The Lennox 27K37 (MDDD009S6-1P) Mini-Split High Static Ducted Air Handler is a compact, concealed indoor unit designed for applications that require ducted air distribution with higher external static pressure. Rated at 0.75 ton (9,000 BTU), this unit is ideal for residential and light commercial installations where space limitations or zoning requirements make traditional air handlers impractical.

This high static ducted air handler is engineered to deliver consistent airflow through longer or more restrictive duct runs, making it well suited for ceiling, attic, or mechanical room installations. When paired with a compatible Lennox mini-split outdoor heat pump or condenser, it provides efficient cooling and heating performance with quiet operation and precise temperature control.

The MDDD009S6-1P features a slim-profile cabinet for flexible installation, supports modern mini-split control options, and is designed to meet current efficiency and refrigerant standards. Its concealed design allows for a clean interior appearance while maintaining dependable comfort across multiple supply outlets.

 

Product Overview:

• High static pressure mini-split ducted indoor air handler
• Concealed installation for ducted air distribution
• Designed for residential and light commercial HVAC applications
• Provides cooling and heating when matched with a compatible outdoor unit
• Compact design for tight spaces such as ceilings or attics
• Quiet operation with consistent airflow performance

 

Specifications:

Brand: Lennox
Catalog Number: 27K37
Model / Part Number: MDDD009S6-1P
Unit Type: Mini-Split High Static Ducted Air Handler
Cooling Capacity: 0.75 Ton (9,000 BTU)
Electrical Rating: 208–230 VAC
Phase: 1 Phase
Frequency: 60 Hz
Application: Ducted mini-split indoor unit
Installation Type: Concealed / Ducted
Compatibility: Requires matching Lennox mini-split outdoor unit