ZURN EcoVantage User 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 cost 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.
EcoVantage®
Dual Flush Closet Retrot Kit
ZRK-C-DF-1.6 1.6/1.1 gpf
RetroFlush® Retrot
Closet/Urinal Systems
ZRK-C-4.5
ZRK-C-3.5
ZRK-C-1.6
ZRK-U-3.0
ZRK-U-1.5
ZRK-U-1.0
EcoVantage®
ZRK Dual Flush Retrot Kit
Sensor-Operated, Battery-Powered
Retrot Kit.
Installation,
Operation, Maintenance
and Parts Manual
Patented and Patents Pending
RetroFlush®
ZRK Retrot Kit
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
ADVERTENCIA: Cáncer y daño reproductivo - www.P65Warnings.ca.gov
AVERTISSEMENT: Cancer et effets néfastes sur la reproduction - www.P65Warnings.ca.gov

FV486 Rev. D 7/16/18
Page 2
Zurn EcoVantage Dual Flush System Features
• Full Flush
The sensor will provide a full ush after a user is in range for 60 or
more seconds. The rst eight-seconds is a delay to prevent actuation
of the ush valve by a person walking past the sensor.
• Automatic 24-Hour Flush
The sensor will provide an automatic ush 24 hours after the last
ush. The automatic ush feature can be manually switched on or off
in the eld, depending on owner preference. The option is controlled
by switch number one. It is shipped from the factory in the off position.
• Maintenance Override
One may initiate an immediate flush by placing a magnet in
front of the sensor window for one-half to three seconds. This
feature is typically used by the cleaning staff who do not wish
to stand in front of the sensor to cause actuation.
One may prevent operation of the ush valve by placing a mag-
net in front of the sensor window for longer than three seconds.
This feature is typically used by maintenance or cleaning staff
who wish to prevent automatic actuation of the valve. This
feature is automatically defeated after ten minutes.
If one wishes to defeat the feature prior to the ten-minute time out,
simply place a magnet in front of the sensor window for one-half to
three seconds.
• Indicator Light
The sensor unit includes a red indicator light having three
functions:
1. Range Adjustment: For the rst ten minutes of operation, the
red light will ash when an object is detected. See page 4.
2. Low Battery Indication: When the batteries have reached the
caution level, the red light will ash when an object is detected.
When batteries reach a lower voltage level, a double blink every 3
seconds will occur constantly.
3. Abnormal Reection Indicator: When a reective surface
is present for longer than 30 minutes, the red light will ash
indicating that an object is being continuously detected.
• Adjustable Range
The detection distance is eld adjustable from 12 to 60 inches.
Slowly rotate the range adjustment clockwise to increase range
and counterclockwise to decrease range. The range adjustment will
stop at minimum and maximum settings. Do not turn beyond these
stops. For ten minutes after battery installation, a blinking red light
in the sensor window will appear when an object is in view. For an
additional ten minutes of blinking, push the reset button. Stand in front
of the sensor and move forward and backward to determine range.
• Selectable Flush Volume
For those installations that have ideal conditions for increasing
the water conservation of both the high and low volume ush-
es, a second (red) water saving volume control is included with
the unit and can be installed at the owner’s option. The red
volume control is stored inside the housing beside the sensor.
See step 10 for the recommended evacuation test.
The new Dual Flush ZRK RetroFit Kit is the latest edition to Zurn’s EcoVantage breakthrough product offering. The ZRK-DF incorporates the
Zurn Dual Flush sensor technology which provides the utmost in water savings while ensuring a high level of sanitation and xture performance.
Zurn Dual Flush sensor technology is designed to create a higher level of water conservation by distinguishing between liquid waste or solid waste
in the bowl then supplying the appropriate ush volume to satisfy a proper evacuation of the xture.
