This is the outdoor condenser (outdoor unit) only for a Carrier Performance 26 single-zone ductless heat pump system. It's built for homeowners or installers who already have a matched indoor unit selected, or who are replacing an existing 37MARAQ36AA3 outdoor unit — not a complete wall-mount, cassette, or ducted kit.
The 37MARAQ36AA3 is the size-36 outdoor condenser in Carrier's Performance 26 lineup, rated for AHRI-matched single-zone use with a compatible indoor unit (indoor unit sold separately, and not specified in this listing). Manufacturer literature lists Energy Star-eligible ratings up to 26 SEER2 and 13.9 HSPF2 for the 37MARA family; size-specific SEER2/HSPF2/EER2 figures for the 36K unit are not broken out in the provided data and are marked [NEEDS VERIFICATION] below rather than assumed. 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 unit: Carrier Performance 26, model 37MARAQ36AA3, size 36 (36,000 BTU/h nominal cooling)
- Indoor unit: NOT included — this listing is the outdoor condenser only. A matched indoor head (wall mount, cassette, ducted, or floor console) must be selected and purchased separately.
Installation Requirements & Accessories
- Voltage: 208/230V; 1Ph; 60Hz
- Minimum Circuit Ampacity (MCA): 33A; Maximum Overcurrent Protection (MOP): 35A
- Refrigerant: R454B (A2L, mildly flammable classification) — Ester Oil
- Refrigerant charge (factory): 7.05 lb (3.2 kg)
- Liquid line: 3/8 in (9.52mm); Suction line: 5/8 in (15.9mm)
- Line Set Sold Separately — not included with this outdoor unit
- Professional installation required. This unit is NOT a DIY pre-charged quick-connect kit.
- Not compatible with 115V-only circuits (this model is 208/230V)
- Not included: indoor unit, line set, wall sleeve, mounting bracket, or grille
Pro-Installer Tip
R-454B is a mildly flammable (A2L) refrigerant, so flare connections on the liquid and suction lines need to be leak-free the first time — a loose flare here is not just a comfort issue, it's a code and safety issue. Poor flare torque leads to slow refrigerant loss over the season, which shows up later as reduced capacity or intermittent fault codes at the indoor head. Torque flare nuts to the fitting manufacturer's spec with a calibrated digital torque wrench rather than "by feel," and confirm connections with a nitrogen pressure test before charging. EPA Section 608 certification is required to handle and charge this refrigerant, and only a licensed technician should open the sealed system.
Key Benefits
- Variable-speed (inverter-driven) compressor for steadier temperature control versus single-speed compressors
- Outdoor sound level of 63 dBA at this size (36K), per manufacturer sound data
- Puron Advance™ (R454B) refrigerant, reducing global warming potential versus older refrigerants while remaining non-ozone-depleting
- Compatible with multiple indoor unit architectures (wall mount, cassette, ducted, floor console) when properly AHRI-matched
- 3-minute compressor time delay and high compressor discharge temperature protection, per manufacturer listing data
| Spec | Value | Unit |
|---|---|---|
| Component Role | Outdoor Condenser (Outdoor Unit Only) | — |
| Cooling Rated Capacity | 36000 | BTU/h |
| Heating Rated Capacity | 24200 | BTU/h |
| SEER2 | [NEEDS VERIFICATION] | — |
| HSPF2 | [NEEDS VERIFICATION] | — |
| EER2 | [NEEDS VERIFICATION] | — |
| Voltage | 208/230V;1Ph;60Hz | V |
| Minimum Circuit Ampacity (MCA) | 33 | A |
| Maximum Overcurrent Protection (MOP) | 35 | A |
| Outdoor Sound Level | 63 | dBA |
| Refrigerant Type | R454B | — |
| Refrigerant Charge Amount | 7.05 (3.2) | lb (kg) |
| Liquid Pipe Size | 3/8 (9.52) | in (mm) |
| Suction Pipe Size | 5/8 (15.9) | in (mm) |
| Net Weight | 150.36 | lb |
| Gross Weight | 160.28 | lb |
| Cooling Operating Range | -13 to 122 (-25 to 50) | °F (°C) |
| Heating Operating Range | -13 to 75 (-25 to 24) | °F (°C) |
| Compressor Type | Variable-speed | — |
| Zone Count | 1 (Single-Zone) | — |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
- Matched to AHRI-certified indoor units in the 37MARA family sized for 36K (per manufacturer combination tables), such as 615AHAQ36XA1/XA3-style indoor heads and 45-series cassette, floor console, or ducted indoor units listed for size 36 — confirm the exact matched indoor model number before ordering.
- Compatible with dedicated 208/230V single-phase, 60Hz circuits only.
- Not compatible with 115V-only circuits.
- Line set is NOT included — this is not a pre-charged DIY kit; size the line set to 3/8 in liquid / 5/8 in suction per the table above.
- Indoor unit, wall sleeve, mounting bracket, and grille are NOT included with this outdoor-unit listing.
- Not a listed match for outdoor condensers outside the 37MARA family or for indoor heads not AHRI-rated against 37MARAQ36AA3.
FAQ
What breaker size do I need for this system?
For the 37MARAQ36AA3 outdoor unit, Minimum Circuit Ampacity (MCA) is 33A and Maximum Overcurrent Protection (MOP) is 35A. Use these values with the National Electrical Code and local codes to size the breaker correctly — do not guess at a different size.
Is professional installation required to keep the warranty valid, or is this a true DIY kit?
This is not a DIY kit. This unit uses R-454B (A2L) refrigerant and requires professional installation by a licensed HVAC contractor. It is not a pre-charged quick-connect system.
Is the line set included, and if not, what size do I need to buy?
The line set is not included and is sold separately. For the 37MARAQ36AA3, the liquid line is 3/8 in (9.52mm) and the suction line is 5/8 in (15.9mm).
Does this system work in cold climates (low-ambient heating)?
Manufacturer data lists a heating operating range of -13°F to 75°F (-25°C to 24°C) and a cooling operating range of -13°F to 122°F (-25°C to 50°C) for the 37MARA family. Confirm these ranges against the full published spec sheet before relying on them for your specific climate zone.
Compliance & Warranty
Installation by a licensed HVAC professional is required to maintain warranty. This unit uses R-454B (A2L) refrigerant and must be installed and charged by an EPA Section 608-certified technician. Carrier's Consumer Choice Warranty applies upon timely registration: on eligible equipment, choose either a 10-year parts-only limited warranty or a 5-year parts plus 3-year labor limited warranty. Refer to the manufacturer warranty documentation in the "Resources (System Manuals and Warranty)" Tab above for full terms and registration requirements.
