Tank - Daikin Altherma 3 R F Installer's Reference Manual

10 | Configuration

10.6.6 Tank

Installer reference guide
194
In heating operation, the desired leaving water temperature is locally increased
around an outdoor temperature of 0°C.This compensation can be selected when
using an absolute or a weather dependent desired temperature (see illustration
below).
T T
t t
L
R
T
A
0°C
a
a Absolute desired LWT
b Weather dependent desired LWT
# Code
[4.A] [D-03]
Overshoot
Restriction: This function is only applicable in heating mode.
This function defines how much the water temperature may rise above the desired
leaving water temperature before the compressor stops. The compressor will start
up again when the leaving water temperature drops below the desired leaving
water temperature.
# Code
[4.B] [9-04]
Undershoot
Restriction: This function is only applicable in cooling mode during compressor
startup. It is NOT applicable for stable operation.
This function defines how much the water temperature may drop below the
desired leaving water temperature before the compressor stops. The compressor
will start up again when the leaving water temperature rises above the desired
leaving water temperature.
# Code
N/A [9-09]
Antifrost
Antifrost [1.4] or [4.C] prevents the room from getting too cold. For more
information about room frost protection, see "10.6.2 Room" [
Overview
The following items are listed in the submenu:
L
R
T
A
0°C
b
Increase around 0°C:
▪ 0: No
▪ 1: increase 2°C, span 4°C
▪ 2: increase 4°C, span 4°C
▪ 3: increase 2°C, span 8°C
▪ 4: increase 4°C, span 8°C
Overshoot:
▪ 1°C~4°C
Undershoot:
▪ 1°C~18°C
Description
Description
Description
4
166].
ERGA04~08EA + EHVH04+08SU18+23EA
Daikin Altherma 3 R F
4P629090-1A – 2021.11