Mizudo FEMV18WA User manual

Installation and Operation Manual
Electric Tankless Water Heater
FEMV18WA
MODEL:
WARNING
Use this manual for installations in the United States of America: Please read all
instructions before using this water heater. Failure to follow the information in these
instructions may result in fire, electric shock, property damage, injury or death.

Contents
CONTENTS
1 Explanation of Symbols and Safety Instructions
1.1 Recognize Safety Information
1.2 Understand Signal Words
2 General Information
2.1 Unit Specifications
2.2 Technical Parameters
3 Installation
3.1 Quick Start Guide
3.2 Before Installation Process
1.3 Important Safety Messages
3.3 Prepare for installation
3.5 Plumbing Installation
3.4 Installation Instructions
6 Troubleshooting
8 Packing List
4.1 Operation Instructions
5 Normal Maintenance
3.6 Electrical Connections
3.7 Installation Diagram
Warranty Policy
6.2 Diagnostic Chart
4 Operation
6.1 Malfunction Code
7 Circuit Diagram
02
02
02
02
04
04
05
06
06
06
07
07
08
10
11
11
11
12
13
14
09
10
08
10

1 Explanation of Symbols
and Safety Instructions
1.1 Recognize Safety Information
This manual has safety information and
instructions to help you eliminate or reduce the risk
of accidents and injuries.
CAUTION
Indicates a hazardous situation which, if
not avoided, could result in property
damage and minor or moderate injury.
WARNING
Indicates a hazardous situation that, if not
avoided, could result in death or serious
injury.
DANGER
Indicates an imminently hazardous
situation which, if not avoided, will result in
death or serious injury.
NOTICE
This symbol indicates important information
where there is no risk to people or property.
Explanation of Symbols and Safety Instructions
This is the safety alert symbol. It is used to
alert you to potential physical injury hazards.
Obey all safety messages that follow this
symbol to avoid possible injury or death.
1.2 Understand Signal Words
A signal word will identify safety messages and
property damage messages, and also will indicate
the degree or level of hazard seriousness.
1.3 Important Safety Messages
02
ŸTemperature limiting valves are
available. See manual.
ŸChildren, disabled and elderly are at
highest risk of being scalded.
ŸWater temperature over 125 °F can
cause severe burns instantly or death
from scalds.
ŸSee instruction manual before setting
temperature at water heater.
ŸFeel water before bathing or
showering.
DANGER
HOT
BURN
DANGER
Safety and energy conservation are factors
to be considered when selecting the water
temperature setting of water heater’s
thermostat. Water temperatures above the
125 °F can cause severe burns or death
from scalding. Be sure to read and follow
the warnings outlined on the label pictured
below.
NOTICE
Mixing valves are recommended for
reducing point of use water temperature by
mixing hot and cold water in branch water
lines. It is recommended that a mixing
valve complying with the Standard for
Temperature Actuated Mixing Valves for
Hot Water Distribution Systems be installed.

Explanation of Symbols and Safety Instructions
03
3. The installation must be installed professionally,
in compliance with the National Electrical Code,
your local electrical and plumbing codes.
1. CAUTION: FOR HOUSEHOLD AND INDOOR USE
ONLY.
2. DO NOT install this hot water unit in a location
where it may be subjected to freezing
temperatures. IF YOU IGNORE THIS WARNING,
THE UNIT MAY GET PERMANENT DAMAGE DUE
TO IT FREEZES INSIDE.
4. This appliance MUST be permanently connected
to the fixed double pole circuit breaker and it
must be installed vertically. DO NOT install this
appliance near tinder or a strong magnetic field
place.
5. This appliance must be EARTHED.
8. Please feel the outgoing hot water temperature
with your hands to make sure it is suitable for
shower. As a result, you will avoid getting
scalded.
11. If there is damage to the wire, you must contact
a qualified electrician to replace it with specific
wire.
10. This appliance is forbidden to be switched on if
you think it might be frozen, as this could result
in serious damage to the unit. Wait until you are
sure that it has completely thawed out before
you switch it on.
6.All wiring and installation must be supervised by
a qualified electrician.
7. CAUTION: This product has more than one
power-supply connection point. Under no
circumstances should you attempt to install,
inspect, clean, repair, disassemble, or other
service this water heater, without first shutting off
all power to the unit directly at the circuit breaker
box. SERIOUS INJURY OR DEATH COULD OCCUR IF
YOU IGNORE THIE WARNING.
9. If the hot water unit has been paused during
use, you may initially get a short burst of very
hot water when you turn it on again .Please run
water through for a few seconds to settle down
water temperature. Check water tempt with
hand before shower again with it.
Time/Temperature Relationship in Scalds
Temperature
125 °F
130 °F
120 °F
140 °F
135 °F
145 °F
150 °F
155 °F
Time To Produce a Serious Burn
1½ to 2 minutes
About 30 seconds
More than 5 minutes
Less than 5 seconds
About 10 seconds
Less than 3 seconds
About 1½ seconds
About 1 second
The chart shown above may be used as a guide in
determining the proper water temperature for your
home.
DANGER
Households with small children, disabled,
or elderly persons may require a 120 °F or
lower thermostat setting to prevent contact
with "HOT" water. The temperature of the
water in the heater is regulated by the
electronic control on the front of the water
heater. To comply with safety regulations,
the thermostat was set at 104 °F before the
water heater was shipped from the factory.
Please consult Operating Instructions to learn more
about setting your heaters temperature.
Setting: 86-131 °F

