Rex Series R454B Wall Split 3D DC Inverter, North America
The Rex Series R454B wall split is the North American 60 Hz model of the residential range, with a 3D DC inverter drive, capacities from 12,000 BTU to 24,000 BTU and a product-centre title describing SEER2 23–24 performance.
Illustrative diagram. Capacity figures are taken from the specification table on this page.
Figures on this page are listed figures. Confirm any flagged figure before ordering.
What this model is
The listed capacity range runs from 12,000 BTU to 24,000 BTU for both cooling and heating, which means this model is presented as a range rather than a single capacity point. A buyer should therefore state the capacity step needed, because the listing's range does not pick a step for them. The power supply is listed as 208–230 V at 60 Hz, the North American supply pattern, and the product-centre title describes the model as an E-Star SEER2 23–24 unit designed for North America. SEER2 is the North American seasonal efficiency rating, and it must not be converted into or compared with a European A+++ label: the two systems measure different things under different conditions, and the efficiency guide on this site explains why that conversion is not valid.
Control is listed as remote control as standard with smart app control as optional, and filtration as top-opened, high density filters, with the golden anticorrosive heat exchanger description. The listed EER for cooling is 13 BTU per watt-hour and the listed COP for heating is 3.81 watts per watt — figures that belong to this model's listing and that use the North American EER unit convention, which is why the EER number looks different from the watt-per-watt ratios on the 50 Hz models. The warranty row is 36 months for units and six years for the compressor. The model identifier listed is KWSM-12IR454BHS23LR. Quoting that identifier together with the capacity step avoids confusion with the other R454B model in the range, the SEER2 24 split inverter, which is a separate listing with its own specification table.
Specifications as listed
| Model | KWSM-12IR454BHS23LR |
|---|---|
| Rated cooling capacity | 12000 BTU–24000 BTU |
| Rated heating capacity | 12000 BTU–24000 BTU |
| Type | Wall Split Type 3D DC Inverter 60Hz |
| Power supply | 208v-230V 60Hz |
| Control | Remote (Standard) / Smart App (Optional) |
| Filter | Top-Opened Filters, High Density Filters |
| Heat exchangers | Golden Anticorrosive Technology |
| Warranty | 36 months for units / 6 years for compressor |
| EER cooling | 13 Btu/W.h |
| COP heating | 3.81 W/W |
Where this model fits
This model is described for North America, and its 60 Hz supply, R454B refrigerant and SEER2 title all point the same way. Distributors and agents in the United States and Canada who need a 60 Hz R454B wall split should start here, and should state the capacity step and the certification documents their market requires in the first inquiry. Buyers in 50 Hz markets should not shortlist this model on capacity alone, because its listed supply is 60 Hz.
What to confirm in your inquiry
Before placing an inquiry, list the following so the model can be matched without repeated rounds of questions: required capacity, power supply voltage and frequency at the installation site, control preference (remote control or smart app control where listed), quantity per capacity, destination market, and any certification documents you need for import. State whether you need a sample first, and state the delivery window you are working toward. Certificates are available upon request, so ask for the exact documents your market requires rather than assuming a certificate covers a shipment.
- Capacity and quantity per capacity
- Voltage and frequency at the installation site
- Control preference where the listing offers a choice
- Destination market and certification documents needed
- Sample requirement and target delivery window
Attribution note. Brand and product descriptions on this page follow the Kanion Co brand presentation. Where a fact comes from the company profile, it is stated as such. Production and group facts are presented under Kanion Group attribution, not as the capacity of a single company unit. Certificates available upon request.