Mitsubishi Electric ecodan EHPT Series User manual

English
OPERATION MANUAL
DRIFTSMANUAL
DRIFTSMANUAL
MANUAL DE OPERAÇÃO
ǼīȋǼǿȇǿǻǿȅȅǻǾīǿȍȃȋȇǾȈǼȍȈ
ISTRUZIONI DI FUNZIONAMENTO
MANUAL DE INSTRUCCIONES
BEDIENINGSHANDLEIDING
MANUEL D’UTILISATION
BEDIENUNGSHANDBUCH Deutsch
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ǼȜȜȘȞȚțȐ
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PER L’UTENTE
VOOR DE GEBRUIKER
PARA EL USUARIO
FÜR BENUTZER
POUR L’UTILISATEUR
FÖR ANVÄNDAREN
TIL BRUGER
PARA O UTILIZADOR
īǿǹȉȅȃȋȇǾȈȉǾ
FOR USER
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UPUTSTVO ZA RUKOVANJE
Cylinder unit
EHPT series
ERPT series
EHST series
ERST series
Hydrobox
EHSD series ERPX series
ERSC series ERSE series
ERSD series ERSF series
FTC BOX
PAC-IF08 series

1
en
1. Safety Precautions ........................................... 2
2. Introduction....................................................... 3
3. Technical information ...................................... 3
&XVWRPLVLQJ6HWWLQJVIRU<RXU+RPH............. 4
5. Service and Maintenance................................. 9
6. Serial number.................................................... 9
Abbreviations and glossary
No. Abbreviations/Word Description
1 Weather compensation curve mode Space heating/cooling incorporating outdoor ambient temperature compensation
2 Cooling mode 6SDFHFRROLQJWKURXJKIDQFRLOVRUXQGHUÀRRUFRROLQJ
3 Cylinder unit Indoor unvented DHW tank and component plumbing parts
4 DHW mode Domestic Hot Water heating mode for showers, sinks, etc.
5 Flow temperature 7HPSHUDWXUHRIWKHZDWHULQWKHVXSSO\ÀRZSLSH
6 Freeze stat. function Heating control routine to prevent water pipes freezing
7 FTC Flow Temperature Controller, the circuit board in charge of controlling the system
8 Heating mode 6SDFHKHDWLQJWKURXJKUDGLDWRUVRUXQGHUÀRRUKHDWLQJ
9 Hydrobox ,QGRRUXQLWKRXVLQJWKHFRPSRQHQWSOXPELQJSDUWV12'+:WDQN
10 Legionella Bacteria potentially found in plumbing, showers and water tanks that may cause Legionnaires disease
11 LP mode Legionella Prevention mode – a function on systems with water tanks to prevent the growth of legionella bacteria
12 Packaged model 3ODWHKHDWH[FKDQJHU5HIULJHUDQW:DWHULQWKHRXWGRRUKHDWSXPSXQLW
13 PRV Pressure Relief Valve
14 Return water temperature Temperature of the water in the pipe system after heat or cool has been released
15 Split model 3ODWHKHDWH[FKDQJHU5HIULJHUDQW:DWHULQWKHLQGRRUXQLW
16 TRV Thermostatic Radiator Valve – a valve on the entrance or exit of the radiator panel to control the heat output
Contents For safe and correct use, please read this operation manual thoroughly before operating the cylinder unit and
the hydrobox. English is the original language. The other languages versions are translations of the original.
https://wwwl2.mitsubishielectric.com/
Manual Download
Go to the above website to download manuals, select model name,
then choose language.

2
Safety Precautions
1
en
:$51,1*
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• NEVER block discharges from emergency valves.
• Do not operate the unit without emergency valves and thermostatic cut-outs being operational. If in doubt contact your installer.
• Do not stand on or lean on unit.
• Do not place objects on top or below the unit and observe service space requirements when placing objects next to the unit.
• Do not touch the unit or controller with wet hands as electric shock may result.
• Do not remove the panels of the unit or try to force objects inside the unit’s casing.
• Do not touch protruding pipework as it may be very hot and cause burns to the body.
• Should the unit start vibrating or making abnormal noises stop operation, isolate from the power supply and contact the installer.
• Should the unit start to produce any burning smells stop operation, isolate from the power supply and contact the installer.
