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

Installation sequence
Electrical connections, heat pump controller

Controller and sensor PCB (sensors)

Set the required parameters during commissioning:
see page 55 onwards.
Plug Sensor/component
F0.1/F0.2 Outside temperature sensor
F0.2/F0.3 Radio clock receiver (accessories)
F4 Buffer temperature sensor
F6 Cylinder temperature sensor, top
(X25.5/X25.6)
F7 Cylinder temperature sensor, bottom
(X25.7/X25.8)
F8 Secondary circuit flow temperature sensor
(X25.9/X25.10)
F11 Contact humidistat 24 V
Note
If a 230 V~ contact humidistat (connection to X3.8/X3.9) is used for cooling,
insert a jumper, otherwise the heat pump will not start (message "CA Pro-
tectn device primry").
F12 Flow temperature sensor, heating circuit with mixer M2/HC2
F13 Flow temperature sensor, system (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
F26 Buffer temperature sensor, cooling
aVG KM-BUS (wires interchangeable)
Use the KM-BUS distributor (accessories) if several devices are connected.
KM-BUS subscriber (examples):
Mixer extension kit for heating circuit M3/HC3
■
Vitotrol 200-A or Vitotrol 300 remote control unit: Set heating circuit assign-
■
ment at the remote control.
EA1 extension, AM1 extension
■
Communication interface Vitocom 100, type GSM2
■
Modbus 2 (wires not interchangeable)
sVA
Connection for photovoltaic system electricity meter
PWM signal, secondary pump
a:DB
PWM signal, cylinder loading pump
a:DC
J3 Jumper for terminator Modbus 2
Terminator enabled (delivered condition)
Terminator disabled
J4 Jumper for setting master/slave Modbus 2
Heat pump controller is slave.
Heat pump controller is master (delivered condition).
38
(cont.)
–
Type
NTC 10 k
Ω
DCF
NTC 10 k
Ω
NTC 10 k
Ω
NTC 10 k
Ω
Pt500A
(PTC)
—
NTC 10 k
Ω
NTC 10 k
Ω
NTC 10 k
Ω
NTC 10 k
Ω
NTC 10 k
Ω
NTC 10 k
Ω
—
—
—
—
—
—