Roth BW/H Komfort HE, Руководство для специализированного ремесленника

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10.4 Screed drying
This function is used for time- and temperature-controlled screed drying in se-
lectable heating circuits.
Note:
The screed drying function is blocked against the chimney sweeper func-
tion. In order to activate the screed drying function, the chimney sweeper
function must be deactivated in all heating circuits.
The heating circuits can be selected in the Heating / Screed drying menu. At the
end of this menu, the function can be set to standby by using the “Activated” item.
If button
➅
is pressed and held down for at least 5 s, the screed drying programme
will start.
The message Screed drying is indicated on the display and the remaining time
will be indicated as a countdown (dd:hh). During this process, the directional pad
is fl ashing red.
If button
➅
is pressed again and held down for at least 5 s, the screed drying pro-
gramme will be aborted. For this reason, a security enquiry appears. If you wish to
interrupt the screed drying function, confi rm the security enquiry.
At the beginning of the screed drying function, the selected heating circuits are put
into operation for the adjusted rise time with the start temperature as the set
fl ow temperature. Afterwards, the set fl ow temperature increases in steps by the
adjustable rise value for the duration of the adjustable rise time until the holding
temperature is reached. After the holding time has elapsed, the set fl ow tempera-
ture is reduced in steps until the start temperature is reached again.
If the set fl ow temperature is not reached within 24 hours or after the rise time re-
spectively, or if it is constantly exceeded, the screed drying function will be aborted.
The heating circuit switches off and an error message is displayed. The directional
pad fl ashes red.
Error 1: fl ow sensor defective
Error 2: the fl ow temperature is higher than the set fl ow tempe 5 K for over 5 min
Error 3: the fl ow temperature is higher than the holding tempe rise value for over
30 min
Error 4: the fl ow temperature is higher than the set fl ow tempe rise value for over 2 h
Error 5: the fl ow temperature is lower than the set fl ow temperature - rise value for over a
rise time period
During screed drying of the heating circuits selected, the other heating circuits run
corresponding to their operating mode.