Antunes VZN Series User manual

P/N 1011114 Rev. J 04/17
Water Filtration System
owner’s manual
Model VZN-421HC - VZN-441HC
Manufacturing Numbers:
9700770 & 9700772
www.antunes.com
System Tested and Certified by NSF
International and WQA against NSF/ANSI
Standard 42 and 53 for the reduction of:
Standard No. 42: Aesthetic Effects
Nominal Particulate Reduction Class I
Standard No. 53: Health Effects
Cyst Reduction & Turbidity Reduction as
verified and substantiated by test data.
System Tested and Certified by WQA
against NSF/ANSI Standard 372
for lead-free compliance

VZN SERIES
2P/N 1011114 Rev. J 04/17
General
The VZN system is an innovative filtration system that uses
proprietary multi-bore hollow fiber membranes as well as a
carbon element to provide the latest innovation in filtration
technology.
This manual provides the safety, installation, and
operating procedures for the VZN water filtration system. All
information contained in this manual should be read prior
to installing and operating the system. Your VZN system
is manufactured from the finest materials available and is
assembled to strict quality standards. This system has been
tested at the factory to ensure dependable trouble-free opera-
tion.
OWNER INFORMATION
TABLE OF CONTENTS
IMPORTANT! Keep these instructions for future reference. If the system changes
ownership, be sure this manual accompanies the equipment.
Warranty Information
Please read the full text of the Limited Warranty in this
manual.
If the system arrives damaged, contact the carrier immedi-
ately and file a damage claim with them. Save all packing
materials when filing a claim. Freight damage claims are the
responsibility of the purchaser and are not covered under
warranty.
The warranty does NOT extend to:
• Damages caused in shipment or damage as result of
improper use.
• Installation of electrical service.
• Normal maintenance as outlined in this manual.
• Malfunction resulting from improper maintenance.
• Damage from moisture leaking into electrical
components.
• Damage from tampering with, removal of, or changing
any preset control or safety device.
Owner Information ...............................................................2
General............................................................................... 2
Warranty Information.......................................................... 2
Service/Technical Assistance ............................................. 3
Important Safety Information ..............................................4
Specifications .......................................................................6
Dimensions......................................................................... 6
Electrical Ratings ............................................................... 6
Replacement Cartridges .................................................... 6
Electrical Cord & Plug Configurations................................ 6
Performance Data Sheet......................................................7
Filter Cartridge Capacities.................................................. 7
Performance Claims for Percent Reduction....................... 7
Operation...............................................................................8
Overview ............................................................................ 8
Manual Flushing................................................................. 8
Installation.............................................................................9
Unpacking .......................................................................... 9
Equipment Setup................................................................ 9
Mounting the System ....................................................... 10
Drain Valve Connection.....................................................11
Rinse Valve Connection ................................................... 12
System Inlet Connection .................................................. 12
Filtered Water Permeate Outlet Connection .................... 12
Inlet Water Plumbing........................................................ 12
Installing a Bypass ........................................................... 13
Starting the Controller ...................................................... 13
Rinsing the Ultra Filter Cartridge...................................... 13
Sanitizing the System and Lines...................................... 14
Installing and Rinsing the Carbon Element ..................... 14
Maintenance........................................................................15
Replacing the Ultra Filter Cartridge.................................. 15
Rinsing and Replacing the Carbon Element.................... 16
System Sanitization.......................................................... 16
Changing the Interval Setting........................................... 17
Resetting the Timer Program ........................................... 17
Check Permeate Tank Air Pre-Charge............................. 17
Troubleshooting .................................................................18
Replacement Parts .............................................................19
Limited Warranty ................................................................24

VZN SERIES
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P/N 1011114 Rev. J 0417
Purchased From:
Date of Purchase:
Model No.:
Serial No.:
Mfg. No.:
Service/Technical Assistance
If you experience any problems with the installation or opera-
tion of your system, contact Antunes Technical Service at
[phone] (toll free).
Fill in the information in the next column and have it handy
when calling for assistance. The serial number is on the
specification plate located on the system.
OWNER INFORMATION (continued)
IMPORTANT
A.J. Antunes and Company reserves the right to change specifications and product
design without notice. Such revisions do NOT entitle the buyer to corresponding
changes, improvements, additions, or replacements for previously purchased equipment.
Suggested replacement period for the Ultra Filter Cartridge is
approximately 3 years.
For sales in the state of Iowa:
Seller: Date:
Buyer: Date:

