Daikin EWYQ005AAV3P [153/170] Setting 6 dt for sanitary water heating heat pump not applicable

Daikin EWAQ005AAV3P [153/170] Setting 6 dt for sanitary water heating heat pump not applicable
ESIE06-04 Field settings
Part 4 – Commissioning and Test Run 4–17
3
4
5
1
2.3.7 Setting [6] DT for Sanitary Water Heating (Heat Pump) (not applicable)
Outline Applies only to installations with a sanitary water tank.
The ‘DT (delta temperature) for sanitary water heating’ field settings determine the temperatures at
which heating of the sanitary water by the heat pump will be started (i.e., the heat pump ON
temperature) and stopped (i.e., the heat pump OFF temperature).
When the sanitary water temperature drops below the heat pump ON temperature (
T
HP ON
), heating of
the sanitary water by the heat pump will be started. As soon as the sanitary water temperature reaches
the heat pump OFF temperature (T
HP OFF
) or the user set point temperature (T
U
), heating of the sanitary
water by the heat pump will be stopped (by switching the 3-way valve).
The heat pump OFF temperature, and the heat pump ON temperature, and its relation with field
settings [6-00] and [6-01] are explained in the illustration below.
Overview
P [6-00] Start: temperature difference determining the heat pump ON temperature (T
HP ON
). See
illustration.
P [6-01] Stop: temperature difference determining the heat pump OFF temperature (T
HP OFF
). See
illustration.
Graph
T
U
User set point (as set on the user interface)
T
HP MAX
Maximum heat pump temperature at sensor in sanitary water tank (50°C)
T
HP OFF
Heat pump OFF temperature
T
HP ON
Heat pump ON temperature
T
U
> T
HP MAX
T( C)
70 T
U
50 T
HP MAX
48 T
HP OFF
41 T
HP ON
[6-01]
[6-00]
T
U
< T
HP MAX
T( C)
45 T
U
= T
HP OFF
50 T
HP MAX
38 T
HP ON
[6-00]
T
U
= 45 C
[6-01] = 2 C
[6-00] = 7 C
T
U
= 70 C
[6-01] = 2 C
[6-00] = 7 C

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