6 Operation
2019/09 99E13331xx-mub-en - V02 25
- Function "thermal disinfection" not completed successfully (nIO)(activatable)
The alarm output remains switched on as long as the controller display shows the error
message. The alarm output can be selected as a "normally open contact" or a "break contact".
The function can be activated or deactivated
(default setting = OFF, because a relay must be selected).
Parameter: Break contact / normally open contact
6.4.5 Parallel relay
The function parallel relay makes it possible to switch an additional relay in case of an error.
The function can be selected for every (free) relay.
It is possible to select what kind of incident causes the relay to be switched.
Up for selection are: Primary pump, secondary pump, certain functions. The function can be
activated or deactivated (default setting = OFF, because a relay must be selected).
Example:
The parallel relay R2 is chosen for the primary pump:
Whenever the controller sends a signal to the primary pump, the relay R2 is switched.
This can be useful to switch hydraulic paths on or off using a zone valve, for example.
6.4.6 Hygienic flush
This function makes it possible to flush the station every 24 hours for a certain period.
The function can be activated or deactivated (default setting = OFF).
Daily timer: Starting time can be selected
Default setting = 10:00 o'clock
Flush duration, min = 0 s
Flush duration, max = 600 s
Default setting = 300 s
6.5 Checking the temperature of the buffer tank
The function "control buffer tank temperature" prevents any unwanted heat exchange from the
secondary side of the domestic hot water module to the primary side.
This can be the case for active thermal disinfection and circulation.
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