Servitec 35-95 with
— 18.12.2019 - Rev. A
English —
7.2 Setting the minimum operating pressure for Magcontrol
The "p
0
" minimum operating pressure is determined by the location of the
Servitec.
p
st
Static pressure = static head (h
st
)/10
p
0
Minimum operating pressure = p
st
+ 0.2 bar (recommended)
p
a
Initial pressure (cold water filling
pressure)
= p
0
+ 0.3 bar
p
e
Final pressure ≤ p
Sv
- 0.5 bar (for p
Sv
≤ 5.0 bar)
p
Sv
Safety valve actuating pressure = p
0
+ 1.2 bar (for p
Sv
≤ 5.0 bar)
The calculation of the minimum operating pressure can be directly calculated
and saved during initial commissioning using the Reflex Control Smart app for
configuration. Please always check the correct inlet pressure of the expansion
vessel in the system. Proceed as follows:
1 In the app, set the controller to "Magcontrol".
2. Determine the "P0" minimum operating pressure of the device relative to
the "p0" initial pressure of the expansion vessel.
• The device is installed at the same level as the expansion vessel
(∆h
st
= 0).
– P
0
= p0*
• The device is installed at a lower level than the expansion vessel.
– P
0
= p0 + ∆h
st
/10*
• The device is installed at a higher level than the expansion vessel.
– P
0
= p0 - ∆h
st
/10*
* p0 in bar, ∆h
st
in m
Note!
The safety valve actuating pressure must always be observed for the
target value of
the Servitec
(see calculation formula).
Note!
Avoid dropping below the minimum operating pressure. Vacuum,
vaporisation and the formation of vapour bubbles are thus excluded.
7.3 Controller
7.3.1 Operator panel
1 Message line 8 Display value
2
"▼"/ "▲" buttons
• Set digits.
9 "Manual mode" button
• For function tests.
3
""/"" buttons
• Select digits.
10 "Stop mode" button
• For commissioning.
4 "OK" button
• Confirm/acknowledge
input.
• Browse in the menu.
11 "Automatic mode" button
• For continuous operation.
5 "Up" and "Down" scroll bar
• "Scroll" in the menu.
12 "Set-up menu" button
• For setting parameters.
• Fault memory.
• Parameter memory.
• Display settings.
• Software version
information.
6 "Scroll back" button
• Cancel.
• Page back to the main
menu.
7 "Display help texts" button
• Opens help texts.
13 "Info menu" button
• Displays general
information.
7.3.2 Calibrating the touch screen
You can calibrate the touch screen when touching the desired buttons does not
work satisfactorily.
1. Switch the device off at the main switch.
2. Touch and hold the touch field with your finger.
3. Switch on the main switch while touching the touch field.
– When starting the program, the controller automatically switches to
the "Update/Diagnostics" function.
4. Touch the "Touch calibration" button.
5. Touch the displayed crosses on the touch screen after each other.
6. Switch the device off and on again at the main switch.
The touch screen is fully calibrated.
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