Aquatechplus Pvt. Ltd.

Kuvadva Road, Rajkot, Gujarat

2. CONDENSER DETAILS (WATER COOLED SHELL & TUBE)

2. CONDENSER DETAILS (WATER COOLED SHELL & TUBE)

Technical Specification

TECHNICAL SPECIFICATION

20 TR AIR COOLED SCROLL TYPE WATER CHILLER

Sr. No.ParameterRevised Similar / Equivalent Description

1Equipment ModelFMACS-20TR-407

2Cooling Output Capacity20 TR (Tons of Refrigeration)

3Refrigeration System ArrangementSingle, Self-Contained Refrigeration Circuit

4Power Supply Characteristics400 V 10%, 50 Cycles, Three Phase AC

5Total Electrical Load13.32 kW / 24.9 A

6Specified RefrigerantR-407C (Eco-Compatible Refrigerant)

7Refrigerant Metering DeviceThermostatic Type Expansion Valve (TXV)

8Design Evaporating Temperature (SST)+5 C

9Design Condensing Temperature (SDT)+35 C

10Maximum Design Ambient Temperature45 C

11Chilled Water Operating Temperature Range+7 C to +10 C

12Design Chilled Water Flow Requirement12, 000 LPH at T = 5 C

13Compressor DesignFully Hermetic Scroll Compressor

14Installed Compressor QuantityOne (1) No.

15Compressor Motor Power Rating12 kW / 23 A

16Compressor Starting TechniqueDirect-On-Line (DOL) Starting Method

17Cooling Capacity RegulationStep-Type Capacity Control 0%, 50%, 100%

18Evaporator ConfigurationShell & Tube Type Chilled Water Heat Exchanger

19Evaporator Water Connection3 Inch Flanged Inlet / Outlet

20Evaporator Shell Material of ConstructionCarbon Steel with Anti-Corrosive Powder Coating

21Evaporator Tube MaterialInternally Enhanced / Grooved Copper Tubes

22Condenser ConfigurationShell & Tube Type Condenser

23Condenser Construction MaterialCopper Tubes with Carbon Steel Outer Shell

24Chilled Water Pump DetailsStainless Steel (SS-304) Pump with 1.5 HP Motor

25Standard Safety & Protection FeaturesBuilt-in Compressor Thermal Protection, Electrical Overload Safety, High & Low Pressure Safety Cut-outs, Phase Sequence & Phase Failure Protection, Discharge Gas Temperature Safety Switch, Chilled Water Flow Interlock, Anti-Freeze Protection Logic

26Electrical Control & Protection PanelMicroprocessor-Based Control System with Protection Relays, Power Contactors, MCBs, Phase Preventer Relay and Time Delay Controls

27Overall Dimensions (L W H)To be furnished after order confirmation

28Estimated Operating WeightShall be provided at finalization stage

20 TR AIR COOLED SCROLL TYPE WATER CHILLER

The FMACSC-80TR-R407C air-cooled chiller delivers 80 TR (280 kW) using a single refrigeration circuit. Electrical supply: 400 V, 3-phase, 50 Hz; connected load 70.25 kW; rated current 114.8 A. Refrigeration uses R407C with thermostatic expansion valve control, operating at 7C evaporation and 50C condensation, suitable for ambient temperatures up to 45C. Chilled water temperature range: +10C to +20C.

Chilled water flow: 6000 LPH at T 35C. Heat rejection via air-cooled condenser with copper tubes and aluminum fins, served by four 28-inch axial suction fans. Fan input: 0.65 kW each; total airflow 30, 720 CFM; mounting on galvanized steel frame.

Compression by one semi-hermetic screw compressor from Bitzer; motor rating 63.9 kW, current 105.4 A at 50 Hz. Starting method: stardelta. Capacity control: step modulation 0100%.

Evaporation through shell-and-tube heat exchanger with powder-coated carbon steel shell, inner-grooved copper tubes, and SS-304 TIG-welded baffles and headers. Working pressure 10 bar; test pressure 15 bar; water connections 3-inch BSP. Insulation: 40 mm closed-cell PUF.

Integrated circulation pump: 3.75 kW (5 HP); capacity 50, 000 LPH; head 2.33 kg/cm. Condenser-side refrigerant piping: 3/8 inch. Safety systems include HP/LP cut-outs, motor overload, phase reversal, flow interlock, anti-freeze logic, discharge temperature cut-out, internal thermostat, and low water level protection.

Electrical control via factory-assembled panel with MCBs, contactors, overload relays, timers, PLC, and HMI, fully wired and tested. Overall dimensions and GA drawings to be submitted after order confirmation.

FMACSC-80TR-R407C air-cooled chiller; cooling duty 80 TR (280 kW); configuration single refrigeration circuit. Power supply 400 V / 3Ph / 50 Hz; connected load 70.25 kW; rated current 114.8 A. Refrigerant R407C with thermostatic expansion valve; design conditions 7C evaporation, 50C condensation; ambient suitability up to 45C. Chilled water temperature band +10C to +20C.

Chilled water quantity 6000 LPH @ T 35C. Heat rejection by air-cooled condenser with copper tubes and aluminum fins; airflow generated by four axial suction fans, 28-inch diameter. Fan rating 0.65 kW each; combined airflow 30, 720 CFM; structure galvanized steel.

Compression via one semi-hermetic screw compressor by Bitzer; motor input 63.9 kW; current 105.4 A @ 50 Hz. Starting arrangement stardelta; capacity regulation step control 0100%.

Evaporator type shell-and-tube; shell powder-coated carbon steel; tubes inner-grooved copper; baffles/headers SS-304, TIG welded. Pressure rating 10 bar; hydro test 15 bar; water nozzles 3-inch BSP. Insulation 40 mm closed-cell PUF.

Circulation pump integral, rating 3.75 kW (5 HP); discharge 50, 000 LPH; head 2.33 kg/cm. Condenser refrigerant line size 3/8 inch. Safety coverage: HP/LP switches, overload protection, phase reversal, flow interlock, anti-freeze logic, discharge temperature cut-out, internal thermostat, low water level protection.

Control system factory-assembled electrical panel with MCBs, contactors, overload relays, timers, PLC, HMI; wiring and testing completed prior to dispatch. Overall dimensions and GA drawings after order confirmation.

