FV669 Rev. G 06/22/22
Page 10
Courtesy Flush Settings (when necessary)
A courtesy flush can be enabled for the ZER-TM flushometer where the valve will automatically flush at a specified interval based on
customer preference.
STEP 1
Reference Step 4 Battery installation section on page 6 to
remove battery cap.
STEP 2
Remove 4 small screws on two sides and 1 long screw in the
center (See figure 21) with cross head screwdriver.
STEP 3
Detach electronic housing cover slowly without disconnect
connector within electronic housing.
STEP 4
Manipulate DIP switches #2 and #3 (See table below) located
inside the electronic housing to change the courtesy flush
interval.
On
Off
Courtesy Flush Interval
DIP switch #2
DIP switch #3
Disabled (Default Setting)
OFF
OFF
24 hours
OFF
ON
48 hours
ON
OFF
72 hours
ON
ON
Figure 21
Figure 22
Dual Flush User Guide (For ZER6000AV-DF-TM Only)
•
The Dual Flush model supplies flush volumes of 1.1 and 1.6 gallons per flush. When a user is present for less than 60
seconds, the valve will flush with 1.1 gallons of water. When a user is present for over 60 seconds, the valve consumes 1.6
gallons of water. If the manual override button is pressed, the valve will always flush 1.6 gallons of water. A user must be
present for a minimum of 8 seconds in order to trigger a flush.
•
The Dual Flush model must be paired with a fixture with a flush volume range that includes 1.1 to 1.6 gallons per flush. For a
list of recommended bowls, please refer to our website, www.zurn.com, or speak with your local Zurn rep.
•
Do not use any abrasive or chemical cleaners to clean the flushometer.
•
The suggested cleaning of chrome plated surfaces is simply to clean them with mild soap and water, then dry. Commercial
cleaning compounds are never recommended.
•
Upon cleaning other areas of the restroom, be sure the sensor lenses are protected from other cleaning chemicals/solvents to
prevent potential damages to the sensor and/or electronics.
•
Valves used in installations subject to shut down because of cold and freezing conditions should be maintained in the following
manner. After the main supply has been shut off and the water drained from the system, remove the stop valve cap and stop
valve internals to allow the water to drain from the flush valve itself.
Care and Cleaning Instruction
