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Mitsubishi Electric Hydrobox EHSC Series Installation Manual page 28

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5
System Set Up
<Continued from the previous page.>
<Main Controller Menu Tree>
Initial
Main screen
Main
menu
Menu
en
Domestic Hot Water (DHW)/Legionella Prevention
The domestic hot water and legionella prevention menus control the operation of DHW
tank heat ups.
<DHW mode settings>
1. Highlight the hot water icon and press CONFIRM.
2. Use button F1 to switch between Normal and ECO heating modes.
3. To edit the mode, press down the MENU button for 3 seconds, then select "hot water".
4. Press F2 key to display the HOTWATER (DHW) SETTING menu.
5. Use F2 and F3 keys to scroll through the menu selecting each component in turn by
pressing CONFIRM. See the table below for description of each setting.
6. Enter the desired number using the function keys and press CONFIRM.
Menu subtitle
Function
DHW max. temp.
Desired temperature of stored hot water
DHW max. temp. drop
Difference in temperature between DHW max. temp. and the temperature at which DHW mode restarts 5 - 30
DHW max. operation time Max. time allowed for stored water heating DHW mode
DHW mode restriction
The time period after DHW mode when space heating has priority over DHW mode temporarily pre-
venting further stored water heating
(Only when DHW max. operation time has passed.)
<Eco mode>
DHW mode can run in either 'Normal' or 'Eco' mode. Normal mode will heat the water in the DHW tank more quickly using the full power of the heat pump. Eco mode
takes a little longer to heat the water in the DHW tank but the energy used is reduced. 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 ambient temperature.
<DHW recharge>
Select the amount of DHW tank. If you need much hot water, select LARGE.
Return to the DHW/legionella prevention menu.
27
Energy monitor
settings
Service
Password
protected
External input settings
Thermo ON output
Commissioning wizard
Running information
Thermistor reading
Summary of settings
Error history
Password protection
Manual reset
SD card
Booster heater 1 capacity
Electric heater
Booster heater 2 capacity
capacity
Immersion heater
Analog output
Pump 1
Water pump input
Pump 2
Pump 3
Delivered energy adjustment
Pump 4
Electric energy meter
Heat meter
Demand control (IN4)
OFF (Heat source)/Boiler
Outdoor thermostat (IN5)
Heater/Boiler
Zone1/Zone2/Zone1&2
Main controller
FTC
SD
Main RC
F1
F2
F3
Main RC
SD
Unrestricted access
Installer only
Shaded items relate
to DHW functions.
These are only avail-
able if the system in-
cludes a DHW tank.
Long press
Yes/No
Yes/No
Select download data
Select upload data
Range
Unit
Default value
40 - 60
°C
50
°C
10
30 - 120
min
60
30 - 120
min
30

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