Altherma User Interface
Quick User Guide
Action Icons 11.
Schedule Time Icon 12.
22. Defrost/Startup Mode Icon
OFF Icon 13.
Setting Icon 14.
Test Icon 15.
Error Code 16.
Field Set Code 17.
Quiet Mode Button 18.
Outdoor Reset/Weather
23. Leaving Water Set Point
Temperature Display
24. Outdoor Reset/Weather
Dependent Icon
25. Not Available
26. Space Heating/Cooling Button
Dependent Button 19.
Inspection/Test Button 20.
Schedule Timer Button 21.
27. Domestic Water Heater Button
28. Domestic Water Heater
Temperature Adjust Buttons
ARC448A3
11. Action Icons: T
ese icons in
icate t
e
programming actions for each day of the
schedule timer.
12. Schedule Timer Icon: This icon indicates that
the schedule timer is enabled.
13. OFF Icon: This icon indicates that the OFF action
is selected when programming the schedule
timer.
Not used For installation purposes
22. De
rost
Startup Mo
e Icon: T
is icon in
icates
that the defrost/startup mode is active.
23. Set Temperature Display: The display shows the
current space heating/cooling set temperature of
the installation in °C or °F.
24. Outdoor Reset/Weather Dependent Icon: This
icon indicates that the controller will adapt the
temperature set point automatically, based on
the outdoor ambient temperature
.
.
only.
15. Test Icon: This icon indicates that the unit runs
in test mode.
16. Error Code: This code refers to the error code
list and is for service purposes only. Refer to the
error code list in the installation manual.
17. Field Set Code: This code represents the code
from the field set list. Refer to the "Field
.
25. Not Available: This icon is displayed whenever a
non-installed option is addressed or a function is
not available.
26. Space Heating/Cooling Button: This button
allows manual switching between heating or
cooling mode (provided the unit is not a heating
only unit).When the unit is connected with an
external room thermostat
this button is not
settings table" in Operation Manual.
18. Quiet Mode Button: This button enables or
disables quiet mode.
19. Outdoor Reset/Weather dependent Button:
This button enables or disables the outdoor
reset set point function which is available in
space heating operation only.
20. Inspection/Test Button: This button is used for
operable and the icon External Control icon is
shown.
27. Domestic Water Heater Button: This button
enables or disables heating of the domestic
water.
28. Domestic Water Heater Temperature Adjust
Buttons: These buttons are used to adjust the
current set point of the domestic hot water
QUG-Altherma Interface 01.2011
insta
ation purposes an
c
anging
ie
settings.
21. Schedule Timer Button: The main function of
this multi-purpose button is to enable/disable
the schedule timer.
temperature.
Domestic Water Heater Set Point Range
77 - 176 °F (25 – 80°C)