Operation
15
Compress 3400iAWS E – 6721852787 (2023/01)
Setting the DHW alternating operation
If DHW alternating operation is not activated, DHW heating has priority
and interrupts the heat requirement of the heating system, if necessary.
Menu: DHW alternating operation
Table 12 Settings for the DHW alternating operation
Settings for the DHW circulation
Menu: Circulation
Table 13 Settings for the circulation
3.3.3 Settings for the venting function
Menu: Ventilation
Table 14 Ventilation settings
Settings for a swimming pool
Menu: Pool
Table 15 Settings for pool heating
Menu item Description
DHW alt.
operation on
In the event of simultaneous DHW and heating
demand, the system will alternate between DHW
heating and heating mode based on the times set in
[Prioritise DHW for] and [Heating priority for].
Prioritise DHW
for
Duration of DHW heating.
Heating priority
for
Duration of heating mode.
Menu item Description
Op. mode • [Off]: Circulation is switched off permanently.
• [On]: The pump will run according to the settings under
[Start frequency]. The time program for the DHW
circulation pump is not active.
• The circulation can be linked to the time program for
DHW heating.
• [My circulation time prog.]: Set a time program for the
DHW circulation pump that works independently of the
time program for DHW.
Start frequency The start frequency determines how often the DHW
circulation pump goes into operation for three minutes at a
time every hour (1 x 3 minutes/h ... 6 x 3 minutes/h) or if it
is constantly in operation. Whatever the case, circulation is
only active during the times set in the time program.
My circulation time
prog.
6 switching times can be set for each day or group of days.
The DHW circulation pump can be switched on or off at
each switching time. The minimum duration of a time slot
between two switching times is 15 minutes.
Resetting prog. The time program is reset to factory default.
Menu item Description
Op. mode [Select vent. operating mode.]
• [Sleep]
• [High vent. rate] (high ventilation rate)
• [Auto (time program)]
• [Demand-ctrlled] (demand controlled)
• [Ex.air bypass] (exhaust air bypass)
• [Party vent.] (party ventilation)
• [Firepl.] (fireplace)
• [Fan speed 1 ... 4]
• [Ventil. switched off] (ventilation off)
Time program [Enter vent. time program.]
Reset time prog. [Reset ventilation time program.]
Humidity [Setting the desired humidity level]:
•[Dry]
•[Normal]
•[Moist]
Air quality [Setting the desired air quality level:
•[Adequate]
•[Normal]
• [High]
Bypass [Bypass] for more opening hours:
•[Open]
•[Close.]
Supply air temp.
control
Set the [Supply air temp.]:
• [Heating]
• [HtgCool] (heating and cooling)
• [Cooling]
•[Off]
Supply air temp.
control (Electric)
Set the [Supply air temp.]:
• [Heating]
•[Off]
Reheat supp.air
temp.
[Set the desired supply air temp. of reh. bank.]
10 ... 22 ... 30 °C
Filter timer [Set the time in months until the next filter change.]
1 ... 6 ... 12 Months
Confirm filter
change
The filters in the ventilation unit must be changed.
Please confirm the filter change.
Rename ventil.
zone
The names of the ventilation zones can be changed
in the same way as the names of the heating
circuits. This helps in choosing the right ventilation
zone.
Menu item Description
Switch on pool
heating
This setting enables the pool heating when it is
activated.
Pool
temperature
The water in the pool is heated to this temperature.
Allow add. heater
for pool
This setting allows the auxiliary heater to supply
heating for the pool if the heat pump cannot reach
the set temperature.
Menu item Description