Construction And Function; Stainless Steel; Circuits - oventrop Multidis SF Einbau- Und Betriebsanleitung Für Fachpersonal

5

Construction and function

5.1 Summary and functional description
The stainless steel distributors/collectors "Multidis
SF" are designed for use in surface heating and
cooling systems with circulation pump. The stainless
steel distributors/collectors "Multidis SH" are used in
hot water heating and cooling systems with radiators.
The risers can be connected to the distributor/
collector from either the left or right hand side.
The brackets allow for the fixing of the distributor/
collector in the cabinet or directly onto the wall. The
flat sealing ball valves are directly connected to the
collar nut (G 1 female thread) of the distributors/
collectors. The surface
connections have a G ¾ male thread according to
DIN EN 16313 (cone "Euro") (illustr. 4.1).
Printed tags for marking the surface heating/cooling
circuit connections are supplied with the distributors/
collectors.
For filling, flushing and bleeding of the surface
heating/cooling

circuits,

distributors/collectors "Multidis SF" are equipped
with fill and drain valves with connection for a DN 15
hose connection.
For the stainless steel
"Multidis SH", the vent plug allows for bleeding
during filling and, if required, during operation of the
heating/cooling system.
5.2 Application
The stainless steel distributors/collectors "Multidis
SF" allow for the central distribution of the heating/
cooling water to the different circuits of each dwelling
unit. Together with electrothermal actuators and
room thermostats which are available as accessories,
the valve inserts M 30 x 1.5 in the return collector
which are convertible to thermostatic operation, can
be used for individual room temperature control.
Hydronic balance is carried out using the integrated
flow measuring and regulating devices.
The stainless steel distributors/collectors "Multidis
SH" for radiator connection allow for the central
distribution of the heating/cooling water to the
different radiators of each dwelling unit.
It is recommended to equip the stainless steel
distributors/collectors "Multidis" with ball valves
(illustr. 4.2). They allow for the isolation of the supply
and return pipe, e.g. for maintenance work.
6 Installation
6.1 Extent of supply
Before installation, check
completeness and any damages caused during
transit.
6.2 Installation
The flow distributor and return collector are pre-
assembled and leak tested. Mount the flow distributor
(at the top) and the return collector (at the bottom)
into the sound-absorbing brackets (illustr. 4.1).
heating/cooling circuit
the stainless steel
distributors/collectors
the delivery for
NOTICE
The flow distributor always has to be installed
at the top and the return collector at the
bottom of the bracket.
The ball valves which are available as accessories
(see illustr 4.2), are mounted with the help of the
collar nuts (G 1 female thread with flat seal). The
risers are, for instance, connected to the female
threads of the ball valves by use of the Oventrop
"Combi-System":
- "Copipe" Composition pipe
- "Cofit P" Press fittings
- "Cofit PD" Press fittings
-
"Cofit S" Screwed fittings
A thermal and sound insulation of the pipework
according to the valid rules, decrees, standards and
guidelines has to be carried out.
The surface heating/cooling circuits are connected to
the G ¾ compression connections at the flow
distributor and return collector of the stainless steel
distributor/collector "Multidis SF".
The pipework to the radiators is also connected to
the G ¾ compression connections at the stainless
steel distributor/collector "Multidis SH".
Observe warning advice under paragraph 2
(safety notes)!
!
CAUTION
– Do not use any greasing agents or oil for
the installation, as these can destroy the
seals. Any dirt particles or grease or oil
residues must be flushed out of the
pipework before installation.
– When choosing the operating fluid, the
latest technical development has to be
considered (e.g. VDI 2035).
– A strainer must be installed in front of the
stainless steel distributor/collector.
– Please protect against external forces
(e.g. impacts, vibrations etc.).
After installation, check all installation points for
leaks.
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