2 General Information
General Information
04
2.1 Unit Specifications
Control Key
Cold Water Inlet
Led Display
Hot Water Outlet
Front Cover
12.22" (310.5 mm)
2.28" (58 mm)
11.69" (297 mm)
17.24" (438 mm)
3.94" (100 mm)
3.43" (87 mm)

General Information
05
2.2 Technical Parameters
Model
Voltage 240V~
Power 18kW
FEMV18WA
2 X 40AMP
Max. Amperage 75A
Min. Required Circuit Breaker Size
Recommended Wire Size 2 X (8AWG/2)
0.5 GPM / 1.93 L/min
Min. Water Flow to Activate the Unit
2.9 PSI - 120 PSI
Water Connections 3/4" NPT
Safe Operating Pressure
Installation Wall mounted
Temperature Setting Digital Panel
Temp. Increase Per GPM
1.6 GPM
Weight 18.0 lbs
17.24" x 12.22" x 3.43"
Dimensions
1.7 GPM
1.9 GPM
2.0 GPM
2.2 GPM
2.5 GPM
2.8 GPM
3.2 GPM
3.7 GPM
71 °F
67 °F
60 °F
57 °F
52 °F
45 °F
41 °F
35 °F
31 °F
1. The above wire size and circuit breaker size are for this 18KW unit only, if you need other high-power
appliances, please do further research for that.
2. About heating performance of the18000W unit, if water inlet in your area is 52 °F, you are able to get 1.8
GPM hot water@110 °F, if you set lower tempt, you get more than 1.8G PM, correspondingly.
3. For the best warm experience, the 18000W water heater is suggested for a single shower room at a time.
If you live in Southern US with warmer climate, you could expected a shower and faucet running at the
same time.
Remarks:

