Watts AERCO Benchmark OMM-0136 - Page 17

Benchmark Platinum-Edge [II]: Operation-Service Manual
SECTION 3 - START SEQUENCE
OMM-0137_E • GF-211 • 12/13/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 17 of 153
Start Sequence
Figure 3-1c: BMK2500: SSOV Location (P/N 22318 shown)
Figure 3-1d: BMK3000/4000: SSOV Location (P/N 22310 shown)
TO
AIR/FUEL
VALVE
MANUAL
SHUT-OFF
VALVE
LOW GAS
PRESSURE
SWITCH
SSOV
SSOV
TO
AIR/FUEL
VALVE
NATURAL
GAS INLET
HIGH GAS PRESSURE
SWITCH
MANUAL
SHUT-OFF VALVE
LOW GAS
PRESSURE
SWITCH
NATURAL
GAS INLET