Pressure And Flow Switch Function, Rws Function (Rainwater Collection); Rws Function (Rainwater Collection); Pressure Boosting Function - DAB ACTIVE SYSTEM Installationsanweisung Und Wartung

7. PRESSURE AND FLOW SWITCH FUNCTION, RWS FUNCTION (rainwater collection)

Start and Stop Pressure regulation
7.1 Dip-Switch regulation
Pressure and flow switch function: Dip Switch 1 OFF RWS function: Dip Switch 2 ON
7.2 Dip-Switch regulation: for choosing pressure values in pressure and flow switch function
Start pressure from 1.5 to 3 bar: Dip Switch 3 OFF Start pressure from 3 to 4.5 bar: Dip Switch 3 ON
Single Pump regulation
The Start Pressure can be regulated with the regulating Trimmer (see paragraph 5.2 - ref.1) on the front control panel, located on the cover of
the Active System.
Regulation of sets of 2 pumps
The Start Pressure can be regulated with the regulating Trimmer (see paragraph 5.2 - ref.1) on the front control panel, located on the cover of
the Active System of each pump.
Attention! The Start pressure of the SLAVE pump will always be 0.5 bar higher than the Start pressure set on the MASTER
pump! This happens even if the regulating trimmer set in the Slave pump is at a lower level than the one set in the Master
pump!
The pump, or the pumps in the case of sets, will stop when the pressure in the system exceeds the set Start pressure and when the
pump flow is lower than the value of 2-3 litres/min. (the green led will be lit with a fixed light).

8. RWS FUNCTION (rainwater collection)

8.1 Dip-Switch regulation
RWS function: Dip Switch 2 ON
8.2 RWS operation
The RWS function is used for managing and distributing rainwater.
The unit detects the lack of water in the collection system of both rainwater and mains water and makes the corrections to guarantee correct
operation of the system.
The main aim is to give priority to the consumption of rainwater rather than mains water.
The connection between the rainwater collection tank and the mains water tank is selected by a 3-way valve installed on the intake of the pump,
controlled by the optional relay (see paragraph 5-2 – ref.9-10).
8.3 Intervention against dry operation with external input inactive
Dip Switch 6 OFF
At the first intervention against dry operation, which occurs when the rainwater in the collection tank is insufficient, the unit passes to the mains
water supply by means of the optional relay (which switches the 3-way valve installed on intake).
8.4 Intervention against dry operation with external input active
Dip Switch 6 ON
At the first intervention against dry operation, which occurs when float closes due to lack of water in the rainwater collection tank, the unit
passes to the mains water supply by means of the optional relay (which switches the 3-way valve installed on intake).
The supply returns to the rainwater collection tank only when the flow of water is restored and the float contact opens again.
8.5 Checking the system
Cyclically every 12 hours the optional relay switches the 3-way valve on intake to the rainwater collection tank to check the presence of water.
If the water in the tank runs out after 2 minutes' operation, the unit passes directly to the mains water supply.
Once a week, during the first start of the system, it completely changes the water in the mains water collection tank to ensure greater hygiene.

9. PRESSURE BOOSTING FUNCTION

Start and Stop Pressure regulation
9.1 Dip-Switch regulation
Pressure boosting function: Dip Switch 1 ON
9.2 Dip-Switch regulation: for choosing pressure values
Start pressure from 1.5 to 6 bar: Dip Switch 3 OFF
Start pressure from 3.5 to 8 bar: Dip Switch 3 ON
Single Pump regulation
The Start Pressure can be regulated with the regulating Trimmer (see paragraph 5.2 - ref.1) on the front control panel, located on the cover of
the Active System.
The Stop Pressure is always set 1 bar higher than the Start pressure.
The pump will stop when the Stop pressure is reached or when the pump flow is lower than the value of 2-3 litres/min. (the green led will be lit
with a fixed light).
Attention! Never let the Stop Pressure exceed the Max. pressure contemplated by the pump (see technical data plate)!
Otherwise the system could activate the alarm against dry operation!
ENGLISH
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