Watts Aerco Benchmark Series - Page 19

Benchmark Platinum-Edge: Operation-Service Manual
SECTION 3 - START SEQUENCE
OMM-0137_D • GF-211 • 7/16/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 19 of 146
Start Sequence
Figure 3-2b: BMK 1500 – 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: BMK 750 & 1000 Blower Proof Switch
TO BLOWER
STEPPER
MOTOR
AIR IN
PURGE
VALVE POSITION
DIAL AT 100%
BLOWER PROOF SWITCH
BLOCKED INLET SWITCH