Modena Veloce Series Owner's manual

User
Manual Book
Electric Instant Water Heater
Veloce Series
EI 2D B, EI 2 W

2
TABLE OF CONTENT
Part 1: Important Safety Information 3
Special Caution 3
Part 2: Name of Parts 4
EI 2D B 4
EI 2 W 5
Part 3: Installation 5
Power Cord Installation 5
Water Heater Installation 7
Plumbing Connection 8
Power Supply Connection 9
Water Supply 9
Part 4: How to Use 9
Display Screen Function 9
Button Function 10
Parameter Setting Mode 11
Water Heater Operation 11
Leakage Testing 11
Electric Leakage Protection 12
Water Flow Adjustment 12
Water Temperature Adjustment 12
Overheating Protection 12
Part 5: Maintenance 13
Part 6: Troubleshooting 14
Part 7: Specification 15
Appendix: Wiring Diagram 16
EI 2D B 16
EI 2 W 16
This manual book explains everything you need to know about your
new product. Please contact our Customer Care should you need
further assistance through www.modena.com.

3
To prevent personal injury, injury to others, and property damage, the
safety instructions below must be followed. Incorrect operation due to
the failure to follow the instructions will cause harm or damage.
Special Caution
This water heater is household-based usage, and it can be installed
in every area with hot water necessity.
Plug is not used for this water heater; this water heater must be
connected directly with the power switch that comes with leakage-
protection. Please distinguish the live line (red/brown), the neutral
line (blue) and the earth line (green/yellow) during installation.
Do check whether the ampere (A) of the household wiring is enough
before the installation, and particular circuit must be used during
installation.
Before installing this water heater, make sure the grounding
electrode on the socket is reliably grounded without electricity.
The hot water from this water heater may cause scald; therefore,
please test the temperature of the hot water before use.
The distance between the installed water heater and the water
output should be as nearby as possible to avoid loss of heat.
This electric instant water heater may be damaged if the water
hardness is too high. To ensure the appliance durability, please
install and put it into use on condition that the local water hardness
is less than 450mg/L (CaCO3).
In time of lightning/thunder, switch “Off” the Miniature Circuit
Breaker (MCB) in advance to protect the water heater against
possible damage.
Inspect on the built-in ELCB (once a month) to avoid a hazard to
users such as damage to property, serious injury or death.
Do cut-off the power (electricity) supply before any maintenance.
Any maintenance or adjustment towards this appliance by non-
professional is highly prohibited.
The damaged power cord must be replaced with a good power cord
provided by the manufacturer, and the replacement should be done
by a qualified technician or engineer or professionals of the similar
products.
PART 1: IMPORTANT SAFETY INFORMATION

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In order to avoid a hazard due to inadvertent resetting of the Earth
Leakage Circuit Breaker (ELCB), this appliance must not be supplied
through an external switching device, such as timer or connected to
a circuit that is regularly switched “On” and “Off” by the utility.
This water heater is equipped with adjustable flow capacity safety
valve. For the safety use, please do not change the location of the
water heater installation and do not block its water outlet.
MODENA will not be liable for any responsibility regarding to any
improper installation and incorrect operation of this appliance.
This water heater can be used for other purposes (e.g. washing
hands, dishes or foods, and so on)
When the water heater is used by children, elderly, or person(s) with
special needs for their mental and physical capabilities, the heat-
checking of water temperature by using hand from time to time is
necessary.
Children should be supervised to ensure that they do not play with
this appliance.
EI 2D B
PART 2: NAME OF PARTS
Main Control
Board
Thermal
Cut-out
Tank
Front Cover
Water Outlet
Marker (Red)
Power Knob
Water
Inlet
Ring Circlip
Stainless-steel
Water Inlet
Marker (Blue)
Flow Switch
Silicon Control
Display Board
Display
Button
Terminal Block
Water
Outlet

5
EI 2 W
Power Cord Installation
1. Remove the screws at the
bottom of the unit. Lift up the
main switch knob and the
power knob to make it free.
Remove the front plate (the
cover) gently.
4. Insert the power cord (lines)
into the jacket for installation
of the wire pressing plate.
PART 3: INSTALLATION
Terminal Block
Thermal
Cut-out
Tank
Front Cover
Ring Circlip
Stainless Steel
Indicator
Light
Button
Water Outlet
Power Knob
Main Board
Control
Flow Switch
Water Inlet
Water Outlet
Marker (Red)
Silicon Control
Indicator Light
Board
Water Inlet
Marker (Blue)

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2. Remove the pressing plate of
the power cord and keep the
screws.
Tighten the wire-pressing plate
with the screws to the primary
position. Make sure that the
power cord doesn’t come loose
when it is pulled at 60N force.
3. Gash the middle of the outer
jacket with a sharp knife in
order to insert the power
cord (lines).
6. Connect the end of the power
cord to wiring terminals; the
method is as shown in the
image.
NOTE
The installation of every ends of neutral line (blue), live line (brown
/red) and earth line (green/yellow) should be corresponding to the
other end on wiring terminals
5.

