GrandAire W5H5S42AKAAA 3.5 Ton 14.3 SEER2 Heat Pump Condensing Unit, 208-230V/1-Phase/60Hz, R-454B
The GrandAire W5H5S42AKAAA is a 3.5-ton heat pump condensing unit ā the outdoor half of a split system designed to pair with a matched indoor coil and air handler or furnace. It is rated at 14.3 SEER2 on R-454B refrigerant.
Key specifications include a scroll compressor, 7/8" suction and 3/8" liquid line connections, 208-230V 1-Phase 60Hz power.
Match the unit to an AHRI-certified indoor coil for rated performance. Confirm line-set sizing, electrical service, and refrigerant before ordering.
Specifications
| Nominal Capacity (Tons) | 3.5 |
| SEER2 | 14.3 |
| EER2 | 10, 12.5 |
| System Type | Heat Pump |
| Refrigerant | R-454B |
| Voltage | 208-230 VAC |
| Phase | Single |
| Compressor | Scroll |
| Suction Line OD | 7/8" |
| Liquid Line OD | 3/8" |
| Condenser FPI | 20 |
| ENERGY STAR | Yes |
| Cabinet Color | White |
Why GrandAire
GrandAire, distributed through Watsco, covers registered equipment with a 10-year limited parts warranty and a 10-year limited compressor warranty, plus a 1-year unit replacement warranty on qualifying models (registration required within 90 days).
Product Information
Product Information
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Shipping & Returns

GrandAire W5H5S42AKAAA 3.5 Ton 14.3 SEER2 Heat Pump Condensing Unit, 208-230V/1-Phase/60Hz, R-454B
GrandAire W5H5S42AKAAA 3.5 Ton 14.3 SEER2 Heat Pump Condensing Unit, 208-230V/1-Phase/60Hz, R-454B
The GrandAire W5H5S42AKAAA is a 3.5-ton heat pump condensing unit ā the outdoor half of a split system designed to pair with a matched indoor coil and air handler or furnace. It is rated at 14.3 SEER2 on R-454B refrigerant.
Key specifications include a scroll compressor, 7/8" suction and 3/8" liquid line connections, 208-230V 1-Phase 60Hz power.
Match the unit to an AHRI-certified indoor coil for rated performance. Confirm line-set sizing, electrical service, and refrigerant before ordering.
Specifications
| Nominal Capacity (Tons) | 3.5 |
| SEER2 | 14.3 |
| EER2 | 10, 12.5 |
| System Type | Heat Pump |
| Refrigerant | R-454B |
| Voltage | 208-230 VAC |
| Phase | Single |
| Compressor | Scroll |
| Suction Line OD | 7/8" |
| Liquid Line OD | 3/8" |
| Condenser FPI | 20 |
| ENERGY STAR | Yes |
| Cabinet Color | White |
Why GrandAire
GrandAire, distributed through Watsco, covers registered equipment with a 10-year limited parts warranty and a 10-year limited compressor warranty, plus a 1-year unit replacement warranty on qualifying models (registration required within 90 days).
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The GrandAire W5H5S42AKAAA is a 3.5-ton heat pump condensing unit ā the outdoor half of a split system designed to pair with a matched indoor coil and air handler or furnace. It is rated at 14.3 SEER2 on R-454B refrigerant.
Key specifications include a scroll compressor, 7/8" suction and 3/8" liquid line connections, 208-230V 1-Phase 60Hz power.
Match the unit to an AHRI-certified indoor coil for rated performance. Confirm line-set sizing, electrical service, and refrigerant before ordering.
Specifications
| Nominal Capacity (Tons) | 3.5 |
| SEER2 | 14.3 |
| EER2 | 10, 12.5 |
| System Type | Heat Pump |
| Refrigerant | R-454B |
| Voltage | 208-230 VAC |
| Phase | Single |
| Compressor | Scroll |
| Suction Line OD | 7/8" |
| Liquid Line OD | 3/8" |
| Condenser FPI | 20 |
| ENERGY STAR | Yes |
| Cabinet Color | White |
Why GrandAire
GrandAire, distributed through Watsco, covers registered equipment with a 10-year limited parts warranty and a 10-year limited compressor warranty, plus a 1-year unit replacement warranty on qualifying models (registration required within 90 days).












