Nordyne MGHA-056A AA FC-02 User manual

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Downflow, DirectVent (Sealed Combustion)
Forced Air Gas and Oil Furnaces
Installation Instructions/Owners Manual
Includes Warranty and Replacement Parts Ust
Series MG, MM, MS and MB
For installatlon In:
1, Manufactured Homes
2AecreatioMI Vehicles, Park Models. Manulaetured Buildings
3. Modular HomesIBuildings
4Slle ConstructIOn -ResidenllaliCommerclal
FOR YOUR SAFETY
Do not5tore0rlisegasali "" or ot he rflammable II apors and IIq 1I1d 5
in Ihe vK:,nity 01 this or any other appliar>ce
AWARNING:
Improper Inslallatlon, adjustment, slter.lion, service or
ma;nlenanCfO can cauSe Injury or property damsg<!. ReIer 10
this manual. for assistance or additionallnlormatlon consult
a qualilied installer, aervice agency or the gas supplier.
FORYOUR SAFETY
WHATTO DO IFYOU
SMELL GAS
00 not Iry to IIgl11 any appliance.
•Do not touch any electncal swuch: do not use any phone In your
bu,ldlng
•Immediatelycali your gas supplierfrom ane,ghbor's phooe, Follow
the gas supplier's inSlrUClions.
If you cannot reach your gas supplier. call tile tire department
AWARNING:
Should overheating occur, or the gas supply lailto shut 011, shul
011 the manualg8S valve to the appliance belore 6hutling oN lha
electrical supply.
AWARNING:
00 not use this Bppliance il any part has been submerged under
water. Immediately calla ql1lllilied service technician to inspecl
tile appliance and to replace any pan 01 the conlrol system and
any gas control that has been submerg<ld underwater.
Leave these instrue!ions with the homeowner. Advise unit
owner/user to lollow the maintenance recommendations
outlined. Have a qualilil!d service technician periodically check
all wiring connections and service unit as needed.
NORDYNE
mamJ1ac'ur6r 01
/.-..... . ,. 11.11 " IQII ..
,~
MIIIE&
prooucrs
-
--
These instructoons are primarily intended to assist qualified mdiv,duals experienced mthe proper installat,on of heat,ng and!
or air condiliOnlng apphances. Some localcodesrequire lICensed installationservice personnel forlhlstype ofequIpment. Read
alllnstrlJCtlo~ carelully before starting the Installation

TABLE OF CONTENTS
WARRANTY,.
SPECIFICATIONS.
., ,,.,., ,.,.
OWNERS INFORMATION ...
MANUFACTURER WARRANTY, OWNER RESPONSIBILITY
..
INSTALLATION STANDARDS.
UNIT LOCATION ..
MINIMUM CLEARANCES,
RETURN
AIR PROViSiONS.....
AIR DISTRIBUTION SYSTEMS ..
ROOF JACK SELECTION
DUCT CONNECTOR SELECTION
INSTALLATION.".....
FLOOR OPENING AND FUEL LINE HOLE
CEILING AND ROOF OPENINGS
DUCT OPENINGS ......
FURNACE MOUNTING
PLATE.
DUCT CONNECTOR ..
FURNACE ."" .
ROOF
JACK. ." " "...
INSTALLATION
OF TRANSIT_MODE VENTING SYSTEM
ELECTRICAL WIRING
FUEL PIPING.
LIGHTING AND FURNACE SHLIT DOWN
STANDING PILOT
(MGHA MGHB, MGBB).
SEOUENCE OF OPERATION-STANDING PILOT
DIRECT IGNITION IMMHA, MMHB. MMBB, MBHA. MBBA)
..
SEQUENCE OF OPERATION_DIRECT IGNITION
INSTRUCTIONS-GAS GUN (MBHA. MBBA)
INSTRUCTIONS-OIL GUN IMSHA MSBA)
__
SEQUENCE OF OPERATION OIL GUN
SEOUENCE OF OPERATION GAS GUN
SERVICE GUIDE
BURNER ADJUSTMENT
GAS CONVERSION,
TROUBLESHOOTING
MAINTENANCE
ACCESSORIES
WIRING DIAGRAMS,
REPLACEMENT PARTS LIST IMG, MM)
REPLACEMENT PARTS LIST
1MB MSI '
..............." 4
. 5
,
.... ,7
.., .. ,7
. .. , ". .. e
.............. . e
,
.. ...." 9
'"
..... 11
"
"
"
...... 12
"
... 12
......"13
"
"
"
"
. .17
H
." 19
"
"
.~
"
"
~
.,,22
"
.. " .. ,........ , , .. """. ,,,22
....................,
.. , .. ,22
"
, .. ,,,24
." .. 25
............ 27
.. ~
.. 39
•
MGHA- ~!j§ AA Fe -02
"""'''00 ~ 1 ,:L"m~,
M-Mobile Home 0\ or 02
Fuel. Type 01 Combu.lion Special Uae
G·G"". Direct Vent. ATM Burner HR-HOl Su~ace. Dlrecl Ign,Ii<ln. 100% Shut·OII
B·Gas, Dlreci Vent, Gun Burner FC-Field
Corw,,~ible
M·Gas, Duecl Venl, Induced Dralt FO·Q;I
S·OiI. Direct
VenT. Gun Burner po-Starnlard Pilot w~nduce<l Dralt
Comfort Mode .;:: "
HA·AJC Adaptable
HB· 3
T"" AJC Rea<tytw"" rolav
BA_AlC
Adaptable up to 4tons
BB- 4Ton
AJC RM<tylwltl1 relay
C.l>i",,1
Oimen.ion.IH ~ W ~ 0)
A-56- <19,314-.23_314-)
B_W COli Callitv 176- x 19·314" x23·314")
LEfe<:lrlcal Coda
HMling Capacily A·1PHi60 HlI120 VAC
Input. BTUH 1000'0)
Tabla
2. Modell<!onliti""li"n
NORDYNE - manulaclurer ollntertherm and Miller produCIS. -------

--------------_0
THIS WARRANTY 1$ EFFECTIVE ON FURNACES INSTALLED AFTER JANUARY " 1994
NORDYNE
LIMITED WARRANTY
Gas, Oil, Electrical Furnaces and Electrical Heat Modules
installed in aManufactured Home.
Repls.c.ment """, cove'ogo
R~"""",' """" """1Ii1od """"' lho trrtrl$ Of tt-o, ... ".... Iy '-
'.nlod Of'<-! lOr thO '''''''''ndo' of "'" .. ,,,,,I c""o"'\10 0' tho <lelK """,
,0plac.O
.PPLI.NCE TRADE·IN OPTION
If • ,.placomon'Oea1 .,chorl'}O' ... nol "".,Ia~ 'O' tI>. mo<Ie< ',"naco
NORDYNE INC.,,;r1 no! , ...... 0 ,.,LInd lor t'>etum.>oo. bu' .............
C'_ to aNOIlDYNE INC <ll<t"""'o< to, .... hoa' .'dlango' TtHI 0'''''
,,;, bo pa.sed '" thO .. ""'. """""" II>tfI '" _ <>uri""""" o! tho
.........,. _bo ...- '0 .... p"o-cI'W.' ot a <>ow ""nac.
'T IS HIE SDLE RESPONSlB,UTY OF THE OWNERIUSER OF THE
.PPLIANCE TO SEE THaT THE APPLI.NCE IS PROPERLY M.IN·
T.INED .ND SERVICED OUR'NG TNE UFE OF THE .PPLI.NCE.
F.ILURE TO H.~E NOR .... L SER~ICE .ND .... INTEN.NCE PER·
FORMED
ON THE .PPUaNCE .... YVOlD .HIS W.RR.NTV,
HEaT UCH.HGER IGAS .ND Oll FURN.CES),
Hoat .'Ch<InIIOrs wt>och t~. """ to ,,, .. a. •• """"""0 I,,,,,, ... OOVOI'go ,I
o Hit c",,_ ... cooO<,,",,"' w •• ~10<110 ' ... t",,''OC' <I"c< """"""
"'1011<"11' """'"' _..,., _, "" "'" 1_ •. ,ttl>t .... ' '''''''''ngot
in ... oppOonc. ton """ 10 , .. lKl " ma"'''' 0< """"mo,,,'-oo .tlr'....
.Xj>O'o_ o! .... fiIII1 ya' o! oovo'OI/O "" "'" pan. bul """" Iho .. >1t>
"OUII"""'" ya,o! .... pan. NORDVNE INC ..... pr<Mdo. NOROYNE
'NC [>._. ,_,ulOn, ..... ,UChlIngo, at no 0"'-'9" wntch .... tie
"""""0<1 10 on """"",t",, H"""* hrm lor "",la1>OO """ ~
oppUan:r r,toght """,~. lor ,"" """''''''''-''\lO' ......., _ ....
01 thO """"",tuM, ot "'" ow>_.. Ubor """'9'" " ,opla<o _ "".t
.""hangooott., tho _yeo, .. .... ,...,.,.....,.. .... Of 'ho _rl ... , ot
tho opprlallCO
B"Y'I' protoe'"" pion, .'. av",I.~," 'h,ough yoo, NOADYNE INC
o.,""'u'o<. fix' pion p''''''do. yoo w,tIl ad<l""".1 yea" ol ..,"'".
protec,,,,n. rho bu-y .. 1""''''''''''' pia" """I be pmChaS"" wit"'" 180
day> I,,,,,, tho oat< ,he luma"" woo "."IIe<l. Conlac1. NOROYNE
INC
DlSlnOOlO, '" roo' .re. fOtmo,. do,. .... Tho homeown,,, poe'.1
,uppllo<l w,' h", IS ProdUCl h;>,. 1<$, ol NOR DVN EI NC o.s"tl"'"" lOt
YOU' ,~'.ronco
T <I ""'.,n warran'y .. "',,'" And ,.pI""",.,.", pan.