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Water Heater Installation
1. Determine the installation position of the water heater according to
the length of the power cord / the position of switch (the distance
from the floor to bottom part of the appliance should be ≥1.6m).
2. Make sure the distance between the appliance and the surrounding
wall is not less than 300mm, so that to have enough space for
maintenance purpose.
3. Determine the position of three fixing screws (that is attached with
the wrapping carton). Make three holes with corresponding depth to
the wall (by means of a drill) and insert a plastic wall anchor
(Fischer) into the hole.
4. Tighten one of the screws on the top side of the appliance, and
make sure that there is certain distance between the head of the
screw and the wall (see below picture).
5. Install the appliance on the wall and tighten two screws at the
bottom, connect the cords and re-install the top cover with the
screws.
(Picture 1)

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Plumbing Connection
1. The water valve that is equipped with filter should be installed at the
water inlet of the appliance, and the sealing ring equipped with filter
should be installed at the end of the valve. (See below Picture).
2. Shower flexible hose should be connected with the hot water outlet
and the shower head separately; attached sealing ring should be
installed at the end of the hose.
WARNING!
Do not use metallic / chromed hose and conductive control valve
shall
Power
Knob
Water
Outlet
Water Flow
Controller
Valve with
Filter
Valve
To Main Wiring Line
Circuit
Breaker
Valve
Water
Inlet
L (Red)
N (Blue)
E (Yellow/Green)

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Power Supply Connection
1. Adjust the power controller knob to “OFF”.
2. Choose circuit breaker (such as Miniature Circuit Breaker/MCB) that
is equipped with leakage protection according to the power of the
water heater.
3. When connecting the water heater to the electric network, please
pay attention to connect the live line (red/brown), the neutral line
(blue) and the earth line (yellow/green) with corresponding to the
line in electric network.
Water Supply
After all the process of the plumbing connection is finished, open the
water inlet valve of the water heater and supply the appliance with the
water to drain away the air inside until there is the stable water flow
comes out from the shower head. In order to avoid water leak, check
and fasten the pipe connection of the water heater, and then re-supply
it with water.
Display Screen Function (EI 2D B Only)
PART 4: HOW TO USE

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Display
Icon
Function
Functional description
Safety Sign
If the “Safety Sign” is displayed normally, it means the
machine is trouble-free. If the “Safety Sign” twinkling
flicker, it means the water heater cannot be connected
to the Ground firmly.
Cold Water
Mode
If this function icon appears, the water heater is not
heated. Thus, the cold water will come out instead.
Morning
Mode
If this function icon appears, the water heater is in the
“Morning Mode” .The default set temperature is 36°C.
Night Mode
If this function icon appears, the water heater is in the
“Night Mode”. The default set temperature is 40°C.
Temperature
Scale
Displaying the current hot water temperature.
Power Icon
The “Power” icon displays the power output status.
The sign “Max” refers to the full power.
Button Function (EI 2D B Only)
Display
Icon
Function
Functional Description
Leakage
Circuit
Detection
If the “Test” button is pressed, this water heater will
perform the leakage circuit detection. Re-press (press
back) this button, so the water heater will perform
recovery.
Mode
Selection
If the “Mode” button is pressed, this water heater will
switch to the “Cold”, “Morning”, or “Night” mode.

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Parameter Setting Mode (EI 2D B Only)
To activate this mode, do press the "Mode" button for 3 second,
system will enter parameter setting and screen will flicker. Rotate the
knob to set the temperature as desired. Re-press the "Mode" button;
the parameters are set successfully.
Water Heater Operation
Switch on the power supply, the screen of EI 2D B will be on or “Earth”
and the “ELCB” blue indicator lights will turn on for EI 2 W. When the
water flow exceeds 1.5L/min, rotate the knob clockwise to switch on
the power switch, the heating indicator light will be on, and the water
heater will start to work.
Leakage Testing
[EI 2D B] When the water heater is working normally, press the “Test”
button. If the leakage testing shows no issue, the screen will off, and
this water heater will not working to heat. Press “Reset” button for
finishing the test, the display will be on, and the appliance (the water
heater) will be back to working state as before. If the electrical
leakage occurs, pressing “Reset” button would not cancel the leakage
testing. If the screen does not turning on, it means the water heater
has problem and cannot be used; all the buttons are invalid and the
heating stopped. If the “Safety Sign” twinkling flicker, it means the
heater cannot be connected to the Ground firmly. Please check the
grounding before use.
[EI 2 W] When the water heater is working normally, press the “Test”
button. If the leakage testing shows no issue, the “ELCB” green
indicator light will flicker, and the water heater will not working. Press
“Reset” button for finishing the test, the “ELCB” green indicator light
will turn on, and the water heater will be back to the working state as
before. If the circuit leaks, pressing “Reset” button cannot cancel
leakage testing. If the “ELCB” green indicator light keeps flickering, it

