Modena Casella series Owner's manual

User Manual Book

(Electric Storage Water Heater)

Casella Series

ES 10D, ES 15D, ES 30D

ES 10DR, ES 15DR, ES 30DR

Snella Series

ES 20SR

Thank you for your trust in choosing MODENA products for your household

needs. With your satisfaction as our priority, we constantly aim to deliver

stylishly designed products equipped with state-of-the-art technology to

assist you in your daily activities.

This is your guidebook containing everything you need to know about our

product. Please reach us if you need further assistance or other information

via our Customer Care or our official website www.MODENA.com.

CONTENTS PAGE.

•Introduction 2

•Part 1 : Important Safety Information 4

•Part 2 : Product Introduction 5

•Part 3 : Installation 8

•Part 4 : How to Use 11

•Part 5 : Maintenance 21

•Part 6 : Troubleshooting 23

•Part 7 : Disposal of Used Product 24

•Part 8 : Specification 24

General Remark

The installation and maintenance has to be done by qualified professionals or authorized technicians

of MODENA. MODENA is not responsible for any damage or malfunction caused by wrong

installation or the failure of following instructions that are included in this manual book. For more

information regarding to installation and maintenance guidelines in details, please refer to below

chapters.

Cautions

Before installing this electric storage water heater, check and ensure that the (power) electrical socket

is properly functional and reliably grounded. Otherwise, the electrical storage water heater cannot be

installed and used. Do not use an extension cord if there is a problem with the power socket. Incorrect

installation and use of this electrical water heater may result in serious injuries and loss of property.

Special Cautions

Warning: If the supply cord is damaged, it must be replaced by MODENA technicians, MODENA

service agent or similarly qualified persons in order to avoid a hazard.

The supply socket must be grounded (earthed) reliably. The rated current of the power socket

shall not be lower than 16A. The socket and plug shall be kept dry to prevent electrical leakage.

The installation height of the supply socket shall not be lower than 1.8m.

The wall in which the electrical storage water heater is installed shall be able to bear the twice

bigger load than the weight of this water heater filled fully with water without distortion and cracks.

Otherwise, other strengthening measures shall be adopted.

The pressure relief valve attached with the water heater must be installed at the cold water inlet

of this heater (Picture 1), and make sure it is not exposed in the foggy. The water may be flowed

out from the pressure relief valve, so the outflow pipe must open wide towards the air; The

pressure relief valve need to be checked and cleaned regularly, so as to make sure it will not be

blocked.

When using the heater for the first time (or the first use after maintenance), the heater cannot be

switched on until it has been filled fully with water. When filling the water, at least one of the outlet

valves at the outlet of the heater must be opened to exhaust the air. This valve can be closed

after the heater has been filled fully with water.

This water heater is not intended to be used by persons with special needs for their physical,

sensory or mental capabilities, or with lack of experience and knowledge (including children),

unless they have been given the supervision or instructions concerning the use of the appliance

Part 1: Important Safety Information

Picture 1

by a person who responsible for their safety. Children should be supervised to ensure that they

are not playing with this water heater.

During the heating process, there may be drops of water dripping from the pressure relief hole.

This is a normal case. If there is an over-leaking, please contact MODENA customer call center

for repair. This pressure relief hole shall, under no circumstances, be blocked; otherwise, the

heater may be damaged, even resulting on accidents.

The drainage pipe connected to the pressure release hole must be kept sloping downwards.

Since the water temperature inside the heater can reach up to 75oC, the hot water must not be

directly flowed to human bodies at the initial use. Adjust the water temperature to a suitable

temperature to avoid scalding.

If the flexible power supply cord is damaged, the special supply cord provided by MODENA must

be selected, and replaced by MODENA maintenance personnel (technician).

If any parts and components of this electrical storage water heater are damaged please contact

MODENA Call Center for repair.

Caution: In order to avoid a hazard due to inadvertent resetting of the thermal cut-out, this

appliance must not be supplied through an external switching device, such as a timer, or

connected to a circuit that is regularly switched on and off by the utility.

