systems: One pipe systems. Two pipe systems. Underfloor heating. Domestic hot water recirculation. Systems with constant or variable flows where you wantto optimize the setting of the pump duty point. Systems where summer setback is required (ALPHA215-55).ALPHA2 26-99 and ALPHA1 26-99 applicationsALPHA2 26-99 and ALPHA1 26-99 circulator pumps aredesigned for circulating liquids in heating and airconditioning systems.These circulators are equipped with a conduit box for easyinstallation of the power cable.ALPHA2 26-99 models are internally controlled and aredesigned for systems with variable flow rates, where thepump is internally controlled via a user interface. Speedcontrol can reduce power consumption considerably.ALPHA1 26-99 models are externally controlled via a lowvoltage 0-10 VDC signal by a system controller integrated ina boiler or a building management system. The pump willrun at its minimum speed if no signal is present or the signalfails.ALPHA 15-55 HWR-D applicationsThe ALPHA HWR-D system is an on-command hot waterrecirculation system for use in domestic hot waterapplications. It provides optimal comfort by providing hotwater instantly on demand.5
1ALPHAProduct data1.3 FeaturesFeatures overviewFeatureALPHA2 15-55ALPHA1 15-55ALPHA2 26-99ALPHA1 26-99ALPHA 15-55HWR-D/TFor heating and cooling systems -For hot water recirculation systems -- Energy efficient permanent magnet motor Simple operating panel - External speed control via low voltage 0-10 VDC signal--- -AUTOAdapt control mode automatically adjusts theperformance - --Three constant speed modes ----Three constant pressure modes --Three proportional pressure settings-- --Cast iron pump housing -Stainless steel pump housing - LED display shows current energy consumption andestimated flow ---Integrated check valve - Line cord connection -- Terminal box connection -Max. head [ft (m)]19 (5.8)19 (5.8)42 (12.8)42 (12.8)17 (5.1)(m3/h)]21 (4.8)21 (4.8)26 (5.9)26 (5.9)16.5 (3.7)Flanged connection for quick installation -1 1/4" NPSM (union) connection---- 1 1/2" BSP (union) connection-- --Nut captures for flanges ---Magnetite-resistant design helps prevent deposits andblockages with robust ceramic shaft, ceramic bearing rings, and stainless steel bearing plate Manual summer mode starts the pump every 24 hours toprotect against deposits ----Robust startup feature enables the pump to continuouslyattempt to restart in blocked rotor conditions ---Foam insulating jacket for some models *---Replaces more than 30 other pump models ------- Max. flow [gpmBluetoothTMenabled wireless communication withaccessories* Available as an accessory for ALPHA1 15-55.6
1ALPHAProduct data1.4 Pumped liquidsGrundfos ALPHA circulators are suitable for the followingliquids: clean, thin, non-aggressive and non-explosive liquids, notcontaining solid particles, fibers or mineral oil. cooling liquids, not containing mineral oil. domestic hot water with maximum 15 grain/gal (US),maximum 149 F (65 C); maximum peak 158 F (70 C). softened water. If the pump is installed in a heating system, the watermust meet the requirements of accepted standards onwater quality in heating systems.For water with a higher degree of hardness, contactGrundfos.ALPHA circulators must not be used for the transfer offlammable liquids such as diesel oil, gasoline or similarliquids, and must not be used to circulate aggressive liquidssuch as acid or seawater.In domestic hot water systems, the temperature of thepumped liquid must always be above 122 F (50 C) due tothe risk of legionella. The temperature of the hot watersource must not be high enough to cause burns or scalding.The pump must be permanently connected to