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Commissioning
To program an underfloor heating screed dryout schedule
To perform an underfloor heating screed dryout
Installer reference guide
252
UFH screed dryout before or during installation of outdoor unit
The UFH screed dryout function can be executed without finishing the outdoor
installation. In this case, the backup heater will perform the screed dryout and
supply the leaving water without heat pump operation.
Duration and temperature
The installer can program up to 20 steps. For each step he needs to enter:
1 the duration in hours, up to 72 hours,
2 the desired leaving water temperature, up to 55°C.
Example:
T
24h (1)
25°C (1)
A1
T Desired leaving water temperature (15~55°C)
t Duration (1~72 h)
(1) Action step 1
(2) Action step 2
Steps
1 Set the user permission level to Installer. See
the user permission
2 Go to [A.4.2]: Commissioning > UFH screed dryout >
Program.
3 Program the schedule:
To add a new step, select the next empty line and change its
value. To delete a step and all steps below it, decrease the
duration to "–".
▪
Scroll through the schedule.
▪
Adjust the duration (between 1 and 72 hours) and
temperatures (between 15°C and 55°C).
4 Press the left dial to save the schedule.
INFORMATION
▪
If Emergency is set to Manual ([9.5.1]=0), and the unit is triggered to start
emergency operation, the user interface will ask confirmation before starting.
The underfloor heating screed dryout function is active even if the user does NOT
confirm emergency operation.
▪
During underfloor heating screed dryout, pump speed limitation [9‑0D] is NOT
applicable.
36h (2)
35°C (2)
4
level" [
148].
t
"To change
—
—
ERLA11~16D + EBVH16SU23D
Daikin Altherma 3 R F
4P655196-1A – 2022.05
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