For the correct operation of the appliance, it is necessary to pay attention that the maximum inlet

water pressure is 0.8MPa (0.8Bar), and the minimum inlet water pressure is 0.015MPa (0.15Bar).

When the water pressure is over 0.8MPa, this will be automatically activated the safety valve, the

water may drip from the discharge pipe of the pressure-relief device (Picture 2). Therefore, this

pipe must be left open towards the air (atmosphere). The pressure-relief device should be

operated/activated regularly to remove limestone deposits and to ensure that the pipe is free from

blockage;

Draining away the water inside the inner container can be done from the pressure relief valve.

Twist the thread screw of the pressure relief valve off, and lift the drain handle upwards (Picture

3). A discharge pipe connected to the pressure-relief device has to be installed in a continuously

downward direction and in a frost-free environment.

Nomenclature (The Terms to Classified Product Types and Names)

ES XXD, ES XXDR, ES XXSR

ES = the product code of the electric storage water heater;

XX = the capacity of the water heater (L);

D / DR /SR = the series of the water heater;

Part 2: Product Introduction

Picture 2

Picture 3

Technical Performance Parameters

Brief Introduction of Product Structure

Picture 4

(Note: All dimensions are in mm)

Internal Wiring Diagram

Picture 5

Installation Instruction

This electric storage water heater shall be installed on a solid wall. If the strength of the wall

cannot bear the load equal to two times of the total weight of the heater filled fully with water, it is

then necessary to install a special support. In case of the hollow bricks wall, ensure to fill it with

concrete cement completely, and use the anchor fastener bolt in case of the hebel wall.

After selecting a proper location, install the mounting bracket to a solid wall.

The methods of installation ES XXD & ES XXDR: On the wall that is strong enough, drill the hole

with depth of approximately 45mm. Use the anchor fastener bolts provided along with the product

for securing the bracket (Picture 7a) firmly in the wall.

Align the slots on the back of the water heater with the projections on the bracket and install the

water heater on the bracket until it is locked.

Picture 6

Part 3: Installation

Methods of installation ES 20SR: After selecting a proper location, determine the positions of

the two installed holes that is used for the expansion bolts with the hook (300mm), Make two

holes on the wall with the corresponding depth by using a chopping bit with the size matching

the expansion bolts attached with the machine, insert the Fischer screw (M8*80), tighten the

nuts to fix firmly, and then hang the electrical storage water heater on it (see Picture 7b).

Connect to power plug to the Installed supply socket on the wall. The power supply for this

appliance is 220V. The supply socket is recommended to be placed on the right above the

heater. The height of the supply socket from the ground should not be less than 1.8m (see

Picture 8). If there is a problem on the power cord, it should be replaced by MODENA

agencies or qualified person who is able to do the repairment so as to ensure the safety.

If the size of the bathroom is too small, the water heater can be installed at another place.

However, the water heater shall be installed closely to the stand-point of its usage to optimize

the heat of the water.

Picture 7

Picture 7a

Picture 7b

Picture 8

Plumbing Connection

The dimension of each used pipe is G1/2 (”BSP ½”) ; The maximum and minimum pressures

of inlet should use Pa (Bar) as the unit.

Connect the pressure relief valve with the water heater on the inlet of the water heater.

In order to avoid leakage when connecting the plumbing, the rubber seal gaskets provided

with the water heater must be added at the end of the threads to ensure the connection is

leak-proof (see Picture 9).

If the users want to utilize a multi-ways supply system, refer to the method shown in Picture

10 for the connection of the plumbing.

Note:

Please be sure to use the accessories provided by MODENA to install this electric storage water

heater. This electric storage water heater cannot be hung on the bracket until it has been confirmed to

be firm and reliable. Otherwise, this water heater may drop off from the wall, resulting to its damage,

even serious accidents of injury to the user. When determining the locations for the holes of the bolt, it

shall be ensured that there is a clearance not less than 0.2m on the right side of the electric heater,

for the convenient maintenance of this water heater, if necessary.

Part 4: How to Use

Picture 10

Picture 9

Operating Procedure

Check all the piping connection to avoid the leakage case before turning on this electric storage

water heater.

