Raypak XFyre 300A Manual

INSTALLATION & O ERATING
INSTRUCTIONS
9L9DG?+G ">>=;LAN= /=HD9;=K+"4 -+/=N
WARNING: Improper installation, adjustment, alteration, service or maintenance can
cause property damage, personal injury, exposure to hazardous materials* or loss of
life. Review the information in this manual carefully. *This unit contains materials that
have been identified as carcinogenic, or possibly carcinogenic, to humans.
FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors and
liquids or other combustible materials in the vicinity of this or any other appliance. To
do so may result in an explosion or fire.
WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas
supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency or
the gas supplier.
1@AKE9FM9DK@GMD<:=E9AFL9AF=<AFD=?A:D=;GF<ALAGF9F<C=HL9<B9;=FLLGL@=@=9L=JGJAF9K9>=HD9;=>GJ>MLMJ=
J=>=J=F;=
Models 300A–850A
Types H & WH



WARNINGS 4
-9QLL=FLAGFLG1@=K=1=JEK 
BEFORE INSTALLATION 5
-JG<M;L/=;=AHL 
*G<=D&<=FLA>A;9LAGF 
/9LAF?K9F< =JLA>A;9LAGFK 
&FKL9DD9LAGFK9L"D=N9LAGF 
GEHGF=FL)G;9LAGFK 
$=F=J9D&F>GJE9LAGF 
GENERAL SAFETY 7
1AE=1=EH=J9LMJ=/=D9LAGFK@AHK
AF0;9D<K 
INSTALLATION 8
&FKL9DD9LAGF G<=K 
"IMAHE=FL9K= 
D=9J9F;=K 
GE:MKLAGF9F<3=FLAD9LAGFAJ 
GFN=FLAGF9D GE:MKLAGFAJ0MHHDQ 
49L=J-AHAF? 
%Q<JGFA;%=9LAF? 
$9K0MHHDQ 
"D=;LJA;9D-GO=J GFF=;LAGFK 
#A=D<4AJAF? GFF=;LAGF 
3=FLAF? 
3=FLAF?&FKL9DD9LAGF1AHK 
3=FLAF? GF>A?MJ9LAGFK 
GF<=FK9L=*9F9?=E=FL 
,ML<GGJ&FKL9DD9LAGF 
GFLJGDK 
,H=J9LAF?&FKLJM;LAGFK 
WIRING DIAGRAM 44
START-U 45
-J=0L9JLMH 
-J=0L9JLMH @=;C 
&FALA9D0L9JLMH 
-J=H9J9LAGF 
0L9JL2H 
O ERATION 49
)A?@LAF?&FKLJM;LAGFK 
1G1MJF,>>$9KLGHHDA9F;= 
TROUBLESHOOTING 49
5#QJ="JJGJ G<=K 
%=9L=J"JJGJK 
%=9L=J#9MDLK 
5#QJ=#9MDL1=PL 
0=FKGJ/=KAKL9F;=39DM=K 
MAINTENANCE 53
0M??=KL=<*AFAEME
*9AFL=F9F;=0;@=<MD= 
-J=N=FLAN=*9AFL=F9F;=
0;@=<MD= 
A ENDIX 56
&FKA<=AJ GFL9EAF9LAGF 
&EHGJL9FL&FKLJM;LAGFK>GJL@=
GEEGFO=9DL@G>*9KK9;@MK=LLK 
WARRANTY 58
START-U CHECKLIST 59
CONTENTS



DANGER: &F<A;9L=K L@= HJ=K=F;= G> AEE=<A9L= @9R9J<K O@A;@ OADD ;9MK= K=N=J=
H=JKGF9DAFBMJQ<=9L@GJKM:KL9FLA9DHJGH=JLQ<9E9?=A>A?FGJ=<
WARNING: &F<A;9L=K L@= HJ=K=F;= G> @9R9J<K GJ MFK9>= HJ9;LA;=K O@A;@ ;GMD< ;9MK=
K=N=J=H=JKGF9DAFBMJQ<=9L@GJKM:KL9FLA9DHJGH=JLQ<9E9?=A>A?FGJ=<
CAUTION: &F<A;9L=K L@= HJ=K=F;= G> @9R9J<K GJ MFK9>= HJ9;LA;=K O@A;@ ;GMD< ;9MK=
EAFGJH=JKGF9DAFBMJQGJHJG<M;LGJHJGH=JLQ<9E9?=A>A?FGJ=<
NOTE: &F<A;9L=KKH=;A9DAFKLJM;LAGFKGFAFKL9DD9LAGFGH=J9LAGFGJE9AFL=F9F;=O@A;@
9J=AEHGJL9FL:MLFGLJ=D9L=<LGH=JKGF9DAFBMJQ@9R9J<K
WARNINGS
ay Attention to These Terms
DANGER: *9C= KMJ= L@= ?9K GF O@A;@ L@= :GAD=J
OADDGH=J9L=AKL@=K9E=LQH=9KL@9LKH=;A>A=<GFL@=
:GAD=JJ9LAF?HD9L=
WARNING: 0@GMD< GN=J@=9LAF? G;;MJ GJ L@= ?9K
KMHHDQN9DN=>9ADLGK@ML<GFGLLMJFG>>GJ<AK;GFF=;L
L@= =D=;LJA;9D KMHHDQ LG L@= :GAD=J &FKL=9< K@ML G>>
L@=?9KKMHHDQ9L9DG;9LAGF=PL=JF9DLGL@=:GAD=J
WARNING: !G FGL MK= L@AK :GAD=J A> 9FQ H9JL @9K
:==F MF<=J O9L=J &EE=<A9L=DQ ;9DD 9 IM9DA>A=<
K=JNA;= L=;@FA;A9F LG AFKH=;L L@= :GAD=J 9F< LG
J=HD9;=9FQH9JLG>L@=;GFLJGDKQKL=E9F<9FQ?9K
;GFLJGDO@A;@@9K:==FMF<=JO9L=J
WARNING: 1GEAFAEAR=L@=HGKKA:ADALQG>AEHJGH=J
GH=J9LAGFK=JAGMKH=JKGF9DAFBMJQ>AJ=GJ<9E9?=LG
L@=:GAD=J
T DO9QKC==H L@= 9J=99JGMF< L@=:GAD=J>J== G>
;GE:MKLA:D= E9L=JA9DK ?9KGDAF= 9F< GL@=J
>D9EE9:D=DAIMA<K9F<N9HGJK
T GAD=J K@GMD< F=N=J := ;GN=J=< GJ @9N= 9FQ
:DG;C9?=LGL@=>DGOG>>J=K@9AJLGL@=:GAD=J
WARNING - CALIFORNIA RO OSITION
65: 1@AK HJG<M;L ;GFL9AFK ;@=EA;9DK CFGOF LG L@=
0L9L=G> 9DA>GJFA9LG;9MK=;9F;=J:AJL@<=>=;LKGJ
GL@=JJ=HJG<M;LAN=@9JE
WARNING: /AKCG>=D=;LJA;9DK@G;C*GJ=L@9FGF=
<AK;GFF=;L KOAL;@ E9Q := J=IMAJ=< LG <==F=J?AR=
L@==IMAHE=FL:=>GJ=K=JNA;AF?
WARNING: 2) J=;G?FAR=< >M=D ?9K <=L=;LGJK 9J=
J=;GEE=F<=< AF 9DD =F;DGK=< HJGH9F= 9F< F9LMJ9D
?9K9HHDA;9LAGFKO@=J=AF L@=J= AK9 HGL=FLA9D >GJ9F
=PHDGKAN=EAPLMJ=G>>M=D?9KLG9;;MEMD9L=9F<L@=AJ
AFKL9DD9LAGF K@GMD< := AF 9;;GJ<9F;= OAL@ L@=
<=L=;LGJ E9FM>9;LMJ=JK J=;GEE=F<9LAGFK 9F<GJ
DG;9DD9OKJMD=KJ=?MD9LAGFKGJ;MKLGEK
WARNING: GL@F9LMJ9D?9K9F<HJGH9F=@9N=9F
G<GJ9FL9<<=<LG9A<AF<=L=;LAF?9?9KD=9C0GE=
H=GHD= E9Q FGL H@QKA;9DDQ := 9:D= LG KE=DD GJ
J=;G?FAR= L@AK G<GJ9FL &> QGM 9J= MFKMJ= GJ
MF>9EADA9JOAL@L@=KE=DDG>F9LMJ9D?9KGJHJGH9F=
9KC QGMJ DG;9D ?9K KMHHDA=J ,L@=J ;GF<ALAGFK KM;@
9K G<GJ9FL >9<= O@A;@ ;9MK=K L@= G<GJ9FL LG
<AEAFAK@ AF AFL=FKALQ ;9F 9DKG @A<= ;9EGM>D9?= GJ
GL@=JOAK=E9C=<=L=;LAF?9?9KD=9C:QKE=DDEGJ=
<A>>A;MDL
WARNING: 1@AK 9HHDA9F;= HJG<M;=K ;GF<=FK9L=
>JGE L@= >DM= HJG<M;LK L@9L AK 9;A<A; 9F< @A?@DQ
;GJJGKAN=  /9QH9C J=;GEE=F<K L@= MK= G> 9
;GF<=FK9L= F=MLJ9DAR=J CAL LG 9NGA< DGF?L=JE
<9E9?= LG L@= <J9AF9?= KQKL=E 9F< LG E==L DG;9D
;G<=J=IMAJ=E=FLK
WARNING: 3=FL ;GFF=;LGJK K=JNAF? 9FQ GL@=J
9HHDA9F;=KK@9DDFGL:=;GFF=;L=<AFLG9FQHGJLAGFG>
E=;@9FA;9D<J9>LKQKL=EKGH=J9LAF?MF<=J9HGKALAN=
HJ=KKMJ=&>9F5#QJ=@=9L=JAKAFKL9DD=<LGJ=HD9;=9F
=PAKLAF?@=9L=JL@=N=FLKQKL=E*201:=N=JA>A=<LG
:=G>L@=;GJJ=;LKAR=9F<G>GF=G>L@= 9L=?GJQ&3
N=FLE9L=JA9DKA<=FLA>A=<AFL@AKE9FM9D&>ALAK+,1
AL*201:=J=HD9;=<


