Comfort At Work: Q&A: 23XL Hermetic Screw Chiller


What is the capacity range of the 23XL screw chiller What is the capacity range of the 23XL screw chiller?

The 23XL is available in capacities from 150 to 350 tons where 60Hz power is available; 130-300 tons in 50Hz areas.

What is the efficiency range of the 23XL What is the efficiency range of the 23XL?

At ARI (Air-Conditioning and Refrigeration Institute) standard conditions, the efficiency of the 23XL ranges from 0.59 to 0.67 kW/ton (0.168 to 0.191 kW/kW) at full load, and 0.52 to 0.60 kW/ton (0.151 to 0.174 kW/kW) Integrated Part Load Value (IPLV).

What refrigerant does the 23XL use What refrigerant does the 23XL use?

The 23XL is a positive pressure design utilizing either refrigerant HCFC-22 or HFC-134a.

What is the sound level of the 23XL What is the sound level of the 23XL?

With sound levels for an untreated machine as low as 85 dBA, the 23XL may be the quietest screw chiller in the industry. And the availability of an optional sound kit makes the 23XL ideal for acoustically demanding applications.

Will the 23XL fit into my existing building energy management system (EMS) Will the 23XL fit into my existing building energy management system (EMS)?

Yes, the 23XL will accept a start/stop signal from an EMS without additional hardware requirements. Additional energy management functions can be easily achieved with the addition of an inexpensive optional interface.

Does Carrier offer performance testing for the 23XL Does Carrier offer performance testing for the 23XL?

Yes, both customer witnessed and Carrier certified performance testing is available. But you should also be aware that the performance of the 23XL is ARI certified. This certification is maintained through a stringent program of independently witnessed periodic testing.

What quality assurances do you offer for the 23XL What quality assurances do you offer for the 23XL?

The 23XL is Underwriters Laboratories (UL) listed (CUL for Canada). Also, the refrigerant side of the machine is built in accordance with ASME requirements, assuring pressure vessel integrity. And, it is built in Carrier's ISO9001 listed manufacturing facility.

Can the 23XL be used in thermal storage applications Can the 23XL be used in thermal storage applications?

Yes, the 23XL compressor design features an optional variable compression ratio control for optimized dual-duty applications.

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