3 Installation
Installation
06
3.1 Quick Start Guide
Mounting
2. Plumbing connections are 3/4"NPT,and both the
inlet and outlet can be found at the bottom of
the unit. When installing your water connections
make sure to use 3/4"NPT fittings.
4. NEVER USE PVC ON HOT WATER OUTLET. Use
instead CPVC or other high temperature rated
materials.
1. For the best service and lifespan of the hot water
unit, it is advised that a descaler device should
be installed inline to the supply line (cold) to
avoid any potential damage due to scale build-
up.
The unit should be installed vertically on a flat
surface that is larger than the unit itself. Drill 4
holes into the wall for mounting screws, in
accordance with the installation template. Make
sure the unit is securely mounted by those 4 wall
anchor and screws provided. Keep the unit away
from any slashing or leaking water, also strong
magnetic field.
Water Connections
3. Please use the provided gaskets to prevent leaks.
5. Run water through the heater for a few minutes
to purge all air from the system. Shut off flow at
faucet to pressurize system. At this point check
for and fix any leaks. If no leaks are present
move to next step.
Power wires with Grounding gets into the terminal
blocks located right bottom of the unit. 2 set of
8AWG/2 wires with Grounding wire should run from
a 2X40A double pole breaker on the home main
breaker panel, to the water heater unit terminal
blocks. Securely tightened to get 240V supply.
Water Connections
Operation
After power is switched on a beep can be heard
and display lights up. First open the water faucet
to purge all the air inside the unit, and then press
power button on the unit to turn on, Set Temp, and
the temperature can be set between 86-131°F. Set
desired temp with the UP and DOWN arrows. Test
water before use to avoid scalds.
CAUTION
This unit requires a 2X40A double pole
breaker. For more information please
consult a certified electrician in your area.
3.2 Before Installation Process
4. Make sure that the water heater and hot water
outlet pipe are out of reach of children so they
are unable to tamper with the temperature
controls or injure themselves by touching the hot
water outlet pipe. The outlet water pipe can get
very hot.
Guideline You Should Know
1. This product is designed to be installed indoors
only. You may install your unit in an outdoor
location so long as it is mounted in a suitable
enclosure that protects it from rain, splashed
water, freezing temperature, direct sunlight,
debris and insects.
2. DO NOT install this product in a location where it
may be subjected to freezing temperatures. If the
water inside your tankless water heater freezes, it
can cause severe and permanent damage that is
not covered under your warranty.
3. DO NOT locate the water heater in a location that
is difficult to access.
7. DO NOT install above electrical boxes or
junctions.
6. DO NOT install under water pipes or air
conditioning lines that might leak or condense
moisture that could then drip onto the heater.
5. Avoid installing your tankless water heater in a
location prone to excessive humidity, moisture or
dust, or in an area where it may be splashed
with water or other liquids.
CAUTION
The water heater should not be located in
an area where leakage will result in
damage to the area adjacent to it or to
lower floors of the structure. Where such
areas cannot be avoided, it is
recommended that a suitable catch pan,
adequately drained, be installed under the
water heater.

3.4 Installation Instructions
Installation
07
12.08" (307 mm)
2.28" (58 mm)
Fig. 1
1. Figure out where to mount the water heater unit,
mark 4 mounting holes on the wall according to
the installation template (Fig.1).
2. Drill holes (Ø6x32mm) into the wall on those 4
marked position , put expansion bolt into the
mounting hole and then fix the 2 mounting
brackets with screws and Phillips screw driver
(Fig.2 and Fig.3).
Mounting Hole Mounting Hole
Expansion boltes Screw
Fig. 2 Fig. 3
The installation must be in compliance with the
National Electrical Code, your local electrical and
plumbing codes.
2. Make sure the main power supply, water
pressure, grounding condition ammeter and wire
reach the standard of installation requirement.
5. DO NOT install this appliance near tinder ora
strong magnetic field place. The unit must only
be assembled in a VERTICAL position near by the
water fittings.
Please test the unit after getting the water flow.
4. This appliance MUST be permanently connected
to the fixed circuit breaker. If you do not use the
heater, please switch off the circuit breaker.
1. Make sure the appliance is intact, and the fittings
are complete.
3. The appliance must be connected to properly
grounded dedicated branch circuits of proper
voltage rating. Ground must be brought to the
"ground bar" at the circuit breaker.
3.3 Prepare for installation
Parts included
Electric Tankless
Water Heater
User Manual Assembly Kit
Tools needed (Not included)
Phillips
screwdriver
Gloves
Hammer Drill
With Concrete Bits
Ruler Pencil
Slotted
screwdriver

3.6 Electrical Connections
3. This water heater must be permanently
connected to the direct main breaker panel. The
use of a plug and socket is forbidden.
8. Connect the wires to cable fixed to unit.
2. All electrical work must comply with national and
applicable state and local electrical codes.
9. As with all high power appliances, make sure
that you have turned off the vary circuit breaker
for the water heater before installing,
disassembling or repairing the water heater.
Failure to follow this instruction may result in
serious property damage, injury or death and
this will avoid your warranty.
7. While connecting the wires to the panel breaker,
please make sure the metal wire ends and the
blocks touch completely. Then tighten the screws
to make sure the full current can go through.
1. All mounting and plumbing must be completed
before proceeding with electrical hook-up.
4. The unit must be connected to a properly
grounded dedicated branch circuit of proper
voltage rating.
5. The FEMV18WA hot water unit needs 2X40 AMP
double pole breaker, 2 set of 8AWG/2 wires with
Grounding wire for 240V proper power supply.
6. Before beginning any work on the electric
connections, make sure that the main breaker
panel switch is OFF to avoid any danger of
electric shock.
Installation
08
3. The water heater gets 2 mounting brackets on
the back side, so all you need to do is hang the
water heater on those fixed brackets on wall, pull
the water heater unit downside to sit it tight
(Fig.4).
Fig. 4
Mounting
Bracke
3.5 Plumbing Installation
2. The unit should be connected directly to the
main water supply.
Flush the pipe with water to remove any debris
or loose particles before pipe connections, so as
to avoid clogging.
3. It is required to use 3/4"NPT water connections
to fit the models on FEMV18WA.
4.Flexible water hose are recommended to use
with your hot water heater as part of installation,
it makes future maintenance more convenient.
Please remember to install rubber seal rings at
the connections. When all water connections are
completed, check for leaks and take the
necessary actions before proceeding.
5. A set of service valves should be applied to the
inlet and outlet fittings of the water heater
FEMV18WA if you live in hard water area, so you
could get easy access of annual maintenance.
Also, a descale device should be applied to the
inlet pipe, so as to avoid scale build up and
ensure long lifespan (Fig.5).
1. All water pipes must comply with national and
applicable state and local water pipe codes.
6. When you do pipe connection to the unit, Over
tighten must be avoided.

