Gardena 9020-29 Operator's Manual - Page 5

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In order to avoid dry-running of the pump, take care that the end of the suction

hose is always submerged into the liquid.

v Before each operation, fill the pump to overflowing with approx. 2 to 3 l of the

liquid to be pumped!

Sand and other abrasive substances cause increased wear and reduce the

pump's output.

v Use a pump pre-filter for pumping sandy liquids.

Pumping dirty water, e.g. stones, pine needles etc., can cause damage to the

pump.

v Do not pump dirty water.

2. ASSEMBLY

DANGER! Risk of injury!

Injury when the product starts accidentally.

v Disconnect the product from the mains before you assemble

the product.

To set up the pump:

The site must be firm and solid in order to ensure safe and sturdy operat-

ing conditions for the pump.

v Position the pump at a safe distance (min. 2 m) from the water.

The pump must be installed in a location with low air humidity and suffi-

cient ventilation in the area of the ventilation slots. It must be at a distance

of at least 5 cm from the walls. Dirt (e. g. sand or soil) must not be sucked

in through the ventilation slots.

The plastic connection pieces on the intake and delivery sides may

only be tightened by hand.

Fixed installation of the pump [ Fig. A1 ]:

A mounting plate

(12)

e. g. wooden plate (not included) prevents the pres-

sure tank unit from slipping.

v The Pressure Tank Unit can be screwed with all 4 feet

surface

(12)

(We recommend the use of inbus screws).

Install the pressure tank unit so that there is room to place a suitably sized

drainage tray under the drain screw

drained.

If possible, install the pump higher than the surface of the water to be

pumped. If this is not possible, install a vacuum-resistant valve between

the pump and the suction hose.

For permanent indoor installations for domestic water supply, the Pressure

Tank Unit should not be connected to the domestic water pipework with

rigid pipes but with flexible tubing, to reduce noise and to avoid damage to

the pump caused by pressure blows.

If the system is being installed permanently, please fit suitable valves on

both the intake and delivery sides. This is important e. g. for maintenance

and cleaning work or if the system is being shut down.

To connect the hose to the suction side [ Fig. A2 ]:

Don't use any hose quick connection system fittings on the suction side!

v A vacuum-resistant suction hose must be used, e. g. GARDENA

Suction Unit, Art. 1411 or GARDENA Bore Hole Suction Hose

Art. 1729.

A suction hose with backflow preventor must be used so that

the suction hose does not drain automatically when the pump

is switched off.

We recommend to install an additional non-return valve,

e. g. GARDENA intermediate brass valve Art. 7231, between the

pump connection piece and the hose.

1. Screw the pump connection piece

(1)

side

2. Connect the vacuum-resistant suction hose

connection piece

(2)

of the pump.

3. For suction heights exceeding 4 m: Also fix the suction hose

(e. g. by fastening it to a wooden post).

This relieves the pump of the weight of the suction hose.

To connect the hose to the pressure side [ Fig. A3 ]:

The pump connection

(4)

is equipped with a 33.3 mm (G 1") internal

thread.

E. g. a GARDENA pump connection piece Art. 1745 is required for

the GARDENA Connection System (for Art. 9020 included in scope of

delivery).

Tip: If permanent pipes are installed, they must be laid at an

ascending angle in order to allow the water to flow back into the

pump on the pressure side.

(11)

onto a solid

(9)

to allow the unit or system to be

(2)

into the connector on the suction

(3)

airtight to the pump

(3)

Optimised use of the pump capacity is achieved by connecting

19 mm (3/4") hoses with e. g.

– GARDENA Pump Connection Set Art. 1752,

or by connecting 25 mm (1") hoses with

– GARDENA Quick Thread Coupling with male thread Art. 7115 /

Quick Coupling Hose Connector Art. 7103.

1. Only for Art. 9022: Use sealing tape

pump connection piece.

2. Screw the pump connection piece

(4)

side

(Only with Art. 9020 in the scope of delivery).

(5)

3. Connect the pressure hose

If more than one hose /accessory is connected simultaneously, we

recommend using the

– GARDENA 2- or 4-Channel Water Distributor Art. 8193 / 8194,

GARDENA Twin-Tap Connector Art. 940

which can be screwed directly onto the pump connection piece

3. OPERATION

DANGER! Risk of injury!

Injury when the product starts accidentally.

v Disconnect the product from the mains before you connect,

adjust or transport the product.

To pump water [ Fig. O1 / O2 ]:

CAUTION! Dry-Running of the pump!

v Fill the pump with water up to the overflow (approx. 2 to 5 l)

before each start-up.

1. Check the pressure in the storage tank (see 4. MAINTENANCE).

(6)

2. Unscrew the screw fitting

of the filler neck

3. Fill the pump via the filler neck

approx. 2 to 5 l of water.

(6)

4. Tighten the screw fitting

of the filler neck

(do not use pliers).

5. Open any shut-off valves in the delivery line (accessories,

water stop, etc.).

6. Drain remaining water in pressure hose

during the suction process.

7. Connect the pump to the mains.

8. Lift and hold the delivery hose

(8)

press the On / Off switch

and wait until the pump has primed.

v If the pump does not deliver water after approx. 5 minutes,

switch off the pump (press On / Off switch

(see 6. TROUBLESHOOTING).

Once the maximum pressure is reached the pump will switch off automati-

cally. When the pressure falls below the minimum value due to water being

drawn off, the pump will switch on again automatically.

The specified maximum self-priming suction height of 7 m is reached

only if the pump is filled via the filler neck

doing so and during the self-priming, the delivery hose

ficiently high to prevent any water escaping from the pump via the delivery

hose

(5)

Rust formation: The pump Art. 9022 has a cast iron housing. After con-

tact with water, rust will form (this does not damage the pump and is not

covered by the warranty). Therefore rusting water may initially escape after

switching on the pump.

4. MAINTENANCE

DANGER! Risk of injury!

Injury when the product starts accidentally.

v Disconnect the product from the mains before you maintain

the product.

To flush the pump:

After pumping chlorinated water, the pump must be flushed.

1. Pump lukewarm water (max. 35 °C), possibly adding a mild cleaning

agent (e. g. detergent) until the pumped water runs clear.

(P)

on the external thread of the

(2)

into the connector on the delivery

(2)

to the pump connection piece

(2)

(7)

by hand.

(7)

to overflowing with

(7)

by hand

(5)

so that air can escape

(5)

at least 1 m vertically above the pump,

(8)

)

(7)

up to the overflow and if, while

(5)

is held up suf-