OPTIMA rainwater unit 4BAROPTIMA rainwater unit 4BAR
OPTIMA rainwater unit 4BAR
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Reference code: 2398
EAN Code: 5413732009169
  • Family homes
  • Up to 25 m supply line between the storage tank and the rainwater unit
  • Up to 65 Litres per Minute
  • Efficient Stand-By-Mode
  • Rainwater for toilet flushing, washing machine, cleaning and garden irrigation

The OPTIMA 4 has two pumps: a submersible pump in the storage tank and a centrifugal pump in the rainwater unit. These deliver up to 65 litres of water per minute to the extraction points. The supply line between the storage tank and the rainwater unit can be up to 25 m in length. In normal operation, both pumps operate together, but when rainwater levels are low and the system needs to be topped up with mains water, the pump in the rainwater unit remains in operation on its own.

If the rainwater in the storage tank runs out during a prolonged dry spell, the system switches automatically to mains water operation. The low water level in the rainwater tank is sensed by the float switch. The rainwater units can also be switched manually to mains water operation at any time. A small top-up tank in the rainwater unit ensures an uninterrupted supply of water from the rainwater circuit.

Max. flow (L/min)
65
pumps
2-pump system
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