Nordyne CMF95 Series Installation Instructions

19
RemovingTheBurnerOrices
1.SetthethermostattotheOFFposition,oritslowest
temperaturesetting.
2.ShutOFFthegassupplyatthemanualshutoffvalve
locatedoutsideoftheappliance.
3.Turnoffallelectricalpowertotheappliance.
4.Removethedoorfromtheburnerboxbyremoving6
screws.
5.TurnthegasvalveON/OFFknobtotheOFFposition.
SeeFigure14.
6.Removethewiresfromtheterminalsofthegasvalve.
7.Removethesupplygaspipingfromthegasvalveinlet.
8.Carefullyremovefourscrewssecuringthegasmanifold
assemblytotheburnerassembly.
9.Set the screws aside and remove the gas manifold
assemblyfromtheappliance.
10.Carefully remove the burner orices from the gas
manifoldassembly.
11.Read the rating plate afxed to the appliance to
determineitsratedinput(Btu/hr)andthesizeofthe
factoryinstalledorices.
 IMPORTANT: Before installing an orice, check
thesideorfaceoftheoriceforthedrillnumber
toensurethatitistheappropriatesize.
12.InstalltheappropriateLP/Propanegasburnerorices
intothegasmanifoldassembly.NOTE:Theoricesare
includedwiththefurnace. Topreventcrossthreading,
handtightentheoricesintothegasmanifoldassembly
untilsnug,thentightenwithawrench.
13.Unscrewthegasvalvepressureregulatorcapmarked
NAT.InvertthecapsoLPfacesup.Reinstallthecap
andtightenuntilsnug.MakesureLPisvisibleafter
conversion.
GasPressureVerication
MeasuringtheSupplyGasPressure
1.TurnOFFthegassupplyatthemanualvalvelocated
ontheoutsideoftheunit.
2.Usinga3/16”Allenwrench,removetheplugfromthe
inletpressuretap(INLETsideofgasvalve).SeeFigure
13(page18).
3.Installan1/8”NPTpipethreadtting,thatiscompatible
withaManometerorsimilarpressuregauge.
4.ConnecttheManometerorpressuregaugetotheInlet
PressureTap.
5.TurnONthemaingassupplyatthemanualvalve.
6.Checkand adjust the incoming gas line pressure to
11.0-14.0inchesWaterColumnforLP/Propanegas.
7.TurnOFFthegassupplyatthemanualvalve.
8.DisconnecttheManometerorpressuregauge.
9.RemovetheNPTttingandreinstalltheINLETpressure
tapplug.Handtightentheplugrsttopreventcross-
threading.Tightenwith3/16Allenwrench.
Figure14.OriceRemoval
Burner Box
Orifice
(X4)
Gas Valve
Gas Manifold
Burner Box
Door
(X4)
(X6)
WARNING:
DonotuseTeontapeorpipejointcompound
ontheoricethreads.Theholeintheorice
maybecomeblockedandcausere,explosion,
propertydamage,carbonmonoxidepoisoning,
personalinjury,ordeath.
14.Reinstall the gas manifold assembly to the burner
assemblywiththe4screws,thatwereremovedearlier.
NOTE:Itisimportantthatthecenteroftheorices
arealignedwiththecenteroftheburners.
15.Reinstalltheburnerboxdoorwiththe6screwsthat
wereremovedearlierinstep4.
16.Reconnectthegaspipingtothegasvalveinlet.
17.Reconnectthewirestothegasvalveterminals.

Nordyne CMF95 Series Specifications

General

Brand	Nordyne
Model	CMF95 Series
Category	Furnace
Language	English