Trocadores de calor

Air Cooler Industry AC-LN 1-7 / ACA-LN 2-7 / ACAF-LN 2-7

Fluids Oils (mineral oils, synthetic oils, high viscosity oils,
biological oils, phosphate ester)
Water-glycol (cooling fluid)
HFC pressure fluids
Viscosity AC-LN: 2,000 mm²/s (standard)
ACA-LN / ACAF-LN: see technical data
Temperature range Minimum / maximum ambient temperature:
-20 °C to +40 °C (standard)
Minimum / maximum temperature of the medium: +130 °C
Please contact the technical sales department in the event of
deviating temperatures for applications with water-glycol.
Fan switching frequency at max. fan speed (max. volume of air)
must be avoided when operating a cooler at which the temperature
difference between the medium inlet at the cooler and the ambient
temperature can be greater than +50 °C. Quick changes in the
temperature of the cooling element material can lead to a significant
reduction in service life or to direct damage of the cooling element
due to thermal shock.
Please contact the technical sales department to receive information
about controlled fan drives.
Pressure resistance of the
cooling element
Dynamic operating pressure: 16 bar
Static operating pressure: 21 bar
Fan Axial fan in suction version (standard)
Axial fan in pushing version on request
(note: approx. 10 % less cooling capacity)
Motor Three-phase motor
Efficiency class IE2 (only ≥0.75 kW)
Protection class IP55
Insulation class F
Other versions on request.
ErP The fan unit of the AC-LN corresponds to the minimum efficiency
levels specified in the Ecodesign directive or ErP directive (Energyrelated
Products) 2009/125/EC.
ACA-LN / ACAF-LN 2-3: screw pump
ACA-LN / ACAF-LN 4-5-6: vane pump
ACA-LN / ACAF-LN 7: screw pump with separate motor
Operating pressure:
max. 10 bar (screw pump)
max. 6 bar (vane pump)
Negative suction pressure of the pump: max. -0.4 bar
Pump motor speed: 3,000 rpm
Noise levels See technical data AC-LN and ACA-LN / ACAF-LN
The noise levels are only reference values as the acoustic properties
of a room, connections and reflection have an effect on the noise
Accessories Integrated pressure bypass valve (IBP) or integrated thermal
pressure bypass valve (IBT) (cannot be retrofitted, also see options)
Air filter grid or air filter mat
Vibration damper…