Domestic Water Heating Operation ( ); Automatic Storage - Daikin Altherma EKHVMRD50ABV1 Operation Manual

4.6. Domestic water heating operation (
NOTE Any domestic water heating operation is impossible
when the domestic hot water tank is not installed.
For the domestic water heating mode, several operations are
possible:
I
storage operation (either automatic or manually set)
I
reheat operation
I
disinfection operation
The purpose of each operation, and how the configuration is done, is
explained below.
Domestic water heating modes
T
A B
D
E
F
G
A Storage operation (if activated)
B Reheat operation (if activated)
C Disinfection operation (if activated)
Field settings
D Disinfection operation temperature [5-00] (e.g. 70°C)
E Hot water storage temperature [b-03] (e.g. 60°C)
F Reheat maximum water temperature [b-01] (e.g. 45°C)
G Reheat minimum water temperature [b-00] (e.g. 35°C)
t Time
T Domestic hot water tank temperature

Automatic storage

In this mode, the indoor unit will deliver hot water to the domestic hot
water tank based on the daily fixed pattern. This mode will continue
until the storage temperature set point is reached. During operation
of this mode, the icon will be blinking with 1 second intervals.
Automatic storage is the recommended domestic hot water mode. In
this mode, water heats up during the night (when space heating
requirements are lower) until the storage temperature set point is
reached. The heated water is stored in the domestic hot water tank at
a higher temperature so it can fulfil the domestic hot water
requirements throughout the day.
NOTE Remark that the
effective automatic storage operation. Presence of the
permanently lit
storage is enabled, but only means that reheat is
enabled.
During operation it is always possible to cancel the
operation by pushing the
Be aware that after pushing the
that the permanently lit
The storage temperature set point and the timing are field settings.
Refer to "4.15. Field settings" on page 19
how to set one or more field settings.
I
[1-00] Status: defines whether the domestic water heating
(storage mode) during night is enabled (1) or not (0).
I
[1-01] Start time: time of the night at which the domestic water
should be heated.
I
[1-02] Status: defines whether the domestic water heating
(storage mode) during daytime is enabled (1) or not (0).
EKHVMRD50+80ABV1 + EKHVMYD50+80ABV1
Daikin Altherma indoor unit
4P404418-1 – 2015.04
)
C
t
icon will only be blinking during
icon does not mean that automatic
button once.
button, it is possible
icon still displays.
for a detailed description
I
[1-03] Start time: time of the day at which the domestic water
should be heated.
Be aware that despite the automatic storage is a
pre-programmed schedule timer, it is only active when the
schedule timer is enabled. This means that you have to
push the button and confirm that the
make sure that the automatic storage will operate.
I
[b-03] set point: storage temperature (see figure
water heating modes" on page
I
[b-02] Status: defines whether the weather dependent domestic
water heating is turned ON (1) or OFF (0).
If enabled, the storage set point will be set weather dependent.
In case of a higher ambient temperature (e.g. during summer-
time), temperature of supply water to the domestic hot water
tank will be higher too, so that storage temperature set point can
be set lower in order to keep the overall equivalent hot water
amount the same during the whole year. Therefore it is
recommended to use this function.
I
[b-04] Automatic maximum domestic hot water storage
temperature: default = 70°C.
T
[b-04]
55°C
15°C
A Ambient temperature
T Domestic hot water storage temperature
NOTE The ambient temperatures for weather dependent
domestic water heating (see figure) are fixed and can
not be changed.
NOTE If weather dependent domestic water heating is
enabled [b-02], the storage temperature will be set
automatically and the field setting [b-03] will be of no
importance.
I
NOTE Make sure the domestic hot water is only heated
up to the domestic hot water temperature you
require.
Start with a low domestic hot water storage
temperature set point, and only increase if you
feel that
temperature is not sufficient for your needs (this
depends on your water using pattern).
I
Make sure the domestic hot water is not heated
unnecessary. Start with activating automatic
storage during night (default setting). If it seems
that the domestic hot water night storage
operation is not sufficient for your needs, an
additional storage during daytime can be set.
I
For energy-saving purposes, it is advised to
enable the weather dependent domestic water
heating.
is displayed to
"Domestic
8) only valid if [b-02]=0.
A
25°C
the domestic hot water
Operation manual
supply
8