• Should water be visibly being discharged through the tundish stop operation, isolate from the power supply and contact the installer.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
• Children should be supervised to ensure that they do not play with the appliance.
• In the case of a refrigeration leak, stop the operation of the unit, thoroughly ventilate the room and contact the installer.
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lines. Do not mix it with any other refrigerant and do not allow air to remain in the lines. If air is mixed with the refrigerant, then it can be the cause of ab-
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case, this could lead to a serious impediment to securing product safety.
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• This appliance is primarily intended for domestic use. For commercial applications this appliance is intended to be used by expert or trained users in
shops, in light industry and on farms, or for commercial use by lay persons.
• Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
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operating electric heater).
• Do not pierce or burn.
• Be aware that refrigerants may not contain an odour.
CAUTION
• Do not use a sharp object to handle the touch screen of the main remote controller as this will cause damage or scratch the touch screen.
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• Follow the instructions provided in this manual and local regulations when using this unit.
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Used in this manual
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Precautions listed under this title should be observed to prevent
injury or death to the user.
CAUTION:
Precautions listed under this title should be observed to prevent
damage to the unit.
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5LVNRI¿UH
This mark is for R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit.
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Read the OPERATION MANUAL carefully before operation.
Service personnel are required to carefully read the OPERATION MANUAL and INSTALLATION MANUAL before operation.
Further information is available in the OPERATION MANUAL, INSTALLATION MANUAL, and the like.

3
Safety Precautions
1
en
Introduction
2
The purpose of this user manual is to inform users how their air source heat
pump system works, how to run the system at its most efficient and how to
change settings on the main remote controller.
This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction con-
cerning the use of the appliance by a person responsible for their safety.
Children should be supervised to ensure they do not play with the appli-
ance.
This user manual should be kept with the unit or in an accessible place for
future reference.
Technical information
3
Model name E**T**C/X-*M**E*
E**C/X-*M**E E**T**D/F-*M**E E*SD/F-*M**E ERSE-*M*EE
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Disposal of the Unit
Note: This symbol mark is for EU countries only.
This symbol mark is according to the directive 2012/19/EU
Article 14 Information for users and Annex IX, and/or to the
directive 2006/66/EC Article 20 Information for end-users and
Annex II.
Your Mitsubishi Electric products have been manufactured with
high quality materials and components which can be recycled
and/or reused. The symbol in Figure 1.1 means that electrical and
electronic equipment, batteries and accumulators at the end of
their life, should be disposed of separately from your household
waste.
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symbol means that the battery or accumulator contains a heavy metal at a certain
concentration. This is indicated as follows;
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In the European Union there are separate collection systems for used electrical
and electronic products, batteries and accumulators.
Please dispose of this equipment, batteries and accumulators at your local com-
munity waste collection/recycling centre according to your local regulations.
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disposal.
Please, help us to conserve the environment we live in.
<Figure 1.1>

Zone
°C °C °C
Zone DHW
°C °C °C
+
Customising Settings for Your Home
4
4
en
Main remote controller
To change the settings of your heating/cooling system, please use the main remote controller located on the wall or the front panel of the cylinder unit or hydrobox. The fol-
lowing is a guide to viewing the main settings. Should you require more information, please contact your installer or local Mitsubishi Electric dealer. Some functions are not
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Note: The terms displayed on the remote controller are enclosed in square brackets.
No. Icons Description
1
Alert (for multiple outdoor units con-
WURO
Touching the menu icon displays
error codes.
J1 Alert
Error codes are displayed.
2
SD card is inserted. Normal opera-
tion
SD card is inserted. Abnormal opera-
tion
3
Heating mode
Cooling mode
4Holiday schedule is activated.
5Legionella prevention mode is run-
ning.
6Smart grid ready is running.
7
Compressor is running.
Compressor is running and defrost-
ing.
Compressor is running and in quiet
mode.
The sound level is shown at left side
of the icon.
Emergency heating
8Electric heater is running.
No. Icons Description
9
Boiler is running.
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10
Schedule
Prohibited
Cloud control
11
Operation
Standby
This unit is in standby whilst other
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ity.
Stop
12 Actual DHW tank temperature values
13
Actual room temperature values
[ -- °C] appears when the unit is not connected
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under control other than Auto Adaptation.
