Daikin altherma EJHA04AAV3 - Advanced usage; Schedules: Example

3 Operation
Operation manual
6
EJHA04AAV3
Daikin Altherma hybrid monobloc – Heat pump module
4P531174-1B – 2018.10
INFORMATION
There is a risk of space heating capacity shortage/comfort
problem (in case of frequent domestic hot water operation,
frequent and long space heating interruption will happen)
when selecting [6‑0D]=0 ([A.4.1] Domestic hot water
Type=Reheat only).
Scheduled mode
In scheduled mode (
), the DHW tank produces hot water
corresponding to a schedule. The best time to allow the tank to
produce hot water is at night, because the space heating demand is
lower.
Example:
t
60°C
00:00 07:00
50°C
15°C
40°C
14:00 21:00
1
2
3
4
5
T
t
T
t
DHWtank temperature
t Time
Scheduled + reheat mode
In scheduled + reheat mode (
 ), the domestic hot water control is
the same as in scheduled mode. However, when the DHW tank
temperature drops below a preset value (=reheat tank temperature –
hysteresis value; example: 35°C), the DHW tank heats up until it
reaches the reheat set point (example: 45°C). This ensures that a
minimum amount of hot water is available at all times.
Example:
t
T
t
60°C
00:00 07:00
50°C
45°C
15°C
14:00 21:00
35°C
1
2
4
5
3
T
t
DHWtank temperature
t Time
60°C Storage comfort
50°C Storage eco
45°C Reheat
35°C Reheat tank temperature–hysteresis value
Using the DHWtank temperature home page
NOTICE
Disinfection mode. Even if you turn OFF domestic hot
water operation via the DHWtank temperature home page
(Tank), disinfection mode will remain active.
Typical DHWtank temperature home pages
Depending on the user profile, the user interface gives you either a
basic or a detailed home page. The examples in the illustrations
below are in DHWtank mode = Scheduled.
User profile = Basic User profile = Detailed
15:20
60°C
Storage comfort
Tank
Mon
15:20
60°C
00:00
Mon
Tue
Tank
Storage comfort
To read out and adjust the desired reheat temperature (in
scheduled and reheat mode)
1 Go to [7.4.3.3]:
> User settings > Preset values > Tank
temperature > Reheat.
Result: You can read out the desired reheat temperature.
2 Press
or to adjust.
To read out and overrule the active or next scheduled desired
temperature (in scheduled mode or scheduled + reheat mode)
1 Go to the DHWtank temperature home page (Tank).
Result:
60°C
is displayed.
2 Press
or to overrule. Note: If the desired temperature is
weather dependent, you cannot change it on the home page.
Using the DHWtank booster mode
To activate the DHWtank booster mode (user profile = Basic)
1 Go to the DHWtank temperature home page (Tank).
2 Press
for more than 5seconds.
To activate the DHWtank booster mode (user profile =
Detailed)
1 Go to the DHWtank temperature home page (Tank).
2 Press
to select .
3.5 Advanced usage
3.5.1 About changing the user permission level
The amount of information you can read out in the menu structure
depends on your user permission level:
▪ End user (= default)
▪ Adv. end user: You can read out more information.
To set the user permission level to Advanced end user
1 Go to the main menu or any of its submenus:
.
2 Press
for more than 4seconds.
Result: The user permission level switches to Adv. end user.
Additional information is displayed and "+" is added to the menu title.
The user permission level will stay in Adv. end user until set
otherwise.
To set the user permission level to End user
1 Press
for more than 4 seconds.
Result: The user permission level switches to End user. The user
interface will return to the default home screen.
3.6 Schedules: Example
INFORMATION
The procedures to program other schedules are similar.
In this example:
▪ Room temperature schedule in heating mode
▪ Monday = Tuesday = Wednesday = Thursday = Friday
▪ Saturday = Sunday