Watts Aerco Benchmark OMM-0117 Operation And Maintenance Manual page 76

Benchmark 5000-6000 Operation & Maintenance Manual
SECTION 5 – TROUBLESHOOTING GUIDE
TO AIR/FUEL
VALVE
MANUAL SHUT-
OFF VALVE
NATURAL GAS HIGH GAS
PRESSURE SWITCH
- BMK 6000 – 10.5" W.C., 2.6 kPa
- BMK 5000 – 11.0" W.C., 2.7
PROPANE HIGH GAS
PRESSURE SWITCH
- BMK 6000 – 10.5" W.C., 2.6 kPa
- BMK 5000 – 4.5" W.C., 1.1
Figure 5-1: Gas Train Component and Pilot Gas Valve Location
OMM-0118_B • GF-203 • 5/9/2019
PILOT SOLENOID VALVES
DOWNSTREAM
kPa
kPa
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
NATURAL GAS
NATURAL GAS
PILOT REGULATOR
SSOV
PROPANE
LOW GAS PRESSURE
SWITCH
- BMK 6000 – 8.5" W.C., 2.1 kPa
- BMK 5000 – 4.5" W.C., 1.1
NATURAL GAS
TEE with 1/4" PLUG
(Install manometer
here for Pilot
Regulator test)
NATURAL GAS
PILOT GAS VALVE
NATURAL GAS
LOW GAS PRESSURE SWITCH
- BMK 6000 – 8.5" W.C., 2.1 kPa
- BMK 5000 – 8.0" W.C., 2.0 kPa
PROPANE
PILOT SOLENOID
VALVES
PROPANE
TEE with 1/4" PLUG
(Install manometer
here for Pilot
Regulator test)
PROPANE
PILOT REGULATOR
PROPANE
PILOT GAS VALVE
kPa
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