6 Electrical installation
Installation manual
30
ELSH/X(B)12P30+50E
Daikin Altherma 3 R MT ECH
₂
O
4P708484-1 – 2023.03
[9.8.1]=3 (
Benefit kWh power supply
=
Safety
thermostat
)
1
Open the following (see
"4.2.1 To open the indoor unit"
13]):
1
User interface panel
1
3
4
2
2
Switch box
3
Switch box cover
4
Top cover
2
Connect the safety thermostat (normally closed) cable to the
appropriate terminals as shown in the illustration below.
Note:
The jumper wire (factory-mounted) must be removed from the
respective terminals.
3
Fix the cable with cable ties to the cable tie mountings. General
information, see
"6.3.1 To connect the electrical wiring to the
22].
NOTICE
Make sure to select and install the safety thermostat
according to the applicable legislation.
In any case, to prevent unnecessary tripping of the safety
thermostat, we recommend the following:
▪ The safety thermostat is automatically resettable.
▪ The safety thermostat has a maximum temperature
variation rate of 2°C/min.
▪ There is a minimum distance of 2 m between the safety
thermostat and the 3‑way valve.
NOTICE
Error.
If you remove the jumper (open circuit) but do NOT
connect the safety thermostat, stop error 8H-03 will occur.
INFORMATION
ALWAYS configure the safety thermostat after it is
installed. Without configuration, the unit will ignore the
safety thermostat contact.
6.3.13
To connect a Smart Grid
This topic describes 2 possible ways to connect the indoor unit to a
Smart Grid:
▪ In case of low voltage Smart Grid contacts
▪ In case of high voltage Smart Grid contacts. This requires the
installation of the Smart Grid relay kit (EKRELSG).
The 2 incoming Smart Grid contacts can activate the following Smart
Grid modes:
Smart Grid contact
Smart Grid operation mode
1
2
0
0
Free running
0
1
Forced off
1
0
Recommended on
1
1
Forced on
The use of a Smart Grid pulse meter is not mandatory:
If Smart Grid pulse meter is… Then [9.8.8]
Limit setting kW
is…
Used
([9.A.2]
Electricity meter 2
≠
None
)
Not applicable
Not used
([9.A.2]
Electricity meter 2
=
None
)
Applicable
In case of low voltage Smart Grid contacts
Wires (Smart Grid pulse meter): 0.5 mm²
Wires (low voltage Smart Grid contacts): 0.5 mm²
[9.8.4]=3 (
Benefit kWh power supply
=
Smart grid
)
[9.8.5]
Smart grid operation mode
[9.8.6]
Allow electrical heaters
[9.8.7]
Enable room buffering
[9.8.8]
Limit setting kW
The wiring of the Smart Grid in case of low voltage contacts is as
follows:
8
7
S11S
6
5
S S
10
4
3
X 5M
1
S S
4
10
9
a
2
1
a
Jumper (factory-mounted). If you also connect a safety
thermostat (Q4L), replace the jumper with the safety
thermostat wires.
S4S
Smart Grid pulse meter
1
/S10S
Low voltage Smart Grid contact 1
2
/S11S
Low voltage Smart Grid contact 2
1
Connect the wiring as follows:
