Daikin ALTHERMA HT EKBUHAA6 V3, Service Manual

Page: 117 / 302

ESIE09-08A Field Setting
Test Operation 105
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[8-03] Quiet mode
The unit has a quiet mode functionality for which 3 levels can be selected:

[8-03] = 1 low noise level 1 (default)

[8-03] = 2 low noise level 2

[8-03] = 3 low noise level 3
Activating this quiet mode is done by pushing the QUIET MODE button on the remote controller or
through the schedule timer.

[8-04] Freeze-up prevention
The unit has a freeze-up prevention functionality for which 3 levels can be selected:

[8-04] = 0 prevention level 0 (default: no prevention)

[8-04] = 1 prevention level 1

[8-04] = 2 prevention level 2
The freeze-up prevention is only active when the unit is in thermo OFF condition. If prevention level
1 is enabled, the freeze-up prevention will start if the outdoor ambient temperature <4°C and if
leaving or return water temperature <7°C. For prevention level 2, the freeze-up prevention will start
as soon as the ambient temperature <4°C.
For both cases the pump will operate and if leaving or return water <5°C for 5 minutes the unit will
start up to prevent too low temperatures.
It is advised to enable freeze-up prevention if the indoor unit is located in a colder ambient room (e.g.
garage, ...) to prevent water freeze-up.