Open one of the outlet valves of the water heater, then, open the inlet valve .to get the water

heater filled with water.

When the water flows out of the outlet pipe it implies that the heater has been filled fully with

water, and the outlet valve can be closed.

Make sure that the tank is fully filled up with water; otherwise it will cause the heating elements to

be damaged. Note: During normal operation, the inlet valve shall be always kept open.

Insert the power plug into the power socket and check the reliability of the leakage protection

device (ELCB). Press the testing button, the indicator light on the power plug should be off, and

the reset button should bounce up; then push down the reset button, the indicator light will turns

on to verify that the leakage protection works well (Picture 11). If the reset button cannot be

pressed during the process of using, the leakage protection device (ELCB) might be error or fails

to work; If the reset button is pressed down and bounce up again, then it shows the power circuit

leaks or the power supply is disconnected.

If the indicator lights up, the thermostat will automatically control the temperature. When the water

temperature inside the heater has reached the set the temperature, it will switch off this water

heater automatically. When the water temperature falls below the set point, the heater will be

turned on automatically to restore the heating.

Operating the Water Heater

A. ES 10D, ES 15D, & ES 30D

Part 4: How to Use

Picture 11

Picture 12

Rotate the knob according to the marking on the knob to increase or decrease the setting

temperature.

The Red “Power” LED and Green “Heating” LED remain ON while there is power to the system.

The Green LED will turns off when the water temperature reaches the user setting, at the end of

the heating phase.

B. ES 10DR

Specific Functions of Button and Display Screen

(1) “ON/OFF” Button

This key acts as an ON/OFF operating key. When this appliance (the water heater) is connected

to the power, the display screen is fully bright for 2s. If the power to the memory function is

disconnected (there is power outage), this appliance will return to the working condition before the

power outage. Otherwise, system will be in the “power-off” state.

When in the power-on state, press “ON/OFF” button to shut down the system.

When in the power-off state, press “ON/OFF” button to turn on the system. In this case, the

memory data at the time of power outage will be restored and the system will enter into the

corresponding working condition.

Notes:

a. The “ON/OFF” button is the highest priority button among all buttons in system. That is, if you

press it under all failure-free working conditions, the system will enter into the power-off state;

no content is displayed in the power-off state.

b. The version number of the software will be displayed after the full-screen display for 2s. (the

double “8” digits shown on the digital screen will turns into 01).

(2) “+” Button (Button on the Remote Controller)

a. This button is used cooperatively with the “BOOK” button to adjust the booked time. The

specific operations are shown in the booking adjustment function.

b. Adjust setting temperature: temperature is adjusted in the range of (Tmin)-(Tmin+1)-

(Tmin+1)……75-(Tmin). The setting temperature will increase by 1oC after “+” button is clicked

for once. Long pressing “+” button will render the setting temperature to increase at the rate of

5oC/s. If no button is pressed within 5s, the system will store the setting temperature

parameters and exit the temperature setting status.

(3) “-” Button (Button on the Remote Controller)

a. This button is used cooperatively with the “BOOK” button to adjust the booked time. The

specific operations are shown in the booking adjustment function.

b. Adjust setting temperature: temperature is adjusted in the range of 75-74-73-…-(Tmin+1)-

(Tmin)-35. The setting temperature will decrease by 1 oC after the “-” button is clicked for once.

Picture 13

Long pressing “-” button will render the setting temperature to decrease at the rate of 5 oC /s. If

no button is pressed within 5s, the system will store the setting temperature parameters and

exit the temperature setting status.

(4) “BOOK” (Heating Time Programming) Button

When the appliance is in the power-on state: press this button to enter into the booked time

setting mode for the heating program. At this moment, the booked time can be set through

pressing “+”or “-” button. The specific operations are shown in the booking function introduction.

This key will be invalid in the power-off state.

(5) LED Light Indicator (ES 10DR);

The Red “Heating” LED will remain ON during the heating process. The Green “Ready” LED will

turn on when the water temperature reaches the user setting at the end of the heating phase;

meanwhile the Red LED turns off.

