Samsung CNH HDB Series Technical Data Book page 59

4. Dimensional Drawing
Wall Mounted Type
CNH18ADB (AC018BNADCH/AA), CNH24ADB (AC024BNADCH/AA)
Units : mm [inches]
215 [8-7/16]
1054.5 [41-1/2]
62.4 [2-7/16]
1054.5 [41-1/2]
631.5 [24-7/8]
175.6 [6-15/16] 64.0 [2-1/2] 64.0 [2-1/2] 84.0 [3-5/16]