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Viessmann VS 87 - Wiring Schematic

Viessmann VS 87
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22
FIG. 82
220-240V AC
50 Hz
Power
Supply
24V DC
Power In
Aux.
Out
Valve
Motor
Turbine
Sensor
Position
Switch
GND
+5
OUT
NO
C
1
Brown
Green
White
Red
Black
Red
Black
Control Board on
Back of Faceplate
24V DC
Auxiliary Output
WIRING SCHEMATIC
Programming the Water Softener
SETUP CHANGES
This feature allows a service technician to repeat the
setup procedure (See Page 10) or restore the soften-
er’s default operating values.
1. From any of the rolling status screens, press the OK /
MENU button to display the Main menu.
2. Press the DOWN q button to scroll through the
menu options until Advanced settings is highlighted.
3. Press the OK / MENU button to display the Advanced
settings menu.
4. Press the DOWN q button to scroll through the
menu options until Troubleshooting is highlighted.
5. Press the OK / MENU button to display the Trouble -
shooting menu.
6. Press the DOWN q button to scroll through the
menu options until Setup changes is highlighted.
7. Press the OK / MENU button to display the Setup
changes menu (See Figure 81).
Redo setup
Restore defaults
Cancel
Setup changes
FIG. 81
8. If the desired option already has a black dot next to it
(See Figure 81), go to Step 9. Otherwise, press the
DOWN q or UP p buttons to scroll to the desired
option, then press OK / MENU to choose it.
=Redo setup allows you to select a different model
code (intended to be used for upgrades or retrofits
of existing softener). Model codes are listed on
Page 2.
=Restore defaults will reset all customizable set-
tings to their default values and take you through
the “wizard” screen setup procedure (See Page 10).
=Cancel will return to the Troubleshooting menu.
9. Press the OK / MENU button.
+
AUXILIARY OUPUT
The electronic controller’s auxiliary output is used to
operate a chlorine generator. It provides a 24V DC, up
to 500 mA, current from terminal J8 on the electronic
control board (see schematic below). This current is on
during the brine draw portion of the softener’s regenera-
tion cycle.

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