2X
6 7/16
2X 8 11/16
12 5/8
Smart Backflow Wireless Monitor
Note: This product to be installed in an indoor, dry or damp location only.
Single Water Shutdown
A single ZW206 Solenoid Control Valve
to shutdown the water supply to the
backflow preventer and system is our
standard installation. This will prevent the
discharge of water through a fouled first
check.
Double Water Shutdown
Two ZW206 Solenoid Control Valves to
isolate the Reduced Pressure Backflow
Assembly on both the inlet and outlet. A
second ZW206C installed downstream
will prevent water discharge due to a
fouled second check
Typical Installation
PLACING THE DEVICE IN SERVICE
1. Plug unit into a 120 VAC grounded outlet and wait 60 seconds for the electronics to
initialize before moving to step 2. GREEN LED on enclosure will turn on.
2. Toggle the switch position to the ZERO position and hold for three seconds, this will
set the closed position of the backflow relief valve position monitor.
ALTERNATE MOUNTING INSTRUCTIONS
1. Remove electronics enclosure from Unistrut or brackets on left ACV.
2. Locate mount hardware shipped with the electronics enclosure (taped to the side
of the enclosure)
3. Install the wall mount brackets onto the electronics enclosure using the self-tap-
ping pan-head screws provided (see picture on the right)
4.
Position the enclosure on a wall 3’ from the floor to the bottom of the enclosure
ina secure area. The position of the enclosure must be within 4’ of the backflow
preventer valve and sensors
5. Mount the enclosure to the wall with appropriate fasteners to meet the mounting
application.
6. Refer to the “Placing the device in service” above
Backflow Preventer with Wireless Monitoring – Model List *Sizes (2 1/2" - 10")
375ASTW1, 375AW1, 375W1
A
G
B
E
F
WILKINS
C515
WILKINS
C515
XL
VENT
EXTERNAL CABLES FOR THE
WALL MOUNT CONFIGURATION
ARE 6 FEET LONG
Model 375ASTW1 with NRS option
1
ZURN WILKINS
1747 Commerce Way, Paso Robles, CA 93446 Phone:
855-663-9876
Fax:805-238-5766
ISW1 (REV. B 7/20)
www.zurn.com
On/Off Zero/-/Test
ZERO
SWITCH
POWER
XL
VENT
12" MIN.
30" MAX.
12" MIN.
30" MAX.
XL
VENT
12" MIN.
30" MAX.
XL
VENT
Installation
Instructions
CAUTION:
Do not power unit until backflow preventer valve has been installed, pressurized and stable.
1. Install backflow preventer valve per Zurn Wlkins backflow preventer valve installation guide.
STANDARD MOUNTING
Electronics enclosure and electronics/sensors are pre-installed on the standard backflow preventer valve.
On model FCIS, once the ZW206 and backflow preventer have been installed, plug the pressure sensor cable from the enclosure
into the pressure transducer on the backflow preventer cover. Route the black position sensor housing to the relief valve cover
under the backflow preventer and attach with the two screws and 5/32" allen wrench.
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
ADVERTENCIA:
Cáncer y daño reproductivo - www.P65Warnings.ca.gov
AVERTISSEMENT:
Cancer et néfastes sur la reproduction - www.P65Warnings.ca.gov
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