Universal Floor/Ceiling + Regular Outdoor • R454B • 208–230V
Cooper&Hunter 18,000 BTU Single Zone Universal Floor/Ceiling Minisplit Heat Pump System R454B 230V
Overview
This system pairs the CH-RSH18MFC Universal Floor/Ceiling indoor unit with the CH-RES18-230VO Regular single-zone outdoor unit. The indoor unit supports horizontal ceiling or vertical wall installation for layout flexibility, plus built-in smart control capability, humidity sensing, and refrigerant sensing. The Regular outdoor unit delivers efficient inverter heating and cooling with heating ambient operation listed to -13°F.
Highlights
- Universal mounting options: ceiling-suspended or wall-mounted orientation to fit the space.
- Smart control support via built-in smart kit and app connectivity (setup required).
- Efficient inverter outdoor operation for stable temperatures and day-to-day savings.
System Search
Line Set Size
1/4" Liquid • 1/2" Gas
Max Line Length
98.4 ft
Voltage
208–230V (187–253V)
Outdoor Rated BTU
18,000
Outdoor AHRI
207742320
What’s Included
- Universal floor/ceiling indoor unit: CH-RSH18MFC
- Regular outdoor condenser: CH-RES18-230VO
- Included remote control + wall thermostat support
- Built-in smart kit capability for app control (setup required)
Indoor Specs (CH-RSH18MFC)
| Spec | Value |
|---|---|
| Rated V-Ph-Hz | 208/230 • 1 • 60 |
| Cooling / Heating | 18,000 / 18,000 BTU/h |
| Minimum Circuit Ampacity (MCA) | 1.9A |
| Max Fuse | 15A |
| Indoor Air Flow (Turbo/Hi/Mi/Lo) | 576.6 / 574.5 / 485.6 / 428.0 CFM |
| Noise (Hi/Mi/Lo/Si) | 43.0 / 40.0 / 32.0 / 29.0 dB(A) |
| Dimensions (W×D×H) | 42.0 × 26.5 × 7.9 in |
| Packing (W×D×H) | 45.0 × 29.7 × 12.5 in |
| Net / Gross Weight | 58.42 / 70.55 lb |
| Operating Range | Cooling: 60–90°F • Heating: 32–86°F |
| Line Set | 1/4" Liquid • 1/2" Gas |
Outdoor Specs (CH-RES18-230VO)
| Spec | Value |
|---|---|
| Refrigerant Type | R454B |
| Rated BTU | 18,000 |
| SEER2 / EER2 | 20 / 12.5 |
| Cooling Capacity (Min/Max) | 17,000 (7,000–19,000) BTU/h |
| Heating Capacity (Min/Max) | 20,000 (5,500–22,000) BTU/h |
| HSPF2 (Region V / IV) | 8.2 / 10.5 |
| Ambient Temperature | Cooling: -13–122°F • Heating: -13–75°F |
| Max Pipe Length / Height Difference | 98.4 ft / 65.6 ft |
| Dimensions (W×D×H) | 35.04 × 13.46 × 26.5 in |
| Net / Gross Weight | 92.59 / 100.31 lb |
| MCA / Max Fuse | 18A / 20A |
| AHRI | 207742320 |
Documents & Downloads
- System Submittal (This Combination): CH-RES18-230VO + CH-RSH18MFC
- Outdoor Manuals
- Installation Manual — R454B Outdoor Units
-
UFC Leaflet (R454B)
- Indoor Manuals
- Installation Manual
- UFC Leaflet (R454B)
- Owners Manual
- Outdoor Submittals (CH-RES18-230VO)
- CH-RES18-230VO + CH-PRO18MASTWM-230VI
- CH-RES18-230VO + CH-RH18MASTWM-230VI
- CH-RES18-230VO + CH-RS18MDT-MS
- CH-RES18-230VO + CH-RSH18MCT
- CH-RES18-230VO + CH-RH18MCT
Important
- Use the specified line set size: 1/4" liquid and 1/2" suction (gas).
- Confirm circuit sizing and breaker/fuse selection per MCA and local code.
- Support: hvacsupplies.com/pages/contact • (800) 543-8933
FAQs
Can the indoor unit be installed on the ceiling or wall?
Yes. The CH-RSH18MFC supports ceiling (horizontal) or wall (vertical) installation.
How cold can this Regular system heat?
The outdoor unit’s heating ambient range is listed to -13°F.
What control options are supported?
Smart kit/app capability (setup required), included remote control, and wall thermostat support.














































































