Viessmann Vitocal 300-G Pro BW 302.D090, Installation And Service Instructions For Contractors

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Sensors to be connected on site
Plug
Sensor Type
F0.1/F0.2 Outside temperature sensor NTC 10 kΩ
F0.2/F0.3 Radio clock receiver (accessories) DCF
F4 Buffer temperature sensor, top NTC 10 kΩ
F6 Cylinder temperature sensor, top NTC 10 kΩ
F7 Cylinder temperature sensor, bottom NTC 10 kΩ
F11 Contact humidistat 24 V
– ―
F12 Flow temperature sensor, heating circuit with mixer (M2/HC2) NTC 10 kΩ
F13 System flow temperature sensor (downstream of heating water buffer cylin-
der) NTC 10 kΩ
F14 Flow temperature sensor, cooling circuit (heating/cooling circuit without mix-
er A1/HC1 or separate cooling circuit SKK) NTC 10 kΩ
F16 Room temperature sensor, separate cooling circuit NTC 10 kΩ
F17 Never connect anything here.
F20 Boiler water temperature sensor, external heat generator NTC 10 kΩ
F26 Buffer temperature sensor, cooling NTC 10 kΩ
Sensors connected at the factory (plug X25)
Plug
Sensor Type
X25.1/X25.2 Flow temperature sensor, primary circuit Pt500A (PTC)
X25.3/X25.4 Return temperature sensor, primary circuit Pt500A (PTC)
X25.9/X25.10 Flow temperature sensor, secondary circuit Pt500A (PTC)
X25.11/X25.12 Return temperature sensor, secondary circuit Pt500A (PTC)
Plug Connection
aVG
KM-BUS
Connection of components on site (cores interchangeable). If more than one of the following
devices are to be connected, use a KM-BUS distributor (accessories).
■
Extension kit, mixer for heating circuit with mixer (M3/HC3).
■
Remote control Vitotrol 200-A or Vitotrol 300-B (set the heating circuit assignment at the re-
mote control)
■
EA1 extension, AM1 extension
■
Vitocom 100 communications interface
■
Vitosolic 100/200 solar control units
X24 Connection, LON communication module (plug in on site, see LON communication module in-
stallation instructions)
X31 Coding card slot
Swimming pool heating
Note
■
Swimming pool heating is controlled via EA1 exten-
sion with KM-BUS.
■
Make connections to EA1 extension only in accord-
ance with Fig. 33.
■
A filter circuit pump cannot be controlled via the heat
pump control unit.
Installation sequence
Electrical connections
(cont.)
5838144
Installation