Hoshizaki ROX-20TB2-U User manual

Hoshizaki
“A Superior Degree
of Reliability”
www.hoshizaki.com
Model
ROX-20TB2-U
Water Electrolyzer
Hoshizaki America, Inc.
Issued: 5-1-2012
INSTALLATION MANUAL

1
IMPORTANT
Only qualified service technicians should install, service and maintain the
product. No installation, service or maintenance should be undertaken until
the technician has thoroughly read this Instruction Manual. Likewise, the
owner/manager should not proceed to operate the product until the installer
has instructed them on its proper operation. Failure to install, operate, and
maintain the equipment in accordance with this manual may adversely affect
safety, performance, component life, and warranty coverage.
Hoshizaki provides this manual primarily to assist qualified service technicians in the
installation, maintenance, and service of the product.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call, write, or send an e-mail message to the Hoshizaki Technical
Support Department for assistance.
HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City, GA 30269
Attn: Hoshizaki Technical Support Department
Phone: [phone] Technical Support
[phone]
Fax: [phone]
[phone]
E-mail: [email protected]
Web Site: www.hoshizaki.com
NOTE: To expedite assistance, all correspondence/communication MUST include the
following information:
• Model Number
• Serial Number
• Complete and detailed explanation of the problem.

2
IMPORTANT
This manual should be read carefully before the product is installed and
operated. Only qualified service technicians should install, service, and
maintain the product. Read the warnings contained in this booklet carefully as
they give important information regarding safety. Please retain this booklet for
any further reference that may be necessary.
CONTENTS PAGE
Important Safety Information-------------------------------------------------------------------------3
1. CHECKS BEFORE INSTALLATION------------------------------------------------------------4
2. LOCATION --------------------------------------------------------------------------------------------4
3. ELECTRICAL CONNECTION--------------------------------------------------------------------5
4. INSTALLATION OF WATER SOFTENER (SOLD SEPARATELY) AND
WATER FILTER (SOLD SEPARATELY) -------------------------------------------------------7
[a] CHECKS BEFORE INSTALLATION--------------------------------------------------------7
[b] LOCATION----------------------------------------------------------------------------------------7
[c] SET UP --------------------------------------------------------------------------------------------7
[d] ELECTRICAL CONNECTION----------------------------------------------------------------7
[e] WATER SUPPLYAND PLUMBING CONNECTIONS----------------------------------8
5. INSTALLATION OF REMOTE CONTROLLER (ACCESSORY)-------------------------8
[a] CHECKS BEFORE INSTALLATION--------------------------------------------------------8
[b] LOCATION----------------------------------------------------------------------------------------9
[c] SET UP --------------------------------------------------------------------------------------------9
[d] ELECTRICAL CONNECTION-------------------------------------------------------------- 11
6. INSTALLATION OF WATER TANK FLOAT SWITCHES (OPTION) AND
WATER TANK (SOLD SEPARATELY)-------------------------------------------------------- 11
[a] CHECKS BEFORE INSTALLATION------------------------------------------------------12
[b] LOCATION--------------------------------------------------------------------------------------12
[c] SET UP ------------------------------------------------------------------------------------------13
[d] ELECTRICAL CONNECTION--------------------------------------------------------------14
7. INSTALLATION OF OUTLET VALVES (OPTION)-----------------------------------------14
[a] CHECKS BEFORE INSTALLATION------------------------------------------------------15
[b] LOCATION--------------------------------------------------------------------------------------15
[c] SET UP ------------------------------------------------------------------------------------------15
8. WATER SUPPLYAND PLUMBING CONNECTIONS------------------------------------16
[a] UNIT WITH REMOTE CONTROLLER, WATER SOFTENER &
WATER FILTER--------------------------------------------------------------------------------16
[b] UNIT WITH WATER TANK, WATER SOFTENER & WATER FILTER-----------19
9. ADJUSTMENT -------------------------------------------------------------------------------------23
[a] OPERATION MODE--------------------------------------------------------------------------23
[b] CURRENT, VOLTAGE, PORTION CONTROL DISPENSING TIME,
HANDWASHING TIME ----------------------------------------------------------------------24
10. FINAL CHECK LIST-------------------------------------------------------------------------------26