VZN SERIES
4P/N 1011114 Rev. J 04/17
IMPORTANT SAFETY INFORMATION
In addition to the warnings and cautions in this manual, use
the following guidelines to safely operate the system:
• Read all instructions before using equipment.
• Install or locate the equipment only for its intended use
as described in this manual.
• Do NOT use corrosive chemicals in this equipment.
• Do NOT operate this equipment if it has a damaged
cord or plug; if it is not working properly, or if it has
been damaged or dropped.
• This equipment should be serviced by qualified person-
nel only. Contact A.J. Antunes & Co. for repair.
• Do NOT immerse cord or plug in water.
• Keep cord away from heated surfaces.
• This equipment should be supplied with only cold
water.
• For installations in Massachusetts, the Commonwealth
of Massachusetts Plumbing Code 248 CMR shall be
adhered to. The use of saddle valves are not permitted.
Please consult your local plumber.
The following warnings and cautions appear throughout this
manual and should be carefully observed.
• Unplug the power cord before performing any
service or maintenance on the unit.
• All electrical connections must be in accordance with
local electrical codes and any other applicable codes.
• WARNING ELECTRICAL SHOCK HAZARD. FAILURE
TO FOLLOW THESE INSTRUCTIONS COULD
RESULT IN SERIOUS INJURY OR DEATH.
- Do NOT modify the power supply cord plug. If it
does not fit the outlet, have a proper outlet installed
by a qualified electrician.
- Do NOT use an extension cord with this unit.
• If the supply cord is damaged, it must be replaced by
the manufacturer, its service agent, or a similarly quali-
fied person.
• This equipment is to be installed to comply with the
local plumbing code and any other applicable code.
• Water pressure must not exceed 100 psig (690 kPa).
To reduce water pressure, install a water pressure
regulator and set to suit the application.
• The trans membrane pressure (inlet pressure minus
the permeate water pressure) must not exceed 45 psi
(310 kPa).
• A ground fault circuit interrupter (GFCI) must be
installed on the circuit to this system.
• When installed on metallic plumbing, a properly sized
electrical bonding jumper must be installed across the
inlet and outlet pipes serving this unit.
NOTE: If the inlet water pressure is less than 50 psig (345
kPa), it is recommended that a suitably-sized booster
system (outlet pressure 60 psig - 100 psig max (414 kPa -
690 kPa max) be installed.

VZN SERIES
5
P/N 1011114 Rev. J 0417
IMPORTANT SAFETY INFORMATION (continued)
CAUTION
This equipment is to be installed to comply with the
basic plumbing code of the Building Officials and Code
Administrators, Inc. (BOCA) and the Food Service
Sanitation Manual of the Food and Drug Administration
(FDA).
CAUTION
All electrical connections must be in accordance with
local electrical codes and any other applicable codes.
A ground fault circuit interrupter (GFCI) must be
installed on the circuit to this system.
When installed on metallic plumbing, a properly sized
electrical bonding jumper must be installed across the
inlet and outlet pipes serving this unit.
CAUTION
Water Flow Regulator Assemblies are NOT interchange-
able. Operating the system with the wrong Water Flow
Regulator or without a regulator can damage the sys-
tem, cause personal injury, and voids the warranty!
Protect from becoming dry
If the membrane dries out, irreversible damage to the Ultra
Filter membrane may result. Protect the filter from becoming
dry by keeping it wet and sealed at all times.
Protect from freezing
If the Ultra Filter membrane freezes during operation or stor-
age, irreversible damage to the membrane and brittle cracking
of the cartridge or housing may result.
Protect from direct sunlight or other UV sources
Avoid long-term exposure to direct sunlight or other UV
sources. The Ultra Filter should be stored in a dark location.
Protect from high temperatures or abrupt variation in
temperature
The maximum operating temperature is 100°F (38°C). Avoid
abrupt variations in temperature. Any temperature variation
should be made slowly.
Protect from rough handling or dropping
Mechanical damage, external breakage, and/or internal break-
age of the filter can result if the system is dropped or bumped.
Handle with care at all times during transportation and instal-
lation.
Protect from organic solvents and concentrated acids
Prevent any and all contact of the membrane with strong sol-
vents, solvents containing chlorine, or concentrated acids. Do
NOT use strong solvents or concentrated acids on any plastic
parts of the filter system. Examples of some solvents to avoid:
acetone, methyl acetate (nail polish remover); hexane (spot
removers); turpentine, toluene (paint thinners); dry cleaning
solutions, insecticides.
Protect from abrasive material
The membranes must be protected from abrasive materials
like shavings left in a pipe. Abrasive materials in contact with
the membrane can cause irreversible damage to the mem-
brane. All pipes must be flushed clean before installing the fil-
ter. All plastic parts of the filter system must be protected from
sharp objects like knives, sand paper, or other tools. Cutting
or nicking a plastic part can weaken it and cause a leak. Do
NOT use abrasive cleansers on any plastic parts.
Protect from water hammer
The system must be protected from shock, pressure surges,
or pulsation that may occur inside water pipes. Water ham-
mer occurs in pipes when a valve or faucet shuts quickly.
Install a water hammer arrestor (pressure vessel containing
compressed air separated from the water by a diaphragm) to
reduce pressure shock.

