Watts 957RPDA Series Installation Instructions Manual page 3

Install the Flood Sensor and Activation Module
Attach the flood sensor and the activation module to the backflow relief valve. The activation module
receives a signal from the flood sensor when a discharge is detected. If the discharge meets the
conditions of a qualifying event, the normally open contact is closed to provide a signal to the Cellular
Gateway input terminal.
Custom Flood Sensor Settings
The default settings on the activation module for detecting discharge are suitable
for the assembly series. However, the DIP switches can customized for a different
wet threshold and time delay. Scan the QR code for more information.
1. Remove the bolts from the flood sensor.
3. Insert the bolts and tighten.
5. Press the activation module onto the sensor.
2. Position the two halves of the sensor on the relief valve.
4. Remove the dust cover from the sensor.
6. Check that the module is fully seated to seal the O-ring and
to make electrical contact.
NOTICE
Retain the dust cover to protect the flood sensor when the
activation module needs to be removed or replaced.
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