3
Important Safety Information
Throughout this manual, notices appear to bring your attention to situations which could
result in death, serious injury, or damage to the unit.
WARNING Indicates a hazardous situation which could result in death or
serious injury.
NOTICE Indicates a situation which could result in damage to the unit or
property.
IMPORTANT Indicates important information about the use and care of the
unit.
In the context of this manual, the term "sanitizing water" refers to acidic water and
"cleaning water" refers to alkaline water.
WARNING
This product should be destined only to the use for which it has been
expressly conceived. Any other use should be considered improper and
therefore dangerous. The manufacturer cannot be held responsible for injury
or damage resulting from improper, incorrect, and unreasonable use.
To reduce the risk of death, electric shock, serious injury, or fire, follow
basic precautions including the following:
• Only qualified service technicians should install and service the unit.
• This unit must be installed in accordance with applicable national, state, and
local codes and regulations.
• This unit requires an independent power supply. See the nameplate for
proper voltage and breaker/fuse size. Failure to use a proper breaker or fuse
can result in a tripped breaker, blown fuses, or damage to existing wiring.
This could lead to heat generation or fire.
• THIS APPLIANCE MUST BE GROUNDED. This appliance is equipped
with a NEMA 5-15 three-prong grounding plug to reduce the risk of potential
shock hazards. It must be plugged into a properly grounded, independent
3-prong wall outlet. If the outlet is a 2-prong outlet, it is your personal
responsibility to have a qualified electrician replace it with a properly
grounded, independent 3-prong wall outlet. Do not remove the ground prong
from the power cord and do not use an adapter plug. Failure to follow these
instructions may result in death, electric shock, or fire.
• Turn off the power switch (ground fault circuit interrupter) and unplug the
unit before servicing.
• Do not make any alterations to the unit. Alterations could result in electric
shock, injury, fire, or damage to the unit.
• This unit is not intended for outdoor use (including under canopy). Exposure
to rain may cause electric leak or shock. Direct sunlight can damage the
plastic tank exterior, resulting in cracks and water leaks.

4
• Ensure adequate ventilation. Hydrogen gas or chlorine gas may cause
health problems.
• Do not mix electrolyzed water with other chemicals. Mixture with acidic
or chlorine-based chemicals can cause chlorine gas, resulting in health
problems.
• Do not use a large volume of sanitizing water only. Generation of a
large amount of chlorine gas may cause health problems or corrosion of
surrounding equipment.
• Do not use a flame near a container or tank holding electrolyzed water.
Hydrogen gas from cleaning water may cause ignition.
1. CHECKS BEFORE INSTALLATION
NOTICE
1. Remove shipping carton and tape(s). If packaging material is left in the
electrolyzer, it will not work properly.
2. Use potable water. If water other than potable water is used, it may clog
pipes, cause poor performance, etc.
3. Purchase the water tank float switch (option).
4. Install a water softener and water filter (sold separately) on the electrolyzer to
improve machine performance and prevent electrolytic cell damage, etc.
1) Be sure not to damage the panels when installing the electrolyzer.
2) Remove the package containing the accessories.
3) See the nameplate on the rear panel and check that the voltage supplied corresponds
with the voltage specified on the nameplate.
2. LOCATION
WARNING
1. This electrolyzer is not intended for outdoor use (including under canopy).
Exposure to rain may cause electric leak or shock.
2. Normal operating ambient temperature should be within 40°F to 95°F (5°C to
35°C); Normal operating water temperature should be within 40°F to 85°F (5°C
to +0°C). Operation of the electrolyzer for extended periods outside of these

