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Application guidelines
Installer reference guide
39
EBLA09~16D + EDLA09~16D
Daikin Altherma 3 M
4P620241-1B – 2022.05
▪
The user interface connected to the outdoor unit decides the space operation
mode. Mind that the operation mode on each room thermostat must be set to
match the outdoor unit.
▪
The room thermostats are connected to the shut-off valves, and do NOT have to
be connected to the outdoor unit. The outdoor unit will supply leaving water all
the time, with the possibility to program a leaving water schedule.
Configuration
Setting
Value
Unit temperature control:
▪
#: [2.9]
▪
Code: [C-07]
0 (
Leaving water
): Unit operation is
decided based on the leaving water
temperature.
Number of water temperature zones:
▪
#: [4.4]
▪
Code: [7-02]
0 (
Single zone
): Main
Benefits
Compared with underfloor heating for one room:
▪
Comfort.
You can set the desired room temperature, including schedules, for
each room via the room thermostats.
Radiators – Multiple external room thermostats
Setup
M1
M2
C
B
b
c
b
d
a
A
230
V AC
230
V AC
A
Main leaving water temperature zone
B
Room 1
C
Room 2
a
User interface (delivered as accessory)
b
External room thermostat
c
Bypass valve
d
Relay
▪
For more information about connecting the electrical wiring to the unit, see
"9.2 Connections to the outdoor unit"
▪
For each room, a shut-off valve (field supplied) is installed to avoid leaving water
supply when there is no heating or cooling demand.
▪
A bypass valve must be installed to make water recirculation possible when all
shut-off valves are closed. To guarantee reliable operation, provide a minimum
water flow as described in table "To check the water volume and flow rate" in