the mainwater supply and must not be connected with a hose.The kinematic viscosity of water is 1 mm2/s (1 cSt) at 68 F(20 C). If the pump is used for a liquid with a higherviscosity, the hydraulic performance of the pump will bereduced.Example: 50 % glycol at 68 F (20 C) means a viscosity ofapproximately 10 mm2/s (10 cSt) and a reduction of thepump performance by approximately 15 %.When selecting a pump, pay attention to the viscosity of thepumped liquid. Additives that can or will disturb thefunctionality of the pump must not be used.GlycolThe ALPHA 1/2 15-55 and ALPHA 26-99 circulators aredesigned for pumping clean water or up to 50/50 mixturesby weight of glycol and water.*To prevent the glycol mixture from degrading, temperaturesexceeding the rated liquid temperature must be avoided,and the operating time at high temperatures must beminimized.It is important to clean and flush the system before addingthe glycol mixture.To prevent corrosion or precipitation, the glycol mixture mustbe checked and maintained regularly. If further dilution ofthe supplied glycol is required, refer to the glycol supplier'sinstructions.* ALPHA1/2 26-99, if cooling liquid is used, requiresmixtures of water with anti-freezing media such as glycol orethanol down to 14 F (-10 C) with a validated temperatureprofile. The viscosity increases depending on the type ofglycol, the mixture, and the liquid temperature, but theviscosity must not exceed 10 cSt (10 mm/s2).ALPHA HWR-D is suited for domestic hot water only.7
2ALPHAPerformance range2. Performance range2.1 ALPHA2 15-55 performance range and operating mode selectionThe shown hydraulic performance is without a check valve.181614121086420246810 12 14Q [US GPM]16 182022TM0745540TM061857AUTO ADAPTOperating range(max. - min.)Push-button Each time you press the push-button, the circulator setting is changed.TM073288High constant speed Runs at a constant speed and consequently on a constant curve. At Speed III, the pump is set on the maximum curve under all operating conditions. For quick venting, set the pump to Speed III for a short time.TM073287Medium constant speed Runs at a constant speed and consequently on a constant curve. At Speed II, the pump is set on the medium curve under all operating conditions.TM073286Low constant speed Runs at a constant speed and consequently on a constant curve. At Speed I, the pump is set on the minimum curve under all operating conditions.TM072406Constant pressure I The duty point of the pump will move left and right along the lowest constant-pressure curve depending on thewater demand in the system. The pump head (pressure) is kept constant, irrespective of the water demand.TM072407Constant pressure II The duty point of the pump will move left and right along the middle constant-pressure curve depending on thewater demand in the system. The pump head (pressure) is kept constant, irrespective of the water demand.TM061858TM072408Constant pressure III The duty point of the pump will move left and right along the highest constant-pressure curve depending on thewater demand in the system. The pump head (pressure) is kept constant, irrespective of the water demand.Manual summer mode The pump is stopped to save energy, and only the electronics are running. To avoid liming and blocking of the pump, the pump is started every 24 hours for two minutes at a low speed.8TM061857AUTOAdapt (factory setting) This function automatically controls the pump performance within the defined performance range, automaticallyadjusting the pump performance to system demands over time.(Hold for three seconds)
