Controller And Sensor Pcb (Sensors) - Viessmann Vitocal 300-G Series Installation And Service Instructions Manual

Electrical connection

Controller and sensor PCB (sensors)

Set the required parameters during commissioning:
See page 50 onwards.
Plug Sensor
F0.1/F0.2 Outside temperature sensor
F0.2/F0.3 Radio clock receiver (on site)
F4 Buffer temperature sensor
F6 Top cylinder temperature sensor
F7 Bottom cylinder temperature sensor
F11 Contact humidistat 24 V
F12 Flow temperature sensor, heating circuit with mixer M2/HC2
F13 System flow temperature sensor with sensor well (downstream of the heating
water buffer cylinder and external heat generator)
F14 Flow temperature sensor, cooling circuit: Heating circuit without mixer
A1/HC1 or separate cooling circuit SKK
F16 Room temperature sensor, cooling circuit
Required for separate cooling circuit SKK
■
Recommended for heating/cooling circuit without mixer A1/HC1
■
F20 Boiler water temperature sensor, external heat generator
F27 Flow temperature sensor, secondary circuit for heat pump stage 2
?B
Return temperature sensor, secondary circuit for heat pump stage 2 (if instal-
aJB
(X25.13/ led)
X25.14)
KM-BUS (wires interchangeable)
aVG
Use the KM-BUS distributor (accessories) if several devices are connected.
KM-BUS subscribers (examples):
Mixer extension kit M3/HC3
■
Remote control: Set the heating circuit allocation on the remote control.
■
EA1 extension, AM1 extension
■
Modbus 2 (wires not interchangeable)
sVA
Connection for energy meter of photovoltaic system
J3 Jumper for terminator, Modbus 2
Terminator active (delivered condition)
Terminator not active
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
Viessmann appliances, e.g. ventilation unit Vitovent 300-F
Note
If further Viessmann appliances are to be connected to Modbus 1, plug in the
Modbus distributor (accessories): See "Modbus distributor" installation in-
structions.
X24 Connection, LON communication module (accessories): See installation in-
structions "LON communication module".
X31 Coding card slot
(cont.)
Installation sequence
Type
NTC 10 k
Ω
DCF
NTC 10 k
Ω
NTC 10 k
Ω
NTC 10 k
Ω
―
NTC 10 k
Ω
NTC 10 k
Ω
NTC 10 k
Ω
NTC 10 k
Ω
NTC 10 k
Ω
Pt500A
(PTC)
Pt500A
(PTC)
31