Viessmann VITOCAL 350-A Installation And Service Instructions Manual page 61

Electrical connections: Heat pump control unit
Plug Sensors/terminals
F13 System flow temperature sensor (with sensor well, downstream of
the heating water buffer cylinder)
F20 Boiler water temperature sensor, external heat generator
(X6.8/X6.9)
KM-BUS
aVG
Wires interchangeable; for several appliances, use the KM-BUS
distributor (accessories).
■
■
■
■
■
X5/X6 Terminals for connecting lead (LV) to the heat pump control panel:
See page 48)
X24 Connection for LON communication module: See LON communi-
cation module installation instructions
X31 Slot for coding card: See page 51)
Swimming pool heating
Note
Swimming pool heating is switched via external H1
■
extension with KM-BUS.
Make connections at external H1 extension only in
■
accordance with the following diagram.
■ Connect only circulation pump for swimming pool
heating to plug according to the following dia-
F gÖ
gram. A filter circuit pump must be connected sepa-
rately.
■ If the components for swimming pool heating are
connected to the external H1 extension, no other
external function (e.g. operating status changeover)
can be connected.
Extension kit for heating circuit with mixer M3
Vitotrol 200-A remote control (set the heating circuit assignment
at the remote control)
External H1 extension
Vitocom 100 communication interface
Vitosolic 100/200 solar control units
(cont.)
Installation sequence
Type
(PTC)
Pt500
Pt500
61