2ALPHAPerformance range2.2 ALPHA1 15-55 performance range and operating mode selectionThe shown hydraulic performance is without a check valve.H[m]H[ft]620185Constant Pressure III1614412310Constant Pressure II8216Constant Pressure 17184.0Q [US GPM]Q [m³/h]Push-button Each time you press the push-button, the circulator setting is changed.Constant pressure II The duty point of the pump will move left and right along the middle constant-pressure curve depending on the water demandin the system. The pump head (pressure) is kept constant, irrespective of the flow demand.TM073287Constant pressure III The duty point of the pump will move left and right along the highest constant-pressure curve depending on the water demandin the system. The pump head (pressure) is kept constant, irrespective of the flow demand.TM073288Constant pressure I The duty point of the pump will move left and right along the lowest constant-pressure curve depending on the water demandin the system. The pump head (pressure) is kept constant, irrespective of the flow demand.TM0618570TM0689100TM07328609
2ALPHAH[m]5015144513401211351030Proportional Pressure III25Proportional Pressure II7209Constant Pressure II257Constant Pressure 143.0163.5184.02022244.55.05.526286.06.5Q [US GPM]7.0Q [m³/h]Proportional pressure .02022244.55.05.5266.0Constant pressure AUTOAdaptPush-button Each time you press the push-button, the circulator setting is changed.Proportional pressure I The duty point of the pump will move up or down along the lowest proportional-pressure curve, depending on the heatdemand in the system. The pump head (pressure) is reduced at falling heat demand and increased at rising flow demand.Proportional pressure II The duty point of the pump will move up or down along the middle proportional-pressure curve, depending on the heatdemand in the system. The pump head (pressure) is reduced at falling heat demand and increased at rising flow demand.Proportional pressure III The duty point of the pump will move up or down along the highest proportional-pressure curve, depending on the heatdemand in the system. The pump head (pressure) is reduced at falling heat demand and increased at rising flow demand.Proportional pressure AUTOAdapt This function enables the circulator to control the pump performance automatically within the defined proportional pressurerange and automatically adjusts the pump performance to system demands over time.Constant pressure I The duty point of the pump will move left and right along the lowest constant-pressure curve depending on the flow demand inthe system. The pump head (pressure) is kept constant, irrespective of the flow demand.10Q [US GPM]7.0Q [m³/h]Constant pressure III The duty point of the pump will move left and right along the highest constant-pressure curve depending on the flow demandin the system. The pump head (pressure) is kept constant, irrespective of the flow demand.TM0732886.5Constant pressure AUTOAdapt This function enables the circulator to control the pump performance automatically within the defined constant pressure rangeand automatically adjusts the pump performance to system demands over time.TM061858Constant pressure II The duty point of the pump will move left and right along the middle constant-pressure curve depending on the flow demand inthe system. The pump head (pressure) is kept constant, irrespective of the flow demand.28TM07450003086Proportional Pressure I53Constant Pressure ormance range2.3 ALPHA2 26-99 performance range
2ALPHATM073788Performance range2.4 ALPHA1 26-99 performance rangeALPHA1 26-99 circulators are externally speed-controlled by an analog 0-10 VDC signal.11
