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12
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Commissioning
To perform an underfloor heating screed dryout
Installer reference guide
192
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]=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.
NOTICE
To perform an underfloor heating screed dryout, room frost protection needs to be
disabled ([2‑06]=0). By default, it is enabled ([2‑06]=1). However, due to the
"installer-on-site" mode (see "Commissioning"), room frost protection will be
automatically disabled for 12 hours after the first power-on.
If the screed dryout still needs to be performed after the first 12 hours of power-on,
manually disable room frost protection by setting [2‑06] to "0", and KEEP it disabled
until the screed dryout has finished. Ignoring this notice will result in cracking of the
screed.
36h (2)
35°C (2)
4
level" [
106].
t
"To change
—
—
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620242-1 – 2020.06
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