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Bosch 125FX LP Installation And Operating Instrictions page 11

Automatic instantaneous type water heater for use with natural and liquefied petroleum gas

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THREADED ASSEMBLY
1/2” ELBOW
S FITTING
PIPE PRV TO
APPROPRIATE
DISCHARGE
SWEATED ASSEMBLY
1/2” ELBOW
S FITTING
PIPE PRV TO
APPROPRIATE
DISCHARGE
Pressure
Pressure
Relief
Relief
Valve
Valve
1 - microswitch
2 - electric control box
3 - exhaust fan
4 - fuse
5 - circuit interrupter
6 - electronic control box
7 - temperature limiter
8 - sensors of exhaust gases
9 - ionization probe (flame
sensor)
10 - pilot electrode
11 - pilot electrovalve
12 - gas control valve
13 - burner electrovalve
14 - power cord

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