Nibe F2040 - Page 31

F2040-12
LEK
Heating cable (EB14)
Secure the heating
cable (EB14) here
using two cable ties.
F2040-16
LEK
Heating cable (EB14)
Secure the heating cable
(EB14) here using two cable
ties.
Ambient temperature sensor
An ambient temperature sensor (Tho-A) is located on
the rear of F2040.
Communication
F2040 can communicate with NIBE indoor modules,
by connecting the indoor module to the terminal block
X4:1–3 according to the following image:
Innemodul
X4
F2040
GNDGND
B-B-
A+
15
14
13
A+
GND
B-
A+
AA3
1
2
3
4
5
6
ExternalF2040
X4
AA3
For connection of indoor module, see relevant manual
on www.nibe.eu.
Addressing via cascade connection
The communication address is selected for F2040 to
the control module on the communication board
(AA23-S3). Default has F2040 address 1. In a cascade
connection all F2040 must have a unique address. The
address is coded in binary.
S3:3S3:2S3:1Address
OFFOFFOFF1
OFFOFFOn2
OFFOnOFF3
OFFOnOn4
OnOFFOFF5
OnOFFOn6
OnOnOFF7
OnOnOn8
29Chapter 5 | Electrical connectionsNIBE™ F2040