Gardena 4030 Operating Instructions Manual page 5

Master Channel :
Connecting the valves :
18
The master channel is a channel that can be operated at the same
time as other channels. This is important, for example, if you want
to use a pump to supply your irrigation system with water and if
the pump should always be activated each time an irrigation valve
is activated.
The pump can be operated, for example, using the GARDENA
Pump Control Art. 1273 that is connected to the master channel.
The example shows the connection of 2 valves Art. 1278 in the
Valve Box Art. 1255 to the Watering Controller 4030 / 6030.
As the output of the Watering Controller is 24 V AC (alternating
current) for switching the valves, it is does not matter which of
the two cables of a valve is inserted into C.
Labelling the valves :
1
Label the valves (1 - 6), so that the channels (CHANNELS 1,
CHANNELS 2, ...) of the Watering Controller can be clearly
assigned to the valves.
Connecting the valves to the Valve Box :
2
Connect one cable of the valve V1 to the cable terminal 1 of
the valve box.
3
Connect the other cable of the valve V1 to a cable terminal C
of the valve box (All 4 cable terminals C are interconnected
and equivalent to one another).
4
Connect one cable of the valve V2 to the cable terminal 2 of
the valve box.
5
Connect the other cable of the valve V2 to a cable terminal C
of the valve box.
Other valves can be connected similarly to V1 and V2 .
Connecting the Watering Controller to the Valve Box :
6
Connect a cable terminal C of the Watering Controller to a
cable terminal C of the valve box. Both cable clips C are
connected to each other and equivalent.
7
Connect the cable terminal of channel 1 CHANNELS 1 to
the cable terminal 1 of the valve box.
8
Connect the cable terminal of channel 2 CHANNELS 2 to
the cable terminal 2 of the valve box.
Other channels can be connected similarly to CHANNELS 1
and CHANNELS 2 .
Cable cross-section of the connection cable :
The maximum permissible distance between the Watering
Controller and the valve depends on the cross-section of the
connection cable. For a distance of 30 m, the cross section is
2
0.5 mm and 0.75 mm
3 valves must be in operation at the same time.
The GARDENA connection cable Art. 1280 is 0.5 mm
and is 15 m long. Up to 6 valves can be connected using this
cable. The connection cable can be connected so that it is
watertight using the cable clip Art. 1282.
2
for a distance of 45 m. No more than
2
in size