Manuals / Weil-McLain / Household Appliance / Water Heater

Weil-McLain PLUS-E017-A/1206 manual Gas boilers only continued, B3 Field wiring

Models: PLUS-E017-A/1206

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Page 32

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PLUS LINE Indirect-Fired Water Heaters – Series 3

gas

B3 Field wiring —

Gas boilers only (continued)

Figure 19

Low voltage field wiring connections

Summer/winter switch (item 7) — Install a summer/winter switch, if desired, to disable the boiler (space heating) circulator during non-heating months. Connect switch across the outdoor sensor terminals. When switch closes, the boiler circulator is disabled and the boiler operates only on call for DHW heating.

32	Part Number PLUS-E017-A/1206

Page 32

Image 32

Weil-McLain PLUS-E017-A/1206 Gas boilers only continued, B3 Field wiring, PLUS LINE Indirect-FiredWater Heaters - Series

Contents

Installation MaintenancePLUS Line ManualRead this page first PLUS LINE Indirect-FiredWater Heaters - SeriesHazard definitions Hot Water Can ScaldContents A1. Pre-installationA3. Water heater wiring A5. Adjusting water heater temperatureContents continued B1. Install system water piping space heatingB2. Install boiler-to-waterheater piping Field wiringZoning with 4-wirezone valves Zoning with 3-wirezone valvesMultiple water heater applications Steam boiler applicationsA1 Pre-installation CodesLocation Recommended clearancesA1 Pre-installation continued restrictionsCode restrictions National Standard Plumbing Code Uniform Plumbing CodeTemperature & pressure T & P relief valve Water heater pipingAir vent PLUS LINE Indirect-FiredWater Heaters - SeriesGOLD Plus 30/40/60/80 Option A2 Water heater pipingcontinuedDrain valve GOLD Plus 30/40/60/80 or Plus 40/60/80 Option A2 Water heater pipingcontinuedPLUS LINE Indirect-FiredWater Heaters - Series Drain valveDrain valve PLUS 100/110/119 OptionA2 Water heater pipingcontinued A2 Water heater pipingcontinued PLUS LINE Indirect-FiredWater Heaters - SeriesDrain valve PLUS 100/110/119 OptionA2 Water heater pipingcontinued Thermal expansion Water hammerGeneral piping information Boiler water Domestic water pipingA2 Water heater pipingcontinued PLUS LINE Indirect-FiredWater Heaters - SeriesWater heater wiring Water heater thermostat connectionA4 Water heater start-up Filling the inner domestic water tankFilling the outer boiler water tank PLUS LINE Indirect-FiredWater Heaters - SeriesAdjusting Water Heater Temperature Water Heater MaintenanceA4 Water heater start-up continued Water Heater Start-UpA5 Adjusting water heater temperature General notesPLUS LINE Indirect-FiredWater Heaters - Series Hot Water Can ScaldA5 Adjusting water heater temperaturecontinued Setting the thermostatSetting the thermostat Factory SettingA6 Water heater maintenance Maintenance schedule - annual service technicianMaintenance schedule - monthly homeowner Homeowner monthly maintenance to includeA6 Water heater maintenancecontinued Filling DrainingDraining inner domestic water tank Draining outer boiler water tankTime delay at fixtures Connecting to the water heaterA7 Recirculation and heat tracing Components requiredProblems Recirculation componentsComponents OperationB1. Install system water piping Gas-firedboiler applicationsB2. Install boiler-to-waterheater piping Field wiringSystem water piping methods Expansion tank and make-upwaterBoiler circulator Sizing space heat system pipingZoning with zone valves PLUS LINE Indirect-FiredWater Heaters - SeriesZoning with circulators Manual Installation Start-Up UsageMaintenance Parts Install boiler-to-waterheater piping Combined space heating/water heating applicationsDedicated water heating-onlyapplications PLUS LINE Indirect-FiredWater Heaters - SeriesNotes Tables 3 and 50F domestic water inlet temperature190F boiler water temperature leaving Gas boiler Circulator and pipe sizes as given in the TablesB3 Field wiring Installation must comply withWiring boiler circulator Wiring water heater circulatorWiring a system circulator Routing line voltage wiringOutdoor