Electrical connection
NOTE
All electrical connections must be carried out by
an authorised electrician.
Electrical installation and wiring must be carried
out in accordance with the stipulations in force.
The climate unit must not be powered when in-
stalling ELK 26.
ELK 26 must be installed on terminal block X1 via a circuit
breaker with a minimum breaking gap of 3 mm.
ELK 26 contains temperature limiter and contactors for ex-
ternal control of the three power stages 4, 7 and 10 kW.
The electrical circuit diagram is at the end of this Installer
handbook.
ELECTRICAL CONNECTION VERSIONS F1345
F1345 has different electrical connection versions depending
on when the heat pump was manufactured. To check which
electrical connection applies to your F1345, check the des-
ignation "2.0" visible above the right hand side of the termin-
al block as illustrated.
LEK
F1345 2.0 / F1355
Terminal block X1 on ELK 26 is connected to terminal blocks
X5, X7 and X8 on the input board AA101 in the heat pump
as illustrated.
X5
X7
X8
L1
-X3
-X4
1 2 3
-AA101
-AA101
N
L2 L3
1 2 3 4 5 6 7 8 9
-X5
1 2 3 4 5 6 7 8 9
-X6
-X7
-X8
-X9
-FC1
-AA101
-AA101
-AA101
-AA101
-AA101
1 2 3 4
1 2 3
1 2 3
1 2 3 4 5
-X10
A B
A B
-AA3-X7
K1
-AA101
K2 K3
C
C NO NC
K4
C NO NC
QN10
GP16
L N
L L L N N N
L
N
L N PE
PE
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
12V
A B
13 14
-BE1
-GP16
-BE2
-BE3
AUX 4
AUX 5
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
-AA3
-X6
0-10V
-EP14 -EP15
-BF1
16 17 18
2
-AA3
-X22
-AA3
-AA3
-X20
-X21
1 3 1 2 3
-X23
-BT1
-BT50
-BT25
-BT6
AUX 1
AUX 2
AUX 3
-BT7
-BT71
2.0
WITHOUT THERMOSTAT, TWO ACTIVE POWER
STEPS
26 kW electric heater step active.
L2 L3 PE
L1
X1
F1345 2.0
ELK 26
1
2
3
4
5
6
1
2
3
4
X5
X7
PE
1
2
L
N
3
4
X2
Heat pump
ELK 26
WITH THERMOSTAT, TWO ACTIVE POWER
STEPS
26 kW electric heater step active.
15 kW electric heater step active in emergency mode.
L2 L3 PE
L1
X1
PE
1
2
L
N
3
4
X2
F1345 2.0
ELK 26
1
2
3
4
5
6
1
2
3
4
1
2
3
X5
X8
X7
Heat pump
ELK 26
19
NIBE ELK 26 | GB