The figures are shown in this instruction may differ from yours depending on the model.
Indoor Unit
Air filter
Indoor Unit
4
E-
IDH1800E/IDH2400E/IDH3200E
DH18ZA1(A2)/DH24ZA1(A2)/DH32ZA1(A2)
Air
outlet
IDH4400G/DH44ZA1(A2)
Air
outlet
Air
inlet
Air
inlet