Download CO2 cascade 2...380 kW - teko

CO2 cascade
2...380 kW
CASCADE TECHNOLOGY
UP TO 53 BAR
Do you want an environmentally friendly alternative
for your low temperature applications?
Then choose POLAROX and rely on the natural refrigerant CO2.
POLAROX can be combined with any medium temperature unit
e. g. R 134a, propane or ammonia. The cascade system technology from TEKO offers you huge efficiency advantages. You can now
make use of these in small output ranges as well as in big ones
(2...380 kW).
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Cascade technology.
Cost savings.
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Short piping routes lead to small refrigerant charges.
Thus a considerably smaller and therefore cheaper
condenser is used compared to an air-cooled low
temperature unit.
Alternatively, we can also supply a
combined, interconnected and
completely piped medium and low
temperature refrigeration unit.
(Example image R 134a / R 744)
Heat recovery.
The waste heat from refrigeration can be used in a
much more
targeted and effective manner in an „overall” system.
Heat output is significantly higher in combination with
the cascade unit POLAROX.
Environmentally conscious.
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You opt for a future-proof system that uses the natural refrigerant CO2.
You avoid unnecessary electricity consumption by
saving an air-cooled discharge gas desuperheater.
Efficiency-raising.
High medium temperature evaporating temperatures
up to 0 °C prevent energy loss, which impacts positively
on the overall system.
Long-lasting.
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No critical temperature peaks
Pulsation-reducing
High pressure strength on the high pressure side
(up to 53 bar)
Protection of the cascade heat exchanger by means of integrated discharge gas desuperheater.
Maintenance-free.
Low pressures minimize the load on the components
Space-saving.
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Modular-compact structure
Short piping routes
Can be installed directly at the refrigeration points
Saving of the air-cooled discharge gas desuperheater – this facilitates also a clean installation.
Safety.
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Long downtime in the event of a power cut
Condensation due to natural convection
Lower pressure leads to considerably lower leakage rates
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POLAROXone
2...16 KW
Great gain at low power. Also available as a „plus” model with frequency converter.
You can combine the new POLAROXone single compressor cascade units flexibly with any medium temperature refrigeration unit. The cascade unit can be easily installed as retrofit equipment. Take advantage of the efficiency benefits of the
cascade system, now also in the low output ranges – from 2 to 16 kW. Some models
with frequency converter. This means you can optimally adjust the power of the low
temperature unit to the cooling requirements of the individual refrigeration points.
Scope of delivery.
Single-compressor unit completely assembled and piped. All „plus” models are fitted with frequency converter for the optimal capacity control.
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A compressor from Frascold or Bitzer
Convection receiver with desuperheating function
and stop valve in the liquid line
Cascade heat exchanger
Suction and liquid-side insulation including receiver and cascade heat exchanger
Pressure-safe according to DIN EN 378
PSL low pressure switch (pump down) – controlled
by frequency control in „plus” models
Only for „plus” models – switch cabinet including
frequency converter control unit for easy suction
pressure operation, assembled and wired
Optional.
• Liquid set low temperature including drier and
sight-glass
• Assembly to connect to the medium temperature
unit (valves and service connection)
• Pressure cut-out for low pressure protection (PZL),
permanently set, in accordance with Water Resources Act
• Downtime equalising vessel assembly (60, 80, 100
litres). This vessel is delivered loose and can be installed very easily onto the POLAROXone with the
enclosed assembly kit.
• Switch box inclusive pump down circuit, assembled
and wired
Capacity ranges.
2...16 kW at t0 = -30 °C and tC = 0 °C
Condensation output of medium temperature ≈ 3...20 kW
Application range of low temperature.
