The pressure sensor cable and relief valve position cables are already attached to the relief valve monitor box. The
pressure sensor cable must be plugged into the zone pressure transducer on the cover of the backow preventer.
The relief valve position sensor is attached to the end of the cable in a composite protective cover. This cover attach-
es to the backow preventer relief valve.
Warning: All electrical connections should be made by qualied personnel.
To connect alternate triggers, outputs or alarm cables, rst turn o power and unplug the power cable to the box.
Then remove the two screws holding the lower cover panel inside the box. The two wires from an alternate trigger
that provides contact closure can be connected to the two terminals labeled Trigger A, T1&T2. A second alternate
trigger device can be connected to Trigger B, T3&T4.
Wires for the ACV solenoid on the model FCIS should already be connected to the ACV#1 or ACV#2 terminals. If
adding another ACV, these terminals provide 24vac output and can only be used on a solenoid rated for 24vac. The
solenoid ground wire should be connected to GND, T8. One of the two coil wires will connect to 24V COM terminal
T7 or T11 and the second coil wire will connect to the NO 24VAC, T5 or T9, or NC 24VAC terminal, T6 or T10. If the
solenoid is Normally Open (requires power to close) then connect to the NO terminal. The NC terminal is used for a
Normally Closed (power to open) solenoid valve.
The AUX terminals are used to connect to an external alarm or building monitoring system. These terminals provide
contact closure only. Use Normally Closed NC T12 or Normally Open NO T14 as required with the common COM
T13 terminal.
The AUX PWR terminals, T15, T16, T17, can be used to provide 120vac output power for a relay, 50ma max. When
the alarm outputs are not used, T12, T13, T14, the 120v can be routed through the AUX relay and turn 120 vac on or
o when the box goes into alarm.
Warning: A solenoid shuto valve should not be installed on a system that must be supplied with water at all times
(i.e. a hospital, processing plant, etc.) unless a back-up supply is also installed. If water must remain on during a
power failure, a normally open automatic control valve should be ordered.
If the downstream piping is above the backow preventer, then a failed 2nd check could cause relief valve discharge
to continue draining a system after the supply is o. For systems with large amounts of water, like a high-rise building,
a single check valve or solenoid shuto valve that works as a check valve should be installed after the backow
preventer.
Features
Input: 120vac, 1.24amps max
120 vac output: 50ma max
24vac output: 50 watts, 50 VA, or 2A max
Alarm contact rating: 3A
Replacement Fuse: 1.25 amp slow blow
Operation
The backow relief valve monitor senses the position of the relief valve plunger and the zone pressure. When the
relief valve opens, it calculates the amount of water discharged and sends a signal to the automatic control valve
(ACV) to shut down the water supply when discharge exceeds the maximum daily discharge allowed. This is factory
set at 50 gpm but can be adjusted when subscribing to the Zurn connected products portal. External trigger switches
(i.e. oat switch, water sensor, etc) that provide contact closure can also be connected to turn o the water supply.
To test the function of the water shuto, push the toggle switch to the TEST position. The red light on the top of the
box will come on and the solenoid valve will close. Turn the power switch O and back On to reset the ACV. Alarm
contacts are also provided to send a shutdown signal to an alarm panel or building monitoring system.
Connections
ZURN WILKINS
1747 Commerce Way, Paso Robles, CA 93446 Phone:855-663-9876 Fax:805-238-5766
2
www.zurn.com
