Solar thermal collectors


Integrated exchanger

Solar domestic hot water

High efficiency circulator pump

The solar charging station DN32 with integrated exchanger ensures optimal transfer of solar heat energy towards the hot water storage tanks.
The presence of high efficiency circulators and of the controller 600i allows a perfect adaptation of flows in response to fluctuations in solar radiation, temperatures in the storage tanks and different requirements requested.
The station is fully assembled, pre-wired and factory-set to facilitate commissioning. It is designed for floor mounting and is fully insulated. This station is adapted for up to 140m²aperture of flat-plate collectors SUN 300 and up to 66m²absorber of vacuum tube collectors SUN 400.


Technical descriptionDocumentaries

Technical description

  • Domestic Hot Water Secondary
    1 anti-thermosiphon check valve 150mm (can be opened) (secondary flow)
    2 piston valves (secondary flow and return with drain valve
    Secondary safety valve 10 bar
    Simple domestic high efficiency circulator pump GRUNDFOS UPML 25-105 N
    Generoulsy sized exchanger 2×60 brazed plates stainless steel AISI 316 in counter-current
    Secondary drain valve
    Expanded PolyPropylene insulating elements (can be removed individually)
    Solar Primary
  • Primary safety group:

– Solar safety valve 6 bar – 3/4” int
– Solar fill valve
– Pressure gauge 0-6 bar
– Expansion vessel connection 1″ ext with flat seal

  • 2 ball valves (primary flow and return)with fill and drain valve
  • 2 anti-thermosiphon check valves 200mmCE (can be opened) (primary flow and return)
  • Simple high efficiency solar circulator pump GRUNDFOS SOLAR UPM XL 25-125
  • Permanent primary air bleeder with manual air vent valve and temperature sensor
  • Solar electronic flowmeter 5-130 l/min and temperature sensor
  • Fill and drain primary valve
  • Solar controller 600i with 4 temperature sensors Pt1000 including 2 installed on the primary for heat quantity measurement (with primary flowmeter)

Available model: