Solar station FlowCon FA Evolution II

USE in closed loop design only. The circulation unit is used on the primary circuit of solar heating systems to control the temperature in the hot water storage. The pump inside the unit is activated by the signal from the differential temperature controller (not included in delivery). This unit contains the functional and safety devices for optimum circuit control.

Features:

• All medium-bearing parts are made of brass.
• All connections ¾" female.
• With pre-assembled steel wall bracket.
• Full port ball valve in return pipe
  and connection for temperature sensor.
• Check valve inside the supply and return ball valve,
  manual opener, 2 x 200mm WC each, special design for solar thermal systems, avoid any gravity circulation.
• Large ball valve handles easy grip and visible closing position.
• Airstop in the supply line
  for a permanent deaeration of the heat transfer medium.
• Function-optimized design insulation made of durable elastic EPP;
  100% insulation of the fittings – excellent pump ventilation and cooling.
• Solar safety assembly
  pressure relief valve 87 psi/6 bar, high-temperature pressure gauge 0-87 psi/0-6 bar, with shut off valve, drain valve for flushing and filling, flat sealing connection for expansion tank.
• Full metal solar temperature gauges, 32-320°F/0-160 °C
  can be pulled off, with immersion sleeve integrated in the ball valve.
• Fully assembled with flat sealing union connections.
• With three speed solar circulation pump by Wilo
  without wire.
• Pump can be completely isolated, no draining necessary during servicing.
• Flowmeter
  Flow quantity measuring device with adjustable flow quantity gauge and function control device, installed in the (cold) return - up to 266 °F/130 °C heat resistant – two measurement ranges: 0.8-6 USgpm or 3-22 l/min.
• Flush and fill unit integrated
  two drain valves (at the flow meter and at the safety assembly) permit filling and flushing the system.

The unit components enable:

• Medium circulation with specific pump
• Safety against pressure increase
  
• Accurate flow rate control
  
• Filling/draining the circuit
  
• Measuring the supply and return line temperature
  
• Separating the air contained in the circuit
  
• Shutting off the circuits and anti thermosyphoning
• Thermal insulation