Daikin ETBH16E9W Installer's Reference Manual page 223

Disable protections
Forced defrost
EPRA14~18D + ETBH/X16E
Daikin Altherma 3 H HT W
4P644736-1D – 2023.10
Defines whether the outdoor unit power supply can be interrupted (internally by
indoor unit control) during stand-still conditions (no space heating/cooling nor
domestic hot water demand). The final decision to allow power interruption of the
outdoor unit during standstill depends on the ambient temperature, compressor
conditions and minimum internal timers.
To enable the power saving function setting, [E‑08] needs to be enabled on the
user interface.
# Code
[9.F] [E‑08]
Protective functions
The unit is equipped with the following protective functions:
▪ Room antifrost [2-06]
▪ Water pipe freeze prevention [4-04]
▪ Tank disinfection [2-01]
INFORMATION
Protective functions – "Installer-on-site mode". The software is equipped with
protective functions, such as room antifrost. The unit automatically runs these
functions when necessary.
During installation or service this behaviour is undesired. Therefore, the protective
functions can be disabled:
▪
At first power-on: The protective functions are disabled by default. After 12
hours they will be automatically enabled.
▪
Afterwards: An installer can manually disable the protective functions by setting
[9.G]: Disable protections=Yes. After his work is done, he can enable the
protective functions by setting [9.G]: Disable protections=No.
# Code
[9.G] N/A
Forced defrost
Manually start a defrost operation. The forced defrost will only start when at least
the following conditions are fulfilled:
▪ Unit is in heating operation and has been running for a few minutes
▪ Outdoor ambient temperature is low enough
▪ Temperature at the outdoor unit heat exchanger coil is low enough
# Code
[9.H] N/A
Description
Power saving function for outdoor unit:
▪ 0: No
▪ 1: Yes
Description
Disable protections:
▪ 0: No
▪ 1: Yes
Description
Do you want to start a defrost operation?
▪ Back
▪ OK
10 Configuration
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Installer reference guide
223