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MRCOOL

MRCOOL Signature 3 Ton up to 14.3 SEER2 36,000 BTU Split System Heat Pump

MCAESHS4T3621AA

33,000 BTU · 14.3 SEER2 · 208/230V · R-454B

Part of Signature Series – Complete Systems

Cooling capacity
33,000 BTU3 tons
Efficiency
14.3 SEER2
Power
208/230V30A breaker
Refrigerant
R-454B

Call for pricing Add it to your cart and send us a quote request — or call 678-467-5515.

Not sure about the size? Use the BTU sizing calculator, or call us and we'll size it with you. Professional installation by a licensed HVAC contractor is required for the manufacturer warranty.

Distributor pricing and stock: call 678-467-5515 or email sales@discountkings.net.

About this product

The MRCOOL® Signature Series 36k Heat Pump Condenser is a dependable, high-efficiency solution designed to provide reliable year-round comfort. With energy performance ratings of 14.3 SEER2 and 11.7 EER2, it delivers consistent heating and cooling while helping reduce energy consumption and utility bills. Whether battling summer heat or winter cold, this unit ensures your home stays comfortable in every season. Factory pre-charged with R-454B refrigerant, this system supports eco-conscious upgrades, while the pre-charged design simplifies installation to save you on time and labor costs. At its core, a single-speed scroll compressor provides dependable operation. Inner-groove copper tubing improves heat transfer, enhancing system responsiveness and efficiency. Built-in temperature and pressure sensors monitor conditions to help prevent system strain, while an intelligent defrost function ensures continued performance in colder climates. Despite its large capacity, the unit operates quietly, just 63 decibels, thanks to a precision-engineered sound-dampening top that minimizes noise without compromising airflow. It’s an ideal solution for noise-sensitive environments. Durability is built in with a steel louver coil guard and wire fan discharge grille designed to provide added protection for internal components, and extend the longevity of the unit. Installation and maintenance are hassle-free with features like sweat connection service valves and an accessible gauge port. Backed by a 10-year limited parts warranty and a limited lifetime compressor warranty, the MRCOOL® Signature Series 36k Heat Pump Condenser offers reliable comfort and long-term value.

Documents & manuals

Specifications

Capacity & efficiency
TypeComplete system — heat pump (heats & cools)
SeriesSignature Series
Cooling capacity33,000 BTU
Heating capacity33,000 BTU
Nominal size3 tons
SEER214.3
EER211.7
Heats down to5°F outdoor
Airflow2750 CFM
Sound level63 dBA
Electrical
Voltage208/230V
Phase1-phase
Min. circuit ampacity (MCA)22.2 A
Max. breaker (MOP)30 A
Refrigerant & line set
RefrigerantR-454B
Factory charge102.3 oz
Max. line length150 ft
Liquid line3/8"
Suction line3/4"
Physical
Dimensions (in)29.14 W × 29.14 D × 25 H
Weight173 lb
Shipping weight182 lb
ColorGrey
Certifications, warranty & ordering
AHRI certifiedYes
Safety listingUL, ETL
Parts warranty10 years
UPC840255595803