CIAT Ereba He Series, Instruction Manual

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EN-71
EREBA He
4 - OPERATION
4.2.16 - Drying mode
The Drying mode enables a gradual water temperature ramp-up in Heat mode for UFH drying.
This operating mode can only be selected from the service access level, it is automatically
stopped at the end of the configured period.
Example of application in drying mode:
● Drying Starting Setpoint [P595] is set to 20°C
● Drying Warm-up days [P596] is set to 3 days
● Drying Ramp-up days [P597] is set to 4 days
● Drying Hold-up days [P598] is set to 5 days
● and Heating Home Water Setpoint [P401] is set to 28°C
Figure 27: Activation and configuration for drying mode
Setting (°C)
Time
(days)
Warm-up Ramp-up Hold-up
Heating
Setting
Drying
Starting
Setting
28°C
20°C
1 2 3 4 5 6 7 8 9 10 11 12 13
The Drying Mode will be deactivated after 12 days and the unit will switch to Off Mode.
Steps Table Par. Designation Description Range Default Ex. Unit
Configure the number of
days in drying mode
DRYING
596 Drying Warm-up days Number of Warm-up days 0 to 99 3 3 day
597 Drying Ramp-up days Number of Ramp-up days 0 to 99 4 4 day
598 Drying Hold-up days Number of Hold-up days 0 to 99 4 5 day
Configure the water
temperature for drying
mode
DRYING 595 Drying Starting Setpoint Water setpoint to warm-up days 20,0 to 60,0 20 20 °C
WAT_STP 401 Heat Home Setpoint Water setpoint for ramp-up and hold up days 20,0 to 60,0 45 28 °C
Activate the drying mode MOD_REQ 44 System Mode Request
0 = Off
0 to 9 - 9 -
1 = Cool
2 = Heat
4 = DHW
5 = Booster Cooling
6 = Booster Heating
8 = Purge (water pump is constantly
running to purge the hydraulic circuit)
9 = Drying (slow water temp. ramp-up in
Heating mode for UFH drying)