Introduction
Chillers
TurboChill™ R1234ze Air Cooled and FreeCool
17
Chiller Technical Manual 7752785 V1.12.0_10_2018
Evaporator
Flooded evaporator incorporating an internal round tube plate fin heat exchanger. This heat exchanger is used to further
sub-cool refrigerant leaving the condenser extending the potential cooling capacity and as a result, efficiency of the
system. At the same time suction gas vapour that passes over the heat exchanger within the shell is superheated to a
higher temperature, eliminating the risk of wet vapour returning to the compressor. The heat exchanger is insulated with
closed cell polyurethane foam which is to Class O fire rating and the material is UV resistant.
The flooded evaporator results in significant energy savings in compressor operation particularly at part load. Two
immersion heaters and thermostat protect the evaporator against freeze up in ambient temperatures down to -20°C. (in
compliance with Airedale freeze protection policy). Connections for External Trace Heating (230V / 500W available).
Maximum water temperature 42°C. The compressors and evaporator shall be mounted on a rigid galvanised heavy duty
sub frame. Fully weatherproofed electrical panels are situated at one end of the unit.
Turbocor Compressor
Turbocor centrifugal compressor supplied with as standard:
●
Suction and discharge shut off valves
●
Discharge non-return valve
●
Line reactor (for removing additional impedance harmonics and voltage spikes in the ac waveform)
● EMI/EMC filter and comprising of:
o
AC-DC rectifier
o
DC capacitors
o
DC-AC (IGBT) converter
o
Motor/bearing management system and incorporated surge protection
o
Soft start module
o
Magnetic bearing system
o
The compressors are mounted on Turbocor specially designed vibration reducing isolating rubber
mounts
o
Linear capacity modulation is provided by a variable frequency drive
Key benefits of Turbocor compressor technology:
● Oil Free Operation
● More efficient use of heat exchangers
●
No oil entrainment issues – pipe work can be optimised for performance not oil return
●
Variable speed operation offering exact capacity match and optimum part load performance
●
Magnetic bearing system constantly optimises shaft / impeller position
●
Small and light, only 132kg
●
No mechanical contact, very quiet operation
●
Very low start current, only 2A
● The intelligent, self optimising compressor offers near silent, oil free operation and ultra efficient variable speed
control
●
Turbocor compressor shaft and impellers levitate on a magnetic cushion eliminating friction and vibration
resulting in the compressor running at a smooth and reduced sound spectrum
● The TurboChill compressor’s variable speed control offers 2 major benefits:
o
Uses substantially less power at part load and gives accurate set-point control and exact capacity
match
o
The inbuilt electronic soft start produces a very low starting current of just 2A and eradicates the need
to oversize electrical supply components on site
Содержание TurboChill TCC11R04G-01
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