User Manual

Siemens

A6V10807602_en

Building Technologies 2018-07-17

Terminal Use

Q14 Control output; NO contact

Q21 Control input (com)

Q22 Control output; NC contact

Q24 Control output; NO contact

X1, X2, M Multifunctional inputs

Wiring diagrams

● The thermostat is delivered with one wired bridge ① (L-Q11) for easy installation of

AC 230 V HVAC equipment (example 1).

● When loads use voltages other than AC 230 V, bridge ① must be removed before wiring the

loads to the thermostat (example 2).

● If the load current through Y2 is more than 3 A, bridge between L-Q11 cannot be used.

Adapt parameter “Q22/Q24 electrical load” in “Advanced Settings” / “Optimization”.

● For application with higher currents (Y1 > 3 A or Y2 > 2 A), adapting parameter “Q22/Q24

electrical load” in “Advanced Settings” / “Optimization” accordingly is recommended.

Basic

① AC 230 V

Advanced

Example 1: Loads = AC 230 V

Example 2: Loads Y1, Y2 ≠

AC 230 V

① AC 230 V on Y1, Y2