
MRCOOL® Signature Series 30K Heat Pump System (Stud Mount) — MCAEAWPEF30E21AA + MCAESHS4T3021AA
Overview
This system pairs theMRCOOL® Signature Series 30K stud mount air handlerwith theSignature Series 2.5-ton heat pump condenserfor efficient year-round comfort. The stud mount air handler is built toinstall between standard wall studsand offersfront or bottom returnoptions for flexible ducting.
Highlights
- Between-stud fit:Stud mount cabinet helps solve installs where floor/closet space is limited.
- Flexible return air:Choosefrontorbottomreturn to match your layout.
- Efficient indoor airflow:ECM blower motor supports steady airflow and improved efficiency.
- Cold-weather capability:Outdoor unit lists5°Fminimum ambient heating operation plus intelligent defrost.
- Installer-friendly:Outdoor unit lists sweat connection valves and easy-access gauge port.
2.5 Ton (30K Class)
14.3 SEER2 • 7.5 HSPF2
3/8" Liquid • 3/4" Suction
5°F Heat • 59°F Cool
Performance varies by climate and installation. Manual J sizing is recommended.
What’s Included
- Stud Mount Air Handler:MCAEAWPEF30E21AA
- Heat Pump Condenser:MCAESHS4T3021AA
- Documentation (see Documents & Downloads)
Indoor Specs
Model:MCAEAWPEF30E21AA (Signature Series Stud Mount Air Handler)
| Unit Type | Air Handler |
| Configuration / Mount | Stud Mount |
| Airflow Direction | Upflow |
| Tonnage | 2.5 Ton |
| Airflow (CFM) | 965 |
| Sound | 55 dB(A) |
| Refrigerant | R-454B |
| Metering Device | Orifice |
| Drain Connection Size | 3/4" |
| Line Sizes | Liquid 3/8" • Suction 3/4" |
| Blower Motor Type | ECM |
| Blower Motor | 1/2 HP • 5 Speeds • 960 RPM |
| Filter | Replaceable • 20" × 20" × 1" |
| Electrical | 208/230V • 1-Phase • 60 Hz |
| Min Circuit Ampacity (MCA) | 4.5A |
| Max Fuse / Breaker | 6A |
| Aux Heat | Not included • Optional heat kit available (5 kW, 7.5 kW, 10 kW) |
| Certifications | UL Listed • CSA Listed • ETL Listed • AHRI Certified |
| Color | Grey |
| Dimensions (W×D×H) | 22.125" × 19" × 39.5" |
| Net Weight | 110 lb |
| GTIN / UPC | GTIN 00840255595933 • UPC 840255595933 |
| Proposition 65 | Yes |
Designed to work withSignature Series top discharge condensers.
Outdoor Specs
Model:MCAESHS4T3021AA (Signature Series Split System Heat Pump Condenser)
| Unit Type | Split System Heat Pump Condenser |
| Tonnage | 2.5 Ton |
| Cooling / Heating Capacity | 27,500 BTU / 27,500 BTU |
| Efficiency | 14.3 SEER2 • 11.7 EER2 • 7.5 HSPF2 |
| Airflow (CFM) | 2200 |
| Sound | 63 dB(A) |
| Inverter | No |
| Min Ambient (Cooling) | 59°F |
| Min Ambient (Heating) | 5°F |
| Refrigerant | R-454B • 93.5 oz |
| Max Line Set Length | 100 ft |
| Line Sizes | Liquid 3/8" • Suction 3/4" |
| Compressor | Scroll |
| Condenser Fan Motor | PSC • 1/5 HP |
| Electrical | 208/230V • 1-Phase • 60 Hz |
| Min Circuit Ampacity (MCA) | 18A |
| Max Fuse / Breaker | 30A |
| Certifications | UL Listed • CSA Listed • ETL Listed • AHRI Certified |
| Color | Grey |
| Dimensions (W×D×H) | 23.6" × 23.6" × 25" |
| Net Weight | 146 lb |
| GTIN / UPC | GTIN 00840255595797 • UPC 840255595797 |
| Proposition 65 | Yes |
Designed to work withSignature Series multi-positionorstud mountair handlers.
Documents & Downloads
- Signature Series Stud Mount Air Handler (MCAEAWPEF30E21AA)
- Brochure (EN)
- Installation & User Manual (EN)
- Warranty (EN)
- Signature Series Heat Pump Condenser (MCAESHS4T3021AA)
- Brochure (EN)
- Installation & User Manual (EN)
- Warranty (EN)
- AHRI Certificate (PDF)
- EnergyGuide (PDF)
Important
- Stud mount configuration:Designed to fit between studs; supportsfrontandbottomreturn air (verify clearances in the install manual).
- Line sizes:Both components list3/8" liquidand3/4" suction.
- Line set length:Outdoor unit lists up to100 ftmaximum line set length; verify long-line requirements in the install manual.
- Minimum outdoor temps:Outdoor unit lists59°Fminimum ambient for cooling and5°Fminimum ambient for heating.
- Electrical:Both components are208/230V, 1-phase, 60 Hz. Verify breaker/fuse sizing per install manual and local code.
- Aux heat option:Air handler supports optional heat kits (listed as5 kW,7.5 kW,10 kW) for added cold-weather comfort (sold separately).
FAQs
What is a stud mount air handler?
A stud mount air handler is designed tofit between standard wall studs, helping solve installs where a traditional cabinet won’t fit in a closet/utility space.
Does this system provide heating and cooling?
Yes. The outdoor unit is aheat pump condenser, so the system is listed forheating and cooling.
What refrigerant does it use?
Both components listR-454B.
How cold can it run in heating?
The outdoor unit lists a minimum ambient heating temperature of5°F.
What warranty coverage is included?
Warranty is listed as10-year limited parts, withlimited compressorcoverage referenced for the outdoor unit.






















































