5
normal temperature ranges may affect performance.
3. Ensure adequate ventilation. Hydrogen gas or chlorine gas may cause health
problems.
4. Do not install the unit where exposed to humidity or splashing water.
Reduction in insulation property may cause an electric leak or shock.
Locations should be at least 6” (15 cm) above the floor to avoid splashing
water during kitchen cleaning operations.
NOTICE
1. To prevent damage to the unit, do not move the unit with the door open.
2. The unit should not be submerged in water or become wet.
3. Use glass, plastic or stainless steel containers for electrolyzed water.
Sanitizing water may corrode metal.
For best operating results:
* The electrolyzer should not be located next to ovens, grills or
other high heat producing equipment.
* Location should provide a firm and level foundation for the
equipment.
* Do not tilt the unit more than 0.2” (5 mm).
* Allow 2” (5 cm) clearance at rear, sides and top
and 10” (26 cm) at front for proper performance
and ease of maintenance and/or service.
* Install the unit in a well-ventilated area. Use fans
with diameter over 6” (15 cm) [standard air flow
rate: 270 ft3/min (450 m3/h)] if necessary.
3. ELECTRICAL CONNECTION
WARNING
1. Electrical connection must meet national, state, and local electrical code
requirements. Failure to meet these code requirements could result in death,
electric shock, serious injury, fire, or severe damage to equipment.
2” (5cm)
2” (5cm)
2” (5cm) not to
crush hose 2” (5cm) not to crush salt hose
10” (26cm)
to open/close door
Max. 0.2”
(5mm)

6
2. This unit requires an independent power supply. See the nameplate for
proper voltage and breaker/fuse size. Failure to use a proper breaker or fuse
can result in a tripped breaker, blown fuse, damage to existing wiring, or
component failure. This could lead to heat generation or fire.
3. THIS UNIT MUST BE GROUNDED: This unit is equipped with a 3-prong
grounding plug to reduce the risk of potential shock hazards. It must be
plugged into a properly grounded, independent 3-prong wall outlet. If the
outlet is a 2-prong outlet, it is your personal responsibility to have a qualified
electrician replace it with a properly grounded, independent 3-prong wall
outlet. Do not remove the ground prong from the power cord and do not
use an adapter plug. Failure to follow these instructions may result in death,
electric shock, or fire.
4. Do not use an extension cord.
5. To reduce the risk of electric shock, make sure the power switch (ground fault
circuit interrupter) is in the “OFF” position before plugging in or unplugging
the unit.
6. To reduce the risk of electric shock, do not touch the power switch (ground
fault circuit interrupter) or plug with damp hands.
7. Do not use a unit with a damaged power cord. The power cord should not be
altered, jerked, bundled, weighed down, pinched, or tangled. Such actions
could result in electric shock or fire. To unplug the unit, be sure to pull the
plug, not the cord, and do not jerk the cord.
8. The GREEN ground wire in the factory-installed power cord is connected to
a screw on the gear motor base where the cord enters the unit. If it becomes
necessary to remove or replace the power cord, be sure to connect the power
cord’s ground wire to this screw upon reattachment.
9. The electrolyzer requires a ground that meets the national and local electrical
code requirements. To prevent possible electrical shock to individuals or
extensive damage to equipment, plug the electrolyzer only into a properly
grounded electrical outlet.
NOTICE
The maximum allowable voltage variation should not exceed ±10 percent of the
rated voltage. Operation of the unit outside of this range may cause damage to
the unit or reduction of the performance.
* Usually an electrical permit and services of a licensed electrician are required.

7
4. INSTALLATION OF WATER SOFTENER (SOLD SEPARATELY) AND
WATER FILTER (SOLD SEPARATELY)
[a] CHECKS BEFORE INSTALLATION
1) Unpack and remove shipping carton, tape(s) and other packaging material(s).
2) Check that all the necessary accessories are included.
3) Follow the instruction manual for the water softener and the water filter.
[b] LOCATION
* Install the water softener and water filter under the same ambient temperature and water
temperature conditions as the electrolyzer.
* Follow the instruction manual for the water softener and the water filter.
[c] SET UP
1) Install the valves and pipes following the instruction manual for the water softener and
the water filter.
2) Install a water pressure gauge on the pipe of the primary side of the water softener and
secondary side of the water filter.
[d] ELECTRICAL CONNECTION
WARNING
1. This softener must have a separate power supply or receptacle of proper
capacity. Branching off the power cord, using an extension cord or sharing
a single power supply with other appliances may result in an electric shock,
heat generation or fire.
2. The water softener requires a ground that meets the national and local
electrical code requirements. To prevent possible electrical shock to
individuals or extensive damage to equipment, plug the water softener only
into a properly grounded electrical outlet.

