Daikin Altherma 3 R W EHB Series, Installation Manual

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5 Configuration
Installation manual
18
EHBH/X04+08DA
Daikin Altherma 3 R W
4P495266-1D – 2019.10
Control
The control type is displayed here, but cannot be adjusted. It is
determined by the control type of the main zone. For more info about
the functionality, see
"5.2.5 Configuration wizard: Main zone" [ 4 17].
# Code Description
[3.9] N/A ▪ 0:
Leaving water
if the control type
of the main zone is Leaving water .
▪ 1: External room thermostat if the
control type of the main zone is
External room thermostat or Room
thermostat .
Setpoint mode
For more info about this functionality, see "5.2.5 Configuration
wizard: Main zone" [
4
17].
# Code Description
[3.4] N/A ▪ 0: Fixed
▪ 1: WD heating, fixed cooling
▪ 2: Weather dependent
If you choose WD heating, fixed cooling or Weather
dependent , the next screen will be the detailed screen with weather-
dependent curves. Also see "5.2.7 Detailed screen with weather-
dependent curve" [
4
18].
Schedule
Indicates if the desired leaving water temperature is according to a
schedule. Also see
"5.2.5 Configuration wizard: Main zone" [
4
17].
# Code Description
[3.1] N/A ▪ 0: No
▪ 1: Yes
5.2.7 Detailed screen with weather-dependent
curve
When weather-dependent (WD) operation is active the desired
leaving water or tank temperature is determined automatically
depending on the averaged outdoor temperature. When the outdoor
temperature is lower the leaving water or tank temperature will need
to be higher as the water pipes will be colder and vice versa.
2-points WD curve
The weather-dependent curve is defined by two setpoints:
▪ Setpoint (X1, Y2)
▪ Setpoint (X2, Y1)
Weather-dependent curve:
Y1
Y2
X1 X2
a
Possible actions on this screen
Go through the temperatures.
Change the temperature.
Go to the next temperature.
Confirm changes and proceed.
Item Description
a Selected weather dependent zone:
▪ : Main zone or additional zone heating
▪ : Main zone or additional zone cooling
▪ : Domestic hot water
X1, X2 Examples of outdoor ambient temperature
Y1, Y2 Examples of desired tank temperature or leaving water
temperature. The icon corresponds to the heat emitter
for that zone:
▪ : Underfloor heating
▪ : Fan coil unit
▪ : Radiator
▪ : Domestic hot water tank
5.2.8 Configuration wizard: Tank
This part only applies to systems with an optional domestic hot water
tank installed.
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.
# Code Description
[5.6] [6-0D]
Heat up mode
▪ 0: Reheat only : Only reheat
operation is allowed.
▪ 1: Sc reheat : The domestic
hot water tank is heated according to a
schedule and between the scheduled
heat up cycles, reheat operation is
allowed.
▪ 2:
Schedule only
: The domestic hot
water tank can ONLY be heated
according to a schedule.
See the operation manual for more details.
INFORMATION
Risk of space heating capacity shortage for domestic hot
water tank without internal booster heater: In case of
frequent domestic hot water operation, frequent and long
space heating/cooling interruption will happen when
selecting the following:
Tank > Heat up mode > Reheat only .
Comfort setpoint
Only applicable when domestic hot water preparation is Schedule
only or Sc 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.