VZN SERIES
6P/N 1011114 Rev. J 04/17
SPECIFICATIONS
A
C
B
A
C
B
Model &
Mfg. No.
Width
(A)
Depth
(B)
Height
(C)
Operating
Weight
VZN-421HC
9700770
31"
(79 cm)
9"
(23 cm)
39"
(99 cm)
67 lbs.
(31 kg)
VZN-441HC
9700772
50"
(127 cm)
9"
(23 cm)
39"
(99 cm)
83 lbs.
(38 kg)
Dimensions Electrical Ratings
Model &
Mfg. No. Volts Watts Amps Hertz
VZN-421HC
9700770 100–240 10 .08 50/60
VZN-441HC
9700772 100–240 10 .08 50/60
VZN-441HCVZN-421HC
Replacement Cartridges
Replacement Part Number
VZN-421HC L-420 Ultra Filter 7000411
VZN-441HC L-440 Ultra Filter 7000412
VZN-421HC
VZN-441HC
Chloramine Carbon
Element* 7000762
NOTE: Includes plug adaptors for US, Europe, Australia, and UK.
* Tested and verified by independent laboratory testing
Electrical Cord & Plug Configurations
Kit Model
Number Description Configuration
0012146
DC Power Supply
100 - 240 VAC
Includes the
4 plug adaptors
below NOTE: PLUG STYLE
MAY VARY
US
NEMA 1-15 (2 pin)
or NEMA 5-15
(3 Pin)
US
NEMA 1-15 (2 PIN)
or NEMA 5-15
(3 PIN)
Euro
CEE 7/16
EURO
CEE 7/16
AS/NZS
3112
AUS
(2 Pin)
AS/NZS 3112
(2 PIN)
AUS
UK
BS 1363
BS 1363
UKUK
CAUTION
All electrical connections must be in accordance with
local electrical codes and any other applicable codes.
A ground fault circuit interrupter (GFCI) must be
installed on the circuit to this system.
When installed on metallic plumbing, a properly sized
electrical bonding jumper must be installed across the
inlet and outlet pipes serving this unit.

VZN SERIES
7
P/N 1011114 Rev. J 0417
PERFORMANCE DATA SHEET
System has been tested according to NSF/ANSI Standard 42
and 53 for reduction of the substances listed below. The con-
centration of the indicated substances in water entering the
system was reduced to a concentration less than or equal to
the permissible limit for water leaving the system, as specified
in NSF/ANSI 42 or 53. While testing was performed under
standard laboratory conditions, actual performance may vary.
Performance Claims for Percent Reduction
Substance Influent
Challenge
Concentration
Reduction
Requirement
Minimum
%
Reduction
cyst1minimum
50,000/L
99.95% 99.95%
Turbidity 11 ± 1 NTU ≤ 0.5 NTU 99.1%
Particulate Class I
Particles 0.5 to <
1µm
at least 10,000
particles /mL
≥ 85% 99.5%
1based on the use of microspheres or Cryptosporium parvum oocysts
NOTE: The NSF/WQA information provided applies to the
Ultra Filter cartridge.
Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before
or after the system. Systems certified for cyst reduction
may be used on disinfected waters that may contain fil-
terable cysts.
Filter Cartridge Capacities
Maximum Operating Pressure 100 psig (690 kPa)
Maximum Operating Temperature 100°F (38°C)
Minimum Operating Temperature 40°F (4°C)
Maximum Trans Membrane Pressure 45 PSI (3.1 Bar)
pH Range 3-10
MWCO 100 kD
NSF/WQA Certified Rated Service
Flow:
VZN-421HC 7.9 gpm (30 l/m)
VZN-441HC 13 gpm (49 l/m)
System Tested and Certified by NSF
International and WQA against NSF/ANSI
Standard 42 and 53 for the reduction of:
Standard No. 42: Aesthetic Effects
Nominal Particulate Reduction Class I
Standard No. 53: Health Effects
Cyst Reduction & Turbidity Reduction
as verified and substantiated by test data.
System Tested and Certified by WQA
against NSF/ANSI Standard 372
for lead-free compliance

VZN SERIES
8P/N 1011114 Rev. J 04/17
OPERATION
Overview
The VZN system operates in two modes:
• Normal Operation Mode
• Flush Mode
During Normal Operation Mode, water enters the Inlet and
flows through the Ultra Filter before exiting the Permeate
Outlet as usable product water.
During Flush Mode, the Drain Valve opens and water enter-
ing the Inlet flushes and cleans the Ultra Filter membrane by
removing any debris collecting on the membrane wall.
The Drain Valve is only powered during Flush Mode.
NOTE: Do NOT unplug the power cord or turn off the sys-
tem during Flush Mode. If there is a power outage or the
system is unplugged, water will continue to be filtered
but the system will NOT flush. This could cause the Ultra
Filter to plug prematurely and may reduce the life of the
filter.
The flush is automated by the Universal Pulse Controller to
last 10 seconds and take place in one-hour intervals. This
interval can be changed (see Changing the Interval Setting
in the Maintenance section of this manual).
Manual Flushing
A manual flush can be activated at any time by pressing the
FLUSH button on the Universal Pulse Controller.
When the FLUSH button is pressed, the Flush LED on the
controller flashes and the Drain Valve opens for 10 seconds.
After flushing is complete, the Drain Valve will close, the Flush
LED will stop flashing and the unit will automatically return to
Normal Operation Mode.
NOTE: A manual flush will not affect the interval flush
setting.
CAUTION
Changing the flush interval may cause the Ultra Filter
to plug prematurely and may reduce the life of the filter.
Consult the factory for more information.
Ultra Filtration
Cartridge
Rinse
Ball Valve
(Manual)
Carbon Element
Housing
System
Flush
Solenoid
Valve
(Automatic)
Inlet
Ball Valve
(Manual)
Outlet
Ball Valve
(Manual)
Check Valve
Assembly
with Outlet
Pressure Gauge
Figure 1. System Components