Detailed Description of Functions

Heating/Heat Preservation Function

The system could identify the heating/heat preservation state and will light up the corresponding

indicator if there is a difference between the actual temperature and the set temperature. When

the water heater is in the heating state, the “HEATING” indicator will lights up (bright green), while

the “READY” indicator lights up (bright red) when in the heat preservation state.

The water heater could be directly heated to the set temperature after it is just started or re-adjust

the temperature. When the set temperature is reached, the water heater will stop heating and

enter into the heat preservation state. If the difference between the actual temperature and the set

temperature is greater than the previous temperature difference, the water will be heated again.

Booking Bath Function

When the appliance is in the power-on state, press the “BOOK” button ( ). Then, the booking

indicator will light up. The system will enter into booked time adjustment state and the digital

display on the tank(tube) will flickers. At this moment, the user could adjust the booked time for

the heating process through pressing “+” button or “-”button

Delay Booking Function

This appliance adopts the delay booking function. By this function, the hot water is available after

“XX” hours (user’s set time). When in the booking (heating time programming) state, the user

cannot only adjust the booked time circularly in the range of “01-02…-24-01” by clicking “+”

button, but also adjust the booking hours circularly in the range of “24-23…-01-24” by clicking “-”

button.

If the “ADJUST” button is long pressed (or “+” or“-”buttons on the remote controller), the time can

be adjusted at a rate of 5 times per second. The operation chart of the booking function is shown

in Picture 14.

Picture 14

Notes:

1. The delay booking cannot set the minutes of the booked time;

2. In the setting process of booked time, the set time shall flicker. In the flickering period:

a. Do not press any button within 5s and then confirms the booking state;

b. Press the “BOOK” button, and then confirm the booking mode immediately;

When in the booking state, the temperature setting can be adjusted. However, the heating

function and the return difference of heating function can be identified only in booking heating

process (namely 1 hour). Besides, the “READY” indicator only lights up in the period when the

actual temperature decreases by 5oC after booking heating is finished.

3. The set temperature could be adjusted under the booking state;

4. The booking for one time is valid repeatedly;

5. The booking indicator is always on during the entire booking process. When in the power-on

state, pressing “BOOK” button will cancel booking function;

6. Upon the completion of the booking setting, the system will pre-heat 1 hour ahead. For instance, if

the user books the water usage for 6 hours later, the system will start heating immediately after 5

hours from the current time. The booking will also be conducted at the same time of tomorrow (24

hours later), and the like. This process is valid for long time.

7. The disconnected power does not affect the booking, and this product has the time memory

function;

Remarks: For ES 10DR, the power supply of the clock module has automatic charging function.

One time charging can maintain the power during the power outage time for about 5 days. The

accuracy of the booking time cannot be guaranteed, if exceeding that period.

Power Outage Memory Function

The system possesses power outage memory function and could remember the working

condition, the set temperature and the relevant information before outage. The system could

return to the working condition before outage automatically after charged with electricity again.

Anti-freezing Protection Function

When in the non-heating state, if the water temperature in the water heater is less than or equal to

6oC, connect the appliance to the corresponding heating tube to conduct heating:

Heating tube P1 Heating tube P2

The water heater could stop heating when the temperature reaches 10oC (the heating mark is not

displayed, i.e., hidden heating).

Factory Setting Function

When in the power off state, if the “BOOK” button and the “POWER” button are pressed for 3s

simultaneously, the display screen will be fully bright and system will enter into the factory setting

mode (buzzer will ring, if any). Then, the system will enter to the “heating/heat preservation” state

after 2s. The factory setting parameters are shown in the following table.

The Basic Parameters of the Factory Setting System

Function

Factory setting parameter

User setting temperature

70℃

Booked time

8 hours

Booking mode

Default cancel

Power

250W(Heating at full speed)

C. ES 15DR & ES 30DR

Specific Functions of Button and Display Screen of ES XXDR Series

(1) “ON/OFF” Button

This key acts as an ON/OFF operating key. When this appliance (the water heater) is connected

to the power, the display screen is fully bright for 2s. If the power to the memory function is

disconnected (there is power outage), this appliance will return to the working condition before the

power outage. Otherwise, system will be in the “power-off” state. When in the power-on state,

press “ON/OFF” button to shut down the system. When in the power-off state, press “ON/OFF”

button to turn on the system. In this case, the memory data at the time of power outage will be

restored and the system will enter into the corresponding working condition.

