De Dietrich AD252 Montageanleitung Seite 8

English
1 Fitting the boiler's radio module
2
1
2 Connecting the boiler's radio module
Switch off the mains supply to the boiler before carrying
out any work. Electrical connections must be made by a
qualified professional.
It is possible to connect a boiler radio module to each control panel.
Boilers installed in cascade: One boiler radio module per boiler is
necessary.
1. Accessing the boiler PCB SCU.
Refer to the installation and maintenance instructions of the
boiler (Electrical connections).
8
The boiler's radio module must be fixed to the wall close to the boiler
to enable connection to the latter's control panel. Use the 4 screws +
4 plugs provided.
Do not mount the boiler's radio module close to metal walls
or partitions.
Do not mount the boiler's radio module inside the boiler.
3
C002446-B
2. Connecting the boiler's radio module to the terminal block
corresponding to a circuit's room sensor (S.AMB A, S.AMB B,
S.AMB C).
AD252
0-10V S AMB C S AMB B S AMB A
+ - 4 3 2 1 2 1 2 1 2 1
S SYST + TA - S ECS S EXT S DEP C S DEP B
2 1 2 1 2 1 2 1 2 1 2 1
03/06/2009 - 300020522-001-B
SCU
C002445-A