Watts AERCO Edge [ii] Operation Manual page 172

Edge [ii] Controller Operation Manual
SECTION 7 – UNIT STATUS
b) SSOV Open – The check box turns green if the SSOV opened in the required 4
second time period. The time it took appears next to the check box. If the SSOV does
not open with 4 seconds, the box turns red and the unit displays a fault message.
c) Ignition Trial # – Displays current trial attempt (from 1 to 3) and begins a timer,
starting at 0 once the SSOV is proven open. The check box turns green if flame is
proven within 4 seconds or turns red if flame is not proven. If the trial is not successful,
the trial number is incremented, and the timer is reset. If the flame is not proven after 3
unsuccessful attempts, a fault message appears, as shown below.
Figure 7.1.6: Ignition Sequence - Screen 6, Summary with Fault Message
2. Once flame is proven:
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The Ignition box turns green.
•
Flame Proven appears with green checkmark box and the time it took for flame to be
proven.
•
The Summary and all parameters are automatically saved, including the ignition flame
strength, SSOV time to open and ignition time
3. The Summary screen disappears within 5 seconds (unless you press Home or Back).
However, it remains available in the round-robin operating screen pages until the next
successful ignition.
•
OMM-139_E 8/25/2020
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FAULT
MESSAGE
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