Configuration Wizard: Tank; Weather-Dependent Curve; What Is A Weather-Dependent Curve - Daikin Altherma 3 H HT F Series Installation Manual

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 "6.2.5 Configuration wizard: Main
# Code
[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
zone" [ 4 20].
wizard: Main
# Code
[3.4] N/A ▪ 0: Fixed
▪ 1: WD heating, fixed cooling
▪ 2: Weather dependent
If you choose WD heating,
dependent, the next screen will be the detailed screen with weather-
dependent curves. Also see "6.3 Weather-dependent
Schedule
Indicates if the desired leaving water temperature is according to a
schedule. Also see "6.2.5 Configuration wizard: Main
# Code
[3.1] N/A ▪ 0: No
▪ 1: Yes
6.2.7

Configuration wizard: Tank

INFORMATION
To make tank defrost possible, we recommend a minimum
tank temperature of 30°C.
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
Heat up mode
[5.6] [6-0D]
▪ 0:
operation is allowed.
▪ 1: Schedule + 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.
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.
ETVH/X16S18+23DA6V+9W(G)
Daikin Altherma 3 H HT F
4P586454-1 – 2019.07
zone" [ 4 20].
Description
"6.2.5 Configuration
Description
fixed cooling or Weather
curve" [ 4 21].
zone" [ 4 20].
Description
Description
Reheat only:
Only reheat
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
Comfort setpoint
[5.2] [6-0A]
▪ 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
Eco setpoint
[5.3] [6-0B]
▪ 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
[5.4] [6-0C] Reheat setpoint
▪ 30°C~min(50,[6‑0E])°C
6.3

Weather-dependent curve

6.3.1

What is a weather-dependent curve?

Weather-dependent operation
The unit operates 'weather dependent' if the desired leaving water or
tank temperature is determined automatically by the outdoor
temperature. It therefore is connected to a temperature sensor on
the North wall of the building. If the outdoor temperature drops or
rises, the unit compensates instantly. Thus, the unit does not have to
wait for feedback by the thermostat to increase or decrease the
temperature of the leaving water or tank. Because it reacts more
quickly, it prevents high rises and drops of the indoor temperature
and water temperature at tap points.
Advantage
Weather-dependent operation reduces energy consumption.
Weather-dependent curve
To be able to compensate for differences in temperature, the unit
relies on its weather-dependent curve. This curve defines how much
the temperature of the tank or leaving water must be at different
outdoor temperatures. Because the slope of the curve depends on
local circumstances such as climate and the insulation of the house,
the curve can be adjusted by an installer or user.
Types of weather-dependent curve
There are two types of weather-dependent curves:
▪ 2-points curve
▪ Slope-offset curve
Which type of curve you use to make adjustments, depends on your
personal preference. See
curves" [ 4 23].
6 Configuration
Description
Description
Description
"6.3.4 Using weather-dependent
Installation manual
21