Installation
09
Fig. 5
Fig. 6
3.7 Installation Diagram
Service Valve
Water Inlet
Descaling device
Water Outlet
Breaker A
Terminal blocks
2X40A Double pole
Breaker B
Black
Red
Copper
Black
Red
L2 L1

4 Operation
4.1 Operation Instructions
Operation
10
WARNING
Open water source and allow water to run
though the water heater for at least 2 to 3
minutes. This will purge the air out of the
unit and must be performed prior to
turning on the power at the unit.
Failure to do so will cause serious damage
to heating elements.
1Outlet water temp
3Standby
2Fahrenheit
4Water flow signal
4. When the unit Is working, LED lights show
“Actual Temp”
In the off state press " " 5 seconds to switch
between Fahrenheit and Celsius temperature
display.
3. After the unit is supplied with power, a beep
sound can be heard and LED lights up and stays;
if there is no other display, the appliance keeps
standby.
2. Turn on the circuit breaker to supply electrical
power to the unit.
6. Fahrenheit / Celsius Switch-The default setting of
the unit is Fahrenheit.
5. Press "+" and "-" to adjust the outlet water
temperature, Temperature setting range is 86 -
131 °F.
7. Press " " to start.
1. Open the water faucet for 3 minutes until the
water flow is continuous and all the air has been
purged from the water pipes.
Fahrenheit display
If the unit has been paused, you may initially get a
short burst of very hot water when you turn it on
again. Please run the water through for a few
seconds to let the temperature settle down. Please
check the hot water with your hand before taking a
shower.
If the unit is not used in winter drain out the water
completely so that the heater does not freeze.
Please clean the inlet filter and the shower
periodically in order to keep a proper water flow.
5 Normal Maintenance
Do not attempt to repair this water heater
yourself if the unit is not working properly.
Call a technician for assistance.The power
supply always needs to be shut off before
these operations are carried out.
CAUTION
To ensure consistent Maximum performance of the
unit, it is recommended to follow these instructions:
2. There is a built-in filter at the inlet connection which
should be cleaned from time to time. Please cut the
water supply before doing this. And you can reverse
inlet and outlet pipe connections, open faucet to
max to flush the filter. Remember to reverse back
after you get it done.
3. If you live in hard water area and you get a descale
device installed prior to the tankless water heater, it
is recommanded that you should annually change
the filter for the descale device, or do it according to
the instruction of its manufacturer.
1. Periodically remove scales and dirt that may build
up at the aerator of the faucet or in the shower
head.
5Celsius
7Water is heating up
6Reminder of excessive
water flow
Important Note:
2. If you have a water supply with high level of
mineralization(hard water),you should increase the
frequency of your maintenance. Check the declare
device regularly to see if it is functional. 3.Do not
use thinner, alcohol, petrol, or any other organic
solutions to clean the set. use only a damp cloth
with mild detergent.
1. Any maintenance performed on the water heater
unit may introduce air into pumbing pipes, it is
important to purge all the air out before power on
again. Failure to do so could cause serious
damage to the heating element.
13
24
567

