Centrifugal Water Cooled Chiller with Coolign Tower for HVAC System

• Customization: Available
• Type: Air-Cooled
• Cooling Method: Air-cooled
• Model NO.: 79H
• Unit Structure: Integral
• Selected Voltage: 380V/50HZ
• Compressor Number: 2
• Noise Level: Low
• Application Fields: Industrial
• Application Machine: CNC Machine Tools
• Certification: ISO
• Condition: New
• Product Type: Air Cooled Chiller
• Compressor: Semi- Hermetic, Twin Screw Compressor
• Power Supply: 380V/3pH /50Hz
• Cooling Capacity: 496kw
• Cooling Power Input: 159kw
• Refrigerant: R134A
• Water Side Heat Exchanger: Shell-Tube Heat Exchanger
• Air Side Heat Exchanger: Tube-Fin Heat Exchanger
• Fans Quantity: 8
• Sound Level: 70dB(a)
• Transport Package: Export Packaging
• Specification: 4530 kg
• Trademark: VENTTECH
• Origin: Shanghai, China(Mainland)
• HS Code: 8418692090
• Production Capacity: 1500units Per Month

Product Description

AIR COOLED WATER CHILLER FEATURES:
1. 11 sizes available ranging from 151.2 kW to 752.4 kW cooling capacity.
2. Hermetic scroll compressor for mod. 150÷180, semi-hermetic screw compressor for mod. 250÷760. Each compressor is equipped with a crankcase heater and a thermal overload cut-out; the screw compressor is also complete with a built-in electronic protection with temperature sensor located directly in the motor winding and on the discharge line.
3. External rotor type axial fans, equipped with three phase direct drive motors, low noise 8 poles, protection level IP54, provided with a protective outlet grille.
4. Evaporator built with high efficiency shell and tube type heat exchanger, factory insulated with flexible close cell material.
5. Condenser built with seamless copper tubes mechanically expanded into blue hydrophilic aluminum fins.
6. Refrigerant circuit complete with charge valves, filter drier, sight glass, gas-liquid separator, thermostatic expansion valve, high & low pressure switch. The heat pump unit is completed also with 4-way valve, liquid receiver and one way valve.
7. Hydraulic circuit built with galvanized pipe, complete with water discharge connection for shell and tube heat exchanger and flange type hydraulic connectors.
8. Electric panel consist of: compressor contactor, fan motor contactor, compressor isolating switch, fan protection breaker, phase sequence relay and microprocessor with function display.
9. Automatic operation dramatically reducing maintenance cost thanks to reliable microprocessor system.
 
AIR COOLED WATER CHILLER OPTIONAL:
¨ Metallic filter for hydraulic circuit;
¨ Rubber antivibration mounting.
¨ Remote condenser
¨ BMS
¨ Modular design
¨ T3 (Tropical climate)
¨ Heat recovery
¨ Plate heat exchanger

AIR COOLED WATER CHILLER SPEC: 

Model-VTACC		380Z	500Z	600Z	720Z	880Z	1000Z	1200Z	1420Z
cooling capacity	kW	376	496	594	720	880	996	1203	1419
cooling power input	kW	124	159	187	234	285	318	381	466
power supply	380V/3PH /50Hz
compressor
compressor type	Semi- hermetic, twin screw compressor
Qty/ refrigerant circuit	Nr.	1/1	1/1	1/1	1/1	2/2	2/2	2/2	2/2
Energy adjustment	\	25%,50%,75%,100% 4-step ( 50%~100% stepless as option)
Refrigerant	R134A
Water side heat exchanger
Type	Shell-and-tube heat-exchanger
Water Volume	m3/h	65.4	86	103.2	123.8	151.4	172	206.4	244.2
Water pressure drop	kpa	39	54	56	58	70	75	71	69
Inlet/outlet pipe diameter	mm	DN125	DN125	DN125	DN150	DN150	DN150	DN200	DN200
Water side fouling factor	m2.C/kW	0.086
Air side heat exchanger
Type	M shape Heat exchanger, High efficient exchanger tube + aluminum fins
Fans Quantity	Nr.	6	8	10	10	14	16	16	20
Air Volume	m3/h	23000x6	23000x8	23000x10	23000x10	23000x14	23000x16	23000x16	23000x20
Motor Input	kW	2.8x6	2.8x8	2.8x10	2.8x10	2.8x14	2.8x16	2.8x16	2.8x20
Physical dimensions
Standard type (mm)	L	3810	4680	5880	5880	8800	9460	9460	11700
	W	2280	2280	2280	2280	2280	2280	2280	2280
	H	2370	2370	2370	2370	2430	2430	2430	2430
Shipping weight	kg	3320	4330	5000	5500	7750	8900	9100	11100
Shipping weight	kg	3520	4530	5200	5700	8050	9200	9400	11400
Sound pressure level **	dB(A)	70	70	71	71	72	74	75	75