RELAY OUTPUT FOR EMERGENCY MODE
NOTE
Mark up any junction boxes with warnings for
external voltage.
When the switch (SF1) is in " " mode (emergency
mode) the following components are activated (if they
are connected).
• the circulation pumps (EB101-GP12 and EB102-GP12)
• external circulation pump (GP10)
• the potential free switching emergency mode relay
(K2).
Caution
External accessories are disconnected.
Caution
No hot water is produced when emergency
mode is activated.
The emergency mode relay can be used to activate ex-
ternal additional heat, an external thermostat must then
be connected to the control circuit to control the temper-
ature. Ensure that the heating medium circulates through
the external additional heating.
L N 1 1 0 2 3 4PE
1 2 3 4
LEK
1 0 432PE
SMO
E
xternt
A2
A1
N L
L N 1 1 0 2 3 4PE
1 2 3 4
LEK
If the relay is to be used for control voltage, bridge the
supply from terminal block X1:1 to X1:2 and connect
neutral and control voltage from the external additional
heat to X1:0 (N) and X1:4 (L).
EXTERNAL CIRCULATION PUMP
Connect the external circulation pump (GP10) to terminal
block X4:9 (PE), X4:10 (N) and X4:11 (230 V) on the base
board (AA2) as illustrated.
L N 1 1 0 2 3 4PE
1 2 3 4
LEK
SHUTTLE VALVE
SMO 40 can be supplemented with an external reversing
valve (QN10) for hot water control. (See page 63 for
accessory)
Hot water production can be selected in menu 5.2.4.
Connect the external reversing valve (QN10) as illus-
trated to terminal block X4:2 (N), X4:3 (control) and X4:4
(L) on the base board (AA2).
L N 1 1 0 2 3 4PE
1 2 3 4
LEK
NIBE UPLINK
Connect the network connected cable (straight, Cat.5e
UTP) with RJ45 contact (male) to contact AA4-X9 on the
display unit (as illustrated). Use the cable grommet (UB2)
in the control module for cable routing.
29Chapter 5 | Electrical connectionsNIBE SMO 40
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