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Holiday Mode; Schedule Timer - Mitsubishi Electric ecodan EHST20C- TM9HB Operation Manual

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4
Customising Settings for your Home

Holiday Mode

Holiday mode can be used to keep the system running at lower flow temperatures
and thus reduced power usage whilst the property is unoccupied. Holiday mode
can run either flow temp, room temp, heating, compensation curve heating and
DHW all at reduced flow temperatures to save energy if the occupier is absent.
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 press 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 F 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 holiday mode for space heating.
<editing holiday mode>
Should you require the Holiday mode settings e.g. the flow temp, room temp to
be altered you should contact your installer.

Schedule timer

In Schedule mode daily and weekly space heating/cooling patterns and DHW pat-
terns can be entered. When setting up the system your installer should discuss
with you about your heating/cooling and DHW requirements so that the optimum
schedule can be created.
the schedule timer is activated or deactivated in the option screen. (See
option section)
. From the main settings menu use F2 and F3 to highlight the schedule icon
then press CONFIRM.
2. The schedule timer sub menu will be displayed. The icons show the following
modes;
• Heating
• Cooling
• DHW
3. Use F2 and F3 buttons 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. In 2-zone heating
operation, press F to switch between Zone 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/cooling and 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 .
. 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 F to F4 buttons to select start and end months that apply to Period 2.
Press CONFIRM to be shown the preview screen for each mode.
5.
3
Mode select screen
Mode select screen when PUHZ-FRP connected
Period setting screen when PUHZ-FRP connected

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