2ALPHAPerformance range2.5 ALPHA 15-55 HWR-D performancerangeThe pump runs at a constant speed and consequently on a constant curve. The pump is set on the maximum curve under alloperating conditions.H[m]5.55.04.5H[ft]ALPHA 15-55 HWR-D60 Hz18171615144.03.53.01312111092.52.01.5876Without check valve installedWith check valve installed541.00.5321000.012120.5341.05671.5892.010 11 12 13 14 15 16 17 18Q [US GPM]2.53.03.5 Q [m³/h]TM0725010.0
3Product rangeALPHA3. Product range3.1 Product rangeALPHA2 15-55ModelDescriptionProduct numberALPHA2 15-55 FCast iron flange with terminal box99163903ALPHA2 15-55 FRCast iron rotated flange with terminal box99163932ALPHA2 15-55 SFStainless flange with terminal box99163937ALPHA2 15-55 F/LCCast iron flange with line cord99163906ALPHA2 15-55 FR/LCCast iron rotated flange with line cord99163934ALPHA2 15-55 SF/LCStainless flange with line cord99163972ModelDescriptionProduct numberALPHA1 15-55 FCast iron flange with terminal box99287256ALPHA1 15-55 FRCast iron rotated flange with terminal box99287259ALPHA1 15-55 SFStainless flange with terminal box99287262ALPHA1 15-55 F/LCCast iron flange with line cord99285998ALPHA1 15-55 FR/LCCast iron rotated flange with line cord99287244ALPHA1 15-55 SF/LCStainless flange with line cord99287250ModelDescriptionProduct numberALPHA2 26-99 FCast iron flange with terminal box99490916ALPHA2 26-99 SUStainless threaded version with terminal box99490917ModelDescriptionProduct numberALPHA1 26-99 FCast iron flange with terminal box99490914ALPHA1 15-55ALPHA2 26-99ALPHA1 26-9913
3ALPHAProduct rangeALPHA 15-55 HWR-D14ModelDescriptionProduct numberALPHA 15-55 HWR-D LC CA Pump with line cord Push-button HWR-D (qty. 2) Temperature sensor HWR-D99472723ALPHA 15-55 HWR-D LC Pump with line cord Push-button HWR-D (qty. 2)99472724ALPHA 15-55 SUC HWR-D Comfort Pump with line cordPush-button HWR-D (qty. 2)Comfort valve kits (qty. 4)Isolation valve set99793173ALPHA 15-55 HWR-T Pump with line cordTemperature sensorDigital timerIsolation valve set99906545Push-button HWR-DPush-button HWR-D only (qty. 1)99410378Temperature sensor HWR-DTemperature sensor HWR-D only (qty. 1)99410350Repeater HWR-DRepeater HWR-D only (qty. 1)99410217
3ALPHAProduct range3.2 Competitor cross referenceALPHA2 15-55ModelALPHA2 15-55 F/LCGrundfosTACOB&GArmstrongWILOUP 15-10 F005-F2-3NRF-25Astro 230CI-RStar S 16FXUP 15-42 F006-F7NRF-9F/LWAstro 250CI-RStar S 21FXUPS 15-42 F007-F5-5Ecocirc 19-14 varioCompass 20-20Star S 21RFCUPS 15-58 FC008-F6-1Ecocirc 19-14 autoALPHA 15-55 F008-F6-3Stratos ECO 16 RFC00R-F6-10015-MSF3-1ALPHA2 15-55 FR/LCUP 15-10 FR005-F2-2NRF-22Astro 230CIStar S 16FUP 15-42 FR007-F5NRF-9F/LWAstro 250CIStar S 21FUPS15-58 FRC008-F6Astro 20Star S 21RFCALPHA 15-55 FR00R-MSFAstro 25Stratos ECO 16 RFC0015-MSF3Astro 30007e0015eALPHA1 15-55ModelGrundfosTACOB&GArmstrongWILOUP 15-10 F005-F2-3NRF-9F/LWAstro 20Star S 16FXUP 15-42 F006-F7NRF-22Astro 25Star S 21FXUPS 15-42 F007-F5-5NRF-25Astro 30Star S 21RFCUPS 15-58 FC008-F6-1NRF-9F/LWAstro 230CI-RStratos ECO 16 RFC008-F6-3Ecocirc 19-14 varioAstro 250CI-R00R-F6-1Ecocirc 19-14 autoCompass 20-20ArmstrongALPHA1 15-5500R-MSF0015-MSF3-1007e0015eALPHA2 26-99ModelGrundfosTACOB&GALPHA2 26-99UPS 26-99F0011-F4, VR3452Ecocirc XLWILO15
