6 720 820 872 (2016/12) CR 400 | CW 400 | CW 800
40 | Service menu
Menu item Adjustment range Description
Activated Yes The required settings for the screed drying are displayed.
No
The screed drying is not active and the settings are not displayed (default
setting).
Dwell time before start No dwell time The screed drying program starts after the set waiting time (selected heating
circuits are switched off during the waiting time, frost protection is active;
default setting: no waiting time, Æ Fig. 25, time before day 0)
1 ... 50 days
Start phase duration No start phase Time delay between the beginning of the start phase and the next phase
(Æ Fig. 25, [1])
1 ... 3 ... 30 days
Start phase temperature 20 ... 25 ... 55 °C Flow temperature during the start phase (Æ Fig. 25, [1])
Heat-up phase step width No heat-up phase Time delay between the steps (increment) in the heat-up phase
(Æ Fig. 25, [3])
1 ... 10 days
Heat-up phase temp. diff 1 ... 5 ... 35 K Temperature differential between the steps in the heat-up phase
(Æ Fig. 25, [2])
Holding phase duration 1 ... 7 ... 99 days Time delay between the beginning of the holding phase (duration of the
maximum temperature for screed drying) and the next phase
(Æ Fig. 25, [4])
Holding phase temp. 20 ... 55 °C Flow temperature during the holding phase (maximum temperature,
Æ Fig. 25, [4])
Cool-dn phase step wdth No cool-down phase Time delay between the steps (increment) in the cooling phase
(Æ Fig. 25, [5])
1 ... 10 days
Cool-down phase t.diff 1 ... 5 ... 35 K Temperature differential between the steps in the cooling phase
(Æ Fig. 25, [6])
Endphase duration No end phase Time delay between the beginning of the end phase (last temperature step)
and the end of the screed drying program (Æ Fig. 25, [7])
Permanently
1 ... 30 days
End phase temperature 20 ... 25 ... 55 °C Flow temperature during end phase (Æ Fig. 25, [7])
Max. interruption time 2 ... 12 ... 24 h Maximum duration of a screed drying interruption (e.g. by stopping the
screed drying or power failure) until a fault display is output.
Screed dry. system Yes Screed drying is active for all heating circuits of the system
Notice: single heating circuits cannot be selected. DHW heating is not
possible. The display of menus and menu items with settings for DHW is
switched off.
No
Screed drying is not active for all heating circuits
Notice: single heating circuits can be selected. DHW heating is possible. The
menus and menu items with settings for DHW are enabled.
Screed dry H. circ. 1 ...
Screed dry h. circ. 8
Yes
Screed drying in the selected heating circuit is active/not active
No
Start Yes Start screed drying now
No
Screed drying not yet started or terminated
Interrupt Yes Temporarily stop screed drying. If the maximum interruption duration has
been exceeded, a fault display is output.
No
Continue Yes Continue screed drying after stop.
No
Table 18 Settings in the Screed drying menu (Fig. 25 shows the default setting of the screed drying program)
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