Air Cooled Screw Chiller Cooling and Heating

Certification: CE
Condition: New
Refrigerant: R134A/R407c
Heat Exchanger: Shell and Tube
Trademark: AMRTA or OEM
Origin: China
HS Code: 8418612090

The compressor

The unit is equiped with semi-hermetic screw compressor, compared with the piston compressor, semi-hermetic screw compressor has two advantages:

Less parts(About 1/3 of the piston compressor), simple structure, less wearing parts, high reliability and long life;

Compressor suction and exhaust uniform, exhaust temperature is low, vibration is small, not sensitive to wet compression, anti-liquid strike ability.

Tube-fin air-cooled condenser

The tube-fin air-cooled condenser adopts the inverted "V" type layout, on the one hand, it improves the space utilization ratio, increases the heat exchange area, on the other hand, it improves the airflow and heat transfer efficiency, so that improve the unit's cooling and heating capacity.

Throttling equipment

For expansion valve, we select the most advanced products, with a compact overall design, rugged stainless steel diaphragm, and in a wide range of operating conditions to provide stable and accurate control.

Tube-shell evaporator

Using shell and tube structure, the outside is proceeded with fire-retardant,waterproof insulation materials, water side of the working pressure is 1.0MPa.

Evaporator with PVC plastic water board, corrosion resistance. Chilled water along the diaphragm up and down circuitous flow, in order to increase the spoiler effect to improve the evaporator heat transfer capacity.

Using the latest DAC corrugated spiral high efficiency heat transfer tubes, strengthen the fluorine side heat transfer capacity, improve the heat transfer coefficient to ensure that the unit good refrigeration and heating performance.

Electronic control

Air-cooled hot and cold water unit uses a microcomputer as the core of the control system, the control system control precision, anti-interference ability to ensure that the unit safe, reliable and economical operation.

Energy regulation automatic control can make the unit always in the best economic mode point efficient operation.

Protection function complete unit with overload, short circuit protection, frost protection, high and low voltage protection, overheating protection and other functions.

Technical Data
 
Model Unit 150 180 250 320 380 430 500
Cooling capacity * kW 156 180 250 320 380 428 497.6
Heating capacity * kW 180 198 276 353 416 474 550
Compressor
Qty Nr. 1 1 1 1 1 2 2
Cooling power input * kW 49.3 54.2 77.4 96.7 114 131.6 154.8
Cooling current * A 87.8 95.2 134 166 199 229.2 268
Heating power input * kW 48.4 53.2 76 95 112 129.2 152
Heating current * A 86.5 93.7 132 164 196 225.7 264
Energy adjustment steps step 4 4 4 4 4 8 8
Evaporator  
Water flow rate   m3/h 26.7 31 42.8 54.8 65 74 85.6
Water side pressure drop kPa 41 41 42 42 42 42 43
Water pipe  DN 100 100 100 125 125 125 125
Axial Fan
Fan motor number Nr. 4 4 6 6 8 10 12
Power input kW 4*2.2 4*2.2 6*2.2 6*2.2 8*2.2 10*2.2 12*2.2
Current input A 4*5.6 4*5.6 6*5.6 6*5.6 8*5.6 10*5.6 12*5.6
Air flow m3/h 68000 96000 144000 144000 196000 240000 288000
Dimensions
Length mm 2500 2500 3300 3590 4680 5800 6790
Width mm 2160 2160 2160 2160 2160 2160 2160
Height mm 2450 2450 2450 2450 2450 2450 2450
Sound pressure level ** dB(A) 73 73 75 75 78 80 81
Net weight kg 2050 2350 2750 Wood Cnc Router

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