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ACiQ 18,000 BTU Quiet Comfort Concealed Duct Mini Split Air Handler  (R454B) - ACIQ-18CD-HH-MC

Summary

The ACiQ Concealed Duct air handler provides all the advantages of a mini split system without any visible indoor units. This powerful 18,000 BTU (1.5 ton) solution can be hidden above ceilings, below floors, in closets, or behind soffits, with conditioned air delivered through standard ductwork to registers in your desired locations. Perfect for new construction or additions, this system offers whisper-quiet operation and efficient heating/cooling capacity for medium-sized rooms.

The simple design features return air intake at the rear and conditioned air supply at the front via a nearly silent squirrel cage fan. With support for up to 4 flex duct runs, this unit is ideal for distributing air to multiple rooms while maintaining a clean, unobtrusive appearance.

Key Features:

• 
  Completely Concealed Installation: No visible indoor units


• 
  18,000 BTU Capacity: 1.5-ton heating and cooling


• 
  Hyper Heat Technology: Efficient performance in cold climates


• 
  Flexible Placement Options: Install above ceilings, below floors, or in closets


• 
  Ducted Air Distribution: Up to 4 flex duct runs supported


• 
  Ultra-Quiet Operation: As low as 28 dB(A)


• 
  Wall-Mounted Thermostat Included: Easy temperature control


• 
  Built-In Condensate Pump: Includes factory-installed drainage solution


• 
  Multiple Operating Modes: Cool, Heat, Dry, and Fan


• 
  R454B Refrigerant: Next-generation, lower GWP refrigerant

Important

Professional installation required for warranty validation. Registration must be completed within 60 days of installation at ACiQ.com. Installation requires additional ductwork components (flex duct, registers, plenums) not included. This system uses R454B refrigerant.

What\'s Included

• 
  Concealed Duct Air Handler: ACIQ-18CD-HH-MC


• Wall-Mounted Thermostat


• Wireless Remote Control


• Installation Manual


• User\'s Manual


• Manufacturer Warranty

Technical Specifications

Warranty

• 
  12 year compressor limited warranty (with online registration)


• 
  7 year parts limited warranty (with online registration and professional installation)


• 1 year thermostat/remote warranty

Installation Considerations

• Requires professional installation with ductwork components


• Ideal for new construction or major renovations


• Flexible placement options (ceilings, floors, closets, soffits)


• Supports up to 4 flex duct runs for air distribution


• PVC drain system required beyond built-in pump\'s 14\" lift capacity


• 1/4\" liquid line and 1/2\" suction line connections


• 15A circuit breaker required


• Ductboard or plenum fabrication needed for installation


• Wider 39.37\" width requires adequate installation space

Performance Features

• Multiple operating modes: Cool, Heat, Dry, Fan


• Auto-restart after power failure


• Precise temperature control


• Energy efficient operation


• Self-diagnosis system with error codes


• 24-hour timer function


• Quiet comfort operation (28 dB minimum)


• Hyper Heat technology for cold climate performance


• Higher 706.3 CFM airflow for medium-sized rooms

Manuals & Downloads

• 
  Submittal (PDF)


• 
  Installation Manual (PDF)


• 
  Service Manual (PDF)


• 
  Owner\'s Manual (PDF)


• 
  Remote Controller Manual (PDF)


• Warranty Information

Safety Information

PROPOSITION 65 WARNING: This product can expose you to chemicals including lead and copper, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.