Mitsubishi Electric ecodan EHPT20Q-VM2EA Installation Manual page 18

5
System Set Up
Domestic Hot Water (DHW)
►For further detail about operation, refer to Operation manual.
Heating
►For further detail about operation, refer to Operation manual.
Schedule timer
Scheduled timer can be set in two ways, for example; one for summer and the other for winter. (Refer to as "Schedule 1" and
"Schedule 2" respectively.) Once the term (months) for the Schedule 1 is specifi ed, rest of the term will be specifi ed as Schedule 2.
In each Schedule, an operational pattern of modes (Heating / DHW) can be set.
If no operational pattern is set for Schedule2, only the pattern for Schedule 1 will be valid. If Schedule 2 is set to full-year (i.e.
March to Feb.), only the operational pattern for Schedule 2 will be valid.
Follow the procedure described in General Operation (Page 24) for the set up operation.
Setting the schedule timer
The preview screen allows you to view the current settings. In 2-zone heating
operation, press F1 to switch between Zone1 and Zone2. Days of the week are
displayed across the top of the screen. Where day appears underlined the settings
are the same for all those days underlined.
Hours of the day and night are represented as a bar across the main part of the
screen.
Where the bar is solid black, space heating/DHW (whichever is selected) is allowed.
When scheduling heating, button F1 changes the scheduled variable between time
and temperature. This enables a lower temperature to be set for a number of hours e.g.
a lower temperature may be required at night when the occupants are sleeping.
• The schedule timer for space heating and DHW are set in the same way. However for DHW only time can be used as
scheduling variable.
• A small rubbish bin character is also displayed choosing this icon will delete the last unsaved action.
• It is necessary to use the SAVE function F4 button to save settings. CONFIRM does not act as SAVE for this menu.
Holiday mode
►For further detail about operation, refer to Operation manual.
Initial Settings
From the Initial settings menu the installer can set the
following.
• Date/Time
*Be sure to set it to the local standard time.
• Language
• Summer time
• Temp. display
• Contact number
• Time display
• ºC/ºF
• Room sensor settings
Follow the procedure described in General Operatio
for the set up operation.
<Room sensor settings>
For room sensor settings it is important to choose the
correct room sensor depending on the heating mode
the system will operate in.
Time/Zone schedule setting screen
34
Preview screen
Menu subtitle Description
Room RC zone When 2-zone valve on/off control is active and wireless remote
select controllers are available, from Room RC zone select screen, select
zone No. to assign to each remote controller.
Sensor setting From sensor setting screen, select a room sensor to be used for
monitoring the room temperature from Zone1 and Zone2 separately.
Corresponding initial settings room
Control option
sensor
(page 21)
Zone 1 Zone 2
Room RC 1-8 (one
A each for Zone1 and *1
Zone2)
B TH1 *1
C *1 *1
When different room
sensors are used
Time/ Zone*2 *1
according to the time
schedule
*1. Not specifi ed (if a locally-supplied room thermostat is used)
Room RC 1-8 (one each for Zone1 and Zone2) (if a wireless
remote controller is used as a room thermostat)
*2. From sensor setting screen, select Time/Zone to make it
possible to use different room sensors according to the time
schedule set in the Select Time/ Zone menu. The room sensors
can be switched up to 4 times within 24 hours.
5
System Set Up
Service Menu
The service menu provides functions for use by installer or service engineer. It is NOT intended the home owner alters settings
within this menu. It is for this reason password protection is required to prevent unauthorised access to the service settings.
The factory default password is "0000".
Follow the procedure described in General Operation for
the set up operation.
The service menu is navigated using the F1 and F2 buttons
to scroll through the functions. The menu is split across
several screens and is comprised of the following functions;
1. Manual operation
2. Function settings
3. Thermistor adjustment
4. Auxiliary settings
5. Heat source setting
6. Pump speed
7. Operation settings
8. Energy monitor settings
9. Running information
10. Thermistor reading
11. Summary of settings
12. Error history
13. Password protection
14. Manual reset
15. SD card
Many functions can not be set whilst the indoor unit is running. The installer should turn off the unit before trying to set these
functions. If the installer attempts to change the settings whilst the unit is running the main controller will display a reminder
message prompting the installer to stop operation before continuing. By selecting "Yes" the unit will cease operation.
<Manual operation>
During the fi lling of the system the water circulation pump and 3-way valve can
be manually overridden using manual operation mode.
When manual operation is selected a small timer icon appears in the screen.
The function selected will only remain in manual operation for a maximum of
2 hours. This is to prevent accidental permanent override of the FTC.
►Example
Pressing F3 /D button will switch manual operation mode ON for the main 3-way
valve. When fi lling of the thermal store tank is complete the installer should
access this menu again and press F3 /D to deactivate manual operation of the
part. Alternatively after 2 hours manual operation mode will no longer be active
and FTC will resume control of the part.
<Auxiliary settings>
This function is used to set the parameters for any auxiliary parts
used in the system
Menu subtitle Function/ Description
Economy settings Water pump stops automatically a specifi ed period of
for pump time from when operation is fi nished.
Delay Time before pump switches off*1
Electric heater To select "WITH booster heater (ON)" or "WITHOUT
(Heating) booster heater (OFF)" in Heating mode.
Delay The minimum time required for the booster heater to
turn ON after Heating mode has started.
*1. Decreasing "time before pump switched off" may increase the duration of
stand-by in Heating mode.
<Heat source setting>
The default heat source setting is heat pump and booster heater present in the
system to be operational.
This is referred to as Standard operation on the menu.
In this Installation Manual, instructions will be given only for
the following functions;
1. Manual operation
2. Auxiliary settings
3. Heat source setting
4. Pump speed
5. Operation settings
6. Energy monitor settings
7. Password protection
8. Manual reset
9. SD card
Information on the other functions can be found by consulting
the Service Manual.
Being engaged Error
indication
Being considered
(before selection)
Manual operation menu screen
Auxiliary settings menu screen
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