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High Limit (Manual Reset)
/=:=:6I:G>H:FJ>EE:9L>I=6B6CJ6AG:H:I=><=A>B>I
I:BE:G6IJG:9:K>8:+JH=I=:G:H:I7JIIDC6C969?JHI
I
=:H:II>C<IDP!67DK:9:H>G:9DE:G6I>C<I:B
E:G6IJG:
Flow Switch
/=>H 9J6AEJGEDH: 8DCIGDA BDJCI:9 6C9 L>G:9 >C
H:G>:HL>I=I=:B6>C<6HK6AK:H=JIHD;;=:6I:G>C86H:
D;EJBE;6>AJG:DGADLL6I:G;ADL
Operating Control
/=: =:6I:G B6N 7: :FJ>EE:9 L>I= 9>;;:G:CI INE:H D;
DE:G6I>C<8DCIGDAHDCHJAII=:>C9>K>9J6A8DCIGDA96I6
H=::IHHJEEA>:9L>I=NDJG=:6I:GE6E:GLDG@.::I=:
":C:G6A .6;:IN .:8I>DC ;DG H6;:IN EG:86JI>DCH 8DC
8:GC>C<9DB:HI>8=DIL6I:G6EEA>86I>DCH
Fig. 30: High Limit (Manual Reset)
Fig. 31: Flow Switch
Low Water Cut-Off (Optional)
/=: ADL L6I:G 8JID;; 6JIDB6I>86AAN H=JIH 9DLC I=:
7JGC:GL=:C:K:GL6I:GA:K:A9GDEH7:ADLI=:A:K:AD;
I=: H:CH>C< EGD7:  H:8DC9 I>B: 9:A6N EG:K:CIH
E
G:B6IJG: AD8@DJI 9J: IDI:BEDG6GN 8DC9>I>DCH HJ8=
6HEDL:G;AJ8IJ6I>DCHDG6>GED8@:IH
Fig. 32: Low Water Cut-Off
High and Low Gas Pressure Switches
/=: ADL <6H EG:HHJG: HL>I8= DEI>DC6A 8DCC:8I>DC
BDJCIHJEHIG:6BD;I=:<6HK6AK:ID:CHJG:I=6IHJ;;>
8>:CI <6H EG:HHJG: >H EG:H:CI ;DG EGDE:G G:<JA6IDG
E:G;DGB6C8:/=:ADL<6HEG:HHJG:HL>I8=6JIDB6I>
86AANH=JIH9DLCI=:=:6I:G>;<6HHJEEAN9GDEH7:ADL
I=:G:8DBB:C9:9H:II>C<D;>C2;DGC6IJG6A<6H
6C9>C2;DGEGDE6C:<6H
/=: =><= <6H EG:HHJG: HL>I8= DEI>DC6A 8DCC:8I>DC
BDJCIH 9DLCHIG:6B D;I=: HI6<: <6HK6AK: $;I=:
<6H EG:HHJG: G:<JA6IDG ;6>AH I=: =><= <6H EG:HHJG:
HL>I8=6JIDB6I>86AANH=JIH9DLCI=:7JGC:G/=:=><=
<6H EG:HHJG: HL>I8= 6JIDB6I>86AAN H=JIH 9DLC I=:
=:6I:G>;<6HB6C>;DA9EG:HHJG:G>H:H67DK:I=:G:8DB
B:C9:9H:II>C<D;>C2;DGC6IJG6A<6H6C9
>C2;DGEGDE6C:<6H
Fig. 33: High/Low Gas Pressure Switch