ON/OFF Button 1.
Operation Light 2.
Current Operation Mode Icons 3.
Day/Time 4.
Temperature Icon 5.
Programming Button 6.
Timer Adjust Buttons 7.
Water Temperature Adjust
Buttons 8.
1.
ON/OFF Button: (not active when external
/
control is used)
2.
Operation Light: Lit when system is Heating or
Cooling. Blinks in the event of system
malfunction.
3.
Current Operation Mode: These icons
represent the current operation mode:
Heat
Cool
Domestic Water Heating
Quiet Mode
In some instances more than one mode icon can
be displayed at the same time. If the solar
option is installed and active the domestic water
heater icon will be blinking.
4.
4
Day/Time: The time display indicates the
Day/Time: The time display indicates the
current time(or the action day time when
reading or programming the schedule timer).
The day of the week indicator shows the current
weekday (or the set day when reading or
programming the schedule timer). Clock is 24hr
format.
5.
Temperature Icon: This icon is displayed when
the water outlet temperature of the indoor unit,
the outdoor ambient and the domestic hot
water tank temperature are shown. The icon is
also displayed when the temperature set point
is set in the schedule timer programming mode.
Quick User Guide
Altherma User Interface
Altherma User Interface
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Compressor
Pump
Backup Heater Steps 1 & 2
Booster Heating
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ARC448A3
6.
Programming Button: This multi-purpose button
is used to program the controller. The function of
the button depends on the actual status of the
controller or on previous actions carried out by
the operator.
7.
Timer Adjust Buttons: These multi-purpose
buttons are used to adjust the clock, to toggle
between temperatures (water outlet temperature
of hydro-box section, outdoor ambient
of hydro-box section outdoor ambient
temperature and domestic hot water
temperature) and in schedule timer programming
mode.
8.
Water Temperature Adjust Buttons: These multi-
purpose buttons are mainly used to control
leaving water set point for Heating/Cooling
Operation. They are also used for several
programming actions; schedule timer, outdoor
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reset and setting day of the week.
Heating/Cooling Water Set Point Range
Heating
59 - 131°F (15 – 55°C) 41 - 71°F (5 - 22°C)
9.
External Control Icon: This icon indicates that the
room thermostat (optional) is controlling
,
occupied space temperature. This external room
d
thermostat can start and stop the space
heating/cooling operation and change the
operation mode (heating/cooling).
Altherma User Interface
9. External Control Icon
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b
;
,
Cooling
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QUG-Altherma Interface 01.2011