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

MRCOOL

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

Model: MCAESHS4T3621AA SKU: MCAESHS4T3621AA

3 Ton  |  SEER2 14.3  |  R-454B  |  208/230V

  • 33000 BTU cooling capacity
  • Up to 14.3 SEER2 rated efficiency
  • Scroll compressor
  • Uses R-454B refrigerant
$1,864.51 Free Shipping
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At a Glance

Key Specifications

System Type Split System Heat Pump Condenser
Capacity 33000 BTU
Tonnage 3 Ton
SEER2 14.3
Voltage 208/230V · Single Phase
Refrigerant R-454B
Overview

Product Overview

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.

Additional specifications

UPC 840255595803
Series Signature Series Heat Pump Condenser
Refrigerant charge (oz) 102.3
Heating capacity (BTU/h) 33000
Airflow (CFM) 2750
Cycle (Hz) 60
Min circuit ampacity (A) 22.2
Max fuse / breaker (A) 30
Inverter No
Max line set length (ft) 150
Min ambient cooling (F) 59
Min ambient heating (F) 5
AHRI certified Yes
ENERGY STAR certified No
UL listed Yes
ETL listed Yes
Parts warranty (years) 10 Year
Compressor warranty (yrs) Limited Lifetime
Shipping W x H x D (in) 30.3 x 26.2 x 30.3
Shipping weight (lbs) 182

Documents

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.

Technical Specifications

Performance

System TypeSplit System Heat Pump Condenser
Capacity33000 BTU
Tonnage3 Ton
Compressor / StagesScroll
SEER214.3
EER211.7
HSPF27.5
Sound Level63 dBA

Electrical & Fuel

Voltage208/230V
PhaseSingle Phase
RefrigerantR-454B
Connection SizeLiquid 3/8" / Suction 3/4"

Physical & Certifications

Dimensions (W x H x D)29.14 x 25 x 29.14
Weight173 lb
Color / FinishGrey
Shipping & Delivery
Orders typically ship within 1-3 business days. Freight items are delivered by appointment to a curbside address; someone must be present to receive and inspect the shipment. Inspect for damage before signing. Returns are accepted within 30 days on unused, uninstalled equipment in original packaging -- return shipping and a restocking fee may apply. See our Shipping Policy and Return & Refund Policy for full terms.
Manufacturer Warranty

Covered by MRCOOL's limited warranty. Warranty terms are set by MRCOOL and differ by product line — whether registration is required, and whether the installation has to be performed by a state-licensed HVAC contractor, is not the same across the range. In every case coverage depends on the unit being installed according to MRCOOL's instructions and all applicable codes and permits. MRCOOL's warranty document for this model is the controlling source; ask us and we'll send you the one that applies.

Professional Installation Recommended

Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.

Before You Order

Make sure it is the right size, and that you have the rest of it

Most outdoor units ship alone. If you are not certain of the capacity, or of what has to go with this unit, these two will work it out with you.

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