PAW FC3.10 - Hygienic Flush;Protection against Blocking; Buffer Storage

16 Description of function
2021/03 99E13331xx-mub-en - V07 41
Disinfection Connects in parallel to the
disinfection
On, Off Off
Disinfection error Connects in parallel if
disinfection was not
successful
On, Off Off
16.8 Hygienic flush/protection against blocking
The function Hygienic flush/protection against blocking serves to avoid that the circulation pump
seizes up after a longer downtime. During cascade operation, it also serves to flush the cascade
modules in operation which are switched on alternately. The module is flushed every 24 hours
at a defined time for a defined duration.
Parameters
Meaning
Adjustment
range
Factory setting
Hygienic flush/protection against
blocking
Activates the
function
On, Off Off
Start hour Start time of the
hygienic flush
0 ... 11:00 p.m. 10:00 a.m.
Flush duration Duration of
hygienic flush
00:00 ... 10:00
min
05:00 min
16.9 Buffer storage*
The function buffer storage (buffer tank) prevents an unintended heat transfer from the
secondary side of the domestic hot water module to the primary side. In this case, the
circulation pump is switched off in the circulation mode. This does not influence the operation
during the
Disinfection .
If the storage tank temperature is equal or less than the cold water temperature, the activation
of the circulation pump is blocked. The blocking is revoked as soon as the storage tank
temperature is 5 K higher than the cold water temperature.
If the function is activated, the additional temperature is displayed in the buffer tank.
*Settings only visible with installer code (see chapter "User code").
Parameters
Meaning
Adjustment range
Factory setting
Buffer storage Activates the function On, Off Off
Buffer storage sensor Selects the sensor Sensor 2 (only for
FriwaMini), Sensor 3
-