Space Requirements For The Air Conditioner; Installation - Samsung Electronics DVM Series Technical Manual

. Installation

1. Product

1-3. Space requirements for the air conditioner

(1) Indoor unit
1) 1-way cassette type
2) 4-way cassette type
3) Duct type (Low silhouette)
You must have 1/4" or more space between the ceiling and
the bottom of indoor unit. Otherwise, the noise from the
vibration of indoor unit may bother the user.
4