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ACiQ 3.5 Ton Central Ducted Air Handler - R454B

ACiQ SKU: ACIQ-42-AHD
Price:
$1,310.00

Description

Large-Scale Comfort, Smart Efficiency: ACiQ 3.5 Ton Central Ducted Air Handler with Variable Speed & R454B Compatibility

Engineered for larger residential and light commercial spaces, the ACiQ-42-AHD 3.5 Ton Central Ducted Air Handler brings precision comfort and high efficiency together. With a variable speed DC blower and communicating technology, this unit works in tandem with your inverter condenser and thermostat to dynamically adjust BTU output. Designed for full R454B refrigerant compatibility and multi-position installation, it offers seamless integration into your ducted HVAC system while supporting optimal airflow and long-term energy savings.

 

Ideal For:

✔ Larger Homes or Open-Concept Spaces – Delivers consistent, quiet airflow for high-demand residential environments.

✔ Office Suites & Clinics – Efficient, quiet comfort for medium-to-large professional spaces.

✔ New Builds & Renovations – Perfect for flexible installs in horizontal or vertical ducted layouts.

✔ Manufactured or Modular Buildings – Smart, scalable HVAC component for larger mobile units or prefab construction.

 

Certifications & Safety Features:

  • Efficiency Ratings: Supports up to 18.8 SEER2, 11.0 EER2, and 9.7 HSPF2 (when paired with matching condenser)
  • Flexible Multi-Position Install: Suitable for upflow, downflow, or horizontal left/right applications
  • Eco-Conscious Refrigerant: Designed for full compatibility with R454B, a low-GWP alternative to traditional refrigerants
  • Intelligent Control Board: Built-in fault code display simplifies maintenance and diagnostics
  • Optional R4.2 Insulation: Fiberglass-free insulation reduces condensation and boosts thermal performance
  • Cold Climate Support: Electric heat kit compatibility ensures supplemental warmth in freezing conditions

ACIQ-42-AHD Features

  • 36,000 BTU Output – Ideal for large spaces needing efficient, ducted airflow distribution
  • Variable Speed DC Blower – Enables smooth airflow, reduces noise, and optimizes humidity control
  • Smart Communication – Works with inverter condensers to self-adjust based on thermostat signals
  • Quiet Operation – Designed to minimize operational sound, ideal for homes and customer-facing spaces
  • Service-Friendly – Built-in diagnostics reduce maintenance time and improve service accuracy
  • Flexible Control Options – Compatible with most standard and smart thermostats
  • Cold Climate Support – Optional electric heat kits ensure reliable performance even in frigid conditions

ACiQ 3.5 Ton Central Ducted Air Handler Specs

SKU ACIQ-42-AHD
Weight (in lbs) 190.92
Brand/Manufacturer ACiQ
Replaces ACiQ-42-AHB
Cooling BTU 42,000 BTU
Maximum CFM 1601
Decibel Level (dBA) Up to 52 Decibels
Electric Backup Heat Capabilities (Optional) 5 Kilowatts, 10 Kilowatts, 15 Kilowatts, 20 Kilowatts
Configuration Multi-Positional
Refrigerant R454B
Liquid Valve Size 3/8"
Suction Valve Size 3/4"
Electrical 208/230V 1 Phase 60 Hz
Max Breaker Size 15 Amps
Min. Breaker Size 14.5 / 11.0 Amps
Tonnage 4 Ton
BTU/Tonnage 42,000 BTU/3.5 Ton
Mini Split Type Multi-Positional
Zone Compatibility Single Zone
Connection Flared
Height 53"
Width 24.5"
Depth 21"
Warranty 12 Years Compressor and 7 Years Parts with Online Registration

ACiQ Industry-Leading Warranties
ACiQ stands behind every product with exceptional warranty coverage, ensuring long-term reliability and peace of mind. Online registration is required to activate full warranty benefits.

Product Warranty Details

  • Mini Split and High-Efficiency Systems: 12-year compressor, 7-year parts
  • ACiQ Essentials: 6-year compressor, 4-year parts
  • A.C. and Heat Pump Condenser: 10-year compressor and coil
  • Furnace: Lifetime warranty for original owner
  • Air Handler and Coil: 10-year parts for original owner
  • Residential Packaged Units: Lifetime heat exchanger for original owner
  • PTAC: 7-year compressor, 1-year parts
  • Commercial Packaged Units: 10-year heat exchanger, 5-year compressor, 1-year parts
  • Pool Heat Pump: 5-year heat exchanger and compressor, 3-year parts
  • Hybrid Water Heater: 12-year tank, 10-year parts
  • Mobile Home Electric Furnace and Coil: 10-year parts

Warranty Claim Process

  1. System Diagnosis
  2. Method of Resolution
  3. Warranty Acceptance
  4. Faulty Parts Inspected
  5. Replacement Parts Shipped

Register Your System
Activate your warranty at ACiQ.com.

Need Assistance?
For warranty claims or inquiries, click here.

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