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
S
INGLE
STAGE
TANKSTAT
STAGE 1
CONNECTION
ATTACH STAGE 1 CONNECTIONS
ON HEATER TO THE SINGLE STAGE
TANKSTAT AS SHOWN IN THE DIAGRAM ABOVE.
Fig. 23: Single-Stage Tankstat
DCHJAII=:L>G>C<9>6<G6BH=>EE:9L>I=I=:=:6I:G>C
I=:>CHIGJ8I>DCE68@:IDG6II=::C9D;I=>HH:8I>DC/=:
HI6<:H:A:8IDGI:GB>C6AH6G:;DGI=:G:BDI:I6C@8DC
IGDAI=GDJ<=I=:=:6I:GYH1IG6CH;DGB:GDO NOT
attach any voltage to the stage-selector terminals.
:;DG:HI6GI>C<I=:=:6I:G8=:8@ID:CHJG:EGDE:GKDAI
6<:IDI=:=:6I:G6C9EJBE
Venting
General
Flue Exhaust Tee
CDEI>DC6A!AJ: M=6JHI/::>H6K6>A67A:ID;68>A>I6I:
=DG>ODCI6AK:CI>C<CNG:;:G:C8:ID=DG>ODCI6AK:CI>C<
I=6I:M>IHI=:768@D;I=:=:6I:GG:FJ>G:HI=>HI::-:;:G
ID/67A:';DGI=:6EEGDEG>6I:@>I;DGNDJGBD9:A
NOTE: $;6CND;I=:DG><>C6AL>G:HJEEA>:9L>I=I=:
=:6I:G BJHI 7:G:EA68:9 >IBJHI 7: G:EA68:9 L>I=
H>B>A6GH>O:9PL>G:DG>IH:FJ>K6A:CI
NOTE: !DG :;;>8>:C8N 7D>A:GH H:: HE:8>6A
>CHIGJ8I>DCHDCE6<:
CAUTION: +GDE:G>CHI6AA6I>DCD;;AJ:K:CI>C<>H8G>I>
86A;DGI=:H6;:6C9:;;>8>:CIDE:G6I>DCD;I=:=:6I:G
Appliance Categories
#:6I:GH6G:9>K>9:9>CID;DJG86I:<DG>:H76H:9DCI=:
EG:HHJG:EGD9J8:9>CI=::M=6JHI6C9I=:A>@:A>=DD9D;
8DC9:CH6I:EGD9J8I>DC>CI=:K:CI
Category I V=:6I:GL=>8=DE:G6I:HL>I=6CDCEDH
>I>K: K:CI HI6I>8 EG:HHJG: 6C9 L>I= 6 K:CI <6H
I:BE:G6IJG: I=6I 6KD>9H :M8:HH>K: 8DC9:CH6I: EGD
9J8I>DC>CI=:K:CI
Category II V=:6I:GL=>8=DE:G6I:HL>I=6CDCEDH
>I>K: K:CI HI6I>8 EG:HHJG: 6C9 L>I= 6 K:CI <6H
I:BE:G6IJG: I=6I B6N 86JH: :M8:HH>K: 8DC9:CH6I:
EGD9J8I>DC>CI=:K:CI
Category III V=:6I:GL=>8=DE:G6I:HL>I=6EDH>I>K:
K:CI EG:HHJG:6C9 L>I= 6K:CI <6H I:BE:G6IJG:I=6I
6KD>9H:M8:HH>K:8DC9:CH6I:EGD9J8I>DC>CI=:K:CI
Category IV V=:6I:GL=>8=DE:G6I:HL>I=6EDH>I>K:
K:CI EG:HHJG:6C9 L>I= 6K:CI <6H I:BE:G6IJG:I=6I
B6N 86JH: :M8:HH>K: 8DC9:CH6I: EGD9J8I>DC >C I=:
K:CI
.::/67A:(;DG6EEA>6C8:86I:<DGNG:FJ>G:B:CIH
Model Diameter Order Number
 X 
 X 


X 
Table L: Flue Exhaust Tee Kits
NOTE: !DG 699>I>DC6A >C;DGB6I>DC DC 6EEA>6C8:
86I:<DG>O6I>DCH::6EEGDEG>6I:).$5.I6C96G9
6C9 I=: )!" 0. DG  6C696 DG
6EEA>867A:EGDK>H>DCHD;AD86A7J>A9>C<8D9:H