General Gas Supply Layout (Example) - Riello DR 32 SE FGR Installation, Use And Maintenance Instructions

4.8.2

General gas supply layout (example)

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Key (Fig. 16)
AD2 Primary air damper
AD3 Secondary air damper
BP Pilot burner
AVJ Vibration damping joint
GF Gas filter
GV Gas butterfly valve
HPG High gas pressure regulator
LPG Low gas pressure regulator
MM Pressure gauge
PA Minimum air pressure switch
VPS Gas pressure sensor
PGm Minimum gas pressure switch
PGM Maximum gas pressure switch
SM1 Fuel servomotor
SM2 Primary air servomotor
SM3 Secondary air servomotor
PCV Pilot gas pressure regulator
SRV Vent Solenoid (Safety)
SSV Manual reset stop valve
VA Pilot air pressure regulation valve
VC Continuous purging solenoid
VE Fan
VR Gas pressure regulator solenoid valve
VP Gas safety solenoid
PGmP Minimum gas pressure switch for pilot
RGP Gas train for pilot burner
Installation
19 GB
PART THAT IS THE RESPONSIBILITY
OF THE INSTALLER/USER
Fig. 16
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