VZN SERIES
9
P/N 1011114 Rev. J 0417
INSTALLATION
Unpacking
1. Open the large box. It should contain:
A. Plate-mounted VZN system with Ultra Filter
Cartridge installed
B. Padded envelope containing:
• Power Adaptor
• Adaptor Plugs
• Owner’s Manual
• Mounting Bracket
• Filter Wrench
• Glove and Sticker Kit
• Sanitizing T-Fitting and Plug
C. Carbon Element and Carbon Element Housing
3. Remove all packing materials and protective coverings
from the system.
4. Remove the information packet. Fill out and mail the
warranty card immediately to prevent any delay in
obtaining warranty coverage.
NOTE: If any parts are damaged, contact Antunes
Customer Service IMMEDIATELY at [phone].
Equipment Setup
GENERAL
When placing the system into service, pay attention to the
following guidelines:
• Do NOT immerse cord or plug in water.
• Keep cord away from heated surfaces.
ELECTRICAL
The line voltage must match the voltage on the specification
label. The plug on the power cord must match the appropriate
outlet. Do NOT connect the system to a switched electrical
outlet.
PLUMBING
NOTE: The system must be connected to the COLD water
line. Do NOT connect the system to the hot water line.
The VZN system uses the following connections:
System Inlet 3/4" NPT
System Outlet
(Product Water) 3/4" NPT
Drain 3/4" FNPT
Rinse Outlet 3/4" (Garden Hose or 3/4" ID Hose)
When making a plumbing connection to the system, use a
back-up wrench on the supporting plumbing. Always use a
quality, approved pipe sealant or thread seal tape on pipe
threads. Do NOT allow pipe sealant inside pipes.
Do NOT over tighten the connections. Use plastic fittings
when connecting to the plastic connections of the system.
If soldered plumbing is used, do NOT apply heat to, or near,
the filtration system. Use union (O-ring seal) connections for
ease of installation and future servicing.
SUGGESTED TOOLS AND SUPPLIES FOR INSTALLATION
The following tools and supplies are suggested to help with
the installation:
• Screwdriver • Adjustable Wrenches
• Drill with Bits • Level
• Tape Measure • Pipe Dope or Thread Seal Tape
• Two Gallon Bucket • Fresh, Unscented Liquid Chlorine
Bleach
• Pipe Wrenches • Garden Hose (for rinsing)
• Hose or pipe for drain line

VZN SERIES
10 P/N 1011114 Rev. J 04/17
CAUTION
Due to its weight and size, the VZN system MUST be
mounted with the provided Mounting Bracket. Read
the Mounting the System section before attempting to
mount the VZN system. Use care when lifting heavy
objects.
Mounting the System
NOTE: Use caution when lifting and mounting the sys-
tem. The system MUST be mounted using the provided
Mounting Bracket.
The VZN system comes with a Mounting Bracket. When
mounting the system, pay attention to the following guidelines:
• • Allow sufficient access for cartridge replacement.
VZN-421HC units should be mounted with 20 inches to
the left or right. VZN-441HC units should be mounted
with 40 inches to the left or right.
• • Mount the system near but NOT above an appropri-
ate electrical outlet.
• • Mount the system near a drain for flushing opera-
tions.
• • Mount the system before all consumable water
filtration processes.
• • Mount the system with the provided Mounting
Bracket and hardware capable of supporting 120 lbs. or
more.
• • Secure the Mounting Bracket into wall studs or with
the appropriate heavy duty mounting hardware.
The system is pre-assembled to a Back Plate. The Back Plate
has mounting holes across the bottom portion to secure the
INSTALLATION (continued)
bottom of the system to the wall. Some of the bottom mount-
ing holes may be obscured. Plan your mounting accordingly.
Follow these steps to secure the Mounting Bracket to the wall
and seat the VZN system:
1. Use a stud finder and level to attach the Mounting
Bracket securely to the wall with the appropriate
mounting hardware (Figure 2).
2. The Mounting Bracket is designed so that the VZN
system can be lifted and hung on the Mounting Bracket.
With assistance, lift the system and seat it onto the
Mounting Bracket securely (Figure 2).
3. Secure the bottom portion of the VZN system to the
wall using the holes provided. Make sure the mounting
hardware secures the system into wall studs or use the
appropriate mounting hardware.
4. Screw the Carbon Element Housing onto the Carbon
Element Head without the Carbon Element installed.
NOTE: Do NOT install the Carbon Element at this time.
The Carbon Element should only be installed after the
Ultra Filter Cartridge has been rinsed.
Secure Mounting Bracket
to wall studs using
appropriate hardware.
The system is
designed to hang from
the Mounting Bracket.
Back Plate
(holes along bottom
for additional
mounting stability)
Figure 2. Mounting the System

VZN SERIES
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P/N 1011114 Rev. J 0417
INSTALLATION (continued)
Drain Valve Connection
The drain is for flushing particle buildup out of the
system during self cleaning.
1. Cut a length of tubing (not supplied) so it reaches the
drain from the Drain Valve.
2. Connect one end of the hose to the Drain Valve with an
appropriate fitting (not supplied) (Figure 3).
3. Direct the other end of the hose to the drain (Figure 3).
When connecting the drain hose, pay attention to the follow-
ing guidelines:
• The drain line plumbing must be able support the flow
rate whenever the system flushes. This flow rate is
dependent on the inlet water pressure, inlet pipe size,
and system.
• The drain line leading out of the system must be as
short as possible and slope downwards without any
kinks or loops.
• The drain line plumbing must be positioned and
secured at least 2 inches above the drain (Figure 4).
This air gap protects the system from contamination in
the event of a backed-up drain.
• The drain used must not be blocked or restricted.
• The drain used must be as large or larger than the
drain line plumbing.
2” (5.1 cm)
minimum
2” (5.1 cm)
minimum
Floor
Drain
Secure
End
Drain Line from
System
Drain Line from
System
Secure
End
Drain
Standpipe
Figure 4. Drain Line Plumbing
Secure Hose
with Worm
Clamp
Direct Hose
to Drain
Example Drain Valve
Connection
Figure 3. Drain Valve Connection

