3
Solenoid Operation
(For Existing LFF113RFP Installations Only)
The Solenoid is prewired to the existing Junction Box, and must
be rewired by a certified electrician. The solenoid is equipped
with a Solenoid Bypass valve (normally closed) which manually
closes the Main Valve when engaged.
Opening the Solenoid Bypass Valve pressurizes the Main Valve
cover as indicated by Pressure Gauge, closing the Main Valve.
Closing Solenoid Bypass Valve and opening the Manual Reset
Ball Valve returns the Main Valve to the full open position.
Pressure Gauge returns to zero when the Main Valve is fully
open.
NOTE:
Manual Reset Ball Valve must be closed for normal
operation.
Installing the Flow Sensor
(Backfl ow Upgrade Kit Only)
The Flow Sensor is installed in the discharge piping from the
RPZ relief valve. If the Flow Sensor senses water in the dis-
charge piping, it will signal the Junction Box to close the valve.
Installation Notes
1. Install the supplied tee for the Flow Sensor in the RPZ dis-
charge line in the HORIZONTAL position as shown below.
2. Cut Sensor Probes to length. The ends of the Sensor Probes
should be located between
1
⁄
3
and
1
⁄
2
of the pipe’s inner diam-
eter from the pipe bottom. The probes MUST NOT BE less
than ¼" from the pipe wall.
3. Install Flow Sensor in tee, again ensuring that it is in the
HORIZONTAL position as shown below.
To Floor Drain
From RPZ Relief
Valve (with Air Gap)
Sensor Probes
Installed
Front View
Top View with
Cover Removed
2" NPT
WARNING
!
Certified electrician to connect main power and Flow Sensor to
Junction Box.
Ensure Sensor Probes do not contact pipe bottom or sides.
CAUTION
!
Installation and Operation
