Review
The Mitsubishi H2i five-zone heat pump system delivers performance-focused climate control for contractors accustomed to navigating complex multi-zone installations. This 42,000 BTU cooling capacity unit (3.5 ton equivalent) targets homeowners upgrading from traditional forced-air systems or older mini-split networks. The Hyper Heat designation signals aggressive winter performance with 32,000 BTU heating output, addressing a significant weakness in conventional heat pump technology for colder regions.
Efficiency metrics stand out immediately, with 21.5 SEER2 and 13.4 EER ratings positioning this system above standard equipment benchmarks. The five-zone configuration accommodates zone splits of 6, 9, 9, 9, and 12 thousand BTU, allowing precise distribution across different rooms. Operating noise spans 19-45 dBA depending on settings, with CFM ranging 109-399 to match varied installation demands. The 0.38 gal/hr dehumidification rate handles moderate moisture removal adequately for humid climates.
Pros & Cons
Pros
- 21.5 SEER2 efficiency rating delivers substantial energy savings versus standard systems, translating to lower monthly operating costs
- 32,000 BTU heating output with Hyper Heat technology handles cold climates better than conventional heat pumps
- Five-zone configuration with 6+9+9+9+12 capacity distribution allows precise temperature control across multiple rooms or zones
- Wireless controller included, eliminating retrofit wiring complications and improving user convenience
- Wide CFM range of 109-399 CFM provides flexible airflow matching for different room sizes and layouts
- Single-phase 230V electrical requirement simplifies installation on standard residential circuits
Cons
- R410A refrigerant is being phased out in favor of more climate-friendly alternatives, limiting long-term serviceability
- Specification sheet contains dimensional errors, height and width listed as 0.5 inches rather than practical measurements, raising documentation quality concerns
- Price listed as $0 makes cost comparison impossible, though Mitsubishi multi-zone systems typically command premium pricing
Who Should Buy
Best For
Contractors installing multi-zone systems in homes with 3,500 to 5,000 square feet and homeowners in climates requiring both robust cooling and meaningful heating performance. This system suits buyers prioritizing efficiency ratings and zone-level temperature control over budget constraints.
Consider Alternatives If
Budget-conscious homeowners or single-zone applications should explore simpler two-zone alternatives, as the five-zone complexity adds cost without proportional benefit for smaller spaces.
Installation
Installation requires 230V single-phase 60Hz service with 40-45 amp breaker sizing, standard for residential applications. Refrigerant lines use 5/8 inch suction and 3/8 inch liquid connections with 15-foot length capacity. The wireless controller eliminates thermostat wiring, reducing labor time significantly. Wall-mounted indoor units position easily, though five-zone ducting or multi-head coordination demands experienced installer expertise.
Warranty & Reliability
Five-year parts warranty covers manufacturing defects and component failure, typical for Mitsubishi equipment. This period protects against early failures but doesn't extend to refrigerant leaks or wear items. Homeowners should verify local dealer support for claims processing, as warranty value depends on regional service network availability.
Specifications
| SKU | 201813 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 32,000 |
| Refrigerant | R410A |
| Electrical | 230 V. 1 Phase 60 Hz |
| BTU/Tonnage | 42,000 BTU/3.5 Ton |
| Mini Split Type | Wall Mounted |
| Zone Compatibility | Multi Zone |
| Warranty | 5 Years Parts Warranty |
| Decibel Level (dBA) | 19-45 |
| Weight (in lbs) | 15.000000 |
| Feature | Spec |
| Controller | Wireless Included |
| Additional Information | Drain: 5/8" |
| Maximum CFM | 109-399 CFM |
| Capacity | Dehumidification Rate: 0.38 gal/hr |
| Liquid Line | 3/8" |
| Suction Line | 5/8" |
| Operating Mode | Cooling, Heating |
| Height | 1/2" |
| Width | 1/2" |
| Depth | 38" |
| Resources | HW-600 Install Guide You will need Adobe® Acrobat® Reader to view PDF documents. |
| Safety Information | PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here. |
| Phase | Single Phase |
| Replaces | MXZ-5C42NAHZ2 |
| Product Features | Hyper Heat |
| SEER2 (Efficiency) | 21.5 |
| EER | 13.4 |
| Max Breaker Size | 45 amps |
| Min. Breaker Size | 40 |
| Amperage Requirement | 50 |
| Length | 15' |
Frequently Asked Questions
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