Energy Efficient Water Cooled Screw Chillers
Overview
FIDEM Water Cooled Screw Chillers (FMWCEFS series) are engineered for high energy efficiency, continuous reliability, and precise cooling control. With semi-hermetic twin screw compressors, flooded shell & tube heat exchangers, and advanced PLC/microprocessor control, these chillers deliver stable and efficient cooling across a wide load range.
Model Series: FMWCEFS
Refrigerant: R134a
Capacity Range: 100 TR to 350 TR
Energy Efficient Water Cooled Screw Chillers
Key Features of Energy Efficient Water Cooled Screw Chillers
- Exceptional Energy Efficiency High COP/IPLV ratings through optimized system design, part-load control, and thermodynamic balance.
- Twin Screw Compressors Semi-hermetic Z/L series with modulation down to 12.5{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad} (multi-compressor units) for adaptive performance.
- Electronic Expansion Valve (EXV) Accurate refrigerant control ensures reduced cycling and higher part-load efficiency.
- Flooded Type Shell & Tube Heat Exchangers Higher heat transfer efficiency with lower water pressure drop and fouling.
- Advanced PLC/Microcontroller System
- Real-time monitoring and diagnostics
- BMS/SCADA compatible (MODBUS/BACnet)
- Touchscreen (optional), 3-tier password protection
- Trending, energy tracking, and alarm logging
Standard Scope of Supply
- Semi-hermetic Screw Compressors (Z or L Series)
- Shell & Tube Flooded Evaporator
- Shell & Tube Water-Cooled Condenser
- PLC-Based Control Panel (IP55 Enclosure)
- Pre-charged Refrigerant & Oil
- Full System Protection (HP/LP, Flow, Oil, Phase)
- Factory QA/QC Test Reports
Optional Features
- VFD for Compressors
- Marine Duty Condenser Tubes
- Heat Recovery System
- Remote Monitoring Kit
- Anti-Corrosion Coating
- Soft Starters (if no VFD)
- Extended Warranty & AMC
Technical Specification Summary
Evaporator LWT: 6.7°C | Condenser Water Inlet: 29.4°C
Power Supply: 360–440 V / 50 Hz | Control Supply: 210–240 V
FMWCEFS Series (R134a)
| Model | 100 1M | 120 1M | 150 1M | 175 1M | 210 1M | 240 2M | 270 2M | 300 2M | 350 2M |
|---|---|---|---|---|---|---|---|---|---|
| Nominal TR | 100 | 120 | 150 | 175 | 210 | 240 | 270 | 300 | 350 |
| Compressor Type | Screw Z/L | Screw Z/L | Screw Z/L | Screw Z/L | Screw Z/L | Screw Z/L | Screw Z/L | Screw Z/L | Screw Z/L |
| Compressors Qty | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 |
| Capacity Control | 25{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad} | 25{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad} | 25{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad} | 25{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad} | 25{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad} | 12.5{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad} | 12.5{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad} | 12.5{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad} | 12.5{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad} |
| Oil Charge (L) | 19/18 | 35/23 | 35/28 | 35/28 | 35/28 | 35/23 | 35/23 | 35/28 | 35/28 |
| Starting Current Z/L (A) | 520/282 | 465/305 | 436/467 | 465/498 | 805/693 | 593/434 | 723/428 | 593/632 | 635/681 |
| Max Op. Current Z/L (A) | 177/236 | 330/277 | 266/347 | 306/384 | 450/465 | 330/277 | 233/301 | 266/347 | 306/384 |
Evaporator Details
| Item | 100 | 120 | 150 | 175 | 210 | 240 | 270 | 300 | 350 |
|---|---|---|---|---|---|---|---|---|---|
| Type | Flooded (Shell & Tube) | ||||||||
| Model | J1R-2P | K1R-3P | L1R-3P | M1R-3P | M2R-3P | U1R-3P | V2R-3P | W1R-3P | W2R-3P |
| Water Flow (GPM) | 240 | 288 | 360 | 420 | 504 | 576 | 648 | 720 | 840 |
| Pressure Drop (psi) | 3.6 | 10.99 | 11.11 | 11.02 | 11.15 | 10.02 | 9.96 | 10.11 | 11.41 |
| Passes | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Water Conn. (mm) | 150 | 150 | 150 | 200 | 200 | 200 | 200 | 200 | 200 |
Condenser Parameter Table & Details
Unit Dimensions & Refrigerant Charge Table
(Evap. LWT: 6.7°C | Cond. Water Inlet: 29.4°C)
Power Supply: 360–440 V / 50 Hz | Control Supply: 210–240 V
