Watts AERCO Benchmark BMK5000 Operation And Service Manual page 36

Benchmark Platinum-Edge [ii]: Operation-Service Manual
SECTION 4 – INITIAL START-UP
SSOV
1/4" NTP PLUG
(Install manometer here for
downstream combustion
calibration reading)
LEAK DETECTION BALL VALVE
Figure 4-1a: 1/4 Inch Gas Plug Location – BMK750 & 1000 (P/N 22322 shown)
MANUAL
SHUT-OFF
VALVE
1/4" NPT PLUG
(Install manometer here for
downstream combustion
calibration reading)
Figure 4-1b: 1/4 Inch Gas Plug Location – BMK1500 & 2000 (P/N 22314 shown)
OMM-0137_J •
12/20/2022
TO AIR/FUEL VALVE
TO
AIR/FUEL
VALVE
LEAK DETECTION
BALL VALVES
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
MANUAL SHUT-
OFF VALVE
1/4" NTP PLUG
(Install manometer here for
upstream combustion
calibration reading)
LEAK DETECTION BALL VALVE
NATURAL GAS INLET
NATURAL GAS INLET
SSOV
LOW GAS
PRESSURE
SWITCH
1/4" NPT PLUG
(Install manometer here for
upstream combustion
calibration reading)
Page 36 of 167
HIGH GAS
PRESSURE
SWITCH