OS-RMS42-230VO
Olmo · mini-split heat pump
OS-RMS42-230VO is in the certified data as of Sep 19, 2026.
- 42,000 Btu (3.5-ton)
- Mini-split
OS-RMS42-230VO (Olmo) has the same certified figures as GRID48OM5 (Gridless). See the full figures, the performance chart, and a comparison with other units here:
GRID48OM5 (main listing for OS-RMS42-230VO)
Certified pairings and AHRI numbers
1 certified pairing
| AHRI certificate | Indoor unit | Furnace | Certified | At 5°FBtu/h | At 47°FBtu/h | At 95°FBtu/h · cooling |
|---|---|---|---|---|---|---|
| 217739003 | — | No furnace | Jan 14, 2026 | 36,000 | 48,000 | 42,000 |
Model numbers with these certified figures
- GRID48OM5Gridless
- OS-RMS42-230VO · this pageOlmo