Daikin ERLA03DAV3, Installer'S Reference Manual, Page: 110 / 192

9 | Configuration
Installer reference guide
110
ERLA EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1A – 2020.05
# Code Description
[A.3.1.1.5] [8-05] Modulated LWT :
▪ 0 (
No
): Disabled
▪ 1 ( Yes ): Enabled
N/A [8-06] Maximum modulation:
Range: 0°C~10°C
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. See 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.
T
t
Target leaving water temperature
T
a
Outdoor temperature
Leaving water temperature: Emitter type
Heating up the main zone can take longer. This depends on:
▪ The water volume of the system
▪ The heater emitter type of the main zone
The setting Emitter type can compensate for a slow or a quick heating system
during the heat up cycle. In room thermostat control, the emitter type influences
the maximum modulation of the desired leaving water temperature, and the
possibility for usage of the automatic heating changeover based on the indoor
ambient temperature.
It is important to set the emitter type correctly and in accordance with your system
layout. The target delta T for the main zone depends on it.
# Code Description
[A.3.1.1.7] [2-0C] Emitter type
▪ 0:
Underfloor heat
▪ 1: Fancoil unit
▪ 2: Radiator