11 | Commissioning
Installer reference guide
202
ERGA04~08EAV3(A) + EHVZ04+08S18+23EA6V+9W
Daikin Altherma 3 R F
4P629093-1 – 2020.08
To stop an underfloor heating (UFH) screed dryout
U3-error
When the program is stopped by an error, an operation switch off, or a power
failure, the U3 error will be displayed on the user interface. To resolve the error
codes, see "14.4Solving problems based on error codes"[4217].
Stop UFH screed dryout
To manually stop underfloor heating screed dryout:
1 Go to [A.4.3]: Commissioning > UFH screed dryout —
2 Select Stop UFH screed dryout.
3 Select OK to confirm.
Result: The underfloor heating screed dryout is stopped.
Read out UFH screed dryout status
When the program is stopped due to an error, an operation switch-off, or a power
failure, you can read out the underfloor heating screed dryout status:
1 Go to [A.4.3]: Commissioning > UFH screed dryout >
Status
2 You can read out the value here: Stopped at + the step
where the underfloor screed dryout was stopped.
—
3 Modify and restart the execution of the program
(a)
. —
(a)
If the UFH screed dryout program was stopped due to a power failure and the power
resumes, the program will automatically restart the last implemented step.