VZN SERIES
12 P/N 1011114 Rev. J 04/17
INSTALLATION (continued)
Rinse Valve Connection
1. Obtain a length of 3/4” garden hose long enough to
reach from the Rinse Valve to the drain.
2. Install a gasket in the end of the hose (non-drain end).
3. Connect the hose to the Rinse Valve fitting. Use a back-
up wrench on the fitting if required (Figure 5).
4. Direct the other end of the hose to the drain. Secure as
necessary.
NOTE: The drain MUST accommodate a flow of up to
15 gpm.
System Inlet Connection
The System Inlet has a 3/4” NPT male thread at the Inlet
Valve (Figure 6). Do NOT overtighten fittings as this could
cause the plastic ball valve to crack.
Use plastic fittings and a pipe thread sealant approved for use
on PVC fittings when making connections.
CAUTION
Do NOT use the Rinse Valve for consumable water.
Inlet Water Plumbing
The "T" Fitting with plug (supplied) should be installed at the
System Inlet. This fitting will be used for sanitizing the system
and downstream plumbing (Figure 6a).
Before connecting the fitting to the System Inlet, the plumb-
ing to the system must be flushed clear of all debris. Hold a
bucket at the inlet water line and slowly open the Inlet Water
Valve. Allow the pipe to flush until all debris is removed.
Filtered Water Permeate Outlet Connection
The System Outlet has a 3/4” NPT male thread at the Outlet
Valve (Figure 6). Do NOT overtighten fittings as this could
cause the plastic ball valve to crack.
Use plastic fittings and a pipe thread sealant approved for use
on PVC fittings when making connections.
3/4”
Garden
Hose
Connection
3/4”
Garden Hose
(not supplied)
directed
to drain
Rinse Valve Connection
Inlet
Ball Valve
(Manual)
Outlet
Ball Valve
(Manual)
Figure 5. Rinse Valve Connection
Figure 6. Inlet and Outlet Connections
Inlet Ball
Valve
Sanitation
Plug
T-Fitting
(not supplied)
Inlet
Figure 6a. Installing a T-Fitting for Sanitizing

VZN SERIES
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P/N 1011114 Rev. J 0417
INSTALLATION (continued)
Starting the Controller
1. Select the proper AC plug for your electrical outlet and
install it onto the power supply.
2. Plug the appropriate end of the power cord into the
controller.
3. Plug the other end of the power cord into the electrical
outlet. The LEDs on the controller will light up.
4. The controller automatically enters Flush Mode and the
Flush LED starts to flash.
5. When flushing is complete, the Flush LED will stop
flashing and one or more LEDs will remain lit, indicating
the unit has power and which interval is selected in the
controller.
Rinsing the Ultra Filter Cartridge
The Ultra Filter Cartridge comes pre-installed in the VZN
system. The Ultra Filter Cartridge must be rinsed before the
system is used to remove any air and protective solution.
NOTE: Ultra Filter Cartridge must be rinsed to drain
before use. Rinsing to drain removes storage solution
and air. Do NOT rinse into carbon if present. Carbon life
and/or performance may be affected.
NOTE: Make sure the Carbon Element and TAC Cartridge,
if present, are NOT installed. These should only be
installed after the Ultra Filter Cartridge has been rinsed.
1. Direct water from the Rinse Ball Valve to a drain.
2. Close the Outlet Ball Valve.
3. Close the Inlet Ball Valve.
4. Open the Rinse Ball Valve.
5. Slowly turn on the water supply to the VZN system.
6. Slowly open the Inlet Ball Valve. Air and water will come
out of the Rinse Ball Valve.
7. Press the FLUSH button. The Drain Valve will open and
air and water will come out of the drain line. Repeat six
times to ensure all air and storage solution are flushed
out of the Ultra Filter Cartridge.
8. Continue to allow water to run at full flow out of the
Rinse Ball Valve for at least 15 minutes.
9. After 15 minutes, close the Rinse Ball Valve and allow
the system to sit for 15 minutes without any water
flow to release any trapped air from the Ultra Filter
Cartridge.
10. Inspect the unit for any leaks, repairing as needed.
11. After 15 minutes, open the Rinse Ball Valve and wait for
15 more minutes to flush out any remaining air.
12. Close the Rinse Ball Valve and disconnect the garden
hose.
13. Press the FLUSH button to open the Drain Valve.
Repeat six times to ensure any remaining air is flushed
out of the system.
14. Open the closest downstream tap or faucet.
15. Slowly open the Outlet Ball Valve and allow water to run
through the system and out the faucet for five minutes.
Installing a Bypass
It is recommended that an optional bypass be installed to help
with replacing cartridges and servicing the system. Installation
of a bypass can be done easily as the Inlet and Outlet Ball
Valves are already installed.
1. Install tees on the end of the plumbing leading to the
Inlet and Outlet Ball Valves.
2. Connect the two tees by installing plumbing and a fully
ported (preferably 3/4”) Ball Valve.
3. When the system is in use, open the Inlet and Outlet
Ball Valves and close the Bypass Ball Valve.
4. When servicing is needed, close the Inlet and Outlet Ball
Valves and open the Bypass Ball Valve.
Water
Flow
Inlet Ball
Valve
(Manual)
Fully
Ported
Ball Valve
Tee
Water
Flow
Outlet Ball
Valve
(Manual)
Figure 7. Install Bypass