The FM2-275X57XH air-cooled chiller is engineered to achieve a nominal cooling output of 274.0 TR (approximately 962 kW) and is constructed with two independent refrigeration circuits to ensure dependable, uninterrupted, and stable operation across varying load conditions. The unit is designed for connection to a three-phase, 415 V, 50 Hz electrical supply, with a total connected load of 304.0 kW and a full-load operating current of approximately 490 A. The refrigeration system operates using R134a refrigerant, with precise control of refrigerant flow and cooling capacity provided by an expansion valve in a flooded system configuration, resulting in smooth system behavior and improved energy efficiency. The chiller is designed to operate at an evaporating saturated suction temperature (SST) of +5.6 C, corresponding to a leaving chilled water temperature (LWT) of 6.07 C. Heat rejection performance is rated at a condensing temperature of +45 C SDT, under a maximum ambient temperature of +46 C. The unit supports a chilled water operating temperature range from 5 C to 20 C, with a chilled water flow requirement of 415.3 L/s (approximately 1495 m/h), corresponding to an effective temperature differential of approximately 5.6 C. The system is equipped with a flooded shell-and-tube evaporator, designed to deliver high heat transfer efficiency and consistent thermal performance. The evaporator shell is manufactured from powder-coated carbon steel, while the heat exchange tubes are made of copper, supported by carbon steel baffles and headers. The evaporator is designed for a water-side design pressure of 15.0 kg/cm and is hydrostatically tested at approximately 22 bar. Chilled water connections are provided via DN150 (approximately 6 NB) flanged nozzles, suitable for the specified flow conditions. To reduce heat ingress and prevent surface condensation, the evaporator is insulated with 40 mm thick PUF insulation. The refrigeration package incorporates two semi-hermetic flooded screw compressors, fitted with a star-delta starting arrangement to limit starting current and minimize mechanical stress during startup. Cooling capacity regulation is achieved through step or slide valve modulation, enabling efficient operation during partial-load conditions and improved IPLV performance. The total installed compressor power is 264 kW, ensuring reliable and robust cooling performance across a wide operating envelope. Heat rejection is accomplished through an air-cooled condenser comprising copper tubes with aluminum fins, mounted on a galvanized steel structural frame for enhanced durability and corrosion resistance. The condenser is designed to handle a total airflow capacity of 394, 168 CMH, generated by 16 axial-type, low-noise fans, each having a 910 mm diameter, in line with standard design practices for a 275 TR capacity unit. The total installed fan power is 40.0 kW, with each fan driven by a 2.5 kW motor, ensuring effective heat dissipation even under elevated ambient conditions. The chiller is supplied without an integral chilled water pump, and therefore external pumps are to be provided by the client, with pump head and selection to be finalized based on site-specific requirements. The unit is equipped with comprehensive safety and protection features, including compressor over-temperature protection, high- and low-pressure safety switches, over-current and over-temperature protection, flow switch, phase sequence and phase failure protection, and oil safety devices, ensuring safe and reliable operation. The electrical control system is housed in a factory-assembled and pre-wired electrical control panel, incorporating a PLC and HMI for system monitoring and control, along with MCCBs, contactors, overload relays, timers, and auxiliary relays, enabling user-friendly operation, effective system protection, and advanced fault diagnostics. The overall dimensions of the chiller are 9610 mm (L) 2825 mm (W) 2547 mm (H), with an

FMACSC-85TR-R407C air-cooled industrial chiller cooling duty 85 TR (302 kW) refrigeration topology single closed loop
Electrical feed 400 V / 3 / 50 Hz power draw 73.0 kW nominal current 122 A
Refrigerant R407C expansion device TXV thermal points 7C evap / 40C cond design ambient 48C
Chilled water operating span +7C to +20C

Hydronic capacity 50, 000 LPH @ T 5C
Heat dissipation system air-cooled condenser module (copper tubealuminum fin core) ventilation by four axial suction fans, 630 mm
Fan input 1.5 kW each aggregate airflow 70, 000 CFM support chassis galvanized steel

Compression package single semi-hermetic screw compressor supplied by Bitzer drive power 67.0 kW running current 102 A @ 50 Hz
Motor initiation stardelta load control progressive step unloading 0100%

Evaporator unit shell-and-tube heat exchanger pressure body powder-coated carbon steel tube bundle inner-grooved copper flow control SS-304 TIG-welded baffles and headers
Pressure rating 10 bar hydro test 15 bar water interface 3-inch BSP
Thermal insulation 40 mm closed-cell PUF

Circulation arrangement 2 SS-304 centrifugal pumps, 5.5 kW each, configuration 1 operating + 1 standby
Condenser refrigerant line 3/8 inch
Protective systems HP/LP safeties overload protection phase sequence check flow verification freeze prevention logic discharge temperature limiter internal thermostat low-water cut-off

The FIDEM water-cooled glycol screw chiller, designated as model FM-GWCS-170-407C, is developed to deliver a rated refrigeration capacity of 170 TR (approximately 599 kW) and utilizes R407C refrigerant to achieve efficient, consistent, and dependable heat transfer. The unit features two independent refrigeration circuits, ensuring reliable operation, system redundancy, and stable cooling performance under fluctuating load conditions. It is suitable for operation on a three-phase, 415 V, 50 Hz electrical supply, with an estimated connected electrical load of 140 kW and a full-load operating current of approximately 230 A. Accurate refrigerant metering and load regulation are achieved through an electronic expansion valve, allowing quick response to load changes and enhanced efficiency during part-load operation.

The chiller is equipped with a shell-and-tube evaporator specifically designed for chilled glycol service and operates at a saturated suction temperature (SST) of +5 C. The evaporator is suitable for a glycol temperature range of 0 C at inlet to 15 C at outlet, delivering a glycol flow rate of 100, 000 LPH, corresponding to an effective temperature differential of approximately 5 C. The evaporator assembly consists of two circuits and provides a net cooling output of approximately 600 kW. The evaporator shell is constructed from 10 mm thick seamless carbon steel, while heat exchange is achieved using internally grooved copper tubes arranged in a U-bundle configuration to improve thermal efficiency. The evaporator is provided with DN150 flanged connections and is designed for a maximum water-side pressure drop of 0.4 bar, a water-side design pressure of 10 bar, and a refrigerant-side design pressure of 25 bar.

Chilled glycol circulation is provided by a centrifugal monoblock pump supplied as part of the chiller package. The pump is rated for a flow capacity of 90, 000 LPH at a developed head of 15 meters and is driven by a 7 kW electric motor, ensuring continuous and reliable circulation of glycol through the evaporator and associated process piping network.

The water-cooled condenser, also of shell-and-tube construction, is designed to operate at a saturated discharge temperature (SDT) of +35 C. The condenser is capable of rejecting a total thermal load of 720 kW and features a carbon steel shell with epoxy coating to enhance corrosion resistance and extend service life. The condenser heat transfer surface comprises plain copper tubes arranged in a removable bundle, allowing easy access for inspection and routine maintenance. The condenser is designed for a cooling water flow rate of 100, 000 LPH, equipped with DN200 flanged inlet and outlet connections, and maintains a water-side pressure drop not exceeding 0.4 bar. The design pressure limits are 10 bar on the water side and 30 bar on the refrigerant side.

Cooling water circulation through the condenser is maintained by a centrifugal monoblock pump rated for 100, 000 LPH at a head of 10 meters. The pump is driven by a 7.5 kW motor, suitable for operation on a 380415 V, 50 Hz electrical supply, ensuring efficient and stable condenser water circulation.