BEFORE INSTALLATION
/9QH9CKLJGF?DQJ=;GEE=F<KL@9LL@AKE9FM9D:=J=
NA=O=<L@GJGM?@DQ:=>GJ=AFKL9DDAF?QGMJ5#QJ=@=9L=J
-D=9K= J=NA=O L@= $=F=J9D 09>=LQ AF>GJE9LAGF :=>GJ=
AFKL9DDAF?L@=@=9L=J#9;LGJQO9JJ9FLQ<G=KFGL9HHDQ
LG@=9L=JKL@9L@9N=:==FAEHJGH=JDQAFKL9DD=<GJGH=J
9L=< /=>=J LG L@= O9JJ9FLQ 9L L@= :9;C G> L@AK
E9FM9D &FKL9DD9LAGF 9F< K=JNA;= EMKL := H=J>GJE=<
:Q9IM9DA>A=<AFKL9DD=JK=JNA;=9?=F;QGJ?9KKMHHDA=J
&>9>L=JJ=NA=OAF?L@AKE9FM9DQGMKLADD@9N=IM=KLAGFK
O@A;@ L@AK E9FM9D <G=K FGL 9FKO=J HD=9K= ;GFL9;L
QGMJDG;9D/9QH9CJ=HJ=K=FL9LAN=GJNAKALGMJO=:KAL=9L
OOOJ9QH9C;GE
1@9FCQGM>GJHMJ;@9KAF?9/9QH9CHJG<M;L4=@GH=
QGMOADD:=K9LAK>A=<OAL@L@=@A?@IM9DALQ9F<<MJ9:ADALQ
G>GMJ=IMAHE=FL
roduct Receipt
,FJ=;=AHLG>QGMJ@=9L=JALAKKM??=KL=<L@9LQGMNAKM
9DDQ;@=;C>GJ=PL=JF9D<9E9?=LGL@=K@AHHAF?;J9L=&>
L@=;J9L=AK<9E9?=<E9C=9FGL=LGL@9L=>>=;LGFL@=
ADD G> )9<AF? O@=F KA?FAF? >GJ L@= K@AHE=FL +=PL
J=EGN= L@= @=9L=J >JGE L@= K@AHHAF? H9;C9?AF?
/=HGJL9FQ<9E9?=LGL@=;9JJA=JAEE=<A9L=DQ
,F G;;9KAGF AL=EK 9J= K@AHH=< DGGK= = KMJ= L@9L
QGM J=;=AN= L@= ;GJJ=;L FME:=J G> H9;C9?=K 9K AF<A
;9L=<GFL@=ADDG>)9<AF?
D9AEK>GJK@GJL9?=K9F<<9E9?=KEMKL:=>AD=<OAL@
L@=;9JJA=J :Q;GFKA?F==-=JEAKKAGF LGJ=LMJF ?GG<K
EMKL := J=;=AN=< >JGE L@= >9;LGJQ HJAGJ LG K@AHHAF?
$GG<K J=LMJF=< LG L@= >9;LGJQ OAL@GML 9F 9ML@GJAR=<
/=LMJF=<$GG<K/=;=AHLFME:=JOADDFGL:=9;;=HL=<
DDJ=LMJF=<?GG<K9J=KM:B=;LLG9J=KLG;CAF?;@9J?=
4@=FGJ<=JAF?H9JLKQGMEMKLKH=;A>QL@=EG<=D9F<
K=JA9DFME:=JG>L@=@=9L=J4@=FGJ<=JAF?MF<=JO9J
J9FLQ ;GF<ALAGFK QGM EMKL 9DKG KH=;A>Q L@= <9L= G>
AFKL9DD9LAGF
-MJ;@9K=< H9JLK 9J= KM:B=;L LG J=HD9;=E=FL GFDQ
MF<=J L@= E9FM>9;LMJ=J]K O9JJ9FLQ !=:ALK >GJ <=>=;
LAN=J=HD9;=E=FLH9JLKOADDFGL:=9;;=HL=<-9JLKOADD
:= J=HD9;=< AF CAF< GFDQ H=J /9QH9C]K KL9F<9J< O9J
J9FLA=K
Model Identification
1@= EG<=D A<=FLA>A;9LAGF FME:=J 9F< @=9L=J K=JA9D
FME:=J9J=>GMF<GFL@=@=9L=JJ9LAF?HD9L=DG;9L=<GF
L@= MHH=J J=9J B9;C=L H9F=D 1@= EG<=D FME:=J @9K
L@=>GJE%GJKAEAD9J<=H=F<AF?GFL@=@=9L=J
KAR=9F<;GF>A?MJ9LAGF1@=D=LL=JKAFL@=>AJKL?JGMHG>
;@9J9;L=JK A<=FLA>A=K L@= 9HHDA;9LAGF %  %Q<JGFA;
%=9LAF? 4%  !GE=KLA; %GL 49L=J 1@= FME:=J
O@A;@>GDDGOKA<=FLA>A=KL@=>AJAF?EG<==D=;LJGF
A; EG<MD9LAGF 1@= K=;GF< ?JGMH G> ;@9J9;L=JK
A<=FLA>A=KL@=KAR=G>L@=@=9L=JL@J==FME:=JKJ=HJ=
K=FLAF? L@= 9HHJGPAE9L= *12% AFHML 9F< O@=J=
9HHDA;9:D=9D=LL=JAF<A;9LAF?L@=E9FM>9;LMJAF?K=JA=K
Ratings and Certifications
0L9F<9J<K
T +0&7_ 0D9L=KL=<ALAGF$9K#AJ=<
%GL49L=JGAD=JK
T +0& 7 _ 0   D9L=KL =<ALAGF $9K
49L=J%=9L=JK
T +   D9L=KL =<ALAGF &F<MKLJA9D 9F<
GEE=J;A9D$9K#AJ=<-9;C9?=GAD=JK
T 0 .*!/MD=
T 0 ;=JLA>A=< DGOD=9<  ;GEHDA9F;= OAL@
9DA>GJFA9  9F< 3=JEGFL )=?AKD9LAN= ;L
J=IMAJ=E=FLK
DD /9QH9C @=9L=JK 9J= +9LAGF9D G9J< /=?AKL=J=<
9F< <=KA?F;=JLA>A=< 9F< L=KL=< :Q L@= 9F9<A9F
0L9F<9J<KKKG;A9LAGF 0>GJL@=209F< 9F9<9
"9;@@=9L=JAK;GFKLJM;L=<AF9;;GJ<9F;=OAL@0=;LAGF
&3 G> L@=E=JA;9F 0G;A=LQ G> *=;@9FA;9D "F?AF==JK
0*"GAD=J 9F<-J=KKMJ=3=KK=D G<=9F< :=9JK
L@=0*"[%\ KL9EH1@AK @=9L=J9DKG;GEHDA=K OAL@
L@=D9L=KL=<ALAGFG>L@=0%/"0L9F<9J<
Installations at Elevation
/9L=< AFHMLK 9J= KMAL9:D= >GJ MH LG  >L =D=N9LAGF
OAL@GML<=J9LAF? GFKMDLQGMJDG;9DJ=HJ=K=FL9LAN=GJ
L@= >9;LGJQ >GJ AFKL9DD9LAGFK 9L 9DLALM<=K GN=J  >L
9:GN=K=9D=N=D+G@9J<O9J=;@9F?=K9J=J=IMAJ=<LG
L@= @=9L=JK >GJ AFKL9DD9LAGFK MH LG  >L 9<BMKL
E=FLKE9Q:=J=IMAJ=<
WARNING: DL=JAF? 9FQ /9QH9C HJ=KKMJ= N=KK=D
:Q AFKL9DDAF? J=HD9;=E=FL @=9L =P;@9F?=JK GJ 9FQ
0*" H9JLK FGL E9FM>9;LMJ=< 9F<GJ 9HHJGN=< :Q
/9QH9COADDAFKL9FLDQNGA<L@=0*"9F< 0J9LAF?K
G> L@= N=KK=D 9F< 9FQ /9QH9C O9JJ9FLQ GF L@=
N=KK=D DL=JAF? L@= 0*" GJ 0 J9LAF?K G> L@=
N=KK=D 9DKG NAGD9L=K F9LAGF9D KL9L= 9F< DG;9D
9HHJGN9D;G<=K

General Information
Table A: Basic Data

NOTE: JACKETTOPSLOPESFROM
FRONTTOREAR
CONTROL/SENSOR
WIRING
Component Locations
Fig. 1: Component Locations — Sides
Fig. 2: Component Locations — Top Fig. 3: Component Locations — Rear
Model
No.
MBTUH
Input Water
conn.
(NPT)
Gas conn.
(NPT)
Vent Size
(inches)
Max. Min. N P Flue Intake
   \ \ \  
   \ \ \  
   \ \ \  
   \ \ \  
   \ \ \  
*G<=DK@GOF GEHGF=FLDG;9LAGFKE9QN9JQKDA?@LDQAFKE9DD=JEG<=DK


GENERAL SAFETY
1G E==L ;GEE=J;A9D @GL O9L=J MK= F==<K L@= @A?@
DAEALK9>=LQ;GFLJGDGFL@AKO9L=J@=9L=JOADDK@MLG>>L@=
E9AF?9KN9DN=:=>GJ=L@=GMLD=LL=EH=J9LMJ=J=9;@=K
S# %GO=N=J O9L=JL=EH=J9LMJ=K GN=J S# ;9F
;9MK= AFKL9FL K=N=J= :MJFK GJ <=9L@ >JGE K;9D<K
4@=F KMHHDQAF? ?=F=J9D HMJHGK= @GL O9L=J L@= J=;
GEE=F<=<AFALA9DK=LLAF?>GJL@=L=EH=J9LMJ=;GFLJGDAK
S#
09>=LQ9F<=F=J?Q;GFK=JN9LAGF9J=>9;LGJKLG:=;GF
KA<=J=< O@=F K=LLAF? L@= O9L=J L=EH=J9LMJ= GF L@=
L@=JEGKL9L 1@= EGKL =F=J?Q=>>A;A=FL GH=J9LAGF OADD
J=KMDLO@=FL@=L=EH=J9LMJ=K=LLAF?AKL@=DGO=KLL@9L
K9LAK>A=KL@=F==<KG>L@=9HHDA;9LAGF
49L=J L=EH=J9LMJ= GN=J S# ;9F ;9MK= AFKL9FL
K=N=J=:MJFKGJ<=9L@>JGEK;9D<K @AD<J=F<AK9:D=<
9F<=D<=JDQ9J=9L@A?@=KLJAKCG>:=AF?K;9D<=<
T #==DO9L=J:=>GJ=:9L@AF?GJK@GO=JAF?
T 1=EH=J9LMJ=DAEALAF?N9DN=K9J=9N9AD9:D=
*9PAEME O9L=J L=EH=J9LMJ=K G;;MJ BMKL 9>L=J L@=
@=9L=J]K :MJF=J @9K K@ML G>> 1G <=L=JEAF= L@= O9L=J
L=EH=J9LMJ= :=AF? <=DAN=J=< LMJF GF 9 @GL O9L=J
>9M;=L 9F< HD9;= 9 L@=JEGE=L=J AF L@= @GL O9L=J
KLJ=9E9F<J=9<L@=L@=JEGE=L=J
NOTE: 4@=F L@AK @=9L=J AK KMHHDQAF? ?=F=J9D
HMJHGK= @GL O9L=J >GJ MK= :Q AF<ANA<M9DK 9
L@=JEGKL9LA;9DDQ;GFLJGDD=<EAPAF?N9DN=>GJJ=<M;AF?
HGAFLG> MK= O9L=J L=EH=J9LMJ=AK J=;GEE=F<=< LG
J=<M;= L@= JAKC G> K;9D< AFBMJQ GFL9;L 9 DA;=FK=<
HDME:=J GJ L@= DG;9D HDME:AF? 9ML@GJALQ >GJ >MJL@=J
AF>GJE9LAGF
Water temperature over 125°F can
cau s e i nsta n t s e v e r e b u r n s o r d eath
from scalds.
Children, disabled, and elderly are
at highest risk of being scalded.
See instruction manual before set-
ting temperature at water heater.
Feel water before bathing or show-
ering.
Temperature limiting valves are
available, see manual.
Time/Temperature
Relationships in Scalds
1@= >GDDGOAF? ;@9JL <=L9ADK L@= J=D9LAGFK@AH G> O9L=J
L=EH=J9LMJ=9F< LAE=OAL@J=?9J< LGK;9D< AFBMJQ9F<
E9Q := MK=< 9K 9 ?MA<= AF <=L=JEAFAF? L@= K9>=KL
O9L=JL=EH=J9LMJ=>GJQGMJ9HHDA;9LAGFK
Water
Temp.
Time to Produce Serious
Burn
120°F More than 5 minutes
125°F 1-1/2 to 2 minutes
130°F About 30 seconds
135°F About 10 seconds
140°F Less than 5 seconds
145°F Less than 3 seconds
150°F About 1-1/2 seconds
155°F About 1 second
Table courtesy of The Shriners Burn Institute
Table C: Time to Produce Serious Burn
Model No. Heater Water Volume
(gallons)
 
