Nibe SMO 40 - Page 23

COMMUNICATION WITH HEAT PUMP
Connect the heat pump (EB101) with a screened three
core cable to terminal block X4:1 (A), X4:2 (B) and X4:3
(GND) on the accessory board (AA5) as illustrated.
If several heat pumps are to be connected to SMO 40
these must be connected in cascade as illustrated.
Caution
Up to 8 heat pumps can be controlled by
SMO 40.
Caution
It is possible to combine various NIBE air/water
heat pumps, of different sizes and models, with
each other, effective from software version
8319.
With an earlier software version (than version
8319), an air/water heat pump with an inverter-
controlled compressor can only be combined
with other inverter-controlled heat pumps of
the same model.
Connecting to the heat pump
L N 1 1 0 2 3 4PE
1 2 3 4
LEK
ON
1 2 3 4 5 6 7 8
-X9
-X2
24
20
21
22
23
15
16
17
18
19
10
11
12
13
14
5
6
7
8
9
1
1
NLPEPE
12345678
2
1 2
3 4 5 6 7 8 9
2
3
4
-X8
-X4
-X10
-X1
AA5-X4
23Chapter 5 | Electrical connectionsNIBE SMO 40