The refrigeration system incorporates compact screw compressors designed for continuous operation, heavy-duty performance, and long service life. Compressor capacity control is achieved through step modulation, with unloading stages of 25%, 50%, 75%, and 100%, enabling efficient system operation during partial-load conditions. The compressors are started using a star-delta starting method. The compressor package delivers a rated cooling capacity of 599 kW, with a power input of approximately 121 kW, operating at a full-load current of around 201 A at 400 V, and is suitable for a voltage range of 380415 V.

The FIDEM water-cooled glycol screw chiller, designated as model FM-GWCS-170-407C, is engineered to deliver a rated refrigeration capacity of 170 TR (approximately 599 kW) and operates on R407C refrigerant, ensuring efficient, stable, and uniform heat transfer performance. The unit is configured with two fully independent refrigeration circuits, providing high operational dependability, built-in redundancy, and consistent cooling output across a wide range of load conditions. The chiller is designed for connection to a three-phase, 415 V, 50 Hz electrical supply, with an estimated connected power demand of 140 kW and a full-load current of approximately 230 A. Accurate refrigerant flow management and capacity regulation are achieved through an electronic expansion valve, enabling rapid response to load variations and improved efficiency during part-load operation.

The system incorporates a shell-and-tube evaporator purpose-built for chilled glycol service and operates at a saturated suction temperature (SST) of +5 C. The evaporator is designed to accommodate a glycol temperature range from 0 C at inlet to 15 C at outlet, delivering a glycol circulation rate of 100, 000 LPH, corresponding to an effective temperature differential of approximately 5 C. The evaporator assembly consists of two circuits and provides a net cooling output of approximately 600 kW. The evaporator shell is fabricated from 10 mm thick seamless carbon steel, while heat exchange is achieved through internally grooved copper tubes arranged in a U-bundle configuration to enhance thermal performance. The evaporator is provided with DN150 flanged connections and is designed for a maximum water-side pressure drop of 0.4 bar, a water-side design pressure of 10 bar, and a refrigerant-side design pressure of 25 bar.

Reliable circulation of chilled glycol is ensured by a centrifugal monoblock pump supplied as part of the chiller package. The pump is rated for a flow capacity of 90, 000 LPH at a total developed head of 15 meters and is driven by a 7 kW electric motor, ensuring continuous and dependable glycol circulation through the evaporator and the associated process piping network.

The water-cooled condenser, also of shell-and-tube construction, is designed to operate at a saturated discharge temperature (SDT) of +35 C. The condenser is capable of rejecting a total thermal load of 720 kW and features a carbon steel shell with epoxy coating to enhance corrosion resistance and extend service life. The condenser heat transfer surface comprises plain copper tubes assembled in a removable bundle, allowing convenient access for inspection and routine maintenance. The condenser is designed for a cooling water flow rate of 100, 000 LPH, fitted with DN200 flanged inlet and outlet connections, and maintains a water-side pressure drop not exceeding 0.4 bar. The design pressure ratings are 10 bar on the water side and 30 bar on the refrigerant side.

Cooling water circulation through the condenser is provided by a centrifugal monoblock pump rated for 100, 000 LPH at a head of 10 meters. The pump is driven by a 7.5 kW motor, suitable for operation on a 380415 V, 50 Hz electrical supply, ensuring stable and efficient condenser water circulation.

The refrigeration system incorporates compact screw compressors designed for continuous-duty operation, heavy-load service, and long-term reliability. Compressor capacity regulation is achieved through step modulation, with unloading stages of 25%, 50%, 75%, and 100%, enabling efficient system operation under partial-load conditions. Compressor starting is accomplished using a star-delta starting arrangement. The compressor package delivers a rated cooling capacity of 599 kW, with a power input of approximately 121 kW, operating at a full-load current of around 201 A at 400 V, and is suitable for a voltage operating range of 380415 V.

The FIDEM water-cooled screw chiller, model FM-WCS-200-407C, has been specifically developed to deliver a rated cooling capacity of 200 TR (approximately 703 kW) and operates on R407C refrigerant to ensure efficient and dependable heat transfer. The unit incorporates two completely independent refrigeration circuits, offering enhanced system reliability, operational redundancy, and stable performance under varying load conditions. It is designed for connection to a three-phase, 415 V, 50 Hz power supply, with an estimated total connected electrical load of about 150 kW and a full-load current of approximately 243 A. Refrigerant flow and capacity adjustment are precisely managed through an electronic expansion valve, enabling fast system response and improved efficiency during part-load operation.

The chiller is equipped with a shell-and-tube evaporator engineered for chilled water duty and operates at a saturated suction temperature (SST) of +10 C. The evaporator is suitable for a chilled water temperature range of 15 C at inlet and 20 C at outlet, delivering a chilled water flow rate of 26, 500 LPH, which corresponds to an effective temperature differential of around 23 C. The evaporator assembly consists of two circuits and provides a net cooling output of 703 kW. The shell is constructed from 10 mm thick seamless carbon steel, while heat transfer is achieved through internally grooved copper tubes arranged in a U-bundle configuration for enhanced thermal performance. The evaporator is provided with 6-inch flanged water connections and is designed for a maximum water-side pressure drop of 0.4 bar, a water-side design pressure of 10 bar, and a refrigerant-side design pressure of 25 bar.

Chilled water circulation is facilitated by a centrifugal monoblock pump supplied as part of the chiller package. The pump is rated for a flow capacity of 120, 000 LPH at a total head of 16.3 meters and is driven by an 11 kW electric motor, ensuring consistent and reliable chilled water flow through the evaporator and associated HVAC or process piping network.

The water-cooled condenser, also of shell-and-tube construction, is designed to operate at a saturated discharge temperature (SDT) of +35 C. The condenser is capable of rejecting a total heat load of 718 kW and features a carbon steel shell with epoxy coating to improve corrosion resistance and extend service life. The condenser heat exchange surface consists of plain copper tubes arranged in a removable bundle, allowing easy cleaning and routine maintenance. The condenser is designed for a cooling water flow rate of 140, 000 LPH, equipped with 6-inch flanged inlet and outlet connections, and maintains a water-side pressure drop not exceeding 0.4 bar. Design pressure ratings are 10 bar on the water side and 30 bar on the refrigerant side.

Cooling water circulation through the condenser is ensured by a centrifugal monoblock pump rated for 140, 000 LPH at a head of 15.7 meters. The pump is fitted with an 11 kW motor, suitable for operation on a 380415 V, 50 Hz electrical supply, ensuring stable and efficient condenser water flow.

The refrigeration system is equipped with compact screw compressors designed for continuous operation, heavy-duty performance, and long operational life. Compressor capacity is controlled through step or stepless modulation, with unloading stages of 25%, 50%, 75%, and 100%, allowing the system to operate efficiently during partial-load conditions. Compressor starting is achieved using a star-delta starting arrangement, while VFD operation is available as an optional feature for improved energy efficiency and smoother capacity control. The compressor package is capable of delivering a maximum cooling capacity of 718 kW, with actual power consumption dependent on operating conditions and site-specific requirements.

