Domestic Hot Water Recirculation Systems - …

1 Domestic Hot Water Recirculation SystemsApplication, Selection & Installation GuideEffective Date: 01/31/06 Printed in USAW ater Circulation Pumps & Circulators Taco Catalog # 100-41 Supersedes: NewUse at 40%, Centered (In place of Do it Once. Do it right on Catalog Sheets) NOTE: Remove Hydronic Components & Systemse-smart is our way of helping you quickly identify our most resource-saving Problem:Waiting for Hot WaterIt s a common problem: turn on the faucet or shower for hot Water , then wait for it to arrive. In fact, the wait can be up to two minutes in larger homes with multiple bathrooms and long runs of pipe between the plumbing fixtures and the Water heater! With a Taco Domestic Hot Water Recirculation system in place, there s no more wait. Instant hot Water !Waiting Means WastingWaiting for hot Water sends millions of gallons of cooled Water down the drain each year. In fact, an average family of four wastes up to 14,000 gallons of Water each year waiting for hot Water .

2 * Water conservation is so important that many US states and municipalities routinely impose Water -ing bans and offer rebate incentives to help conserve this natural resource. *Source: Dept. of Energy Annual Water SavingsEnergy Down The DrainOf course, all that waiting Water contains some heat energy (BTU s), even if it s only room temperature. Wasting those Domestic Hot Water RecirculationBTU s and starting over with fresh, cold Water to heat up requires even more heat energy. So in addition to wasting Water , millions of BTU s and energy dollars are wasted, Solution:Install a Domestic Hot Water Recirculation SystemThe Taco Plumb n Plug Recirculation system is specifically designed for: Instant hot Water comfort Water savings Energy savingsHow a Domestic Hot Water Recirculation system WorksA standard DHW system requires a dedicated return line from the furthest fixture back to the Water heater.

3 The re-turn line is connected to a tee at the tank drain valve or to the tank s cold Water supply line. A Taco Plumb n Plug re-circulation pump with an optional Integral Flow Check (IFC ) is installed on the return line and controlled by a timer or temperature Aquastat. The spring-loaded IFC prevents gravity circulation during off-cycles. The timer turns on the pump at preset intervals, usually during peak use periods in the early morning and late afternoon. An optional Aquastat operates the pump to keep hot Water in the line within a set range (95 F 115 F). All supply and return lines should be insulated for maximum energy Components Taco Plumb n Plug Circulator with optional IFC Isolation valves - to isolate the pump for future service Flow check valve - to prevent gravity flow Purge Valve - to remove air from system piping Timer control - 24-hour analog or 7-day digital timer Aquastat - to control temp between 95 F-115 F (opt.)

4 Pipe insulation - to maximize energy savingsFeatures & Benefits:Plumb n Plug Circulators Removable stainless steel cartridge - contains all moving parts Patented, removable Integral Flow Check (IFC ) option Bronze construction 1 2 & 3 4 sweat, 3 4 npt, union or flanged connections Pre-wired power cord Pre-wired 24-hour analog or 7-day programmable timer Durable Noryl impeller Ceramic shaft, carbon bearings Quiet running, low power consumption Low maintenance, unmatched reliability UL ListedPipe Type Hot Water Supply Length (ft.) 100 150 200 250 300 100 150 200 250 300 Pipe Water Volume (gallons) Daily Water Volume Wasted (gallons)* 12 18 24 30 36 25 37 50 62 75 Annual Water Volume Saved (gallons) 4,4006,6008,80011,00013,2009,20013,70018 ,30023,00027,500* Assume average of 10 cycles per day. 1/2 Copper Type L per 100 3/4 Copper Type L per 100 Noryl is a registered trademark of General Electric Installation & PipingOne-Story with 1 Water HeaterOne-Story with 2 Water HeatersMulti-Story with 1 Water HeaterMulti-Story with 2 Water HeatersRecirculation Piping with StorageWater Heater & Mixing ValveIndirectWaterHeaterBoilerCold Water SupplyHot WaterSupplyTubShowerSinkDishWasherClothe sWasherHotWaterReturnTACO Plumb N Plug CirculatorRecirculation Pipingwith Indirect Water ModelsSubmittal Data InformationHP 1/401/401/401/401/401/401/401/401/251/25 Voltage 115/60/1115/60/1115/60/1115/60/1115/60/1 115/60/1115/60/1115/60/1115/60/1115/60/1 Amps Hr Analog Timer 003-BC4-PNP 003-B4-PNP 003-BT4-PNP 003-BC4-1 PNP 006-BC4-PNP 006-B4-PNP 006-BT4-PNP 006-BC4-1 PNP ------------7 Day DigitalTimer 003-BC4-8 PNP 003-B4-2 PNP 003-BT4-2 PNP 003-BC4-9 PNP 006-BC4-4 PNP