,Tho""'\1"')' ,oad 'ho ,pplr.aOCB warran'y in,,,,,,,,,,,,,,,.
2 M.k. oil,."",,, """"", ,.""""""ndo<l", '!wi nc.rr..ow<>or's
"",,,ual ""ppIIBd ""'h 'Ml.POIIa""o
3 II 'ho p,""'-m ,"I po .. "IS. oontO<:! ''''' wMCOIoo, .. , WhO
in .. alod 'ho 'PP~.OCB. '"
4 COnlllC' Ihe comp,my f,om whICh you p<Jfch .... <I ,tHI opplio"".
10' ... "'a,,,,<, 0' tho 0OO"4"lny .. ho in"allt<l tho II>ml>C.
S, 111c«tho' a","ance .. ne.<I"" c",,'acla NORDYNE 'NC
o.st~"'Ot ,n \'OU' are. IS<> •• """""'" ItS'),
6 II oil., loIIowltlQ ''''' .""". d •• c'''''''", you a'e .,,1 na....-.g
dolllCulty. conloct ' ... NOADYNE INC Tecr.-.ca.1 S<>"'lCe
~paNmen'ln S1. Loo,.. '-10
T.cnnic.1 ~fvi<:. Dop .. lmonl
NORDVNE INC
PO 8". 46yn
St.Louio, '-10 63146-6Y11
JI4·a1a~200
(NOl.: colll• .,I c.ll. will nol be oe".p'.dl
C.UTION:
U50 o! • ,. r>'ICO fl"" 00' ,,"'ho"'"" 0' OIl P'O"OO by NORDYNE 'NC, may
'.""' .... ""'" ondIor PO"'" """"JO''' .,c ... o! NORDYN" INC:.
_ ".","'y o"""',nco ."I'.ocn .. "" ..cnatgo' "'. "'" ,.,..,.,...
~'yOf " .. _'-UHf. """ no! pOyablo oy NORDYNE 'NC ..... 1 ... ''''''
'" part. O' U.,.,,,,,, to \Ill, "I'r>Ur>co 001 C<J<nP'l"'" ""'" 'IORDYNE
INC:.
""'9" 0""'0< """,",,,,,, """,.icot""", wntch '.-' "'" "",
"""' .. <.< _rsoly onoet "'" "'" ",,"'.''''11 etIO,oct."""" ... , v<>d ...
w""aOly
In ad,,,,,,,, '" P'"""""ll .... ,"""'. f"m '""" on "_w,,,""ty ,opI&<:omon'
pOrt •fIORD>NE INC dl,U."",,";1 poy .... 5Or>'ICO firm .... W>or
"""'I/O' based 00 NORDYNE INC:, .. orranty Iat>or , ... prooJ'am. Tho
labor .... bo paid lor _k perfort!*l <lur1ng .... iomdoo w",,,.,,ty pe,,,,,,
wntch "two .... "" from tho ""to o! purcnas. ot .... __ •.
FI~E YEAR P.RTS .ND rwD YEaR L.8DR COVER.GE,
If ""Y p'-rt 01 "" _"""'. t .. ,"""""",.., .. '" rnato ,., 0< _.~
ur.oo, ""'_ "" .M ,.""". ,,;""" I,.. yO"" 'rom oa,. o! ....
00_ PO'''''''' oa,. ot "", OfIr>Unc. I'" """'" '" .. '""" _nco
.... .-..taIoO ., """, ~I oq..o~), " NORDYNE INC Do'''"'''O'
WJI 'uwIY " 'oplac..".ro pan, ~ ,oq..o,"", ., no Ch'''I/0. '" " .. ""or."
aLJI"""".<I or""", Orm. F'toghl ChatI/O' lor .... ,.".."...- 0"" or ....
""* "spoo .... ~ty 01 .... appbatIC. """"',
THIS WARRANTY DOES NOT COVER,
,Con""'"11 .... Iu~. trom """ f"," 10 or>olhor
•"'dillS,.g tNI _, onll<,pa'or on hi lhorroos'"
J ""y _'0"''' 10 ' .. ".""traM. ",".,oneo """,_Iho irwdo
and OOJ"Id. of the """"OJ'.
• Notmal maonlonAnCO, ouch., 001 ""'LV. rer:<a<_n!. bI,.,
,~."""", .oo.
LIMJTATIONS:
n", .... rron'Y ""..-os ""'Y" NOROYNE INC oppI",,",., in'laIIed """
_,.,ed ..,.,... ... oont .......tal USA aM C""""" .., acoordanco ... m
NOAOYNE INC, ~~fIo:a1lOnS""" onlho&ppllar>co dola pIoto!
!.abo! and nstrucl>Dn. "'I»'*' _ tho &ppIoance: on<! """. not COIIor
I ..... duo 10 ~t, .. >USe, otIo.o. tavory ~I>O<I, or....,., .
'" oppIianco <:ootrols req<Jrod 10 .d."" "'" owl •..,. """'.,00<>10 ....
strucl",~ "'zo, 9~ophi<: Ioc._ 0' I ...... ""o<y
Tr.. warranty go"'" you """"fic ...... r<gnI< ,"" y<>.J may hlI"" 01_
,,!jilt. wntch v.", ~om ,ta'o'o ,ta, •. Some, .. , .. 00 oo'llilow 10m .. """,
"" ""'" Ion<) an ~ w .. ,.roy I .... or "" tho .,c<.,"'" 0' ~",1a""" of
"""""' ... or 0"",<>QUO "'ra1""rnaI/O', sothO.oovo 10m .. """ <.< .'0"""'"
rnay 00' aPI'iY to you
"fr.. lOa, ,...,ty" .... only .. pr ... w'''.'''Y "" "', ",,"""nc. _00 "' .....
"."maro. "1"."""_ or .go .. """'t by '"y PO''''''' 5IIllI .. >1Ii" or
"'"""-"\l "" flO R DYNE INC .• "1' im<>lo-:l 10""""''''", including mo"""""·
a"",ty,"'o OmllOO '0 tho.-.tIIIi ~\'O ,." PO""" o! .,., .. a"...,ty. NOR·
DYNE INC. "no! h"'''. tor any oonstqL .. nMl 0' """""'laI c .. ngo,
causo" by any ""toe' '" "" ",,"~.nc •. •
NORDVNE INC, "",,oN. ,oppliatw:o .~.,,, Iduo '" <loIOClS"
mo.t~","11>'ld w",'"",nS/>ol> , ""'mal u urvteo kY Iho benolJt
of hi o<9'Ia' """,",-uw, only, as •• ,forth Iow. ISub_ O'WJlers
""1 ot>toin ..... "''''nly ",_ "'-Y cootacl NO RDYNE INC. irl wr~oy
.,""v. "'" ~" ... fnod)_
Th<s w,,,.roy,, v<>d "'ho .. ""' _, .... t .. atll,"" '" .... appI.aoco
hlI' """'" ,",oov"". llit.,"" 0' "",oc""

t
f
r
NonCE TO INSTALLER
Installer is advised to follow carefully all instruc1ions and
warnings in this manual to insure maximum performance,
safety.andoperahngefficiency 01 these appliances, Improper
installation may create hazardous conditions. and will void
the appliance warramy_
1. SPECIFICATIONS
GENERAL DESCRIPTION
MG. MM, MS, and MB Series gas and oil fumaces are U.L.
Listed and CSA certified direct vent (sealed combustion).
downflow healing and appliances (or manufactured (mobile)
homes. recrealional vehICles. and for use In residentiaV
modular/commercial construction, The furnace must be
located so that venting can be property achieved,
"A" cabinet models may be Installed with Optional Coil
CalJlnet Model '911969 for air condltloning_
Mulli·spe&d. healinglcoolinQ blowers 1/3 HP (pin 9019981
are lactory'provlded On MGBB. MMBB, MSBA, and MBBA
models. Add~ionally. blowermodels 113 HP (pin 901998) and
1/2 HP (pin 901999) are cerl~led lor held inSlaliatlon in
tumacemodelsMG(H,B}(A,B);MM(H.B)(A,B);MS{H.B)(A,B):
and MB(H,B) (A,B}when use<J inconlunct,on w~h 2,wlre relay
(pin 9019S4); 5·w"e relay (pin 901995): and 2·wire relay
used wllh AlC ready units (MG(H.B)B and MM(H.B)B (pin
902649).
GA. "_"000.... AG.
.• "." ........
_ .. ,....,.
_"'''-0)-
_.•'....r
_"'''-0)-
-
..
'"
-
"--
"" "
...
~ .. "" """""
..
,.
..
" '0'
-_.
~
,"" "
"
..
" " •
-~ ..
..... L'
.. ".,',
0."
•0"
_.T""",_
". ..,
"-,,
". .,
.. "
"B" cab,nel models are tactory eqUipped with alJuilHn coil
cavity
'CSA 1"",,,,'OIJtolIl
TKlle 4. Ga. Almo.pheric Furnece.
liZ'" NFPT Gas \falvt Inlet
DESCRIPTION
DOS '''''COO ORA ...., ""'OCT"'''''''"
.'00'''_'.
$Iaoo,og P,lol Eieclrn:
Ignl!lon J Ion
_ .... ,"-"
-"-" .... ,_
......... ,
_"-",',0,
AIC 'daOlllbl, Hal $!IIMC"; r4JC readv w're/,jy -."".-
~- •""
""".,
MGHA-05M (A,6)FC MMHB-<l56A IA.BIHR
~-
.,
..
"
,,,,,.,
MGHA-O?OA (A,BIFC
MMH6·0?OA (A.B)HR
_0.0. ••
MGHA-O??A (A,BIFC -•,•
..
MMHB-onA (A.B)HR
..
" " " •
MGHA·090A IA_BIPO
MMHB-09OA (A_BlHR
_I ....... ,,·os
""
,,.
