Slope-Offset Curve - Daikin EPRA18DAW1 Installer's Reference Manual

9.4.3 Slope-offset curve

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W
Daikin Altherma 3 H HT F
4P587503-1A – 2020.01
Item
a Selected weather dependent zone:
▪ : Main zone or additional zone heating
▪ : Main zone or additional zone cooling
▪ : Domestic hot water
X1, X2 Examples of outdoor ambient temperature
Y1, Y2 Examples of desired tank temperature or leaving water temperature.
The icon corresponds to the heat emitter for that zone:
▪ : Underfloor heating
▪ : Fan coil unit
▪ : Radiator
▪ : Domestic hot water tank
Go through the temperatures.
Change the temperature.
Go to the next temperature.
Confirm changes and proceed.
Slope and offset
Define the weather-dependent curve by its slope and offset:
▪ Change the slope to differently increase or decrease the temperature of the
leaving water for different ambient temperatures. For example, if leaving water
temperature is in general fine but at low ambient temperatures too cold, raise
the slope so that leaving water temperature is heated increasingly more at
decreasingly lower ambient temperatures.
▪ Change the offset to equally increase or decrease the temperature of the leaving
water for different ambient temperatures. For example, if leaving water
temperature is always a bit too cold at different ambient temperatures, shift the
offset up to equally increase the leaving water temperature for all ambient
temperatures.
Examples
Weather-dependent curve when slope is selected:
a
Y4
Y3
Y2
Y1
X1
Weather-dependent curve when offset is selected:
Description
Possible actions on this screen
b
X2
9 Configuration
|
c
e
d
Installer reference guide
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