5 006-B4-2 PNP 006-BT4-2 PNP 006-BC4-5 PNP Line Cord Only 003-BC4-4 PNP003-B4-1 PNP003-BT4-1 PNP003-BC4-5 PNP006-BC4-2 PNP006-B4-1 PNP006-BT4-3 PNP006-BC4-3 PNP --- ---Standard Model # 003-BC4003-B4003-BT4003-BC4-1006-BC4006- B4006-BT4006-BC4-1008-BC6008-BF6 system Connection 1/2 Sweat3/4 Sweat3/4 NPTU nion1/2 Sweat3/4 Sweat3/4 NPTU nion3/4 SweatFlangedPlumb n Plug (PNP) Pre-Wired Models Integral Flow Check (IFC) ModelsHP Voltage Amps 24 Hr Analog Timer --- --- --- --- 7 Day Digital Timer Line Cord Only Standard Model # system Connection Plumb n Plug (PNP) Pre-Wired Models1/401/401/401/401/401/401/251/2511 5/60/1115/60/1115/60/1115/60/1115/60/111 5/60/1115/60/1115/60 003-BC4-10 PNP 003-B4-4 PNP 006-BC7-5 PNP 006-BC7-4 PNP 006-B7-1 PNP 003-BC4-7 PNP003-BC4-6 PNP ---006-BC7-3 PNP006-BC7-2 PNP --- --- ---003-BC4-IIFC003-BC4-IFC003-B4-2 IFC006-BC7-1 IFC006-BC7-IFC006-B7-IFC008-BC6-IFC008-B F6-IFC1/2 Sweat3/4 SweatUnion1/2 Sweat3/4 SweatUnion3/4 SweatFlangedDomestic Hot Water Circulator AccessoriesUnionsHalf UnionsShut-Off UnionsSystemConnection1/2 3/4 1/2 3/4 Sweat 110-558110-559258-3258-4 NPT 110-556110-557258-1258-2 FreedomFlangeShut-OffBronzeSystemConnect ion1/2 3/4 1/2 3/4 Sweat 242-2243-2110-522 BSF110-523 BSFNPT 242-1243-1---110-251 BFPlumb n PlugAccesoriesAnalog Timer KitDigital Timer KitAquastatModel #265-1265-3563-2 HalfUnionsShut-offUnionsFreedom Flange265-1 AnalogTimer265-3 DigitalTimerShut-off

6 Freedom the CorrectCirculator for the JobPump Selection ChartsThis information is provided as a guide only. Larger models are available. For larger Systems , consult your local Taco representative. Find the table below that best describes the design you plan to use. Select the pump model based on the supply and return pipe length, size and pump options. Do not oversize the pump or high velocity noise and erosion corrosion of system piping may result. Model # 003 006 008 003-IFC* 006-IFC* 008-IFC* Supply PipeMaximum Length (ft.)5015027550125250 Total Maximum PipeLength (ft.)100300550100250500* With Integral Flow Check 1/2" Supply & 1/2" Return Lines003 006 008 003-IFC*006-IFC*008-IFC*3509001,45035075 01,3507001,8002,9007001,5002,700* With Integral Flow Check Model #Supply PipeMaximum Length (ft.)Total Maximum PipeLength (ft.)3/4" Supply & 3/4" Return Lines Model #003006008003-IFC*006-IFC*008-IFC*Supply PipeMaximum Length (ft.)

