Daikin Altherma 3 H HT F Installer's Reference Manual page 212

10 | Configuration
Installer reference guide
212
Smart Grid operation modes
The 2 incoming Smart Grid contacts (see
can activate the following Smart Grid modes:
Smart Grid contact
1
0
0
1
1
Free running:
The Smart Grid function is NOT active.
Forced off:
▪ The unit forces OFF the compressor and the backup heater.
▪ The protective functions (water pipe freeze prevention, drain prevention, room
frost protection, tank disinfection) and defrost are NOT overruled (capacity will
not be limited for these functions)
Also see "Protective functions" [
Recommended on:
▪ In case the space heating/cooling request is OFF and the tank temperature
setpoint is reached, the unit can choose to buffer energy from the photovoltaic
panels in the room (only in case of room thermostat control) or in the DHW tank
instead of putting the photovoltaic panel energy on the grid.
In case of room buffering, the room will heat up or cool down to the comfort
setpoint. In case of tank buffering, the tank will heat up to the maximum tank
temperature.
▪ The goal is to buffer the energy from the photovoltaic panels. Therefore, the
capacity of the unit is limited to what the photovoltaic panels are providing:
If Smart Grid pulse meter is...
Available
Not available
▪ The protective functions (water pipe freeze prevention, drain prevention, room
frost protection, tank disinfection) and defrost are NOT overruled (capacity will
not be limited for these functions)
Also see "Protective functions" [
Forced on:
Similar to Recommended on, but there is no capacity limitation. The goal is NOT to
use the grid as much as possible.
Emergency mode. In case emergency mode is active, buffering with electrical
heater is NOT possible in Forced on and Recommended on operation modes.
"9.3.11 To connect a Smart
[9.8.5] Smart grid operation
2
0 Free running
1 Forced off
0 Recommended on
1 Forced on
4
220].
Then the limit is...
Decided by the unit based on the input
of the Smart Grid pulse meter.
Decided by [9.8.8] Limit setting
kW
4
220].
4
Grid" [ 131])
mode
EPRA14~18D + ETVH16SU18+23E
Daikin Altherma 3 H HT F
4P644738-1A – 2022.03