65
INSTALLER SETTINGS menu settings (for installers only)
6 720 617 763 (2008/09)
8.9 Screed drying function
Installer settings: Floor drying
The screed drying function allows fresh screed on
underfloor heating to be dried in accordance with
the screed manufacturer's instructions. All mixed
heating circuits are heated up equally.
Menu: Floor drying
•
Cancel floor drying
: If the screed drying func-
tion is activated, the function can be switched
off with
Yes
.
•
Maximum CH flow temperature
: Enter the
maximum flow temperature (1) for the screed
drying function here.
•
Maintain max CH flow temp for
: Enter the
timescale (2) here of when the maximum flow
temperature should be maintained.
•
Total floor drying time
:
–
The minimum total duration (3) is automat-
ically calculated by the heating controller.
This is based on a rise of flow temperature
of a maximum 10 K( °C) per day.
–
A higher value must be entered for the
whole duration (3) if the screed cannot
bear this increase. This produces a corre-
sponding reduction in the daily increase.
–
The first stage and the last stage of the
flow temperature is 25 °C (fixed value).
Example:
Maximum flow temperature (1) = 50 °C
Duration of maximum flow temperature (2) = 7
days
Max. increase/decrease in temperature per day
= 5 K
Total duration of screed drying (3) = 17 days
•
Start date
: Enter the start date of the screed
drying here.
•
Start time
: Enter the start time of the screed
drying here.
Fig. 25
1d
1 day
1
Maximum flow temperature
2
Duration of max. flow temperature
3
Total duration of screed drying
4
Start date and start time
t
time
VL
Flow temperature
For menu structure and adjustment range
Æ
page 55.
Warning:
Risk of damaging or de-
stroying the screed.
B
With multi-circuit systems this
function can be used in combi-
nation with a mixed heating cir-
cuit.
B
Program screed drying function
in accordance with screed man-
ufacturer's instructions.
B
In spite of the screed drying
function, visit the system daily
and make the prescribed re-
ports.
DHW heating is not possible from
programming to completing the
screed drying function.
2
d
50
°
C
25
°
C
–
(
)
5
K
------------------------------------- 7
+
×
d
17
d
=
25
35
45
VL
C
1d
1d
1d
1d
t
2
1
3
6 720 613 058-06.1R
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