The Mitsubishi SEZ‑AD12NL is a 11,500 slim ducted indoor unit offering quiet, efficient heating and cooling. Ideal for tight spaces, it supports flexible ducting, smart controls, and pairs with Mitsubishi outdoor units for discreet, reliable comfort.

Unit Type: Indoor Unit
Product Line: M-Series AD
Operating Mode: Cooling & Heating
Number of Zones: Multi
System Capacity: 11,500 BTU
Line Set Size: 1/4" x 3/8"
WiFi Enabled: Yes with Comfort App
WiFi Built In: Yes

Indoor Unit SEZ-AD12NL

Cooling Capacity up to 11,500 BTU
Heating Capacity up to 13,600 BTU
Room Cooling/Heating Capacity up to 500 sq ft

GENERAL FEATURES
• Built-in condensate lift mechanism
• Concealed horizontal-ducted unit: Concealed horizontal-ducted unit for
applications with short duct runs
• Multi-zone: A multi-zone unit provides the temperature management of
multiple zones within a building.
• Multiple control options, including the comfort app for remote access, third-
party interfaces, and both wired and wireless controllers
• Quiet operation: Quiet operation units are as quiet as a typical
conversation, and most indoor units are whisper quiet.
• Ultra-thin body: 7-7/8” high

Airflow Cooling CFM, Dry: 247-317-388
Airflow Heating CFM, Dry: 247-317-388
Noise Level dB(A), Cooling: 23-28-33
Noise Level dB(A), Heating: 23-28-33
Size W x D x H: 39" x 27-9/16" x 7-7/8"
Weight: 50 lbs