| Item | 100 | 120 | 150 | 175 | 210 | 240 | 270 | 300 | 350 |
|---|---|---|---|---|---|---|---|---|---|
| Type | Flooded (Shell & Tube) | ||||||||
| Model | J1R-2P | K1R-3P | L1R-3P | M1R-3P | M2R-3P | U1R-3P | V2R-3P | W1R-3P | W2R-3P |
| Water Flow (GPM) | 240 | 288 | 360 | 420 | 504 | 576 | 648 | 720 | 840 |
| Pressure Drop (psi) | 3.6 | 10.99 | 11.11 | 11.02 | 11.15 | 10.02 | 9.96 | 10.11 | 11.41 |
| Passes | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Water Conn. (mm) | 150 | 150 | 150 | 200 | 200 | 200 | 200 | 200 | 200 |
| Model | Length (mm) | Width (mm) | Height (mm) | Refrigerant (kg) |
|---|---|---|---|---|
| 100 | 4350 | 1475 | 1580 | 180 |
| 120 | 4320 | 1530 | 1730 | 216 |
| 150 | 4375 | 1640 | 1780 | 270 |
| 175 | 4480 | 1750 | 1880 | 315 |
| 210 | 4410 | 1800 | 1890 | 378 |
| 240 | 4555 | 2300 | 1890 | 432 |
| 270 | 4535 | 2380 | 1940 | 486 |
| 300 | 4590 | 2420 | 1990 | 540 |
| 350 | 4590 | 2630 | 2100 | 630 |
Applications of FIDEM Water Cooled Screw Chillers (FMWCEFS Series)
FIDEM water-cooled screw chillers are engineered for versatile use in a wide range of industrial and commercial cooling applications where high energy efficiency, continuous operation, and precise temperature control are critical.
Healthcare & Hospitals
- MRI, CT-scan & diagnostic equipment cooling
- Centralized HVAC for operation theaters, ICUs
- Constant cooling for pharmaceutical storage rooms
Commercial Buildings & Green Projects
- Office complexes, IT parks, and commercial towers
- LEED/IGBC-rated green buildings
- District cooling systems
Hospitality Sector
- Central air conditioning for hotels and resorts
- Spa, banquet halls, and conference facility ooling
- Energy-efficient HVAC for guest comfort
Malls & Retail Complexes
- Common air conditioning systems
- Zoned comfort cooling for retail areas
- Energy savings during varying load conditions
Pharmaceutical & Cleanroom Applications
- Precise temperature & humidity control
- 24x7 operation for cleanrooms, R&D labs, and production
- cGMP and USFDA-compliant HVAC integration
Plastic Processing Industry
- Mold cooling for injection/blow molding machines
- Process cooling for extrusion, calendaring lines
- Accurate chilled water supply for high-volume lines
Chemical & Petrochemical Industry
- Reactor and batch process cooling
- Utility chilling in hazardous zones (flameproof variants optional)
- Glycol and brine variants for low-temp process chilling
Food & Beverage Processing
- Beverage processing, fermentation, CIP cooling
- Cold room & blast chilling integration
- Dairy & ice cream line process cooling
Data Centers & Server Rooms
- Precision cooling for servers and UPS rooms
- High redundancy with dual compressor operation
- Remote monitoring for uptime assurance
OEM & Process Cooling Applications
- Central cooling plants for OEM system integration
- Energy-efficient alternative to multiple small chillers
- Seamless compatibility with AHUs, FCUs, or process equipment
FAQs
What makes these chillers energy efficient?
- Advanced screw compressor modulation, flooded heat exchangers, and EXV control deliver high IPLV/COP with low power draw.
What is the capacity control modulation?
- Single compressor models down to 25{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad}, dual compressor units down to 12.5{7b18a7080630502dff9462090639c38ac022b53b5ec422b3d0a545a26e2246ad} per compressor.
What water quality is required?
- Use chemically treated soft/RO water. Fouling factors:• Evaporator: 0.000018 m²°C/W • Condenser: 0.000044 m²°C/W
Can I use glycol or brine?
- No. For glycol use, refer to our FMWCGL series.
Power supply details?
- • Compressor: 360–440 V / 3-Ph / 50 Hz • Control Panel: 210–240 V AC
What safety protections are included?
- HP/LP cut-outs
- Oil & phase protection
- Freeze and flow switch alarms
- Auto-restart with alarm log
Can I customize the unit?
- Yes. Special designs for pharma, data centers, process cooling, high ambient zones available.
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