temperature sensor Manual Installation Start-UpPLUS LINE Indirect-FiredWater Heaters - Series Gas boilers only continuedB3 Field wiring Water heater operation setup Set space heating target temperatureB4 Start-up Follow boiler manualVerify water heater operation Operating informationReplace jacket front door B4 Start-upConnecting a water heater to a steam boiler C Boiler-sidepiping except GasGOLD PLUS 30/40/60/80 or PLUS 40/60/80PLUS LINE Indirect-FiredWater Heaters - Series Wiring optionsC Boiler-sidepiping except Gas continued C Boiler-sidepiping except Gas continued Primary/secondary pipingWiring options Wiring options C Boiler-sidepiping except Gas continuedPLUS LINE Indirect-FiredWater Heaters - Series Primary/secondary pipingWeil-McLaindoes not represent that this drawing meets any particular mechanical or Wiring optionsC Boiler-sidepiping except Gas continued tions C Boiler-sidepiping except Gas continuedPLUS LINE Indirect-FiredWater Heaters - Series C Boiler-sidepiping except Gas continued applicationsC Boiler-sidepiping except Gas continued PLUS LINE Indirect-FiredWater Heaters - SeriesMultiple water heaters domestic water pipingsee legend and details in Figure 26, page this diagramC Boiler-sidepiping except Gas continued Connecting water heater to steam boiler To fill the boiler and water heaterSpecial considerations C Boiler-sidepiping except Gas continuedLock or remove the handle from valve 7 after adjusting C Boiler-sidepiping except Gas continuedD Boiler-sidewiring & controls except Gas Zoning with pumpsZoning with zone valves Zoning with 4-wirezone valvesBoiler Models CirculatorsZone Valves PLUS LINE Indirect-FiredWater Heaters - Series Typical wiringSystem piping Figure Typical wiring Primary/secondary piping sys- temsPump zones System pipingFigure Typical wiring PLUS LINE Indirect-FiredWater Heaters - SeriesSystem piping Primary/secondary piping sys- temsFigure Typical wiring Boiler loop pump for primary/ secondary piping systems, as in Fig- ure 21, page 37 should be powered by the boiler control or transformer/ relay for packaged residential boilers. Provide a pump relay for this pump when pump relay is not provided with boilerSystem piping Primary/secondary piping sys- temsTypical wiring Domestic priority optional controller switchRefer to Wiring requirements on page Apply this wiring to systems inThese drawings are conceptual only. They show representative piping components and Figure Typical wiringSystem piping Figure Typical wiring PLUS LINE Indirect-FiredWater Heaters - SeriesSystem piping These drawings are conceptual only. They show representative piping components andThese drawings are conceptual only. They show representative piping components and Figure Typical wiringSystem piping Figure Typical wiring PLUS LINE Indirect-FiredWater Heaters - SeriesSystem piping These drawings are conceptual only. They show representative piping components andThese drawings are conceptual only. They show representative piping components and Figure Typical wiringSystem piping Figure Typical wiring PLUS LINE Indirect-FiredWater Heaters - SeriesSystem piping These drawings are conceptual only. They show representative piping components andThese drawings are conceptual only. They show representative piping components and Figure Typical wiringSystem piping Pump relays Figure Typical wiringPLUS LINE Indirect-FiredWater Heaters - Series System pipingB.PLUS 100, 110 or E Replacement parts - Series 3 onlyA.GOLD Plus 30, 40, 60 or Plus 40, 60 or E Replacement parts continued GOLD Plus 30/40/60/80 or PLUS 40/60/80Series PLUS LINE Indirect-FiredWater Heaters - SeriesDescription SizeManufacturer E Replacement parts continuedE Replacement parts continued PLUS LINE Indirect-FiredWater Heaters - SeriesPLUS 100/110/119 SeriesReplacement parts - PLUS 100/110/119 Series E Replacement parts continuedDescription SizeF Water heater dimensions PLUS LINE Indirect-FiredWater Heaters - SeriesWater HeaterF Water heater performance ratings Parts and Accessories Weil-McLainLimited WarrantiesResidential & Commercial Cast Iron Boilers Indirect-FiredWater Heaters