Nordyne CMF95 Series Installation Instructions

11
CIRCULATING AIR REQUIREMENTS
WARNING:
Donotallowcombustionproductstoenterthe
circulating air supply. Failure to prevent the
circulation of combustion products into the
livingspacecancreatepotentiallyhazardous
conditions including carbon monoxide
poisoningthatcouldresultinpersonalinjury
ordeath.
Allsupplyductsmustbesecuredtothefurnace
withsheetmetalscrewsandadequatelysealed.
Whensupplyairisprovidedthroughthebottom
oftheunit,thejointbetweenthefurnaceand
theplenummustbeairtight.
Thesurfacethatthefurnaceismountedonmust
providesoundphysicalsupportofthefurnace
withnogaps,cracksorsaggingbetweenthe
furnaceandtheoororplatform.
Supply air ducts must not be connected to
any other heat producing device such as a
replaceinsert,stove,etc.Thismayresultin
re, explosion, carbon monoxide poisoning,
personalinjury,orpropertydamage.
Plenums & Air Ducts
Thisunitisdesignedonlyforusewithabottomsupply
duct and must be installed in accordance with the
standards of the National Fire Protection Association
Standard for Installation of Air Conditioning Systems
(NFPA90A),StandardforInstallationofResidenceType
WarmAirHeatingandAirConditioningSystems(NFPA
90B),andallapplicablelocalcodes.NFPApublications
are available by writing to: National Fire Protection
Association,BatterymarchPark,Quincy,ME02269orvisit
www.NFPA.orgontheweb.
• Designtheairductsaccordingtomethodsdescribed
bytheAirConditioningContractorsofAmerica(ACCA).
• Air ducts must be aluminum, tin plate, galvanized
sheetsteel,orotherapprovedmaterialsforoutletor
returnairducts.Snap-LockorPittsburgh-Lockseams
arepreferred.Allothertypesofseamsmustbemade
tighttopreventleakage.
• Itisgoodpracticetosealallconnectionsandjoints
with industrial grade sealing tape or liquid sealant.
Requirements for sealing ducts vary from region to
region. Consult with local codes for requirements
specictoyourarea.
• Gaspipingmustnotruninorthroughanyoftheair
ductsystem.
SupplyAirConnections
• Thesupplyductsystemmustbedesignedsothatthe
staticpressuremeasuredexternaltothefurnacedoes
not exceed the listed static pressure shown on the
furnaceratingplate.Thesupplyairmustbedelivered
totheheatedspacebyduct(s)securedtothefurnace
casing,runningfulllengthandwithoutinterruption.
• Duct system must be designed so that no supply
registersarelocatedinductsystemdirectlybelowthe
furnace.
Dampers
Anautomatedshutoffdamperisrequiredwhenthehome
is air conditioned by a self-contained unit. A damper
is required to prevent chilled air from owing over the
furnaceheatexchanger.Thisdamperisdesignedtot
inthefeederductcavity,directlyunderthefurnace.For
properinstallation,refertotheinstructionsprovidedwith
thedamper.Seereplacementpartslistprovidedonline.
UnconditionedSpaces
Allductworkpassingthroughunconditionedspacemust
beproperlyinsulatedtominimizeductlossesandprevent
condensation.Useinsulationwithanoutervaporbarrier.
Refertolocalcodesforinsulationmaterialrequirements
Closet Installations
WARNING:
Failure to comply with the the following
instructionsmayresultinre,asphyxiationor
carbonmonoxidepoisoning.
For proper air circulation, closet installations require
a return air grill installed in the door or side wall that
exchangeswiththelivingareaofthehomeasshownin
Figure6.Apartiallylouvereddoormayalsobeusedacross
theopening.Returnairopeningsshouldnotbelocatedto
drawairdirectlyfromabathroom.Grillesplacedinaside
Figure 6. Closet Installation

Nordyne CMF95 Series Specifications

General

Brand	Nordyne
Model	CMF95 Series
Category	Furnace
Language	English