8
NOTICE
The maximum allowable voltage variation should not exceed ±10 percent of the
rated voltage. Operation of the unit outside of this range may cause damage to
the unit or reduction of the performance.
* Usually an electrical permit and services of a licensed electrician are required.
[e] WATER SUPPLY AND PLUMBING CONNECTIONS
NOTICE
Do not run the water softener and the water filter until the proper water pressure
is reached.
* For piping of the water softener and water filter, follow the instruction manual for the
water softener and the water filter.
* Adjust water pressure so that discharge pressure after pipes are connected will be within
22 - 115PSIG (0.15 - 0.78MPa). Also adjust water supply pressure so that it will be within
the specified value in the specifications for the water softener and the water filter.
* For air gap between the drain pipe ends or hose ends and a sink or floor drain, follow the
instruction manual for the water softener.
* Be sure to flush out a new water softener thoroughly to a sink or drain before connecting
it to the electrolyzer.
* A plumbing permit and services of a licensed plumber may be required in some areas.
5. INSTALLATION OF REMOTE CONTROLLER (ACCESSORY)
[a] CHECKS BEFORE INSTALLATION
1) Unpack and remove shipping carton, tape(s) and other packaging material(s).
2) Check that all the necessary accessories are included.
3) Check that the remote controller and electrolyzer are installed so that the cables and
connection hoses of the remote controller can reach the electrolyzer.
4) Check if there is any serious damage, broken cable, etc.

9
[b] LOCATION
WARNING
1. This remote controller is not intended for outdoor use. Normal operating
ambient temperature should be within 40°F to 95°F (5°C to 35°C); Normal
operating water temperature should be within 40°F to 85°F (5°C to 30°C).
Operation of the remote controller for extended periods outside of these
normal temperature ranges may affect performance.
2. Do not install the remote controller where exposed to humidity or splashing
water. Reduction in insulation property may cause an electric leak or shock.
3. Install an adequate ventilating system. Hydrogen gas or chlorine gas may
cause health problems.
NOTICE
1. Avoid a site where dripping is not allowed. Condensation may form on the
exterior in high humidity and could drip onto the floor.
2. Use glass, plastic or stainless steel containers for electrolyzed water.
Sanitizing water may corrode metal.
For best operating results:
* The remote controller should not be located next to ovens, grills or other high heat
producing equipment.
* Location should provide a firm and level foundation for the equipment.
* Install the unit in a well-ventilated area. Use fans with diameter over 6” (15 cm) [standard
air flow rate: 270 ft3/min (450 m3/h)] if necessary.
[c] SET UP
NOTICE
Use the accessory braided hoses, connectors and gaskets for electrolyzed
water piping. Other materials may cause corrosion and water leakage.

10
1) Attach the PVC braided hose to the connector with
the clamp.
2) Attach the connectors to the electrolyzer with the
gaskets between the connectors and the electrolyzer.
Make sure to check the connection locations for the
sanitizing and cleaning water hoses.
3) Drive M6 anchor bolts into the wall or attach a sheet
metal part to the wall to attach the bracket. The
space between bracket holes is 7” (18 cm) and there
are two 0.3” (8 mm) holes.
4) Attach the PVC braided hoses in step 1) to the part
[2] in the illustration. Secure the remote controller to
the bracket with M4 x 8 tapping screws (accessory)
in the order illustrated.
5) After installing the remote controller on the wall,
attach the electrolyzed water pipes to the remote
controller in the order illustrated. Make sure that
there are gaskets on the end of the pipes.
Note: The vertical height of the hoses for electrolyzed
water should be a maximum of 80” (2 m) and
the total piping length should be within the range
that the PVC braided hose can reach. The
electrolyzed water may not be able to flow or the
flow rate may not be maintained if the total piping
length is outside this range. Adjust the pipe
length using the PVC braided hose to maintain
the proper performance of the electrolyzed
water. Install the remote controller so that the
outlets are located above the unit. The difference
in the gas amount between sanitizing water and
cleaning water may change the flow rate balance
and cause poor performance.
Install the remote
controller so that the
outlets are located
above the unit.
The vertical height and
total piping length should
be within the range that
the PVC braided hose can
reach.
Gasket Cleaning
Water Hose
Sanitizing
Water Hose
Electrolyzer
Attach
Braided Hose
[3] [2] [1]
[3]
[2]
[1]
[4]
[5]
[6]
O-ring Gasket
Gasket
PVC Braided Hose
Clamp
Connector

