Watts AERCO Edge [ii] - Page 143

Edge [ii] Controller Operation Manual
SECTION 6 – ADVANCED SETUP
OMM-139_E • 8/25/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 143 of 196
16. Go to the isolation valve and manually adjust when it sends the “valve open” signal to the
Controller. With the valve in its new, balanced “fully open” position, use a screw driver to
rotate the arrow on the Valve Position Signal Indicator so that it points well inside the “Valve
On” arc, as shown in the figure below. When the indicator arrow (moving counter-clockwise
when opening) passes the 1 at the top of the arc, the valve will send the “valve open” signal
to the Controller. If this step is not done, the Controller could abort the ignition sequence and
display a “Delayed Interlock Open” fault.
ISOLATION VALVE ISOLATION VALVE CLOSE-UP
Figure 6.3.4.8-7: Operating Controls: Isolation Valve
17. Repeat the previous step on all other units that have been balanced.
VALVE POSITION SIGNAL INDICATOR
(LOOK FOR ARROW – SHOWN “ON”)
POSITION ARROW INSIDE
THIS “VALVE ON” ARC
VALVE POSITION INDICATOR
(SHOWN OPEN)