Siemens QAW740 Installation Instructions Manual page 26

Are you too warm or too cold?
Using the setting knob, you can raise or lower the
room temperature setpoint of Comfort mode
maximum of 3 °C (6 °F).
What is the meaning of the following
displays?
The following operating states can be displayed:
Comfort mode
Precomfort mode
Economy mode
Protection
(frost protection)
12
74 319 0328 0 a - B1633
by a
Comfort function active
Waiting for controller data
Fault
Entry not possible at the
moment
Operating Instructions