11
Unit
Side Panel
Remote
Controller
Control Box
Cable
Cable
Base
Bushing
6) Attach the caution label (accessory) in readily visible position near the remote controller.
[d] ELECTRICAL CONNECTION
* Usually an electrical permit and services of a
licensed electrician are required.
1) Remove the three screws securing the side
panel.
2) Connect the cable connector on the remote
controller with the connector on the control
box.
3) Attach the bushing on the cable to the rear
panel.
4) Replace the side panel in the original position
with screws.
6. INSTALLATION OF WATER TANK FLOAT SWITCHES (OPTION) AND
WATER TANK (SOLD SEPARATELY)
WARNING
1. This appliance should be serviced only by qualified service personnel to
reduce the risk of death, electric shock, serious injury, or fire.
2. Turn off the power switch (ground fault interrupter) and unplug the appliance
before installing this kit.

12
[a] CHECKS BEFORE INSTALLATION
1) Unpack and remove shipping carton, tape(s) and other packaging material(s).
2) Check that all the necessary accessories are included.
3) Check that the electrolyzer and water tank are installed so that the cables of the float
switches can reach from the electrolyzer to the water tank.
4) A stand may be needed to support the water tank depending on the application. Check if
the floor can support the weight of the water tank when it is full.
5) The water tank should have a cover with a small ventilation opening to the atmosphere.
The water tank should not be exposed to direct sunlight.
6) To keep the water tank static-free, it is recommended to use a black-colored tank.
[b] LOCATION
WARNING
1. These float switches and water tank are not intended for outdoor use. Normal
operating ambient temperature should be within +40°F to 95°F (+5°C to
+35°C); Normal operating water temperature should be within +40°F to 85°F
(+5°C to +30°C). Operation of the float switches and water tank for extended
periods outside of these normal temperature ranges may affect performance.
2. Do not install the float switches and water tank where exposed to humidity or
splashing water. Reduction in insulation property may cause an electric leak
or shock.
3. Install an adequate ventilating system. Hydrogen gas or chlorine gas may
cause health problems.
NOTICE
1. Avoid a site where dripping is not allowed. Condensation may form on the
exterior in high humidity and could drip onto the floor.
2. Use glass, plastic or stainless steel containers for electrolyzed water.
Sanitizing water may corrode metal.

13
For best operating results:
* The water tank should not be located next to ovens, grills or other high heat producing
equipment.
* Location should provide a firm and level foundation for the equipment.
* Allow minimum 60 cm (24”) clearance at rear, sides and top for ease of maintenance and/
or service.
* Install the unit in a well-ventilated area. Use fans with diameter over 6” (15 cm) [standard
air flow rate: 270 ft3/min (450 m3/h)] if necessary.
[c] SET UP
NOTICE
Use PVC pipes and, if necessary, connectors and gaskets for electrolyzed water
piping. Other materials may corrode and leak.
1) Drill two attachment holes each in the sanitizing
water tank and cleaning water tank to attach
the float switches.
Note: The diameter of the attachment hole for
the float switches is 9/16” (14 mm). The
minimum vertical distance between two
attachment holes is 2.8 - 3.2” (70 - 80
mm).
2) Remove the fitting nut from each float switch.
3) Follow the label on each float switch. Place the float
switch in each tank and pull the cable through the two
holes out of the tank. Then reconnect the fitting nut to
the cable and secure the float switch to the tank.
Note: Be sure to check the direction of the float switch.
4) Secure each water tank with a belt, framing or other
securing device so that it will not tip or fall.
Top Magnet
Bottom
Hole Diameter
9/16” (14mm)
Min. 2.8 - 3.2”
(70 - 80mm)

14
[d] ELECTRICAL CONNECTION
* Usually an electrical permit and services of a licensed electrician are required.
* To operate the unit in the pool mode, replace the XM connector (5P) [red] with the
accessory XM connector (5P) [dark blue]. See “9. [a] OPERATION MODE”.
1) Remove the side panels.
2) Remove the plastic cover of the terminal block
located under the gear motor inside the unit.
3) Remove the two blind bushings from the rear panel.
4) Route one pair of float switch wires through one
hole and the other pair of float switch wires through
the other hole.
5) Connect the connectors attached to the float
switches so that the colors of the connectors match.
6) Connect round eyelet contacts to the terminal block
matching the numbers according to the label on the
wires.
7) Replace the plastic cover of the terminal block in
the original position.
8) Use the two strain relief bushings (accessory) to
secure the wires in the two holes in the rear panel.
Note: Use one bushing for two wires.
9) Replace the side panels in their original positions
and secure with the screws.
7. INSTALLATION OF OUTLET VALVES (OPTION)
WARNING
1. This appliance should be serviced only by qualified service personnel to
reduce the risk of death, electric shock, serious injury, or fire.
2. Turn off the power switch (ground fault interrupter) and unplug the appliance
before installing this kit.
White Black
Connector Connector
Terminal Block
Unit Side Panel
Blind Bushing
Side Panel

15
[a] CHECKS BEFORE INSTALLATION
1) Unpack and remove shipping carton, tape(s) and other packaging material(s).
2) Check that all the necessary accessories are included.
[b] LOCATION
WARNING
1. This outlet valve is not intended for outdoor use. Normal operating ambient
temperature should be within 40°F to 95°F (5°C to 35°C); Normal operating
water temperature should be within 40°F to 85°F (5°C to 30°C). Operation
of the outlet valve for extended periods outside of these normal temperature
ranges may affect performance.
2. Install an adequate ventilating system. Hydrogen gas or chlorine gas may
cause health problems.
NOTICE
1. Avoid a site where dripping is not allowed. Condensation may form on the
exterior in high humidity and could drip onto the floor.
2. Use glass, plastic or stainless steel containers for electrolyzed water.
Sanitizing water may corrode metal.
For best operating results:
* The outlet valves should not be located next to ovens, grills or other high heat producing
equipment.
* Location should provide a firm and level foundation for the equipment.
* Install the unit in a well-ventilated area. Use fans with diameter over 6” (15 cm) [standard
air flow rate: 270 ft3/min (450 m3/h)] if necessary.
[c] SET UP
NOTICE
Use PVC pipes for electrolyzed water piping. Other materials may corrode and
leak.

16
1) Choose a dispense method (water pump or water tank) depending on the installation
situation. Install PVC pipes from the water tank to the location where electrolyzed water
is used.
Note: In case of using a water pump, follow the instruction manual for electric wiring
and piping.
2) Connect the valve with the flexible pipe.
Note: Before fitting the flexible pipes into the valves, wrap the pipe threads with thread
sealant tape.
Do not misconnect the accessory flexible pipes:
Yellow pipe - Sanitizing water
Blue pipe - Cleaning water
The valves are common to both sanitizing and cleaning water.
3) Install the outlet valves on the wall using the M4 x 8 screws (accessory), etc. depending
on the installation condition. Install the outlet valves on pipes from each water tank.
Outlet valve inlet is 1/2” female pipe thread (FPT).
Note: When mounting the valves on a wall surface, locate:
Sanitizing water valve (yellow pipe) on your right
Cleaning water valve (blue pipe) on your left
Flow Control Valve
(Adjustment required to dispense
at more than two locations)
Flexible Pipe
(Cleaning water: blue)
Flexible Pipe
(Sanitizing water: yellow)
Thread Sealant Tape
Valve
4) Attach the labels (sanitizing water,
cleaning water, and caution) in
readily visible positions near the
valves.
8. WATER SUPPLY AND PLUMBING CONNECTIONS
[a] UNIT WITH REMOTE CONTROLLER, WATER SOFTENER & WATER FILTER
NOTICE
1. Do not run the electrolyzer until adequate water pressure [22 - 115 PSIG (0.15
- 0.78 MPa)] is reached.