,>-I,
SraMmg PliOI 3 100 EI'Clric ignilion • 1M
·CS. ~'Outpul
NC agaglablll wlrelav HoI SUrfllC,1 NC rudy wlrei,y Tabl, 5. Ga. Forced Dr.ft. Direcl Ignition
MGHB-05M IA.BIFC MMBB·056 A6 HR
"" •• "" ""- 0 ... n_.e ..
MGHB-O?OA (A,6IFC MMB6·070 A6 HR
.• """ .........
MGHB-onA (A,6IFC MMB6·0n A6 HR
........ , .. ,
-."-", ....
........... "
-. ...... ,
- - - -
MGHB-090A (A,6IPQ MMB6-000 A6 HR ""w"
...,w,.
..."" .
_00
-•• -
••
StaMmg P,lot
,,~
Gas Gun !l!C r4dagla/*' -- " " ••
NC IIddOI.lQlft wl",tay MBHA-06SA (A.BlFC
._-
"•,"
-~.
MGBB-056 AB Fe MBHA-oaSA IA_BIFC
"""
MGBB·070 AB FC Gu Gun 4 1<10 NC ild.lglabi,
'0
"•
MGBB·on A6 FC MBBA·06M IA.SIFC "'-''''''
•••
.. '" .
MBSA·OSSA 'A.S'FC -
..
. ..
MGBB·09O AB PO
.... '''"'''.00
"-,,
"os
".,
,,-os
EI,ctt'" IgM.""
Oji Gun r41C Milglam,
Hoi S"'tace/r4/C i1aapw>!e MSHA-066A {A,B)FO Table
6. Gas A& Oil Gun Furnace.
MMHA-~A IA.BIHR MSHA-08SA IAB\FO
For Tables 4
".
MMHA-070A IA.BIHR Or/ aim. roa NC "<I4mobl,
Eleclr>cal Supply , , '" 120 \ro~s. roHz. IIPH
MMHA-OnA (A.BIHR MSBA-066A (A.B)FO Fuse
or Breaker 15 Amps
MMHA-09OA iA.BIHR
Th-errnosla. C"cuiL 24 \ro~s, roH•. 15 \rAe
MSBA-OSSA IA_BlFO
Nom. Anh::>palot Sell'''9
""""" ..
"" ... " ..
......""_ .. ,, 0.4
[
see 11>& lumaee labtllor listed opuonal aor c""d~jomn9
equipment.
NORDYNE· manufacturer of Intertherm and Miller products. _

----.
ABOUT YOUR CENTRAL
FURNACE SYSTEM Some specifIC examples of service calls whieh cannOI
be
Included in walfanly payments a'e'
ACAUTION:
COOn:otuty .......... 1hese respon$IbIlIIlf"""'vo..- rnanoJIaoctured
housng dealer. servK:fl COI'l"CI3nyor gas suppIIe. IOtnere_
be no 1nISI.IRderstandu>g al a tal" ,.....
1, Convelltng tM tumace 10 use anorhe. 1ype ot gas.
2Repalnng dld work ,n the home tound to be lautry
3Correcl<f'l9 wmng proDlems In Ina elecr"cal Cltcu,1
su~ngthelun;ace
4Resenltlg clrl;:\'" I>leal<ets or orne. SWl1Cne.s
5Com!c::IlnQprotllemsolHltomprope'gaaSUpplyP<flSUre
I<} rne tumace,
6Prow:I,ngInstructo::ltlal
tra,""'9 on how 10 hgl\!andoperate
the
lumace
7. Furnace problems caused by InslaHallon 01 an a,r
cond~""",r, hear pump or orner a" cornlOr1 d8Vrce1;.
8AcId"'ll aRool.Jack extensoon llKa ..... 01 ......... 1 WIfld
--,
9 ReVOSIfI9 IOStalla.lX:ln oIl1le lurnace I .... ~ (Roo!
-
10 AdjusI"'II or calbrarrng 01 tMrrnosla1
The manufacturer ot rhls tutnllCe has been Involved in lhe
de~n 01 productstortile manufacru'edhOrne,ndusrry Since
ItIe t,rsI mobile horne or Ira..... wn 001".
NOROVNE
ongon"..:t rile _I&d comtlU$l'On tySrem. whodl
separales the
tumace combus\lOn s~em rrom the IMtlg
...... 01 the home, now. Slandllldtor rile manutectu.-d I\ome
'ndusuy
NOROVNE etIQItlHlS <18 ... 100«I lilt' I~I central healing
system and
tne t'rsl cenlral ail con;lft,oner tor .....nu1ac1ured
.,~,
NOROYNE IS dedlcel&d 10 ~g rotl$CUSlomtrstheln:!'Sl
healing "tid
ooohng comlorl pclSSlbIe, NOAOVNE COO5Iantly
seeks 10 lunne. ret .... Il$ procIlIelS 10 QOf'IlIfIUOUsIy prOVIde
excePloona' c:orRoI1
Folow tne 0tlIIr\JdI0flS on U. 000lcIel caretuly and U.
appIIilnCe Wlil pn:lIIIOt ITIllny yeats 01 supeoor pertormence
dyou....sl'110 cool rour hOrne .utomelJCally ""'" acentrel ...
COf'<!llIOfW>g sysIem ~1~le IIlI! exce!lenl NOROVNE
~ systems avallabie from )'OUt heatrog and cooiono;I
conlracror TheM ')'$lams are GUIQIlI(110 WQrIl be$! wei
yourNOFlOVNEI.....-..ce.ndl\elle_ca~ .. 9"_,ed
IOdeWe.opIImUmptrlol.....nce wMnlTlllledWltllNOAOVNE
fTIoV"daetured IlOme lumac ..
NOROVNE alSOoftersWll-.hHter5. t ~ __ ""lin;
system5 specllleelly Geso;Jf'ld lor ........ ilCI ... ed hoosIng
aooIIca1lORS Cheek WIth your motIde home dealer. your
heahflg and COOhng contraclO, or )'Ou' dlSlrll:>Ulor 10'
'nlI'lrmallOn- Wrote dlreclty 10 11I41 tiOClory {PO eo. -4691 1, St
lOUIS. MO 631461 dyou are nol allie 10 locate asource lor
NOROVNE manuliOClu'ed l.ou ... '\9 produe\S on your a ...
•
•
•
Never anempt to alter or modify thl. fumace
or My 01 Its components.
Never attempt to repair damaged or Inoperable
components. Such acllon should ClUM
un,.fe operation, explosion and/or fire
uphyxiatian.
" • malfunction has occurred, or If you .HI
that the furnace i. not operating a. tt should,
contact a quaUlied Hrvica BiJIlncy or gas
1Jt1l1ty for assist.nce.
4. INSTALLATION STANDARDS
Installer shan be tal'l'llbar .... 11I and ~ Wlth aM COGel and
...gulanons apphcable
10 lhe onslallal.oon 01 1_ heatrog
appIlances and relale<1 equoprnent In Ioeu 01 local codes, tlla
inslallal.oon shan
be on accordance Wllh me cu.renl pr(MSOOI'lI
01 one or more or the lo1lowtng standards.
a. Federal ManulaClumd Hom.- C()n$tTUeloons &Sately
Standard (H.U,D, Title 24,
Pall 260)
b. Amencan NatIOnal
Slandard jANSI.119.2iT11FPA,
501 C) 10' al fec,eatlOMl ~l'IIele Ins'-llalOOns.
c. Aml'ncanNalKJnaI
$landa'd (ANSI·Z223,liTIIFPA·$t)
and/orC
... NlCGA614910r a~ 98S·t"edtu'nacemodels.
d. Amencan NallOnal Standard (ANSI·Z95,I
iTIIFP ... ·3l)
andlo' CSA 8139 10' all o,I·I"ed tumace moOels,
eAmer.canNallOnal Slanda,d(ANSI·CIiTIIFPA-70) and/
Of CSA 22,1 Canadian EJectnc CoOl PM 1to, an
electneal frek' w,nng
Iurms have been ,nvest,gated under slandards UL
NOROYNE· m.nul.clurer ollntert;rei~ grimIer prOducts. _
3. MANUFACTURER WARRANTY.
OWNER'S RESPONSIBIUTIES
Awarriltl1y cen,hcate Wllh lui datalls II 'ncluded w~h these
,nSlructoons. Howeve., NORDVNE
WlII nol be responSlbH! lor
any COSIS foundneee$$! ry to correctprotll-ems (lue to'mproper
setup,
""pfoper Itlslalllll>On. lu.nace adjustments, ~roper
operallng p,ocedufe on tile pan or the user, etc
IllS
1IIe so .. responM>lhty 01 rhe hOm&OWfler tomakecanaon
me
gas rumace has been correc:I'y WI uP an(l convened 10
the proper lue1lLP gas or Nalu-ral gaS) and a(llusled 10
operal" prOl*rIy .. ~s rumaces are manulaclure(l lor
NaturalgasandmU$l ~ tMllll convened wilen us'ng l, P, gas
r

5. UNIT LOCATION
The lurnace shall be appropnately located to the supply and
retum air dIstribution system. (See "AIR DISTRIBUTION".
Page 9) Sides and back of the furnace may be eoclosed by
wall framing. (See "Minimum Clearances: Table 7. and
Figures 3through 5.)
The furnace installation is only ,ntended for free air retum
Ihmugh thefurnace door louvers. DO NOT connectadueled
return a" sySlem directly to the fumace. Improper installalion
may createahazard and damage equIpment, aswell as void
all warranties.
Furnace maybe Installed on combustiblefloOring when USing
5elles-458 Duct Connectors (see Table 10 and FIgures 10·
17).
6. MINIMUM CLEARANCES
Th,s heat",," apphance must be Installed WIth clearances not
less than the minImUms shown In Table 7. ThIS heatIng
appliance must be Installed With ample clearance lor easy
acceSS to the air lilter. blower assembly. burner assembly.
controls, and vent connections.
Minimum furnace clearances to combustible materialS
shall be In accordance with Ihe furnace rallng plate.