 
 
 
 
Table B: Heater Water Volume
CAUTION: %GLL=J O9L=J AF;J=9K=K L@= JAKC G>
K;9D<AF?1@=J=AK 9@GLO9L=J K;9D<HGL=FLA9D A>L@=
L@=JEGKL9LAKK=LLGG@A?@

&>L@=@=9L=JF==<KLG:=K=;MJ=<LGL@=?JGMF<MK=
L@=@GD=KAFL@=9F;@GJAF?D=?KGFL@=@=9L=J
Clearances
Indoor Installations
4@=FAFKL9DD=<9;;GJ<AF?LGL@=DAKL=<EAFAEME;D=9J
9F;=K >JGE ;GE:MKLA:D= ;GFKLJM;LAGF L@=K= @=9L=JK
;9F:=K=JNA;=<OAL@GMLJ=EGNAF?H=JE9F=FLKLJM;LMJ
9D;GFKLJM;LAGF 9JGMF<L@=@=9L=J%GO=N=J >GJ=9K=
G>K=JNA;AF?O=J=;GEE=F<9;D=9J9F;=G>9LD=9KL
AFAF>JGFL9LD=9KLAFGFL@=J=9J9F<AF9:GN=
L@=LGHG> L@=@=9L=J1@AKOADD9DDGO L@=@=9L=JLG :=
K=JNA;=<AFALKAFKL9DD=<DG;9LAGFOAL@GMLEGN=E=FLGJ
J=EGN9DG>L@=@=9L=J
0=JNA;= ;D=9J9F;=K D=KK L@9F L@= EAFAEME E9Q
J=IMAJ=J=EGN9DG>L@=@=9L=JLGK=JNA;==AL@=JL@=@=9L
=P;@9F?=JGJL@= :MJF=J;GEHGF=FLK&F =AL@=J;9K=
L@= @=9L=J EMKL := AFKL9DD=< AF 9 E9FF=J L@9L OADD
=F9:D=L@=@=9L=JLG:=K=JNA;=<OAL@GMLJ=EGNAF?9FQ
KLJM;LMJ=9JGMF<L@=@=9L=J
Outdoor Installations
1@=K=@=9L=JK9J=<=KA?F;=JLA>A=<>GJGML<GGJAFKL9DD9
LAGF%=9L=JKEMKLFGL:=AFKL9DD=<MF<=J9FGN=J@9F?
MFD=KK;D=9J9F;=K9J=AF9;;GJ<9F;=OAL@DG;9DAFKL9D
D9LAGF;G<=K9F<L@=J=IMAJ=E=FLKG>L@=?9KKMHHDA=J
1@J==KA<=KEMKL:=GH=FAFL@=9J=9MF<=JL@=GN=J
@9F? /GG> O9L=J <J9AF9?= EMKL := <AN=JL=< 9O9Q
>JGE@=9L=JKAFKL9DD=<MF<=JGN=J@9F?K
Equipment Base
The heater must be mounted on a level, structural-
ly sound surface. 1@= @=9L=J AK 9HHJGN=< >GJ
AFKL9DD9LAGFGF9;GE:MKLA:D=KMJ>9;=:MLEMKL+"3"/
:= AFKL9DD=< GF ;9JH=LAF? $9K>M=D=< =IMAHE=FL
AFKL9DD=<AF=F;DGK=<H9JCAF??9J9?=KEMKL:=DG;9L=<
9LD=9KLAF9:GN=L@=>DGGJ
&F9<<ALAGFL@=@=9L=JK@9DD:=AFKL9DD=<KM;@L@9LL@=
?9K A?FALAGF KQKL=E ;GEHGF=FLK 9J= HJGL=;L=< >JGE
O9L=J<JAHHAF? KHJ9QAF?J9AF=L; <MJAF?9HHDA9F;=
GH=J9LAGF GJ K=JNA;= ;AJ;MD9LGJ J=HD9;=E=FL ;GFLJGD
J=HD9;=E=FL=L;

Table D: Clearances — Indoor Installations
INSTALLATION
Installation Codes
&FKL9DD9LAGFKEMKL>GDDGOL@=K=;G<=K
T )G;9DKL9L=HJGNAF;A9D9F<F9LAGF9D;G<=KD9OK
J=?MD9LAGFK9F<GJ<AF9F;=K
T +9LAGF9D#M=D$9K G<=+0&7+#-Y
D9L=KL=<ALAGF+#$ 
T +9LAGF9D "D=;LJA;9D G<= +0&+#-   D9L=KL
=<ALAGF+" 
T 0L9F<9J< >GJ GFLJGDK 9F< 09>=LQ !=NA;=K >GJ
MLGE9LA;9DDQ #AJ=< GAD=JK +0&0*" 0!
 0!O@=FJ=IMAJ=<
T #GJ 9F9<9 GFDQ + 0  +9LMJ9D $9K
9F< -JGH9F= &FKL9DD9LAGF G<= 9F< 0 
" -9JL  !,+,1AFKL9DDGF;9JH=LAF?
CAUTION: 1@AK:GAD=JK@GMD<:=DG;9L=<AF9F9J=9
O@=J=O9L=JD=9C9?=OADDFGLJ=KMDLAF<9E9?=LGL@=
9J=99<B9;=FL LGL@= 9HHDA9F;=KGJ LGL@= KLJM;LMJ=
4@=F KM;@ DG;9LAGFK ;9FFGL := 9NGA<=< AL AK
J=;GEE=F<=<L@9L9KMAL9:D=;9L;@H9F9<=IM9L=DQ
<J9AF=< := AFKL9DD=< MF<=J L@= 9HHDA9F;= 1@= H9F
EMKLFGLJ=KLJA;L9AJ>DGO
Heater
Side
Min. Clearances
from Combustible
Surfaces
Minimum
Service
Clearances
#DGGJ \ \
/=9J \ \
/A?@L0A<= \ \
)=>L0A<= \ \
1GH \ \
#JGFL ,H=F \
3=FL \ \
CAUTION: 1@=:GAD=JEMKL:=EGMFL=<GF9D=N=D
:9K=LG9DDGO;GF<=FK9L=LG<J9AFHJGH=JDQ>JGEL@=
@=9L =P;@9F?=J  The condensate is acidic and
highly corrosive.
NOTE: 1@= >GDDGOAF? AFKLJM;LAGFK 9J= AFL=F<=< >GJ
KAEHD= 9HHDA;9LAGFK  #GJ EGJ= <=L9AD=<
;GF>A?MJ9LAGFK 9F< K=LMH ;GFKMDL L@= 3"/0 &
GFLJGD&,*9FM9D 9L9DG?
NOTE: 1@= LGH B9;C=L G> L@= :GAD=J AK KDGH=< >JGE
>JGFLLGJ=9J


Fig. 4: Minimum Clearances from Combustible
Surfaces — Indoor and Outdoor Installations
Table E: Clearances — Outdoor Installations
TOP VIEW
FRONT VIEW
Combustion and Ventilation Air
Indoor Units
1@AK@=9L=JEMKL:=KMHHDA=<OAL@KM>>A;A=FLIM9FLALA=K
G>FGF;GFL9EAF9L=<9AJLGKMHHGJLHJGH=J;GE:MKLAGF
9F<=IMAHE=FLN=FLAD9LAGF GE:MKLAGF9AJ;9F:=KMH
HDA=<NA9;GFN=FLAGF9DE=9FKO@=J=;GE:MKLAGF9AJAK
<J9OF >JGE L@= 9J=9 AEE=<A9L=DQ KMJJGMF<AF? L@=
@=9L=J GJ NA9 <AJ=;L N=FL O@=J= ;GE:MKLAGF 9AJ AK
<J9OF<AJ=;LDQ>JGEGMLKA<=DDAFKL9DD9LAGFKEMKL;GE
HDQOAL@L@=J=IMAJ=E=FLKG>L@=+#$ 20GJ
 9F9<99F<9DDDG;9D;G<=K
NOTE: 2K= G> L@AK :GAD=J AF ;GFKLJM;LAGF 9J=9K
O@=J= >AF= H9JLA;MD9L= E9LL=J KM;@ 9K ;GF;J=L= GJ
<JQO9DD<MKLAKHJ=K=FLE9QJ=KMDLAF<9E9?=LGL@=
:GAD=JL@9LAKFGL;GN=J=<:QL@=O9JJ9FLQ&>GH=J9L=<
AF 9 ;GFKLJM;LAGF =FNAJGFE=FL 9 ;D=9F KGMJ;= G>
;GE:MKLAGF 9AJ EMKL := HJGNA<=< <AJ=;LDQ LG L@=
:GAD=J
CAUTION: GE:MKLAGF 9AJ EMKL FGL :=
;GFL9EAF9L=< :Q ;GJJGKAN= ;@=EA;9D >ME=K O@A;@
;9F<9E9?=L@=:GAD=J9F< NGA<L@=O9JJ9FLQ0==
L@=HH=F<AP
NOTE: &L AK J=;GEE=F<=< L@9L L@= AFL9C= N=FL :=
AFKMD9L=<AF;GD<;DAE9L=KLGEAFAEAR=KO=9LAF?
3=FLAF?FGLK@GOF>GJ;D9JALQ%=9L=JEMKL:=N=FL=<H=J
AFKLJM;LAGFKAFL@AKE9FM9D
Heater
Side
Min. Clearances
from Combustible
Surfaces
Minimum
Service
Clearances
/=9J \ \
/A?@L0A<= \ \
)=>L0A<= \ \
1GH 2FG:KLJM;L=< \
#JGFL ,H=F \
3=FL
1=JEAF9LAGF \ \

