ZURN AquaSense ZER-SM Series User manual

Patent zurn.com/patents
US 1.855.ONE.ZURN CANADA 1.877.892.5216
ZURN.COM
Rev. B | Date: 05/01/23 | C.N. No. 145289 | Prod./Dwg. No. FV830
ZERK-SM
AquaSense®
ZER-SM Series
Automatic Battery-Powered
Flush Valve Retrot Kit
Installation, Operation, Maintenance
and Parts Manual
LIMITED WARRANTY
All goods sold hereunder are warranted to be free from defects in material and factory workmanship for a period of three years from the date of
purchase. Decorative nishes warranted for one year. We will replace at no costs goods that prove defective provided we are notied in writing of
such defect and the goods are returned to us prepaid at Sanford, NC, with evidence that they have been properly maintained and used in accordance
with instructions. We shall not be responsible for any labor charges or any loss, injury or damages whatsoever, including incidental or consequential
damages. The sole and exclusive remedy shall be limited to the replacement of the defective goods. Before installation and use, the purchaser shall
determine the suitability of the product for his intended use and the purchaser assumes all risk and liability whatever in connection therewith. Where
permitted by law, the implied warranty of merchantability is expressly excluded. If the products sold hereunder are “consumer products,” the implied
warranty of merchantability is limited to a period of three years and shall be limited solely to the replacement of the defective goods. All weights stated
in our catalogs and lists are approximate and are not guaranteed.
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FV830 Rev. B 05/01/23
Page 1
E-Z Flush Retrot Installation
Shut o󰀨 water supply at stop.
1. Shut o󰀨 water supply at stop.
2. Using the supplied wrench, loosen
handle nut.
3. Remove handle and its valve gasket
from ush valve.
Note: A small amount of water may
drip from the port.
4. Place the supplied valve gasket onto
the unit as shown. Use one hand to
raise the unit to the handle port of the
ush valve and use the other hand to
rotate the unit’s valve nut to begin en-
gaging the threads of the valve body.
5. Use the supplied wrench to tighten the
E-Z Flush unit securely to the valve
body.
6. Turn on water at the stop valve.
Note: Save handle in the event you wish to
reuse for service of E-Z Flush
Hex Key and
Valve Gasket
Important Safety Information
• Do not convert or modify this Zurn product. All warranties will be
voided.
• All plumbing is to be installed in accordance with applicable
codes and regulations.
• Water supply lines must be sized to provide an adequate
volume of water for each xture.
• Flush all water lines prior to making connections.
• Do not use pipe sealant or plumbing grease on any tting other
than the control stop inlet.
• Sensor units should not be located across from each other or in
close proximity to highly reective surfaces.
• Control stop should never be opened to allow ow greater than
xture is capable of evacuating. In the event of valve failure,
xture must be able to handle a continuous ow.
Specications
Sensor Range: 12” to 60” (adjustable)
Power Type: Battery powered; 4x C size
Operating Water Pressure: 25 psi [172 kPa] (Running); 80 Psi [552
kPa] Max (Static)
Operating Temperature: 35°F to 104°F [2°C to 40°C]
Prior to Installation
• Before installing your ush valve, the items listed below should
already be installed on-site:
- Water closet or urinal xture
- Fixture carrier
- Drain line
- Water supply line
Package Contents
E-Z Flush
Wrench
E-Z Flush®
Valve Gasket
Valve Nut

FV830 Rev. B 05/01/23
Page 2
E-Z Flush Activation
Using supplied hex key, remove battery compartment from the E-Z Flush unit.
Load the supplied batteries into the battery tray. Note the battery orientation shown. Reinstall
the battery tray into the E-Z Flush unit using the hex key. The user LED will blink when the
unit becomes powered.
Notes:
Your E-Z Flush unit comes preset from the factory. If special circumstances require adjustment
of the activation distance, see section of this manual “Adjusting Calibration Distance”.
Each E-Z Flush comes with a 24-hour ush mode that is disabled by default. To toggle this
mode, see the section of this manual entitled “Toggling 24-Hour Flush Mode”.
Each E-Z Flush comes calibrated from the factory to work optimally in most restroom environments. In low light or highly reective envi-
ronments however, it may be necessary to adjust the calibration distance of an E-Z Flush unit. To do this, a Zurn Magic Magnet may be
used. To re-calibrate an E-Z Flush with a Magic Magnet, follow the procedure below: comes calibrated from the factory. To re-calibrate
for a specic environment, follow these steps:
1. Stand at the desired calibration distance:
- ~28” from the sensor in a water closet application.
- ~22” from the sensor in a urinal application.
2. Raise the Magic Magnet to the top/bottom (depending on valve orientation - refer to image below) of the unit’s lens until the user LED
lights up.
3. Hold the Magic Magnet in that position until the user LED begins to blink. Remove the magnet and allow the user LED to blink 10 times
while standing in the same position. A quick double-blink signals that the calibration is complete.
4. Test the new calibration distance by walking away from the unit for 5 seconds and returning to the position at which it was calibrated.
Watch for the user LED to blink. If the user LED blinks, the calibration distance has been reset successfully.
Note: In water closet applications, it is a good idea to make sure that the new calibration distance does not allow the sensor to see
the stall door. To check this, exit the stall and close the stall door for 10 seconds. Open the stall door. If the unit does not ush, the
calibration distance is okay. If the unit ushes, you will need to recalibrate to a closer distance.
Adjusting Calibration Distance
Magic Magnet position
for LEFT hand install
Magic Magnet position
for RIGHT hand install
Status LED Status LED
Optional Accessary
Magic Magnet
P6900-AT-MAG

FV830 Rev. B 05/01/23
Page 3
Each E-Z Flush comes with a 24-hour auto-ush feature that is disabled by default. This feature is intended for low-use applica-
tions where trap seal depletion is a concern. To toggle this feature, follow the procedure below:
1. Raise a Magic Magnet to the top/bottom (depending on valve orientation - refer to image on previous page) until the user LED
lights up.
2. Lower the magnet so that the user LED turns o󰀨.
3. Repeat this turn on / turn o󰀨 procedure three more times.
4. After the fourth time, the user LED will display a series of rapid blinks. Three blinks signies that the feature has been toggled on.
Six blinks signies that the feature has been toggled o󰀨.
Toggling 24-Hour Flush Mode
PROBLEM CAUSE SOLUTION
User LED continuously blinks every
ve seconds.
Low battery life. Replace batteries.
Insu󰀩cient ow of water. Stop Valve improperly adjusted. Adjust stop valve (open).
Excessive ow of water. Stop Valve improperly adjusted. Adjust stop valve (close).
Continuous ow of water. Debris clogging ush valve’s
diaphragm.
Replace diaphragm kit (See sec-
tion entitled “Repair Parts”).
User LED does not blink when user is
present.
Calibration distance is set too short.
Conrm by placing hand 6” in front of
the sensor and watching for a blink. If
the user blinks, the calibration is set
too short.
Reset calibration to desired
distance (See section entitled
“Adjusting Calibration Distance”).
Batteries are dead. Conrm by placing
hand 6” in front of the sensor and
watching for a blink. If the user LED
does not blink, the batteries are dead.
Replace batteries.
Flush Valve Trouble Shooting Guide

Patent zurn.com/patents
US 1.855.ONE.ZURN CANADA 1.877.892.5216
ZURN.COM
Rev. B | Date: 05/01/23 | C.N. No. 145289 | Prod./Dwg. No. FV830