Installation Sequence; Installing The Extension Kit; Fitting The Flow Temperature Sensor - Viessmann OpenTherm Installation And Service Instructions For Contractors

Installation sequence

Installing the extension kit

Install the device near the mixers and
heating circuit pumps in the installation
room.
1.

Fitting the flow temperature sensor

■ Fit the flow temperature sensor to the
heating flow pipe immediately down-
stream of the heating circuit pump in
the flow direction.
■ If using plastic pipes, fit the sensor to
a metal intermediate pipe section.
10
2.
■ Clean the flow pipe down to bare
metal.
■ Heat conducting paste is not
required.
■ Never thermally insulate the sensor.