4ALPHAIdentification4. IdentificationNameplates4.1.2 Nameplate, ALPHA 26-99 models4.1.1 Nameplate, ALPHA2 and ALPHA112345Min Max Nonsubmersible PumpAmp 0.05 0.65 Electronically Protected Classe FWatt 545 Protection Electronique Classe F1Ph 115V 60HzMax water temp 230 F Temperature Maximum Des Liquides 110 CFor supply Connection use copper wire suitable for 90 C or equivalentPour le raccordement d'alimentation, employez des fils qui resistent aumoins a 90 C, Utilisez uniquement des conducteurs de cuivre.TM043419Prod No. XXXXXXXXCSA ENC 2BOITIER DE TYPE 21234TM070336Example of nameplate, ALPHA2Example of faceplate, ALPHA 26-995Min Max Nonsubmersible PumpAmp 0.15 0.65 Electronically Protected Class F45 Protection Electronique Class FWatt 81 Ph 115V 60HzMax water temp 230 F Temperature Maximum Des Liquides 110 CFor supply Connection use copper wire suitable for 90 C or equivalentPour le raccordement d'alimentation,employez des fils qui resistent aumoins a 90 C,Utilisez uniquement des conducteurs de cuivre.Example of nameplate, ALPHA1Pos.Description1Type designation2Voltage [V]3Frequency [Hz]4Approval mark UL5Input power P1 [W] at a maximum and minimumperformance6Rated current [A] at maximum and minimum performancePos.Description7Speed1Product number8Enclosure class2Voltage [V]9Product number3Rated current [A]10Production code (YYMM) Min.: Minimum current [A]11Country of origin Max.: Maximum current [A]12Control signalInput power [W]:13Direction of rotation Min.: Minimum power [W]14Code for UL Listed pumps Max.: Maximum power [W]15Max. system pressure [psi]Maximum fluid temperature [ F]16Max. water temperature [ F]17Max. ambient temperature [ F]18Application4516TM068960Prod NO. XXXXXXXXCSA ENC 2BOITIER DE TYPE 2
4ALPHA1234Example: ALPHA2 26-99 F5CodeDescriptionALPHAPump range (ECM circulator)TM07459164.2.3 Type key, ALPHA 26-99 modelsExample of nameplate, ALPHA 15-55 HWR-D modelsIdentification4.1.3 Nameplate, ALPHA 15-55 HWR-D modelsPump control:1: Externally controlled (0-10 V)2: Internally pressure-controlled modes2- Proportional pressure- Constant pressurePos.Description1Product number2Voltage [V]- Proportional pressure with AUTOAdapt- Constant pressure with AUTOAdapt26-99Rated current [A]:3 Min.: Minimum current [A]- : Cast iron Max.: Maximum current [A]S: Stainless steelInput power [W]4 Min.: Minimum power [W]Connection:F Max.: Maximum power [W]5Maximum liquid temperature [ F]6FCC and IC IDPump name:Material:F: FlangeU: Thread 1 1/2"CCheck valve (removable)4.2.4 Type key, ALPHA 15-55 HWR-D modelsType keys4.2.1 Type key, ALPHA 2Example: ALPHA2 15-55 - 165Example: ALPHA 15-55 HWR-DCodeExplanationALPHAPump typeCodeExplanation15Nominal diameter (DN) of inlet and outlet ports [mm]ALPHA2Pump type55Maximum head [dm]15Nominal diameter (DN) of inlet and outlet ports [mm]HWR-DHot water recirculation on demand system55Maximum head [dm]-- : Cast iron pump housingS : Stainless steel pump housing165Port-to-port length [mm]4.2.2 Type key, ALPHA 1Example: ALPHA1 15-55 FCodeExplanationALPHA1Pump type15Nominal diameter (DN) of inlet and outlet ports [mm]55Maximum head [dm]FPipe connectionF: Flange17
5ALPHAOperation5. OperationOperating conditions5.1.1 Operating conditions, ALPHA2 15-55and ALPHA1 15-55 modelsSupply voltage1 x 115 V, 10 %/- 10 %, 60 HzMotor protectionThe pump requires no external motor protection.Enclosure classIndoor use only, IP42.CSA enclosure type 2.Insulation classFRelative humidityMaximum 95 %Maximum outlet pressure150 psi (10.34 bar)Inlet pressureSpeed settingMin. [W]Max. [W]Constant speed III(High)3945Constant speed II(Medium)1530Constant speed I (Low)58Constant pressure I845Constant pressure II1445Constant pressure III2245AUTOAdapt545Liquid temp.Min. inlet press.[ F ( C)][psi (bar)]167 (75)0.75 (0.05)194 (90)4.06 (0.28)Speed settingMin. [W]Max. [W]15.7 (1.08)Constant pressure III3945Constant pressure II1445Constant pressure I845230 (110)Approximate power usage, ALPHA1 15-55Sound pressure level43 dB (A)Ambient temperature32 F (0 C) to 104 F (40 C)Liquid temperature36 F (2 C) to 230 F (110 C)In domestic hot water systems, keep the liquid temperaturebelow 149 F (65 C) to eliminate the risk of limeprecipitation.To avoid condensation in the control box and stator, theliquid temperature must always be higher than the ambienttemperature:18Watt readingsAccuracy: 1 watt.Flow indicatorProvides a relative indication of flow – should not be used inlieu of a flow meter.Check valveUse of a check valve may reduce pump hydraulicperformance. Use a check valve in parallel pumpingapplications.Approximate power usage, ALPHA2 15-55Ambient temp.Min. liquid temp.Max. liquid temp.