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Fig. 28: Status LED Indicator Decal
Heater Sequence of Operation
Models 302B-902B
 /=:7A68@=DIL>G:A:69<D:H9>G:8IANIDI=:B6>C
EDL:GHL>I8=/=>H7A68@ID<<A:HL>I8=>HAD86I:9
6II=:B>99A:;GDCID;I=:8DCIGDA8DBE6GIB:CI
 2=:CI=:B6>CEDL:GHL>I8=>HEA68:9>CI=:W*)X
EDH>I>DC1>H6EEA>:9IDI=:1I:GB>
C6A7AD8@DCI=:8>G8J>I7D6G96C9I=:1
IG6CH;DGB:G>HEDL:G:9
  1 >H L6>I>C< 6I I=: )* 8DCI68IH D; I=:
8DCDB6HI:GEJBE9:A6N
 /:GB>C6AH ' 6C9 ! D; I=: ><C>I>DC BD9JA: 6G:
EDL:G:9L>I=1
  1 EDL:G >H 6AHD 6EEA>:9 ID I=: 8DCIGDA
EDL:G8DCC:8IDGDCI=:8>G8J>I7D6G9
 1EDL:G>HL6>I>C<6II=:)*8DCI68IHD;
&G:A6NID:C:G<>O:I=:=:6I:G7ADL:G
 /=:1IG6CH;DGB:GDJIEJIH1
 1>HH:CIIDE>C'D;I=:ADLL6I:G8JID;;
DEI>DC6A6C9I=:G:9EDL:GA><=I>H:C:G<>O:9
 1>H6EEA>:9IDI=:7AJ:EDL:GA><=IAD86I:9
DCI=:HI6IJH9>HEA6N7D6G9
 1>H6AHD6EEA>:9IDI=:G:9' H6;:INH=JI
9DLC A><=I DC I=: ;GDCI HI6IJH 7D6G9 JCI>A I=:
H6;:I>:H=6K:7::CEGDK:C
 1>H6EEA>:9IDI=:6A6GB8>G8J>IDEI>DC6A$;
I=: H6A:HDEI>DCA6GB>H>C8AJ9:96H:8
DC9 I>B: 9:A6N G:A6N L>AA CDI 6AADL I=: 6A6GB ID
HDJC9JCA:HH 6H6;:IN DG A>B>I 8>G8J>IHI6NH :C:G
<>O:9;DGBDG:I=6CH:8DC9H
 +DL:G>H6EEA>:9IDI:GB>C6A+D;I=:0C>K:GH6A
>6<CDHI>8HD6G91EDL:G>HI=:C6EEA>:9
>CH:G>:HID6AAINE>86AAN8ADH:9H6;:I>:HL>G:9>CID
I=:=:6I:GAAH6;:I>:H6G:K:G>;>:9ID:CHJG:I=6I>I
>HH6;:IDDE:G6I:I=:=:6I:G/=:H6;:IN8DBED
C:CIH L>G:9 >CID I=: 9>6<CDHI>8 7D6G9 6G: ADL
L6I:G8JID;;DEI>DC6A7AD8@:9K:CIHL>I8=B6C
J6AK:CII:BEHL>I8=DEI>DC6AB6CJ6AG:H:I=><=
A>B>IADL<6HEG:HHJG:HL>I8=DEI>DC6A=><=<6H
EG:HHJG: HL>I8= DEI>DC6A 6C9 6JIDG:H:I =><=
A>B>IDEI>DC6A
 $;6CND;I=:H6;:I>:H9DCDI8ADH:6H><C6A>HH:CI
ID I=: 0C>K:GH6A>6<CDHI>8H D6G9ID >C9>86I:6
H6;:IN;6JAI
 +DL:G >H 6EEA>:9 ID I:GB>C6A /+ D; I=:
8DCDB6HI:G EJBE9:A6N ID :C:G<>O: I=: 8>G8J>I
7D6G9
 *C8:6AAH6;:I>:H6G:8ADH:96C9K:G>;>:961
H><C6A>HDJIEJI;GDBI=:JID#><='>B>IID%E>C
D;I=:+27D6G9D;I=:=:6I:G
 1EDL:G>HCDLH:CIIDI=:8D>AD;G:A6N&
 -:A6N&)L>AACDL7::C:G<>O:96C9DE:CH
I=:) 8DCI68IH ID 9>H67A: I=: 6A6GB DEI>DC6A
6C9IJGCHD;;I=:G:9' H6;:INH=JI9DLCA><=IDC
I=:;GDCIHI6IJH7D6G9
 /=:8DBBDCI:GB>C6AD;I=:JID#><='>B>IL>AA
CDLH:C961H><C6AIDE>CD;I=:WE6C:A
HL>I8=X
 /=:WE6C:A HL>I8=XGD8@:GHL>I8=AD86I:96II=:
ADL:GA:;I;GDCID;I=:8DCIGDA8DBE6GIB:CI>HCDL
EDL:G:9$;I=:HL>I8=>HW*)X6C9I=:G:>HCD86AA
;DG=:6I!#I=:=:6I:G>H>CHI6C97NBD9:
 ;I:G I=:HI6C97N HL>I8= >H EA68:9>CID I=:W*)X
EDH>I>DC 6  1 H><C6A >H H:CI ID I=:
W:C67A:9>H67A:X8DCC:8I>DCCDGB6AAN?JBE:G:9
 1HL>I8=:9EDL:G>H6EEA>:9IDI=:.1I:G
B>C6ADCI=:><C>I>DCBD9JA:
 2=:C I=: W:C67A:9>H67A:X 8DCI68IH 6G: 8ADH:9
I=:1H><C6AIG6K:AHIDE>CD;I=:HI6<:
8DCC:8I>DC6C9L6>IH;DG6!#
 2=:C6!#D88JGH61H><C6A>HH:CIIDI=:
!#A><=IDCI=:HI6IJHE6C:AAD86I:9DCI=:ADL:G
A:;I;GDCID;I=:8DCIGDA8DBE6GIB:CI