VZN SERIES
14 P/N 1011114 Rev. J 04/17
Installing and Rinsing the Carbon Element
The Carbon Element MUST be rinsed before using the
system the first time.
1. Install the new Carbon Element into the Carbon
Element Housing.
2. Screw the Carbon Element Housing (containing the
Carbon Element) into place on the Carbon Element
Head. The housing will come to a hard stop at the end
of the thread. Use a Filter Wrench if necessary.
NOTE: Do NOT overtighten the Carbon Element Housing.
3. Direct water from the Rinse Ball Valve to a drain.
4. Open the Rinse Ball Valve and close the Outlet Ball
Valve.
5. Turn on the water to the system by slowly opening the
Inlet Ball Valve.
6. Allow water to flow through the Carbon Element and
Carbon Element Housing to flush out trapped air and
any debris that may be present.
7. To help remove trapped air from the Carbon Element
Housing, press the RED Pressure Relief Button on the
top of the housing until water just begins to come out.
8. Flush the Carbon Element for at least 10 minutes.
NOTE: Do NOT consume water used during this process.
9. When the rinsing is complete, close the Rinse Ball
Valve and open the Outlet Ball Valve.
10. The system is now ready for use.
INSTALLATION (continued)
Flushing the Outlet Plumbing
To ensure that the highest quality water is produced from the
system, the plumbing leading from the filter system must be
flushed clear of all debris after the system is hooked up. After
making the connection to the outlet of the filter system, open
the faucet or tap closest to the filter system, then slowly open
the Inlet Water Valve. Allow the pipe to flush until all debris is
removed.
Sanitizing the System and Lines
The plumbing must be sanitized to eliminate possible contam-
ination that may have occurred during the installation process.
One ounce (30 ml) of liquid chlorine bleach (regular bleach,
unscented 5.25 % - 6 % sodium hypochlorite) or Kay-5
sanitizer solution (Sodium Dichloro-s-Triazinetrione Dihydrate,
6%) or equivalent can be used to sanitize the plumbing.
The Kay-5 sanitizer solution is made by dissolving a 1 oz.
packet of Kay-5 powder in 2 oz. (60 ml) of clean warm water.
This can be done by removing 1 inch from the top of the
Kay-5 packet and adding the 2 oz. of warm water to the pack-
et. Mix with a coffee stirrer to dissolve. When added to the
system, this will create a 60-100 ppm chlorine solution.
NOTE: Follow the handling and safety instructions
supplied with the sanitizer.
NOTE: If installed, remove the Carbon Element and TAC
Cartridge from the system BEFORE Sanitizing.
1. Follow the steps in the Rinsing the Ultra Filter
Cartridge in the Installation section of this manual.
2. Turn off the water to the system.
3. Open the faucet or tap closest downstream to the
system.
4. Allow the system and plumbing to drain.
5. Remove the plug installed in the sanitizing "T" fitting at
the inlet of the system. Allow the water to drain out of
the system.
6. Pour the sanitizer into the inlet sanitation fitting using a
cup or funnel. Be careful not to spill the sanitizer onto
clothing or skin.
7. Reattach the plug on the sanitation fitting.
8. Slowly turn on the water supply to the system.
9. Allow water to flow through the system and out of the
open faucet or tap until the smell of sanitizer is present.
10. Close the faucet or tap.
11. Let the system stand without water flow for at least 15
minutes to allow the sanitizer to sanitize the pipes.
12. After 15 minutes without water flow, open the faucet or
tap.
13. Allow water to flow through the system until the
presence of sanitizer is gone.
14. Open all other faucets and taps in line with the system
to flush any remaining sanitizer from the plumbing.
15. Close all faucets and taps.

