OLMO Multi-Sierra Outdoor Condenser • R410A • 230V • Multi-Zone Heat Pump
OLMO Multi-Zone Outdoor Condenser — 24,000 BTU • OS-MSR24-230VO
Inverter heat pump outdoor unit for up to 3 independent zones, designed to pair with Olmo Multi-Sierra wall-mounted indoor units.
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Overview
The OS-MSR24-230VO is a 24,000 BTU multi-zone outdoor condenser for the Olmo Multi-Sierra platform. It supports up to 3 independent zones using compatible Multi-Sierra wall-mounted indoor units. This unit is an inverter heat pump designed to deliver both cooling and heating performance with efficiency ratings listed up to 22 SEER2.
Highlights
24,000 BTU (Nominal) R410A Multi-Zone (Up to 3 Zones) Inverter Heat Pump SEER2 Up To 22 EER2 Up To 12.5 HSPF2-4 11.21 Low Ambient Heat to -13°F
- Three-zone flexibility: Built for Multi-Sierra combinations in up to 3 independent zones.
- Efficient performance: Ratings listed up to 22 SEER2 and 12.5 EER2.
- Cold-weather heating: Heating ambient range listed as -13 to 75.2°F.
- Long-run piping support: Max pipe length listed as 66/197 ft (as provided).
ModelOS-MSR24-230VO
System TypeMulti-zone Outdoor
ZonesUp to 3
Sound59 dB(A)
What's Included
- Outdoor condenser unit: OS-MSR24-230VO
Outdoor Specs
| Spec | Details |
|---|---|
| Model | OS-MSR24-230VO |
| Refrigerant Type | R410A |
| System Type | Multi-zone unit |
| Cooling Capacity (Nominal) | 24,000 |
| Heating Capacity @ 47°F | 24,000 |
| Power Source | 208–230V, 1Ph, 60Hz |
| Voltage Range | 198–253 V |
| SEER2 (Up To) | 22 |
| EER2 (Up To) | 12.5 |
| HSPF2-5 | 9.17 |
| HSPF2-4 | 11.21 |
| COP | 3.66 |
| Refrigerant Piping (Liquid / Gas) | 1/4" / 3/8" |
| Max Pipe Length (ft) | 66 / 197 |
| Max Height Difference (Indoor ↔ Outdoor) | 15 |
| Refrigerant Precharge | 25 |
| Additional Refrigerant Charge (3/8" liquid) | 0.16 |
| Additional Refrigerant Charge (1/4" liquid) | 0.16 |
| Outdoor Noise Level | 59 dB(A) |
| Outdoor Air Flow | 2.35 |
| Minimum Circuit Ampacity (MCA) | 25 |
| Max Fuse | 30 |
| Ambient Temp Range (Heating) | -13 to 75.2°F |
| Ambient Temp Range (Cooling) | 14 to 114.8°F |
| Unit Dimensions (W×H×D) | 37-3/8 × 33 × 13-3/8 in |
| Unit Net / Gross Weight | 158.7 / 169.5 lb |
| Packing Dimensions (W×D×H) | 43-3/4 × 18-1/8 × 36-1/4 |
Videos
Documents & Downloads
- Multi-SIERRA ODU — User & Installation Manual (PDF)
- Olmo MultiSierra — Leaflet 2024 (PDF)
- OLMO Catalog 2024 (PDF)
Note: One provided document title duplicates the Leaflet entry; both links are included as given.
Important
Installed by a licensed HVAC professional. This is a multi-zone outdoor heat pump intended for use with compatible Olmo Multi-Sierra indoor units. Confirm electrical requirements, allowed piping lengths/height differences, and line sizes before ordering. Additional refrigerant may be required for runs beyond the factory precharge.
FAQs
How many zones can this outdoor unit support?
Up to 3 independent zones with compatible Olmo Multi-Sierra wall-mounted indoor units.
Is this a heat pump?
Yes. It is listed as a heat pump with inverter technology.
What refrigerant does it use?
R410A.
What are the efficiency ratings?
Listed up to 22 SEER2, 12.5 EER2, and 11.21 HSPF2-4.
What ambient temperatures can it operate in?
Heating: -13 to 75.2°F. Cooling: 14 to 114.8°F.
Does it have AHRI certification?
Yes. AHRI reference number: 214584775 (directory link provided).
