Split system (Single phase and 3-phase type)
Maintenance Document 1544-1 53
COMMAND
LINE
ACCESS
LEVEL
FUNCTION SETTING RANGE
FACTORY
SETTING
9073 U Relay output QX33 Off/on Off
9074 U Relay output QX34 Off/on Off
9075 U Relay output QX35 Off/on Off
4.3 Adjustment Function Details
4.3.1 Date and Time Functions
The controller has an annual clock which contains the time, the day of the week and the date.
In order for the function to operate, the time and date must be set properly on the clock.
LINE NO. PROGRAMMING LINE
1 Hour/minutes
2 Day/month
3 Year
5 Start of summertime
6 End of summertime
NOTE: Summer time/winter time change
Dates have been set for changing to summer time or to winter time. The time changes automatically from 2am
(winter time) to 3am (summer time) or from 3am (summer time) to 2am (winter time) on the first Sunday
following the respective date.
4.3.2 User Interface Functions
LINE NO. PROGRAMMING LINE
20 Language
22 Info
26 Operation lock
27 Programming lock
28 Direct adjustment...
29
Temperature unit
Pressure unit
Info (22):
Temporary:
After pressing the Info key, the information display
returns to the basic "predefined" display after 8
minutes or when pressing the operating mode key.
Permanent:
After pressing the Info key, the information display
returns to the "new" standard display after a
maximum of 8 minutes. The last selected information
value is shown in the new basic display.
Operation lock (26):
If the operating lock is activated, the following control
elements can no longer be adjusted:
Heating circuit mode, DHW mode, room temp comfort
setpoint (knob), occupancy key.
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