MIOX RIO-S Series, Инструкция по установке, эксплуатации и обслуживанию

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MIOX RIO-S Series Operators Manual
102-00130-D Page 60
Water Flow Control Valve Re-Set Procedure
Tools Required: Small Phillips screwdriver, 2.5mm Allen wrench
On occasion, an anomaly in the control signal to the modulating actuator might cause the
actuator to “freeze up” and no longer respond to the 0-10 VDC control signal. If this
happens, follow these instructions to re-set the actuator:
Note: Be certain to isolate water flow feeding the OSG. Close the inlet water valve
prior to performing re-set procedure.
1. Remove the large DIN plug using Phillips screwdriver, this is the supply voltage to
the actuator.
2. Remove the control signal DIN plug using 2.5mm Allen wrench. This is the female
DIN plug in the center of the 3 DIN plugs.
Note: Be mindful of the square rubber gaskets and be sure to replace when
reconnecting plugs.
3. On the male DIN plug (the center control signal plug) on the actuator create a
short circuit between pin 1 and ground. Looking at the male DIN plug, head on, pin 1
is the pin in the 3 o’clock position. The ground pin is the flat pin in the 6 o’clock
position. A short circuit can be made with a piece of wire or the screwdriver blade.
The short circuit must be made when the power is switched back on, then the short
circuit released while the power remains on.
4. Replace the large DIN plug while the short circuit is made. Leave the power on
and then remove the short circuit.
5. The actuator should begin to re-set itself. It will move to full open position and
then back to fully closed position (for a normally closed actuator; if it is a normally
open actuator, the opposite will occur).
6. Plug in the control signal DIN plug.
7. Tighten the screws that hold the plugs in place.
8. The actuator should function properly again. If not, contact MIOX.
Note: Open the inlet water valve after completing re-set procedure.