Reflex Servitec 35 Originalbetriebsanleitung Seite 32

Installation

Note!
During installation, pay attention to the operability of the valves and the
inlet options for the connecting lines.
6.3.1 Fitting the add-on components
Install the "DV" degassing valve (2) with the check valve (1) on the "VT" vacuum
spray tube. Check all screw fittings of the Servitec for proper seating.
6.3.2 Installation location
The Servitec is installed on the floor. Select the attachment means according to
the floor properties and the weight of the Servitec.

Note!
Consider a potential difference in head "h
vessel and the device when calculating the "P
pressure.
6.3.3 Hydraulic connection
6.3.3.1 Degassing line to the system
The Servitec requires two "DC" degassing lines to the system. One degassing
line is intended for gas-rich water from the system, and the other one serves to
return the degassed water to the system. For both degassing lines, shut-off
devices have been pre-installed at the Servitec. The connection of the degassing
lines must be made within the main volume flow of the overall system.
Servitec installation in a heating system – Pressure maintenance with
"MAG" expansion vessel
1 Expansion vessel
2 Servitec
3 "DC" degassing line (degassed water)
4 "DC" degassing line (gas-rich water)
Optional equipment and accessories  4.5 "Optional equipment
5
and accessories",  30
6 "WC" make-up line
The degassing lines into the system are installed near the integration of the "EC"
expansion line. This ensures stable pressure conditions.
32 — English
" between the expansion
st
" minimum operating
0
Vacuum spray degassing — 01.04.2022-Rev. D
If you operate the Servitec with pressure-dependent water make-up, you must
install the system near the diaphragm-type "MAG" expansion vessel. This
ensures that the pressure in the diaphragm-type expansion vessel is monitored.
In this case, select the "Magcontrol" operating mode in the controller.

Note!
Ensure the integration in the "V" main flow volume when using switching
variants with hydraulic switching points and return admixtures.
–
For switching and make-up variants,  6.4 "Switching and make-
up variants",  33.
Installation detail of the "DC" degassing line
Connect the "DC" degassing lines as shown below.
•
Ensure that particulate dirt cannot enter and thus create an overload of the
Servitec's "ST" dirt trap.
•
Connect the degassing line for gas-rich water upstream of the degassing
line for degassed water in system direction of flow.
•
Ensure that the water temperature is in the range > 0 °C- 90 °C. The
return line side should be preferred for heating systems. Consequently the
degassing capacity will be independent of the temperature.
6.3.3.2 Make-up line
1 Servitec
2 "WV" 2-way motorized ball
valve
For a water make-up via a "BT" mains disconnect receptacle, its bottom edge
must be at least 1000 mm above the "PU" degassing pump.
Various Reflex make-up variants,  6.4 "Switching and make-up variants",
 33.
If you do not connect the automatic water make-up, you must close the
connection of the "WC" make-up line with a R ½ " blanking plug and start up the
system in "Levelcontrol" mode.
For external water make-up, note the following conditions:
• Install at least one "ST" dirt trap with a mesh size ≤ 0.25 mm close
upstream to the "WV" 2-way motorized ball valve or use our Fillset.

Note!
When using an external system make-up, ensure that no Servitec fault
occurs as a result of different operating parameters.
3 "BT" system separator
vessel
4 "ST" dirt trap