Operating instructions

Provisionforcombustionandventilationairmustbe

inaccordancewiththeNationalFuelGasCode,ANSI

Z223.1-latestrevision,orapplicableprovisionsofthelocal

buildingcodes.

Besuretoprovideenoughfreshairforcombustion.

Enoughairinsurespropercombustionandassuresthatno

hazardwilldevelopduetothelackofoxygen.

Youmustprovideforenoughfreshairtoassurepropercombustion.

Thefireintheboilerusesoxygen.Itmusthaveacontinuoussupply.

Theairinahousecontainsonlyenoughoxygentosupplytheburner

forashorttime.Outsideairmustenterthehousetoreplacethat

usedbytheburner.Studyfollowingexamples1and2todetermine

yourfreshairrequirements.

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Ifyou use a fireplaceor a kitchen or bathroom exhaust fan,

you should install an outside air intake. These deviceswill

rob the boiler and water heater of combustion air.

Sizing Air/Ventilation Openings

Air openings must be sized to handle allappliances and

air movers (exhaust fans,etc.) usingthe air supply.For

air openings into spaces containing other appliancesin

addition to the boiler referto the National Fuel GasCode,

ANSIZ223.1for sizing.

If No Other GasAppliances InThe Same Space

Provide air openings into the boiler space as described in this sec-

tion and the National Fuel GasCode, ANSI Z223.1.Direct exhaust

installations require airfor combustion and ventilation. Direct vent

installations may require airopenings for ventilation (to prevent

overheating of boiler controls and boiler space).

When Other GasAppliances Share the Same Space

For airopenings into spaces containing other appliances in addition

to the boiler refer to the National Fuel GasCode,ANSI Z223.1for

sizing.