Pos. Icon Description
E
Settings menu
Settings menu number
F
Heating demand
Cooling demand
G
Comfort mode
H
ECO mode
Flashing icon in thermostat T-146
indicates activated holiday mode in the
system.
I
T-148 only
Digital clock
T-148 only
Parameter name in settings menu
T-148 only
Indicator showing AM or PM when the
thermostat is set to 12 h mode
No indication when the thermostat is
set to 24 h mode
J
T-148 only
Weekday selected/activated
1 = Monday
7 = Sunday
K
T-148 only
Time selected or scheduled hour
indicators, for Comfort mode, between
0:00 and 24:00
Half = 30 minutes
Full = 1 hour
L
Holiday mode
12.3 Operating buttons
The figure below shows buttons used to operate the
digital thermostats.
A
C
B
T-148
Pos. Description
A
The - and + buttons are used to:
• Adjust setpoint temperature
• Modify parameters in the settings menus
B
C
The OK button is used to:
• Toggle between current status data, and
values of available sensors connected to the
thermostat
• Enter and exit the settings menu
• Confirm a setting