ZRK-DF retrot kits are supplied in the ush volume set of 1.6/1.1 gallons per ush. The higher ush volume is xture compatible to evacuation
solid waste while the lower ush volume presents the opportunity of an approximate 30% water savings when evacuating liquid waste.
The determination of a high or low ush volume is based on the amount of time the user is present in front of the sensor. If the user remains in
front of the sensor for less than one minute it is assumed the user deposited liquid waste into the bowl and a low volume ush is delivered. If the
user remains in front of the sensor for longer than a minute it is assumed the user deposited solid waste in the bowl and the higher volume ush is
delivered. (One must be in the sensor’s range for at least 8 seconds to initiate the start of the timing for either the high or low ush volume.) The 8
second requirement also prevents actuation of the ush valve by a person walking by. Note: Excessive amounts of toilet paper and/or seat cover
may not evacuate during water saving liquid ush. If paper or seat cover remains in the bowl, the user will need to press the water saving green
button on the side of the unit to clear the bowl.
The ZRK-DF RetroFit Kit is also equipped with color coded manual override buttons. The black button is for the higher ush volume and the green
button is for the lower ush volume.
Zurn EcoVantage Dual Flush
The Zurn ZR DF ush valve is a water savings device. When coupled with 1.6 water conserving toilet and a proper water supply, it will provide
years of trouble free performance. When considering the Zurn ZR DF ush valve, it is important to recognize that building layout and pipe sizing
for water supplies vary signicantly from location to location. These variations can alter the end performance of a closet system dramatically.
To achieve proper performance, a minimum of 45 psi running water pressure is recommended within the one inch supply line directly behind
the ush valve and control stop. Note: Installations with running pressure below recommended value may void warranty. Please refer to our
website, www.zurn.com (search “Z6000AV-WS1-DF),for a list of recommended bowls that have been tested and proven to perform in our
laboratory environment with the ZR DF ush valve.
Optional Version Included:
Certain installations have ideal conditions where additional water savings may be achievable. A red volume control device is provided with
each ZR DF ush valve. This red volume control should be installed as outlined on page 7 of this document to achieve optimal water savings in
conformance with ASSE 1037-90 and CSA B125.3-05. Please consult our website www.zurn.com (search “Z6000AV-WS1-DF) for the most up
to date list of qualied bowls for the dual ush application. The particular bowls listed have qualied as those that provide both good evacuation
and good bowl rinse characteristics per ASME A112.19.14-2006 requirements. We continue to test bowls as they become available on the
market.
Suggested Applications:

FV486 Rev. D 7/16/18
Page 3
1. Remove control stop cover button or cover and use a slotted
screwdriver to close water supply control screw (counterclockwise
rotation). Push handle to relieve pressure in the ushometer’s upper
chamber and to assure water is completely shut off. Water supply
control screw must be turned tight to shut off water.
1
2
2. Remove existing manual ushometer chrome cover and plastic cap
and remove the internal parts assembly. Remove manual ushome-
ter handle assembly. Be sure gasket is removed with hand assembly.
Discard
Discard
Gasket
Handle
Assembly
3. Remove blue solenoid valve cap. Attach Zurn RetroFlush sensor
assembly with gasket to the handle port of the ushometer. Hand
tighten new handle nut - positioning hole (J) to top. Remove blue
ltered riser tube cover. Insert Zurn RetroFlush ltered riser tube
(K) from the top of the ushometer and screw into solenoid valve
- snug with screwdriver. Do not overtighten.
Hand turn end
with threaded
hole so hole is
positoined at top.
J
K
4. Assure riser tube is vertical. Insert new Zurn RetroFlush internal dia-
phragm kit. Diaphragm kit will slide over riser tube and seat in valve.
Replace original plastic cap and fully tighten original brass cover.