No. Icons Description
14
Weather compensation curve
When the operation stops: Black
During heating operation: Orange
During cooling operation: Blue
*4
Auto Adaptation (Target room tem-
SHUDWXUH
When the operation stops: Black
During heating operation: Orange
)ORZWHPSHUDWXUH7DUJHWÀRZWHP-
SHUDWXUH
When the operation stops: Black
During heating operation: Orange
During cooling operation: Blue
15
DHW icon is displayed when DHW is
enabled.
When the operation stops: Black
During operation: Orange
16
Target temperature values
7KHVHWWDEOHWHPSHUDWXUHGLႇHUVGHSHQGLQJRQ
the control logic.
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screen turns it on again.
• From [Touch screen] in [Setting], the brightness can be adjusted.
• By selecting [Always on] for [Backlight time] from [Touch screen] in [Setting], the backlight stays lit for 30 sec-
onds and after it dims down.
*1 From [Setting], the screen can be switched to the full screen or the base screen.
The base screen does not display the operation icons and the target temperature values.
*2 )URP>'LVSOD\@LQ>6HWWLQJ@WKH/('ODPSFDQEHWXUQHGRQRႇ
*3 Pressing and holding the menu icon IRUVHFRQGVVZLWFKHVWKHORFNPHQXWRRQRႇ
Some functions cannot be edited when the lock menu is on.
(The icon changes to when the lock menu is on.)
*4 Auto Adaptation cannot be selected during the cooling mode.
<Home screen icons>
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123456789 [Menu]*3
LED*2
13
14
10
11
12
16
15

Back
ZZ
Preview
ZZ
°C
A- °C/W °C A°C/W °C A°C/W
Heating
Heating / Cooling
Control logic
Weather compensation curve
Mode
Auto change over
Back
Back Heating / Cooling
Zone
Zone
Schedule
Always off
°C
°C
+
Zone
°C °C °C
Zone DHW
°C °C °C
+
Menu
Back
Schedule Holiday
Setting
On/Off
Energy
Service
Back Heating / Cooling
Zone
Zone
Schedule
Always off
°C
°C
+
Eco
Start
°C
DHW
Boost
Back Next
Customising Settings for Your Home
4
5
en
General Operation
In general operation, the screen displayed on the main remote controller will be
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This screen shows the target temperature, space heating mode, DHW mode (if
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mode, and the date and time.
Screen switching
Touch each area on the home screen to access [Heating / Cooling], [DHW], or
[Menu].
• [Heating / Cooling]: Touch the area surrounded by dotted lines in the left.
• [DHW]: Touch the area surrounded by double lines in the right.
• [Menu]: Touch the main menu icon .
The following items can be edited in each screen.
• [Heating / Cooling]: Temperature settings for [Zone 1] and [Zone 2], editing of
various settings (from the edit icon VZLWFKLQJ>6FKHGXOH@WRRQRႇVZLWFK-
LQJ>$OZD\V2ႇ@WRRQRႇ
•>'+:@6ZLWFKLQJWKH(FRPRGHWRRQRႇWHPSHUDWXUHVHWWLQJVRI'+:VWDUW-
ing/cancelling the Boost operation
• [Menu]: Various settings ([Schedule], [Holiday], [Energy], [Setting], [Service],
DQG>2Q2II@
Note:
State description indicated by toggle.
Active; , Inactive;
[Heating / Cooling]
The heating/cooling menus deal with space heating/cooling using normally either
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lation.
• Edit icon in the upper right: [Control logic], [Weather compensation curve],
[Mode], and [Auto change over] can be set.
• [Zone 1] / [Zone 2]: The target temperature can be changed by +/-.
• [Schedule]: It can be activated/deactivated by the toggle ( / 7RXFK-
ing the edit icon switches the screen to the schedule setting.
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• [Auto change over]: When the toggle is on, the operation switches to heating/
cooling automatically based on the outdoor temperature.
There are 3 heating modes available and 2 cooling modes.
