PROmetheus Centrifugal Chiller
Model: Dunham-Bush DCLC-M PROmetheus | Brand: Dunham-Bush
The highest-efficiency chiller in the Dunham-Bush range — magnetic bearing centrifugal compressor with VFD, delivering exceptional IPLV. 18 models, AHRI certified with R134a.
Quick Specification
- Cooling Capacity90 to 680 RT (316 to 2,391 kW)
- Number of Models18 models
- Compressor TypeMagnetic Bearing Centrifugal
- DriveVariable Frequency Drive (VFD)
- RefrigerantR134a (ODP = 0)
- Power Supply380–415V / 3Ph / 50Hz
Product Description
The PROmetheus Series DCLC-M represents the pinnacle of chiller technology available in Bangladesh — a magnetic bearing centrifugal compressor chiller that delivers exceptional energy efficiency at both full-load and part-load conditions. Cooltech Corporation is the authorised supplier and installer of the Dunham-Bush PROmetheus in Bangladesh.
Magnetic bearing technology eliminates mechanical contact between rotating components, removing the need for lubrication oil in the refrigerant circuit. This results in superior heat exchanger performance, reduced maintenance requirements, and outstanding longevity. The Variable Frequency Drive (VFD) precisely matches compressor output to the building's actual cooling demand, delivering IPLV values above 8.0 — exceptional even by global standards.
With 18 models from 90 to 680 RT (316 to 2,391 kW) and AHRI certification with R134a refrigerant, the PROmetheus is the preferred specification for government buildings, large hospitals, luxury hotels, and any project where energy efficiency is a primary design criterion.
Key Features
- ✓ 18 Models: 90 to 680 RT (316 to 2,391 kW)
- ✓ High Efficiency Magnetic Bearing Centrifugal Compressor
- ✓ Variable Frequency Drive (VFD) for Superior Part-Load Performance
- ✓ Oil-Free Compressor — No Lubrication Oil in Refrigerant Circuit
- ✓ AHRI Certified and Meets/Exceeds ASHRAE 90.1 with R134A
- ✓ Outstanding IPLV Energy Efficiency (up to 8.0+)
- ✓ Advanced Energy Saving Control
- ✓ Reduced Maintenance vs Conventional Centrifugal Chillers
- ✓ R134a Refrigerant (ODP = 0)
- ✓ Suitable for Bangladesh Power Infrastructure (50Hz)
Technical Specifications
Full specification for the Dunham-Bush DCLC-M PROmetheus. Contact Cooltech's engineering team for duty-point selection, electrical single-line diagrams, and project-specific documentation.
| Parameter | Specification |
|---|---|
| Cooling Capacity | 90 to 680 RT (316 to 2,391 kW) |
| Number of Models | 18 models |
| Compressor Type | Magnetic Bearing Centrifugal |
| Drive | Variable Frequency Drive (VFD) |
| Refrigerant | R134a (ODP = 0) |
| Power Supply | 380–415V / 3Ph / 50Hz |
| COP (Full Load) | 6.1 – 7.0 |
| IPLV | 8.0+ |
| Chilled Water Temperature (In/Out) | 12°C / 7°C (standard) |
| Condenser Water Temperature (In/Out) | 30°C / 35°C (standard) |
| Sound Level | 68 – 74 dBA @ 1m (lowest in class) |
| Number of Refrigerant Circuits | 1 circuit |
| Lubrication | Oil-Free (Magnetic Bearing) |
| Certifications | AHRI, ASHRAE 90.1 |
Typical Applications
Why Choose Cooltech Corporation
Authorised Supplier
Official Bangladesh distributor for Dunham-Bush, Zeus, Achelous, and Samsung HVAC equipment.
Full Installation Service
From site survey and load calculation to installation, commissioning, and handover — fully managed.
AMC & Maintenance
Annual Maintenance Contracts available for all supplied equipment with rapid response engineering support.
Expert Engineering Team
ASHRAE-trained engineers available for free consultation on system selection and design.