General clearances are as follows:
a. All IOstallat,ons; Back (0"), SIdes (0"). Top (6"), Duct
(0") and Roof Jack/Pipe (0")
bAlcove installations (see Ftgure 31: minImum 18"
clearance at tront of turnace shall be provided lor
future sel\llcing. Aremovableaccesspanel should be
III
ALL MODELS
CLOSET ALCOVE
Front
'"
""
Back
0" 0"
Sides
0" 0"
Roof Jack/Pipes
0" 0"
Top
'"
'"
Plenum Sides
0" 0"
Top and Sides of Duct
0" 0"
Bottom of DUCI WIthin
0" 0"
installed between top 01 the " .. mace door I'ame and
the cell,ng
c. Closet installatIons mUSI use aIouve'ed door haVIng
aminImum free area of 235 sq, on. when Iocaled S"
from fumace l$a<> Figure 4), For speCIal clearance
between 1," and 6". reqUIrements are alouvered door
wllh aminimum of 250 sq ,n Iree a'ea. With the
openmgs In the closet Ooor <mectly in hne wnh the
louveredopeOlngs ,n thefurnace doo' ,Afuliy louvered
c10sel door may oe use<J (Sa<> Figure 51.
ACAUTION:
HAZARD OF ASPHYXIATION: Negative
pressure Inside the closet, with closet door
closed and the furnace blower operating on
high speed, shall be no more negative than
minus 0,05 Inch water column.
7. RETURN AIR PROVISIONS
U.S.A. home manufactures shall comply W'lh ali of the
follOWIng condilionsto have U.L acceptanceof ceiling or m·
floor return all systems for clOSe! Installed forced airheanng
appliances;
---
/
.. ".
,
•
,,~ ..
•
aRegardlessofthe location. the return airopening mto
Ihe closet shall not be leSS lhan specliied in lhe
appliance's I,stlng
bMeansshall be provldedlOpreVenllnadvenentclosure
by aIlat oblect placed ove' the return a" opening
when It IS located InIhelloorof Ihecloset (versus lhe
ven>eal fronl or Side walil
c, The cross"sechonal area 01 the relurn dUCI system
leading into the closet, when located in the floo, Or
ceiling shall not be less than 250 square ,nches.
dThe total hee area ot open,ngs ,n the Hoor or ceiling
reglslersservingtne relurn airductsystem must be at
least 352 sq.in. AI leasl one reglste, should be
Iocaledwhereit is notlikely 10 be coveredby carpellng.
boxes and olhe, oblects,
Figure 2. Ove",11 Dimensions
NORDYNE -manufaClUrer of lntertherm Bnd Miller products

eMaterials located ,1'1 the ,,,'um duct system have a
llam<! spread class,hcal,on ot 200 or ~SS,
f. Noncombustible pans havrng 1" upturned flanges a,e
located beneath opefllngs ,1'1 afloor duct syslem,
g. Wiring malerials located in the return duct system
shall conform 10 Art,,,le" 300-22 Of the NatIOnal
Electrical Code (ANSI C1INFPA-701.
h. Gas piping IS not run ,n Or Ihroug" the relum dOCI
system,
Test lt1e negative pressu,e Illlhe closet wilh the air-
circulating fan operating at h'gh speed and the closet
close<'l, The negatove pressure IS 10 be no more
negatIve than m,nus 0.05 ioch water column.
For floor return systems. tile manutaclured home
manufacturer shall all,. aprominent ma,l"ng on or
nea, the appliance where It Can be easily read when
the closet door is open. The marketlng sllall 'ead:
HAZARDOFASPHYXIATION: 00 not cover or
restrict return air opening.
A CAUTION:
Three typical drslnbut,on systems are illustrated mF,gure6,
For proper air dlstribuhOn, Ihe supply duel system musl be
deSigned so
lhallhe slatlC pressure measured e~le,"al to
the furnace
does nol exceeolhe Iisteo stallC pressure raling
shown
on lhe furnace rahng plale.
8. AIR DISTRIBUTION SYSTEMS
Locanon, size. and number 01 reg,sters should be selec1ed
on the basisof
beSI aor distnl>u!Jon and floor plan of Ihe home.
. _.
w., o·
,--
Figure 3. Alcove Instalillion
0· ....
CIo"
to F" ,.
o.-
,
figure 4, Closet In.lallation
~
~----~-- "
~
~
~ :~~~:>".
ill
~
~
~
-<
r:'"
-""''''
~~~
"'''''''''
I
~~§
.-
>02",
~~
~iiii~ r
~
~ iiii ~ (~S
~,
•
"'i'<''''
~:g,:§~
\.,
~i'<''''
"'~,...
II!
•
'-
"",a:
~
~L05E
~~
I,
,
"
[
l
flgur. 6. Typical Supply Duct System
============~";O;;;";O;';";;;';~~m;;;.;";";'.;,;';":,rer 01 lnlerlherm and Miller products. _

9. ROOF JACK SELECTION
,,-
This ;0<01
~'oo
above ceifing
Flashing
.!.ack '-,.
,
111
//
C~vity
I
"~-
-•
-,-
•
00
IJ
Furn"".
~-.
-
-'-
''''''
Ceding
Flal Roo
Flue PI~
CombuSl1
Air Pipe
APPLICATION NOTES'
a. FO, SO. SOT and FOT Senes Roof Jacks with a5"
diameterinner vent pipe may be used with all models
ot MG, MM. MS. and MB series gas and oillumaces,
b. F_Flat, Flashing: Adjusts Irom 0112 to at least 1112
root slope
C, S~Slant Flashing tor 2.5112 Slope: adjusts 1112 to 41
12 root slope,
aDeterm",e depth
ot ceiling caVily trom centel of root
openlr>g to centerofceiling opelllng, (See DimenSIon
"A"
in Figure 7.)
b. Determ",eceillngheight arid sublractheight ottumace.
(See D,menslO/ls "B"
in Figure 7.)
c. AdddlmensOons A+ B(and Xfrom Table 9and F'9ure
8if stant deck flashing is used), The lotallength of (A
+B+ X) Will be w~hin the minimum and maximum
range of one of the Root Jacks
l>Sted In Table 8.
Nole: Install only Root Jack Assemblies listed in Table 6 on
this Ileating appliance,
ROOF
JACK EXTENSION
Figure 7. Rool Jack A
•• embfleo
Figure 8
~
"X" (SEE TABLE ~I
~
ROOf JACK
SLANT DECK
FLASHING
ROOF OPENING
CEILING OPENING
CEILING
PITCHED
,~
ROOF JACK WITH
2',112 SLANT
FLASHING
Under some circumstances it may be deSirable to raise the
Roof Jack by
USing afurnace Root lack exlenslon (external
extensIOn pin 901937,IIIIernai extension pin 901935).
An
extenSIOn or high Wind senes roof jack may help to solve a
pilol outage caused by unusual wirld elleels because
of
geographICal features such as hiils. trees. tall buildings, etc
The extenSion
IS availableas an opllonal accessoryand may
be purchased through your NQROYNE distributor.
,I
,
MODEL
,APPROX, ADJ.
NUMBER
LENGTHS'
BELOW FLASHING
F01323 -5 13- -23-
F02343 -5 23" -43"
501835 -5 18"-35"
502447 -5
24--47"
503253 -5 32" ·53"
504895 -5 48" -95"
I
50T2442 -5
24"-42-
50T2745 -5 27" -45"
50145B1 -5 45" -81" IFOT2846
-5 28" -46-
2h 112
SLANT DECK
SOT
~I
,
..... ."".....,
'"<L"''''_G T"~T
""
0""'"" OT_
---
27 45 -5
L
6.7.;,",-
,...,TN
-- "'"GlN
5/12 ROOf SLOPE
Table e, Rool J .. k A .... mbl>e.
Fig~re 9.
NORDYNE - manulacturer ollntertherm and Miller products

--------.
lop 0I5I4'PIY Ulluel (SH Fogure 10)
b. Seled appropniIlemodltlt<omTable 10wtw;:hma\C11e'5
X~ 01 the lloof caVl1y, To maJOffille a"
deIlvery.remtlIIereducer"C" (Me F"ilure 12JIOoblam
lhe largest open area tNI WIll lIt lhe duetnloor
conSlruc1lOR.
11.INSTAL.L.ATION
Required floor. ceol,ng. and loot CulOu! openongs must be
carefully located to aVOid m'sallgnmenl ot rhe lurnace and
Rool Jack (sef! Figures 13 & '4), Installahon procedules a'e
suggested
lor typlCallumace Inslallat,ons and r.ee<:l not be
Tolowed in ,he exact IIs'ed seO ....nce
Flgu..-,O.
R.00f'I CAVITY
CI __
IO
•X ...
F9n
'Z_T_'OI
1-1 2~""~oC=r
IF ~ITCH IS FLASHING
NO .X" FACTOI'lIS'
.. ,
UN 0ut:1
~,
2· In I:!'" 901942 21/8" (54MMj
rFloo< cav,M is. ConnI<:lOr MOGel NumD~r
(51mm/304mm)
718" 122/Ml1
458~01 901987
2112· on 12· 90194, 2 112" (~MM) l'" 151/Ml) 453902 901988
{64mm/304mml 4 114· (108mm\ 458903 901989
3· on '2"
90,940 2 718" (73MM)
6 114" (\5!1r1m\ 458904 901990
{76mml304mml
8fl4" (211;lmm1 458905 901\191
3'12" on '2"
901939
3 114" (83MM)
'A ,,.. (26Onwn)
.~~ 9011192
(89""nI304mml
121(4· 1311"",,) 458907 901993
4" on 12" 90\938 35/8" (92/o1MJ
(lQ2rnm/J.04mml
T_ 10. Duel Cor._lI:>n
S" on 12'"
U ... 90194\
2 11'2" (64MMJ
{127"""~"""1
WIth ...... MYIn'iJ
10. DUCT CONNECTOR SELECTION
""" .....