30 TR AIR COOLED SCROLL TYPE GLYCOL / WATER CHILLER

30 TR AIR COOLED SCROLL TYPE GLYCOL / WATER CHILLER

30 TR AIR COOLED SCROLL TYPE GLYCOL / WATER CHILLER

FMACSC-85TR-R407C air-cooled industrial chiller duty 85 TR (302 kW) refrigerant path single closed loop
Power source 400 V / 3 / 50 Hz electrical demand 73.0 kW line amperage 122 A
Working refrigerant R407C metering device TXV design state 7C evap / 40C cond ambient limit 48C
Chilled water control band +7C to +20C

Hydraulic throughput 50, 000 LPH @ T 5C
Heat rejection assembly air-cooled condenser block (copper tubealuminum fin matrix) air propulsion 4 axial suction fans, 630 mm
Fan drive 1.5 kW per unit resultant airflow 70, 000 CFM base structure galvanized steel

Compression unit single semi-hermetic screw type by Bitzer mechanical input 67.0 kW operating draw 102 A @ 50 Hz
Start sequence stardelta capacity modulation incremental unloading 0100%

Evaporative section shell-and-tube exchanger pressure casing powder-coated carbon steel tube bank inner-grooved copper distribution members SS-304 TIG-welded baffles / headers
Pressure class 10 bar proof test 15 bar hydraulic ports 3-inch BSP
Thermal barrier 40 mm closed-cell PUF

Water circulation package 2 SS-304 centrifugal pumps, 5.5 kW each, deployment 1 duty + 1 standby
Condenser refrigerant connection 3/8 inch
Safety architecture HP/LP cut-outs overload trip phase sequence monitor flow proving freeze protection discharge temperature limiter internal thermostat low-water interlock

FMACSC-85TR-R407C; air-cooled water chiller; rated duty 85 TR (302 kW); refrigeration architecture single closed circuit. Power provision 400 V three-phase 50 Hz; electrical demand 73.0 kW; full-load current 122 A. Refrigerant charge R407C; metering via TXV; thermal design points 7C evaporation / 40C condensation; maximum ambient allowance 48C. Chilled water operating envelope +7C to +20C.

System water throughput 50, 000 LPH at T 5C. Heat dissipation module air-cooled condenser bank, copper tube and aluminum fin matrix; airflow induced by four axial suction fans, 630 mm diameter. Fan drive rating 1.5 kW per unit; cumulative airflow 70, 000 CFM; mounting base galvanized steel framework.

Compression achieved through single semi-hermetic screw compressor supplied by Bitzer; shaft power 67.0 kW; operating current 102 A at 50 Hz. Starting protocol stardelta; capacity adjustment incremental unloading 0100%.

Evaporative heat exchange via shell-and-tube assembly; pressure shell powder-coated carbon steel; heat transfer medium inner-grooved copper tubing; flow management components SS-304 TIG-welded headers and baffles. Design pressure 10 bar; hydrostatic verification 15 bar; hydraulic interfaces 3-inch BSP. Insulation layer 40 mm closed-cell PUF.

Hydronic circulation provided by two SS-304 centrifugal pumps, 5.5 kW each, deployment one duty + one standby. Condenser refrigerant line dimension 3/8 inch. Protective logic encompasses high/low pressure cut-outs, motor thermal overload, phase sequence supervision, flow confirmation, freeze prevention algorithm, discharge temperature limiter, internal thermostat, and low water level interlock.

Differential pressure protection across evaporator
Low-flow alarm & auto shutdown logic
Manual air vent on evaporator
Note: Prevents damage due to air locking or insufficient water circulation.

Anti-short cycling timer
Minimum ON / OFF time delay
Automatic restart with fault memory
Note: Extends compressor life and improves system reliability.

Pressure-based fan cycling (standard)
Multi-step fan control for stable condensing temperature
EC fans optional for energy-efficient operation
Note: Improves performance during fluctuating ambient conditions.

Evaporator fouling factor: 0.00010.0002 hrftF/Btu
Approach temperature: 23 C (typical)
Note: Lower approach temperature results in better system efficiency.

Powder-coated CRCA sheet steel enclosure
IP 54 protection class
Internal wiring with ferrules & cable markers
Note: Suitable for industrial indoor/outdoor installations.

Digital water inlet & outlet temperature display
Suction & discharge pressure indication
Alarm indication with fault code display
Note: Enables easy troubleshooting and monitoring.

Low Global Warming Potential (GWP) refrigerant options available
RoHS-compliant electrical components
Designed for reduced carbon footprint
Note: Suitable for green and energy-conscious projects.

Maximum altitude: up to 1000 m above MSL (standard)
Deration applicable above 1000 m altitude
Suitable for tropical climatic conditions
Note: Altitude and humidity affect cooling capacity.

Performance run test at factory
Electrical insulation & continuity test
Refrigerant leak testing using nitrogen
Note: Ensures trouble-free commissioning at site.

Easily accessible service points
Standard make components for easy availability
Nationwide service support (optional)
Note: Reduces downtime and maintenance cost.

Compressor life expectancy: 812 years
Heat exchanger life: 1215 years (with proper water quality)
Note: Life depends on operating conditions and maintenance.

Installation, Operation & Maintenance (IOM) manual
Electrical wiring diagram
GA drawing (on request)
Test & inspection certificate

Continuous power supply
Treated chilled water supply
Drain point near unit location
Adequate ventilation / exhaust airflow

Low-temperature brine chilling (with glycol)
Continuous 247 operation design
High ambient duty version (50 C)
Redundant pump / control philosophy (optional)

