8
DANGER
DANGER
indicates
an
imminent dangerous situation which will lead to death
or serious injury if the safety guidelines are not
observed.
WARNING
indicates
a
possible dangerous situation which may lead to death
or serious injury if the safety guidelines are not
observed.
NOTICE
NOTICE indicates a possible
damage to property which may occur if the safety
guidelines are not observed.
PRECAUTION indicates a
possible dangerous situation which may lead to minor
or moderate injury if the safety guidelines are not
observed.
!
WARNING
!
PRECAUTION
!
2 Safety notes
2.1 Correct used
Safety in operation is only guaranteed if the fitting is
used correctly.
The fitting “Multiblock TQ” is used in combination
with a thermostat or actuator in two pipe heating
systems with closed circuits and circulation pumps
for room temperature control and automatic flow
control (hydronic balancing) at radiators with supply
and return pipe connection with a distance of 50 mm
between the pipe centres.
They are only suitable for operation with unpolluted,
non aggressive fluids (e.g. water or suitable water and
glycol mixtures according to VDI 2035).
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
caused by incorrect use cannot be accepted.
The observance of the installation and operating
instructions is part of the compliance terms.
2.2 Possible dangers at the installation location
and during transport
The case of an external fire has not been taken into
consideration when constructing the fitting.
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
packaging
3.1 Transport inspection
Upon receipt check delivery for any damages caused
during transit and for completeness.
Any damage must be reported immediately upon
receipt.
3.2 Storage
The fitting must only be stored under the following
conditions:
–
Do not store in open air, keep dry and clean from
dust.
–
Do no expose to aggressive fluids or heat
sources.
–
Protect from direct sunlight and mechanical
agitation.
–
Storage temperature: –20 °C up to +60 °C
–
Max. relative humidity of air: 95 %
3.3 Packaging
Packaging material is to be disposed of
environmentally friendly.
Suitable measures (e.g. safety valves) have to be
taken to ensure that the maximum operating
pressures and maximum and minimum operating
temperatures are not exceeded or undercut.
DANGER
!
WARNING
!
4 Technical data
4.1 Performance data
Operating temperature t
s
:
2 °C up to 110 °C
Max. operating pressure p
s
:
1000 kPa (10 bar)
Control range:
10 – 170 l/h
The set values are visible from outside (without
table).
Control range:
∆p max.:
150 kPa (1.5 bar)
∆p min. (10-130 l/h):
10 kPa (0.1 bar)
∆p min. (>130-170 l/h):
15 kPa (0.15 bar)
A normal thermostatic valve function is given below
∆p min., i.e. the set flow value is undercut depending
on the differential pressure.
Fluid:
Water
or
suitable
mixtures of ethylene/
propylene glycol and
water according to VDI
2035
(max.
glycol
proportion 50%, ph
value 6.5-10).
Not suitable for steam
or oily, polluted and
aggressive fluids.
Pipework connections:
G
3
⁄
4
male thread
according to DIN EN
16313 (cone “Euro”)
Distance between pipe centres: 50 mm
