Watts AERCO Benchmark BMK5000 Operation And Service Manual page 38

Benchmark Platinum-Edge [ii]: Operation-Service Manual
SECTION 4 – INITIAL START-UP
DOWNSTREAM
SSOV WITH POC
SWITCH
TO AIR/FUEL
VALVE
MANUAL
SHUT-OFF
VALVE
Figure 4-1e: Port Location for Combustion Calibration – BMK4000-5000N
Gas Supply Manometer Installation Instructions BMK5000 - 6000
1. Turn off the main gas supply upstream of the unit.
2. Remove the front panel from the boiler to access the gas train.
3. Connect the manometer directly to the Low and High Gas Pressure Switches, as shown in
Figure 4-1f.
OMM-0137_J •
12/20/2022
HIGH GAS
PRESSURE SWITCH
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
LOW GAS
PRESSURE SWITCH
UPSTREAM LEAK
DETECTION BALL VALVE
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