. ""...Ell 'a.
Del~dep(h 01Iloo< cawytromsurlace 0I11oor1O
r
r
t
[
l
r
AIMPORTANT:
Reier to the inatallalion Inalructlona provided
with optional air conditioning packages when
Installing furnaces with optional cooling coil
cablnetorwith optional C'" """es evaporators.
i
r
_.-
.~.
Rgu..-l1.
"'''4'
•••
......... 1(0(: "'l_
-_.
,,.,, . ,,. ...
CUT OUT flOOR OPENING &FUEL LINE HOlE
"'. Det ....... ~e< ~ etoMt Of aJeQvoe (Fogure 1 J)
bLocatecenle< ~1helloorope<Wlg . ..-sured 10" lrom
there.arwal!.andll'lllll<e>*llAmeasunngawoOXli,ralety
14-1/2" by ""1/2" lor r\""IOdII'I d\lCI co .. ...ao< used
(<eter 10 FIgUf8S 11 & 12) .
c. Locateceote< 01 lue! ... hole. measured 23-1/4" lrom
1I1e rear willand &-518"10 Ille Ie/I ~ centerIII tIE IlDor
CUlout (SH Fogure 13) or 5·114" 10 lhe leh 01 <:ente' III
me IIoor Culout. or IOf efllry mrougtl ngM·SIde 01
furnace measurf(l 9" 10 rl'\f .igt11 ot ~Ier 01 the noor
culOul.
d
CUI out Hoor QPe"'ng and OI"H!!~ ~ne hole.
Figure 12.
-NORDVNE" menllt.clur •• ollntertherm and Miller prodllcl •. _

.. _-' ... -
... ....... _-'"
~.-
b. GeI1lel' ouct connec1Of .nd pu$h I)adl .QalO'lSl .ea.
edge 01 I'Ioor opel '" og
C. Mark CUlOIA 1oc:a1Kln (tab am) and rerTIOW! duel
,-
d_ Cut out duel opetWlg 1!." IiIrger tNln .... marl<ed .
flllu.a 16. 0 ... 1Connector
,
II
,
.. ,.'
-_ ........
--
~ .
~ .
-•
•
-' ~
- ".
.... " ...
-
,
'0
"-
. ~-
• _0
-0
•
" ...
..............
.-
.. '" .-.u. 01' <LOS,,, "" ... """"
.I
...""" .OHMIl
,
."" DUC' """"-
,
""-, ."".-
I,
.... '-' ..
••
/N:'
,--
•
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-
J" ... ~, .. ' •.
~
,-
,
"""'"CI.~_
--
~-
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-
-
•,,•
~
- -------.-
'. -----.-::
,
-..-..
.......... --
•
•
Flgou" 13. Closet 0' Ako ...
...
"" .. 1 •. Cul-Out I oc:_
INSTALL FURNACE MOUNTING ptA TE
il- Place mounlIn§l pa. .. (S\lJlDlIed W<Itwl ouct t<:A .. """""
ill rear ollhe IIoor opel-Ill (See Fogu.e 16).
ClIT 0lIT CEILING AND ROOF OPENINGS
._ Lox.al. <:enl.' 04 Roo! Jack openong. measu .. d
13 5/8"from
lhe IU' wd 04 dosel CO" ~ 8loog l1Ie
cen1et """ of tumillCfl and 1100< openong. (See
Ff{j ..... ,.)
b CUI QeWlg and root holes as tallows,
CeUlg Hole. 8·3/." (222mml d'amete'
Roo! Hole. g.3Jll" (238mm) d<ameter
CUT DUCT OPENING
a
P~c. dUCl connector through the floor opening Wllh
bOnom labs 'eSllng on top of the supply.It duct.
INSTAll. DUCT CONNECTOFl
.. Place duel connector lhrougll lhe IIoor opel_ og Wllh
bolIom labs1!1Iendo:'lg ll1fOo.1O/1lhe ducl ~I ,"ig. (See
Figure 15)
bSecure d...et conneclOf and mountmg plate WIlh two
(21 !lathead .crews o. nails aI (IImpled mount"'9
locations
CBend bonom labs
uode. and up tlglltly aQall1st tile
SllPPly." dUCI (See Figure 17)
NOTE,
Tile d...et connecto.,s deSigned for use on ducts 12·
in wJd1h. When USing the connector on 12" w,(le ducts, there
may be insuMicienl clearance to bend tne tabs
on two s,aes
------- NORDYNE - manufaclur.r ollnt.rlhe'm and Miller p.oducts

•
•
INSTALL ROOF JACK
cStide
bacl< 01'10 m:lOnli"ll plale untit snug. (Bot1om
"'Ilr stolS on lumace should e"<Jall€' with mount''''J
plate 18bs.)
d. Secure front with ooe (1) screw al
each comer (Set!
Figu,es
20 or 2t),
Apply Caulkmg to Roof FlashIng. Apply caUlkIng compDl'n(!
on Underside of rootflashing, lD formacon\lnuous st npatleasl
3/B" wKle (see Figure 22) around the unde""de of the
penmeleroftheHasnln9, Connect Rool
Jack Assembly to Ihe
fumace.lnsell telescop<ng ROOf Jack Assemblylhrough tile
opelll"ll CUI on the rool. Connect flue ll'Pl! 10 llue coHar of
fumace, Connect combustIOn air P<Pl! to lumac .. collar with
sheet melal
SCrew (See Flgufe 23). II is rocommende<! that
the connection of the combuSlIon alf p,pe to the Iurnace be
maoe betore the flashIng is secUfeo to tt>e roof 10 maintain
alignment
01 roof jack and turnace COflIlllCIIOIlS.
NOTE: Addiloonallasteners
may be used al rear, SlOeS or
T1lfOUgh (100< frame. as (les"ect,10 secure lurnace tocloset or
aICO"" framIng.
.. - ............
-",,-';."-; ...
\.\_'!"-
' .. ~-."",
---
'._'_.-
-
--v.R2,.t- _ .. ~
-'. ".' '0" _.
•
," - ......
---'-"
---_.-
u-~
~
r
f
Figure 1lI.
Olille dllC1 conne<:lO'. In such CaseS too tabs may be attached
to the sides 01 the duct by USing sheel melal screws or other
sUitable
lasteners. (See F 'gure 18)
NOTE: Forreplacement lumaces, bes"re the Innerllue pipe
connects overlhe fumacevent collar. 00 NOT uae .. amaller
diameler inner Ilue pipe Which could alid .. inside lhe
lurnace vent collar and reslricllhe Ilow 01 lumac .. lIue
producls.
FiGure 21. "A" Callin..t Fum"" .. on "196' Coil Ceblnel
--
.... ' ...... y'"""
'""OM", "."
•
--
... ' ... w •• '"""
""toM' ..... "
IIJI' •
"' .... .,,,-
-,. ~o~"~"'_ .,~~~
• «_ '..-.co
~"',"""'ws ." .... '
"""/: ""' ..
."-.- ...
C>
. '""" .-"0,,,,_,,,,
... _ .. c..ooo_. ~.
" ~"""",,,WS
.,,""", =-0. _ .. }
."
Figure 20. -A" & -B" Ceblnel Furn..: ..
It tapeIS Use<110 provide a bene' seal. ,t should be approved
by applicable natKlOllI Of lOCal codes
Til,s procedure may also be used 10 ,nstall afurnace dUel
ccmnector 10 narrow melal dUClwor1< whe'e Insulh"",n1
c~a,ance prevents bending of lhe Que! ccone<:IO' tabs at the
sKleis) 01 the duct (See F'!lure 19)
1SCore and Cui the top 01 the metal duct as IndICated ,n
Slep' or Step 2. With Slep , chOICe. also cut 001 the
melal from the shaded a,ea "A"
2Fold the duct Hap -go up. (See Step 3l
3. At the fronHp·Di!ck of dUCI run (Area "A"), oer>d the dUCI
labs and secUfe u .... m d<re<:lly to the duel
4 At Area"S", bend the dUCl1abs up an<! back o"e" around
'he duct connectO'.lSet! Step 3),
5. Foict/lorm the duel flap a'1a"ut the sode ot the duet
COMedO,
an<! attach as s!>Own, (Set! Step 4). UseIh,,,,,
(3) staples(mlnomum) on eachductflap OR.
~ a 2X block/
""st is 1101 p<0\fItIe<l. use two (2) Sr.eel metal screws
(minImum) on each duct llap.
6.
Tape the duel flap edges With an approved tape tor a
leak·f,ee
jomt
ALTERNATE ATTACHMENT METHODS
INSTALL FURNACE
a. Remove furnace
oute, doorlsj an<! b<:1lI0m tvet tIne
knockout
b, Place fumace onlO duct connectO' and center w~h
floo, opening
NORDYNE· manufactu,er of tnlertf\erm and Millar producls. _

e- ...... _J
---
--
---
--- /-
--- .¢===;i
""'-,
-
~-
_.-
--
--
--
-
-
--
-'
-"
L~_r"'-=,
-
,-- ._,
-
--
FigU<1l 2 •. Pitched Roof
Figure 23.
If flashing maumed on 12 degree angle is used it may be
necessary 10 adjust the angle to match the roof pitch; (' /12 _
4/12 ma~,mum).
Mach Roof Flashing, II necessary. shift roof flashIng sligMlly
In the roof opening so thaI assembly isIngood alignmentwnh
lurnace. Press down firmly over caulk,ng o~ roof Uashjng 10
make the seal wilh roof wate, light Secure flashing Wlt~
appropnalefaSienars. As an ad~ed proteCllon against leaKS.
coat the flashIng plale and fasleners wllh approved roof;ng
compOurld
MANUFACTURED HOME SITE
aTranSit-mode wealher cap to be removed and Uppel
Rool Jack crown Instalied (See F,gure 25).
b, Place upper Rool Jack (crown) On to the llue p<pe
assemtlly (See Figure 25). Be sure InSloe tlue p<pe
attachesoverinner Jlue Pipe. Besure outer Roo! Jack
pIpe
f~s ove' outer Pipe. Secure in ~ace uSIng three
(31. _10. 1/2" sheet melal screws suppl~,
C. Venting system warnIng tags 10 be ,emoved and
discarded.