7 100275450100275425 Total Maximum PipeLength (ft.)200550900200550850* With Integral Flow Check3/4" Supply & 1/2" Return Lines Model #003006008003-IFC*006-IFC*008-IFC*Supply PipeMaximum Length (ft.)125325525130275500 Total Maximum PipeLength (ft.)2506501,0502605501,000* With Integral Flow Check1" Supply & 1/2" Return Lines1/2" Supply & 1/2" Return Lines3/4" Supply & 3/4" Return Lines3/4" Supply & 1/2" Return Lines1" Supply & 1/2" Return LinesAssumptions:Flow = 1 GPMMax. Velocity = 3 have been added for pressure dropof other typical system componentsType L Copper TubingSupply & Return Piping are equal in length1" Supply & 3/4" Return LinesPerformance Field Information - 60 Hz Model #003006003-IFC*006-IFC*Supply PipeMaximum Length (ft.)6001,5001,2002,500 Total Maximum PipeLength (ft.)1,2003,0001,2002,500* With Integral Flow Check1" Supply & 3/4" Return LinesDOMESTIC Water Recirculation MODELS (STD)FLOW - M 3/HFLOW - GPMTOTAL HEAD FEETTOTAL HEAD METERSTOTAL HEAD FEETTOTAL HEAD METERSFLOW - M 3 - Water Recirculation MODELS (IFC)003006008003-IFC006-IFC008-IFC12312 31231234.

8 "On-Demand" Systemsfor New or Retrofit InstallationsUsing the existing cold Water line as the return line, the D MAND system is ideal for both new and retrofit installations. Typically installed at the furthest fixture from the Water heater, D MAND fits out of the way, under any bathroom vanity. Connections are made from the hot and cold lines to the suction and discharge side of the pump using adapter tees and stainless flex lines provided. When hot Water is needed, the pump is activated by pressing a starter button, runs only long enough to supply hot Water to the fixture and then automatically stops. This prevents hot Water from entering the cold line. A spring-loaded Integral Flow-Check valve (IFC ) prevents cold Water from entering the hot line. Optional wireless RF or motion sensor starters are also available. Domestic Hot Water RecirculationIdeal for Tankless Water HeatersFeatures and Benefits of the Taco D MAND system Instant Hot Water Comfort Maximum Water & Energy Savings 24 Hour "On-Demand" operation Maintenance free circulator - unmatched reliability Removable stainless steel cartridge - contains all moving parts UL, IAPMO listed Patented D MAND electronics control board Integral Flow-Check (IFC )

9 To prevent thermo-siphoning or gravity flow Pre-wired power cord and integral temperature sensor Adapter tees & stainless steel flex lines included RF wireless remote or motion sensor starter-optionalTank TypeWaterHeaterWaterHeaterTankTanklessWa terHeaterTanklessWaterHeaterCITY Water SUPPLYCOLD Water LINECITY Water SUPPLYCOLD Water LINEHOT Water LINEHOT Water LINERETURN LINER emoteActivationRemoteActivationRemoteAct ivationRemoteActivationHotWaterSupplyVal veColdWaterSupplyValveHotWaterSupplyValv eColdWaterSupplyValveRemoteActivationMot ion Sensor orStarter ButtonActivationMotion Sensor orStarter ButtonActivationD MAND SystemElectronicControlsHeatSensorRemote ReceiverD MAND 554-1 554-2 554-3 554-4 Motion Sensor KitD Mand system Accessories Description RF Remote Transmitter/Reciever KitRF Individual Remote Transmitter ButtonHardwired Individual Starter Button RoundD'MAND system AccessoriesSizing Your D'MAND SystemSize of HomeSmallMediumLarge/CommericalTotal length of Pipe (ft)50100 Over100 Tank Type Water HeaterModel006-DM-PK008-DM-PK0011-DM-PKT ank Type Water HeaterSize of HomeSmall / MediumLarge/CommericalTotal length of Pipe (ft)<6060+Tankless Water HeaterModel008-DM-PK0011-DM-PKTankless Water HeaterStandard Piping: Recirculation Piping:Size of Home Small Medium Large/Commerical Total Lengthof Pipe (ft.)

10 100200200 +Re-Circ Tank Type Water Heater Model 006-DM 008-DM 0011-DM Performance Field Information - 60 HzFLOW-GPM012345678910 TEEF-DAEH LATOT024681012141618202224262830 FLOW-M3 008-DM-PK 0011-DM-PK 12313D MAND system MODELS2 Tank Type Water HeaterSize of HomeSmall / MediumLarge/CommericalSq. Ft.<25002500+ReCirc Tankless Water HeaterModel008-DM0011-DMTankless Water HeaterRF WirelessStarter Inc., 1160 Cranston Street. Cranston, RI 02920 / (401) 942-8000 / Fax (401) 942-2360 Taco (Canada) Ltd., 8450 Lawson Road, Unit #3, Milton, Ontario L9T 0J8 / (905) 564-9422 / Fax (905) at 40%, Centered (In place of Do it Once. Do it right on Catalog Sheets) NOTE: Remove Hydronic Components & Systems