Cooper&Hunter Hyper Multi-Zone Outdoor • R454B • Multi-Zone
Cooper&Hunter Hyper Multi-Zone Outdoor — 28,000 BTU, R454B — CH-R28MES-230VO
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Overview
Cooper&Hunter’s 28K BTU Hyper Multi-Zone outdoor unit is a highly adaptable, efficient system built to deliver personalized comfort across residential spaces. Supporting up to four zones, it enables independent temperature control in multiple rooms. Advanced inverter technology dynamically adjusts compressor output to match demand, optimizing energy use while maintaining reliable performance. With up to 25 SEER2 efficiency and R454B refrigerant (lower GWP vs. many conventional options), it’s a strong fit for modern, eco-conscious multi-zone installations.
Highlights
27,000 BTU cool (7,200–32,000)
27,000 BTU heat (8,400–29,000)
Up to 4 zones
SEER2 25 · EER2 13
HSPF2 9.5 (Region IV) · 7.4 (Region V)
COP 3.8
R454B
208–230V 1Ph
−13–122 °F cool · −13–75 °F heat
- Multi-zone flexibility: supports up to 4 independent zones with compatible indoor units.
- High efficiency: up to 25 SEER2 for strong seasonal energy savings.
- Inverter performance: dynamic compressor modulation for stable comfort and reduced operating cost.
- Eco-forward refrigerant: uses R454B to reduce environmental impact.
- Compact & install-friendly: space-efficient footprint helps with tighter placements.
ModelCH-R28MES-230VO
ZonesUp to 4
Outdoor Sound61 dB(A)
Lines4× 1/4″ liquid · (3× 3/8″ + 1× 1/2″) gas
What's Included
- Outdoor unit CH-R28MES-230VO
- Owner / installation documentation
Pair only with compatible Cooper&Hunter Hyper Multi-Zone indoor units. Confirm zone combinations and piping requirements before installation.
Indoor Specs
| Spec | Details |
|---|---|
| System type | Multi-zone unit (outdoor) |
| Zones supported | Up to 4 independent zones (depends on indoor unit selection) |
| Compatible indoor units | Cooper&Hunter Hyper Multi-Zone indoor units (zone mix varies by combination) |
| Refrigerant piping (per zone) | 4 circuits total: 4× 1/4″ liquid; gas connections are 3× 3/8″ + 1× 1/2″ |
| Max height difference (IDU↔ODU) | 49.2 ft |
| Combination guidance | Use the provided Multi-Zone Combination PDFs to confirm valid indoor mixes |
Indoor-unit capacities, features, and controls depend on the specific indoor models selected for each zone.
Outdoor Specs
| Spec | Details |
|---|---|
| Model | CH-R28MES-230VO |
| Refrigerant type | R454B |
| Power source | 208–230V, 1Ph, 60Hz |
| Voltage range | 187–253 V |
| Cooling capacity (Min/Max) | 27,000 BTU/h (7,200–32,000) |
| Heating capacity (Min/Max) | 27,000 BTU/h (8,400–29,000) |
| SEER2 / EER2 | 25 / 13 |
| HSPF2-4 / HSPF2-5 | 9.5 / 7.4 |
| COP | 3.8 |
| Minimum circuit ampacity (MCA) | 23 A |
| Max fuse | 25 A |
| Outdoor Air Flow | 2,130.7 CFM |
| Outdoor Noise Level | 61 dB(A) |
| Dehumidification | 1.69 pints/day |
| Unit dimensions (W×H×D) | 37.24 × 16.14 × 31.89 in |
| Packing dimensions (W×D×H) | 42.91 × 19.68 × 34.84 in |
| Net / Gross weight | 138.89 / 149.69 lb |
| Refrigerant precharge | 100 (factory charge) |
| Refrigerant piping (Liquid/Gas) | 4× 1/4″ liquid · (3× 3/8″ + 1× 1/2″) gas |
| Ambient temperature — Heating | −13 to 75 °F |
| Ambient temperature — Cooling | −13 to 122 °F |
| Additional refrigerant charge — 3/8″ liquid line | 0.32 |
| Additional refrigerant charge — 1/4″ liquid line | 0.16 |
Documents & Downloads
- CH-R28MES-230VO Submittal (PDF)
- CH-R28MES-230VO Submittal — Non-Ducted (PDF)
- Installation Manual — Multi-R (PDF)
- Multi-Zone Combination — HYPER (PDF)
- Multi-Zone Combination — Regular (PDF)
AHRI certification numbers (reference): Ducted 215864257 · Non-Ducted 215864258 · Mixed 215864259.
Important
Install by a licensed HVAC professional. Confirm indoor unit combinations, voltage range (187–253 V), MCA/max-fuse, refrigerant piping per zone (including the 1/2″ gas circuit), height limits, and ambient operating ranges before commissioning.
FAQs
How many zones can this support?
Up to four independent zones with compatible Cooper&Hunter Hyper Multi-Zone indoor units.
What line sizes are required?
Four circuits total: 4× 1/4″ liquid; gas connections are 3× 3/8″ plus 1× 1/2″.
What are the power requirements?
208–230 V, single-phase, 60 Hz. Voltage range 187–253 V. MCA 23 A. Max fuse 25 A.
What refrigerant does it use?
R454B.
What are the operating temperature ranges?
Cooling: −13 to 122 °F. Heating: −13 to 75 °F.
How efficient is this outdoor unit?
Rated up to 25 SEER2 and 13 EER2. HSPF2 is 9.5 (Region IV) / 7.4 (Region V).
