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2 Safety notes
2.1 Correct use
Safety in operation is only guaranteed if the fitting is
used correctly.
The connection fitting "Multiblock T-RTL" is used in
two pipe heating systems with radiator/surface tem-
perature balance combination. It serves the room tem-
perature control and return temperature limitation of
interior surface heating systems. The fitting is suitable
for radiators with supply and return pipe connection
and with a distance of 50 mm between pipe centres.
Any use of the fitting outside the above applications
will be considered as non-compliant and misuse.
Claims of any kind against the manufacturer and/or
his authorised representatives due to damages cau-
sed by incorrect use cannot be accepted.
The observance of the installation and operating in-
structions is part of the compliance terms.
2.2 Possible dangers at the installation location
The case of an external fire has not been taken into
consideration when constructing the fitting.
WARNING
Hot surfaces
Risk of injury Do not touch the fitting without
safety gloves. It may get very hot during operation.
Sharp edges
Risk of injury Only touch with safety gloves.
Threads, bore holes and edges are sharp.
3 Transport, storage and packa-
ging
3.1 Transport inspection
Upon receipt check delivery for any damages caused
during transit.
Any damage must be reported immediately upon re-
ceipt.
3.2 Storage
The fitting must only be stored under the following
conditions:
– Do not store in open air, keep dry and free from
dust.
– Do not expose to aggressive fluids or heat sources.
– Protect from direct sunlight and mechanical agita-
tion.
– Storage temperature: –20 °C up to +60 °C,
max. relative humidity of air: 95 %
3.3 Packaging
Packaging material is to be disposed of environmen-
tally friendly.
8
4 Technical data
4.1 Performance data
Operating temperature t
Max. operating pressure p
Fluid:
Control range
return temperature:
Recommended
differential pressure range:
Pressure loss chart:
DANGER
Suitable measures (e.g. safety valves) have to be
taken to ensure that the maximum operating pres-
sures and maximum and minimum operating tem-
peratures are not exceeded or undercut.
4.2 Dimensions/Connection sizes
Thermostatic
Radiator
valve
isolation
Illustr. 3 Dimensions of fitting
Illustr. 4 Dimensions of mounting aid
:
2 °C up to 70 °C
s
:
10 bar
s
Water and suitable
water and glycol
mixtures according
to VDI 2035. Not
suitable for steam,
oily and aggressive
fluids.
10 °C up to 40 °C
30 up to 200 mbar
see pages 11 and 12
RTL
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