Watts AERCO Benchmark OMM-0136 Operation And Service Manual page 77

Benchmark Platinum-Edge [II]: Operation-Service Manual
SECTION 5 – SAFETY DEVICE TESTING
Purge Switch Open During Purge Check Instructions
AIR IN
Figure 5-11a: Air/Fuel Purge and Ignition Locations – BMK750/1000
Ignition Position
Switch
AIR/FUEL VALVE
SWITCH WIRING
BREAKOUT
Purge Position
Switch
Figure 5-11b: Air/Fuel Purge and Ignition Locations – BMK1500 – 4000
OMM-0137_E • GF-211 •
12/13/2019
Purge Position Switch
TO BLOWER
AIR IN
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
Ignition Position Switch
TO BLOWER
VALVE
POSITION DIAL
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