Installation - oventrop DN 25 Einbau- Und Betriebsanleitung

NOTICE
When the circulation pump is switched off, a low
gravity circulation depending on the circulation
pressure is still possible within the heating system
despite the check valve as the latter is not tight
sealing.
5.3 Actuator
!
WARNING
The electrical connection must be carried out in
accordance with the valid regulations!
The pump groups with three-way mixing valve are
supplied with an actuator.
The following models are available:
Actuator NR230 for 230 V
Actuator NR24 for 24 V
Technical data actuator:
Operating current
Protective system
Torque
Operating time
Manual setting
Ambient temperature
Length of cable
The angle of rotation is limited to 90°. Having reached
the limit stops, the actuator is switched off electrically
and is without current. In case of malfunction of the
control system, the actuator can be converted to
manual operation with the help of an additional rotary
knob.
5.4 Markings
– CE marking on the pump and actuator:
CE marking
NR230:230 V 50 Hz
NR24:24 V 50 Hz
II (shockproof)
5 Nm
140 s
mechanical gear release
0°C up to +50°C
2.2 m

6 Installation

Installation, initial operation, maintenance and repairs
have to be carried out by authorised and qualified
tradesmen.
(EN 5011 part 1 and VDE 1000 part 10 for work on
electrical appliances)
Observe warning advice under paragraph 2
(safety notes)!
!
WARNING
Before starting work, make sure that the pipework
and components have cooled down and been
drained!
Before work commences, please ensure that all
electrical components (controllers, pumps, etc.)
are disconnected from the power supply!
The pipework has to be flushed thoroughly before
installing the "Regumat" connection group. Installation
is possible in any position (horizontal, oblique or
vertical in ascending or descending sections). It is
important to note that the direction of flow must
conform to the arrow on the assembly.
After installation, check all installation points for leaks.
!
CAUTION
Do not use any greasing agents or oils for the
installation, as these can destroy the seals. Any
dirt particles or grease or oil residues must be
flushed out before the boiler connection system is
installed.
When choosing the operating fluid, the latest
technical status has to be considered (e.g. VDI
2035).
A strainer has to be installed in front of the boiler
connection system.
Please protect against external forces (e.g. impacts,
vibrations etc.).
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