6 Troubleshooting
Troubleshooting
11
6.1 Malfunction Code
Error Code
E1
E2
E3
E4
EC
Failure analysis Solution
Send to after-sales service.
A. Select lower power level or turn down the
temperature.
B. Increase water flow.
Send back to after-sales service.
Send back to after-sales service.
Leakage of electricity
Temperature exceed 149 °F / 65 °C
Water inlet temperature sensor failure
Water outlet temperature sensor failure
Communication failure
6.2 Diagnostic Chart
Failure Phenomenon Failure analysis Solution
Leakage in the joint of
Inlet and outlet pipe
A. Poor connection of inlet and
outlet pipe.
B. The rubber washer is damaged.
A. Reconnect the pipe.
B. Replace the washer.
The water temperature is
too high
A. Water flow is too small.
B. Pipeline jam.
C. The power or temperature is set
too high.
B. Clear the inlet filter and shower head.
A. Adjust the valve to increase the water
flow.
C. Select lower power level or turn down
the temperature.
The water is too cold. C. The Temp set is too low.
B. The voltage is less than 240V.
A. The flowrate is too high.
D. Mixing too much cold water.
B. Check if the voltage is too low or not.
A. Adjust the valve to decrease the water
flow.
D. Mix less cold water.
C. Select higher Tempt set.
Water temperature is
unstable
The voltage or water pressure is
unstable.
The voltage water pressure are back to
normal.
The water is smaller and
smaller
The inlet filter or shower is blocked
by water impurities.
Remove the inlet pipe, clean the inlet
filter/shower.
Circuit breaker switch off
the power
B. The circuit breaker aging.
C. The AMPS load is not enough.
A. Leakage of electricity. A. Don's use it, send it back to after-sales
service to repair.
C. Using circuit breaker with high current.
B. Change the circuit breaker.
The screen has no display
A. Power is not connected.
B. The screen is damaged.
C. Not 240V power.
A. Close the switch to connect the power.
C. Chang to 240V power supply.
B. Replace the screen.
E5
B. There is interference from high-power
equipment nearby.
A. Check that the voltage meets the installation
requirements.
No over-zero signal-The user's home
voltage is low or the grid input voltage
abnormal
Contact Airthereal support for assistance.

7 Circuit Diagram
Circuit Diagram
12
18000W water heater
FEMT18GA
Flow sensor
Water temp
sensor
High temp
sensor
Main PCB
Control PCB
240V 60Hz
240V 60Hz
Temperature Limiter
Terminal Block ZCT
Heater
Triac 1
Triac 2

8 Packing List
Order Design
1
Quantity
1 piece
2 1 piece
The water heater
Mounting brackets and screws
3 1 piece
4 1 pieces
Installation and Operation Manual
Installation mounting template
Packing List
13

Warranty Policy
What is covered
The Mizudo Standard Limited Warranty covers any defects in materials or workmanship when the product is
installed and operated according to Mizudo written installation instructions, subject to the terms within this
Limited Warranty document. This Limited Warranty applies only to products that are installed correctly in the
United States and Canada. Improper installation may void this Limited Warranty. Mizudo strongly recommends
that this tankless water heater to be installed by a contractor who is licensed, state qualified, and trained on
Mizudo's tankless products since improper installation may invalidate warranty coverage.
How long does coverage last
Item
All Other Parts and Components
*Shipping Costs
Period of Coverage (from date of purchase)
12 months
30 days
Residential Applications
* Which excluding Alaska, Hawaii, and any location outside of the continental US and Canada
Limitation on warranties
During the Warranty Period, all repair parts must be genuine Mizudo parts; all repairs or replacements must be
performed by a qualified professional who is professionally trained to do the type of repair. A component in the
product fails because of a manufacturing defect, Mizudo will repair, replace, or refund the product to the owner
at Mizudo’s sole discretion and as determined to be appropriate by the Mizudo Support Team.
Mizudo does not authorize any person or company to assume for it any obligation or liability in connection with
the replacement of the product. If Mizudo determines that repair of a product is not possible, Mizudo may
replace the product with a comparable product at Mizudo’s sole discretion. The warranty claim for product parts
and labor may be denied if a component or product returned to Mizudo is found to be free of defects in
material or workmanship; damaged by improper installation, use or operation; or damaged during return
shipping.
No one is authorized to make any other warranties on behalf of Mizudo Corporation. Except as expressly
provided herein, there are no other warranties, expressed or implied, including, but not limited to warranties of
merchantability or fitness for a particular purpose, which extend beyond the description of the warranty herein.
Any implied warranties of merchantability and fitness arising under state law are limited in duration to the
period of coverage provided by this Limited Warranty, unless the period provided by state law is less. Some
states do not allow limitations on how long an implied Limited Warranty lasts, so the above limitation may not
apply to you. Mizudo shall not be liable for indirect, incidental, special, consequential, or other similar damages
that may arise, including lost profits, damage to person or property, loss of use, inconvenience, or liability
arising from improper installation, service, or use. Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation may not apply to you. This Limited Warranty gives
you specific legal rights, and you may also have other rights which vary from state to state.
14

