Cooper & Hunter 18,000 BTU Single Zone Slim Duct, 230V, R454B - Ductless Mini Split Air Conditioner Heat Pump
Cooper & Hunter7-Yr WarrantySKU: CH-RES18-230VO18DT
Product specifications
- Voltage
- 230V
- SEER
- 20.8
- WiFi
- Not Included
- Zone
- Single Zone
- Type
- Concealed Duct
- Freon
R454B
Choose Your Configuration
“No Installation Kit” ships the units only.
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Ships from the nearest of our three US warehouses, leaves in 1–2 business days. Shipping policy
COOPER & HUNTER · STANDARD
Built for year-round comfort
CH-RES18-230VO18DT
System Specs
| Cooling Capacity | 17,000 BTU/h |
|---|---|
| SEER2 | 20.0 |
| EER2 | 12.5 |
| Voltage | 230V |
| Refrigerant | R454B |
| Compressor | Inverter |
|---|---|
| Climate Range | −13–122°F / −13–75°F outdoor ambient |
| Sound Level (indoor) | 40/39/38 dB |
| Warranty | 7-Yr Compressor |
Indoor Unit Specs
| Unit Dimensions (WxDxH) | Net / Gross Weight | Remote Control |
|---|---|---|
| 34.65 × 26.54 × 8.27 in | 54.45 / 66.14 lb | Wire controller + remote controller available |
Product Description
The Cooper & Hunter 18,000 BTU (1.5 Ton) single-zone slim duct mini split is a concealed-duct air conditioner and heat pump running on next-generation R454B refrigerant. The low-profile ducted air handler hides above a ceiling or in a soffit and distributes air through short duct runs — central-air comfort with mini-split efficiency ( 20.0 SEER2, 208/230V). Heating operation continues down to −13°F outdoor ambient.
6 Modes for Maximum Comfort
Engineered to adapt to every season, every room, every need.
Maintain a comfortable indoor temperature by automatically switching between heating and cooling as needed. Ideal for year-round use.
IN THE BOX
Everything included with this system
- Cooper & Hunter 18,000 BTU Outdoor Condenser, 230V, R454B - Single Zone Mini Split Air Conditioner Heat Pump
- Indoor Concealed Duct — CH-RS18MDT-MS
WARRANTY
BACKED BY COOPER & HUNTER
Industry-leading protection on every unit
Compressor: 7-year coverage
With product registration after professional installation.
Parts & components: 5-year coverage
All major components and refrigerant circuit parts.
Technical Specifications
Outdoor Unit Specs— CH-RES18-230VO
| Model | CH-RES18-230VO |
|---|---|
| Unit Dimensions (WxDxH) | 35.04 x 13.46 x 26.5 in |
| Net/Gross Weight | 92.59/100.31 lb |
| Packing Dimensions (WxDxH) | 39.17 x 15.67 x 29.13 in |
| Power Supply | 208-230V, 1Ph, 60Hz |
| Maximum Fuse Size | 20 A |
| Min. Circuit Ampacity | 18 A |
| Copper Line Size (Liquid/Gas) | 1/4"/1/2" |
| Noise Level | 59 dB |
| Airflow | 1,764.7 CFM |
| Dehumidification | 2.96 pt/h |
Indoor Unit Specs— CH-RS18MDT-MS
| Model | CH-RS18MDT-MS |
|---|---|
| Unit Dimensions (WxDxH) | 34.65 x 26.54 x 8.27 in |
| Net/Gross Weight | 54.45/66.14 lb |
| Packing Dimensions (WxDxH) | 42.13 x 28.54 x 11.02 in |
| Power Supply | 208-230V, 1Ph, 60Hz |
| Maximum Fuse Size | 15 A |
| Min. Circuit Ampacity | 3 A |
| Copper Line Size (Liquid/Gas) | 1/4"/1/2" |
| Noise Level (Hi/Med/Lo) | 40/39/38 dB |
| Dehumidification | 3.53 pt/h |
| Filter Dimensions | 30.2x7.47 in |
| Drain Pipe Diameter | 1" |
| Controller | wire controller + remote controller available |
System Specs
| Cooling — Rated Capacity (Range) | 17,000 Btu/h (7,000–19,000) |
|---|---|
| Heating — Rated Capacity (Range) | 20,000 Btu/h (5,500–22,000) |
| SEER2 / EER2 | 20.0 / 12.5 |
| HSPF4 / HSPF5 / COP (47°F) | 10.5 / 8.2 / 3.47 |
| Rated Current (Cooling) | 6.2 A |
| Minimum Circuit Ampacity — Outdoor / Indoor | 18 A / 3 A |
| Max. Fuse — Outdoor / Indoor | 20 A / 15 A |
| External Static Pressure (ESP) | 0–0.4 in.WG (medium static, 8 fan curves) |
| Indoor Air Flow (Turbo/Hi/Mid/Lo) | 600 / 559 / 500 / 441 CFM |
| Indoor Noise Level | 40.5 / 39 / 38 / 35 dB(A) (Hi/Mid/Lo/Silent) |
| Indoor Unit Dimensions (W×D×H) | 34.65 × 26.54 × 8.27 in |
| Indoor Unit Net Weight | 54.5 lbs |
| Outdoor Air Flow (Max.) | 1,766 CFM |
| Outdoor Noise Level | 59.0 dB(A) |
| Outdoor Unit Dimensions (W×D×H) | 35.04 × 13.46 × 26.50 in |
| Outdoor Unit Net / Gross Weight | 92.6 / 100.3 lbs |
| Refrigerant Type / Charge | R454B / 47.97 oz |
| Pre-charged Line Length | 25 ft (add 0.16 oz per additional ft) |
| Line Set (Liquid / Gas) | 1/4" / 1/2" |
| Max. Pipe Length | 98.4 ft |
| Max. Elevation Difference | 65.6 ft |
| Operating Range — Cooling / Heating | −13–122°F / −13–75°F outdoor ambient |
| Drain Pump | Built-in |
Frequently asked questions.
