This is the outdoor condenser only β Carrier Performance 26 model 37MARAQ30AA3, a 30,000 BTU/h single-zone heat pump condenser for ductless comfort systems. It's built for homeowners or contractors who already have (or are separately sourcing) a matched indoor unit, line set, and installation accessories; this listing does not include those items.
This 37MARAQ30AA3 outdoor condenser is the 30K-size unit in Carrier's Performance 26 (37MARA) family, rated for single-zone use with a matched indoor head. AHRI-certified performance data for this size pairs it with indoor model 615AHAQ30XA3 (rated heating capacity 20,400 Btu/h) and, in an alternate documented combination, with indoor model 37MARAQ30AA3 alongside outdoor model 45MBAAQ30XB3. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
System Components
- Outdoor Condenser: Carrier Performance 26, model 37MARAQ30AA3, 30,000 BTU/h nominal size, variable-speed (inverter-driven) compressor, R-454B (Puron Advance) refrigerant.
- Indoor Unit: NOT included. This listing is the outdoor condenser only. A compatible AHRI-matched indoor head must be purchased separately.
Installation Requirements & Accessories
- Voltage: 208/230V; 1Ph; 60Hz. Not compatible with 115V-only circuits.
- Minimum Circuit Ampacity (MCA): 28A. Maximum Overcurrent Protection (MOP): 30A.
- Refrigerant charge as shipped: 5.29 lb (2.4 kg) R-454B, an A2L mildly flammable refrigerant class.
- Liquid line: 3/8 in (9.52mm). Suction line: 5/8 in (15.9mm). Line set is sold separately.
- Indoor unit, wall sleeve, mounting bracket, and disconnect are NOT included.
- Not a listed match for 115V-class indoor/outdoor families (e.g., the 12K 115V high-wall combinations) β voltage classes are not interchangeable.
- Professional installation is required; this is not a DIY pre-charged kit.
Pro-Installer Tip
R-454B is an A2L mildly flammable refrigerant, so flare connections on this 3/8 in liquid and 5/8 in suction line set demand a clean, properly sized flare with no scoring β a leaking flare here is a refrigerant-loss and code compliance issue, not just a callback. Torque each flare nut to the connection's rated spec with a calibrated torque wrench rather than "feel," and pull the system down to the manufacturer's specified vacuum level before charging to remove moisture and non-condensables that cause long-term compressor wear. Recovery, evacuation, and charging of R-454B systems require EPA Section 608 certification; confirm your technician holds current credentials before installation begins.
Key Benefits
- Variable-speed (inverter-driven) compressor for precise, steady temperature control rather than on/off cycling.
- Outdoor sound level of 61 dBA at this size β quiet enough to site near bedrooms or patios within reason.
- Puron Advance (R-454B) refrigerant reduces global warming potential by 75% compared to older refrigerants, per Carrier.
- Heating operating range down to -13Β°F (-25Β°C) ambient, supporting cold-climate low-ambient heating.
- Compatible with multiple indoor unit styles (wall, cassette, ducted) when matched to an AHRI-certified combination.
Technical Table
| Spec | Value | Unit |
|---|---|---|
| Cooling Rated Capacity | 30000 | BTU/h |
| Heating Rated Capacity | 20400 | BTU/h |
| SEER2 (family, up to) | 26 | β |
| HSPF2 (family, up to) | 13.9 | β |
| Voltage | 208/230; 1Ph; 60 | V;Ph;Hz |
| Minimum Circuit Ampacity (MCA) | 28 | A |
| Maximum Overcurrent Protection (MOP) | 30 | A |
| Outdoor Sound Level | 61 | dBA |
| Refrigerant Type | R-454B | β |
| Refrigerant Charge Amount | 5.29 (2.4) | lb (kg) |
| Liquid Line Size | 3/8 (9.52) | in (mm) |
| Suction Line Size | 5/8 (15.9) | in (mm) |
| Net Weight | 142.86 | lb |
| Gross Weight | 154.54 | lb |
| Operating Range - Cooling | -13 to 122 (-25 to 50) | Β°F (Β°C) |
| Operating Range - Heating | -13 to 75 (-25 to 24) | Β°F (Β°C) |
| Compressor Type | Variable-speed (Inverter Driven) | β |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
- This outdoor condenser (37MARAQ30AA3) requires a dedicated 208/230V; 1Ph; 60Hz circuit. It is not compatible with 115V-only circuits.
- Manufacturer AHRI data shows this outdoor unit matched with indoor model 615AHAQ30XA3 at the rated 30K size, and separately paired in family documentation with 45MBAAQ30XB3/37MARAQ30AA3 combinations. Confirm exact indoor model compatibility before ordering.
- Line set (3/8 in liquid, 5/8 in suction), wall sleeve, mounting bracket, and indoor unit are NOT included with this listing.
- Not a match for the 115V high-wall 12K single-zone combinations documented separately in the same family lineup β those use a different voltage class and different MCA/MOP values.
FAQ
What breaker size do I need for this system?
For the 37MARAQ30AA3 outdoor unit, Minimum Circuit Ampacity (MCA) is 28A and Maximum Overcurrent Protection (MOP) is 30A. Use these figures with your electrician to size the breaker and wiring per NEC and local code.
Is professional installation required to keep the warranty valid, or is this a true DIY kit?
This is not a DIY kit. This outdoor condenser uses R-454B (A2L) refrigerant and requires professional installation. Warranty terms per Carrier's Consumer Choice Warranty require timely registration; see manufacturer documentation for full conditions.
Is the line set included, and if not, what size do I need to buy?
The line set is sold separately and is not included with this outdoor condenser. For the 30K size, the manufacturer specifies a 3/8 in (9.52mm) liquid line and a 5/8 in (15.9mm) suction line.
Does this system work in cold climates (low-ambient heating)?
The manufacturer lists a heating operating range of -13 to 75Β°F (-25 to 24Β°C) for this outdoor unit. Rated heating capacity at the AHRI-matched indoor unit for this size is 20,400 Btu/h.
What indoor unit does this outdoor condenser pair with?
This outdoor unit (37MARAQ30AA3) is AHRI-rated in the manufacturer data with indoor model 615AHAQ30XA3 and, in a separate matched combination, with 45MBAAQ30XB3. Confirm the exact indoor pairing and accessories before ordering, since the indoor unit is sold separately.
Compliance & Warranty
This unit uses R-454B (A2L) refrigerant. Installation by a licensed HVAC professional is required to maintain warranty. EPA Section 608 certification is required for anyone handling refrigerant on this system. Carrier's Consumer Choice Warranty offers, upon timely registration on eligible equipment, either a 10-year parts-only limited warranty or a 5-year parts plus 3-year labor limited warranty; refer to the Resources tab for full terms.
