Introduction
20
Chiller Technical Manual 9635376 V1.3.0_06_2019
Chillers
TurboChill™ R513A Air Cooled and FreeCool
Condenser Fans
Fans
TCC
TCF
800 mm diameter EC axial fans
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800 mm diameter AC axial fans
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800 mm diameter High Airflow EC fans*
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Standard features
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Optional features
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Feature not available
* High airflow EC fans are not available with the X type units.
Condenser Fan and Motor - AC
Axial fan assemblies with finger proof grille and incorporating external rotor AC motor technology, capable of highly
accurate discreet speed control. The fans Discharge air vertically and offer maximum performance whilst keeping sound
levels to a minimum.
Energy saving Electronically Commutated (EC) Fan Motor
Each 800 mm diameter fan incorporates on board electronics with AC / DC conversion and inverter driven DC motor
control to offer unparalleled high efficiency levels combined with smooth step-less speed control and quiet operation.
Sickle blades reduce air turbulence to minimise sound levels and power consumption whilst maximising performance.
The long bell mouth design provides improved aerodynamics, up to 10% more air movement, and an extended vertical
throw of air to reduce the chance of air re-circulation. As standard the enclosure is complete with an integral finger proof
grille. The fans offer maximum airflow performance while keeping sound levels to a minimum. A mains EMC filter is
fitted when the standard EC fan option is selected with the unit. The filter is designed for convenient mains connection
within the bus bar chamber. The in built EC fan control module allows for fan speed modulation from 15-100%, an AC
fans modulating range is typically 40-100% of full fan speed. The EC fan presents superior energy efficiency at full
and reduced fan speed compared to the equivalent AC fan motor, offering efficiency savings anywhere between 30 to
100% compared with an AC fan. Fan speeds are factory set depending on sound level variant. Voltage regulated (VR)
fan speed controllers offer a linear response. By comparison the standard EC fan is adjusted on demand via the unit
microprocessor with precision, offering substantial energy savings. The following illustration shows a comparison of the
typical power input required by each method.
Fan speed of 60%
Voltage regulated input power required 60%
EC input power required 18%
EC (Electronically Commutated) Fan Speed Control
Voltage Regulated Fan Speed Control
0
20
40
60
80
100
120
0
20
40
60
80
100
120
Fan Speed %
Input Power %