[ F ( C)][ F ( C)][ F ( C)]32 F (0 C)36 F (2 C)230 F (110 C)50 F (10 C)50 F (10 C)230 F (110 C)68 F (20 C)68 F (20 C)230 F (110 C)86 F (30 C)86 F (30 C)230 F (110 C)95 F (35 C)95 F (35 C)194 F (90 C)104 F (40 C)104 F (40 C)158 F (70 C)
5ALPHASupply voltage1 x 115 V, 10 %/- 10 %, 60 HzMotor protectionEP - Electronically Protected.The pump requires no external motor protection.Enclosure classCSA enclosure type 2. Indoor use only. X2D.Insulation classFRelative humidityMaximum 95 %Maximum system pressure150 psi (10 bar) (1.0 MPa)Inlet pressureThe minimum inlet pressure must be available at the pumpinlet during operation.Liquid temp.Min. inlet press.[ F ( C)][psi (bar) (MPa)]203 (95) 7 (0.48) (0.05)Sound pressure level43 dB(A)Inrush currentMeasured on a flicker network according to IEC61000-3-3:1994 A1, A2, Annex B. 115 V: 25.2 ALeakage current 3.5 mAAmbient temperatureMaximum 130 F (55 C) near the pump surface.Storage temperatureMaximum 158 F (70 C)Liquid temperatureMaximum (continuously): 203 F (95 C)Minimum: 14 F (-10 C)In domestic hot water systems, keep the liquid temperaturebelow 149 F (65 C) to eliminate the risk of limeprecipitation.To avoid condensation in the control box and stator, theliquid temperature must always be higher than the ambienttemperature.Operation5.1.2 Operating conditions, ALPHA2 26-99and ALPHA1 26-99 modelsOperating temperaturesAmbient temp.Liquid temp. min.Liquid temp. max.[ F ( C)][ F ( C)][ F ( C)]32 (0)36 (2)230 (110)50 (10)50 (10)230 (110)68 (20)68 (20)230 (110)86 (30)86 (30)230 (110)95 (35)95 (35)194 (90)104 (40)104 (40)158 (70)Check valveUse of a check valve may reduce pump hydraulicperformance. Use a check valve in parallel pumpingapplications.Approximate power usageApprox. power usageSpeed settingMin. [W]Max. [W]Constant pressure (I)845Constant pressure (II)1445Constant pressure (III)394519
5ALPHAOperation5.1.3 Operating conditions, ALPHA 15-55HWR-D modelsSupply voltage1 x 115 V, 10 %/- 10 %, 60 HzMotor protectionThe pump requires no external motor protection.Enclosure classIndoor use only, IP42.CSA enclosure type 2.Insulation classFRelative humidityMaximum 95 %Maximum outlet pressure150 psi (10.34 bar)Inlet pressureLiquid temp.Min. inlet press.[ F ( C)][psi (bar)]167 (75)0.75 (0.05)194 (90)4.06 (0.28)230 (110)15.7 (1.08)Sound pressure level43 dB (A)Ambient temperature32 F (0 C) to 104 F (40 C)Liquid temperature36 F (2 C) to 230 F (110 C)In domestic hot water systems, keep the liquid temperaturebelow 149 F (65 C) to eliminate the risk of limeprecipitation.To avoid condensation in the control box and stator, theliquid temperature must always be higher than the ambienttemperature:Ambient temp.Min. liquid temp.Max. liquid temp.[ F ( C)][ F ( C)][ F ( C)]32 (0)36 (2)230 (110)50 (10)50 (10)230 (110)68 (20)68 (20)230 (110)86 (30)86 (30)230 (110)95 (35)95 (35)194 (90)104 (40)104 (40)158 (70)Check valveUse of a check valve may reduce pump hydraulicperformance.Approximate power usage20Min. [W]Max. [W]3945