VZN SERIES
15
P/N 1011114 Rev. J 0417
MAINTENANCE
Replacing the Ultra Filter Cartridge
NOTE: Always install new Carbon Element after replacing
the Ultra Filter Cartridge.
1. Turn off water to the system by closing the Inlet Ball
Valve.
2. Press the FLUSH button to flush the system and relieve
pressure. Repeat several times to ensure permeate
tank is empty.
3. Locate the long hooked tubing on the right and discon-
nect the long end from the tee by pushing the collet
squarely against the face of the fitting.
4. With the collet pushed in place, pull the tubing from the
fitting with your right hand.
NOTE: Water may drain from the tubing as it is removed.
NOTE: Make sure there is enough room next to the system
to remove the cartridge.
5. Remove the Snap Ring (Figure 8) from the Ultra Filter
Housing. Grab the raised lug with a pair of pliers and
pull towards the center of the End Cap and away. The
Snap Ring should lift out of its groove.
6. Remove the End Cap, End Cap O-Ring, and Cartridge
(Figure 8) from the housing.
NOTE: If the Cartridge does not easily come out of the
Housing, remove the opposite End Cap for assistance
during Step 5.
7. Inspect the Large End Cap O-rings and End Cap O-ring
for nicks or cuts. Replace as needed.
8. Lubricate all O-rings with a food-grade silicone lubri-
cant. Apply a light coating of lubricant to the inside
center tube at both ends of the new cartridge.
9. Record the serial number of the new cartridge. The
cartridge serial number is engraved on one end of the
outer tube (for example: 05K 12013).
10. Install the End Cap O-ring on the End Cap and insert
the Large End Cap into the end of the new cartridge.
11. Position the new cartridge and End Cap at the housing
and gently insert into the housing.
12. Press the End Cap into position until it is fully seated
and the Snap Ring groove is visible.
13. Install the Snap Ring by guiding the non-lugged end
into the groove first, pushing outward and working
around the ring until it snaps into place.
NOTE: Make sure that the Snap Ring is fully seated
before turning the water on.
14. Reattach the tubing that was removed in Steps 3 and 4.
Be sure the tubing is pushed past the O-ring.
NOTE: Make sure the fitting is completely inserted onto
the tubing past the O-ring. A loose connection results in
leaking at the point of connection.
15. Rinse the new Ultra Filter Cartridge before placing the
system back into operation. Follow the Rinsing the
Ultra Filter Cartridge and Sanitizing the System
and Lines procedures in the Installation section of this
manual to complete the cartridge change.
16. When rinsing is complete, repressurize the system.
Figure 8. Replacing the Ultra Filter Cartridge
Snap Ring
Ultra Filter
Housing
Ultra Filter
Cartridge
End Cap
O-Rings
End Cap
Snap Ring
End Cap
End Cap
O-Rings
Cartridge
O-Ring
Cartridge
O-Ring

VZN SERIES
16 P/N 1011114 Rev. J 04/17
Rinsing and Replacing the Carbon Element
NOTE: Remove the TAC Cartridge Element, if present,
and re-attach the TAC Housing before proceeding.
1. Turn off the water to the system by closing the Inlet Ball
Valve and Outlet Ball Valve.
2. Open the Rinse Ball Valve and allow the system to
drain to ensure the permeate tank is empty.
3. Press and hold the RED Pressure Relief Button on the
top of each of the Carbon Element Housing to lower the
water level inside the housings by 2 to 3 inches.
4. Remove the Carbon Element Housing (Figure 9).
5. Empty any water into a drain and discard the old
Carbon Element.
6. Inspect the O-ring on the Carbon Element Housing
(Figure 9). Replace the O-ring if it is cracked, twisted,
or missing.
7. Lubricate the O-ring with an approved food grade
lubricant and install into the Carbon Element Housing.
8. Install the new Carbon Elements into the Carbon
Element Housing.
NOTE: Make sure the Gasket remains in place in the
recessed grooves on both ends of the Carbon Element.
9. Screw the Carbon Element Housing (containing the
Carbon Element) into place on the Carbon Element
Head. The Housing will come to a hard stop at the end
of the thread. Use a Filter Wrench if necessary.
NOTE: Do NOT overtighten the Carbon Element Housing.
10. Direct water from the Rinse Ball Valve to a drain.
NOTE: Direct the Rinse Ball Valve to a drain. Do NOT use
the water resulting from the flush procedure.
11. Open the Rinse Ball Valve. Turn on the water to the
system by slowly opening the Inlet Ball Valve. Allow
water to flow through the Carbon Element and Housing.
This clears out trapped air and any carbon fines.
12. To help remove trapped air from the Carbon Element
Housing, press the RED Pressure Relief button on the
top of the Housing until water just begins to come out.
13. Flush the Carbon Element for at least 10 minutes.
NOTE: Do NOT consume the water used for rinsing the
Carbon Element.
14. Re-install the TAC Cartridge Element into the TAC
Housing with the arrow on the cartridge pointing up.
Reattach the TAC Housing to the system.
15. When the rinsing is complete, close the Rinse Ball
Valve and open the Outlet Ball Valve.
16. The system is now ready for use.
O-Ring
Carbon
Element
Housing
Carbon
Element
Carbon
Element
Head
RED Pressure
Relief Button
Gasket
MAINTENANCE (continued)
Figure 9. Carbon Element
System Sanitization
The system and downstream plumbing should be sanitized
every six months. When necessary, follow the procedure in
Sanitizing the System and Lines in the Installation section
of this manual.