The FM2-275X57XH air-cooled chiller is designed to deliver a rated refrigeration capacity of 274.0 TR (approximately 962 kW) and is configured with two independent refrigeration circuits, ensuring stable, continuous, and dependable system operation. The unit is suitable for operation on a three-phase, 415 V, 50 Hz power supply, with a total connected electrical load of 304.0 kW and a full-load running current of approximately 490 A. The refrigeration system employs R134a refrigerant, with refrigerant flow and cooling capacity accurately regulated by an expansion valve operating in a flooded system arrangement, resulting in smooth operation and enhanced overall efficiency. The chiller is designed to operate at an evaporating saturated suction temperature (SST) of +5.6 C, corresponding to a leaving chilled water temperature (LWT) of 6.07 C. Heat rejection performance is rated at a condensing temperature of +45 C SDT, under a maximum ambient temperature of +46 C. The system supports a chilled water temperature operating range of 5 C to 20 C, with a required chilled water flow rate of 415.3 L/s (approximately 1495 m/h), corresponding to an effective temperature differential of approximately 5.6 C. The unit is equipped with a flooded shell-and-tube evaporator, designed to provide efficient heat transfer and consistent thermal performance. The evaporator shell is manufactured from powder-coated carbon steel, while the heat exchange tubes are constructed from copper, supported by carbon steel baffles and headers. The evaporator is designed for a water-side design pressure of 15.0 kg/cm and is hydrostatically tested at approximately 22 bar. Chilled water connections are provided with DN150 (approximately 6 NB) flanged nozzles, suitable for the specified flow conditions. To reduce heat gain and prevent surface condensation, the evaporator is insulated with 40 mm thick PUF insulation. The refrigeration system incorporates two semi-hermetic flooded screw compressors, equipped with a star-delta starting arrangement to minimize starting current and reduce mechanical stress during startup. Cooling capacity regulation is achieved through step or slide valve modulation, enabling efficient performance under partial-load conditions and improved IPLV efficiency. The total installed compressor power is 264 kW, ensuring reliable and robust cooling performance across a wide range of operating conditions. Heat rejection is achieved through an air-cooled condenser consisting of copper tubes with aluminum fins, mounted on a galvanized steel structural frame for enhanced durability and corrosion resistance. The condenser is designed to handle a total airflow capacity of 394, 168 CMH, generated by 16 axial-type, low-noise fans, each with a 910 mm diameter, in line with standard design practices for a 275 TR capacity unit. The total installed fan power is 40.0 kW, with each fan driven by a 2.5 kW motor, ensuring effective heat dissipation even under high ambient conditions. The chiller is supplied without an integral chilled water pump, and therefore external pumps are to be provided by the client, with pump head and selection to be finalized based on site-specific requirements. The unit is equipped with comprehensive safety and protection features, including compressor over-temperature protection, high- and low-pressure safety switches, over-current and over-temperature protection, flow switch, phase sequence and phase failure protection, and oil safety devices, ensuring safe and reliable system operation. The electrical control system is housed in a factory-assembled and pre-wired electrical control panel, incorporating a PLC and HMI for system monitoring and control, along with MCCBs, contactors, overload relays, timers, and auxiliary relays, enabling user-friendly operation, system protection, and advanced fault diagnostics. The overall dimensions of the chiller are 9610 mm (L) 2825 mm (W) 2547 mm (H), with an approximate running weight

The FM2-275X57XH air-cooled chiller is engineered to achieve a nominal cooling output of 274.0 TR (approximately 962 kW) and is constructed with two independent refrigeration circuits to ensure dependable, uninterrupted, and stable operation across varying load conditions. The unit is designed for connection to a three-phase, 415 V, 50 Hz electrical supply, with a total connected load of 304.0 kW and a full-load operating current of approximately 490 A. The refrigeration system operates using R134a refrigerant, with precise control of refrigerant flow and cooling capacity provided by an expansion valve in a flooded system configuration, resulting in smooth system behavior and improved energy efficiency. The chiller is designed to operate at an evaporating saturated suction temperature (SST) of +5.6 C, corresponding to a leaving chilled water temperature (LWT) of 6.07 C. Heat rejection performance is rated at a condensing temperature of +45 C SDT, under a maximum ambient temperature of +46 C. The unit supports a chilled water operating temperature range from 5 C to 20 C, with a chilled water flow requirement of 415.3 L/s (approximately 1495 m/h), corresponding to an effective temperature differential of approximately 5.6 C. The system is equipped with a flooded shell-and-tube evaporator, designed to deliver high heat transfer efficiency and consistent thermal performance. The evaporator shell is manufactured from powder-coated carbon steel, while the heat exchange tubes are made of copper, supported by carbon steel baffles and headers. The evaporator is designed for a water-side design pressure of 15.0 kg/cm and is hydrostatically tested at approximately 22 bar. Chilled water connections are provided via DN150 (approximately 6 NB) flanged nozzles, suitable for the specified flow conditions. To reduce heat ingress and prevent surface condensation, the evaporator is insulated with 40 mm thick PUF insulation. The refrigeration package incorporates two semi-hermetic flooded screw compressors, fitted with a star-delta starting arrangement to limit starting current and minimize mechanical stress during startup. Cooling capacity regulation is achieved through step or slide valve modulation, enabling efficient operation during partial-load conditions and improved IPLV performance. The total installed compressor power is 264 kW, ensuring reliable and robust cooling performance across a wide operating envelope. Heat rejection is accomplished through an air-cooled condenser comprising copper tubes with aluminum fins, mounted on a galvanized steel structural frame for enhanced durability and corrosion resistance. The condenser is designed to handle a total airflow capacity of 394, 168 CMH, generated by 16 axial-type, low-noise fans, each having a 910 mm diameter, in line with standard design practices for a 275 TR capacity unit. The total installed fan power is 40.0 kW, with each fan driven by a 2.5 kW motor, ensuring effective heat dissipation even under elevated ambient conditions. The chiller is supplied without an integral chilled water pump, and therefore external pumps are to be provided by the client, with pump head and selection to be finalized based on site-specific requirements. The unit is equipped with comprehensive safety and protection features, including compressor over-temperature protection, high- and low-pressure safety switches, over-current and over-temperature protection, flow switch, phase sequence and phase failure protection, and oil safety devices, ensuring safe and reliable operation. The electrical control system is housed in a factory-assembled and pre-wired electrical control panel, incorporating a PLC and HMI for system monitoring and control, along with MCCBs, contactors, overload relays, timers, and auxiliary relays, enabling user-friendly operation, effective system protection, and advanced fault diagnostics. The overall dimensions of the chiller are 9610 mm (L) 2825 mm (W) 2547 mm (H), with an

The FIDEM water-cooled glycol screw chiller, designated as model FM-GWCS-170-407C, is engineered to deliver a rated refrigeration capacity of 170 TR (approximately 599 kW) and operates on R407C refrigerant, ensuring efficient, stable, and uniform heat transfer performance. The unit is configured with two fully independent refrigeration circuits, providing high operational dependability, built-in redundancy, and consistent cooling output across a wide range of load conditions. The chiller is designed for connection to a three-phase, 415 V, 50 Hz electrical supply, with an estimated connected power demand of 140 kW and a full-load current of approximately 230 A. Accurate refrigerant flow management and capacity regulation are achieved through an electronic expansion valve, enabling rapid response to load variations and improved efficiency during part-load operation.

The system incorporates a shell-and-tube evaporator purpose-built for chilled glycol service and operates at a saturated suction temperature (SST) of +5 C. The evaporator is designed to accommodate a glycol temperature range from 0 C at inlet to 15 C at outlet, delivering a glycol circulation rate of 100, 000 LPH, corresponding to an effective temperature differential of approximately 5 C. The evaporator assembly consists of two circuits and provides a net cooling output of approximately 600 kW. The evaporator shell is fabricated from 10 mm thick seamless carbon steel, while heat exchange is achieved through internally grooved copper tubes arranged in a U-bundle configuration to enhance thermal performance. The evaporator is provided with DN150 flanged connections and is designed for a maximum water-side pressure drop of 0.4 bar, a water-side design pressure of 10 bar, and a refrigerant-side design pressure of 25 bar.