MANUFACTURED HOME FACTORY
a. FurnacetobeInstalledpertumaceInslallal00n manual,
b. ROO! Jack to be selected from Table B 01 these
instructIOnS.
C. RoofJack (iess upper Root Jackcrown). WIth weather
cap
10 be Inslalled as described under tnstan Rool
Jack.
d. Upper Rool Jack crown to be stored In aprominent
location onside manufactured home until on-site
Installat<on,
e. The tour warning lags supplied mUSl be Inslalled as
Jollows'
'To weather'cap
·To !uell,neconnectton po,nl (Gas) Or lurnace burnet
(Ojll
·To lurnace lIame observatIon door (Gas or Oil)
·To turnace wall thermostat
12.INSTALLATION OF TRANSIT-MODE
VENTING SYSTEM
j
--
--
,
,
,
,
,
+--~-
AWARNING:
AWARNING:
Failure to properly secure the flue pipe to the
furnace may result in lire, explosion or
asphyxiation when operating the furnace.
Anyattempt to operatefurnace beforereplacing
transit·mode weather cap with upper roo' Jack
section
may result in hazard 0' fire, explosion or
asphy~lallon.
NDROYNE· manufacturer of Inlertherm and Miller products

_.-
---
-
, ,
, ,
, ,
f';
, ,
,
-, ,
, ,
,,
, ,
,
,
~
._--------
L-
[
Figure 26. Conlrot P .... I(All Models)
FigureM.
13. ELECTRICAL WIRING
Refe, to these Installation instnxtions for indiv;dual WIn ....
diagrams.
ELECTRICAL BRANCH SUPPLY CIRCUITS,
Route all electrical wiring \0
Ihe leh side of Ihe furnace. For
,nstallation of "A· Cabmet fumaces. allow sLJflicient slack ,n
the winng d an optional coolong cOil cabInet is added a1 a later
tIme. Use of copperconducrors '5 recommended.
Power supply circuit 10 the furnace must be ,nstalled and
gmurJded in accordance with the National Electncal code
IANSI-C1fNFPA-70). Or Canadian EleClnc Code Part' (GSA
22-') artd all local codes haVIng JunsdlCf,on,
CONNECT POWER SUPPLY WIRES
a, Remove the turnace control panel cover.
bInser1115 volt wlfesthroLJgh the strain rehe! onthe !ell
side
01 the furnace junctIOn 00_ (see Figure 26)
c. Conr>ect the "hot" Wire to the BLACK pigtail Hlad, and
the "neutrar WIre to the WHITE pigtail Hlad. Secureatl
connectIOns with swlable
wore nuts and wrap w~h
etectro::al tape
d. Connect
Ihe "ground" wire to Ihe grounding screw
e. Remslatl the control panet
cover and secure with the
onglnal mounting screws.
CONNECT THERMOSTAT WIRES
a, Insert 24 volt wores through the plasto:: grommel JUSl
above the control panel.
bConnect the thermostat
WIres 10 the lurnace low
voltage pigtaIls (see Figures 26 &27)
c. Connect Iow.vollage circuit to the wall thermostat.
NOTE: The thermostat should
be ,nslalled 4 to 5feet above
the floor on an inside wall which is relallvely free from
dire<:t
sourcesofheator cold drafts. The nomonal antic,patorselt,ng
's 0.4.
(Reier to the thermostat ~ter3.IUre lor additIOnal
inlormatlon.)
lill
,
-
Goo''''_
Figure 27. Thermostal Con"""li,m,
F,ve·condoc!or Ihermostat wore is recommended for 24 voll
low·voltage Circuit
(2-w"e '5 lequ"ed lor lurnaceonly: 5-wire
lor heating and ophonal cooling systems!_
f'STAT
R.com ......... od rSTAT Wlf.
w". a."lI' Lon
.h Un;""T'SfAT
• _w".
~·w" •
rHo."
,
!Hoa,;n~icO<>l,"OI
,. ""
"""
'"
' ..
'"
'"
no
,,"
onee the furnace IS Inslalled check Ihe1hefmostatantlClpalOr
against
lhe nommal sett"lll 01 0.4;
1. Connect the milliamp meIer In senes w,ltl one ollhe gas
valve's low vollage terminals
2_ Energize the gas valve,
3, Read
lhe value 01 the milliamps,
4, Adjust the heat antlc'pator of the tl1ermostallO the value
read
On Ihe mlll,amp meler.
NOROYNE -
manulae:turer ollnterlhenn end Miller products. -------

If the heat anticipator is seltoo high thelumace maydelay In
comrng on
II the heat anticipator is set too klw the furnace may cycle
f,equently aCId not provide comlort to the homeowner.
~--
CHECK BLOWER CONNECTION
a. For interm,ttent (thermostatICally controlled) blower
operation, place Ihe On-OIl-Fan SWitch in the "ON"
position (see Figure 26),
b, For continuous (indepeCldentj b1oweroperatlOn, place
the On-ott-Fan switch in tha "FAN" position,
c To tum "off" electrICal power to Ihe lurnace, place Ihe
On-Oft-Fan sw,tch in the ·Off" position,
--
-
---
----
--
--
14, FUEL PIPING
S,z,ng andinstallationoffuel linesmust be in accordancewith
lederal. Slate and local regulations. All p,ping shall be black
,ran p,pe, or eqUIValently sized sleel1ublng. Internallytinned
copper tubing may be used for gas supply systems.
Fuelline installat,ons otherIhan typical installalions shown in
Figures 26 and 29 mustcomply w,th the luel p'plngprov,s,ons
staled in the Federal Mobile Home Standard (H,U.D TITLE
24. PART 280) and the Nat,onal Fuel Gas Gode (ANSI-
Z223.1INFPA·54J.
aOptionalfuel inlellines are availablefa, all gas fumace
models to perm't the addillon 01 a 112- F.P.T shut-oft
valve above the floor
NOTE Shul-oft valve must be deSigned and listed for use
with l'qUld pelroleum (LP. gas)
Thegassupply to yourhomewill eaher be Nalural Gasor LP
(bollie gas), Your furnace 's factory eqUipped to operate on
Natural Gas, If your gas supply is L.P. (bottle gasl, you musl
conlact aqualitied servICeman or gas supplier 10 convert the
furnace, The necessary instructIOns for the gas COnverSIOn
are lound on Ihe hghtmg instruction label anached 10 the
furnace. and Page 17.
ACAUTION:
The furnace mUllt be converted by II qualllied
teChnician. Improper
conversion can cause
unsafe
operation, explosiOn, lire and/or
asphYXiation,
Fornaturalgas operalion, the lurnaceisdes,gnedfor 7"W.C.
inlet pressure Pressure is re<luce<l to 3·1/2- w,e. by the
pressure regulator tn the gas .alve.
II
·O'T ....
1'_ ,..".,," .....
-"" j
roo '" T......
\
'"'
• ...., ""'"" _ ., ,,*,, 10' ..
,.." .... "lI", '''"' "Iongo. ~ •.
................. "'_ ........ ....,
_,,,,,,1--_,..."
""" ..., , ..... '" "",......
Figure 29. Typical Oil Piping tor Abova Ground (Single-U"'l Suppty
------- NORDYNE" manutaclurer 01 Interlherm and Miller products

I
[
I
I
I
I
ForL.P.gas. pressure to the gasvalve must be morethan 11 •
W.C. but not more than 13- w.e. Pressure ,s redllCed 10 1 l'
w,e. by the pressure regUlator in the gas valve.
a
Oillurnace models may beconne<:led to aboveground
or belowgroundtuel supplysystems. LocatIon lorthe
fuel storage tank ;s le11 to the discretion of the owne'·
user. (Refe,to chart anachedto burrIerfuel pump lor
maxImum allowable le"91h 01 fuel hnes,)
Oil Gun Models
Your lumace is factory eqUIpped 10 operate on NO.2 fuel oil.
In very cold weather. No. 1fuel all should
be used
Do no use motor 0" or any fuel other than No.1 or No 2fuel
oil in tnls furnace.
NOTE, Oil storage
tank must be tree of waler, Slud9l' and
seale to prevent excesSIve wear and pOSSible damage to
lurnace fuel pump and burner nozzle. Aluel filter allhe
siorage tank IS required,
CONNECTING FURNACE TO FUEL LINE
aConnect inlet t",,1 line to lurnaee control valve (GAS)
or
1"", pump (OIL), Approved Pipe JOint compound
(type ,nsoluble
to L.P. gas) may be applied on male
threads only.
D. Open 1",,1 line valves and soap test for leak.
DO NOT
USE OPEN FLAME TEST FOR LEAKS.
PRIMING FUEL PUMP (OIL FURNACE MODELS)
aConnect a3/16" 15mm) LD. hose
to air-bleed valve
(see Figure 29) and place other end of hose ,nto a
su,table container.
II Set furnace
lhermostal above room temperature and
push reset bunon on burne, primary control
CTurn on electrical power
to lurnaee, and set On-ON·
Fan
sWl1ch 10 "ON" poSItiOn,
d, Allow burner to run until discharged all ,s Iree of air
bubbles: Ihen shul off alr·bleed valve.
15. LIGHTING AND FURNACE SHUT DOWN
GENERAL·ALL MODELS
Read the salety mformatlon on the lront page of these
InSlailallon Instructions belore lighting furnace.
DO NOT
ATTEMPT TO LIGHT FURNACE IF YOU SMELL GAS.
SAFETY INFORMATION
AWARNING:
If you do not follow the$e ifl$tructions exactly, a
fire Ot explO$lon may re$un causing personsl
Injury, fOU of life, or property damage.
