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Electrical installation
Installer reference guide
137
EPRA14~18D + ETSH/X(B)16P30+50E
Daikin Altherma 3 H HT ECH₂O
4P679467-1B – 2022.09
[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 high voltage contacts is as follows:
S4S
9
10
X 5M
1
X 5M
1
7
8
K2A
K1A
5
6
3
4
K1A
L
N
L
N
STEP 3
a
b
c
d
e
f
STEP 1
STEP 2
A1
A2
25
24
25
23
X1 M
2
K2A
A1
A2
2
1
STEP 1
Smart Grid relay kit installation
STEP 2
Low voltage connections
STEP 3
High voltage connections
1
High voltage Smart Grid contact 1
2
High voltage Smart Grid contact 2
a, b
Coil sides of relays
c, d
Contact sides of relays
e
Jumper (factory-mounted). If you also connect a safety thermostat (Q4L), replace
the jumper with the safety thermostat wires.
f
Smart Grid pulse meter
1
Install the switch box metal insert.
1
2
3
2
Loosen the cables connected to the terminal of the Smart Grid relay kit
(EKRELSG) and remove the terminal.
Summary of Contents for Altherma 3 H HT ETSX16E7
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