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Watts AERCO Benchmark BMK5000 - Page 35

Watts AERCO Benchmark BMK5000
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Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 3 - START SEQUENCE
OMM-0145_D GF-218 11/2/2020 Technical Support (800) 526-0288 Mon-Fri, 8 am - 5 pm EST Page 35 of 213
Start Sequence
Figure 3-2b: BMK1500 6000 Air/Fuel Valve In Purge Position
5. Next, the Blower Proof and Blocked Inlet switches close (Figure 3-4a and 3-4b). On the Ignition
Sequence screen the Purging indicator turns grey while purging is underway (Figure 3-3) and
Purge Timer displays the purge cycle’s elapsed time in seconds.
Figure 3-3: Ignition Sequence Screen Purging
Figure 3-4a: BMK750 & 1000 Blower Proof Switch
TO BLOWER
STEPPER
MOTOR
AIR IN
PURGE
VALVE POSITION
DIAL AT 100%
BLOWER PROOF SWITCH
BLOCKED INLET SWITCH

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