Watts AERCO Benchmark BMK750 Operation And Service Manual page 37
With edge (i) controller
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Also See for AERCO Benchmark BMK750:
- Operation and service manual (213 pages) ,
- Installation and start-up manual (62 pages) ,
- Design manual (12 pages)
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Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 3 - START SEQUENCE
Start Sequence
TO BLOWER
AIR IN
7. Up to 4 seconds are allowed for ignition to be detected. The ignition circuit is turned off one second
after flame is detected.
8. After 2 seconds of continuous flame, the flame strength is indicated. After 5 seconds, the Unit
Status screen appears.
9. With the unit firing properly, it will be controlled by the temperature control circuitry. The boiler's fire
rate or valve position (depending on which was chosen in Section 4.2.2: Front Panel Configuration
of the Edge [i] Controller Manual, OMM-0141, GF-213-B) will continuously display on the
Controller's bargraph.
10.
Once the demand for heat has been satisfied, the Edge [i] Controller will turn off the SSOV gas
valve. The blower relay will be deactivated and the Air/Fuel Valve will be closed. Standby is
displayed.
OMM-0145_A99 • GF-218 •
STEPPER
MOTOR
IGNITION
VALVE POSITION
DIAL AT
25% to 35%
Figure 3-5: Air/Fuel Valve In Ignition Position
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
9/18/2019
Page 37 of 157
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