Owner's manual

Model 702G/O Advanced gas/oil burners — Instruction manual
Carlin part number MN702GO Rev. 06/23/14
– 7 –
Where appliance instructions differ from this manual, follow the appliance instructions.
2. Prepare site • assemble burner • mount burner (continued)
Combustion air/ventilation openings
Sizing air openings
Followallapplicablecodesandtheapplianceinstructionmanual(when
available)tosizecombustionairopenings.Usethefollowingguidelines
whenapplianceinstructionsarenotavailable.
• Allairfrominsidebuilding(buildingmustbewell-ventilated):
 Sizeairopeningsforafreearea(afterlouverdeduction)ofatleast1
squareinchper1,000Btuhinputofallappliancesinthespace.
• Allair throughopenings directlyfrom outsidethe buildingthrough an
adjacentoutsidewall:
 Ifairopeningsconnectdirectlytooutside,providetwoopenings,one
within12inchesoftheceiling,theotherwithin12inchesoftheoor.
Eachopeningmusthaveafreearea(afterlouverdeduction)of:
• Ifdirectlythroughsidewall:1squareinchforeach4,000Btuhofall
appliancesinthespace.
• Ifthroughverticalducts:1squareinchforeach4,000Btuhofallappli-
ancesinthespace.
• Ifthroughhorizontalducts:1squareinchforeach2,000Btuhofallap-
pliancesinthespace.
Locating air openings
Followallapplicablecodesandtheapplianceinstructionmanual(when
available)tosizecombustionairopenings.RefertoFigure2whenap-
plianceinstructionsarenotavailable.
Estimating free area
Whenspecicinformationonthefreeareaoflouversisnotavailable,
estimatefreeareaasfollows:
1. Woodlouvers—freearea=areatimes0.25.
2. Metallouversorgrilles—freearea=areatimes0.60.
3. Screens,whenusedmustbenosmallerthan¼inchmesh.
Motorized vent dampers
Wiretheventdamperendswitchtopreventoperationoftheburneruntil
theairopeninglouversarefullyopen.
Combustion air/ventilation opening checklist
• Verifythatairopeningsareunobstructed.
• Verifythatappliancespaceandairsourcespacesarefreeof:
• Gasolineorotherammableliquidsorvapors.
• Combustiblematerials.
• Aircontaminants,suchaslaundryproducts,paint,thinner,varnish,etc.
• Conrmwithuserthattheareawillbekeptfreeofthesematerialsat
alltimes.
Figure 2 Locating combustion air/ventilation openings
Appliance
Minimum
24 inches above
grade or snow line
Air opening
Where air opening is high on the wall,
duct to within 12 inches of the floor
 Installingtheburner/applianceinaspacethatdoes
notprovideenoughairforcombustionandventila-
tioncanresultinseverepersonalinjury,deathor
substantialpropertydamage.Followallapplicable
codesandguidelinesbelowtoensurespacehas
sufcientairopenings.
 Exhaustfans and negative pressure conditions
—Isolatetheboilerroomfromareassubject to
negativepressure.Sizecombustionairopenings
toensureneutralairpressureintheboilerroom
whenevertheburneroperates.
 Makesurethespaceprovidesenoughventilation
topreventoverheatingoftheappliance,burnerand
controls.Ifthereisriskofoverheating,youmust
installventilationairopeningssizedlargeenough
toprovideairforcoolingtheequipment.Failureto
provideventilation can result in severe personal
injury,deathorsubstantialpropertydamage.
 Thespaceandcombustionairsupply must not
containcorrosive contaminants,suchas laundry
products,paints,varnishesorotherchemicals.