Bosch Appliances GWH 260 PN/HN2, GWH 425 PN/HN4GWH 4254 Applications manual

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4 8	Applications manual

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 Installation Speciﬁcations GWH C 800 ES Installation ClearancesGWH C 800 ES Technical Speciﬁcations Outdoor Installation for GWH 715 ES GWH C 800 ESDescription Min Distances GWH 345 ESR Installation Speciﬁcations GWH 450 ESR Installation ClearancesGWH 345 ESR Technical Speciﬁcations GWH 450 ESR Installation Speciﬁcations GWH 450 ESR Technical SpeciﬁcationsGWH 425 EF Installation Speciﬁcations GWH 425 EF Installation ClearancesGWH 425 EF Technical Speciﬁcations GWH 425 HN Installation Speciﬁcations GWH 425 HN Installation ClearancesGWH 425 HN Technical Speciﬁcations Establish a one-foot rise before any elbowsGWH 425 PN Installation Speciﬁcations GWH 425 PN Installation ClearancesGWH 425 PN Technical Speciﬁcations GWH 260 PN Installation Clearances GWH 260 PN Installation SpeciﬁcationsGWH 260 PN Technical Speciﬁcations Maximum ﬂow rate at given temperature rise Technical SpeciﬁcationsElectrical requirements Powerstream Pro RP1P, RP2P, RP3P, RP7P, RP9P,RP12PT Ariston Pro GL2.5Ti, GL4Ti, GL8Ti Point-of-use applications Potable waterIntroduction 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 Single unit tank loading application plumbing diagram Cold water Feed DHWBosch GWH 345 ESR Bosch GWH 450 ESR 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 diagramFan coil space heating and DHW plumbing diagram Fan Coil Cold waterBosch GWH 345 ESR, Bosch GWH 450 ESR 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