3
ZRK
ZRK-DF
New
RetroFlush
Diaphragm
Kit
Riser Tube
4
Shown with ZRK-DF

FV486 Rev. D 7/16/18
Page 4
7. Adjust feature settings as desired. The sensor range is factory set
to 48”. If adjustment is necessary, use a phillips head screwdriver
and turn GENTLY. SEE SENSOR RANGE ADJUSTMENT. Replace
electronics access cover and tighten securely with vandal-resistant
hex wrench. Turn water supply on and reinsert stop cover button.
Check to assure cover is leak free.
Sensor Range Adjustment
The range is factory set for closet applications. If necessary, the sensor
range can be adjusted. Pressing the reset button will initiate a ten minute
set-up period. During these ten minutes a red light will ash through the
sensor lens when an object is in view of the sensor. Use this feature
to properly set the sensor range. Slowly rotate the range adjustment
clockwise to increase range and counterclockwise to decrease range.
The range adjustment will stop at minimum and maximum settings. Do
not turn beyond these stops. For an additional ten minutes of blinking,
push reset button. Stand in front of sensor (minimum 10 seconds) and
move forward and backward to determine range.
Switch 1 - Flush Time- Factory setting - “ON” (1.6 gpf/1.1 gpf)
“OFF”
Switch 2 - 24 Hour Flush - The unit will automatically ush 24 hours
after the last user. On position = activate,Off position = deactivate.
7
Decrease
Range
Increase
Range
Range Adjustment
On-Off Switches Reset Button
5. Loosen handle nut, aim sensor at desired tilt angle (horizontal, tilt
up, or tilt down), hold in place and tighten handle nut
6. Remove electronics access cover (M) with vandal-resistant hex
wrench (N) provided. Insert preassembled battery holder into elec-
tronics compartment. Connect battery cable connector to electronics
cable connector. (Important: Insert non-connector end of battery
holder rst, as shown. Ensure foam spacer is in place)
8.For those installations that have ideal conditions for increasing the
water conservation of both the high and low volume ushes, a second
(red) water saving volume control is included with the unit and can
be installed at the owner’s option. The red volume control is stored
inside the housing beside the sensor.
9.A wall sign has been furnished with this product to inform the user of
its operations. Position the wall sign over the ush valve approxi-
mately 40” above the toilet.
10.RECOMMENDED EVACUATION TEST
• Obtain 8 ft toilet paper
• Fold in 4” lengths
• Place toilet paper bundle at edge of water in toilet such that
bundle is partially exposed to water
• Press green manual override button for reduced ush
• 100% evacuation-pass
• <100% evacuation: check supply line and stop for obstruction;
otherwise, system is not suitable for DF feature. If applicable,
re-install yellow volume control and retest.
Range Adjustment
On-Off Switches Reset Button
Switch 1 - 24 Hour Flush - The unit will automatically ush 24 hours
after the last user. On position = activate,Off position = deactivate.
Switch 2 - Courtesy Flush - When an obhect has been detected for 2
seconds, the unit ushes then goes into normal mod. On position =
activate,Off position = deactivate. (Always press reset button after
changing switches.)
Switch 3 - Flush Time- Factory setting
Switch 4 - Urinal Water Saver - Reduces ush volume by 40% during
periods of continuous usage.
ZRK
ZRK-DF
Reference
Illustration
8
8a
8b
Adjust sensor
angle to pick
up user
Tilt Down
Horizontal
Tilt Up
5
Shown with ZRK-C
6
M
N
Phillips Head
Screwdriver

FV486 Rev. D 7/16/18
Page 5
Removing the Old Solenoid
1. Turn off water supply to ush valve at shut off (S.O.).
2. Cycle the valve once – ush it to relieve pressure holding the valve
closed.
3. Remove the main valve body cap (Item #1) from the ush valve (Item
#6) using a wrench.
4. Remove the plastic diaphragm cover (Item #2) from the top of the
diaphragm assembly.
5. Remove the diaphragm assembly (Item #3) from the ush valve
(Item #6).
6. Using a screwdriver, remove the riser tube (Item #5) from the sole-
noid (Item #7).
