Weil-McLain 105, 80, 230, 310, 155 manual Dimensions

Page 43

10 GAS-FIRED WATER BOILER — Boiler Manual

Dimensions

Notes 1. Boiler supply and return tappings are both 1" NPT (Ultra-

and 1¼" circulator flanges are shipped with boiler on Ultra-

80/105/155/230) or 1¼" NPT (Ultra-310). See pages 14

80/105/155/230. Both 1¼" and 1½" circulator flanges are

through 18 for recommended system supply and return

shipped with boiler on Ultra-310.

piping sizes. Wall-hung boilers: water piping and gas pipe

3. Relief valve is shipped loose. See page 11 for mounting

can be routed through bottom of enclosure using wall-

details. Relief valve mounts on supply pipe off of supply

mounting kit.

tee and ¾" street elbow as shown.

 

2. Boiler circulator is shipped loose. Circulator may be

 

mounted on either boiler supply or return piping. Both 1"

 

Part number 550-101-233/0903

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Contents Gas-fired water boiler HOW IT Works GAS-FIRED Water BOILER, with PhD Technology Hazard definitions ContentsBoiler water When servicing boilerPlease read before proceeding Boiler operationProvide clearances Installations must comply withPrepare boiler location Before locating the boiler, checkVent and air piping Residential garage installationFlooring and foundation Provide air openings to roomPrevent combustion air contamination When removing a boiler from existing common vent systemSeal any unused openings in the common venting system Remove boiler from crate Prepare boilerPrepare for propane if operating on propane Ultra-80 Set boiler in place and check level Prepare for propane if operating on propane Ultra-155 toPlacing floor-mounted boilers Placing wall-mounted boilersDrain and remove fittings Perform hydrostatic pressure testPrepare boiler for test Fill and pressure testGeneral piping information Install water pipingInstall relief valve Additional controls, when requiredCirculators System water piping methodsSizing space heat system piping Required boiler water flow rate, GPM, at 180F Sizing DHW system pipingConnect boiler to system as shown in when Zoning with zone valvesControlling the system circulator Zoning with circulators Radiant heating applications Setting boiler outlet water target temperatureChilled water system plus optional Chilled water systemsVenting, combustion air & condensate line Install vent and combustion air pipingPrepare condensate fittings Condensate drain Ultra-80 Connect condensate drainGas piping Connecting gas supply pipingWall-mounted boilers Natural gas supply pressure requirements Natural GasPropane Gas Pipe sizing for natural gasFill and test water system Freeze protection when usedStartup Check/control water chemistryTo start the boiler Check for gas leaks Final checks before starting boilerCheck thermostat circuits Inspect/fill condensate systemCheck system and boiler Adjust and test boiler controlsCheck flame & combustion Check-out/startup verification Check-out/startup verification Installation certificate Service and maintenance schedules Annual startup and general maintenanceHandling ceramic fiber materials Annual startupCheck air openings Clean condensate trapCheck water system Check all piping for leaks Check expansion tankCheck boiler relief valve Check ignition ground wiringCheck all boiler wiring Check control settingsCheck burner flame Check flame signalCheck flue gas temperature Perform startup and checksReplace boiler jacket front door after startup or servicing Maintenance generalGeneral maintenance Cleaning boiler heat exchangerAccess exchanger Ultra-155, -230, -310 Only Maintenance and annual startupExchanger cleaning ALL models Replacement parts Jacket parts Replacement parts Heat exchanger and piping Ultra-80 Replacement parts Heat exchanger and piping Ultra-155 to Replacement parts Controls Dimensions DOE Ratings
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