Ɣ+HDWLQJURRPWHPSHUDWXUH$XWRDGDSWDWLRQ(
Ɣ+HDWLQJÀRZWHPSHUDWXUH(
ƔHeating weather compensation curve ( 
ƔCoolingÀRZWHPSHUDWXUH(
ƔCooling weather compensation curve ( 
Heating room temperature (Auto adaptation)
Auto adaptation measures the room temperature and outside air temperature,
WKHQFDOFXODWHVWKHUHTXLUHGKHDWLQJFDSDFLW\IRUWKHURRP7KHZDWHUÀRZWHP-
perature is automatically controlled according to the required heating capacity.
Flow temperature
7KHWHPSHUDWXUHRIWKHZDWHUÀRZLQJWRWKHFLUFXLWLVVHWE\WKHLQVWDOOHUWREHVW
suit the space heating/cooling system design, and user’s desired requirements.
:HDWKHUFRPSHQVDWLRQFXUYH
As the seasons change, space heating/cooling demands typically change. To pre-
YHQWWKHKHDWSXPSIURPSURGXFLQJH[FHVVLYHÀRZWHPSHUDWXUHVIRUWKHSULPDU\
FLUFXLWWKHZHDWKHUFRPSHQVDWLRQFXUYHPRGHFDQEHXVHGWRPD[LPLVHHႈFLHQF\
and reduce running costs.
7KHZHDWKHUFRPSHQVDWLRQFXUYHLVXVHGWRUHVWULFWWKHÀRZWHPSHUDWXUHRIWKH
primary space heating circuit dependent on the outdoor temperature. The FTC
uses information from both an outdoor temperature sensor and a temperature
sensor on the primary circuit supply to ensure the heat pump is not producing
H[FHVVLYHÀRZWHPSHUDWXUHVLIWKHZHDWKHUFRQGLWLRQVGRQRWUHTXLUHLW
Your installer will set the parameters of the graph depending on local conditions
and type of space heating/cooling used in your home. It should not be necessary
IRU\RXWRDOWHUWKHVHVHWWLQJV,IKRZHYHU\RX¿QGWKDWRYHUDUHDVRQDEOHRSHUDW-
ing period the space heating/cooling is not heating/cooling or is overheating/too
cold your home, please contact your installer so they can check your system for
any problems and update these settings if necessary.
[Menu]
>'+:@
[Heating / Cooling]
[Heating / Cooling]
[Preview]
[Heating / Cooling]
[Home screen]
Touch

Customising Settings for Your Home
4
6
en
[Room sensors]
For [Room sensors], it is important to choose the correct room sensor depending
on the heating and cooling mode the system will operate in.
1. From [Setting], select [Room sensors].
2. When 2-zone temperature control is active and wireless remote controller are
available, select [Zone sensor selection], and then select zone No. to assign
each wireless remote controller.
3. From [Zone 1 programme] or [Zone 2 programme], select the room sensor and
the schedule to be used for each zone.
After completing the setting of each programme, touch the confirm icon to
save the settings.
The schedule settings can be changed up to 4 times within 24 hours.
Control option *
Corresponding settings
room sensor
Zone 1 Zone 2
A
=RQH $XWR$GDSWDWLRQ7DUJHWURRPWHPSHUDWXUH
=RQH :HDWKHUFRPSHQVDWLRQFXUYHRUÀRZWHP-
perature control
RC 1~8
(Wireless
remote
FRQWUROOHU
*1
B
=RQH $XWR$GDSWDWLRQ7DUJHWURRPWHPSHUDWXUH
=RQH :HDWKHUFRPSHQVDWLRQFXUYHRUÀRZWHP-
perature control
TH1
(Room
temperature
thermistor
RSWLRQ
*1
C
=RQH $XWR$GDSWDWLRQ7DUJHWURRPWHPSHUDWXUH
=RQH :HDWKHUFRPSHQVDWLRQFXUYHRUÀRZWHP-
perature control
MainRC
(Main
remote
FRQWUROOHU
*1
D
=RQH :HDWKHUFRPSHQVDWLRQFXUYHRUÀRZWHP-
perature control
=RQH :HDWKHUFRPSHQVDWLRQFXUYHRUÀRZWHP-
perature control
*1 *1
* Refer to the website manual for details.
*1RWVSHFL¿HGLIDORFDOO\VXSSOLHGURRPWKHUPRVWDWLVXVHG
5RRP5&LIDZLUHOHVVUHPRWHFRQWUROOHULVXVHGDVDURRPWKHUPRVWDW
'RPHVWLF+RW:DWHU>'+:@
The domestic hot water and legionella prevention menus control the operation of
DHW tank heat ups.
