Description
Overview
Mitsubishi Electric Trane HVAC US PEAD-AA36NL & SUZ-AA36NL is a 33,000 BTU/h class single-zone heat pump system pairing a horizontal-ducted indoor unit with a matching outdoor unit. Cooling capacity is rated at 33,000 Btu/h with a minimum capacity of 9,900 Btu/h at 95°F. Heating is rated at 34,000 Btu/h at 47°F with a maximum of 36,000 Btu/h and a minimum of 8,600 Btu/h, supporting variable-capacity operation as loads change. The system uses R454B refrigerant with a factory pre-charge of 3 lb 4 oz and supports up to 25 ft of pre-charged piping. This bundle is designed to deliver ducted comfort distribution while keeping the indoor unit concealed above ceilings or in soffits.
Performance
Efficiency ratings for this PEAD/SUZ system include 19.40 SEER2, 10.70 EER2, and 9.30 HSPF2 (IV). For cold-weather operation, the unit provides 21,000 Btu/h at 17°F, 18,900 Btu/h at 5°F, and 15,300 Btu/h at -4°F maximum capacity, helping extend useful heating into lower outdoor temperatures. COP is listed at 3.70 at 47°F and 2.90 at 17°F at maximum capacity, supporting efficient heat pump performance in typical winter conditions. Moisture removal is rated at 4.40 pints/h with a sensible heat factor of 0.85 at the published rating conditions. Power is 208/230V, 1-phase, 60 Hz with a recommended outdoor fuse/breaker size of 30A and SCCR of 5 kA.
Smart Features
The PEAD indoor unit includes auto changeover to automatically switch between heating and cooling to maintain setpoint comfort. This system is positioned for multi-zone comfort control applications where personalized comfort is required across multiple spaces. The indoor/outdoor communication wiring includes S1-S2 (208/230V) and S2-S3 (12–24 VDC), supporting coordinated control between the indoor and outdoor sections. Because the system is inverter-driven, it can closely match delivered capacity to demand rather than cycling only at full output. When paired with appropriate controls, variable-capacity operation supports consistent room temperatures and improved part-load performance.
Comfort & Noise
Indoor airflow (cooling/heating, dry) is listed at 848, 936, 1,024, and 1,201 CFM, allowing duct designs to be balanced across multiple fan settings. The PEAD indoor unit sound pressure level is listed at 34, 36, 38, and 42 dB(A) (cooling/heating), supporting quiet concealed operation when properly ducted. External static pressure options are listed at 0.14, 0.20, 0.28, 0.40, and 0.60 in.WG, enabling compatibility with a range of duct layouts. Outdoor sound pressure level is listed at 55 dB(A) at both cooling and heating in the referenced equipment data, helping support neighborhood-friendly installation planning. The ducted format provides uniform air distribution and reduces visible equipment in finished spaces.
Use Case Fit
This bundle is suited to residential applications requiring concealed horizontal ducted delivery where a wall-mounted indoor unit is not desired. It is also suitable for light commercial spaces such as small offices, restaurants, and retail where ducted zoning and consistent airflow are important. With selectable external static pressure up to 0.60 in.WG, the PEAD indoor unit can serve moderate duct runs and multi-room branch layouts. The outdoor unit is designed for single-zone operation—one indoor unit connected to one outdoor unit—making it a clean choice for dedicated zones or additions. R454B refrigerant and published low-temperature heating capacities make it a practical option for many U.S. climate regions where heat pump heating is desired.
Value & Reliability
The outdoor unit includes an inverter-driven compressor to deliver the precise amount of energy needed to maintain comfort, improving part-load operation. Blue Fin coating and Seacoast Protection are specified outdoor features intended to protect the outdoor heat exchanger in challenging airborne environments. Refrigerant piping uses flared connections with a maximum piping length of 100 ft and maximum height difference of 100 ft, giving layout flexibility for retrofit and new construction. Drain piping for the PEAD indoor unit is specified at 1-1/4 inch (32 mm) O.D., supporting conventional condensate management practices. Specified electrical ranges and SCCR support proper integration into typical residential and light commercial electrical systems.
Summary Wrap-Up
For buyers seeking a concealed ducted solution, the PEAD-AA36NL & SUZ-AA36NL bundle combines variable-capacity comfort with duct-friendly airflow and static pressure capability. It delivers 33,000 Btu/h rated cooling and 34,000 Btu/h rated heating at 47°F, with published heating capacity at 17°F for cold-weather support. Efficiency ratings of 19.40 SEER2 and 9.30 HSPF2 (IV) support lower operating cost compared to fixed-capacity systems at comparable output. Outdoor corrosion-protection features and inverter-driven operation support long-term performance in a wide range of environments. This is a strong fit for homeowners, multi-family projects, and light commercial buyers looking for Mitsubishi ducted comfort with a clean, concealed indoor profile.
Key Features
- Horizontal-ducted indoor configuration: Concealed PEAD indoor unit supports ducted distribution for large zones while keeping equipment out of sight.
- Variable-capacity heating and cooling: Cooling is rated at 33,000 Btu/h with a 9,900 Btu/h minimum, and heating is rated at 34,000 Btu/h at 47°F with published capacity at 17°F.
- External static pressure range: Supports 0.14 to 0.60 in.WG to help match a variety of duct designs and balancing requirements.
- Airflow and sound performance: Provides up to 1,201 CFM with indoor sound levels listed at 34–42 dB(A) across fan settings for comfort-focused ducted operation.
- R454B refrigerant piping flexibility: Factory pre-charge is 3 lb 4 oz with up to 25 ft pre-charged length, plus 100 ft maximum piping length and 100 ft maximum height difference.
- Outdoor coil protection features: Blue Fin coating and Seacoast Protection are specified to help protect the outdoor heat exchanger in corrosive airborne conditions.
Replaces Discontinued Models
- SUZ-AA36NL replaces: SUZ-KA36NA2
- PEAD-AA36NL replaces: PEAD-A36AA, PEAD-A36AA4, PEAD-A36AA5, PEAD-A36AA7, PEAD-A36AA8, PEAD-A36AA9
Replacement matches are based on unit type, capacity and features. Verify line set, electrical supply and controls before ordering. See the discontinued Mitsubishi model cross-reference for details and original manuals.
White Paper
- Mitsubishi PEAD-AA36NL + SUZ-AA36NL System Spec Sheet
- Mitsubishi PEAD-AA36NL Spec Sheet
- Mitsubishi PEAD-AA Series Installation Manual
- Mitsubishi PEAD-AA Series Operation Manual
- Mitsubishi SUZ-AA Series Installation Manual
- Mitsubishi SUZ-AA Series Operation Manual
- Mitsubishi SUZ-AA Series Service Manual