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means the water heater has problem and cannot be used; all the
buttons are invalid and heating stopped. If the “Earth” blue indicator
light turns off, it means the water heater cannot be connected to the
Ground firmly. Please check the grounding before use.
Electricity Leakage Protection
When the electricity leakage testing circuit is working normally and if the
electrical leakage is bigger than certain value between 7.5mA and 15mA,
the display on EI 2D B will turn off or “Earth” indicator, “ELCB” and the
“Power” indicator on EI 2 W will flicker, as well as no heating. The water
heater can only be used after the failure is excluded.
Water Flow Adjustment
Rotate the handle of the water flow (valve) to adjust the water flow.
Water Temperature Adjustment
Rotate the handle of water flow (valve)to adjust thewater flow as needed.
Then, adjust power by rotating the knob clockwise to accordingly
increase the power and water temperature or vice versa.
Overheating Protection
If the water flow is weak and the power is highly used, the outlet water
temperature is rather high, and the water heater will stop heating
automatically. At this time, please lower the power and adjust the
water flow faster in order to avoid inconsistency of water temperature.

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This electric instant water heater should be installed at the place
without sunshine or rain spray. Please cut off the power supply
(electricity flow) if the water heater is not used for a long time.
In order to avoid the blockage of water heater, please rinse the pipe
with water for about 10 seconds to drain away the impurities in the
pipe before connecting the water supply to the water heater.
If the water heater has not been used for a long time, check the
water heater first before use. Connect the water heater with power
supply after the water flows out stably.
To avoid moisture, do not spray water to the circuit breaker or the
heater body directly.
Please cut off the power supply in the weather of thunder and rain
to avoid damaging the water heater.
If the water heater is not used for a long period of time, please cut
off the water inlet to prolong the durability of the water heater.
Check the power cord that is connected to terminals frequently to
make sure that they are in well condition, firmly connected, no
overheating case, and in a well state of grounding .
Disassembly the shower head and the sealing ring first before
cleaning the water heater periodically.
PART 5: MAINTENANCE
WARNING!
Do cut off power supply before maintenance to avoid danger like
electric shock.
NOTE
This water heater can only be maintained and repaired by authorized
service technician of MODENA. The incorrect installation and using
method may cause serious injury or loss of property.

14
Problem
Possible Cause
Recommended Action
When switching on the
power, screen displays
“E5” and flashing (EI
2D B).
ELCB indicator light is
off (EI 2 W).
1. Power supply error.
2. PCB error.
3. Electricity leaks.
1. Check whether the power
supply is cut.
2. Contact MODENA
Customer Care for repair.
The heating indicator light
is off and the outlet water
is cold.
1. “Power” knob is off.
2. PCB error.
3. Water flow is less than
1.5L/min.
4. Impurities clogging the
rotor of water flow
switch (water valve).
1. Rotate the “Power” knob.
2. Repair or replace the PCB.
3. Increase the water flow.
4. Change the flow sensor.
5. Open the water valve and
clean the rotor.
The outlet water is cold.
1. The thermal cut-out is
disconnected, and
screen display “E3” on EI
2D B.
2. Heating elements is
damaged.
1. Press the “Reset” handle
of the Thermal Cut-out
after checking.
2. Change the heating
elements.
No water flows out from
the shower head.
1. Water supply is cut off.
2. Water inlet valve is not
open..
1. Wait until the water supply
is restored.
2. Open the water inlet valve.
The temperature of outlet
water is inconsistent
1. The water pressure is
unstable.
2. The temperature of
outlet water is too high -
overheating protection is
working excessively.
Lower the heating power,
and increase the water flow.
Safety sign is flickering
(EI 2D B)
1. Grounding is damaged.
2. PCB error.
1. Check the grounding.
2. Contact MODENA
Customer Care for repair.
“ELCB” indicator light is
twinkling flicker (EI 2 W).
Electricity leaks
Contact MODENA Customer
Care for repair.
Screen of EI 2D B
display E1
“Power” indicator light
is twinkling flicker (EI 2
W)
Temperature sensor is
damaged
Change the temperature
sensor.
PART 6: TROUBLESHOOTING

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Model
EI 2D B
EI 2 W
Rated Voltage / Frequency
220V / 50/60Hz
Rated Power
2400W
Rated Current
0～11A
Minimum Flow Rate
1.5 Liter/Minute
Water Output Temperature
30 ~ 55 °C
Working Pressure
0.03 ~ 0.3 MPa
Protection Class
I
IP Rating
I
P
2
5
Product Size
406 × 232 × 103 mm
Color
Brown
White
Temperature Display
Yes
No
Specifications of this appliance may change without notice to improve the quality of the
product. Figures in this manual are schematic and may not match your product exactly.
Values stated on the machine labels or in the documentation accompanying it are obtained
in laboratory in accordance with the relevant standards. Depending on operational and
environmental conditions of the appliance, values may vary.
PART 7: SPECIFICATION

16
EI 2D B
EI 2 W
APPENDIX: WIRING DIAGRAM
1. Thermal Cut-out
2. Terminal Block
3. Heating Element
4. Flow Switch
5. Silicon Control
6. Main Control Board
7. Display Board
1. Thermal Cut-Out
2. Terminal Block
3. Heating Element
4. Flow Switch
5. Silicon Control
6. Main Control Board
7. Indicator Light Board

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