Holiday Mode; Schedule Timer - Mitsubishi Electric Ecodan EHST20 serie Para El Instalador

5
System Set Up

Holiday mode

Holiday mode can be activated in 2 ways. Both methods will result in the Holiday
Mode activation screen being shown.
Option 1.
From the main menu screen button E should be pressed. Be careful not to hold
down button E for too long as this will turn off the controller and system.
Option 2.
From the main menu screen press button F4. The current settings screen will be
displayed. Press button F4 again to access the holiday mode activation screen.
Once the holiday mode activation screen is displayed you can activate/deactivate
and select the duration that you would like holiday mode to run for.
• Press button F1 to activate or deactivate holiday mode.
• Use buttons F2, F3 and F4 to input the date which you would like holiday
mode to activate or deactivate for space heating.
<editing holiday mode>
To change the Holiday mode settings e.g. the flow temp, you must access the
holiday mode menu from the main settings menu.
1. From main menu screen press button B.
2. Use buttons F2 and F3 to scroll through menu until Holiday Mode is highlight-
ed.
3. Press CONFIRM button.
4. The holiday mode status screen is displayed.
5. To change the flow temperature or room temperatures on heating mode press
button F3.
6. A list of variables will be displayed. Choose the one you wish to modify using
buttons F1/F2 then press CONFIRM.
7. Adjust the temperature using buttons F3 and F2 and press CONFIRM button
to save changes.

Schedule timer

The schedule timer mode allows daily and weekly space heating and DHW pat-
terns to be entered.
1. From the main settings menu use F2 and F3 to highlight the schedule timer
icon then press CONFIRM.
2. The schedule timer sub menu will be displayed. The icons show the following
modes;
• Heating
• Hot Water (DHW)
3. Use F2 and F3 buttons to move between mode icons then press CONFIRM to
be shown the preview screen for each mode.
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 set-
tings 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 a PUHZ-FRP outdoor unit is connected, DHW schedule timer setting can
be set for two periods into which a year is divided. In this menu screen, the dura-
tion of Period 2 can be entered. The rest of the set duration comes set as Period 1.
1. From the main settings menu use F2 and F3 to highlight the schedule timer
icon then press CONFIRM.
2. The schedule timer sub menu will be displayed. The icons show the following
modes;
• Heating
• Hot Water (DHW)
• Hot Water (DHW) 2
3. Use F2 and F3 buttons to move between mode icons to select the Hot Water
(DHW) 2 icon.
4. Use F1 to F4 buttons to select start and end months that apply to Period 2.
5. Press CONFIRM to be shown the preview screen for each mode.
<Setting the schedule timer>
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Holiday Mode activation screen
Holiday Mode status screen
Mode select screen
Mode select screen when PUHZ-FRP connected
Period setting screen when PUHZ-FRP connected