Description
MRCOOL ProDirect 36K BTU 3 Ton ECM Air Handler ONLY — HAH036FEA
Energy-Efficient Multi-Position Air Handler with Variable-Speed ECM Motor
The MRCOOL ProDirect 36K BTU 3 Ton ECM Air Handler (HAH036FEA) is a high-efficiency, multi-position indoor air handler designed for central ducted HVAC systems. Featuring an ECM (Electronically Commutated Motor) — a variable-speed, brushless DC motor — this air handler delivers superior energy efficiency, quieter operation, and improved humidity control compared to standard PSC motor units.
The ECM motor automatically adjusts airflow speed to match system demands, reducing energy consumption by up to 75% compared to PSC motors during partial-load operation. Built with all-aluminum tubes and fins for long-lasting durability, this air handler is compatible with MRCOOL ProDirect Series condensers and other compatible R-410A condensers. ETL Listed and AHRI Certified for verified performance and safety compliance.
Technical Specifications
| Specification | Value |
|---|---|
| Model / SKU | HAH036FEA |
| Series | ProDirect Series ECM Air Handler |
| Type | Air Handler ONLY — Multi-Position Central Ducted |
| Capacity | 36,000 BTU |
| Tonnage | 3 Ton |
| Coverage Area | 1500–1800 sq ft |
| Motor Type | ECM (Electronically Commutated Motor) — Variable Speed |
| Refrigerant | R-410A |
| Voltage | 208-230V / 60Hz |
| Installation Positions | Upflow, Downflow, Horizontal |
| Dimensions | 21" W x 49.5" H x 20.5" D |
| Net Weight | 128 lbs (58.1 kg) |
| Coil Material | All-Aluminum Tubes and Fins |
| Air Leakage | 2% or less |
| Certifications | ETL Listed, AHRI Certified |
| Warranty | 10-Year Registered Parts |
Product Tips
- Air Handler ONLY: This listing is for the indoor air handler unit only. A compatible ProDirect Series condenser (sold separately) is required to complete the system.
- ECM Motor Advantage: The variable-speed ECM motor reduces energy consumption significantly during partial-load operation, improves humidity control, and operates more quietly than PSC motors.
- Multi-Position Installation: Can be installed in upflow, downflow, or horizontal configurations. Verify your installation space before ordering.
- R-410A Refrigerant: This unit uses R-410A refrigerant. Ensure your technician is certified for R-410A handling. Note: newer MRCOOL systems use R-454B.
- 10-Year Warranty: Register within 90 days of installation for the full 10-Year Registered Parts Warranty.
Frequently Asked Questions
Is this a complete system or just the air handler?
This is the air handler (indoor unit) only. You will need a compatible ProDirect Series condenser (outdoor unit) to complete the system. The condenser is sold separately.
What is the difference between ECM and PSC motors?
An ECM (Electronically Commutated Motor) is a variable-speed, brushless DC motor that adjusts airflow to match system demands. It uses up to 75% less energy than a PSC motor during partial-load operation, operates more quietly, and provides better humidity control. A PSC (Permanent Split Capacitor) motor is a single-speed motor — reliable and cost-effective but less efficient.
Does this require professional installation?
Yes. Central ducted systems require a licensed HVAC technician. Refrigerant handling requires EPA Section 608 certification. DIY installation voids the warranty.
What refrigerant does this unit use?
Uses R-410A refrigerant. Note that newer MRCOOL systems have transitioned to R-454B. Ensure your technician has appropriate R-410A recovery equipment.
What size space can this condition?
The 36K BTU unit is designed for approximately 1500–1800 sq ft, depending on insulation, climate zone, and ceiling height.
What electrical requirements are needed?
Requires a dedicated 208-230V circuit. Consult the installation manual for specific breaker sizing requirements.
What is the warranty?
10-Year Registered Parts Warranty when registered within 90 days of installation by a licensed HVAC contractor.
Can this be installed horizontally?
Yes. The ProDirect ECM Air Handler supports upflow, downflow, and horizontal installation configurations.
Will this work with a heat pump condenser?
Yes. This air handler is compatible with MRCOOL ProDirect Series Heat Pump Condensers (HHP series) for both heating and cooling operation.
What accessories are compatible?
Compatible with MRCOOL central split system line sets, MRCOOL Signature Series Heat Kits for electric heat, and standard 24V thermostat controls.
Compatible Accessories
| Accessory | Purpose |
|---|---|
| MRCOOL Central Split System Line Set | Connects indoor air handler to outdoor condenser |
| ProDirect Series Heat Pump Condenser | Matching outdoor unit for complete system |
| Signature Series Heat Kit | Electric heat strip for supplemental heating |
| Standard 24V Thermostat | System control (sold separately) |
Need help selecting the right condenser or accessories?
Contact our HVAC specialists for expert guidance on system configuration, sizing, and installation requirements.
Warranty Information
The MRCOOL ProDirect ECM Air Handler is covered by a 10-Year Registered Parts Warranty when properly registered within 90 days of installation by a licensed HVAC contractor.
