Ratings, Doe | Weil-McLain 155, 80, 230, 310, 105 guide

11	GAS-FIRED WATER BOILER — Boiler Manual
11
Ratings
	DOE

Notes

Notes 1. As an Energy Star Partner, Weil-McLain has determined that Ultra boilers meet the Energy Star guidelines for energy

efficiency.

2.Based on standard test procedures prescribed by the United States Department of Energy.

3.Net I=B=R ratings are based on net installed radiation of sufficient quantity for the requirements of the building and nothing need be added for normal piping and pickup. Ratings are based on a piping and pickup allowance of 1.15. An additional allowance should be made for unusual piping and pickup loads.

4.Ultra boilers require special venting, consistent with Category IV boiler. Use only the vent materials and methods specified in Ultra vent supplements. Ultra boilers must be direct-vented. Ultra-230 can be vented with either 3" or 4" vent pipe. Vent length limits for 3" vent are not as long as for 4" vent.

5.Weil-McLain Low temperature seasonal efficiency is based on ASHRAE 103 test method, using boiler return water temperature of 90°F, with boiler outlet water temperature of 110°F.

6.Combustion efficiency is based on I=B=R testing procedure BTS-2000, and equal to 100% minus flue loss.

7.Thermal efficiency is based on I=B=R testing procedure BTS-2000.

8.Weil-McLain Low temperature efficiency is based on the I=B=R testing procedures, using boiler return water temperature of 90°F and boiler outlet water temperature of 110°F.

9.Ratings shown are for sea level applications only. For altitudes from sea level to 5,500 feet above sea level, the Ultra boiler requires no modifications and automatically derates itself by approximately 4% per 1000 feet above sea level. For elevations above 5,500 feet, contact your local Weil-McLain sales office for details.

44	Part number 550-101-233/0903

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Weil-McLain 155, 80, 230, 310, 105 manual Ratings, Doe

Contents

Gas-fired water boiler HOW IT Works GAS-FIRED Water BOILER, with PhD Technology Contents Hazard definitions When servicing boiler Please read before proceedingBoiler operation Boiler water Installations must comply with Prepare boiler locationBefore locating the boiler, check Provide clearances Residential garage installation Flooring and foundationProvide air openings to room Vent and air piping Seal any unused openings in the common venting system When removing a boiler from existing common vent systemPrevent combustion air contamination Prepare for propane if operating on propane Ultra-80 Prepare boilerRemove boiler from crate Prepare for propane if operating on propane Ultra-155 to Placing floor-mounted boilersPlacing wall-mounted boilers Set boiler in place and check level Perform hydrostatic pressure test Prepare boiler for testFill and pressure test Drain and remove fittings Install water piping Install relief valveAdditional controls, when required General piping information Sizing space heat system piping System water piping methodsCirculators Sizing DHW system piping Required boiler water flow rate, GPM, at 180F Controlling the system circulator Zoning with zone valvesConnect boiler to system as shown in when Zoning with circulators Setting boiler outlet water target temperature Radiant heating applications Chilled water systems Chilled water system plus optional Prepare condensate fittings Install vent and combustion air pipingVenting, combustion air & condensate line Connect condensate drain Condensate drain Ultra-80 Wall-mounted boilers Connecting gas supply pipingGas piping Natural Gas Propane GasPipe sizing for natural gas Natural gas supply pressure requirements Freeze protection when used StartupCheck/control water chemistry Fill and test water system Check for gas leaks Final checks before starting boiler Check thermostat circuitsInspect/fill condensate system To start the boiler Check flame & combustion Adjust and test boiler controlsCheck system and boiler Check-out/startup verification Check-out/startup verification Installation certificate Annual startup and general maintenance Service and maintenance schedules Annual startup Handling ceramic fiber materials Clean condensate trap Check water systemCheck all piping for leaks Check expansion tank Check air openings Check ignition ground wiring Check all boiler wiringCheck control settings Check boiler relief valve Check flame signal Check flue gas temperaturePerform startup and checks Check burner flame Maintenance general General maintenanceCleaning boiler heat exchanger Replace boiler jacket front door after startup or servicing Exchanger cleaning ALL models Maintenance and annual startupAccess exchanger Ultra-155, -230, -310 Only 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 Ratings DOE