7. Remove the RetroFlush sensor assembly (Item #9) from the ush
valve handle port using a wrench on the handle nut (Item #11).
8. Remove the solenoid retaining clip (Item #8) and
gently pull the solenoid (Item #7) out of the housing.
Note: Pay special attention to the position of the retaining clip
ends to ensure proper reassembly into the proper slots.
9. Disconnect the sensor cable connector from the solenoid.
Installing the New Solenoid
ZRK Dual Flush Retrot Kit
Solenoid Replacement Instructions
5. Reinstall the riser tube (Item #5) onto the solenoid (Item #7). Tighten
snug with screwdriver, do not overtighten.
6. Reinstall the original diaphragm assembly (Item #3)onto the ush
valve (Item #6).
7. Reinstall the original plastic diaphragm cover (Item #2) on top of the
diaphragm assembly (Item #3).
8. Reinstall the main valve body cap (Item #1) onto the ush valve (Item
#6) using a wrench. Tighten properly.
9. Remove battery cover (Item #10) from RetroFlush sensor assembly
(Item #9) with the hex key wrench provided and press reset button
located on the sensor module case. Reinstall cover (Item #10).
10.Turn on water supply and cycle ush valve for normal operation.
Adjust stop valve for optimal ow to the xture.
1. Connect the cable connector on the solenoid (Item #7) to the sensor
cable connector.
2. Lightly lubricate the solenoid O-ring seal with silicone grease provided
to prevent damage while reassembling the unit. Insert the solenoid
(Item #7) into the housing and install the solenoid retaining clip (Item
#8). When installed properly, the end of the solenoid housing isfree
to rotate. Note: Be careful not to crimp the battery wires while
inserting the solenoid into the housing.
3. Reinstall the RetroFlush sensor assembly (Item #9) onto the ush
valve using a wrench. Be sure the solenoid inlet (threaded hole) is
facing upward when installed in the ush valve. If not, remove Item
#9 and rotate the solenoid for proper position.
4. Remove old O-ring (Item #4) from the upper part of the riser tube
(Item #5). Install new quad ring (Item #4) onto the riser tube (Item
#5) making sure the quad ring is not twisted. Lightly lubricate the
quad ring with the silicone grease provided.

FV486 Rev. D 7/16/18
Page 6
Dual Flush Replacement Guide
1 Main Valve Body Cover
2 Plastic Cover
3 Volume Control
(Yellow or Red)
4 Diaphragm
5 Riser Tube
6 Main Valve Body
(with Tailpiece)
7 O-Ring
8 Gasket
9 Solenoid Valve
10 Solenoid Valve Retainer Clip
11 Metal Housing
12 Sensor Electronics
13 Sensor Lens Kit for Dual
Flush
14 Sensor Screws - 2
15 Battery Holder and Battery
16 Connecting Cable
17 O-Ring Seal
18 Metal Housing Cover
19 Push-Button Assembly
20 Cover Screw & O-ring
21 Cover Screw Wrench
22 Red Volume Control
Instructions
CoversV Product No.
Outside Cover – Chrome Plated(1) P6000-LL-CP
Inside Cover(2) P6000-L
Replacement Kits Product No.
Low-Consumption Closet Replacement Kit(4) - 1.6/1.1 PR6000-EC-WS1-DF
Replacement Parts – Inside Components Product No.
Riser Tube(5) PR6000-E13F
Low-Consumption Closet Volume Control - 1.6 GpF(3) - Yellow PR6000-EC25-DF
Low-Consumption Dual Flush Closet Volume Control - 1.6 GpF(3) - Red PR6000-EC25-WS1-DF
Diaphragm P6000-E15A-ENG
Sensor Module Replacement Kits Product No.
