Mitsubishi Electric Ecodan User manual

Follow these easy steps to make the
most of what your Ecodan has to offer
ecodan.co.uk

Introduction to your new Ecodan Heating
System (Air Source Heat Pump)
The instructions in this booklet will enable you to quickly personalise your Ecodan heating
system. This will ensure your renewable heating system will operate to suit both you and
your home. If you require more in depth information and system settings please contact
either your installer or the Mitsubishi Electric Homeowner Helpline. (see back page)
Outdoor unit
Ecodan upgrades freely
available heat energy from
the air and transfers it to the
home to provide hot water
and heating for radiators
and / or underfloor heating.
2
System Overview

Hot water cylinder
The Ecodan outdoor unit provides your home with
a continuous supply of hot water via a dedicated hot
water cylinder. These cylinders are specifically designed
to integrate with the outdoor unit and offer optimum
performance and faster heat up times through the
use of advanced plate heat exchanger technology.
The cylinder unit is used to store your hot water as well as
containing various heating parts essential to operating
your heating system, such as water pumps and
safety valves.
3
Energy efficient
control
In the home
Your hot water and central heating system
is operated by the control panel, which will
either be attached to the front of the cylinder
unit or attached to a wall in your home.
The control panel allows you to customise
the settings to your requirements.
On the move
Control your home’s heating and hot water
from your smartphone, tablet or computer via
the internet with Mitsubishi Electric’s MELCloud
app. More information on how to programme
your control and use your MELCloud app are
explained later in this booklet.
20ºC

4
Main
remote
controller
To change the settings of your heating
system please use the main controller
located on the front panel of the cylinder
unit or on a wall. The following is a quick
guide to viewing the main settings.
Should you require more information
please refer to the instruction booklet
included with the cylinder.
Letter Name Function
A Screen Screen in which all information is displayed.
B Menu Access to main system menu settings for initial set up
and modifications.
C Back Return to previous menu.
D Confirm Used to select or save. (Enter key)
E Power/Holiday If system is switched off, pressing once willturn system on.
Pressing again when the system is switched on will enable
HolidayMode. Holding the button down for 3 secswill turn
the system off.
F1-4 Function keys Used to scroll through menu and adjustsettings.
Function is determined by themenu screen visible on screen A.
Main Controller Parts
F1 F2 F3 F4
A
E
B C D
Main Remote Controller https://youtu.be/6PlCbYRdbso
Homeowner Portal
les.mitsubishielectric.co.uk/homeowner-welcome-pack/getstarted
All how to videos can be found on your homeowner portal

5
No. Name Function
1 Legionella prevention When this icon is displayed Legionella prevention mode is active.
2 Heat pump ‘Heat Pump’ is running Defrosting Emergency heating
3 Electric heater When this icon is displayed the electric heaters are in use.
4 Target temperature Target flow temperature Target room temperature
Compensation curve
5 OPTION Pressing the function button below this icon will display the option screen.
6 + Increase desired temperature using function button 3.
7 - Decrease desired temperature using function button 2.
8 Pressing the function button below this icon switches between
Zone 1 and Zone 2.
9 Information Pressing and holding the function button below this icon displays
the information screen.
10 Space heating mode Heating mode. Zone 1 or Zone 2.
11
Domestic hot water mode Normal or ECO mode.
12 Holiday mode When this icon is displayed ‘Holiday mode’ activated.
13 Timer Prohibited Stand-by Stop Operating
14 Current temperature
Current room temperature Current water temperature of DHW tank
15 Smart grid ready When this icon is displayed, 'Smart grid ready' is active
Controller Display Settings
Main
screen
icons
This display screen
highlights all the functions
available on your contoller.
Please see below an
explanation of each icon.

6
Simple temperature adjustment
To adjust temperatures for your heating
outside of the schedule.
Press F2 to lower the temperature.
Press F3 to raise the temperature.
This can all be completed on the main
display screen.
Turning on priority hot water and heating
From the main homescreen,
press F4 to display the Options screen
To activate forced hot water press F1
To change hot water operating mode press F2
To change space heating mode press F3
View the YouTube video shown below
for more guidance.
Initial Set Up https://youtu.be/59f7VpZl6Zk
F1 F2 F3 F4
F1 F2 F3 F4
General Operation

7
Holiday mode
To set up holiday mode, hold down the power /
holiday button on the bottom right of the control.
Set the dates you are away and ensure the clock
is showing by pressing F1. Finally press the tick
button to confirm your date selection.
Alternatively you can set this on your MELCloud
app. More details on MELCloud is explained on
page 12.
Wireless controller
You may also have a wireless controller, this
controller detects the temperature in the room
so ensure it is in a good location.
The top temperature displayed is the target
temperature and the bottom is the actual
temperature. Use the up and down arrows to
change the target temperature. Hold the tap
button to force the system into hot water mode.
For holiday mode, hold down the suitcase button
and adjust the time with the arrow buttons and
press the suitcase again to confirm.
Holiday Mode https://youtu.be/fN63XaohEew
Wireless Controller https://youtu.be/KypR1WjDarg
F1 F2 F3 F4

