EN
Operating manual – DA 4 / DA 4 M Flow Rate Control Unit
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the measurements on an integrated USB flash drive.
Previous drying processes are thus documented. The
DA 4 M flow rate control unit additionally sends the
sensor measurements to a WEB centre and thus of-
fers online remote monitoring of the drying process.
02. ReAD BeFoRe CommISSIonInG
The DA
4 / DA 4 M flow rate control unit is to be
used as a control unit for drying insulation layers in
the suction process of floor screed or flat roofs ex-
clusively. The unit consists of a casing in which the
valves, the control unit and the connection nozzles are
installed, as well as the humidity sensor with adapter,
which is plugged into the respective holding fixture for
transportation purposes. During operation, the sensor
is installed at a four-fold distributor at the compressor
by means of the adapter.
the humidity sensor must not have direct con-
tact with water!
never place items on the device or step on it.
The flow rate control unit can be used with all con-
ventional compressors in suction processes for the
drying of insulation layers. Furthermore, the device is
specifically aligned to the Trotec Multi-Qube modules
VE 4, WA 4,WA 4i, WA 6 and VE 6.
The task of the flow rate control unit is to efficiently
distribute the suction flow to the existing core drill
holes; it is positioned between the water extractor
and the core drill holes. Water, particulate matter, fine
dust or other small particles are not filtered through
the device. Foreign bodies of this kind do not impair
the function of the device.
Foreign bodies with a diameter of more than
15mm may lead to a clogging of the valves. For
this reason, the core drill hole is to be cleaned
thoroughly before drying. An industrial vacu-
um cleaner is suitable for cleaning.
The flow rate control unit does not have any defined
inputs and outputs. It is irrelevant from which side the
hoses are connected.
All three inputs and all three outputs must be
connected and used.
Ensure a proper connection of the inputs and outputs.
Insufficient connections with the aluminium nozzle of
the flow rate control unit may result in leakages. This
will lead to reduced drying performance. In a worst
case scenario, water leaks from the connection and
causes water damage. Use hoses with smooth and
elastic internal surfaces or spiral hoses with a cor-
responding special clamp. With the flow rate con-
trol unit, you can directly control three core drilling
holes. By means of T/Y pieces or other distributors,
the number of the controllable core drilling holes can
be expanded. Here, ensure that the core drilling holes
which are controlled via one duct are grouped closely
together.
Generally, before using the MultiQube elements, wa-
ter in the core drilling holes must be removed via suc-
tion before starting the drying process. This shortens
the drying time for rectifying the water damage.
All three ducts of the flow rate control unit must be
connected as otherwise correct functioning cannot
be guaranteed and the connected compressor turbine
will be damaged.
The use of a flow rate control unit in explosion-risk
rooms and atmospheres is inadmissible.
The flow rate control unit may only be operated by
specialist staff and experts who have been instructed
regarding the operation of the devices and are trained
in the area of insulation layer drying technologies.
The operating manual must be followed. Instructed
persons are persons who have been informed and,
if required, trained regarding the tasks transferred to
them and the possible hazards occurring in the event
of inappropriate behaviour.
Repair and maintenance work on electrical parts may
only be executed by a specialist electrician. On con-
struction sites, the DA
4 may only be connected via
an electrical 1~230V, 50Hz; 16A energy supply with a
corresponding upstream FI residual current operated
protective device (RCD) 30mA, in accordance with
with DIN VDE 100.