FOR YOUR SAFETY READ BEFORE LIGHTING.
a. ThfI first fighting a! the furnace after eny home
selup mus! be performed by a quafified service
technician.
b. If Ihls apphance has apllOl that must be lIt by hand,
follow these instrucltons exactly.
c. BEFORE L1GHTfNG smell all around the lurnace for
gas,
Be Sure to smell next to the lloor because some
gas
IS heaVIer tnan ai, and WIll settfe Of] the fOOr,
d, WHAT·TO DO IF YOU SMELLGAS: Do nottrytol'ght
any appliance, Do not lauch any electrIC sw,tcn and
do not use any phone In your bu,iarng. Immedlalely
callyour gassuppl",rtromanelghb<lf'sphone. Follow
the gas supplier's in51fuctlOns. If you cannot reach
your gas supplier. call the lire departmenl
e. Use only
you' hand 10 push In the gas controlleve,-
Never use tools. II the iever will not push
In by hand.
don'tlry
to repair It. CallaQualIfied servicetechniCian.
Force
or altempted reparr may result ,n a l"e or
eXploSiOn,
'- Do not use thIS furnace It any part has been under
water. immedtatelycall aQualilie<j servICe lechnician
to ,nspect the furnace and to repface any part
01 the
gas valve
or control syslem which has been under
waler
AWARNING:
Close hinged fire door, if fire door is open or
spring is broken il may allow products of
combustion into the living spece by the furnace
blower resulting in possible asphyxiation.
LIGHTING INSTRUCTIONS FOR STANDfNG PILOT
MODELS.
a. Stop' Read the safety Informatton
b.
selthe lhe'mostalto the lowest setl,ng,
C, Turn 011 all eieclllC power to the appliance.
d. Push In tile gas control lever sllgnlly and move lelt to
"OFF: DO NOT FORCE
e.
W8I11en 1101 m,nutes 10 clearoul any gas. If youthen
smell gas, STOP! Follow step
"dO In the SAFETY
INFORMATION.
If youdon'l smell gas, gOlothe next
slep.
NORDYNE· manufacturer of Intertherm and Miller products. _

Gu C<lnlrol La ....'
Figu",
30. Standing Pilot Val ....
Figu,e 31. Llghllng Furnace
t. Find pilot -lollow melal lube (pIlot tUbe) Irom gas
control valve. Open hinged
lire obsel\tallOO door.
The pilot IS lound at the end
01 lhe pIlot tube justlelt
01 the PIlot shl&ld.
9Shghtly depress the gas control lever and move it
nght to the "ON" posit!()l1 and release: then move II to
the
"PILOr position.
h, Movethecontrolleverto"SET"andhold. Immediately
light Ihe pilotwith amatch.
II thislurnace IS eqwpped
Wllh a P"no Ignitor,activate sparkIeverlburtonseveral
limes
unt,'llame IS visible Ihrough obsel\tation door
Cont>noo to hold the control lever for
aDDUI OrJe (1 I
minute aller the pilotis lit. Releasethe leve' and It will
spring back to the "PILOT" poSItion. Pilot
shoLJId
remain hI. II It goes out, repeat sleps"<1" through "h"
above, litheIeverdoes
rIOt springbackwhen released,
stop arid immediately call your sel\tlCe technoc,an or
gas supplier.
11 the pilot woll rIOt stay III aller several
tIleS, move the gas control lever to "OFF" and call
your servICe lechniclan cr gas supplier.
Mcve the
gas centrol leve, Iefl to 'ON"
I. Tum cn all elect'ic power tc the fumace. Set the
thermestat to "Heal" and/cr the deSired temperature
selling, Set the On·OIl·Fan
SWitch tc"ON"',
k. Replace the lurnace door.
AWARNING:
ClolJlt hinged fire door, if fire door Is open or
spring I. broken it may allow products of
combustion intothe Jiving space bythe fumace
blowerresulting
in possible asphyxiation.
In ttle evenl oj any llashback or explosion. ,mmediately shLJI
oft ttle fumace and call your service technICIan.
TO TURN OFF GAS TO APPLIANCE:
a. Selthe thermostal to the lowest setting.
b. Tum Oil all electnc power to the applrance at bfea~er
or luse box, befcre seMc,ng,
c. Remeve Ihe furnace door
d. Push In the gas wntroJleve, shghtly and move to the
lelt to "OFF." DO NOT FORCE
e. Replace Jhe fumace door.
SEQUENCE OF OPERATION FOR STANDING PILOT
a, On acali lor heat, the thermostat cDrltacls close,
supplying
24 VAC 10 the relay module,
b. When ttle gas valve IS energized it steps open at a
reduced llow and opens lully after appro.,mately
14
seconds,
c, When the call for heat is satIsfied Ihe thennostat
coniacts open, Ihe gas valve closes
SEQUENCE OF OPERATION FOR STANDING
PILOT WI
INDUCED DRAFT
BLOWERS MODELS (09OPQ)
a. On acall for heal. the Ihermostat conlacts close.
supplying
24 VAC to the relay.
bThe relay contacts close and energize the ,nduced
dralt motor
c When the metor reaches appro
.. mately 60% 01 lull
Speed the proving SWItch closes and energ'zes ttle
gas valve,
d, When Ihe gas valve,s energIzed It SlepS open at a
reduced
How and opens lully afler approximately 14
secOnds.
e. When the call fcr heat IS satosfled the Itlermostal
contactsopen, Itle gas valve closes. and the ,nduced
dralt blower Slaps.
GENERAL·DIRECT IGNtTtON MOOELS
Read salety inlormatlOn on Iront page of Ihese inslallat!()l1
instrt.ICt,ons belore operatJnglurnace. DO NOT ATTEMPT
TO OPERATE FURNACE IF YOU SMELL GAS.
NORDYNE· manulac1u,e, 01 Interthe,m 3nd Mille, products

OPEFIATING INSTRUCTIONS FOR
MM- MODELS WITH DIRECT IGNITION:
a. STOP! Read the SAFETY iNFORMATION.
b. Set the thermostat to the lowest SeWnll
c. Tum off all ele<:tnc power to the apphance.
d, This appliance is equIpped witl1 an Ignition deVICe
wl1lCh automatically ligl1ts the burner. Do not try to
I<ght the burner by l1arld.
ePush
in the ga5 control lever slightly arid puslliefl to
·OFF." NOTE:
Tile tever cannot be placed in the
"OFF"position unless
tt is pushed in slightly. 00 NOT
FORCE (Figure 32).
f, Wait ten (' OJ minutes 10 clear outanygas. If you smell
gas, STOP! and follow step "d"
In tile SAFETY
INFORMATION
se<:tIOn, If you don't smen gas, go to
the next step.
g. Set the On-Off-Fan switcl1 to the '"ON" posItIOn.
11. Pusll the gas conlrollever to the ·ON"" position.
I, Tum on all electrIC power to the appliance
j, Replace the furnace door.
k. Set the thermostal 10 "HEAr and the desired
femperature settong. The
lumace st10uld lIght after
approx,mately
45 seconds. If fhe appl,ance will not
operate. follow the Instruetiofi5 -To Tum Off Gas
To
Appliance" arid call your service techmcian Or gas
supplier,
In the event of any llasl1back Or explos,oo. Immediately shut
off the furnace and call your serv,ce te<:hniclan.
TO TURN OFF GAS APPLIANCE:
a. Set the thermostat to the lowest sewng
b. Turn oN all electnc power 10 the appl,ance befOfe
servICing unit
C, Set the ON·OFF·Fan SWIlch 10 "OFF:
d. Push In the gas control lever slightly and move IeIlIO
"OFF: 00 NOT FORCE
eReplace the furnace door
Gu Conlrt:>1 Lever
Figure
32. Direct Ignltlt:>n Gn V.I¥~
SEQUENCE OF OPERATION FOR MM MODELS WITH
DIRECT IGNITION
Direct igniticm model furnaces
do not have apilot. IgnrtlOO is
accomplished automatically
by asiliron caroide hOi surface
ignilO'- Acootrol module lakes care
01 all timing functooos.
Alter lighllng, the cootrol module uses the
>gnitor as aflame
sensor, shu!l<ng offgasShould
tl"le llame go out. Tllereareno
external relays
or timIng deVICeS.
Do not try to light this lumace manually. The control
module i. nollield serviceable.
a, On acall lor heal. Ihe thermostal contacts close.
supplying
24 VAC between lermJnals ·C" and"W'" 01
the conlrol module.
bThe
comt.>uSllOn bloW<! rmoto, PfOVl ngsWllchenergIZ","
when the motor reaches approx,mately
8M. 01 lull
,-
cAftera3Osecondpurgeperiod.theignitor is energ,zed
for a15 secood warm-up penod. alter wInch the gas
valve opens
d, Thet"al penodfor 'gmt,on isapprox,rnately6seconds.
afterwhich the gas valve eitherrema,ns open
if lIame
'S sensed. or closes if flame is not sensed.
e. IIl1ame'snot sensed. the entiresequence js repeated
two moret,mes before"\ockou1" occurs, To reset. wa,f
30 seconds aod then interrupf the 24 VAC power by
turn'ngthe roomthermoslatbelow room temperafure.
then ,eturning it
to the original set PO'nf,
I. Whencall for heat IS satJSflM thelhermoslatconiaCIS
open. the gas valve closes.
OPERATING INSTRUCTIONS FOR
OIL AND GAS GUN FURNACE:
011 Gun Model
If your furnace model numoer begins with MS·'. lhe furnace
is eqwpped with an 'gmt,on dev,ce whICh automatICally lights
the burner.
