MRCOOL® Signature 3 Ton 36K BTU Split Air Conditioner Condenser, MCAESAS4T3621AA

Product Description 

MRCOOL® Signature Series 36K 3-Ton Cooling-Only AC Condenser (230V)

The MRCOOL® Signature Series 36K (3-Ton) Air Conditioner Condenser is designed for homeowners who need strong, dependable cooling for larger living spaces while keeping operating costs under control. Whether you’re replacing an aging AC system or installing new equipment, this cooling-only condenser delivers reliable performance during the hottest months of the year.

With an efficiency rating of 14.3 SEER2 and 11.7 EER2, this unit provides consistent, energy-conscious cooling without sacrificing comfort. It ships factory pre-charged with R-454B refrigerant, a next-generation, low-GWP refrigerant that meets modern environmental standards. The factory charge also helps reduce installation time and labor costs.

At the core of the system is a durable single-speed scroll compressor, a proven design known for long service life and steady operation. Inner-groove copper tubing improves heat transfer efficiency, allowing the system to cool more evenly and respond quickly to temperature changes. Integrated pressure and temperature sensors help protect the system during demanding conditions.

Despite its larger capacity, the unit operates at just 63 dBA, making it quiet enough for residential neighborhoods. A sound-control top, along with a steel louvered coil guard and wire fan discharge grille, helps reduce noise, protect internal components, and extend the life of the condenser.

Designed to pair with MRCOOL® Signature Series multi-position or stud-mount air handlers, this cooling-only condenser is backed by a 10-year limited parts warranty and a limited lifetime compressor warranty, giving homeowners long-term confidence in their investment.

If you’re looking for powerful cooling, quiet operation, and proven reliability, the MRCOOL Signature Series 36K AC condenser is a smart choice for larger homes.

 

COMPATIBILITY & SYSTEM PAIRINGS

✔ MRCOOL® Signature Series Multi-Position Air Handler

✔ MRCOOL® Signature Series Stud-Mount Air Handler

✔ Cooling-only split-system applications

✔ Factory pre-charged R-454B refrigerant

✔ VersaPro Furnace 

 

TECHNICAL SPECIFICATIONS  

Brand: MRCOOL

Series: Signature Series

Model: MCAESAS4T3621AA

Unit Type: Split System Air Conditioner Condenser

 

Cooling Capacity: 33,000 BTU

Tonnage: 3 Ton

SEER2: 14.3

EER2: 11.7

 

Voltage: 208/230V

Phase: 1

Frequency: 60 Hz

Max Breaker: 30A

Min Circuit Ampacity: 22.2A

 

Refrigerant Type: R-454B

Refrigerant Charge: 98.1 oz

Liquid Line: 3/8”

Suction Line: 3/4”

Max Lineset Length: 150 ft

 

Compressor Type: Single-Speed Scroll

Inverter Driven: No

Minimum Ambient Cooling: 59°F

Sound Rating: 63 dBA

Certifications: AHRI, UL, CSA, ETL

ENERGY STAR®: No

 

Warranty:

• 10-Year Parts Warranty

• Limited Lifetime Compressor Warranty

 

DIMENSIONS & WEIGHT

Net Dimensions:

• Width: 29.14”

• Depth: 29.14”

• Height: 25”

Net Weight: 152 lbs

 

Shipping Dimensions:

• Width: 30.3”

• Depth: 30.3”

• Height: 26.2”

Shipping Weight: 160 lbs

 

Frequently Asked Questions 

Is this a heat pump or cooling-only system?

This is a cooling-only air conditioner condenser. It does not provide heating.

Which air handlers are compatible?

It pairs with MRCOOL Signature Series multi-position and stud-mount air handlers. Also our MRCOOL VersaPro furnace. 

Is R-454B refrigerant environmentally friendly?

Yes. R-454B is a low-GWP refrigerant designed to reduce environmental impact while maintaining performance.

 

How loud is this condenser?

It operates at 63 dBA, similar to common household appliances.

 

What warranty coverage is included?

MRCOOL includes a 10-year parts warranty and a limited lifetime compressor warranty.

 

Why Buy From MRCOOL DIRECT?

When you order from MRCOOL Direct, you get:

• ✅ Authorized MRCOOL® dealer – Your warranty is protected
• ✅ Factory-fresh units – No refurbished or mystery sources
• ✅ Fast U.S. shipping – Most in-stock items ship in 1–3 business days
• ✅ Financing options – Make high-efficiency comfort more affordable
• ✅ Real product support – Help with sizing, line set selection, and DIY questions
• ✅ No third-party marketplace middlemen – Just genuine MRCOOL® systems from a trusted MRCOOL® dealer.

BUY DIRECT!

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615-553-8118

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