How To Obtain Service
To make a warranty claim through this Limited Warranty, the owner must contact Mizudo’s Customer Service
team at[e-mail], schedule a call or live chat on the Mizudo Whatsapp. It is within Mizudo’s sole
discretion when a repair, replacement, or refund will be issued. Any return for refund must be approved by
Mizudo’s Customer Service team prior to shipping the product back to Mizudo. Please refer to Returning Your
Product for Repair or Refund Policy provided with the Product.
ŸProof of purchase
ŸPhotos of the installation
All shipments of any type of product coming to Mizudo for any reason must have a Return Goods Authorization
(“RGA”) number for any repairs to be made. Please contact Mizudo to obtain an RGA number prior to shipping
anything to Mizudo. Failure to do so could result in loss of product. Mizudo will not be responsible for
replacement due to loss or damage if above steps are not properly followed.
Within the first 30 days of purchase, Mizudo will cover all ground shipping costs for warranty related issues in
the US and Canada, excluding Alaska, Hawaii, and any location outside of the continental US and Canada. After
the first 30 days of purchase, the owner is responsible for all shipping to Mizudo, regardless of reason or
circumstance. Mizudo will cover the warranty related shipping costs when returning the product to the owner
after repair/inspection. The method for warranty related shipping will be ground equivalent with the provider
within Mizudo’s sole discretion.
What information you will need for processing of your warranty claim:
ŸSerial numbers
ŸPhotos of the damage part (if there is one)
Any returns to Mizudo must be sent in the original packaging.If your returned product does not have the
original packaging and/or is missing any of the components that came with the product, there will be a
nonnegotiable 15% restock fee.
What Is Not Covered
6. This product shall not be used as a pool or spa heater. Use of the Product as a pool or spa heater shall be
considered misuse and will void this Limited Warranty.
1. A repair, replacement, or refund will not be provided under this Limited Warranty unless the Product
containing the defective component is properly installed and maintained according to Mizudo’s Installation
Manual and Use & Care Manual and in compliance with all applicable federal, state/province, and local laws,
regulations, codes, policies, and licensing requirements. Any abuse, misuse, alteration, neglect, or
misapplication of the product will void this Limited Warranty.
2. A repair, replacement, or refund will not be provided if the product is damaged by services performed by
third party service providers other than Mizudo Systems.
3. Mizudo systems is not responsible for any expenses arising from labor services, including but not limited to,
installation or removal services due to a warranty claim.
4. A repair, replacement, or refund will not be provided if the product is damaged because of improper
installation, including sizing, length, elevation, condensation drainage, or inadequate airflow.
5. A repair, replacement, or refund will not be provided if the product is damaged because of improper use,
including freezing within the unit or surrounding piping, incorrect sizing for the application, scale build up, or
incorrect gas and/or water pressure.
The following exclusions apply to this Limited Warranty:
15

10. Mizudo will not be responsible for any default or delay in performance under this Limited Warranty caused
by any factor or contingency outside of its control.
7. A repair, replacement, or refund will not be provided if the product is damaged by the use of non-potable,
untreated or poorly treated well water, or water with high PH levels or hardness levels in excess of 12 grains per
gallon (200 mg/L).
8. A repair, replacement, or refund will not be provided under this Limited Warranty if the original serial number
on the product has been removed or altered in a way that causes the serial number to not be readily
determined.
9. Mizudo will not pay increases in electricity for any reason whatsoever, including additional or unusual use of
supplemental electrical heat.
16
The water heater Serial number
Product name
Product model
Purchasing date

@2023 Mizudo Holdings Limited. Mizudo Holdings Limited continually updates materials, and as such,
content is subject to change without notice.
Tel: [phone] E-mail: [email protected]