U.S. Installations
1 Canadian Installations 2
A Clearance above grade, veranda, porch,
deck, or balcony 1 ft (30 cm) 1 ft (30 cm)
B Clearance to window or door that may be
opened
4 ft (1.2m) below or to side
of opening; 1 foot (30 cm)
above opening
3 ft (91 cm)
C Clearance to permanently closed window * *
D
Vertical clearance to ventilated soffit located
above the terminal within a horizontal dis-
tance of 2 ft (61cm) from the centerline of the
terminal
5 ft (1.5m) *
E Clearance to unventilated soffit * *
F Clearance to outside corner * *
G Clearance to inside corner 6 ft (1.83m) *
H Clearance to each side of center line ex-
tended above meter/regulator assembly *
3 ft (91 cm) within a height
15 ft above the me-
ter/regulator assembly
I Clearance to service regulator vent outlet * 6 ft (1.83m)
J
Clearance to non-mechanical air supply inlet
to building or the combustion air inlet to any
other appliance
4 ft (1.2m) below or to side
of opening; 1 ft (30 cm)
above opening
3 ft (91 cm)
K Clearance to mechanical air supply inlet 3 ft (91 cm) above if within
10 ft (3m) horizontally 6 ft (1.83m)
L Clearance above paved sidewalk or paved
driveway located on public property 7 ft (2.13m) 7 ft (2.13m) t
M Clearance under veranda, porch, deck or
balcony * 12 in. (30 cm) TT
1 In accordance with the current ANSI Z223.1/NFPA 54 National Fuel Gas Code
2 In accordance with the current CAN/CSA-B149 Installation Codes
t Vent terminal shall not terminate directly above sidewalk or paved driveway located between 2 single family dwellings that serves
both dwellings
TT Permittedonly if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor and top of terminal and
underside of veranda, porch, deck or balcony is greater than 1 ft (30cm)
* Clearancesinaccordance with local installation codes and the requirements of the gas supplier
Fig. 5: Minimum Clearances from Vent/Air Inlet Terminations – Indoor and Outdoor Installations
Table F: Vent/Air Inlet Termination Clearances


Combustion Air Filter
1@AK@=9L=JAKKMHHDA=<OAL@9FAFL=?J9D;GE:MKLAGF9AJ
>ADL=J1@AK>ADL=JOADDJ=<M;=L@=9EGMFLG>H9JLA;MD9L=K
L@9L H9KK L@JGM?@ L@= ;GE:MKLAGF KQKL=E 9F< @=9L
=P;@9F?=J:MLOADDFGLHJGL=;L9?9AFKL;@=EA;9DAFKA<=
9AJ ;GFL9EAF9LAGF 0==HH=F<AP 1@= >ADL=J EMKL :=
;@=;C=<H=JAG<A;9DDQ LGN=JA>QL@9L 9<=IM9L=;GE:MK
LAGF 9AJ AK :=AF? KMHHDA=< LG L@= @=9L=J 0== L@=
*9AFL=F9F;=K=;LAGFG>L@AKE9FM9D>GJAF>GJE9LAGFGF
;@=;CAF?L@=>ADL=J9F<=KL9:DAK@AF?K=JNA;=AFL=JN9DK
Direct Vent
&>GMLKA<=9AJAK<J9OFL@JGM?@L@=AFL9C=HAH=<AJ=;LDQ
LGL@=MFAL>GJ;GE:MKLAGF
 &FKL9DDL@=;GE:MKLAGF9AJ<M;LAF?CAL
 &FKL9DD ;GE:MKLAGF 9AJ <AJ=;L N=FL AF 9;;GJ<9F;=
OAL@#A?@GJARGFL9DGJ#A?N=JLA;9DG>L@AK
E9FM9D
 3=FLAD9LAGFG>L@=KH9;=G;;MHA=<:QL@=@=9L=JK
AKJ=;GEE=F<=<9F<;9F:=HJGNA<=<:Q9FGH=F
AF?K >GJ N=FLAD9LAGF 9AJ 9L L@= @A?@=KL HJ9;LA;9D
HGAFL;GEEMFA;9LAF?OAL@L@=GML<GGJK1@=LGL9D
;JGKKK=;LAGF9D9J=9K@GMD<:=9LD=9KLAFaG>>J==
9J=9H=J12%EEaH=JC4G>LGL9D
AFHMLJ9LAF?G>9DD=IMAHE=FLAFL@=JGGEO@=FL@=
GH=FAF? AK ;GEEMFA;9LAF? <AJ=;LDQ OAL@ L@= GML
<GGJK GJ L@JGM?@ N=JLA;9D <M;LK  1@= LGL9D
;JGKKK=;LAGF9D9J=9K@GMD<:=9LD=9KLAFaG>>J==
9J=9H=J12%EEaH=JC4G>LGL9D
AFHMLJ9LAF?G>9DD=IMAHE=FLAFL@=JGGEO@=FL@=
GH=FAF? AK ;GEEMFA;9LAF? OAL@ L@= GML<GGJK
L@JGM?@@GJARGFL9D<M;LK!9E9?=LGL@==IMAH
E=FL<M=LGAF9<=IM9L=N=FLAD9LAGFG>L@=KH9;=AK
FGL9O9JJ9FL9:D=>9ADMJ=
 &F;GD<;DAE9L=K9F<LGEALA?9L=HGL=FLA9D>J==R=
MH/9QH9C@A?@DQJ=;GEE=F<KL@=AFKL9DD9LAGFG>
9 EGLGJAR=< K=9D=< <9EH=J GF L@= 9AJ AFL9C= LG
HJ=N=FL L@= ;AJ;MD9LAGF G> ;GD< 9AJ L@JGM?@ L@=
@=9L=J<MJAF?L@=FGFGH=J9LAF?@GMJK
TruSeal™ Combustion Air
&F9<<ALAGFLGL@=HJ=NAGMKKL=HK;GE:MKLAGF9AJE9Q
:=<M;L=<<AJ=;LDQLGL@=@=9L=J:QMKAF?-3  -3
GJK=9D=<KAF?D=O9DD?9DN9FAR=<<M;LAF?1@=<M;LOADD
9LL9;@<AJ=;LDQLGL@=9AJ;GDD9JDG;9L=<GFL@=J=9JG>L@=
@=9L=JO@=FL@=;GE:MKLAGF9AJ<M;LAF?CALAKAFKL9DD=<
MKAF?L@J==GJ>GMJK@==LE=L9DK;J=OKFGLKMHHDA=<
=IM9DDQ HGKALAGF=< 9JGMF< L@= ;AJ;ME>=J=F;= G> L@=
<M;L1@=K;J=OK9F< <M;L;GFF=;LAGF HGAFL EMKL:=
K=9D=< OAL@ /13 FGL KMHHDA=<1JM0=9D AK ?=F=J9DDQ
MK=<O@=F<9E9?AF?;GFL9EAF9FLK9J=HJ=K=FLAFL@=
E=;@9FA;9DJGGEDD<M;LAF?EMKL:=K=D>KMHHGJL=<
Conventional Combustion Air
Supply
U.S. Installations
All Air from Inside the Building
1@=;GF>AF=<KH9;=K@9DD:=HJGNA<=<OAL@TWO H=J
E9F=FL GH=FAF?K ;GEEMFA;9LAF? <AJ=;LDQ OAL@ 9F
9<<ALAGF9DJGGEKG>KM>>A;A=FLNGDME=KGL@9LL@=;GE
:AF=< NGDME= G> 9DD KH9;=K E==LK L@= ;JAL=JA9 >GJ 9
JGGED9J?=AF;GEH9JAKGF+#$ 1@=LGL9DAFHMLG>9DD
?9K MLADAR9LAGF =IMAHE=FL AFKL9DD=< AF L@= ;GE:AF=<
KH9;= K@9DD := ;GFKA<=J=< AF E9CAF? L@AK <=L=JEAF9
LAGFEach opening K@9DD@9N=9EAFAEME>J==9J=9G>
AFH=J12%EEH=JC4G>L@=LGL9D
AFHMLJ9LAF?G>9DD?9KMLADAR9LAGF=IMAHE=FLAFL@=;GF
>AF=<KH9;=:MLFGLD=KKL@9FAF;E,F=
GH=FAF?K@9DD;GEE=F;=OAL@AFAFEEG>L@=
LGH 9F< GF= GH=FAF? K@9DD ;GEE=F;= OAL@AF  AF
 EE G> L@= :GLLGE G> L@= =F;DGKMJ= 1@= EAFA
EME<AE=FKAGFG>9AJGH=FAF?KK@9DD:=FGLD=KKL@9F
AFEEAF9FQ<AJ=;LAGF
All Air from Outdoors
1@= ;GF>AF=< KH9;= K@9DD ;GEEMFA;9L= OAL@ L@= GML
<GGJKAF9;;GJ<9F;= OAL@ GF= G>L@= E=L@G<K :=DGO
1@=EAFAEME<AE=FKAGFG>9AJ GH=FAF?KK@9DDFGL :=
D=KKL@9FAFEEAF9FQ<AJ=;LAGF4@=J=<M;LK
9J= MK=< L@=Q K@9DD := G> L@= K9E= ;JGKKK=;LAGF9D
9J=99KL@=F=L>J==9J=9G>L@=GH=FAF?KLGO@A;@L@=Q
;GFF=;L
 Two permanent openings GF= ;GEE=F;AF?
OAL@AF  AF  EE G> L@= LGH 9F< GF= ;GE
E=F;AF?OAL@AF  AFEE G> L@=:GLLGE G>
L@= =F;DGKMJ= K@9DD := HJGNA<=< 1@= GH=FAF?K
K@9DD ;GEEMFA;9L= <AJ=;LDQ GJ :Q <M;LK OAL@ L@=
GML<GGJKGJKH9;=K;J9ODGJ9LLA;L@9L>J==DQ;GE
EMFA;9L=OAL@L@=GML<GGJK
CAUTION: 2K= 1JM0=9D ;GE:MKLAGF 9AJ A>
<9E9?AF? 9AJ:GJF= ;GFL9EAF9FLK 9J= GJ E9Q :=
HJ=K=FLAFL@=:GAD=J9J=90==L@=HH=F<APG>L@AK
E9FM9DJ=?9J<AF?9AJ;GFL9EAF9LAGF
NOTE: 1G=FKMJ=HJGH=J;GGDAF?9F<N=FLAD9LAGFG>
;GEHGF=FLK <G FGL :DG;C 9FQ 9AJ GH=FAF?K AF L@=
;9:AF=L


9 4@=J= <AJ=;LDQ ;GEEMFA;9LAF? OAL@ L@= GML
<GGJK GJ O@=J= ;GEEMFA;9LAF? LG L@=
GML<GGJK L@JGM?@ N=JLA;9D <M;LK each open-
ing K@9DD @9N=9EAFAEME>J==9J=9 G> AF
H=J  12%  EEH=J C4 G> LGL9D
AFHMLJ9LAF?G>9DD=IMAHE=FLAFL@==F;DGKMJ=
: 4@=J= ;GEEMFA;9LAF? OAL@ L@= GML<GGJK
L@JGM?@ @GJARGFL9D <M;LK =9;@ GH=FAF? K@9DD
@9N=9EAFAEME>J==9J=9G>AFH=J
12% EEH=J C4G> LGL9D AFHMLJ9L
AF?G>9DD=IMAHE=FLAFL@==F;DGKMJ=
 One permanent opening;GEE=F;AF?OAL@AF
AFEEG>L@=LGHG>L@==F;DGKMJ=K@9DD:=
H=JEALL=<O@=J=L@==IMAHE=FL@9K;D=9J9F;=KG>
9LD=9KLAFEE>JGEL@=KA<=K9F<:9;C9F<
AFEE>JGEL@=>JGFLG>L@=9HHDA9F;=1@=
GH=FAF? K@9DD <AJ=;LDQ ;GEEMFA;9L= OAL@ L@= GML
<GGJKGJK@9DD ;GEEMFA;9L= L@JGM?@ 9N=JLA;9D GJ
@GJARGFL9D <M;L LG L@= GML<GGJK GJ KH9;=K L@9L
>J==DQ ;GEEMFA;9L= OAL@ L@= GML<GGJK 9F< K@9DD
@9N=9EAFAEME>J==9J=9G>
9 AFH=J 12%  EEH=J C4G>
L@=LGL9DAFHMLJ9LAF?G>9DD=IMAHE=FLDG;9L=<AF
L@==F;DGKMJ=9F<
: +GLD=KKL@9FL@=KMEG>L@=9J=9KG>9DDN=FL
;GFF=;LGJKAFL@=;GF>AF=<KH9;=
 3=FLAD9LAGF G> L@= KH9;= G;;MHA=< :Q L@= @=9L=J
K@9DD:=HJGNA<=<:Q9FGH=FAF?K>GJN=FLAD9LAGF
9AJ 9L L@= @A?@=KL HJ9;LA;9D HGAFL ;GEEMFA;9LAF?
OAL@L@=GML<GGJK1@=LGL9D;JGKKK=;LAGF9D9J=9G>
KM;@ 9F GH=FAF?K K@9DD := 9L D=9KL  G> L@=
9J=9J=IMAJ=<AF9F<:=DGO:MLAFFG;9K=
K@9DDL@=;JGKKK=;LAGF9D9J=9:=D=KKL@9FAF
;E
 #GJ@=9L=JKMKAF?9:9JGE=LJA;<9EH=JAFL@=N=FL
KQKL=E L@=J= K@9DD := 9 H=JE9F=FL 9AJ KMHHDQ
GH=FAF?K@9NAF?9;JGKKK=;LAGF9J=9G>FGLD=KK
L@9FAFH=J12%EEH=JC4MH
LG 9F< AF;DM<AF?  EADDAGF 12% HDMK  AFH=J

