47
Plug
Sensor
Type
aVG
KM BUS (wires interchangeable)
Use the KM BUS distributor (accessories) if sev-
eral devices are connected.
KM BUS subscriber (examples):
■ Extension kit for one heating circuit with mixer
M2/HC2
■ Remote control for Vitotrol 200A or
Vitotrol 300B (set the heating circuit assign-
ment at the remote control)
■ Extension EA1, extension AM1
■ Vitocom communication interface
sVA
Modbus 2 (wires
not
interchangeable)
Connection for 1-phase or 3-phase electricity
meter
J3
Jumper for terminator Modbus 2
Terminator enabled (delivered condition)
Terminator disabled
J4
Jumper for setting master/slave Modbus 2
Heat pump control unit is slave
Heat pump control unit is master (delivered
condition)
X18
Modbus 1
Connection for Vitovent 300-F
X24
Connection for LON communication module (see
LON communication module installation instruc-
tions)
X31
Coding card slot
Swimming pool heating
Note
■ Swimming pool heating is controlled
via extension EA1 with KM BUS.
■ Make connections to extension EA1
only according to the following dia-
gram.
■ A filter circuit pump cannot be control-
led via the heat pump control unit.
Installation sequence
Electrical connections
(cont.)
5782 201 GB
Installation
Содержание AWT-AC 221.A04
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Страница 88: ...88 Removing cover from programming unit if necessary 5 4 4x Troubleshooting Repairs cont 5782 201 GB ...
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