Scheduled + Reheat Mode; To Change The Domestic Hot Water Temperature - Daikin ETBH16DF9W User Reference Manual

4.7.4 Scheduled + reheat mode

4.7.5 To change the domestic hot water temperature

ETVH/X16S18+23DA6V+9W(G) + ETBH/X16DF6V+9W
Daikin Altherma 3 H HT F+W
4P586456-1B – 2020.10
t Time
▪ Initially, the DHW tank temperature is the same as the temperature of the
domestic water entering the DHW tank (example: 15°C).
▪ At 00:00 the DHW tank is programmed to heat up the water to a preset value
(example: Comfort = 60°C).
▪ During the morning, you consume hot water and the DHW tank temperature
decreases.
▪ At 14:00 the DHW tank is programmed to heat up the water to a preset value
(example: Eco = 50°C). Hot water is available again.
▪ During the afternoon and evening, you consume hot water again and the
DHW tank temperature decreases again.
▪ At 00:00 the next day, the cycle repeats.
In scheduled + reheat mode, the domestic hot water control is the same as in
scheduled mode. However, when the DHW tank temperature drops below a preset
value (=reheat tank temperature – hysteresis value; example: 35°C), the DHW tank
heats up until it reaches the reheat set point (example: 45°C). This ensures that a
minimum amount of hot water is available at all times.
Example:
T t
60°C
50°C
45°C
35°C
15°C
00:00
T Domestic hot water tank temperature
t
t Time
In Reheat only mode, you can use the tank temperature setpoint screen to read
out and adjust the domestic hot water temperature.
1 Go to [5]: Tank.
5
Tank
1
2
3
07:00 14:00 21:00
4 Operation
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4
5
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User reference guide
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