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 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 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

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 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.