Potterton Paramount four Installation Manual page 104

9 Settings
104 Paramount four 30 – 115 kW
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 par­
ameterized, the lower temperature is considered for the discharge
safety function (normally the DHW sensor B31).
Application with thermostat
The primary pump is only switched on if the boiler temperature is
above the set DHW temperature. If the boiler temperature drops be­
low the DHW nominal setpoint minus the DHW switching difference,
charging pump is switched off again.
Off: The function is switched off.
Always: The function is always active.
Automatically: The function is only active if the heat generator cannot
deliver heat or is not available (malfunction, generator lock).
Charging temp max (5050)
With this setting, the maximum charging temperature for the connected
storage of the solar system is limited. If the DHW-charging value is excee­
ded, the collector pump switches off.
Note
The collector pump can be re-activated by the collector overheat­
ing protecting function (see programme number 3850) until the
storage safety temperature has been reached.
For more information, see
Collector overtemp prot (3850), page 100
Recooling temp (5055)
Setting the temperature for recooling the DHW-storage.
Recooling collector (5057)
Recooling of the overhaeted collector through giving off of the energie to
the surrounding of the collector.
El imm heater optg mode (5060)
Substitute: The DHW is only heated by an immersion heater if the boiler
signals a malfunction or a boiler lock exists.
Summer: The DHW is heated by an immersion heater if all connecting
heating circuits have switched to summer mode. As soon at least one
heating circuit is switched to heating mode, the DHW preparation is tak­
en over by the boiler again. The conditions listed for the immersion heat­
er under the substitute operating mode are also activated in summer
mode.
Always: DHW is heated exclusively by the immersion heater.
El immersion heater release (5061)
24h/day: Immersion heater permanently released
Hot water release: Immersion heater released subject to DHW-release
(see prog. no. 1620).
Time hot water: Release of the immersion heater via the time switching
programme 4 of the local controller.
El immersion heater control (5062)
External thermostat: The storage tank temperature is achieved with an
external thermostat without the controller providing a set temperature.
Hot water sensor: The storage tank temperature is achieved with an ex­
ternal thermostat with setpoint control of the controller.
Hot water boost (5070)
The DHW-push can activated manually or automatically. It causes a one-
time DHW charging to the nominal setpoint.
Off: The DHW-push can only activated manually.
On: If the DHW temperature drops by more than two switching differen­
ces (prog. no. 5024) below the reduced setpoint (prog. no. 1612), it will
be recharged once to the DHW nominal setpoint (prog.no.1610).
7658013 - 02 - 15092016