Parameters overview | 5
B0640421_en | Operating instructions Control Panel RBG 3200
21
5.3.2 Solar - Temperatures
Basic display
Solar
Temperatures
Boiler target temperature during solar charging
Up to this temperature the DHW tank is heated by the solar system. If the solar panel system
is equipped with an isolating valve for switching between DHW tank and buffer solar coil, then
this parameter is responsible for switching between both of these solar coils.
Temp differential to start collector pump
The collector pump activates when the collector temperature exceeds the reference
temperature in the DHW tank or buffer tank by this value.
Temp difference to stop collector pump
The collector pump switches off when the difference between the collector temperature and
reference temperature in the DHW tank or buffer tank is lower than this value.
Maximum buffer tank bottom temperature during solar charging
Prerequisite:
Hydraulic system 12 or 13
If the sensor for the solar reference temperature in the buffer tank exceeds the specified value,
the collector pump is switched off.
Collector/pump protection from a collector temp.
If the measured value of the solar collector sensor exceeds the set value, the solar collector
must cool down by 20°C within 15 minutes, otherwise the solar collector pump stops in order
to protect the pump.
5.4 Buffer tank
5.4.1 Buffer tank - Status
Basic display
Buffer tank
Buffer tank 01
State
Buffer tank top temperature
Display of the current temperature in the top part of the buffer tank.
Buffer tank temperature, sensor 2
Prerequisite:
Master boiler in the cascade or hydraulic system 4 or fuel amount calculation
Display of the current temperature in the top part of the buffer tank.
Buffer tank temperature, sensor 3
Prerequisite:
Master boiler in the cascade or hydraulic system 4 or fuel amount calculation
Display of the current temperature in the lower part of the buffer tank.