[Eco]
Eco mode can be activated/deactivated by the toggle ( / (FRPRGH
takes a little longer to heat the water in the DHW tank but the energy used is re-
duced. This is because heat pump operation is restricted using signals from the
FTC based on measured DHW tank temperature.
Note:
The actual energy saved in Eco mode will vary according to outdoor ambi-
ent temperature.
[Boost]
The boost DHW function is used to force the system to operate in DHW mode. In
normal operation the water in the DHW tank will be heated either to the set tem-
SHUDWXUHRUIRUWKHPD[LPXP'+:WLPHZKLFKHYHURFFXUV¿UVW+RZHYHUVKRXOG
there be a high demand for hot water, boost DHW function can be used to pre-
vent the system from routinely switching to space heating/cooling and continue to
provide DHW tank heating.
The boost DHW operation can be started or cancelled by the [Start]/[Cancel] but-
WRQLQWKH>'+:@VFUHHQ$IWHUWKH'+:RSHUDWLRQ¿QLVKHVWKHV\VWHPZLOODXWR-
matically return to normal operation.
[Menu]
The following items can be set.
• [Schedule] • [Setting]
• [Holiday] • [Service]
• [Energy] •
>2Q2ႇ@:KHQWKHSRZHULVRႇWKHLFRQFKDQJHVWR .
*:KHQWKHV\VWHPLVVZLWFKHGRႇRUWKHSRZHUVXSSO\LVGLVFRQQHFWHGWKHLQGRRU
XQLWSURWHFWLRQIXQFWLRQHJIUHH]HVWDWIXQFWLRQZLOO127RSHUDWH3OHDVHEH-
ware that without these safety functions enabled the indoor unit may potentially
become exposed to damage.
Settings
Date / Time
Display
Language
Room sensors
Back
Eco
Start
°C
DHW
Boost
Back Next
Room sensors
Zone sensor selection
Zone
Zone
Back
programme
programme
Zone sensor selection
RC Zone
Zone
Zone
RC
RC
RC
Back
Zone
Programme RC
RC
- MainRC
- MainRC
Programme
Programme
Programme
Back
programme
-
-
>'+:@
[Settings]
[Room sensors]
[Zone sensor selection]
[Zone 1 programme]

Customising Settings for Your Home
4
7
en
[Schedule]
From [Menu], touch [Schedule] to access the [Schedule] menu.
[Seasonal]
You can categorise months into 2 seasons.
You can activate/deactivate the heating/cooling operation in each season.
1. From [Schedule], select [Seasonal].
2. 6HOHFWWKHSHULRGRI>6HDVRQ@LQOLJKWJUHHQ
3. The period other than [Season 2] is selected as [Season 1] automatically.
4. Touch [Next] to activate/deactivate the heating/cooling operation with the tog-
gle ( / 
Back Next
Season
Jan
--- ---
ࢍ
ࢍ
Dec
Season
Seasonal
JunMay
DecNov
Apr
Oct
Mar
Sep
Feb
Aug
Jan
Jul
[Heating]
You can set 4 programmes of heating schedule in each day of the week.
It can be set during Auto Adaptation setting or when the remote controller is con-
nected.
1. From [Schedule], select [Heating].
2. Touch the edit icon in the upper right of the screen to make it editable.
3. 6HOHFWWKHGD\VRIWKHZHHN\RXZDQWWRVFKHGXOH
*7KHGD\V\RXVHOHFWHGWXUQVWROLJKWJUHHQ
4. Select the programme you want to schedule.
5. Set the starting time and the target temperature by +/-.
6. 7RXFKWKHFRQ¿UPLFRQ in the upper right of the screen to save the settings.
*<RXFDQFRQ¿UPWKHVHWWLQJVRIHDFKGD\RIWKHZHHNRQWKH>+HDWLQJVFKHG-
ule zone] screen.
Note:
•The [Heating schedules] and the [Cooling schedules] are set in the same
way. However, [Cooling schedules] can only be set when the room re-
mote controller is connected.
•7KH>+HDWLQJVFKHGXOHV@DQGWKH>'+:VFKHGXOH@DUHVHWLQWKHVDPH
way.
