Bosch Appliances GWH 260 PN/HN2, GWH 425 PN/HN4GWH 4254 manual Service valve Sink Flow direction

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Applications manual

 

 

3.1.2Powerstream Pro electric point-of-use tankless water heater PowerstreamPro point-of-use water heaters come in four models to serve a wide range of applications. Finding the right model depends upon your desired temperature and flow rate. Use the table below to find the model best suited to your customer‘s needs. Flow controls and faucet aerators can greatly enhance performance.

Note: Water heater must be filled with water and purged of air prior to supplying power.

cold supply

hot

Powerstream Pro

RP1P, RP2P, RP3P,

RP7P, RP9P, RP12PT

hot cold

cold supply

hot

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Powerstream Pro

 

cold

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RP1P, RP2P, RP3P,

 

 

 

 

 

 

 

 

 

 

 

RP7P, RP9P, RP12PT

 

 

 

 

 

 

 

 

 

 

 

 

 

hot

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symbols

Service valve

Sink

Flow direction

Note: This drawing is conceptual in nature and does not address all design, installation or safety considerations.

Additional safety and/or auxiliary equipment may be needed. This diagram is for reference use by officials, designers and licensed installers.

It is expected that installers have adequate knowledge of accepted industry practices for the equipment, procedures, and applications involved. Drawing is not to scale.

Drawing # POU2

CN rev 06/07

Application manual 11.2007

Bosch Water Heating

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Contents Applications manual Table of Contents Introduction Sizing by Chart Sizing tankless water heatersDefinitions Rule of thumb sizingGas Appliance Sizing Chart Features GWH 715 ES Installation SpecificationsApplications manual GWH 715 ES Installation Clearances Installation guidelinesGWH C 800 ES Technical Specifications GWH C 800 ES Installation SpecificationsGWH C 800 ES Installation Clearances Description Min Distances Outdoor Installation for GWH 715 ESGWH C 800 ES GWH 345 ESR Technical Specifications GWH 345 ESR Installation SpecificationsGWH 450 ESR Installation Clearances GWH 450 ESR Installation Specifications GWH 450 ESR Technical SpecificationsGWH 425 EF Technical Specifications GWH 425 EF Installation SpecificationsGWH 425 EF Installation Clearances GWH 425 HN Installation Specifications GWH 425 HN Installation ClearancesGWH 425 HN Technical Specifications Establish a one-foot rise before any elbowsGWH 425 PN Technical Specifications GWH 425 PN Installation SpecificationsGWH 425 PN Installation Clearances GWH 260 PN Technical Specifications GWH 260 PN Installation ClearancesGWH 260 PN Installation Specifications Electrical requirements Maximum flow rate at given temperature riseTechnical Specifications Powerstream Pro RP1P, RP2P, RP3P, RP7P, RP9P,RP12PT Ariston Pro GL2.5Ti, GL4Ti, GL8Ti Introduction Point-of-use applicationsPotable water Temperature and pressure Service valveRelief valve SinkService valve Sink Flow direction Temperature and pressure relief valve Sink Service valves Low flow Flow direction ShowerService Sink valves Powerstream Pro RP17PT or RP27PTPowerstream Pro whole house applications Standard tub fixtureHotCold Symbols Bosch ProTankless gas water heaterHot Cold Parallel unit applications Pressure relief valves Bosch GWH 715 ES Bosch GWH C 800 ESCascading unit applications GWH 715 ES and GWH C 800 ES cascadingPressure Bosch GWH 345 ESR Bosch GWH 450 ESR Single unit tank loading application plumbing diagramCold water Feed DHW Single Unit Tank Loading Electrical Diagram ESR control BoardRadiant space heating and DHW plumbing diagram Cold waterFeed External storage tankRadiant Space Heating and DHW Electrical Diagram Radiant space heating and DHW electrical diagramBosch GWH 345 ESR, Bosch GWH 450 ESR Fan coil space heating and DHW plumbing diagramFan Coil Cold water Fan Coil Space Heating and DHW Electrical Diagram Fan Coil space heating and DHW electrical diagramDrawing # BB OL RevA 10/07 Baseboard Space Heating and DHW Electrical Diagram Drawing # Bbaol RevA 10/07 Pkps Insulate piping Cold water feed Terminal box Baseboard Radiant Panel Back Flow preventerDrawing # EID Bbol CN revA 10/07 Descaling procedure Circulating pump Flow direction Filter Service valves Applications manual Applications manual Applications manual Applications manual BBT North America Corporation