ACCESSORIES WITH ACCESSORY BOARD
AA9
Connect accessory board AA9 in Modbus 40/ SMS 40/
RMU 40 to the indoor module’s terminal block X4:9-12
on the input board AA3. Use cable type LiYY, EKKX or
equivalent.
Refer to the accessory manual for further instructions.
Indoor module
AA3-X4
AA9-X1
Accessories
NIBE VVM 225Chapter 5 | Electrical connections34