Air cooled condensing units for air conditioning with CO2

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AIR CONDITIONING UNITS
Air cooled condensing units
for air conditioning with CO2
Reliable and efficient systems for the future
Introduction
The rising awareness of global warming has increased the demand of sustainable refrigeration solutions incorporating natural refrigerants with low energy consumption.
The technology of CO2 based refrigeration systems today complies with these
demands as well as the demand for reliable and efficient operation.
Application
compSUPER AC - condensing units
constitute the best of and the newest
technology within natural refrigerants
for the applications of:
Air conditioning in office buildings
Air cooling of production facilities
Cooling in food production facilities
Server room and rack cooling
compSUPER AC eliminates the need
for indirect water based systems and
therefore both the installation cost and
the energy consumption is reduced significantly.
Advantages of CO2
100% environmentally friendly
Non toxic, inflammable
Single refrigerant applied
No global warming impact,
GWP=1
No ozone depletion
No zone classification
Low noise
Easy installation and service
Up to 20% less energy consumption
Low cost of installation
Low cost of maintenance
Future proof solution
Produktoversigt
Choosing C O2 as refrigerant saves installation and operating cost ±
and it saves the environment.
How large is the potential savings in your case ?
Ask A DVA NSOR for a thorough analysis.
compFORT ± AC
is a novel product series derived from
Advansors existing products within the
compSUPER range. Hence, the new
products incorporate both the experiences from more than 10 years of dedicated
development work as well as the practical field experiences from more than 50
transcritical systems in operation in European supermarkets and industries.
The product combines many demanded
properties and solutions to always ensure high operational reliability, stable
temperature control and low cost operation and ownership.
CO2 is applied as the only refrigerant,
CO2 is neither flammable nor toxic and
therefore offers many advantages with
respect to installation, safety and maintenance.
How it saves energy
The design criteria of the systems has
been to match the design point COP² as
a minimum² of hydrocarbon and HFC
water chillers working at Northern climate
conditions.
The reduced temperature difference of the
CO2 solution compared to water cooling
system is the key to successfully achieving the design target for energy consumption. As a further consequence, the efficiency exceeds the ones of HFC and hydrocarbon at lower ambient temperatures
thus the seasonal energy consumption of
CO2 is between 10-20% less, depending
on the installation and application.
Ambient
°C
32
28
25
20
15
12
COP
Air cooled HFC chiller
3,10
3,50
3,80
4,20
5,00
5,70
COP
compSUPER AC
3,10
3,46
4,00
5,40
6,90
9,10
How it works:
compSUPER AC is designed as a simple
one stage system for direct expansion.
The units have a special intermediate
pressure receiver fulfilling the same function as the traditional liquid receiver.
The intermediate pressure receiver is designed for 90 bar stand still pressure and
with sufficient volume to facilitate a pump
down operation to stock the entire refrigerant charge in the vessel during all exterior conditions. The liquid is distributed
from the intermediate pressure receiver to
the evaporators and expanded directly
through electronically controlled injection
valves.
For the application of air conditioning a
minimum design pressure of 60 bar of all
system components, including custom
made evaporator coils, injection valves
and controls ensures a reliable and safe
operation. The entire system is based on
Danfoss ADAP COOL technology thus
providing one fully integrated network for
controls and supervision.
Eliminate the water circuits
CO2 technology eliminates the need for
indirect water systems for coils and dry
coolers.
Obviously this results in a reduction of the
cycle temperature differences on both the
cooling and the condensing side. The
elimination of water pumps adds further to
the savings on operating and maintenance costs.
DRY
annual hours
T>ambient
1
10
49
351
1490
2723
Nominal
Energy consumption
Cooling capacity HFC
CO2
kW
kWh/year
kWh/year
360
116
116
360
1029
1040
360
4642
4410
360
30086
23400
360
107280
77739
360
171979
107723
ESEER
3,77
4,12
1,09
European Seasonal Energy Efficiency Rating - Eurovent Certification Programme
315.131
214.429 kWh/year
Model overview:
Model: compSUPER
No. compressors
Condenser
Air cooled
Receiver volume [L]
Swept volume [m³/time]
Cooling capacity [kW]
7°C evaporation / 32°C ambient
Cooling capacity [kW]
-10°C evaporation / 32°C ambient
Mechanical connections
AC 1x0B
AC 2x0B
AC 4x0B
AC 5x0B
AC 6x0B
AC 7x0B
AC 8x0B
1
2
4
5
6
7
8
2 fans
34 dBA
4 fans
37 dBA
6 fans
39 dBA
6 fans
39 dBA
8 fans
40 dBA
12 fans
42 dBA
12 fans
42 dBA
70
70
130
130
130
200
200
6-17
6-35
48 / 71
60 / 89
72 / 107
84 / 124
96 / 142
50
100
172
215
258
301
344
35
65
140
175
210
245
280
Liquid refrigerant supply
Suction gas line @ 7°C
Suction gas line @ -10°C
´&X
´&X
´&X
[´&X
[´&X
[´&X
DN40
DN40
DN40
DN40
DN40
DN50
DN40
DN50
DN50
DN50
DN50
DN65
DN50
DN50
DN65
Hot gas to condenser
Liquid return from condenser
DN20
DN20
DN25
DN20
DN32
DN32
DN32
DN32
DN40
DN32 l
DN40
DN32
DN40
DN32
Electrical connection
400 V
Max. 40 A
400 V
Max. 80 A
400 V
Max. 160 A
400 V
Max. 200 A
400 V
Max. 240A
400 V
Max. 280 A
400 V
Max. 320 A
Standard configuration:
Design pressure LT/MT/HT: 60/90/120 bar
Rear end mounted electrical board with ADAP
COOL
Capacity control: Min. 33%
Optional configuration
PLUG & PLAY solutions containing 60 bar
built-to. fit evaporators for air cooling including evaporator control box (IP67), injection
valves and instrumentation.
Out door installation
LON-communication via Danfoss System
Manager
ADVANSOR A/S
Bautavej 1A - 8210 Aarhus V
T: +45 87441141 - +45 87441151
www.advansor.dk - info@advansor.dk
compSUPER AC - for air conditioning
Product
Model
AC 1x0B
AC 2x0B
A
mm
1200
2000
B
mm
1500
1500
C
mm
780
780
Weight
kg
300
420
compSUPER
compSUPER
compSUPER
compSUPER
compSUPER
compSUPER
compSUPER
AC 4x0B
AC 5x0B
AC 6x0B
AC 7x0B
AC 8x0B
4400
4400
4400
4400
4400
2100
2100
2100
2100
2100
780
780
780
780
780
1300
1500
1700
1900
2100
Dimensions including electrical board
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