Internal electrical connection Vallox 245 MV VKL

CodeDescription
AMotherboard
B

  1. Extract air fan tacho (WT)

  2. GND (GN)

  3. Extract air fan PWM (YE)

  4. Supply air fan tacho (WT)

  5. GND (GN)

  6. Supply air fan PWM (YE)

C

  1. Extract air

  2. Outdoor air

  3. Supply air

  4. Exhaust air

  5. Supply air from the cell

DLAN

CodeDescription
MB_AExternal Modbus A signal
MB_BExternal Modbus B signal
+24V+24V voltage (DC)
GNDDigital and analog ground potential
RS_ALocal hardware Modbus A signal
RS_BLocal hardware Modbus B signal
NTCExternal temperature sensor connector
D/I1Digital input 1
D/I2Digital input 2
11V111.1 V operating voltage
AN/IAnalog input 0-10VDC
RM/I24V relay input
RM/O24V relay output
VLiquid radiator actuator
SSupply air fan
PExtract air fan
MDamper actuator CM230-R
SSSafety switch
CHeating resistor relay
AHSPost-heating control
S/EFan balance adjustment
RH%Internal humidity sensor
R1Additional heating radiator with 90°C and 130°C overheating protection

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