Flow setpoint boost (5020)
The boiler temperature setpoint for charging the DHW storage tank
consists of the DHW temperature setpoint and the flow setpoint boost.
Transfer boost (5021)
Through the transfer, energy can be moved from the buffer storage tank
into the DHW storage tank. For this the current buffer storage tank
temperature must be higher than the current temperature in the DHW
storage tank. This temperature difference is set here.
Type of charging (5022)
Charging a stratification cylinder (if available):
Recharging : The cylinder is only recharged at every DHW demand.
Full charging: The cylinder is fully charged at every DHW demand.
Full charging legio: The cylinder is fully charged if the legionella function
is enabled; otherwise it is only recharged.
Full charg 1st time day: During the first charging of the day, the cylinder
is fully charged, then recharged.
Full charg 1st time legio: The cylinder is fully charged during the first
charging of the day and if the legionella function is enabled; otherwise it
is recharged
Explanations:
Full charging: The stratification cylinder is fully charged. The heat
demand is triggered by the top cylinder sensor TWF (B3), and ended by
sensors TWF and TLF (B36) or TWF2 (B31). If only one B3 is installed,
recharging takes place automatically.
Recharging: The stratification cylinder is recharged i.e. only the area up
to the cylinder sensor TWF (B3) is heated. The heat demand is triggered
and ended by the top cylinder sensor TWF (B3).
Switching diff (5024)
If the DHW temperature is lower than the current setpoint minus the
switching difference set here, the DHW charging is started. The DHW
charging is ended if the temperature of the current setpoint is reached.
Important
At the first DHW release of the day, forced charging is performed.
The DHW charging is also started if the DHW temperature is
within the switching difference – as long as it is not less than 1 K
under the setpoint.
Charging time limitation (5030)
During the domestic water charging, the room heating – depending on the
selected charging priority (program no. 1630) and the hydraulic circuit –
has too little or no power. It is therefore often practical to restrict the time
of domestic water charging. After the set time has elapsed, domestic water
charging is stopped and locked for the same amount of time before it is
resumed.
Discharging protection (5040)
This function ensures that the DHW circulation pump (Q3) only switches
on when the temperature in the heat source is high enough.
Application with sensor
The charging pump is only switched on when the heat source
temperature is above the DHW temperature plus half of the heating
excess. If the boiler temperature drops below the DHW temperature
plus 1/8 of the charging excess during the charging again, the
charging pump is switched off again. If two DHW sensors for the DHW
charging are parameterized, the lower temperature is considered for
the discharge safety function (normally the DHW sensor B31).
Application with thermostat
9 Settings
7703046 - 01 - 23072018
Paramount five 30 – 115
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