Reliable circulation of chilled glycol is ensured by a centrifugal monoblock pump supplied as part of the chiller package. The pump is rated for a flow capacity of 90, 000 LPH at a total developed head of 15 meters and is driven by a 7 kW electric motor, ensuring continuous and dependable glycol circulation through the evaporator and the associated process piping network.

The water-cooled condenser, also of shell-and-tube construction, is designed to operate at a saturated discharge temperature (SDT) of +35 C. The condenser is capable of rejecting a total thermal load of 720 kW and features a carbon steel shell with epoxy coating to enhance corrosion resistance and extend service life. The condenser heat transfer surface comprises plain copper tubes assembled in a removable bundle, allowing convenient access for inspection and routine maintenance. The condenser is designed for a cooling water flow rate of 100, 000 LPH, fitted with DN200 flanged inlet and outlet connections, and maintains a water-side pressure drop not exceeding 0.4 bar. The design pressure ratings are 10 bar on the water side and 30 bar on the refrigerant side.

Cooling water circulation through the condenser is provided by a centrifugal monoblock pump rated for 100, 000 LPH at a head of 10 meters. The pump is driven by a 7.5 kW motor, suitable for operation on a 380415 V, 50 Hz electrical supply, ensuring stable and efficient condenser water circulation.

The refrigeration system incorporates compact screw compressors designed for continuous-duty operation, heavy-load service, and long-term reliability. Compressor capacity regulation is achieved through step modulation, with unloading stages of 25%, 50%, 75%, and 100%, enabling efficient system operation under partial-load conditions. Compressor starting is accomplished using a star-delta starting arrangement. The compressor package delivers a rated cooling capacity of 599 kW, with a power input of approximately 121 kW, operating at a full-load current of around 201 A at 400 V, and is suitable for a voltage operating range of 380415 V.

The FIDEM water-cooled screw chiller, designated as model FM-WCS-200-407C, is engineered to provide a rated cooling capacity of 200 TR, equivalent to approximately 703 kW, and utilizes R407C refrigerant for efficient heat transfer. The unit is configured with two separate and independent refrigeration circuits, which enhance operational reliability and ensure consistent performance across a wide range of load conditions. The chiller is designed for operation on a three-phase electrical supply of 415 V at 50 Hz, with an estimated total connected load of 150 kW and a full-load operating current of approximately 243 A. Accurate refrigerant metering and capacity modulation are achieved through the use of an electronic expansion valve, contributing to improved control accuracy and superior part-load efficiency.

The system incorporates a shell-and-tube type evaporator specifically designed for chilled water service and operates at a saturated suction temperature (SST) of +10 C. The evaporator is suitable for a chilled water temperature regime of 15 C at inlet and 20 C at outlet, delivering a total chilled water flow rate of 26, 500 LPH, corresponding to an effective temperature differential of approximately 23 C. The evaporator assembly is arranged in two circuits and delivers a net cooling output of 703 kW. The evaporator shell is fabricated from 10 mm thick seamless carbon steel, while the heat exchange surface comprises internally grooved copper tubes configured in a U-bundle arrangement for enhanced thermal performance. The evaporator is fitted with 6-inch flanged water connections, and is designed for a maximum water-side pressure drop of 0.4 bar, a water-side design pressure of 10 bar, and a refrigerant-side design pressure of 25 bar.

Chilled water circulation is ensured by a centrifugal monoblock pump supplied as part of the system. The pump is rated for a flow capacity of 120, 000 LPH at a developed head of 16.3 meters and is driven by an 11 kW electric motor, providing reliable and continuous water flow through the evaporator and connected process or HVAC distribution network.

The water-cooled condenser is of shell-and-tube construction and is designed to operate at a saturated discharge temperature (SDT) of +35 C. The condenser is capable of rejecting a total heat load of 718 kW and features a carbon steel shell with epoxy coating to improve corrosion resistance and service life. The condenser tubes are manufactured from plain copper tubes assembled in a removable bundle, facilitating easy inspection and maintenance. The condenser is designed for a cooling water flow rate of 140, 000 LPH, with 6-inch flanged inlet and outlet connections and a water-side pressure drop not exceeding 0.4 bar. Design pressures are rated at 10 bar on the water side and 30 bar on the refrigerant side.

Cooling water circulation through the condenser is maintained by a centrifugal monoblock pump rated for 140, 000 LPH at a head of 15.7 meters. The pump is equipped with an 11 kW motor, suitable for operation on a 380415 V, 50 Hz power supply, ensuring stable and efficient condenser water flow.

The refrigeration package is equipped with compact screw compressors designed for continuous, heavy-duty, and dependable operation. Compressor capacity regulation is achieved through step or stepless modulation, with unloading stages of 25%, 50%, 75%, and 100%, allowing the system to operate efficiently under partial-load conditions. The compressors are started using a star-delta starting arrangement, while variable frequency drive (VFD) operation is available as an optional feature for enhanced energy savings and smoother load transitions. The compressor assembly is capable of delivering a maximum cooling capacity of 718 kW, with actual power consumption dependent on site-specific operating and ambient conditions.

The FIDEM water-cooled screw chiller model FM-WCS-200-407C is designed to deliver a nominal cooling capacity of 200 TR (703 kW) and operates on R407C refrigerant with two independent refrigeration circuits. The unit is suitable for 3-phase, 415 V, 50 Hz power supply with a total connected electrical load of approximately 150 kW (243 A). Cooling capacity regulation is achieved through electronic expansion valves and step or stepless capacity control at 25%, 50%, 75% and 100%, ensuring efficient part-load performance. The chiller operates at a saturated suction temperature of 10 C, providing chilled water in the temperature range of 15 C to 20 C.

The evaporator is of shell and tube construction with two circuits, designed to handle a chilled water flow of approximately 26, 500 LPH at a temperature difference of around 23 C and a cooling capacity of 703 kW. The evaporator shell is fabricated from 10 mm thick seamless carbon steel, while the tubes are internally grooved copper tubes arranged in a U-bundle configuration. The evaporator is provided with 6-inch water connections, a maximum water-side pressure drop of 0.4 bar, a water-side design pressure of 10 bar, and a refrigerant-side design pressure of 25 bar. Chilled water circulation is achieved using a centrifugal monoblock pump rated at 120, 000 LPH at 16.3 m head, driven by an 11 kW motor.

The condenser is also of shell and tube type, designed for water-cooled operation at a saturated discharge temperature of +35 C with a heat rejection capacity of approximately 718 kW. The condenser shell is manufactured from carbon steel with epoxy coating, and the tubes are plain copper tubes in bundle form. It is provided with 6-inch connections, a cooling water flow rate of 140, 000 LPH, and a maximum water-side pressure drop of 0.4 bar. The condenser is designed for a water-side pressure of 10 bar and a refrigerant-side pressure of 30 bar. Cooling water circulation is handled by a centrifugal monoblock pump rated at 140, 000 LPH at 15.7 m head, powered by an 11 kW motor, suitable for 380415 V, 50 Hz operation.

