Pump station and control + solar 12 liter expansion tank in one package Solar collector station SR881

Pump station and control + solar expansion tank

Size: 400 x 200 x 145 mm
Pump: Wilo 15-6 + another max. can be controlled. 200W pump!
Connecting cable: 1.5 meters
Connectors: 3/4"
Pressure gauge: 1-6 bar
Safety valve: 6 bar
Thermometer: 0-120 °C
Max. operating temperature 120'C
Flow meter
2 flow regulators (both electronic and manual)
shut-off tap with non-return valve,
filler tap
expansion tank connection point

+ Solar expansion tank -10°C +140°C

Volume: 12 l
Set pre-pressure: 2.5 bar
Max. pressure: 8 bar
Operating temperature: -10 °C / + 140 °C
Rubber membrane: EPDM HT
Height: 295 mm
Diameter: 280 mm
Connector: 3/4"

Solar control with expansion tank

1 round solar collector solar control station with WILO pump and built-in control + EXPANSION TANK!
Sensors: 2 tanks and 1 collector sensor
The entire station is polystyrene covered with insulation.
Time display (hour and week)
Frost protection
Water temperature display (tank, collector)
Memory function in case of power failure
ΔT controlled circulation
Display in case of sensor error< /span>
Time-controlled hot water circulation
Flow volume display
Time controlled heating
System pressure display (separate instrument )
Interval temperature controlled heating assistance
Max. collector temperature (collector cooling)
Max. tank temperature (tank cooling)
"Free" function

Inputs and outputs
1 collector temperature sensor
2 tank bottom-top temperature sensors
1 second pump
1 heating cartridge, max 1500W

Expansion tank made for solar collector system.

+ EXPANSION TANK

Solar expansion tanks can withstand higher temperatures compared to conventional heating tanks,
in addition to membrane is more resistant to solar (antifreeze) liquid. during.

In addition to thermal expansion, the possibility of steam formation must also be taken into account in solar collector systems.