Daikin Altherma 3 GEO, Installer'S Reference Manual

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11 | Commissioning
Installer reference guide
206
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598592-1A – 2019.12
Current sensor of which value changed Action to take
Backup heater
phase 1
Backup heater
phase 2
First switch
terminals…
Then switch
terminals…
CT1
CT2 Do nothing —
CT3 15 and 16 —
CT2
CT1 14 and 15 —
CT3 14 and 15 14 and 16
CT3
CT1 14 and 15 14 and 16
CT2 14 and 16 —
11.4.5 Underfloor heating screed dryout
The underfloor heating (UFH) screed dryout function is used for drying out the
screed of an underfloor heating system during the construction of the building.
Conditions: Make sure all operation is disabled. Go to [C]: Operation and turn off
Room , Space heating/cooling and Tank operation.
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.
NOTICE
The installer is responsible for:
▪
contacting the screed manufacturer for the maximum allowed water
temperature, to avoid cracking the screed,
▪
programming the underfloor heating screed dryout schedule according to the
initial heating instructions of the screed manufacturer,
▪
checking the proper functioning of the setup on a regular basis,
▪
performing the correct program complying with the type of the used screed.
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 36 hours after the first power-on.
If the screed dryout still needs to be performed after the first 36 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.
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: