Description
4 Ton Air Handler – Variable Speed (15KW Heat Kit Included)
Dave Lennox Signature Collection
Merit® Series – Variable-Speed Air Handler
The Merit® Series 4 Ton Air Handler – Variable-Speed delivers dependable comfort with high-efficiency performance and smooth, consistent airflow. Designed to meet modern HVAC standards, this air handler is fully compatible with 2025-compliant R-454B refrigerant and includes advanced safety features for reliable operation and peace of mind.
High-Efficiency Performance
This air handler features a high-efficiency indoor coil that provides exceptional heat transfer while maintaining low air resistance. A variable-speed blower motor automatically adjusts airflow to maintain even temperatures, reduce energy usage, and prevent uncomfortable temperature swings.
Quantum™ Coil Durability
Equipped with Lennox’s exclusive all-aluminum Quantum™ Coil, this air handler is engineered to resist corrosion caused by indoor environmental contaminants. The proprietary aluminum alloy helps extend system life and maintain long-term performance.
2025 Refrigerant-Ready with Leak Detection
Factory-ready for R-454B refrigerant, this air handler includes an integrated Refrigerant Detection System. If a refrigerant leak is detected, a built-in sensor alerts the mitigation control to initiate a flush sequence, helping ensure safe and dependable operation.
Quiet, Clean, and Comfortable Operation
A fully insulated cabinet reduces operating noise and helps prevent cabinet sweating in hot and humid environments. The antimicrobial drain pan resists mold and mildew growth, improving indoor air quality and reducing the risk of drain line blockages.
Optional Electric Heat Capability
In addition, optional electric heat strips are available to provide an instant boost of warm air during colder conditions. Compatible electric heat kits allow added flexibility and enhanced comfort when supplemental heating is needed.
Key Benefits Of The 4 Ton Air Handler – Variable Speed
✅ Variable-speed blower delivers smooth, consistent airflow
✅ Quantum™ Coil resists corrosion for long-lasting durability
✅ Factory-ready for R-454B refrigerant with leak detection system
✅ Fully insulated cabinet for quieter operation
✅ Antimicrobial drain pan supports cleaner indoor air
✅ High-efficiency indoor coil improves overall system performance
✅ Optional electric heat available for added comfort