Solenoid Valve Replacement Kit(8, 9, 10) PR6000-M
Sensor Lens Kit for Dual Flush(12) PR6000-SC-DF
1.6/1.1 Sensor(13) PR6000-DF-1.6
Battery Holder with Connecting Cable(15, 16) PR6000-MB
Metal Housing(11) PR6000-MH
Vandal-Resistant Cover Wrench(21) PR6000-W
Cover with Screw and Seal for Dual Flush(17-20) PR6000-MC-DF
Push Button Switch for Dual Flush(19) PR6000-PB-DF

FV486 Rev. D 7/16/18
Page 7
RetroFlush Replacement Guide
1 Main Valve Body Cover
2 Plastic Cover
3 Volume Control
(Yellow or Red)
4 Diaphragm
5 Riser Tube
6 Main Valve Body
(with Tailpiece)
7 O-Ring
8 Gasket
9 Solenoid Valve
10 Solenoid Valve Retainer Clip
11 Metal Housing
12 Sensor Electronics
13 Sensor Lens Kit for Dual
Flush
14 Sensor Screws - 2
15 Battery Holder and Battery
16 Connecting Cable
17 O-Ring Seal
18 Metal Housing Cover
19 Cover Screw & O-ring
20 Cover Screw Wrench
CoversV Product No.
Outside Cover – Chrome Plated(1) P6000-LL-CP
Inside Cover(2) P6000-L
Replacement Kits Product No.
Closet Replacement Kit(4) PR6000-EC
Water-Saving Closet Replacement Kit(4) PR6000-EC-WS
Low-Consumption Closet Replacement Kit(4) PR6000-EC-WS1
Urinal Replacement Kit(4) PR6000-EU
Water-Saving Urinal Replacement Kit(4) PR6000-EU-WS
Low-Consumption Urinal Replacement Kit(4) PR6000-EU-WS1
Replacement Parts – Inside Components Product No.
Riser Tube(5) PR6000-E13F
Closet Volume Control - 4.5 GpF(3) PR6000-EC25
Water-Saving Closet Volume Control - 3.5 GpF(3) PR6000-EC25-WS
Low-Consumption Closet Volume Control - 1.6 GpF(3) PR6000-EC25-WS1
Urinal Volume Control - 4.5 GpF(3) PR6000-EU25
Water-Saving UrinalVolume Control - 3.5 GpF(3) PR6000-EU25-WS
Low-Consumption Urinal Volume Control - 1.6 GpF(3) PR6000-EU25-WS1
Diaphragm PR6000-E15A
Sensor Module Replacement Kits Product No.
Solenoid Valve Replacement Kit(8, 9, 10) PR6000-M
Sensor Lens Kit(12)
PR6000-SC
High Volume Sensor(13) PR6000-SH
Low Volume Sensor(13) PR6000-SL
Battery Holder with Connecting Cable(15, 16) PR6000-MB
Metal Housing(11) PR6000-MH
Vandal-Resistant Cover Wrench(20) PR6000-W
Cover with Screw and Seal for RetroFlush(17-19) PR6000-MC

Product Specications
Sensor Range: 12” to 60” (adjustable)
Battery Type : AA Duracell Alkaline – Model MN-1500
Battery Life: 3 years at 4,000 ushes per month
Flush Volume: ZRK-C-DF-1.6 – 1.6/1.1 gallons per ush
Voltage: 6 VDC
Operating Water
Pressure: 45 psi min running; 80 psi max static.
Note: Installations with running pressure
below recommended value may void
warranty.
