Watts AERCO Benchmark OMM-0136 - Page 66

Benchmark Platinum-Edge [II]: Operation-Service Manual
SECTION 5 – SAFETY DEVICE TESTING
OMM-0137_E • GF-211 • 12/13/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 66 of 153
HIGH Gas Pressure Test Instructions: BMK3000 – 6000 ONLY
Figure 5-4b: HIGH Gas Pressure Test Components – BMK4000 Shown
HIGH GAS
PRESSURE
SWITCH
NATURAL
GAS INLET
HIGH Gas Pressure
Port
Install manometer here
for High Gas Pressure
test
TO AIR/FUEL
VALVE
MANUAL SHUT-
OFF VALVE
(P/N 22373-3 shown)
LOW GAS
PRESSURE
SWITCH
LOW Gas Pressure
Port
Install manometer here
for Low Gas Pressure
test
LEAK DETECTION
BALL VALVE