Watts AERCO Edge [ii] - Air Fuel Valve Calibration

Edge [ii] Controller Operation Manual
SECTION 3: CALIBRATION
OMM-139_E • 8/25/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 72 of 196
3.4.1 Air Fuel Valve Calibration
Complete the instructions below to calibrate the Air/Fuel Valve.
Figure 3.4.1-1: Subsystem: Air/Fuel Valve Calibration Screen
1. Go to: Main Menu → Calibration → Subsystem → Air Fuel Valve.
2. Before starting the calibration, you have the option of adjusting the A/F Sensitivity.
(Range: 1% to 5%)
3. To start the calibration, press the Start button. The valve position (shown on the Air/Fuel
dial) automatically moves to 0%. If it settled at something other than 0%, you can manually
move the valve position using the Up or Down arrows until the Air/Fuel dial reaches 0%.
AIR FUEL VALVE CALIBRATION SCREEN AIR/FUEL VALVE
Figure 3.4.1-2: Subsystem: Air/Fuel Valve Calibration Screen – After Completion
4. When the Air/Fuel dial has settled at the 0%, the Save button appears. Press Save when
done to save the 0% calibration.
5. The valve now moves to the 100% position and the same options are available. Press Save
when done to save the 100% calibration.
6. The valve position now automatically moves to the 50% position. The Save button is
replaced with the Done button to signify completion, and a status message is displayed
above the valve position adjustment.
NOTE:
If the valve does not reach or read 50%, you can press Done but then repeat the process to
ensure calibration.
A/F
DIAL