Changing The Rotational Direction Of The Mixer Motor; Temperature Limiter For Restricting The Maximum Temperature - Viessmann VITOTRONIC 200 Installation And Service Instructions Manual

Weather-compensated, digital boiler control unit
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Components
Mixer extension kit

Changing the rotational direction of the mixer motor

gS
|
BU
~
Fig.59

Temperature limiter for restricting the maximum temperature

Immersion thermostat. 7151 728
Contact thermostat, part no. 7151 729
C
B
M
A
1~
Fig.60
Heating circuit pump
A
Temperature controller/temperature limiter
B
Plug
of the temperature controller/temperature
C
limiter to the control unit
90
(cont.)
1. Remove the upper casing cover of the extension
kit.
Danger
An electric shock can be life-threatening.
Before opening the boiler, disconnect from
the mains voltage, e.g. at the fuse or the
mains isolator.
2. At plug
, swap the cores at terminals
gS
3. Fit the casing cover.
Electromechanical temperature limiter according to the
liquid expansion principle.
Switches the heating circuit pump off when the set
value has been exceeded.
The flow temperature is only slowly reduced in this sit-
uation, i.e. it may be several hours before the system
restarts again automatically.
Connection: Screw terminals for 1.5 mm
Specification
Setting range
Switching differential
Immersion thermostat
Contact thermostat
and .
2
30 to 80 °C
max. 11 K
max. 14 K

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