17
Water Supply Hose
Gasket Gasket
Pressure
Reducing Valve
2. The vertical height of the pipe and total length of the pipes for sanitizing
and cleaning water should be the same. Different pipe lengths may cause
an unstable amount of sanitizing and cleaning water to be generated, poor
performance or damage to the unit.
3. Keep the end of the electrolyzed water pipes open. Do not install a shut-off
valve on the end of the pipe, connect a hose with the end of the water outlet
or immerse the end of the pipe in water. Different pipe lengths may cause
an unstable amount of sanitizing and cleaning water to be generated, poor
performance or damage to the unit.
4. Pour electrolyzed water down a drain after it is neutralized. Putting
electrolyzed water down a drain without neutralizing it may cause rusty pipes
and water leakage.
5. Do not install the unit where there is a possibility of freezing. Remove water
from the unit if ambient temperature may fall below 32°F (0°C). Frozen water
may damage water supply pipes and cause water leakage.
6. Maintain water supply pressure to the unit within 22 - 115 PSIG (0.15 - 0.78
MPa). Excessively low or high water pressure may cause poor performance
of sanitizing and cleaning water, trouble or water leakage from the connections.
* Be sure to install the pressure reducing valve after
the water filter and water pressure gauge. Pressure
reducing valve inlet is 1/2” male pipe thread (MPT).
The electrolyzer will not work properly without the
pressure reducing valve.
Note: Be sure to check the direction of the pressure
reducing valve.
* Water supply inlet is 3/4” MPT. Connect the unit with the pressure reducing valve using
the water supply hose (accessory).
Note: Place the gaskets between the water supply hose and unit water supply inlet and
the pressure reducing valve and tighten properly. Incomplete connection may cause
water leakage.
Inlet
Outlet

18
* Prepare a drain hose with a plastic shut-off valve if water needs to be removed from the
unit or water may freeze in the unit in cold areas. Remove the drain cap on the back of
the unit and attach the plastic joint, vinyl or PVC hose and plastic shut-off valve. Drain
outlet is 1/2” female pipe thread (FPT).
* Put the salt water hose through the cap (accessory) and push in the salt water hose until
the stopper hits the cap.
Note: Install the remote controller so that the outlets are located above the salt water filter
on the end of the salt water hose. Due to the siphon phenomenon, salt water may
leak from the outlets of the remote controller if the remote controller outlets are not
high enough.
* A water supply line shut-off valve and drain valve should be installed.
* The drains should not be piped directly to the sewer system. An air gap of a minimum of
2 vertical inches (5 vertical cm) should be between drain pipe ends and the floor drain,
the hose ends from the electrolyzer and the floor drain, and the water supply line drain
valve and the floor drain.
* This water elelctrolyzer should be installed in accordance with applicable national, state
and local regulations.
* A plumbing permit and services of a licensed plumber may be required in some areas.
Rear Panel
Drain Cap Joint (Plastic)
Vinyl or
PVC Hose
Shut-off Valve
(Plastic)
Stopper
Install the remote controller so
that the outlets are located above
the salt water filter on the end of
the salt water hose.

19
Remote Controller
Water Pressure
Gauge
Shut-off Valve
Braided
Hose
Water Softener
Water Filter
Drain
Valve
Pressure
Reducing Valve Unit Salt Water Tank
Sink
Water Outlet
Water Supply
Pipe
Water Supply
Pipe
Water Supply
Hose
Water
Supply
Water Softener
Assembly
* Piping Example
[b] UNIT WITH WATER TANK, WATER SOFTENER & WATER FILTER
NOTICE
1. Do not run the electrolyzer until adequate water pressure [0.15 - 0.78 MPa (22
- 115 PSIG)] is reached.
2. The vertical height of the pipe and total length of the pipes for sanitizing
and cleaning water should be the same. Different pipe lengths may cause
an unstable amount of sanitizing and cleaning water to be generated, poor
performance or damage to the unit.
3. Keep the end of the electrolyzed water pipes open. Do not install a shut-off
valve on the end of the pipe, connect a hose with the end of the water outlet
or immerse the end of the pipe in water. Different pipe lengths may cause
an unstable amount of sanitizing and cleaning water to be generated, poor
performance or damage to the unit.
4. Pour electrolyzed water down a drain after it is neutralized. Putting
electrolyzed water down a drain without neutralizing it may cause rusty pipes
and water leakage.
5. Do not install the unit where there is a possibility of freezing. Remove water
from the unit if ambient temperature may fall below 32°F (0°C). Frozen water
may damage water supply pipes and cause water leakage.