Internal electrical connection Vallox 51K MV

AMotherboard 11V111.1 V operating voltage
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)
 AN/IAnalog input 0–10 VDC
C
  1. Extract air
  2. Outdoor air
  3. Supply Air
  4. Exhaust air
  5. Supply air from the HR cell
 RM/I24 V relay input
DLAN RM/O24 V relay output
MB_AExternal Modbus A signal TSupply air fan
MB_BExternal Modbus B signal PExtract air fan
+24V+24V voltage (DC) MDamper motor
GNDDigital and analog ground potential S/EFan balance adjustment
RS_ALocal hardware Modbus A signal AHSPost-heating control
RS_BLocal hardware Modbus B signal %RHInternal humidity sensor
NTCExternal temperature sensor connector%RH CO2Internal humidity and carbon dioxide sensor
D/l1Digital input 1 R1Post-heating resistor with 90°C and 130°C overheating protection
D/l2Digital input 2
Table 1. Cable colours
CodeColourCodeColour
BKBlackGNGreen
BUBlueRDRed
BNBrownYEYellow
WTWhiteYEGNYellow-green