Gardena 4000/5 Руководство по эксплуатации - Страница 8

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Gardena 4000/5 Руководство по эксплуатации

Putting the pump

into operation

Manometric switch

Fault

Explanation of Terms

Priming cycle

Automatic self-priming

mode

(➔ yellow Alarm LED

flashes)

Re-plugging

(removing the mains plug

and then plugging it

back in the socket again)

Electronic Control Display

Operating status

As soon as you plug the mains plug into a socket supplying

230 V AC, the red and green LEDs light up – the pump starts.

The pump switches off once the max. pump pressure has been

reached (➔ the green Pump LED extinguishes).

If the pressure decreases below the switching pressure of

approx. 2.2 bar, the electronic control automatically switches

on the pump.

Note: Even the removal of a small quantity of water (several ml)

can lead to a pressure drop which is sufficient for the pump to

cut in.

Once you have finished drawing-off water, the maximum pres-

sure is created in the pipe. The pump then continues to run

for approx. 10 seconds before switching off.

The pump is switched off by the manometric switch if the liquid

to be pumped fails to flow (➔ dry-running safety).

A fault occurs if water cannot be pumped or if there is a lack

of water, for example:

If the flow rate is less than approx. 90 l / h

(➔ delivery side throttling)

If the flow rate is less than approx.400 l / h

(➔ inlet side throttling)

If there is a leak in the system causing the pump to switch on

and off more than 7 times within 2 minutes.

Due to a suction hose without a backflow preventer.

The pump attempts to restore normal operation in 4 minutes.

After a fault, the pump's electronic control unit makes three auto-

matic self-priming attempts at different time intervals (after 1 hour,

after 5 hours and after 20 hours) to restore normal operation.

The priming cycle (see above) is used for each of these attempts.

Important ! Remove the plug from the socket ! Check the unit

and pump for any faults (see section "Finding Faults"). Rectify

any faults and restart the pump by plugging the mains plug into

a socket supplying 230 V AC.

lit

flashing

RESET Button

The RESET button is used to reset and restart the pump after

a fault.

flashing quickly