8
Save Energy, Save Money
How to operate your system efficiently
The Ecodan provides water at a lower temperature than the gas or oil fired boiler you
may be used to. This means that you may notice some differences between this system
and ones you have used before. Below is a list of the main differences and how these
will affect you.
Radiators will not feel
as hot as on a fossil
fuel boiler system.
This is not a problem for heating as
the radiator temperature is higher than
your desired room temperature.
Please do not hang clothes on the
radiators as it prevents the heat from
passing to the air in the room.
Central heating may
be slower to respond
when you change the
set temperature.
Please ensure you wait sufficient
time before adjusting the controls
again. Be patient.
Difference to Oil/Gas Boiler Implication Advice
Central heating will not
run whilst the hot water
tank is being heated.
Room temperature may
decrease a little during
water tank heat up.
Use the schedule function to heat
water up overnight or during a time
when the home is unoccupied.
Advanced Controls Heating can be tailored
to a your needs and
can result in a more
efficient system.
It is normally more efficient
to run the system in “Room Auto
Adaptation” mode for heating.
To optimise running costs it is advisable the homeowner seeks the most cost effective electricity tariff.
The supply temperature of
the central heating water in
a traditional heating system
is anywhere between 75°C
and 85°C, in the case of low
temperature heating this
temperature is anywhere
between 35°C and 55°C.
This is not only better for
the environment, it is also
a lot cheaper!
How does Ecodan differ to gas and oil heating?
https://youtu.be/OjHtDg_d95U

9
Using energy monitoring
https://youtu.be/f8hv7fMRcsw
Energy monitoring
When the homescreen is displayed, press F4 to
take you to the Options Screen. This will display
the energy monitoring figures on the far right as
shown in the image. The top battery symbol shows
you the total electrical energy consumption. The
bottom battery symbol shows the total heat
energy produced.
To find out more detailed energy monitoring
information on your system, press F4 again.
This information can also be displayed on the MELCloud app.
More details on how to download the MELCloud app is on page 10.
F1 F2 F3 F4

Ecodan FTC - Guide
https://youtu.be/59f7VpZl6Zk
Viewing Main System Menu
To access the main settings menu, press button
B ‘MENU’.
Changing Date and Time
Use F1 and F2 Function Keys to scroll through
the menu list. When ‘Date/Time’ is highlighted
then press CONFIRM to edit.
Use the relevant function keys to edit each
initial setting then press CONFIRM to save
the setting.
To return to the main settings menu press
the BACK button.
From main settings menu use F2 and F3
Function Keys to highlight ‘Initial Settings’
icon and select by pressing button D to
‘CONFIRM’.
The following menus
will be displayed:
Holiday
Initial setting
Service (Password protected)
DHW (Domestic Hot Water)
Heating
Schedule
10
1 Sep 2015 14:57
Date/Time
2015 / 5/25 14:57

Ecodan FTC - Programming hot water and heating timings
https://youtu.be/h6VpATOHbFU
Schedule
When setting up the system your installer should discuss with you your heating and
domestic hot water requirements so that the optimum schedule can be created. Activation
or deactivation of the schedule is set up in the option screen (See page 8). Detailed setting
instructions are available in the instruction booklet provided with the cylinder unit.
From the main settings menu (see page 8) use F2 and F3 Function Keys to highlight the
schedule icon then press CONFIRM.
The schedule sub menu will be displayed.
The icons show the following modes:
Heating
Domestic hot water
Use F2 and F3 Function Keys to move
between mode icons, press CONFIRM to be
shown the PREVIEW screen for each mode.
The PREVIEW screen allows you to view
the current settings. Where a day or days
appear underlined, the settings are the
same for all those days underlined.
Hours of the day are shown as a bar across
the main part of the screen. Where the bar
is solid black, heating/DHW (whichever is
selected) is allowed.
11
1 Sep 2015 12:30
Heating
7
1 Sep 2015 12:30HEATING
MON TUE WED THU FRI SAT SUN
AM 12 3 6 9 12
PM 12 3 6 9 12
7

