Daikin Altherma 3 WS EWSAH06UD 9W Series Installer's Reference Manual page 165

EWSAH/X06UD
Daikin Altherma 3 WS
4P675765-1 – 2022.04
NOTICE
▪
When adjusting the leaving water temperature ranges, all desired leaving water
temperatures are also adjusted to guarantee they are between the limits.
▪
Always balance between the desired leaving water temperature with the desired
room temperature and/or the capacity (according to the design and selection of
the heat emitters). The desired leaving water temperature is the result of several
settings (preset values, shift values, weather-dependent curves, modulation). As a
result, too high or too low leaving water temperatures could occur which lead to
overtemperatures or capacity shortage. By limiting the leaving water
temperature range to adequate values (depending on the heat emitter), such
situations can be avoided.
Example: In heating mode, leaving water temperatures must be sufficiently higher
than the room temperatures. To avoid that the room cannot heat up as desired,
set the minimum leaving water temperature to 28°C.
# Code
Leaving water temperature range for the main leaving water temperature zone (=
the leaving water temperature zone with the lowest leaving water temperature in
heating operation and the highest leaving water temperature in cooling
operation)
[2.8.1] [9-01]
[2.8.2] [9-00]
[2.8.3] [9-03]
[2.8.4] [9-02]
Control
Define how the operation of the unit is controlled.
Control
Leaving water
External room
thermostat
Room thermostat
Heating minimum:
▪ 15°C~37°C
Heating maximum:
▪ [2‑0C]=0 (emitter type main zone = underfloor
heating)
37°C~55°C
▪ Else: 37°C~65°C
Cooling minimum:
▪ 5°C~18°C
Cooling maximum:
▪ 18°C~22°C
In this control...
Unit operation is decided based on the leaving water
temperature regardless the actual room temperature
and/or heating or cooling demand of the room.
Unit operation is decided by the external thermostat or
equivalent (e.g. heat pump convector).
Unit operation is decided based on the ambient
temperature of the dedicated Human Comfort Interface
(BRC1HHDA used as room thermostat).
11 Configuration
|
Description
Installer reference guide
165