2Q>'+:VFKHGXOH@VHWWLQJVKRZHYHU\RXZLOOVHOHFWWKHWLPH\RXZDQW
to prohibit the operation.
•Touching the trash box icon on the [Programme] screen in [Heating
VFKHGXOHV@RURQWKH>3URKLELWHG@VFUHHQLQWKH>'+:VFKHGXOH@GHOHWHV
each setting.
•2QWKH>+HDWLQJVFKHGXOHV@DQG>'+:VFKHGXOH@VFUHHQWRXFKLQJWKH
FRQ¿UPLFRQ in the upper right saves the setting.
Back
Sat SunFriThuWedTueMon
Heating schedule zone
Programme °C
°C
°C
Programme
Programme
Back Heating schedule zone
Programme °C
°C
°C
Programme
Programme
Sat SunFriThuWedTueMon
Save the settings.
Schedule
Seasonal
DHW
Heating
Back
Cooling
[Schedule]
[Seasonal]
>+HDWLQJVFKHGXOH]RQH@3UHYLHZ
>+HDWLQJVFKHGXOH]RQH@(GLW

Customising Settings for Your Home
4
8
en
[Holiday]
+ROLGD\PRGHFDQEHXVHGWRNHHSWKHV\VWHPUXQQLQJDWORZHUÀRZWHPSHUDWXUHV
and thus reduced power usage whilst the property is unoccupied. Holiday mode
FDQUXQHLWKHUÀRZWHPSHUDWXUHURRPWHPSHUDWXUHKHDWLQJZHDWKHUFRPSHQVD-
WLRQFXUYHKHDWLQJDQG'+:DOODWUHGXFHGÀRZWHPSHUDWXUHVWRVDYHHQHUJ\LI
the occupier is absent.
<Editing holiday mode>
• [Schedule]: It can be activated/deactivated by the toggle ( / 
•7KHHႇHFWLYHSHULRGRI>+ROLGD\@FDQEHVHWE\VHOHFWLQJWKHVHFRQGOLQH
• [Heating / Cooling]: It can be activated/deactivated by the toggle ( / 
• [DHW]: It can be activated/deactivated by the toggle ( / 
[Energy]
Page 1 ; Total consumption and total production energy for the current month are
displayed.
Page 2 ; Year and month consumption/production values are displayed.
Note:
If a certain accuracy is required for the monitoring, the method to display
captured data from external energy meter(s) should be set up. Contact your
installer for further details.
[Setting]
From [Menu], touch [Setting] to access the [Setting] menu.
From [Setting], the following items can be edited.
• [Date/time]
•>'LVSOD\@)XOOVFUHHQ%DVHVFUHHQ/('2Q2ႇ&)
• [Language]
• [Room sensors]
• [Contact number]
• [Touch screen] ([Calibrate screen]*1, [Clean screen]*2, [Brightness], and
>%DFNOLJKWWLPH@
*1 Touching the 9 dots displayed on the screen starts calibration.
To properly calibrate the touch panel, use a pointy but not sharp object
to touch the dots.
* A sharp object may damage or scratch the touch screen.
*2 <RXFDQZLSHWKHVFUHHQZKLOHWRXFKRSHUDWLRQVDUHLQYDOLGIRUVHF-
onds.
:LSHZLWKDVRIWGU\FORWKDFORWKVRDNHGLQZDWHUZLWKPLOGGHWHUJHQW
or a cloth dampened with ethanol. Do not use acidic, alkaline, or organic
solvents.
Touch the home icon in the upper right to return to the home screen.
Holiday
Schedule
/Sep/ --/---/----
Heating / Cooling
DHW
Back
ࢍ
Holiday schedule
Start
End
dd mm yyyy
dd mm yyyy
Back
-- -- ----
Touch
[Service]
The service menu is password protected to prevent accidental changes being
PDGHWRWKHRSHUDWLRQVHWWLQJVE\XQDXWKRULVHGXQTXDOL¿HGSHUVRQV
Energy
Production
Consumption
kWh
Back
kWh
Consumption
Back
Feb kWh
kWh
kWh
kWh
Jan
Dec
[Energy] Page 1
[Holiday]
[Holiday schedule]
[Energy] Page 2
[Settings] Page 1
[Settings] Page 2
Settings
Date / Time
Display
Language
Room sensors
Back
Settings
Contact number
Touch screen
2/2
Back

Service and Maintenance
5
9
en
Troubleshooting
The following table is to be used as a guide to possible problems. It is not exhaustive and all 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 plugged.