Melcloud
Monitoring and Controlling your
Heating System Remotely
12
MELCloud Tutorial - How to install and configure MELCloud
https://youtu.be/h05ny0CdaEE
Register now to activate your Mitsubishi Electric
Homeowner Guarantee
and enjoy total peace of mind from the
protection this FREE cover offers.
Easily pair your Ecodan to the internet via its wi-fi adaptor,
download the MELCloud app and enjoy remote control &
monitoring of your Ecodan at home or on the move from
your smartphone, tablet or PC.
Once connected, you can also enjoy the benefits of MELConsole
which provides remote maintenance & technical support
reducing the need of a visit from an engineer
.
Scan QR Code or call
01610 866 6064
Scan QR Code or visit
MELCLOUD.COM
Scan QR Code or call
the Ecodan Helpdesk
01610 866 6064

Troubleshooting
The following is to be used as a guide to possible problems. It is not exhaustive and all
serious problems should be investigated by the installer or another competent person.
Users should not attempt to repair the system themselves. At no time should the
system be operating with the safety devices by-passed or blocked up.
Cold water at taps
Hot water may be scheduled off: Please check schedule settings and alter
if necessary.
All the hot water from tank may be used: Ensure DHW mode is operating and
wait for tank to re-heat.
Heat pump or electric heaters not working: Contact installer.
Water discharges from one of the relief valves
The system has overheated/over pressurised: Please switch off power to the heat
pump and any immersion heaters then contact installer.
Small amounts of water drip from one of the relief valves
Dirt may be preventing a tight seal in the valve: Please twist the valve cap
in the direction indicated until a click is heard. This will release a small amount
of water flushing dirt from the valve. Be very careful, the water released will
be hot. Should the valve continue to drip, contact installer as the rubber seal
may be damaged and need replacing.
Noisy pipework
Air may be trapped in the system: Try bleeding radiators (if present) using
a radiator key, if the symptoms persist contact installer.
Heating system does not get up to set temperature
Prohibit, schedule or holiday mode selected: Check settings and change
as appropriate. Incorrectly sized radiators: Contact installer.
The room in which the temperature sensor is located is at a different
temperature to the rest of the house: Reposition the temperature sensor
to a more suitable room.
13

Troubleshooting
The following is to be used as a guide to possible problems. It is not exhaustive and all
serious problems should be investigated by the installer or another competent person.
Users should not attempt to repair the system themselves. At no time should the system
be operating with the safety devices by-passed or blocked up.
An error code appears in the main controller display
The indoor or outdoor unit is reporting an abnormal condition: Make a note of the
error code number and contact installer.
Pump runs without reason for short time
Pump jam prevention mechanism to inhibit the build up of scale is working.
Normal operation, no action necessary.
Mechanical noise heard coming from cylinder unit
Heaters switching on/off: Normal operation, no action required. 3-way valve
changing position between DHW and heating mode: Normal operation, no action
necessary.
Heating emitter is hot in the DHW mode (the room temperature rises)
The 3-way valve may have foreign objects in it, or hot water may flow to the
heating side due to malfunctions: Contact installer.
‘Smoke’ is blown from the front of the Ecodan in cold weather
This is warm air being blown from the Ecodan to ensure the internal parts don’t
freeze. It is known as the defrost cycle: Normal operation, no action necessary.
Power failure
All settings will be saved for 1 week with no power, after 1 week Date/Time ONLY
will be saved.
14

Notes
15

Homeowner Portal
les.mitsubishielectric.co.uk/homeowner-welcome-pack/getstarted
All how to videos can be found on your homeowner portal
Telephone: [phone] homeowner helpline
email: [email protected]
website: ecodan.co.uk
MELSmart Customer Services & Support: 0161 866 6089
Option 1 - Air Conditioning Technical
Option 2 - Spares
Option 3 - Warranty
Option 4 - Heating Technical
Option 5 - Returns
Option 6 - Product Training & Site Services
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General Enquiries Telephone: [phone]
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Europe B.V. The company reserves the right to make any variation in technical specification to the equipment described, or to withdraw or replace products without prior
notification or public announcement. Mitsubishi Electric is constantly developing and improving its products. All descriptions, illustrations, drawings and specifications in
this publication present only general particulars and shall not form part of any contract. All goods are supplied subject to the Company’s General Conditions of Sale,
a copy of which is available on request. Third-party product and brand names may be trademarks or registered trademarks of their respective owners.
Note: The fuse rating is for guidance only. Please refer to the relevant databook for detailed specification. It is the responsibility of a qualified electrician/electrical engineer to
select the correct cable size and fuse rating based on current regulation and site specific conditions. Mitsubishi Electric’s air conditioning equipment and heat pump systems
contain a fluorinated greenhouse gas, R410A (GWP:2088), R32 (GWP:675), R407C (GWP:1774), R134a (GWP:1430), R513A (GWP:631), R454B (GWP:466), R1234ze
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