Connection - Viessmann Vitotron 100 Series Installation And Operating Instructions Manual

Connection(only for type VMN3)
A
A
B
D
L N PE
D
To connect an appliance to the bus (computer), a
"point to point" connection topology must be used
according to the diagram below.
Connection to other appliances must be made with the
cable (UPT-Cat. 5e 4 × 2 24 AWG). It is not permissible
to connect system elements in a star topology.
B
E F
PE L N N L
L
o c
The control unit exchanges information about
operating parameters with the master appliance
(boiler). Configuration parameters are set in the
configuration menu.
C
To connect the control unit to the master appliance,
a unique identification number must be assigned
(see section 4.2 in configuration mode).
If several control units are working directly with the
boiler, each must have its own unique identification
number.
A jumper must be installed at the MA input. Opening the
input blocks heating processes, the valve remains closed.
This input can be used to block heating processes via
other appliances. Note: The MA input is isolated from the
power supply and can only be closed and opened.
The outside and room temperature sensors must
be connected to enable correct operation of the
module.
A Bus (computer)
B Circuit temperature sensor
C Master appliance or terminal
D Feed ~230 V
E Pump
F Valve
Installation sequence
17