One-Way Cassette + Regular Outdoor • 18K • R454B • 208–230V
Cooper&Hunter 18,000 BTU Single Zone One-Way Cassette Minisplit Heat Pump System R454B 230V
Overview
This system pairs the CH-RSH18MCT1W one-way ceiling cassette with the CH-RES18-230VO Regular single-zone outdoor unit. The cassette is built for between-joist installation and includes a built-in condensate pump plus a built-in circuit breaker. The Regular outdoor unit provides efficient inverter heating and cooling with heating ambient operation listed to -13°F.
Highlights
R454B Refrigerant Inverter Comfort Control Built-In Condensate Pump Humidity + Refrigerant Sensors Smart Kit + Remote + Wall Thermostat 1/4" / 1/2" Line Set
- Between-joist cassette format for clean ceiling integration.
- Steady temperatures with inverter-driven modulation.
- High-efficiency option for 18K single-zone comfort.
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
- Indoor one-way cassette: CH-RSH18MCT1W
- Outdoor condenser (Regular): CH-RES18-230VO
- Included remote control + wall thermostat support
- Built-in smart kit capability for app control (setup required)
- Built-in condensate pump (indoor)
Video title (not linked): Cooper&Hunter’s One Way Cassette
Indoor Specs (CH-RSH18MCT1W)
| Spec | Value |
|---|---|
| Refrigerant Type | R454B |
| BTU Rated | 18,000 |
| SEER2 / EER2 | 20.6 / 12.5 |
| Power | 208–230V • 1Ph • 60Hz (187–253V) |
| Dehumidification | 4.33 pints/day |
| Indoor Airflow | 400.2 / 352 / 300.2 / 207.2 |
| Noise (H/M/L) | 44 / 41.5 / 31 |
| Dimensions (W×D×H) | 50.31 × 13.19 × 8.98 in |
| Net / Gross Weight | 45.19 / 82.45 |
| Line Set | 1/4" Liquid • 1/2" Gas |
| Drain Pipe Diameter | 3/4" |
| Operating Range | Cooling: 60–90°F • Heating: 32–86°F |
| MCA / Max Fuse | 3A / 15A |
| Packing (W×D×H) | 57.60 × 22.48 × 22.64 in |
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 |
| COP | 3.47 |
| Ambient Temperature | Cooling: -13–122°F • Heating: -13–75°F |
| Max Pipe Length / Height Difference | 98.4 ft / 65.6 ft |
| Outdoor Air Flow | 1,765.8 |
| Noise | 59 |
| Dimensions (W×D×H) | 35.04 × 13.46 × 26.50 in |
| Net / Gross Weight | 92.59 / 100.31 |
| MCA / Max Fuse | 18A / 20A |
| Additional Charge (1/4" liquid) | 0.16 |
| AHRI | 207742320 |
Documents & Downloads
- System Submittal (This Combination): CH-RES18-230VO : CH-RSH18MCT1W
- Indoor Manuals
- CH-18MCT1W-230VI + CH-HPR18-230VO (PDF)
- CH-18MCT1W-230VI + CH-ES18-230VO (PDF)
- Remote Controller Manual
- Owner’s Manual — One-Way Cassette
- One-Way Cassette Leaflet (R454B)
- Outdoor Manuals
- Installation Manual — R454B Outdoor Units
- SlimDuct Leaflet (R454B)
- Other Reference PDFs
- MultiZone Combination — Hyper
- MultiZone Combination — Regular
- Additional Indoor Submittals (Other compatible pairing)
- CH-RHP18-230VO : CH-RSH18MCT1W
- 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-RSH18MFC
- 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
What line set size is required?
1/4" liquid and 1/2" suction (gas).
How cold can this Regular system heat?
The outdoor unit’s heating ambient range is listed to -13°F.
Does the indoor unit include a condensate pump?
Yes — the CH-RSH18MCT1W includes a built-in water pump.
