Main Controller - Mitsubishi Electric ecodan EHPT20Q-VM2EA Installation Manual

5
System Set Up

5.7 Main Controller

A
F1 F2 F3 F4
E
B C D
11 14 13 10
1 2
9
3
8
7
5 4
6
Main screen
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<Main controller parts>
Letter Name Function
A Screen Screen in which all information is displayed
B Menu Access to system settings for initial set up and
modifi cations.
C Back Return to previous menu.
D Confi rm Used to select or save. (Enter key)
E Power/Holiday If system is switched off pressing once will turn
system on. Pressing again when system is
switched on will enable Holiday Mode. Holding the
button down for 3 secs will turn the system off. (*1)
F1-4 Function keys Used to scroll through menu and adjust settings.
Function is determined by the menu screen visible
on screen A.
*1
When the system is switched off or the power supply is
disconnected, the cylinder unit protection functions (e.g.
freeze stat function) will NOT operate. Please beware that
without these safety functions enabled the cylinder unit and
installation may potentially become exposed to damage.
<Main screen icons>
Icon Description
1 Heat pump 'Heat pump' is running.
Defrosting.
Emergency heating.
2 Electric heater When this icon is displayed the 'Electric heaters'
(booster heater) are in use.
12
3 Target Target fl ow temperature
temperature
Target room temperature
Compensation curve
4 OPTION Pressing the function button below this icon will
display the option screen.
5 + Increase desired temperature.
6 - Decrease desired temperature.
7 Z1 Z2 Pressing the function button below this icon
switches between Zone1 and Zone2.
Information Pressing the function button below this icon
displays the information screen.
8 Space heating Heating mode
mode Zone1 or Zone2
9 DHW mode Domestic hot water heating mode
10 Holiday mode When this icon is displayed 'Holiday mode'
activated.
11 Timer is activated.
Prohibited
Server control is activated.
Stand-by
Stopped
Operating
12 Current Current room temperature
temperature
Current water temperature of thermal
store tank
13 The Menu button is locked or the switching of
the operation modes between DHW and Heating
operations are disabled in the Option screen. (*2)
14 SD memory card is inserted. Normal operation.
SD memory card is inserted. Abnormal operation.
*2 To lock or unlock the Menu, press the BACK and CONFIRM keys
simultaneously for 3 seconds.
5
System Set Up
Setting the Main Controller
After the power has been connected to the outdoor and cylinder units (See chapter 4.5) the initial system settings can
be entered via the main controller.
1. Check all breakers and other safety devices are correctly installed and turn on power to the system.
2. When the main controller is switched on for the fi rst time, the screen automatically goes to Initial settings menu,
Language setting screen and Date/Time setting screen.
3. Main controller will automatically start up. Wait approximately one minute whilst the control menus load.
4. When the controller is ready a blank screen with a line running across the top will be displayed.
5. Press button E (Power) (refer to page 23) to turn on the system. Before turning on the system, perform initial
settings as instructed below.
Main Settings Menu
The main settings menu can be accessed by pressing the MENU button. To reduce the risk of untrained end users
altering the settings accidentally there are two access levels to the main settings; and the service section menu is
password protected.
User Level – Short press
If the MENU button is pressed once for a short time the
main settings will be displayed but without the edit function.
This will enable the user to view current settings but NOT
change the parameters.
Installer Level – Long press
If the MENU button is pressed down for 3 secs the main
settings will be displayed with all functionality available.
The following items can be viewed and/or edited (dependent
on access level).
• Domestic Hot water (DHW)
• Heating
• Schedule timer
• Holiday mode
• Initial settings
• Service (Password protected)
General Operation
● To fi nd the icon that you wish to set, use the F2 and F3 buttons to move between the icons.
● The highlighted icon will appear as a larger version of the center of the screen.
● Press CONFIRM to select and edit the highlighted mode.
● Follow the <Main Controller Menu Tree> for further setting, using
selecting.
Main menu
Long Press
buttons for scrolling or F1 to F4 for
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