MrCool Signature 3.5 Ton Central Air Conditioner System with Multi-Position Air Handler – 14.3 SEER2, R454B

MRCOOL 3.5 Ton Air Conditioner Condenser – 14.3 SEER2 Signature Series Cooling-Only System

High-Performance 39,000 BTU Cooling for Larger Residential Spaces

The MRCOOL Signature Series 3.5 Ton air conditioner condenser delivers powerful and efficient cooling for larger homes and demanding applications. With 39,000 BTU of cooling capacity and up to 14.3 SEER2 efficiency, this unit is designed to keep indoor spaces comfortable even during peak summer heat.

Built with a durable steel cabinet and protective coil guard, this condenser is designed for long-term reliability. Its quiet operation and compact footprint make it a practical choice for homeowners, while the R-454B refrigerant ensures compliance with modern environmental standards.

Features & Benefits

• 3.5 Ton capacity with 39,000 BTU cooling performance
• Up to 14.3 SEER2 efficiency for energy savings
• Cooling-only condenser ideal for AC-focused installations
• R-454B refrigerant with low environmental impact
• Quiet operation around 65 dB(A)
• Durable steel cabinet with louvered coil protection
• Compact footprint for easier installation
• Built-in temperature and pressure sensors for system protection
• 208/230V single-phase compatibility
• 10-year parts limited warranty and lifetime compressor coverage

MRCOOL 3.5 Ton Multi-Position Air Handler – Signature Series High-Performance Indoor Unit

Enhanced 42,000 BTU Airflow for Larger Residential Comfort Systems

The MRCOOL Signature Series 3.5 Ton air handler provides enhanced airflow performance for larger homes requiring 42,000 BTU capacity. Designed for efficiency and durability, this unit helps maintain consistent indoor comfort across all seasons.

Its ECM motor and multi-position capability allow for flexible installation and improved system performance. Built with high-quality materials, this air handler is engineered for long-term reliability and efficient operation.

Features & Benefits

• 3.5 Ton capacity for 42,000 BTU systems
• Energy-efficient ECM blower motor
• Multi-position installation (upflow, downflow, horizontal)
• R-454B compatible system design
• Copper A-coil with aluminum fins
• Quiet operation around 54 dB(A)
• Durable cabinet construction
• Compact footprint for installation flexibility
• Third-party thermostat compatibility
• 10-year limited parts warranty

MRCOOL Electric Heat Kit for Multi-Position Air Handlers – 5kW, 7.5kW & 10kW Auxiliary Heat Options

Reliable Supplemental Heating for 1.5–5 Ton HVAC Systems in Cold Weather Conditions

The MRCOOL electric heat kit is designed to provide dependable supplemental heating for Signature Series multi-position air handlers. Available in 5kW, 7.5kW, and 10kW options, these heat strips enhance system performance by delivering additional warmth when outdoor temperatures drop and heat pump efficiency decreases.

Engineered for seamless integration, each heat kit installs directly inside compatible MRCOOL air handlers and operates automatically through the system’s heating controls. With built-in safety features and durable heating elements, these kits offer a reliable and efficient solution for maintaining indoor comfort in colder climates.

Features & Benefits

• Available in 5kW, 7.5kW, and 10kW heating capacities
• Designed for MRCOOL multi-position air handlers (1.5–5 ton systems / 18K–60K BTU)
• Provides supplemental or backup heat for heat pump systems
• Helps maintain indoor comfort during cold weather and extreme conditions
• Installs directly inside the air handler cabinet for a clean, integrated setup
• Built-in circuit breaker for safety and service disconnect
• 208/230V single-phase operation
• Durable electric heating elements for long-term reliability
• Automatic operation through system thermostat controls
• Ideal for residential applications requiring auxiliary heat support

Fast nationwide fulfillment from the USA. Free shipping on qualifying orders over $1,500. See our shipping and returns policy for full details.