To Connect A Smart Grid - Daikin ERGA04EAV37 Installer's Reference Manual

9 | Electrical installation

9.3.13 To connect a Smart Grid

Installer reference guide
140
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.
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
1
0
0
1
1
The use of a Smart Grid pulse meter is not mandatory:
If Smart Grid pulse meter is...
Used
([9.A.2] Electricity meter 2 ≠
None)
Not used
([9.A.2] Electricity meter 2 =
None)
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
Smart Grid operation mode
2
0 Free running
1 Forced off
0
Recommended on
1 Forced on
Then [9.8.8] Limit setting kW is...
Not applicable
Applicable
ERGA04~08EAV3+V3A+V37 + EHSH/X(B)04+08P30+50EF
Daikin Altherma 3 R ECH₂O
4P678716-1A – 2022.07