Space Heating - Daikin ERGA08DAV3 Installer's Reference Manual

8 Configuration
# Code
[3.8.1] [9-05] Heating minimum: 15°C~37°C
[3.8.2] [9-06] Heating maximum
▪ [2‑0D]=2 (emitter type additional zone
= radiator)
37°C~65°C
▪ Else: 37°C~55°C
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 "8.4.3 Main zone" on
# Code
[3.9] N/A Control
▪ Leaving water if the control type of
the main zone is Leaving water.
▪ External
control type of the main zone is
External room thermostat or Room
thermostat.
Thermostat type
Only applicable in external room thermostat control. For more info
about the functionality, see "8.4.3 Main zone" on
# Code
[3.A] [C‑06] External room thermostat type for the
additional zone:
▪ 1: 1 contact. Connected to only 1
digital input (X2M/35a)
▪ 2: 2 contacts. Connected to 2 digital
inputs (X2M/34a and X2M/35a)
Leaving water temperature: Delta T
For more information, see "8.4.3 Main zone" on
# Code
[3.B.1] [1-0C] Delta T heating: A minimum
temperature difference is required for the
good operation of heat emitters in
heating mode.
▪ If [2-0D] = 2, this is fixed to 10°C
▪ Else: 3°C~10°C
8.4.5

Space heating

About space operation modes
This unit is a heating only model. The system can heat up a space,
but NOT cool down a space.
Operation range
Depending on the average outdoor temperature, the operation of the
unit in space heating is prohibited.
# Code
Space heating off temperature:
[4.3.1] [4-02]
When the averaged outdoor temperature
rises above this value, space heating is
turned off.
▪ 14°C~35°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.
Installer reference guide
56
Description
page 51.
Description
room thermostat if the
page 51.
Description
page 51.
Description
Description
# 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:
▪ c: Mixing station
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.
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 operation is OFF, the pump is always OFF.
When space heating operation is ON, you have the choice between
these operation modes:
ERGA04~08DAV3(A) + EHVZ04+08S18+23DA +
Description
a
a
c
b
temperature
Main LWT zone: Lowest
temperature
EHVZ04+08S18+23DJ
Daikin Altherma 3 R F
4P495249-1B – 2019.06