Automatic Flush: Flush 24 hours after the last use (switchable)
Maintenance
Override: Magnetic ush triggering or inhibiting
switch (see page 2)
Indicator Light: Range Adjustment (rst ten minutes)
Low Battery Indication (see page 2)
Reective surface in view for greater than 30
minutes (see page 2)
Reset Button: To restart ten-minute rangeadjustment cycle
To enter option changes in the electronics after
repositioning switches (see page 2)
Operating
Temperature: 35°F to 104°F (2°C to 40°C)
Outside Case
and Cover: Chrome-Plated Die Casting
Operation
1. Invisible light rays are continually emitted from the RetroFlush sensor.
2. When the user comes into range of the sensor’s detection zone (range
12 to 60 inches), the beam is reected back to the sensor’s reciever
and converted to a low voltage electrical signal that activates an
eight-second time delaycircuit. This time delay prevents the unit from
incidental activation in the restroom. Once this circuit is completed,
the output circuit is signaled and continues in a “hold” mode for as
long as the user remains within range of the sensor. User must be in
sensor range for at least 10 seconds.
3. After the user moves away from the sensor, the absence of reected
light starts an electrical “one-time” signal that operates the solenoid
operator (6 VDC) and activates the ushing cycle to ush the xture.
The circuit then automatically resets for the next user.
Note: Excessive amounts of toilet paper and/or seat cover may not evac-
uate during water saving liquid ush. If paper or seat cover remains
in the bowl, the user will need to press the water saving green button
on the side of the unit to clear the bowl.
Care and Cleaning Instructions
DO NOT use abrasive or chemical cleaners to clean ush valve as they
will dull the luster and attack the chrome or special decorative nishes.
Use only mild soap and water, then wipe dry with a clean cloth or towel.
While cleaning the bathroom tile and oor, the ush valve and electronics
should be protected from splattering of water, cleaner, acids and cleaning
uids that can damage the sensor ush valve.
Problem Cause Solution
Valve will not
operate
Water supply shut off Turn on water supply, check control stop and supply
Sensor range adjustment set too short Increase sensor range adjustment
Expired batteries Replace batteries
Difculty with electronic control module Check batteries. If problem continues, consult factory.
Solenoid problem Replace solenoid
Red light ashes
when user is not
present
Obstruction in front of the sensor Remove the obstruction
Sensor range set too long
Sensor is detecting opposite wall
Shorten sensor range
Red light ashes
when user comes
into view
Batteries about to expire Replace batteries
Unit is in start-up mode Light will stop in 10 minutes
Range adjustment reset button was
pressed.
Light will stop in 10 minutes
Valve does not shut
off
Dirt in diaphragm bypass hole Clean bypass hole
Dirt or debris at valve seat or sealing
area
Clean valve seat and clean diaphragm kit
Riser tube lter plugged Clean ltered riser tub
Solenoid problem Replace solenoid
Not enough water to
xture
Wrong RetroFlush unit installed Check xture requirements. Install proper RetroFlush
unit.
Control stop improperly adjusted Adjust control stop
Diaphragm damaged Replace diaphragm
Low running pressure Adjust water supply to ensure 45 psi running pressure
at each valve. Move switch #1 to the off position and
press the RESET button for more water per ush.
Solenoid problem Replace solenoid
Too much water for
xture
Wrong RetroFlush unit installed Check xture requirements. Install proper RetroFlush
unit.
Control stop improperly adjusted Adjust control stop
Dirt in diaphragm bypass hole Clean bypass hole
Customer wishes to realize maximum
water savings
Change out yellow volume control to red volume
control included with kit.
Water drips from
chrome cap
The plastic cover has been cracked by
freezing or abuse
Replace plastic cover
The chrome cap is not tight Tighten chrome cap
RetroFlush kit does
not t handle port
Sloan A-29 copper ring used as handle
port gasket
Remove copper ring
TROUBLESHOOTING GUIDE
ZURN INDUSTRIES, LLC 5900 Elwin Buchanan Drive, Sanford, NC U.S.A. 27330, Ph. 1-800-997-3876, Fax [phone]
In Canada: ZURN INDUSTRIES LIMITED 7900 Goreway Drive, Unit 10, Brampton, Ontario L6T 5W6, Ph. 905-405-8272, Fax [phone]
Rev. D Date: 7/16/2018 C.N. No. SAN008311 Prod. | Dwg. No. FV486