The chiller is equipped with a compact screw compressor, offering reliable and efficient performance with star-delta starting, while VFD operation is optional for enhanced energy efficiency and precise capacity modulation. The compressor is designed to deliver a rated cooling capacity of 718 kW, with power input as per manufacturer specifications.

FIDEM WATER COOLED SCREW TYPE CHILLER (150 TR)

The equipment offered is a FIDEM manufactured water-cooled screw chiller, bearing model designation FM-WCS-150-407C, and engineered to deliver a nominal refrigeration capacity of 150 TR, equivalent to approximately 527 kW of usable cooling output. The chiller system is configured with two (2) independent refrigerant circuits, ensuring high operational reliability, redundancy during part-load operation, and uniform distribution of compressor load. The unit is designed for operation on a three-phase, 415 V, 50 Hz AC power supply, with a maximum electrical connected load of 112.1 kW and a rated full-load current of 204.8 A. The refrigeration cycle employs R-407C refrigerant, and precise refrigerant flow regulation is achieved through an Electronic Expansion Valve (EEV), enabling stable, efficient, and responsive performance across operating conditions.

The chiller is provided with a water-cooled shell and tube type evaporator, designed for an evaporating saturation temperature (SST) of 10 C. The system is suitable for applications requiring a chilled water supply temperature range of 15 C to 20 C. The evaporator incorporates two (2) refrigerant circuits and is sized for a chilled water flow rate of 19, 700 LPH, corresponding to a temperature differential of approximately 23 C, thereby delivering a cooling duty of 527 kW.

The evaporator shell is manufactured from carbon steel with a minimum wall thickness of 10 mm using seamless construction, providing excellent mechanical strength and durability. Heat exchange is accomplished through internally grooved copper tubes arranged in a U-bundle configuration, enhancing overall heat transfer efficiency. The evaporator is equipped with 6-inch water inlet and outlet nozzles and is designed for a water-side pressure drop of 0.4 bar. The maximum allowable working pressure on the water side is 10 bar, while the refrigerant side is designed for a pressure rating of 25 bar.

Chilled water circulation through the evaporator is ensured by a centrifugal mono-block pump, rated for 90, 000 LPH at a total dynamic head of 15 meters, driven by a 5.5 kW electric motor.

The condenser is a water-cooled shell and tube type heat exchanger, designed to operate at a condensing saturation temperature (SDT) of +35 C. The condenser is capable of rejecting a total heat load of 718 kW. The shell is fabricated from carbon steel and finished with an epoxy protective coating to provide enhanced corrosion resistance, while the heat transfer surface consists of plain copper tubes assembled in a tube bundle arrangement.

The condenser is provided with 6-inch cooling water inlet and outlet connections and is designed for a cooling water flow requirement of 140, 000 LPH. The water-side pressure drop is limited to 0.4 bar, with a water-side design pressure of 10 bar. The refrigerant-side design pressure is rated at 30 bar.

Cooling water circulation for the condenser is achieved by a centrifugal mono-block pump, rated for 110, 000 LPH at a head of 10 meters, and driven by a 5.5 kW motor suitable for operation on 380415 V, 50 Hz power supply.

The chiller is equipped with a compact screw-type compressor, designed to deliver a cooling output of approximately 550 kW. The compressor is suitable for continuous full-load operation (100%) and supports step or stepless capacity control at 25%, 50%, 75%, and 100%, enabling efficient matching of system capacity to varying cooling demands. The compressor is provided with a star-delta starting arrangement, with Variable Frequency Drive (VFD) operation available as an optional feature. The compressor electrical power input shall be as per system design and actual operating conditions.

FIDEM WATER COOLED SCREW TYPE CHILLER (150 TR)

The equipment offered is a FIDEM manufactured water-cooled screw chiller, bearing model designation FM-WCS-150-407C, and engineered to deliver a nominal refrigeration capacity of 150 TR, equivalent to approximately 527 kW of usable cooling output. The chiller system is configured with two (2) independent refrigerant circuits, ensuring high operational reliability, redundancy during part-load operation, and uniform distribution of compressor load. The unit is designed for operation on a three-phase, 415 V, 50 Hz AC power supply, with a maximum electrical connected load of 112.1 kW and a rated full-load current of 204.8 A. The refrigeration cycle employs R-407C refrigerant, and precise refrigerant flow regulation is achieved through an Electronic Expansion Valve (EEV), enabling stable, efficient, and responsive performance across operating conditions.

The chiller is provided with a water-cooled shell and tube type evaporator, designed for an evaporating saturation temperature (SST) of 10 C. The system is suitable for applications requiring a chilled water supply temperature range of 15 C to 20 C. The evaporator incorporates two (2) refrigerant circuits and is sized for a chilled water flow rate of 19, 700 LPH, corresponding to a temperature differential of approximately 23 C, thereby delivering a cooling duty of 527 kW.

The evaporator shell is manufactured from carbon steel with a minimum wall thickness of 10 mm using seamless construction, providing excellent mechanical strength and durability. Heat exchange is accomplished through internally grooved copper tubes arranged in a U-bundle configuration, enhancing overall heat transfer efficiency. The evaporator is equipped with 6-inch water inlet and outlet nozzles and is designed for a water-side pressure drop of 0.4 bar. The maximum allowable working pressure on the water side is 10 bar, while the refrigerant side is designed for a pressure rating of 25 bar.

Chilled water circulation through the evaporator is ensured by a centrifugal mono-block pump, rated for 90, 000 LPH at a total dynamic head of 15 meters, driven by a 5.5 kW electric motor.

The condenser is a water-cooled shell and tube type heat exchanger, designed to operate at a condensing saturation temperature (SDT) of +35 C. The condenser is capable of rejecting a total heat load of 718 kW. The shell is fabricated from carbon steel and finished with an epoxy protective coating to provide enhanced corrosion resistance, while the heat transfer surface consists of plain copper tubes assembled in a tube bundle arrangement.

The condenser is provided with 6-inch cooling water inlet and outlet connections and is designed for a cooling water flow requirement of 140, 000 LPH. The water-side pressure drop is limited to 0.4 bar, with a water-side design pressure of 10 bar. The refrigerant-side design pressure is rated at 30 bar.

Cooling water circulation for the condenser is achieved by a centrifugal mono-block pump, rated for 110, 000 LPH at a head of 10 meters, and driven by a 5.5 kW motor suitable for operation on 380415 V, 50 Hz power supply.