WARNING: !G FGL MK= L@= [GF= H=JE9F=FL
GH=FAF?\ E=L@G< A> L@= =IMAHE=FL JGGE AK MF<=J
F=?9LAN=HJ=KKMJ=;GF<ALAGFK
CAUTION: DD;GE:MKLAGF9AJEMKL:=<J9OF>JGE
L@=9AJGMLKA<=G>L@=:MAD<AF?L@=E=;@9FA;9D=IMAH
E=FL JGGE EMKL ;GEEMFA;9L= <AJ=;LDQ OAL@ L@=
GML<GGJK
Canadian Installations
 12%  EEH=J C4 AF =P;=KK G> 
EADDAGF 12% 1@AK GH=FAF?K K@9DD := =AL@=J
DG;9L=<9LGJ<M;L=<LG9HGAFLFGLEGJ=L@9FAF
EEFGJD=KKL@9FAFEE9:GN=L@=
>DGGJD=N=D1@=<M;L;9F9DKG[?GGK=F=;C\L@JGM?@
L@=JGG>1@=<M;LAKHJ=>=JJ=<LG:=KLJ9A?@L<GOF
9F<L=JEAF9L=<AFEE>JGEL@=>DGGJ:ML
FGL F=9J HAHAF? 1@AK 9AJ KMHHDQ GH=FAF? J=IMAJ=
E=FL K@9DD := AF 9<<ALAGF LG L@= 9AJ GH=FAF? >GJ
N=FLAD9LAGF9AJJ=IMAJ=<AF9:GN=
 #GJ@=9L=JKO@=F9AJKMHHDQAKHJGNA<=<:QF9LMJ9D
9AJ >DGO >JGE GML<GGJK >GJ 9 HGO=J :MJF=J 9F<
L@=J=AKFG<J9>LJ=?MD9LGJ<J9>L@GG<GJKAEAD9J>DM=
?9K<ADMLAGF<=NA;=AFKL9DD=<AFL@=K9E=KH9;=AF
9<<ALAGFLGL@=GH=FAF?>GJN=FLAD9LAGF9AJJ=IMAJ=<
AFL@=J=K@9DD:=9H=JE9F=FL9AJKMHHDQGH=F
AF?K @9NAF? 9 LGL9D ;JGKKK=;LAGF9D 9J=9  G> FGL
D=KKL@9FAF>GJ=9;@12%EEH=J
C4 G> LGL9D J9L=< AFHML G> L@= :MJF=JK 9F< L@=
DG;9LAGF G> L@= GH=FAF?K K@9DD FGL AFL=J>=J= OAL@
L@=AFL=F<=<HMJHGK=G>L@=GH=FAF?K>GJN=FLAD9
LAGF 9AJ J=>=JJ=< LG AF  1@AK GH=FAF?K ;9F :=
<M;L=<LG9 HGAFLFGLEGJ=L@9F AFEE
FGJD=KKL@9FAFEE9:GN=L@=>DGGJD=N=D
1@=<M;L;9F9DKG[?GGK=F=;C\L@JGM?@L@=JGG>
1@= <M;L AK HJ=>=JJ=< LG := KLJ9A?@L <GOF  AF
EE>JGEL@=>DGGJ:MLFGLF=9JHAHAF?
 /=>=JLGL@=&FKL9DD9LAGF G<=>GJ9<<ALAGF9D
AF>GJE9LAGF
Water iping
General
1@=@=9L=JK@GMD<:=DG;9L=<KGL@9L9FQO9L=JD=9CK
OADDFGL ;9MK=<9E9?=LG L@=9<B9;=FL 9J=9GJ KLJM;
LMJ=K
WARNING: 9J=EMKL:=L9C=FLG=FKMJ=L@9LL@=
=IMAHE=FL JGGE AK FGL MF<=J F=?9LAN= HJ=KKMJ=
;GF<ALAGFK
NOTE: /=>=J LG L@= 3"/0 &  *9FM9D  9L9DG?
>GJ<=L9AD=<AFKLJM;LAGFKJ=?9J<AF?L@=N9J
AGMK9HHDA;9LAGFKKMHHGJL=<:QL@=3"/0& ;GFLJGD
KQKL=E
WARNING: -MEH EGLGJK K@GMD< +,1 :=
KMHHGJL=< :Q 9FQ LQH= G> KL9F< GJ KMHHGJL >JGE
9:GN= <M= LG HGKKA:D= EAK9DA?FE=FL G> HMEH 9F<
EGLGJO@A;@E9QG;;MJ

Relief Valve Installation and iping
1@=@=9L=JAKKMHHDA=<OAL@90=;LAGF&3[%3\KL9EH=<
J=DA=>N9DN=KAR=<>GJL@=>MDDAFHMLG>L@=MFAL1@=J=DA=>
N9DN=9KK=E:DQAKK@AHH=<DGGK=9F<EMKL:=EGMFL
=< <AJ=;LDQ LG L@= @=9L=J GMLD=L +G N9DN= K@9DD :=
AFKL9DD=<:=LO==FL@=@=9L=J9F<L@=J=DA=>N9DN=1@=
J=DA=> N9DN= K@9DD := EGMFL=< OAL@ ALK KHAF<D= N=JLA;9D
K==#A?9F<GFH9?=/=DA=>N9DN=<AK;@9J?=
HAHAF? K@9DD HJGNA<= FG D=KK L@9F L@= ;JGKK K=;LAGF9D
9J=9G>L@=J=DA=>N9DN=GMLD=L9F<EMKL:=JGML=<LG9
K9>=HGAFLG><AK;@9J?=&FKL9DD9LAGFEMKL;GEHDQOAL@
9DDF9LAGF9DKL9L=9F<DG;9D;G<=K
Temperature & ressure Gauge
1@=L=EH=J9LMJ=9F<HJ=KKMJ=?9M?=AKK@AHH=<DGGK=
>GJ >A=D< AFKL9DD9LAGF 9F< EMKL := AFKL9DD=< OAL@AF 
AF;@=K G> L@= :GAD=J GMLD=L A> HGKKA:D= AF 9F =9KADQ
J=9<9:D=DG;9LAGF&FKL9DD9LAGFEMKL;GEHDQOAL@0*"
0=;LAGF&39KO=DD9K9DD9HHDA;9:D=F9LAGF9DKL9L=9F<
DG;9D;G<=K
Hydrostatic Test
2FDAC=E9FQLQH=KG>@=9L=JKL@AK@=9L=J<G=KFGLJ=
IMAJ= @Q<JGKL9LA; L=KLAF? HJAGJ LG :=AF? HD9;=< AF
GH=J9LAGF 1@= @=9L =P;@9F?=J AK0*" ;=JLA>A=< >GJ
HKAE9PAEMEOGJCAF?HJ=KKMJ=%GO=N=J/9QH9C
<G=KJ=;GEE=F<@Q<JGKL9LA;L=KLAF?G>L@=HAHAF?;GF

F=;LAGFKLGL@=@=9L=J9F<L@=J=KLG>L@=KQKL=EHJAGJ
LGGH=J9LAGF1@AKAKH9JLA;MD9JDQLJM=>GJ@Q<JGFA;KQK
L=EK MKAF? =PH=FKAN= ?DQ;GD:9K=< 9FLA>J==R=
/9QH9C J=;GEE=F<K ;GF<M;LAF? L@= @Q<JGKL9LA; L=KL
:=>GJ=;GFF=;LAF??9KHAHAF?GJ=D=;LJA;9DKMHHDQ
)=9CKEMKL:=J=H9AJ=<9LGF;=LGHJ=N=FL<9E9?=LG
L@= @=9L=J +"3"/ MK= H=LJGD=ME:9K=< KLGHD=9C
;GEHGMF<K
1GH=J>GJE@Q<JGKL9LA;L=KL
 GFF=;L>ADDO9L=J KMHHDQ4AL@:D==< N9DN=GH=F
>ADD@=9L=JOAL@O9L=J4@=FO9L=J>DGOK>JGE:D==<
N9DN=K@MLG>>O9L=J DGK=:D==<N9DN= 9J=>MDDQ
>ADDL@=J=KLG>L@=KQKL=EE9CAF?KMJ=LG=DAEAF9L=
9FQ=FLJ9HH=<9AJ:QMKAF?@A?@HGAFLN=FLK DGK=
>==<N9DN=1=KL9LKL9F<9J<GH=J9LAF?HJ=KKMJ=>GJ
9LD=9KL@GMJK
 *9C= KMJ= ;GFKL9FL ?9M?= HJ=KKMJ= @9K :==F
E9AFL9AF=<L@JGM?@GMLL=KL
 @=;C>GJD=9CK/=H9AJA>>GMF<
Hydronic Heating
ump Selection
&FGJ<=JLG=FKMJ=HJGH=JH=J>GJE9F;=G>QGMJ@=9L=J
KQKL=EQGMEMKLAFKL9DD9;GJJ=;LDQKAR=<HMEH/9Q
H9CJ=;GEE=F<K<=KA?FAF?>GJ9X1OAL@AFL@=J9F?=
G>S#LGS#S LGS 0==19:D=$>GJ9;;=HL
9:D=>DGOJ9L=K>GJ=9;@EG<=DX1AKL@=L=EH=J9LMJ=
<A>>=J=F;=:=LO==FL@=AFD=L9F<GMLD=LO9L=JO@=FL@=
@=9L=JAK>AJAF?9L>MDDJ9L=
Feedwater Regulator
/9QH9CJ=;GEE=F<KL@9L9>==<O9L=JJ=?MD9LGJ:=AF
KL9DD=< 9F< K=L 9L  HKA EAFAEME HJ=KKMJ= 9L L@=
@A?@=KL HGAFL G> L@= KQKL=E &FKL9DD 9 ;@=;C N9DN= GJ
:9;C >DGO <=NA;= MHKLJ=9E G> L@= J=?MD9LGJ OAL@ 9
E9FM9DK@MLG>>N9DN=9KJ=IMAJ=<:QDG;9D;G<=K
iping
DD @A?@ HGAFLK K@GMD< := N=FL=<  @=9L=J AFKL9DD=<
9:GN=J9<A9LAGFD=N=DEMKL:=HJGNA<=<OAL@9DGOO9
L=J ;MLG>> <=NA;= K9D=K GJ<=J GHLAGF # 1@AK
@=9L=J O@=F MK=< AF ;GFF=;LAGF OAL@ 9 J=>JA?=J9LAGF
KQKL=EEMKL:=AFKL9DD=<KGL@9LL@=;@ADD=<E=<AMEAK
HAH=< AF H9J9DD=D OAL@ L@= @=9L=J OAL@ 9HHJGHJA9L=
N9DN=KLGHJ=N=FLL@=;@ADD=<E=<AME>JGE=FL=JAF?L@=
@=9L=J
WARNING: -J=KKMJ=J=DA=>N9DN=<AK;@9J?=HAHAF?
EMKL:=HAH=<F=9JL@=>DGGJ9F<;DGK=LG9<J9AFLG
=DAEAF9L=L@=HGL=FLA9DG>K=N=J=:MJFK!GFGLHAH=
LG 9FQ 9J=9 O@=J= >J==RAF? ;GMD< G;;MJ /=>=J LG
DG;9D;G<=K
CAUTION: 1@AK :GAD=J J=IMAJ=K >GJ;=< O9L=J
;AJ;MD9LAGFO@=FL@= :MJF=JAKGH=J9LAF? 0==19:D=
$9F<19:D=%>GJEAFAEME9F<E9PAEME>DGOJ9L=K
9F< O9L=J HMEH K=D=;LAGF 1@= HMEH EMKL :=
AFL=JDG;C=< OAL@ L@= :GAD=J LG HJ=N=FL @=9L=J
GH=J9LAGFOAL@GMLO9L=J;AJ;MD9LAGF
NOTE: *AFAEMEHAH=KAR=>GJAFGML;GFF=;LAGFKAK
\+-1>GJEG<=D9F< \+-1>GJEG<=DK
9F<3=JA>QHJGH=J>DGOJ9L=K
9F<X19KAFKLJM;L=<AFL@AKE9FM9D
WARNING: 1@= HJ=KKMJ= J=DA=> N9DN= EMKL :=
AFKL9DD=< 9L L@= GMLD=L G> L@= :GAD=J +G N9DN= AK
H=JEALL=<LG:=AFKL9DD=<:=LO==FL@=:GAD=J9F<L@=
J=DA=>N9DN=
NOTE: 1@= ;GFLAFMGMK AFD=L O9L=J L=EH=J9LMJ=
EMKL:=FGD=KKL@9FS#

