8 Configuration
Installer reference guide
52
ERGA04~08DAV3(A) + 08S18+23DA
Daikin Altherma – Low temperature split
4P495249-1 – 2017.12
#
Code
Description
[2.C.1]
[8‑05]
Modulation:
▪ 0 No: Disabled, the desired leaving
water temperature needs to be set on
the user interface.
▪ 1 Yes: Enabled, the leaving water
temperature is calculated according to
the difference between the desired
and the actual room temperature. This
creates a better match between the
capacity of the heat pump and the
actual required capacity, and results in
less start/stop cycles and a more
economic operation.
Note:
The desired leaving water
temperature can only be read out on
the user interface.
[2.C.2]
[8‑06]
Max modulation:
▪ 0°C~10°C
This is the temperature value by which
the desired leaving water temperature is
increased or decreased.
INFORMATION
When leaving water temperature modulation is enabled,
the weather‑dependent curve needs to be set to a higher
position than [8-06] plus the minimum leaving water
temperature setpoint required to reach a stable condition
on the comfort setpoint for the room. To increase
efficiency, modulation can lower the leaving water setpoint.
By setting the weather‑dependent curve to a higher
position, it cannot drop below the minimum setpoint. Refer
to the illustration below.
a
+[8-06]
−[8-06]
b
Ta
Tt
a
Weather-dependent curve
b
Minimum leaving water temperature setpoint required to
reach a stable condition on the comfort setpoint for the
room.
Shut off valve
The following is only applicable in case of 2 leaving water
temperature zones. In case of 1 leaving water temperature zone,
connect the shut-off valve to the heating/cooling output.
The shut off valve for the main leaving water temperature zone can
close under these circumstances:
INFORMATION
During defrost operation, the shut-off valve is ALWAYS
opened.
During thermo: If [F‑0B] is enabled, the shut off valve closes when
there is no heating demand from the main zone. Enable this setting
to:
▪ avoid leaving water supply to the heat emitters in the main LWT
zone (through the mixing valve station) when there is request from
the additional LWT zone.
▪ activate the ON/OFF pump of the mixing valve station ONLY when
there is demand.
#
Code
Description
[2.D.1]
[F-0B]
The shut off valve:
▪ 0 No: is NOT influenced by heating
demand.
▪ 1 Yes: closes when there is NO
heating demand.
INFORMATION
The setting [F‑0B] is only valid when there is a thermostat
or external room thermostat request setting (NOT in case
of leaving water temperature setting).
8.4.4
Additional zone
Setpoint screen
You can set the leaving water temperature for the additional zone
using the setpoint screen. For more information about how to do this,
see
"8.3.5 Setpoint screen" on page 45
Schedule
Indicates if the desired leaving water temperature is according to a
schedule. Also see
.
#
Code
Description
[3.1]
N/A
Schedule
▪ 0: No
▪ 1: Yes
Heating schedule
You can set the additional zone heating temperature schedule using
the schedule screen. For more information about this screen, see
"8.3.8 Schedule screen: Example" on page 46
.
Setpoint mode
The setpoint mode of the additional zone can be independently set
from the setpoint mode of the main zone, see
.
#
Code
Description
[3.4]
N/A
Setpoint mode
▪ 0: Fixed
▪ 1: WD heating, fixed cooling
▪ 2: Weather dependent
Heating WD curve
Set weather-dependent heating for the additional zone (if [3.4] = 1 or
2):
