Reflex Variomat Touch VS 2-1/35 Originalbetriebsanleitung Seite 41

"EC" expansion lines
Because of the degassing function, you must install two "EC" expansion lines.
•
One line to the system for the gas-rich water.
•
One line to the system for the degassed water.
The "DN" nominal connection diameter for the "EC" expansion lines must be
designed for the "P " minimum operating pressure.
0
 8.2 "Variomat switching points",  45.
Calculation P
0,
The "DN" nominal connection diameter applies to an expansion line length of up to
10 m. Beyond this length, select the next larger dimension. Integrate with the "V"
main flow volume of the system. Viewed in the system flow direction, the gas-rich
expansion line must be connected upstream of the expansion line transporting the
degassed water.
Ensure that particulate dirt cannot enter and thus creating an overload of the "ST"
dirt trap. Connect the "EC" expansion lines according to the following installation
variants.
Minimum operating
Type
pressure p (bar)
0
VS 2-1
VS 2-2/35
≤ 3.5
VS 2-2
VS 2-2 > 3.5

Note!
The water temperature at the connection point of the "EC" expansion
lines must be in the range of 0 °C to 70 °C. The use of auxiliary vessels
does not increase the range of use. Because the thermal protection is
not ensured due to the flow during the degassing phase.
7.3.4.2 Make-up line
If you don't connect the automatic water make-up, you must close the connection
of the "WC" make-up line with a R ½ " blind plug.
•
Prevent a potential device fault by ensuring manual water make-up.
• Install at least one "ST" dirt trap with a mesh size ≤ 0.25 mm close upstream
to the make-up solenoid valve.
–
Install a short line between the "ST" dirt trap and the solenoid valve.

Note!
Use a pressure reducer in the "WC" make-up line if the idle pressure
exceeds 6 bar.

Note!
If you use make-up water from the potable water system, you may need
the Reflex Fillset for the "WC" make-up line,  4.6 "Optional equipment
and accessories",  34.
•
Reflex make-up systems such as Reflex Fillset are designed for
make-up lines with a flow rate < 1 m³/h.
DN32 DN40 DN50
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Variomat Touch — 22.07.2024
7.3.5 Fitting the thermal insulation
Install the optional thermal insulation (2) around the primary tank (1) and close the
insulation with the zip fastener.

Note!
For heating systems, insulate the primary tank and the "EC" expansion
lines against heat loss.
–
Thermal insulation is not required for either the primary tank top or
the secondary tank.

Note!
On-site, install thermal insulation when condensate forms.
Installation
English — 41