What size mini split do I need for my space?
For spaces up to 850 sq ft, the Cooper & Hunter 18,000 BTU mini split is an ideal choice. Its cooling capacity is well-suited for medium-sized rooms, ensuring efficient temperature control.
How much does a mini split system cost?
The price of the Cooper & Hunter 18,000 BTU mini split system varies based on installation options, but you can expect competitive pricing for high-efficiency units like this one with a 20.8 SEER rating. Always consider the long-term savings on energy bills due to its efficiency.
Can I install a mini split myself?
While a DIY installation is possible for the Cooper & Hunter 18,000 BTU mini split, it is recommended to have a professional install it for optimal performance. This model requires proper handling of refrigerant and electrical connections, especially since it operates on 230V.
Does the mini split come pre-charged with refrigerant?
Yes, the Cooper & Hunter 18,000 BTU mini split comes pre-charged with R454B refrigerant for up to 25 ft of line set. This feature simplifies installation and ensures immediate functionality upon setup.
What warranty does Cooper & Hunter offer with this model?
The Cooper & Hunter 18,000 BTU mini split includes a 5-year parts warranty and a 7-year compressor warranty, provided you register the product within 30 days of purchase. This warranty coverage is a testament to the brand's commitment to quality.
What SEER rating do I need for energy efficiency?
A SEER rating of 20.8, like that of the Cooper & Hunter 18,000 BTU mini split, is excellent for energy efficiency. Higher SEER ratings indicate better cooling efficiency, which can lead to lower energy costs over time.
Manufacturer Technical Support
Reach your brand's tech support team directly
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The Cooper & Hunter 18,000 BTU (1.5 Ton) single-zone slim duct mini split is a concealed-duct air conditioner and heat pump running on next-generation R454B refrigerant. The low-profile ducted air handler hides above a ceiling or in a soffit and distributes air through short duct runs — central-air comfort with mini-split efficiency (20.0 SEER2, 208/230V). Heating operation continues down to −13°F outdoor ambient.
Key Features
- 17,000 BTU cooling / 20,000 BTU heating — inverter range 7,000–19,000 Btu/h cooling, 5,500–22,000 Btu/h heating
- 20.0 SEER2 / 12.5 EER2 / 10.5 HSPF4 — current R454B-generation ratings
- Concealed installation: external static pressure 0–0.4 in.WG (medium static, 8 fan curves) — supports real duct runs, grilles and filters
- Heats down to −13°F, cooling operation −13–122°F outdoor ambient
- Built-in condensate drain pump — simplifies above-ceiling installation
- Wired wall thermostat and IR remote included; Smart Kit built in (Wi-Fi via wall thermostat connection)
- 208/230V, 1Ph, 60Hz — MCA 18 A, max fuse 20 A
- ETL listed, AHRI certified, NEEP listed, Energy Star Cold Climate
Cooper & Hunter Single-Zone Slim Duct (R454B) Lineup
| Capacity | Model (Indoor + Outdoor) | SEER2 |
| 9,000 BTU | CH-RS06-12MDT-MS + CH-RES09-230VO | 19.5 |
| 12,000 BTU | CH-RS06-12MDT-MS + CH-RES12-230VO | 19.0 |
| 18,000 BTU | CH-RS18MDT-MS + CH-RES18-230VO | 20.0 |
| 24,000 BTU | CH-RS24MDT-HS + CH-RES24-230VO | 19.0 |
| 36,000 BTU | CH-RS36LCDT-HS + CH-R36LCU-230VO | 18.7 |
| 48,000 BTU | CH-RS48LCDT-HS + CH-R48LCU-230VO | 17.1 |
| 60,000 BTU | CH-RS60LCDT-HS + CH-R60LCU-230VO | 17.0 |