Daikin Altherma EAVX-D9WG Installer's Reference Manual page 54

8 Configuration
# Code
N/A [4-0D] Offset: Ensures that the active desired
room temperature is always reached. In
heating mode, the space operation
ONLY changes when the room
temperature rises above the desired
heating temperature added by the offset
value.
▪ Range: 1°C~10°C
Number of zones
The system can supply leaving water to up to 2 water temperature
zones. During configuration, the number of water zones must be set.
# Code
[4.4] [7‑02] ▪ 0: Single zone
Only one leaving water temperature
zone:
▪ a: Main LWT zone
[4.4] [7‑02] ▪ 1: Dual zone
Two leaving water temperature zones.
The main leaving water temperature
zone consists of the higher load heat
emitters and a mixing station to
achieve the desired leaving water
temperature. In heating:
▪ a: Additional LWT zone: Highest
▪ b:
CAUTION
If there are 2 zones, it is important that the zone with the
lowest water temperature is configured as the main zone,
and the zone with the highest water temperature is
configured as the additional zone. Not configuring the
system in this way could cause damage to the heat
emitters.
Installer reference guide
54
Description
Description
a
a
b
temperature
Main LWT zone: Lowest
temperature
CAUTION
If there are 2 zones and the emitter types are wrongly
configured, water of high temperature can be sent towards
a low temperature emitter (underfloor heating). To avoid
this:
▪ Install an aquastat/thermostatic valve to avoid too high
temperatures towards a low temperature emitter.
▪ Make sure you set the emitter types for the main zone
[2.7] and for the additional zone [3.7] correctly in
accordance with the connected emitter.
Pump operation mode
When the space heating/cooling operation is OFF, the pump is
always OFF. When space heating/cooling operation is ON, you have
the choice between these operation modes:
# Code
[4.5] [F–0D] Pump operation mode:
▪ 0
operation, regardless of thermo ON or
OFF condition. Remark: Continuous
pump operation requires more energy
than
operation.
b
b
▪ a: Space heating/cooling control
▪ b: Off
▪ c: On
▪ d: Pump operation
[4.5] [F-0D] ▪ 1 Sample: The pump is ON when
there is heating or cooling demand as
the leaving water temperature has not
yet reached the desired temperature
yet. When thermo OFF condition
occurs, the pump runs every 3 minutes
to check the water temperature and
demand
necessary. Remark: Sample is ONLY
available in leaving water temperature
control.
a
b
d
g
b
▪ a: Space heating/cooling control
▪ b: Off
▪ c: On
▪ d: LWT temperature
▪ e: Actual
▪ f: Desired
▪ g: Pump operation
EPGA11~16DAV3 + EAVH/X16S18+23DA6V+9W
Description
Continuous: Continuous pump
sample or request pump
a
c
c
d
heating or cooling
c
e
f
c
Daikin Altherma – Low temperature split
4P556070-1 – 2019.02
if