Do nOllry 10 IIghllh'5 furnace m<lnually,
a, Open all valves in the oill,ne,
b
Be sure the lire doo, 's closed
C5l!t fhe thermoSlat to the 10weSliemperature setting.
dPush the "RED" reset button on the burner pnmary
controi
eSet the On·OH·Fan swach to
"ON"".
f, Sel fhe fnermoslaf 10 fhe deSorM se1ting
g If the burner does not I'ghl, repeat slep "d·.
h, If the burner still does not hght. call your qualified
serv,ce techntcian
SEQUENCE OF OPERATION FOR
OIL GUN MODELS
a. On acall for heat, ,f the cad cell sees darkness. the
thermoslatcontaclS close ene,g,z'ngthe burner, The
ele<:lrode starts sparking
------------- NORDYNE - manulllcturer ollnlertherm 3nd MiUer products. _

b. If tMcad seesdarkness, powerwill be allowed 10 stan
the burner.
Itthecad cell SeeS light. the oil bumerwitl
oot operate.
ThIS is abUllt-m tail sate which will oot
allow the burner to fire if there
IS already tire in the
combustion chamber.
C If the resistance feadlnlltrom the cad ceiliwhich tne
pomal)' control is senSIng) does oot drop to
300 to
1000 ohms. the oil burner will anempt Ignition tor 45
seconds. alter which it will lock out On safety.
d, To reset the oil burner, the fed bullon on the primal)'
control must be reset
e. Whencall torheatis satisfied, the thermostatcontacts
open. and the
bumer will stop.
AWARNING:
IIfurnace still does not light, turn the lumace off
(describedbelow) and call yourtechnician.ln the
event of any Ilashbackor explosion, immediately
shut off lumace and call your servicetechnician.
Gas Gun Models
If yourfurnace model number begins with MS", the furnace
does not have apilot. Ignilion
IS accomplished automatically
by a solICOn carb'de hot surlace ,gMor, Acontrol module
takes care
of allllghMg and tlmmg functions There are no
eXlernal relays or timing
deVICes.
Do nOllry 10 IIghl Ih,s lurnace manually.
The control module is nol field servIceable,
BeloreooerallOn, smellallaround thelumaceforgas Be
sure to smell next 10 the tloor because some gas is
heaVier than air and will senle on the floor.
If you smell
gas, STOP' and follow the safery InstruCllons below
II
you don't smell gas. go to the next step,
AWARNING:
FORVOUR SAFETY; WHATTO DO IF
YOU SMELL GAS:
•Do not try to light any appliance.
•Do
nol touch any electrical switch; do not use
any phone in your building.
• Immediately cali your gaa aupplier Irom a
neighbor'a phone. Follow the gaa aupplier's
inatructions.
•If you cannot reach your gas supplier, call the
fire department. Should overheating occur or
the gas supply lail to shut off, disconnect the
power atthe main circuit breaker and then see
"To Turn Off Gas To Appllance,H
2. Set fhe thermostat to the lowest se"ing,
3, Tum all all electrO:: powe' to the appliance.
4. This appliance IS eqUIpped WIth an ignlhon dev~ wheh
automatically lights the borner. Do oot lry to light the
burner by
hand.
5Push in the gas conlrol lever slIghtly and push lelt to
"OFF." NOTE: The lever cannot be placed
on the "OFF'"
positIon unless the knob
IS pushed on slightly, DO NOT
FORCE (Figure 33).
6, Wait ten mInutes toclear out any g~s, II you then smell
gas, STOP! and tallow the salety InformatIon
00 the
precedIng page.
II you Oon·t smell gas, go to the next
step.
7. Set the On·OIt-Fan sw,tCh to the ·ON" posouon
8. Push the gas conttolleyer to the "ON- POSItIon,
9. Turn on the electnc poWef to the applIance
10, Sel the thermostat to "Heat- and/of lhe deSired
temperature setllng
The furnace shoutd Ioght In
approximately45seconds. Iltneappliancewiil not operate,
lollow the instruct,ons
'"To Tum Off Gas To Appl,ance"
and call your
serv><:e technICran Or gas supplier.
In Ihe event 01 any Ilashback or exploslOO. immedlalely
shUI
olf Ihe furnace and call your servICe lechnician.
TO TURN OFF GAS APPLIANCE'
a. Set the the'mostat 10 tile lowest setling,
b. Turn 011 all electriC power 10 tile appliance before
serviCing unit
C, Set the On·Oft·Fan SWitch to "OFF."
d. Push In the gas control kwer shghtly and m(lYe left to
·OFF" 00 NOT FORCE
eFor oil,
Shut olf all yatves
f. Repl~ce lhe lurnace door
SEQUENCE OF OPERATION FOR
GAS GUN MODELS
a. On acatt lor neat. rhe furnace conuol beg,ns an
Ignrtlon sequence which lasts approxlmalely 45
seconds,
b, Alter thiS sequence, the control module lests toseeIf
Ilame
>s sensed. tIlthas, the turnacecontinues to heat
unli1 the thermosWt IS satlsfted,
c. If Ine burner has not fit, the IgnillOn sequence IS
repeated a maxomum oftwomoretimes. tlilame IS not
sensed aHer
th'ee attempts, the control enters
·Lockout· and no further atlempts to tIght the burnef
wott occur tI "Lockout" occurs, contaCl aqualilled
service techniCian
lor assistance,
d
Whencaillor heat IS satISfied, the thermostatcontacts
open and rhe gas valve closes
NORDVNE -
manufacturer of tntertherm and Miller products

-~
_'M_
-- .... -
. --
~AJ • .-'-
-----@---, ~+
.... _0.
II
L--~--:-~:--:-----c-:---------.JI I
FlguN :13. Ga Gun Gal V..... I
Factory Combustion Air Settings
MBHB· 066 = 1112t02
MBHB· 086 =3
MSHA· 066 = 4
MSHA-086=5
L
I
i
f
THE FURNACE COHTIlOLS AND FUNCTlONS
1 ()n..()tl·Fan Swlldl- ThGlWItCh turns eleClnCalpcJWerlO
.... f...--:eonan:l otl.orlumt lI'IebioweronconllrluDulfy
d set ..,.,.,. "Fan- P<J I I m. The S\WCIl musl De HI WI"'"
"'On -po5IlIOn lor"'" tumac:e Jo opetille ........ooWE.lllheo .
m.-r. IS a possbll1y at II'le tIIower 00fT.-.g onper1CldIo:dr
01' opernung conI~duelO' heat l)IJjd~ WIlIwlIhe
tumace t"JI acorrOnlItoon 01 ""arm_ather and IlNl from
!he pilot Thos IS normal operallon as long as there 1$
PQW9r 10 tOO lumace and I.... Qn-Olt·Fan sWllCh IS at the
'ON" pasno:;>n. It bIowe.operat,on '5 nOI desired.1tleOn·
Qtl·Fan sw'tcn may be sel In tile "'OFF' f)(l5,tlon 10 Cull ....
e-le<:tfl<':al power to the furnace
2. LIn'IIt Contml • ThiS furnace IS protllCted by IwO Mign
temperature "",IUIY I,m;t SWItCheS. The aU~'liary (upper~
lomlt SWItCh and the ">go temperature Oowe,) I,,,,,, sw,lclI
ar. automatIC reset types. It ,nher h""llrlP5. the burner
WIll shut 011. "erttlerh'IIII S"MlCfl 'f1psott 19"' 500n alte,
ruett,ng. set lhelumace Qn-Qt1·Fan IWl1eh 10 the "OFF"
IXIMoon and cag your authonzed serw:eman.
ADANGER:
eelOle placing In. fu~ In service it must be
cheeked to make $1.1 ... It i. equipped forthe type
01 g •• being used.. The burner name must also be
observed and adjusted If neceuary. Failure to
observe this caullon may reault In unnf,
oper.uon, explosion and/or fire, or •• phyxl1ltlon.
~ the following Hctlonl ~G •• SupplyM and
"Combustion Alr.~
3Gas Valw!· (UG. MM. and MB) ~ \llIS"' ...... torlhe
gas l...-naces ale I l00"J. shuI-off type and "'I.~ sate
d ror some reuon me oas 1S!<.me<! otl, The v ..... IS'
"slep-open.type wIw;t> mea"" I[ opens 10. "kIw-11ft!-
pos.toon.andafle<.1ew _. -st~.I0 ....
lu" •
4Roll Oul SW'IICIl' (MG· 056. 070& 077) The tumace IS
proleclOO tJy I manual resel safety S>¥lId'IlDc:ale<1 on the
lower .If bOx.
S Od Bumer Pnmary Control -The pnmaty control 10< ool
gunfumaces starts lhe bumer.m::KlltOr,,;. 5lI1e0Pll'/8'.ng
cycle, and shU1S lilt I:>Unler oft allhe end 01 •healing
cycle. The control uses atignt sens,,,!! tranSd..ee, to
determine If fu~ ,gnit!Ol1 has been soccessfullyall.,Red
It 'Ilntl'oo IS not all.tned by the end 01 the safety I{lMI()(l
tlmong p.mod, thecontrol shuts lhe Dumer oll and ,nters
"1oc~-oot -
6 a. Summe< Coohng . (A-wnes lumacesj; Your lumace
1$ eQUIpped 10 oPe<al' !he corculalng Ian only Tuom 1Ile
()n..()II·Fan SWlICn 10 In. ""FAN" poslOOn dunIg _rm
_alner The tIIOwer WIll now opera .. 10 arculIote .O' ...
...... home 1IYouIJIl1lle duct sysletn.
b St.mnlefCoolong-(S_lumaces): Yourlumloce
IS AJC reilly. fq"~d _ AJC relay and translotme<.
The utili IS equoppeo 10 use • 4'WlfI! lhennostaL When
uwoga 5-.WItfIlhe<mostal. RC and RH sh<.>I*:Itlt' Jl'I'I'II*1
(see onsllUCl101'l$ onel'-"'ed WIth lt1ermoslal), n a 2·wrt8
thennoslat 1$ used _h the 6·senes furnaces. 'I WIll be
necessary 10 usa 2'w"e retay kn. (pin '902649)
___________ NORDYNE - manufacturer 01 lntlH1herm and MiII,r products. _