VZN SERIES
17
P/N 1011114 Rev. J 0417
MAINTENANCE (continued)
Changing the Interval Setting
Resetting the Timer Program
During the normal operation, the system will flush accord-
ing to the set interval. It is possible the system will flush at a
time of high water use. If this poses a problem, the controller
can be reset. Unplug the power supply, wait for 5 seconds,
and then plug the power supply in. When power is restored
to the controller, it will automatically enter Flush Mode. The
controller will then begin timing from the point when power is
restored based on the interval setting selected.
Flush
Interval Button Hold Time Button LED
Flush
LED
15 minutes A10 seconds On On
30 minutes B10 seconds On On
45 minutes C10 seconds On On
1 hour A5 seconds On Off
4 hour B5 seconds On Off
6 hours C5 seconds On Off
12 hours D5 seconds On Off
24 hours D10 seconds On On
CAUTION
Changing the flush interval may cause the Ultra Filter
to plug prematurely and may reduce the life of the filter.
Consult the factory for more information.
Though not recommended, the interval setting on the
Universal Pulse Controller can be changed. If the setting must
be changed, use the chart below. Press and hold the corre-
sponding button. After 5 seconds, the Button LED will turn on.
After 10 seconds, the Flush LED will also turn on.
Figure 10. Universal Pulse Controller
Semi-Annual Tasks
Check Permeate Tank Air Pre-Charge
It is recommended the permeate tank air charge be
checked every six months.
Tools and supplies required:
• Air Pressure Gauge, 5‒40 psi range (0.3‒2.7 bar)
with tire valve (Schrader Valve) connection
CAUTION
Air pre-charge should only be checked and adjusted
under zero system pressure. The system must be
depressurized before checking the tank pre-charge.
Do NOT adjust the tank air pre-charge with the system
under pressure.
CAUTION
Be careful when adding air to the tank. Do NOT add too
much air pressure to the tank.
• Source of compressed air (manual bicycle tire
pump or air compressor)
1. Refer to Figure 1. Depressurize the system by
closing the Inlet and Outlet Valves and opening
the Rinse Valve. Make sure the Permeate Tank is
fully drained.
2. Unscrew the protective cap from the air valve on
the tank.
3. Use the pressure gauge to check the tank pre-
charge for pressure.
NOTE: If any water comes out the air valve, the tank
bladder has ruptured and the tank needs to be
replaced.
4. The permeate tank should have a pressure of 28-
31 PSI.
• To add pressure to the permeate tank, use a
manual bicycle tire pump or other source of
compressed air.
• To release pressure from the permeate tank,
press the center pin on the air inlet valve.
5. Once the permeate tank is at 28-31 PSI, replace
the protective cap on the air valve.
6. Pressurize system by closing the Rinse Valve and
opening the Inlet and Outlet Valves.

VZN SERIES
18 P/N 1011114 Rev. J 04/17
TROUBLESHOOTING
Problem Possible Cause Corrective Action
Unit does not have power.
The power cord is not plugged into the
appropriate outlet or control box. Plug power cord into the appropriate outlet.
The unit is plugged into a switched
electrical outlet. Plug the power cord into an unswitched outlet.
Universal Pulse Controller is inoperable. Contact your maintenance person or Authorized
Service Agency.
Transformer is defective.
No water comes out of the
filter system.
Inlet/Outlet Ball Valves closed. Open the Inlet/Outlet Ball Valves.
System depressurized. Pressurize system.
Drain Valve is stuck open. Clean, rebuild, and/or replace the Drain Valve.
Rinse Ball Valve is open. Close the Rinse Ball Valve.
The system may be in a flush cycle. Wait for the flush cycle to end.
Inlet Strainer (if installed) is plugged. Clean or replace Inlet Strainer
Ultra Filtration Cartridge is plugged. Replace Ultra Filtration Cartridge.
Carbon Element is plugged. Replace Carbon Element.
Low water flow comes out of the
filter system.
See above. See above.
The inlet water pressure is too low. Boost the inlet water pressure.
The outlet check valve may be plugged
or defective.
Clean or replace the outlet check valve
assembly.
The inlet flow restrictor may be plugged. Clean or replace the inlet flow restrictor.
Water tastes bad.
Carbon Element need replacing. Replace Carbon Element.
Storage/shipping solution not completely
rinsed out of the system.
Rinse the system for a longer period of time;
replace Carbon Element.
Biological growth in pipes. Sanitize plumbing.
Water condition changed. Consider installing additional filtration.
Broken capillaries in Ultra Filter
Cartridge. Replace Ultra Filtration Cartridge.
Flush runs continuously.
Drain Valve stuck open. Clean, rebuild, or replace the Drain Valve.
Controller sending continuous signals to
valve. Replace the controller.
Flush occurs at a time of high
water usage.
The controller interval is set incorrectly or
setting was lost due to power loss. Set interval.
Water splashes at drain during
flush.
Drain line not positioned properly. Reposition the end of the drain line.
Drain not capable of handling high flow
rate. Clean drain; find alternate drain.
Water leaks at ends of the Ultra
Filter cartridge after changing
cartridge.
O-ring not lubricated. Lubricate O-ring with food grade lubricant.
O-ring is split, cut, or twisted. Replace O-ring.
Water leaks from Carbon
Element.
O-ring not lubricated. Lubricate O-ring with food grade lubricant.
O-ring is split, cut, or twisted. Replace O-ring.
Water leaks from system
fitting or connection.
Fitting broken or loose. Tighten or replace the fitting.
Not enough pipe thread sealant used. Redo the fitting with the proper amount of seal-
ant.

VZN SERIES
19
P/N 1011114 Rev. J 0417
REPLACEMENT PARTS
30
33
25
1
2
36
3
31
12
28
20
14
14
29
16
32
35
14
15
19
4
5
6
7
8
9
11
17
21
13
26
27
18
20
21
22
23
24
9
8
10
10
34
VZN-421HC Systems

VZN SERIES
20 P/N 1011114 Rev. J 04/17
30
33
25
1
2
3
31
34
12
28
20
14
14
29
16
32
14
15
19
4
5
6
7
8
9
11
17
21
13
26
27
18
20
21
22
23
24
9
8
10
10
36
35
REPLACEMENT PARTS (continued)
VZN-441HC Systems