The chiller is equipped with a compact screw-type compressor, designed to deliver a cooling output of approximately 550 kW. The compressor is suitable for continuous full-load operation (100%) and supports step or stepless capacity control at 25%, 50%, 75%, and 100%, enabling efficient matching of system capacity to varying cooling demands. The compressor is provided with a star-delta starting arrangement, with Variable Frequency Drive (VFD) operation available as an optional feature. The compressor electrical power input shall be as per system design and actual operating conditions.

TECHNICAL SPECIFICATION

FIDEM WATER COOLED SCREW TYPE CHILLER (150 TR)

The offered equipment is a FIDEM manufactured Water Cooled Screw Type Chiller, bearing model number FM-WCS-150-407C, and is designed to deliver a rated cooling capacity of 150 TR, equivalent to approximately 527 kW of refrigeration performance. The chiller assembly consists of two (2) completely independent refrigeration circuits, ensuring high system reliability, operational redundancy, and uniform load sharing. The unit is suitable for operation on a three-phase, 415 V, 50 Hz AC power supply, with a maximum connected electrical load of 112.1 kW and a full-load operating current of 204.8 amperes. The refrigeration cycle utilizes R-407C refrigerant, with precise and responsive refrigerant flow modulation achieved through an Electronic Expansion Valve (EEV).

Evaporator Shell & Tube Construction

The chiller is provided with a water-cooled shell and tube type evaporator, engineered for an evaporating saturation temperature (SST) of 10 C. The system is designed to operate within a chilled water temperature range of 15 C to 20 C. The evaporator is configured with two (2) refrigerant circuits and is designed to handle a chilled water flow rate of 19, 700 LPH, corresponding to a temperature differential of approximately 23 C, thereby delivering a cooling duty of 527 kW.

The evaporator shell is fabricated from carbon steel with a minimum wall thickness of 10 mm using seamless construction, ensuring structural integrity and long service life. Heat transfer is facilitated through internally grooved copper tubes arranged in a U-bundle configuration, which enhances thermal efficiency. The evaporator is equipped with 6-inch water inlet and outlet connections and is designed for a water-side pressure drop of 0.4 bar. The maximum allowable working pressure on the water side is 10 bar, while the refrigerant side is designed for a pressure of 25 bar.

Chilled water circulation through the evaporator is ensured by a centrifugal mono-block pump, rated for 90, 000 LPH at a total dynamic head of 15 meters, driven by a 5.5 kW electric motor.

Condenser Water Cooled Shell & Tube Construction

The condenser is a water-cooled shell and tube type heat exchanger, designed to operate at a condensing saturation temperature (SDT) of +35 C. It is capable of rejecting a total heat load of 718 kW. The condenser shell is manufactured from carbon steel and protected with an epoxy coating to resist corrosion, while the heat exchange tubes are plain copper tubes assembled in a bundle arrangement.

The condenser is provided with 6-inch cooling water connections and is designed for a cooling water flow requirement of 140, 000 LPH. The pressure drop on the water side is limited to 0.4 bar, with a water-side design pressure of 10 bar. The refrigerant-side design pressure is rated at 30 bar.

Cooling water circulation for the condenser is achieved using a centrifugal mono-block pump, rated for 110, 000 LPH at a head of 10 meters, driven by a 5.5 kW motor suitable for operation at 380415 V, 50 Hz.

Compressor Screw Type

The chiller is equipped with a compact screw type compressor, designed to provide a cooling output of approximately 550 kW. The compressor is capable of full-load operation (100%) and supports step or stepless capacity modulation at 25%, 50%, 75%, and 100%, allowing efficient matching of cooling demand under varying operating conditions. The compressor is fitted with a star-delta starting system, with Variable Frequency Drive (VFD) operation available as an optional feature. The compressor power consumption shall be as per system design and actual operating conditions.

FIDEM WATER COOLED SCREW TYPE CHILLER (150 TR)

The offered package comprises a FIDEM make water-cooled screw chiller, designated as model FM-WCS-150-407C, and designed to achieve a nominal refrigeration output of 150 TR, equivalent to approximately 527 kW of effective cooling capacity. The chiller is configured with two (2) fully independent refrigerant circuits, providing high operational dependability, redundancy during partial load operation, and balanced compressor loading. The unit is designed for operation on a three-phase, 415 V, 50 Hz AC electrical supply, with a maximum connected electrical load of 112.1 kW and a full-load current of 204.8 amperes. The refrigeration cycle employs R-407C refrigerant, and accurate refrigerant flow modulation is ensured through an Electronic Expansion Valve (EEV), delivering consistent, efficient, and stable system performance.

The chiller is furnished with a water-cooled shell and tube type evaporator, designed for an evaporating saturation temperature (SST) of 10 C. The system is suitable for applications requiring a chilled water operating temperature range between 15 C and 20 C. The evaporator assembly incorporates two (2) refrigerant circuits and is sized to handle a chilled water flow rate of 19, 700 LPH, corresponding to a temperature differential of approximately 23 C, thereby providing a net cooling output of 527 kW.

The evaporator shell is fabricated from carbon steel with a minimum wall thickness of 10 mm using seamless construction, ensuring high mechanical strength and long service life. Heat exchange is accomplished through internally grooved copper tubes arranged in a U-bundle configuration, which enhances overall thermal efficiency. The evaporator is provided with 6-inch water inlet and outlet connections and is designed for a water-side pressure drop of 0.4 bar. The maximum allowable working pressure on the water side is 10 bar, while the refrigerant-side design pressure is rated at 25 bar.

Circulation of chilled water through the evaporator is maintained by a centrifugal mono-block pump, rated for 90, 000 LPH at a total dynamic head of 15 meters, driven by a 5.5 kW electric motor.

The condenser is a water-cooled shell and tube type heat exchanger, designed to operate at a condensing saturation temperature (SDT) of +35 C. The condenser is capable of rejecting a total heat load of 718 kW. The shell is constructed from carbon steel and protected with an epoxy coating to enhance corrosion resistance, while the heat transfer surface consists of plain copper tubes assembled in a tube bundle arrangement.

The condenser is equipped with 6-inch cooling water inlet and outlet connections and is designed for a cooling water flow requirement of 140, 000 LPH. The water-side pressure drop is limited to 0.4 bar, with a water-side design pressure of 10 bar. The refrigerant-side design pressure is rated at 30 bar.

Cooling water circulation for the condenser is provided by a centrifugal mono-block pump, rated for 110, 000 LPH at a head of 10 meters, driven by a 5.5 kW motor suitable for operation on 380415 V, 50 Hz power supply.

The chiller is equipped with a compact screw type compressor, designed to deliver a cooling output of approximately 550 kW. The compressor is suitable for continuous operation at full load (100%) and supports step or stepless capacity regulation at 25%, 50%, 75%, and 100%, enabling efficient matching of system capacity with varying cooling demand. The compressor is provided with a star-delta starting arrangement, with Variable Frequency Drive (VFD) operation available as an optional feature. The compressor electrical power input shall be as per system design and actual operating conditions.