15© Vallox Oy - All rights reservedMB_A External Modbus A signalMB_B External Modbus B signal+24V +24V voltage (DC)GND Digital and analog ground potentialRS_A Local hardware Modbus A signalRS_B Local hardware Modbus B signalNTC External temperature sensor connectorD/I1 Digital input 1D/I2 Digital input 211V1 11.1 V operating voltageAN/I Analog input 0-10VDCRM/I 24V relay inputRM/O 24V relay outputT Supply air fanP Extract air fanM Damper motorTK Safety switchAHS Post-heating controlS/E Fan balance adjustmentRH% Internal humidity sensorR1Post-heating radiator with90°C and130°C overheating protectionBK BlackBU BlueBN BrownWT WhiteGY GreyYE YellowYEGN Yellow-greenCABLE COLOURSA MotherboardB1. 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)C1. Extract air2. Outdoor air3. Supply air4. Exhaust air5. Supply air from the cellD LANINTERNAL ELECTRICAL CONNECTIONTKNTCGNDPTW T231YEGNYEGNBNBUBNBUYEGNYEGND/I27028600141113 ANRH%S/EAHSBNBUBNBNNLNLNLN230V 50Hz1 2 3 4 5 690°CTESTERM130°CT1 T2R1D/I1BNYEGNBUYEGNW TYEGN+11V1MB_BMB_A MB_AMB_B+24VRS_ARS_BGNDAN/IGND+24VRS_ARS_BGNDRM/IRM/O+24V+24V+24VRS_A+24VRS_ARS_BGNDRS_BGNDYEGNBUBUL AB C12345DTECHNICAL SPECIFICATIONS