Notes:

a. The “ON/OFF” button is the highest priority button among all buttons in system. That is, if you

press it under all failure-free working conditions, the system will enter into the power-off state;

no content is displayed in the power-off state.

b. The version number of the software will be displayed after the full-screen display for 2s. (the

double “8” digits shown on the digital screen will turns into 01).

(2) “+” Button (Button on the Remote Controller)

a. This button is used cooperatively with the “BOOK” button to adjust the booked time. The

specific operations are shown in the booking adjustment function.

b. Adjust setting temperature: temperature is adjusted in the range of (Tmin)-(Tmin+1)-

(Tmin+1)……75-(Tmin). The setting temperature will increase by 1oC after “+” button is clicked

for once. Long pressing “+” button will render the setting temperature to increase at the rate of

5oC /s. If no button is pressed within 5s, the system will store the setting temperature

parameters and exit the temperature setting status.

(3) “-” Button (Button on the Remote Controller)

a. This button is used cooperatively with the “BOOK” button to adjust the booked time. The

specific operations are shown in the booking adjustment function.

b. Adjust setting temperature: temperature is adjusted in the range of 75-74-73-…-(Tmin+1)-

(Tmin)-35. The setting temperature will decrease by 1oC after the “-” button is clicked for once.

Long pressing “-” button will render the setting temperature to decrease at the rate of 5oC /s. If

no button is pressed within 5s, the system will store the setting temperature parameters and

exit the temperature setting status.

(4) “MODE” Button

When in the power-on state, press this button to enter into half container/whole container switch,

i.e., half container whole container half container…, and the corresponding indicator will lights

up. If this button is long pressed for 3s, this water heater will enter into the booking mode. At this

time, it is allowed to set booked time via “+” or “-” key. The specific operations are listed in the

booking function introduction. This key will be invalid in the power-off state.

Picture 15

(5) “BOOK” (HEATING TIME PROGRAMMING) Button

When the appliance is in the power-on state: press this button on the remote controller to enter

into the booked time setting mode for the heating program. At this moment, the booked time can

be set through pressing “+”or “-” button. The specific operations are shown in the booking function

introduction. This key will be invalid in the power-off state.

(6) “STERILIZER” Mode

In the power-on state: long press the “+” button and the “-” button simultaneously for 3s. Then,

the digital screen will display sterilizer status (two digits 8 are in a clockwise cycle dynamitic

display); long press “+” “-”keys simultaneously for 3s again to exit the status. The heating

should stop when the temperature reaches 80oC and the antibacterial (sterilizer) mode is

maintained for 5 minutes to indicate that cycle is still in dynamitic display. After 5 minutes, the

system will exit sterilizer mode and return to the previous status.

Instructions:

a. In the sterilizer situation, if the system exit from the sterilizer mode because of the heating

temperature is reached, then it will return to the previous mode. If it exits the sterilizer mode

because long pressing of “MODE” key, then the water heater will enter into the booking status.

b. In the sterilizer situation, the temperature is non-adjustable and double “8” figures flicker for 5s

simultaneously when the user presses “+” or “-” button, without quitting of sterilizer process.

c. It is impossible that the sterilizer mode and the booking mode exit at the same time.

Specifically, the booking can be cancelled by long pressing “+” or “-”button, and the system

enters into the sterilizer status accordingly; the system can also exit the sterilizer status

through long pressing the “MODE” button.

d. If the temperature has reached 80oC (exit the sterilizer mode), long pressing “+” and “-”buttons

simultaneously for 3s. Then the double “8” figures will flickers for 5s and the system will return

to the previous state after 5s.

e. The memory is for the power outage in the sterilizer mode.

f. The sterilizer power is set as the whole container of power heating.