5ALPHAControl modes5.2.1 Control modes, ALPHA2123OperationSetting the pumpAUTOAdapt, factory default setting - The pump's factorydefault setting is the AUTOAdapt setting. The setting can bechanged from the recommended factory default setting to analternative setting by pressing the pump's push-button.Changing from recommended to alternative pumpsetting - Heating systems are "slow" systems that cannotbe set to the optimum operation within minutes or hours.However, if the recommended pump setting in someapplications does not give the desired distribution of heat inthe rooms of the house, you can change to an alternativepump setting.Selection of control mode by application45TM0434216Elements on the ALPHA2 user interfacePos.Description1Display showing the power consumption in watt or theflowLight field indicating high and low flowProduction code:2- 1st and 2nd figures, year- 3rd and 4th figures, week3Light field indicating fixed speed setting4Light field indicating constant pressure setting5Light field indicating AUTOAdapt setting6Push-button for selection of pump settingDisplayThe display is on when you have switched on the powersupply. The display shows the actua
Dec 11, 2020 · Grundfos. ALPHA circulators must not be used for the transfer of flammable liquids such as diesel oil, gasoline or similar liquids, and must not be used to circulate aggressive liquids such as acid or seawater. In domestic hot water systems, the temperature of the pumped liquid must alwa
GRUNDFOS Sarajevo Phone: 387 33 592 480 Telefax: 387 33 590 465 www.ba.grundfos.com email: grundfos@bih.net.ba Brazil BOMBAS GRUNDFOS DO BRASIL Phone: 55-11 4393 5533 Telefax: 55-11 4343 5015 Bulgaria Grundfos Bulgaria EOOD Tel. 359 2 49 22 200 Fax. 359 2 49 22 201 Canada GRUNDFOS Canada Inc. Phone: 1-905 829 9533 Telefax: 1-905 829 .
2005-2006 Alpha Chi Omega Fall 2004 Delta Sigma Theta . Spring 2004 Kappa Alpha Theta 2003-2004 Alpha Xi Delta 2002-2003 Alpha Omicron Pi 2001-2002 Alpha Chi Omega . 1998-1999 Chi Omega 1997-1998 Alpha Xi Delta 1996-1997 Alpha Gamma Delta . 1995-1996 Alpha Gamma Delta 1994-1995 Alpha Gamma Delta 1993-1994 Chi Omega 1992-1993 Chi Omega .
Grundfos UPS 15-35, from 36 to 165 F (2 to 73 C). Grundfos UP(S) 15 pump with timer, maximum water temperature 150 F (65 C). 4. Operating conditions Grundfos UP(S) Series 15 pumps are designed for indoor use only. Grundfos UP(S)15 series pumps with stainless steel or bronze volutes can be used in both open and closed systems.
GRUNDFOS Un negocio global Con más de 18.000 empleados y una producción anual de . Para mantener su posición de líder, Grundfos constante- . GRUNDFOS ALPHA2, UPS, UP Serie 100 . . . . . .8 GRUNDFOS COMFORT
GRUNDFOS Pumps Corporation 17100 West 118th Terrace Olathe, Kansas 66061 Phone: (913) 227-3400 Telefax: (913) 227-3500 www.grundfos.com Canada GRUNDFOS Canada Inc. 2941 Brighton Road Oakville, Ontario L6H 6C9 Phone: (905) 829-9533 Telefax: (905) 829-9512 Mexico Bombas GRUNDFOS de Mexico S.A. de C.V.
CASIO IT -3000 PolyTherm 200-2.8 Alpha 800-3.4 PolyTherm 200-3.2 CASIO PB -300 Alpha 800-2.4 CASPAR INTEGRATED SYSTEMS PTS -160 Alpha 800-2.4 CBM iDP -3210 Alpha 800-2.4 CIBA 200/270 Alpha 800-2.4 CIBA #473552 Alpha 400-2.3 CIBA CORNING MAGIC LIFE ANALYZER II Alpha 800-2.4 CITIZEN CBM -210/220 Alpha 800-2.4
turning, milling, grinding and workholding solutions. They never compromise on product design, . every time. KOMA Precision, Inc. is pleased to be a part of the Hardinge ‘best in class’ product solutions for customers . (Fanuc)* Alpha 4i Alpha 2i Alpha 4i Alpha 8i (8is) Alpha 8i (22is) Alpha 4i Alpha
Brand and Usage Guidelines Alpha Invitation 17-18 // Alpha Film Series // Alpha Youth Series One Alpha, Many Contexts. Wherever you are in the world, a person's experience of Alpha's brand should be the same. Alpha has one single identity visually represented by a question mark logo. When we apply the branding consistently, there is less