1@=HAHAF?KQKL=EG>9@GLO9L=J@=9L=J;GFF=;L=<LG
@=9LAF?;GADKDG;9L=<AF9AJ @9F<DAF?MFALKO@=J= L@=Q
E9Q:==PHGK=<LG;AJ;MD9LAF?J=>JA?=J9L=<9AJEMKL:=
=IMAHH=< OAL@ >DGO ;GFLJGD N9DN=K GJ GL@=J 9MLGE9LA;
E=9FK LG HJ=N=FL ?J9NALQ ;AJ;MD9LAGF G> L@= @=9L=J
O9L=J<MJAF?L@=;GGDAF?;Q;D=&LAK@A?@DQJ=;GEE=F<
=<L@9LL@=HAHAF?:=AFKMD9L=<
Air-Separation/Expansion Tank
DD@=9L=JKK@GMD<:==IMAHH=< OAL@9HJGH=JDQ KAR=<
=PH9FKAGF L9FC 9F< 9AJ K=H9J9LGJ >ALLAF? 9K K@GOF AF
#A?9:GN=
Three-Way Valves
1@J==O9Q N9DN=K AFL=F<=< LG J=?MD9L= KQKL=E O9L=J
L=EH=J9LMJ=K:QJ=<M;AF?>DGOAFL@=:GAD=JK@GMD<FGL
:=MK=</9QH9C@=9L=JK9J=@A?@J=;GN=JQDGOE9KK
@=9L=JKO@A;@9J=FGLKM:B=;LLGL@=JE9DK@G;C
Applications & Modes
1@=3"/0&  GFLJGDKQKL=EAK<=KA?F=<>GJ9OA<=
J9F?= G> 9HHDA;9LAGFK  1@= AFKL9DD=J<=KA?F =F?AF==J
K@GMD<J=>=JLGL@=>GDDGOAF?*G<=KLG<=L=JEAF=O@A;@
:=KL>ALKL@= AFL=F<=<9HHDA;9LAGF9F< >MF;LAGF9DALQ>GJ
L@=MFAL:=AF?AFKL9DD=<

Table G: Heater Rates of Flow and Pressure Drops
+GL=K9KAK>GJEAFAEME>DGOAKX19KAK>GJE9PAEME>DGOAK?HE
Model
No.
20°F ∆T 30°F ∆T 35°F ∆T Min. Flow Max. Flow
gpm ∆P (ft) gpm ∆P (ft) gpm ∆P (ft) gpm ∆P (ft) ∆T gpm ∆P (ft) ∆T
            
            
            
            
            
Fig. 6: Air-Separation/Expansion Tank
1QH=%EG<=DKG>5#QJ=@9N=L@J==EG<=K9N9AD9:D=
LGL@=E LG9<<J=KK L@= N9JAGMK9HHDA;9LAGFK L@=MFALK
;9F := 9HHDA=< LG 1QH= 4% MFALK OADD GFDQ @9N= L@=
4% ;GF>A?MJ9LAGF 9N9AD9:D= LG L@=E >GJ MK= OAL@
HGL9:D=O9L=J9HHDA;9LAGFKO@=F<AJ=;LDQ;GFF=;L=<LG
9@GLO9L=JKLGJ9?=L9FC
Mode 1 (Type H Units Only)
1@AK EG<= K=D=;LAGF AK >GJ @Q<JGFA; @=9LAF? KQKL=EK
OAL@KAF?D=GJEMDLAHD=:GAD=JK*9PAEME:GAD=JKAF
HJAE9JQK=;GF<9JQHAHAF?;GF>A?MJ9LAGFOAL@GJOAL@GML
,ML<GGJAJ /=K=L 0  1@= KQKL=E L=EH=J9LMJ= AK
;GFLJGDD=< :Q L@= 0QKL=E K=FKGJ 0 1@= GAD=J
-MEH-JMFK<MJAF?9FQ;9DD>GJ@=9L1@=0QKL=E
-MEH-JMFK O@=F=N=J L@= KQKL=EAK=F9:D=< >GJ
@=9LAF?9F<L@=GML<GGJ9AJL=EH=J9LMJ=AKDGO=JL@9F
L@= O9JE O=9L@=J K@ML <GOF 440! L=EH=J9LMJ=
K=LLAF?A>MLADAR=<1@=GAD=J-MEH9F<0QKL=E-MEH
9J= <=D9Q=< [G>>\ 9K MK=J <=>AF=< AF L@= AD UST
E=FM
Mode 2 (Type H Units Only)
1@AK EG<= K=D=;LAGF AK >GJ @Q<JGFA; @=9LAF? KQKL=EK
OAL@KAF?D=GJEMDLAHD=:GAD=JK*9PAEME:GAD=JKAF
HJAE9JQK=;GF<9JQHAHAF?;GF>A?MJ9LAGFOAL@GJOAL@GML
,ML<GGJAJ/=K=L0OAL@AF<AJ=;L!%4GFL@=KQK
L=E DGGH OAL@ GJ OAL@GML HJAGJALQ 1@= KQKL=E
L=EH=J9LMJ=AK;GFLJGDD=<:QL@=0QKL=EK=FKGJ0
1@=&F<AJ=;L!%4K=FKGJ0<=L=JEAF=KL@=AF<AJ=;L
;9DDL9FCK=LHGAFL1@=KQKL=EL=EH=J9LMJ=AK:GGKL=<
LG 19J?=L *9P O@=F MKAF? L@= &F<AJ=;L !%4 K=FKGJ
0<MJAF?9FAF<AJ=;L;9DD>GJ@=9L-JAGJALQEG<=LG?
NOTE: *,!";9F9DKG:=MK=<>GJHJG;=KK@=9L
AF?9HHDA;9LAGFKAF;GFBMF;LAGFOAL@9:M>>=JKLGJ9?=
L9FCO@=FGH=J9LAF?L=EH=J9LMJ=K9:GN=°#9J=
J=IMAJ=< 9J=EMKL:=?AN=FLG=FKMJAF?O9L=J@9J<
F=KKAKD=KKL@9F?J9AFKH=J?9DDGFLG=FKMJ=K;9D=
>J==GH=J9LAGF


Fig. 7: MODE 1 - Applications with Primary/Secondary Piping
Fig. 8: MODE 2 - Single Boiler with Indirect
on System Loop
Key:
S1: Boiler Outlet Sensor
S2: Boiler Inlet Sensor
S3: System Sensor
S4: Outdoor Air Sensor
S5: Indirect Tank Sensor
S6: Supply Sensor to Indirect
P1: Boiler Pump
P2: System Pump
P3: Indirect DHW Pump
?D=KG>>L@=0QKL=E-MEH-O@=F9FAF<AJ=;L;9DD>GJ
@=9LAKHJ=K=FL1@=GAD=J-MEH-JMFK<MJAF?9FQ
;9DD>GJ@=9L1@=&F<AJ=;L!%4-MEH-JMFK<MJAF?
9FAF<AJ=;L;9DD>GJ@=9LOAL@FG[G>>\<=D9Q1@=GAD=J
-MEH-9F<0QKL=E-MEH-<=D9Q[G>>\9KMK=J
<=>AF=<AFL@=AD UST E=FM1@=0QKL=E-MEH-
JMFKO@=F=N=JL@=KQKL=EAK=F9:D=<>GJ@=9LAF?9F<
L@=GML<GGJ9AJL=EH=J9LMJ=AKDGO=JL@9FL@=440!
L=EH=J9LMJ=K=LLAF?A>MLADAR=<MFD=KK9FAF<AJ=;L;9DD
>GJ@=9LAKHJ=K=FLOAL@HJAGJALQ
Mode 3 (Type H Units Only)
1@AK EG<= K=D=;LAGF AK >GJ @Q<JGFA; @=9LAF? KQKL=EK
OAL@KAF?D=GJEMDLAHD=:GAD=JK*9PAEME:GAD=JKAF
HJAE9JQK=;GF<9JQHAHAF?;GF>A?MJ9LAGFOAL@GJOAL@GML
,ML<GGJAJ/=K=L0OAL@AF<AJ=;L!%4GFL@=:GAD
=J DGGH OAL@ HJAGJALQ 1@= KQKL=E L=EH=J9LMJ= AK
;GFLJGDD=< :Q L@= 0MHHDQ K=FKGJ 0 O@=F=N=J L@=
AF<AJ=;L;9DD>GJ@=9LAKnot active1@=!%40MHHDQ
K=FKGJ0<=L=JEAF=KL@=AF<AJ=;L;9DDL9FCK=LHGAFL
!MJAF?9FAF<AJ=;L;9DD>GJ@=9LL@=:GAD=J>AJAF?J9L=AK

