LG KUSXA422A
EPA category: Split System · 3.5-ton class · variable-speed · R-32 (GWP:675 | Lower GWP)
Model number as listed: KUSXA422A
Among the 38 rated 3.5-ton split systems on this site, the LG KUSXA422A lists the highest share of 47°F capacity kept at 5°F and the joint highest heating capacity at 5°F. The KUSXA422A also lists the second-highest HSPF2 and the joint highest SEER2. The next-highest share of 47°F capacity kept at 5°F belongs to the Rheem RD18AY48AJVC.
Place in the 3.5-ton class
EPA cold-climate designation: Yes, for all 3 certified matches. About the designation.
Its neighbors at 5°F
| Product | Kept at 5°F | Output, Btu/h | COP at 5°F | HSPF2 |
|---|---|---|---|---|
| LG KUSXA422A | 100% | 46,000 | 2.00 | 9.8 |
| Rheem RD18AY48AJVC | 94% | 38,000 | 2.20 | 10 |
| 1HVAC ACIQ-42-HPD | 92% | 46,000 | 1.90 | 9.5 |
| Hisense AUWR-48U3SP | 82% | 34,600 | 1.94 | 8.55 |
| Daikin DZ6VSA421EA | 76% | 30,600 | 2.20 | 8.6 |
| Daikin DH7VSA4210A | 76% | 31,000 | 2.00 | 8.8 |
| Rheem RD16AY48AJVC | 60% | 25,800 | 2.00 | 8.5 |
| Friedrich FRP15AZ42AJ2N | 57% | 23,000 | 2.40 | 8.1 |
| Lennox ML17XP1-042-230A | 57% | 22,000 | 2.22 | 8.3 |
Top of the 3.5-ton class on Output at 5°F
| Place | Product | Output at 5°F |
|---|---|---|
| joint 1st | 1HVAC ACIQ-42-HPD | 46,000 Btu/h |
| joint 1st | LG KUSXA422A | 46,000 Btu/h |
| 3rd | Rheem RD18AY48AJVC | 38,000 Btu/h |
| 4th | Hisense AUWR-48U3SP | 34,600 Btu/h |
| 5th | Daikin DH7VSA4210A | 31,000 Btu/h |
Its certified matches (3)
Every top figure on this page comes from one of them, with indoor unit KNSLB421A (AHRI reference 215735573). The lowest of them lists SEER2 16, HSPF2 8.9 and 91% at 5°F.
Certified as of October 27, 2026; on the market since 2024-12.