8 Configuration
Installer reference guide
47
ERLQ004~008CA + 08S18CB
Daikin Altherma – Low temperature split
4P401676-1D – 2018.07
#
Code
Description
[A.3.1.2.1]
N/A
LWT setpoint mode:
▪ Fixed (default): The desired leaving
water temperature is:
▪ NOT weather-dependent (i.e. does
NOT depend on the outdoor
ambient temperature)
▪ fixed in time (i.e., NOT scheduled)
▪ Weather dep.: The desired leaving
water temperature is:
▪ weather-dependent (i.e. depends
on
the
outdoor
ambient
temperature)
▪ fixed in time (i.e., NOT scheduled)
▪ Fixed/scheduled: The desired leaving
water temperature is:
▪ NOT
weather-dependent
(i.e.,
does NOT depend on the outdoor
ambient temperature)
▪ according
a
schedule.
The
scheduled actions are On or OFF.
Remark:
This value can only be
set in leaving water temperature
control.
▪ WD/scheduled: The desired leaving
water temperature is:
▪ weather-dependent
(i.e.,
does
depend on the outdoor ambient
temperature)
▪ according
a
schedule.
The
scheduled actions are On or OFF.
Remark:
This value can only be
set in leaving water temperature
control.
#
Code
Description
[7.7.2.1]
[0-00]
[0-01]
[0-02]
[0-03]
Set weather-dependent heating:
[0-00]
[0-01]
Ta
Tt
[0-03]
[0-02]
▪ T
t
: Target leaving water temperature
(additional)
▪ T
a
: Outdoor temperature
continued >>
#
Code
Description
[7.7.2.1]
[0-00]
[0-01]
[0-02]
[0-03]
<< continuation
▪ [0-03]:
Low
outdoor
ambient
temperature. –40°C~+5°C (default: –
10°C)
▪ [0-02]:
High
outdoor
ambient
temperature. 10°C~25°C (default:
15°C)
▪ [0-01]:
Desired
leaving
water
temperature
when
the
outdoor
temperature equals or drops below
the
low
ambient
temperature.
[9‑05]°C~[9‑06]°C (default: 45°C).
Note:
This value should be higher
than [0-00] as for low outdoor
temperatures
warmer
water
is
required.
▪ [0-00]:
Desired
leaving
water
temperature
when
the
outdoor
temperature equals or rises above
the
high
ambient
temperature.
[9‑05]°C~min(45, [9‑06])°C (default:
35°C).
Note:
This value should be lower
than [0-01] as for high outdoor
temperatures less warm water is
required.
Leaving water temperature: Delta T source
When both temperature zones have heating demand, both pumps
will operate at full speed. When only 1 temperature zone has heating
demand, only 1 pump will operate and the flow will be controlled to
realize a temperature difference between the entering and the
leaving water of [9‑09] on that zone. Only 1 temperature difference
[9‑09] can be selected, this is then applicable for both temperature
zones.
#
Code
Description
[A.3.1.3.1]
[9-09]
Heating: Required temperature
difference between entering and
leaving water. Range: 3°C~10°C (in
steps of 1°C; default value: 5°C).
Leaving water temperature: Modulation
Only applicable in case of room thermostat control. When using the
room thermostat functionality, the customer needs to set the desired
room temperature. The unit will supply hot water to the heat emitters
and the room will be heated. Additionally, also the desired leaving
water temperature must be configured: when turning on the
modulation, the desired leaving water temperature will be calculated
automatically by the unit (based on the preset temperatures, if
weather-dependent is selected, modulation will be done based on
the desired weather-dependent temperatures); when turning off the
modulation, you can set the desired leaving water temperature on
the user interface. Moreover, with the modulation turned on, the
desired leaving water temperature is lowered or raised in function of
the desired room temperature and the difference between the actual
and the desired room temperature. This results in:
▪ stable room temperatures exactly matching the desired
temperature (higher comfort level)
▪ less On/OFF cycles (lower noise level, higher comfort and higher
efficiency)
▪ water temperatures as low as possible to match the desired
temperature (higher efficiency)