Domestic Hot Water
4@=F<=KA?FAF?L@=O9L=JHAHAF?KQKL=E>GJ<GE=KLA;
@GLO9L=J9HHDA;9LAGFKO9L=J@9J<F=KKK@GMD<:=;GF
KA<=J=<19:D=%AF<A;9L=KL@=KM??=KL=<>DGOJ9L=K>GJ
KG>L9F<E=<AMEO9L=J%9J<O9L=JEMKL:=KG>L=F=<
>GJ <AJ=;L @=9LAF? OAL@ L@= 5#QJ= 49L=J @9J<F=KK AK
=PHJ=KK=<AF?J9AFKH=J?9DDGF
Fig. 9: MODE 3 - Single Boiler with Indirect
on Boiler Loop
NOTE: &>DG;9D;G<=KJ=IMAJ=9N9;MMEJ=DA=>N9DN=
9;IMAJ= GF= DG;9DDQ 9F< AFKL9DD H=J N9DN=
E9FM>9;LMJ=J]KAFKLJM;LAGFK
Fig. 10: WH Units - Single Water Heater with Tank
H Units - Single Boiler with Process Tank

<=L=JEAF=< :Q L@= O9L=J L=EH=J9LMJ= 9L L@= &F<AJ=;L
0MHHDQK=FKGJ09F<L@=19J?=L*9PK=LLAF?O@=F
MKAF?L@=&F<AJ=;L!%4K=FKGJ01@=GAD=J-MEH
- JMFK <MJAF? 9DD @=9L ;9DDK J=?9J<D=KK G> HJAGJALQ
1@=&F<AJ=;L!%4-MEH-JMFK<MJAF?9FAF<AJ=;L
;9DD>GJ@=9LOAL@FG[G>>\<=D9Q1@=GAD=J-MEH-
9F<0QKL=E-MEH-<=D9Q[G>>\9KMK=J<=>AF=<AF
L@= AD UST E=FM 1@= KQKL=E HMEH - JMFK
O@=F=N=J L@= KQKL=E AK =F9:D=< >GJ @=9LAF? 9F< L@=
GML<GGJ9AJL=EH=J9LMJ=AKDGO=JL@9FL@=440!L=E
H=J9LMJ=K=LLAF? A>MLADAR=<MFD=KK 9FAF<AJ=;L ;9DD>GJ
@=9LAKHJ=K=FL
WH – Direct DHW Configuration
4@=FL@=MFALAKGJ<=J=<9K9[4%\;GF>A?MJ9LAGFL@=
GFDQ9HHDA;9LAGF9N9AD9:D=LGALAK<AJ=;L!%4OAL@KAF
?D=GJEMDLAHD=@=9L=JK*9PAEME@=9L=JK1@=L9FC
L=EH=J9LMJ=AK;GFLJGDD=<:QL@=0QKL=EK=FKGJ0
1@= GAD=J -MEH - JMFK <MJAF? 9FQ ;9DD >GJ @=9L
1@=0QKL=E-MEH-GMLHMLAK9;LAN=O@=F=N=JL@=
KQKL=E AK =F9:D=< 1@= GAD=J -MEH AK <=D9Q=< [G>>\
9>L=JL@=19FC19J?=LL=EH=J9LMJ=AK9;@A=N=<9F<9K
MK=J<=>AF=<AFL@=AD UST E=FM
NOTE: 19FCIM9KL9L;9F:=MK=<AFDA=MG>L@=
&F<AJ=;L!%40=FKGJ00==L@=3=JK9& E9FM
9D>GJ9<<ALAGF9D<=L9ADK
NOTE: 4% MFALK OADD GH=J9L= LG 9 E9PAEME L9FC
L=EH=J9LMJ= G> # #GJ L=EH=J9LMJ=K J=IMAJ=<
9:GN=#9F[%\EG<=D:GAD=JEMKL:=MK=<9F<
?J=9L;9J=EMKL:=?AN=FLG=FKMJAF?O9L=J@9J<F=KK
AKD=KKL@9F?J9AFKH=J?9DDGFLG=FKMJ=K;9D=>J==
GH=J9LAGF*,!"K@GMD<:=MK=<9F<;GF>A?MJ=<
>GJ K=LHGAFL GH=J9LAGF >GJ HJG;=KK @=9LAF? 9HHDA;9
LAGFK

otable Water and Space Heating
 DDHAHAF?E9L=JA9DK9F<;GEHGF=FLK;GFF=;L=<LG
L@=O9L=J@=9L=J>GJL@=KH9;=@=9LAF?9HHDA;9LAGF
K@9DD:=KMAL9:D=>GJMK=OAL@HGL9:D=O9L=J
 1GPA;;@=EA;9DKKM;@9KMK=<>GJ:GAD=JLJ=9LE=FL
K@9DDFGL:=AFLJG<M;=<AFLGL@=HGL9:D=O9L=JMK=<
>GJKH9;=@=9LAF?
 &>L@=@=9L=JOADD:=MK=<LGKMHHDQHGL9:D=O9L=J
ALK@9DDFGL:=;GFF=;L=<LG9FQ@=9LAF?KQKL=EGJ
;GEHGF=FLK HJ=NAGMKDQ MK=< OAL@ 9 FGFHGL9:D=
O9L=J@=9LAF?9HHDA9F;=
 4@=FL@=KQKL=EJ=IMAJ=KO9L=J>GJKH9;=@=9LAF?
9L L=EH=J9LMJ=K @A?@=J L@9F S# S  9
E=9FKKM;@9K9EAPAF?N9DN=K@9DD:=AFKL9DD=<LG
L=EH=JL@=O9L=JAFGJ<=JLGJ=<M;=K;9D<@9R9J<
HGL=FLA9D
CAUTION: 4@=F L@AK @=9L=J AK MK=< >GJ :GL@
HGL9:D= O9L=J 9F< KH9;= @=9LAF? G:K=JN= L@=
>GDDGOAF?LG=FKMJ=HJGH=JGH=J9LAGF
X11=EH=J9LMJ=JAK=S#
X--J=KKMJ=<JGHL@JGM?@@=9L=P;@9F?=J>L
0%)0QKL=E@=9<DGKK>L:9K=<GF@=9L=J9F<L9FCHD9;=<FGEGJ=L@9F>L9H9JL9F<=IMAN9D=FLD=F?L@G>>LG>LM:AF?9F<>ALLAF?K
?HE$9DDGFKH=JEAFML=>DGOJ9L=
*10*AFAEMELM:AF?KAR=
CAUTION: #GJK;9D=>J==GH=J9LAGFOAL@*=<AMEO9L=JY?J9AFKH=J?9DDGFG>LGL9D@9J<F=KKL@=GH=J9LAF?;GFLJGDEMKL+,1:=K=L
@A?@=JL@9FS##GJ@A?@=JL@9FS#GH=J9LAGFGJ%9J<O9L=J?J9AFKH=J?9DDGFG>LGL9D@9J<F=KK9O9L=JKG>L=F=JLJ=9LE=FLKQK
L=EEMKL:=MLADAR=<
Table H: Domestic Water Heater Flow Rate Requirements
Model No. 0–15 grains per gallon
∆T gpm ∆P MTS SHL
     
     
     
     
     
WARNING: -DME:AF?:=LO==FL@=@=9L=J9F<L9FC
AF =P;=KK G>  =IMAN9D=FL >==L OADD J=IMAJ= ;MKLGE
HMEHK=D=;LAGF!9E9?=<M=LGDGO>DGOE9QG;;MJ
9F<AK FGL9 O9JJ9FL9:D=>9ADMJ=  GFKMDLOAL@ QGMJ
DG;9D/9QH9CJ=HJ=K=FL9LAN=

NOTE: 1@==I>==LG>LM:AF?LQHA;9DDQJ=HJ=K=FLK
DAF=9J>==LG>LM:AF?9F<=I>==LG>>ALLAF?K
Gas Supply
$9KHAHAF?must @9N= 9 K=<AE=FLLJ9H9@=9< G> L@=
@=9L=J ?9K ;GFLJGDK and 9 E9FM9D K@MLG>> N9DN= DG
;9L=< GMLKA<= L@= @=9L=J B9;C=L &L AK J=;GEE=F<=<
L@9L9MFAGF:=AFKL9DD=<AFL@=?9KKMHHDQHAHAF?9<B9
;=FLLG L@= @=9L=J>GJ K=JNA;AF?/=>=J LG19:D=' >GJ
E9PAEMEHAH=D=F?L@K
Gas Supply Connection
1@=@=9L=JEMKL:=AKGD9L=<>JGEL@=?9KKMHHDQHAH
AF? KQKL=E :Q ;DGKAF? L@= MHKLJ=9E E9FM9D K@MLG>>
N9DN= <MJAF? 9FQ HJ=KKMJ= L=KLAF? G> L@= ?9K KMHHDQ
HAHAF? KQKL=E 9L L=KL HJ=KKMJ=K =IM9D LG GJ ?J=9L=J
L@9F  HKA  C-9 /=DA=N= L=KL HJ=KKMJ= AF L@=
?9KKMHHDQ DAF=HJAGJLG J=;GFF=;LAF?L@= @=9L=J9F<
ALKE9FM9DK@MLG>>N9DN=LGL@=?9KKMHHDQDAF=FAIL-
URE TO FOLLOW THIS PROCEDURE MAY
DAMAGE THE GAS VALVE ,N=JHJ=KKMJAR=< ?9K
N9DN=K9J=FGL;GN=J=<:QO9JJ9FLQ1@=@=9L=J9F<ALK
?9K ;GFF=;LAGFK K@9DD := D=9CL=KL=< :=>GJ= HD9;AF?
L@=9HHDA9F;=AF GH=J9LAGF 2K= KG9HQO9L=J>GJ D=9C
L=KL!,+,1MK=9FGH=F>D9E=
DANGER: *9C=KMJ=L@=?9KGFO@A;@L@=@=9L=J
OADDGH=J9L=AKL@=K9E=LQH=9KKH=;A>A=<GFL@=J9L
AF?HD9L=
CAUTION: 1@=@=9L=JEMKL:=<AK;GFF=;L=<>JGE
L@=?9KKMHHDQ<MJAF?9FQHJ=KKMJ=L=KLAF?G>L@=?9K
KMHHDQKQKL=E9LL=KLHJ=KKMJ=KAF=P;=KKG>HKA
C-9

