Daikin EHVZ16S18CB3V [16/28] Configuration
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Daikin EHVZ16S18CB3V [16/28] Configuration

Daikin EHVZ16S18CB3V [16/28] Configuration
5 Configuration
Installation manual
16
EHVZ04~16S18CB3V
Daikin Altherma – Low temperature split
4P401672-1E – 2018.02
5.2.5 Space heating control
Leaving water temperature: Main zone
# Code Description
[A.3.1.1.1] N/A Setpoint mode:
▪ 0 (Fixed): Absolute
▪ 1 (Weather dep.): Weather-
dependent
▪ 2 (Fixed/scheduled): Absolute +
scheduled (only for leaving water
temperature control)
▪ 3 (WD/scheduled): Weather-
dependent + scheduled (only for
leaving water temperature control)
[7.7.1.1] [1-00]
[1-01]
[1-02]
[1-03]
Weather-dependent curve:
[1-03]
[1-02]
T
a
T
t
[1-00] [1-01]
▪ T
t
: Target leaving water temperature
(main)
▪ T
a
: Outdoor temperature
Leaving water temperature: Additional zone
# Code Description
[A.3.1.2.1] N/A Setpoint mode:
▪ 0 (Fixed): Absolute
▪ 1 (Weather dep.): Weather-
dependent
▪ 2 (Fixed/scheduled): Absolute +
scheduled (only for leaving water
temperature control)
▪ 3 (WD/scheduled): Weather-
dependent + scheduled (only for
leaving water temperature control)
[7.7.2.1] [0-00]
[0-01]
[0-02]
[0-03]
Weather-dependent curve:
[0-00]
[0-01]
T
a
T
t
[0-03] [0-02]
▪ T
t
: Target leaving water temperature
(additional)
▪ T
a
: Outdoor temperature
Leaving water temperature: Delta T source
# Code Description
[A.3.1.3.1] [9-09] Required temperature difference
between entering and leaving water.
This applies to both temperature zones.
In case a minimum temperature
difference is required for the good
operation of the heat emitters in heating
mode.
Leaving water temperature: Modulation
# Code Description
[A.3.1.1.5] [8-05] Leaving water temperature modulation:
▪ 0 (No): Disabled
▪ 1 (Yes): Enabled. The leaving water
temperature is calculated according
to the difference between desired
and actual room temperature.
This allows better matching of the
heat pump capacity to actual
required capacity and results in less
start/stop cycles of the heat pump
and more economic operation.
N/A [8-06] Leaving water temperature maximum
modulation:
0°C~10°C (default: 3°C)
Requires modulation to be enabled.
This is the value by which the desired
leaving water temperature is increased
or lowered.
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
T
a
T
t
a Weather-dependent curve
b Minimum leaving water temperature setpoint required to
reach a stable condition on the comfort setpoint for the
room.

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