Condensing temperature between -10 °C and 7 °C
Evaporating temperature between -25 °C and -50 °C
(dependent on the application range of the compressor)
Model
POLAROXone
Cooling capacity*
t0 = -30 °C
tC = 0 °C
kW
2,0
TSTK-2NSL-05K
TSTK-A07-16SK2
3,0
TSTK-2MSL-07K
TSTK-A1-2.5SK2
5,0
TSTK-2KSL-1K
TSTK-A1.5-3SK2
6,3
TSTK-2JSL-2K
inclusive frequency converter:
TSTK-2MSL-07K-plus
1,8...5,4
TSTK-A0.7-16SK2-plus
TSTK-2KSL-1K-plus
3,0...8,7
TSTK-A1-2.5SK2-plus
TSTK-2GSL-3K-plus
5,9...16,0
TSTK-A2.5-5SK2-plus
Max. weight (approx.)
without EV**
kg
150
with EV**
kg
60 L = 217
80 L = 243
100 L = 259
With
without EV** with EV**
mm
mm
860
Dimensions (ca.)
Depth
without EV** with EV**
mm
mm
60 L = 891
80 L = 1.109
100 L = 1.378
633
1.157
803
1.297
900
1.394
Height
mm
700
* Liquid subcooling 0K / suction gas superheat 10K
** EV = Equalising vessel (60, 80, 100 litres)
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POLAROXmulti
3...380 KW
Great gain – high power.
POLAROXmulti is particularly well suited for use in food retail but
also excellent for industrial applications, since the cascade unit can
be easily coupled with NH3 in medium temperature units. The power range is 3 kW to 380 kW.
Scope of delivery.
Rack units completely assembled and piped.
Optional.
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Two to three subcritical compressors by Frascold or
Bitzer
Frequency converters at the main compressor for
optimum capacity control
Oil regulation system
Cascade heat transfer unit including two installed
and insulated EEVs
Convection receiver
Suction and liquid-side insulation including receiver and cascade heat transfer unit
Pressure-safe according to DIN EN 378
HP/LP safety valves, manifold panel, pressure
transducer, LP switch
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Control cabinet (incl. frequency converter, control
unit and wiring)
Pre-wiring of the rack unit (without control cabinet)
Suction cover / suction valve, insulated 19mm
Electronic minimum level indicator
Shuttle valve + 2 safety valves
Low pressure limiter (PZL) fixed settings, according to Water Resources Act
Capacity ranges.
3...380 kW at t0 = -30 °C and tC = 0 °C
Condensation output of medium temperature ≈ 4...500 kW
Application range of low temperature.
Condensing temperature between -10 °C and 7 °C
Evaporating temperature between -25 °C and -50 °C
(dependent on the application range of the compressor)
Model
POLAROXmulti
TPTK2 mit 2xA1-2.5SK2
TPTK2 mit 2x2KSL-1K
TPTK2 mit 2xA2-4SK2
TPTK2 mit 2x2HSL-3K
TPTK2 mit 2x2FSL-4K
TPTK2 mit 2xD3-6SK2
TPTK2 mit 2x2ESL-4K
TPTK2 mit 2xD4-8SK2
TPTK2 mit 2x2DSL-5K
TPTK2 mit 2xD4.5-9SK2
TPTK2 mit 2x2CSL-6K
TPTK2 mit 2xD5-11SK2
TPTK3 mit 3x2ESL-4K
TPTK3 mit 3xD4-8SK2
TPTK3 mit 3x2DSL-5K
TPTK3 mit 3xD4.5-9SK2
TPTK3 mit 3x2CSL-6K
TPTK3 mit 3xD5-11SK2
Cooling capacity at t0 = -30 °C / tC = 0 °C*
Q0 min.
kW
Q0 max.
kW
3,00
13,50
4,50
5,00
20,00
22,50
7,80
35,00
9,50
43,00
11,00
51,00
13,50
62,00
9,50
59,00
11,00
70,00
14,00
85,00
Max. weight
(approx.)
kg
Width
mm
Dimensions (approx.)
Depth
mm
700
2.400
811
Height
mm
1.942
on request
Higher capacities on request.
* Liquid subcooling 0K / suction gas superheat 10K
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TEKO Gesellschaft für Kältetechnik mbH
Carl-Benz-Straße 1
63674 Altenstadt
Germany
Tel.: +49 (0) 60 47 / 96 30-100
Fax: +49 (0) 60 47 / 96 30-100
[email protected]
www.teko-gmbh.com
E: Version 8 – November 2016