CAUTION: #GJ HJGH=J GH=J9LAGF FG EGJ= L@9F 9
<JGHAF?9KKMHHDQHJ=KKMJ=>JGEFGDG9<LG>MDD
DG9< ;GF<ALAGFK AK 9;;=HL9:D= 2F<=J FG
;AJ;MEKL9F;=K K@GMD< L@= HJ=KKMJ= := GMLKA<= L@=
DAKL=<GH=J9LAGF9DJ9F?=
Gas Supply ressure
 EAFAEME G>  AF 4  MHKLJ=9E ?9K HJ=KKMJ=
MF<=J >MDD DG9< 9F< 9 E9PAEME ?9K KMHHDQ HJ=KKMJ=
K=LHGAFLG>AF4 MF<=JDG9<9F<FGDG9<;GF<A
LAGFK >GJ F9LMJ9D ?9K   EAFAEME G>  AF 4
MHKLJ=9E?9KHJ=KKMJ=MF<=J>MDDDG9<9F<9E9PAEME
?9KKMHHDQHJ=KKMJ=K=LHGAFLG>AF4 AKJ=IMAJ=<
>GJHJGH9F=?9K1@=?9KHJ=KKMJ=J=?MD9LGJKKMH
HDA=< GF L@= @=9L=J AK >GJ DGOHJ=KKMJ= K=JNA;=  &>
MHKLJ=9E HJ=KKMJ= =P;==<K  HKA 9L 9FQ LAE= 9F
AFL=JE=<A9L= ?9K HJ=KKMJ= J=?MD9LGJ G> L@= DG;CMH
LQH= EMKL := AFKL9DD=<  1@AK J=?MD9LGJ K@GMD< :=
HD9;=<9EAFAEME<AKL9F;=G>LAE=KL@=HAH=<A9E
=L=JMHKLJ=9EG>L@=@=9L=J?9K;GFLJGDK
4@=F;GFF=;LAF?9<<ALAGF9D?9KMLADAR9LAGF=IMAHE=FL
LGL@=?9KHAHAF?KQKL=EL@==PAKLAF?HAHAF?EMKL:=
;@=;C=< LG <=L=JEAF= A> AL @9K 9<=IM9L= ;9H9;ALQ >GJ
L@=;GE:AF=<DG9<1@=?9KN9DN=HJ=KKMJ=J=?MD9LGJ
GFL@=@=9L=JAKFGEAF9DDQHJ=K=L9KFGL=<AF19:D=&
!MJAF?FGJE9DGH=J9LAGF;9J:GF<AGPA<=K@GMD<:=
LG9L>MDD>AJ=>GJF9LMJ9D?9K9F<:=LO==F9F<
>GJ HJGH9F=?9K 9J:GF EGFGPA<=K@GMD< :=
^HHE
Fig. 11: Gas Supply Connection
CAUTION: !GFGLMK=1=>DGFL9H=GF?9KDAF=HAH=
L@J=9<HAH= ;GEHGMF<J9L=<>GJMK= OAL@F9LMJ9D
9F< HJGH9F= ?9K=K AK J=;GEE=F<=< HHDQ
KH9JAF?DQ GFDQ GF E9D= HAH= =F<K D=9NAF? L@= LOG
=F<L@J=9<K:9J=
CAUTION: 0MHHGJL ?9K KMHHDQ HAHAF? OAL@
@9F?=JKFGL:QL@=@=9L=JGJALK9;;=KKGJA=K*9C=
KMJ= L@= ?9K HAHAF? AK HJGL=;L=< >JGE H@QKA;9D
<9E9?=9F<>J==RAF?O@=J=J=IMAJ=<
+,1"*9FA>GD<HJ=KKMJ=KK@GMD<:=VAF4 
Table I: Manifold Gas Pressure Settings
Model
No.
Manifold Pressure (in. WC)
Natural Gas Propane Gas
High Low High Low
    
    
    
    
    


Electrical ower Connections
&FKL9DD9LAGFKEMKL>GDDGOL@=K=;G<=K
T +9LAGF9D "D=;LJA;9D G<= 9F< 9FQ GL@=J F9LAGF9D
KL9L=HJGNAF;A9DGJDG;9D;G<=KGJJ=?MD9LAGFK@9N
AF?BMJAK<A;LAGF
T 09>=LQOAJAF?EMKL:=+"  D9KK
T %=9L=JEMKL:==D=;LJA;9DDQ?JGMF<=<9KJ=IMAJ=<
:QL@=+" 
T &F 9F9<9 0  " -9JL
1@=5#QJ=Y@=9L=JK9J=OAJ=<>GJ3
KAF?D=H@9K=%RHGO=J GFKMDLL@=OAJAF?<A9?J9E
K@AHH=< OAL@ L@= @=9L=J =>GJ= KL9JLAF? L@= @=9L=J
;@=;C LG =FKMJ= HJGH=J NGDL9?= LG L@= @=9L=J 9F<
HMEHKD9J?=J ;AJ;MAL:J=9C=JE9Q:=F==<=<>GJ
HMEHKD9J?=JL@9F@H
1@= :GAD=J HMEH MH LG  @H 9F< L@= AF<AJ=;L !%4
HMEHMHLGb@H?=LL@=AJHGO=JKMHHDQ<AJ=;LDQ>JGE
L@= @=9L=J HGO=J KMHHDQ ;GFF=;LAGFK 9J= DG;9L=< AF
L@=J=9JOAJAF? :GP1@= KQKL=EHMEHJ=D9QAKJ9L=<
+9LMJ9D$9KY12>LKH=;A>A;?J9NALQ9LAF4 HJ=KKMJ=<JGH
-JGH9F=$9KY12>LKH=;A>A;?J9NALQ9LAF4 HJ=KKMJ=<JGH
Table : Maximum Equivalent Pipe Length
Model
No.
3/4” NPT 1” NPT 1-1/4” NPT 1-1/2” NPT 2” NPT
N P N P N P N P N P
    
      
      
      
      
>GJHADGL<MLQGFDQ5#QJ=@=9L=JKE9QHGO=JMHLG
HMEHK<AJ=;LDQ&FKL9DD9;AJ;MAL:J=9C=JKAR=<KM>>A;A=FL
DQ >GJ :GL@ L@= @=9L=J 9F< L@= HMEHK F AF<AJ=;L
!%4HMEHD9J?=JL@9Fb@HGJEMKLMK=9K=H9
J9L= HGO=J KMHHDQ 9F< JMF L@= HGO=J L@JGM?@ 9F
=PL=JF9D>A=D<KMHHDA=<HMEH;GFL9;LGJ2K=9HHJGHJA
9L=DQKAR=<OAJ=9K<=>AF=<:Q+"  09F<GJDG;9D
;G<=KDDHJAE9JQOAJAF?K@GMD<:=G>EAFAEME
J9LAF?  1@= AF<AJ=;L 9F< KQKL=E HMEHK GMLHMLK 9J=
>MK=HJGL=;L=<
&>9FQG>L@=GJA?AF9DOAJ=9KKMHHDA=<OAL@L@=@=9L=J
EMKL:=J=HD9;=<ALEMKL:=J=HD9;=<OAL@S OAJ=
GJALK=IMAN9D=FL
DD 3  >A=D< OAJAF? ;GFF=;LAGFK LG L@= 5#QJ=
@=9L=J9J=E9<=AFKA<=L@=J=9JOAJAF?:GP9KK@GOF
AF #A?  )GO NGDL9?= OAJAF? AK ;GFF=;L=< LG L@=
3"/0;GFLJGD:G9J<9F<L@=-D9L>GJE&?FALAGF*G<MD=
-&*9LL@=>JGFLG>L@=MFAL0=FKGJK=F9:D=<AK9:D=
;GFL9;LKGHLAGF9D3! ;GFLJGDOAJAF?9F<;9K
;9<=;GFF=;LAGFK9J=OAJ=<AFLGL@=3"/09F<-&*
>A=D<OAJAF?HDM?K0==L@=OAJAF?<A9?J9EGFH9?=

Heater
Model No.
STANDARD PUMP MODELS
H WH
-MEH*G<=D %- EHK -MEH*G<=D %- EHK
      
      
      
      
      
Table K: Standard Pump Sizes and Amperages

@=;CL@=HGO=JKGMJ;=
 3 *AFAEME3 *5
3 *AFAEME3 *5
 3 *9PAEME
Check the ower Source
WARNING: 2KAF? 9 EMDLAE=L=J ;@=;C L@=
>GDDGOAF?NGDL9?=K9LL@=;AJ;MAL:J=9C=JH9F=DHJAGJLG
;GFF=;LAF? 9FQ =IMAHE=FL *9C= KMJ= HJGH=J
HGD9JALQ AK >GDDGO=< 9F< @GMK= ?JGMF< AK HJGN=F
0==#A?
Fig. 12: Wiring Connections
Fig. 13: Multi-meter
NOTE: *AFAEME  4$ S  KLJ9F<=< OAJ=
EMKL:=MK=<>GJ9DDDGONGDL9?=D=KKL@9FNGDLK
=PL=JF9D ;GFF=;LAGFK LG L@= MFAL 0GDA< ;GF<M;LGJK
K@GMD< FGL := MK=< :=;9MK= L@=Q ;9F ;9MK=
=P;=KKAN= L=FKAGF GF ;GFL9;L HGAFLK &FKL9DD ;GF<MAL
9K 9HHJGHJA9L=DD @A?@ NGDL9?= OAJ=K EMKL := L@=
K9E=KAR=S KLJ9F<=<OAJ=9KL@=GF=KGFL@=
MFALGJD9J?=J
Making the Electrical Connections
/=>=JLG#A?Y
 3=JA>Q L@9L ;AJ;MAL :J=9C=J AK HJGH=JDQ KAR=< :Q
J=>=JJAF?LG@=9L=JJ9LAF?HD9L=<=<A;9L=<;AJ;MAL
:J=9C=J K@GMD< := HJGNA<=< 9F< KAR=< >GJ L@=
@=9L=J9F<9DDHMEHKHGO=J=<L@JGM?@L@=@=9L=J
 1MJFG>>9DDHGO=JLGL@=@=9L=J3=JA>QL@9LHGO=J
@9K:==FLMJF=<G>>:QL=KLAF?OAL@ 9EMDLAE=L=J
HJAGJLGOGJCAF?OAL@9FQ=D=;LJA;9D;GFF=;LAGFKGJ
;GEHGF=FLK9LL@=':GPAFKA<=L@=@=9L=J
 ,:K=JN= HJGH=J OAJ= ;GDGJK O@AD= E9CAF? =D=;LJA
;9D ;GFF=;LAGFK *9FQ =D=;LJGFA; ;GFLJGDK 9J=
HGD9JALQ K=FKALAN= GEHGF=FLK <9E9?=< :Q AE
HJGH=J =D=;LJA;9D AFKL9DD9LAGF 9J= FGL ;GN=J=< :Q
O9JJ9FLQ
 -JGNA<= GN=JDG9< HJGL=;LAGF 9F< 9 <AK;GFF=;L
E=9FK>GJ=IMAHE=FLK=JNA;=9:ADALQ9KJ=IMAJ=<:Q
DG;9D9F<KL9L=;G<=
 &FKL9DD @=9L=J ;GFLJGDK L@=JEGKL9LK GJ :MAD<AF?
E9F9?=E=FL KQKL=EK AF 9;;GJ<9F;= OAL@ L@=
9HHDA;9:D=E9FM>9;LMJ=JK]AFKLJM;LAGFK
 GF<MALK@GMD<FGL:=MK=<9KL@==9JL@?JGMF<
NOTE:  ?JGMF<AF? =D=;LJG<= ;GF<M;LGJ K@9DD :=
MK=< LG ;GFF=;L L@= =IMAHE=FL ?JGMF<AF?
;GF<M;LGJK L@= =IMAHE=FL =F;DGKMJ=K 9F< L@=
?JGMF<=< K=JNA;= ;GF<M;LGJ LG L@= ?JGMF<AF?
=D=;LJG<=
NOTE: MJJ=FL<J9OFGL=<GFJ9LAF?HD9L=<G=KFGL
AF;DM<=HMEH;MJJ=FL