Fault symptom Possible cause Solution
Cold water at taps
V\VWHPVZLWK'+:WDQN
6FKHGXOHGFRQWURORႇSHULRG Check schedule settings and change if necessary.
All hot water from DHW tank used Ensure DHW mode is operating and wait for DHW tank to re-heat.
Heat pump or electric heaters not working 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 heat emitters Contact installer.
The room in which the temperature sensor is located is
DWDGLႇHUHQWWHPSHUDWXUHWRWKHUHVWRIWKHKRXVH
Reposition the temperature sensor to a more suitable room.
Battery problem wireless remote controller only &KHFNWKHEDWWHU\SRZHUDQGUHSODFHLIÀDW
Malfunction of pump or mixing valve Contact installer.
Valves on heating system are closed. Open the valves.
The cooling system does not cool
down to the set temperature. (ONLY
IRU(5VHULHV
When the water in the circulation circuit is unduly hot,
Cooling mode starts with a delay for the protection of
the outdoor unit.
Normal operation no action necessary.
:KHQWKHRXWGRRUDPELHQWWHPSHUDWXUHLVVLJQL¿FDQWO\
low, Cooling mode does not start running to avoid freez-
ing of the water pipes.
If the freeze stat. function is not necessary, contact installer to change the
settings.
After DHW operation room tempera-
ture rises a little.
At the end of the DHW mode operation the 3-way valve
diverts hot water away from the DHW tank into space
heating circuit. This is done to prevent the cylinder unit
components from overheating. The amount of hot water
directed into the space heating circuit is dependent on
the type of system and the pipe run between the plate
heat exchanger and the cylinder unit.
Normal operation no action necessary.
Heating emitter is hot in the DHW
PRGH7KHURRPWHPSHUDWXUHULVHV
The 3-way valve may have foreign objects in it, or hot
ZDWHUPD\ÀRZWRWKHKHDWLQJVLGHGXHWRPDOIXQFWLRQV
Contact installer.
Schedule function inhibits the sys-
tem from operating but the outdoor
unit operates.
Freeze stat. function is active. Normal operation no action necessary.
Pump runs without reason for short
time.
Pump jam prevention mechanism to inhibit the build up
of scale.
Normal operation no action necessary.
Mechanical noise heard coming from
indoor unit
+HDWHUVVZLWFKLQJRQRႇ Normal operation no action necessary.
3-way valve changing position between DHW and
heating mode.
Normal operation no action necessary.
Noisy pipework Air trapped in the system 7U\EOHHGLQJUDGLDWRUVLISUHVHQW,IWKHV\PSWRPVSHUVLVWFRQWDFWLQVWDOOHU
Loose pipework Contact installer.
Water discharges from one of the
relief valves
The system has overheated or overpressurised 6ZLWFKRႇSRZHUWRWKHKHDWSXPSDQGDQ\LPPHUVLRQKHDWHUVWKHQFRQ-
tact installer.
Small amounts of water drip from
one of the relief valves.
Dirt may be preventing a tight seal in the valve Twist the valve cap in the direction indicted until a click is heard. This
ZLOOUHOHDVHDVPDOODPRXQWRIZDWHUÀXVKLQJGLUWIURPWKHYDOYH%HYHU\
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.
An error code appears in the main
remote controller display.
The indoor or outdoor unit is reporting an abnormal
condition
Make a note of the error code number and contact installer.
Heat pump is forced to turn ON and
OFF.
6PDUWJULGUHDG\LQSXW,1DQG,1LVXVHGDQG
VZLWFKRQDQGRႇFRPPDQGVDUHLQSXW
Normal operation no action necessary.
<Power failure>
The Date/Time will be saved for 3 days with no power.
Serial number
6
ŶThe serial number is indicated on the SPEC NAME PLATE.
<HDURIPDQXIDFWXUHZHVWHUQFDOHQGDU
0RQWKRIPDQXIDFWXUH$%&'()*+-./0
Sequential number for each unit: 00001–99999