MRCOOL Signature 42K BTU, 3.5 Ton, 14.3 SEER2, Split System Heat Pump Condenser (MCAESHS4T4221AA)
$1,239.27
The MRCOOL® Signature Series 42k Heat Pump Condenser is a powerful, energy-efficient solution designed to keep your home comfortable all year. With performance ratings of 14.3 SEER2 and 11.7 EER2, it delivers reliable heating and cooling while helping reduce overall energy use…
The MRCOOL® Signature Series 42k Heat Pump Condenser is a powerful, energy-efficient solution designed to keep your home comfortable all year. With performance ratings of 14.3 SEER2 and 11.7 EER2, it delivers reliable heating and cooling while helping reduce overall energy use and utility bills. Whether you’re facing summer heat or winter chill, this system is built to perform.
Pre-charged with R-454B refrigerant, this model supports modern environmental standards with a lower global warming potential than older refrigerants. The pre-charged design also speeds up installation and reduces labor costs, making it a smart choice for contractors and homeowners alike. At its core, a single-speed scroll compressor ensures steady, long-lasting performance. Enhanced with inner-groove copper tubing, the system provides faster, more efficient heat transfer. Built-in temperature and pressure sensors offer real-time system monitoring and protection, while an intelligent defrost function prevents frost buildup for smooth operation in cold conditions.
Operating at just 65 decibels, the unit stays quiet enough for residential use, aided by a sound-dampening top. Durability features include a steel louver coil guard, and a wire fan grille, the best for protecting internal components.
The compact design allows flexible installation, and accessible service ports simplify maintenance. Backed by a 10-year limited parts warranty and a limited lifetime compressor guarantee, the MRCOOL® Signature Series 42k Heat Pump Condenser offers lasting comfort and confidence.
| Net Dimensions (In) | 29.14 D x 32.875 H x 29.14 W |
| Net Weight (Lbs) | 202 |
| Works With | Signature Series Multi-Position or Stud Mount Air Handlers |
| SEER2 | 14.3 |
| EER2 | 11.7 |
| HSPF2 | 7.5 |
| Cfm | 2950 |
| Tonnage | 3.5 |
| Cooling Capacity (Btu) | 39000 |
| Heating Capacity (Btu) | 39000 |
| Voltage (V) | 208/230 |
| Phase | 1 |
| Cycle | 60 |
| Max Fuse Breaker (A) | 45 |
| Min Circuit Ampacity (A) | 26 |
| Color | Grey |
| Refrigerant Type | R-454B |
| Refrigerant Volume (Oz) | 119.9 |
| Decibel Rating (Dba) | 65 |
| Inverter | No |
| Min Ambient Cool (F) | 59 |
| Min Ambient Heat (F) | 5 |
| Max Lineset Length (Ft) | 150 |
| Liquid Line Size | 3/8 |
| Suction Line Size | 3/4 |
| Compressor Motor Type | Scroll |
| Condenser Fan Motor Type | PSC |
| Condenser Fan Motor Hp | 1/7 |
| UL Listed | Yes |
| CSA Listed | Yes |
| ETL Listed | Yes |
| Energy Star Certified | No |
| AHRI Certified | Yes |
| Base Warranty | 10 Year Parts, Limited Lifetime Compressor Warranty |
| Base Parts Warranty | 10 Year |
| Base Compressor Warranty | Limited Lifetime |
| Contains Electronics | Yes |
| Contains Chemicals | Yes |
| Contains Compressed Gas | Yes |
| Proposition 65 Warning | Yes |
| Gross Depth (In) | 30.3 |
| Gross Height (In) | 34.8 |
| Gross Width (In) | 30.3 |
| Gross Weight (Lbs) | 212 |
| Brochure |
| Installation Manual |
| Energy Guide |
| AHRI Cert |
| Warranty |
Warranty: 5 years parts, 10 years registered parts
Product Specs
| DIMENSIONS & WEIGHT | |
|---|---|
| Net Dimensions (In) | 29.14 D x 32.875 H x 29.14 W |
| Net Weight (Lbs) | 202 |
| Gross Depth (In) | 30.3 |
| Gross Height (In) | 34.8 |
| Gross Width (In) | 30.3 |
| Gross Weight (Lbs) | 212 |
| GENERAL INFORMATION | |
| Color | Grey |
| Inverter | No |
| CAPACITY & PERFORMANCE | |
| SEER2 | 14.3 |
| EER2 | 11.7 |
| HSPF2 | 7.5 |
| Cfm | 2950 |
| Tonnage | 3.5 |
| Cooling Capacity (Btu) | 39000 |
| Heating Capacity (Btu) | 39000 |
| Cycle | 60 |
| Min Ambient Cool (F) | 59 |
| Min Ambient Heat (F) | 5 |
| COMPRESSOR & MOTORS | |
| Compressor Motor Type | Scroll |
| Condenser Fan Motor Type | PSC |
| Condenser Fan Motor Hp | 1/7 |
| NOISE LEVELS | |
| Decibel Rating (Dba) | 65 |
| ELECTRICAL REQUIREMENTS | |
| Voltage (V) | 208/230 |
| Phase | 1 |
| Max Fuse Breaker (A) | 45 |
| Min Circuit Ampacity (A) | 26 |
| REFRIGERANT & PIPING | |
| Refrigerant Type | R-454B |
| Refrigerant Volume (Oz) | 119.9 |
| Max Lineset Length (Ft) | 150 |
| Liquid Line Size | 3/8 |
| Brand | MRCOOL |
|---|
FAST NATIONWIDE SHIPPING
HVAC Prime ships virgin refrigerants and HVAC products from our Florida warehouse to job sites and businesses across the United States. Most in-stock orders are processed within 1-2 business days, and you receive tracking as soon as your order ships.
DELIVERY TIMES
- Free shipping on all orders of $150 or more.
- Retail orders typically arrive in 1-7 business days via FedEx or UPS.
- Wholesale truck freight: 2-3 business days to schedule, then 2-10 business days in transit.
All refrigerant cylinders are packed to meet DOT hazardous materials requirements. For full transit estimates, see our Shipping Times page at maxcoolrefrigerants.com/shipping-times/, or contact support@hvac-prime.com / +1 904 6638308.
Related products
High-Purity R134a Replacement Refrigerant
JOIN OUR LIST FOR DEALS ON REFRIGERANTS
Will be used in accordance with our Privacy Policy
No account yet?
Create an Account

Water Heaters
Reviews
There are no reviews yet.