Top climate system
with LUBING Touch Controller
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15
Example: art. 7126-V1-B
Further safety measures must be provided by the customer according to the valid regulations. As a general rule:
• The pump unit must be earthed.
• The power supply must be designed in accordance with Section 9 “Technische Daten/Technical data”.
• If a Vario pump unit is connected to a TT or TN network with a residual current circuit breaker, a universal
current-sensitive residual current circuit breaker type B with a leakage current of 300 mA must be used.
• To connect a Vario pump unit to an IT network, the jumper is set to CY=OFF. This, however, impairs the radio
interference suppression of the frequency inverter (see chapter 7 “Troubleshooting”).
The pump unit must not be connected to the power supply until “First start-up” (chapter 5.1)!
4.2 Installation of the water supply
Selection of the filter unit:
If a pump unit is connected directly, a filter unit with integrated main valve is required (the valve plug is connected
to the Touch Controller). A 1/2”-valve is sufficient for up to 25 l/min, a 3/4”- valve is required for more than 25 l/min.
A pressure gauge is installed behind the valve. While the pump is running, it must be ensured under all operating
conditions that the pressure at this pressure gauge (inlet pressure of the pump) is
1...4 bar
. Filter units with bypass
can be used for the dosing of additives, in which any 3/4” dosing units can be installed. Usually filter units with 4
filters are used, only with very good water quality on site, filter units with only 2 filters can be used. The smallest
required filtration degree is 1 micron.
Mount the prefabricated filter battery horizontally on a wall or bracket near the pump unit.
Be sure to observe the installation direction! Filter sizes are pressed into the filter inserts (25 micron, 10 micron, 5
micron, 1 micron). The water must flow through the filter battery in this direction. This ensures optimum filtration of
the supply water and a long service life of the filter cartridges.
The supply line is connected to the input of the filter unit (3/4” IT). The supply line should at least correspond to the
diameter of the pump suction connection, preferably larger, and should be as free as possible of resistances and
throttling points. There is a hose connector at the outlet of the filter unit. Here the 3/4” hose of the pump unit (or a
hose to a tank) is connected. The hose must be laid in such a way that it is not bent too much and does not rub.
The valve connector cable is connected to the Touch Controller according to the “Wiring plans” (chapter 7). After
the connection, the manual shut-off valve can be opened and the filters can be put under water. Before switching
on the system, the filters need to be vented: Open the breather valves on the filter head until only water emerges.
When later replacing used filter cartridges, make sure that the O-ring is cleaned and lightly greased (e.g. with
Vaseline).
IMPORTANT INFORMATION
Make sure that the order of the filter cartridges is correct.
Check the condition of the filter cartridges regularly. If they are very dirty, replace them. Regular replacement
(e.g. once a year) is recommended. Dirty filters can lead to an insufficient inlet pressure below 1 bar.
When using a chem. filter cartridge (5 micron chem.), it must be replaced regularly (twice a year or after
150 m
3
flow).
