8 Configuration
Installer reference guide
63
ERGA04~08DAV3(A) + EHVH/X04+08S18+23DA
Daikin Altherma – Low temperature split
4P495248-1 – 2017.12
T
t
T
A
R
L
0°C
T
t
T
A
R
L
0°C
a
b
a
Absolute desired LWT
b
Weather dependent desired LWT
#
Code
Description
[4.A]
[D-03]
Increase around 0°C
▪ 0: No
▪ 1: increase 2°C, span 4°C
▪ 2: increase 4°C, span 4°C
▪ 3: increase 2°C, span 8°C
▪ 4: increase 4°C, span 8°C
Overshoot
This function defines how much the water temperature may rise
above the desired leaving water temperature before the compressor
stops. The compressor will start up again when the leaving water
temperature drops below the desired leaving water temperature.
This function is ONLY applicable in heating mode.
#
Code
Description
[4.B]
[9-04]
Overshoot
▪ 1°C~4°C
Antifrost
Room frost protection [1.4] prevents the room from getting too cold.
For
more
information
about
room
frost
protection,
see
"8.4.2 Room" on page 52
.
8.4.6
Tank
Tank setpoint screen
You can set the domestic hot water temperature using the setpoint
screen. For more information about how to do this, see
"8.3.5 Setpoint screen" on page 50
.
Powerful operation
You can use powerful operation to immediately start heating up the
water to the preset value (Storage comfort). However, this consumes
extra energy. If powerful operation is active,
will be shown on
the home screen.
To activate powerful operation
Activate or deactivate Powerful operation as follows:
1
Go to [5.1]: Tank > Powerful operation
2
Turn powerful operation Off or On.
Usage example: You immediately need more hot water
If you are in the following situation:
▪ You already consumed most of your hot water.
▪ You cannot wait for the next scheduled action to heat up the DHW
tank.
Then you can activate DHW powerful operation.
Advantage:
The DHW tank immediately starts heating up the water
to the preset value (Storage comfort).
INFORMATION
When powerful operation is active, the risk of space
heating/cooling and capacity shortage comfort problems is
significant. In case of frequent domestic hot water
operation, frequent and long space heating/cooling
interruptions will happen.
Comfort setpoint
Only applicable when domestic hot water preparation is Schedule
only or Schedule + reheat. When programming the schedule, you
can make use of the comfort setpoint as a preset value. When you
later want to change the storage setpoint, you only have to do it in
one place.
The tank will heat up until the
storage comfort temperature
has
been reached. It is the higher desired temperature when a storage
comfort action is scheduled.
Additionally, a storage stop can be programmed. This feature puts a
stop to tank heating even if the setpoint has NOT been reached.
Only program a storage stop when tank heating is absolutely
undesirable.
#
Code
Description
[5.2]
[6-0A]
Comfort setpoint
▪ 30°C~[6‑0E]°C
Eco setpoint
The
storage economic temperature
denotes the lower desired
tank temperature. It is the desired temperature when a storage
economic action is scheduled (preferably during day).
#
Code
Description
[5.3]
[6-0B]
Eco setpoint
▪ 30°C~min(50,[6‑0E])°C
Reheat setpoint
Desired reheat tank temperature
, used:
▪ in Schedule + reheat mode, during reheat mode: the guaranteed
minimum tank temperature is set by the Reheat setpoint minus the
reheat hysteresis. If the tank temperature drops below this value,
the tank is heated up.
▪ during storage comfort, to prioritize the domestic hot water
preparation. When the tank temperature rises above this value,
domestic hot water preparation and space heating/cooling are
executed sequentially.
#
Code
Description
[5.4]
[6-0C]
Reheat setpoint
▪ 30°C~min(50,[6‑0E]°C
Schedule
You can set the tank temperature schedule using the schedule
screen. For more information about this screen, see
"8.3.8 Schedule
screen: Example" on page 51
.
Heat up mode
The domestic hot water can be prepared in 3 different ways. They
differ from each other by the way the desired tank temperature is set
and how the unit acts upon it.
Final English - Tanslations in progress
