Operation; Filling And Bleeding The System - Oventrop Multiblock Tq-Rtl Einbau- Und Betriebsanleitung

6.2 Installation of radiator and fitting
The radiator is mounted with due consideration of the
installations dimensions (illustr. 3) and the designed
wall construction (e.g. tiles). Cut pipes for the heating
circuit to length.
Screw "Multiblock TQ-RTL" to the radiator tension-free
(torque 20-30 Nm) and connect to the pipework of the
heating circuit by use of compression fittings. Supply
to connection "HV" and return to connection "HR".
The connections of the fitting "Multiblock TQ-RTL" to
the radiator are soft sealed.
The fittings for radiators with female thread G ½ (F)
are supplied with self sealing nipples.
When used with radiators with male thread G ¾ (M)
according to DIN EN 16313 (cone "Euro"), corresponding
inserts (item no. 1661100) are to be used.
Connection of the pipework to the male threads G ¾
according to DIN EN 16313 (cone "Euro") by use of
compression fittings.
Observe warning advice under paragraph 2
(safety notes)!
!
PRECAUTION
– D o not use any lubricant or oil when installing
the fitting as these may destroy the seals. If
necessary, all dirt particles and lubricant or oil
residues must be removed from the pipework
by flushing the latter.
– W hen choosing the operating fluid, the latest
technical development has to be considered
(e.g. VDI 2035).
– A strainer must be installed in the supply pipe
to avoid contaminated operating fluids (see VDI
2035).
– P lease protect against external forces (e.g.
impacts, vibrations etc.).
6.3 Installation of the surface circuit
When designing the floor as surface heating, the
construction regarding thermal and sound insulation,
has to comply with the valid rules, standards and
regulations.
Once the insulation has been applied, the supply pipe
of the surface circuit is connected to the connection
"FV" and the return pipe to the connection "FR" of
the "Multiblock TQ-RTL" (illustr. 10). Now the pipes
are fixed in the mounting aid (see pos. 6.1).
The surface circuit has to be laid in a spiral pattern in
order to achieve a constant temperature distribution
(illustr. 6).
The surface heating circuit can be installed with any
standard pipe material. The Oventrop programme
includes suitable compression fittings. The
corresponding installation instructions are to be
observed.
Illustr. 10 Wall view, surface temperature balance

7 Operation

7.1 Filling and bleeding the system

The system has to be filled and bled before initial
operation. To do so, turn the flow setting of the
thermostatic valve to the maximum value.
Carry out leakage test with due consideration of the
permissible operating pressures. The wall channels
can be plastered now.
7.2 Important note for heating up
After having laid a heating screed complying to the
standards, the concrete or anhydrite screed are heated
up according to EN 1264-4.
Start heating up:
– at the earliest 21 days after having laid the concrete
floor
– at the earliest 7 days after having laid the anhydrite
concrete floor
Heat up slowly!
3 days with a flow temperature of about 25°C and then
4 days with a flow temperature of about 55°C.
Flow temperature is only controlled by the boiler control.
Further instructions of the screed manufacturer must
be observed.
7.3 Setting of the flow rate
Set the flow rate to the required value by use of the
presetting key (pos. 4, illustr. 5). Setting can only be
carried out with the help of the enclosed presetting
key which is fitted to the handwheel (pos. 2a, illustr.
5). This will prevent unauthorised tampering.
The required setting must be in line with the marking
(see illustr. 11). The setting is infinitely adjustable and
can be modified whilst the system is in operation; water
will not escape.
Illustr. 11 Setting of the flow rate
Plaster
Pipework, surface
temperature balance
Upper edge
finished floor
Insulation
Marking
Setting x 10 [l/h]
= 170 l/h
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