Aerco BENCHMARK 6000 - Page 125

Benchmark 6000 Boiler Installation, Operation & Maintenance Manual
CHAPTER 8 – TROUBLESHOOTING GUIDE
OMM-0086_0D AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 125 of 210
GF-133 Ph.: 800-526-0288 03/20/14
Figure 8-1: Gas Train Component and Pilot Gas Valve Location
Figure 8-2: Pilot Burner & Flame Detector Locations
SIGHT GLASS
MAIN FLAME
DETECTOR
TO PILOT
GAS LINE
BLOWER
BLOWER FLANGE
BURNER PLATE
PILOT
BURNER
PILOT FLAME
DETECTORS (2 EA.)
TO AIR/FUEL
VALVE
GAS
INLET
DOWNSTREAM LOW
GAS PRESSURE
SWITCH (6.9” W.C.)
HIGH GAS
PRESSURE
SWITCH
(10.5” W.C.)
MANUAL SHUT-OFF VALVE
UPSTREAM LOW GAS
PRESSURE SWITCH
(8.5” W.C.)
LEAK DETECTION BALL VALVE WITH 1/4" NPT PLUG
PILOT
REGULATOR
TEE WITH 1/4" PLUG
(INSTALL MANOMETER
HERE FOR PILOT
REGULATOR TESTS)
PILOT
SOLENOID
VALVE
PILOT GAS
VALVE