close control air conditioners - Thermo Control

CLOSE CONTROL
air conditioners
TECNAIR LV
CLOSE CONTROL AIR CONDITIONERS

“The future has an
ancient heart”
CARLO LEVI

TECNAIR LV
CLOSE CONTROL AIR CONDITIONERS

Contents
1. Design choices
for maximum energy saving pag. 6
2. Characteristics and accessories pag. 9
3. Free Cooling system pag. 10
4. Two Sources system pag. 12
5. P Series:
Air conditioners for close control pag. 14
6. G Series: Air conditioners for large data centres:
perimetral installation pag. 18
7. R Series: Air conditioners for large data centers:
in-row installation pag. 22
8. ACC Series:
Axial fan air cooled condensers pag. 26
9. Our solution for Data Center pag. 28
GOST certification
ISO 9001
Cert. n° 273
5

1. Design choices
for maximum energy saving
EDC ompressor
Inverter Inverter Driven Driven
Technology
Technology
BRUSHLESS DC COMPRESSORS
WITH INVERTER TECHNOLOGY
Thanks to the innovative BRUSHLESS DC technology
with inverter, the compressors in the close control air
conditioners can:
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Maintain the thermo-hygrometric conditions of the controlled
areas at a constant level, guaranteeing that the set-point is
respected even under partial load.
Modulate the cooling capacity of the units between 20% and
100% of the maximum capacity.
Reduce the annual energy consumption of the unit by up to
70% compared to a unit with ON-OFF compressors, thus
obtaining a great increase in energy efficiency (EER) in that the
power drawn by a BRUSHLESS DC compressor driven by
inverter unlike other control systems which do not reduce the
number of revolutions of the compressor, reduces in proportion
to the decrease in cooling capacity supplied.
Increase the safety of the plant thanks to the innovative design
of the compressors which permits the perfect return of oil even
at minimum speeds.
EEValve
Electronic Electronic Expansion Valve
Expansion Valve
EEV ELECTRONIC EXPANSION VALVE
Guarantees, compared to the traditional TEV, an annual
energy saving of 25% thanks to:
■
■
Management of the lowest stable gas overheating value at the
coil outlet, thus optimizing its heat transfer.
The possibility, in winter or at night, of letting the condensing
temperature decrease to 35°C with a great reduction in the
compression ratio of the cooling cycle and therefore of the
power draw.
6

ECFan
Variable Variable Air Flow Air Flow
LATEST-GENERATION ELECTRONICALLY
CONTROLLED FANS
The use of composite materials for the impeller and
fan motors with latest-generation BRUSHLESS EC
ELECTRONIC MOTORS has enabled very large increases
in performance levels, such as:
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Power draw reduction by over 25% compared to traditional
units with AC technology. Power draw is also reduced by about
15% compared to the preceding generation of EC fans.
Noise level reduction by over 5 dB(A) at partial loads.
Thanks to integration with the powerful control algorithm, the EC
fans can be regulated to guarantee the following:
1. Ulterior energy savings of over 50% at partial loads by
reducing the speed of the fans as the cooling capacity
requirement decreases.
2. Constant revolution number.
3. Constant air quantity with real-time control through differential
pressure sensors. Optimal control if F7 filters are installed.
4. Constant pressure in the raised floor in order to optimise air
distribution in latest-generation data centers.
ECFan
Variable Variable Air Flow Air Flow
ELECTRONIC FANS IN THE ACC AIR COOLED
CONDENSERS
Using fan motors with BRUSHLESS ELECTRONIC EC
motors also in the air cooled condensers permits:
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Energy saving, at partial loads, of over 45% compared to a
normal AC motor.
Noise level reduction of over 10% of a normal AC fan.
Wide modulation range, making it possible, when external
conditions permit, to manage very low condensing temperature
set-points (35°C) in order to guarantee operation at high
summer temperatures (T cond. 60°C).
7

1. Design choices
for maximum energy saving
ECSurvey
Next Generation Controller
Next Generation Controller
SURVEY MICROPROCESSOR
Thanks to constant efforts in the research and development
of control processes, the close control air conditioners
have one of the most advanced microprocessors available.
It is capable of:
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Managing all the thermo-hygrometric requirements with PID
algorithms with AMBIENT AUTOTUNING function.
Managing, in an integrated manner, the operation of the EEV
valve and the DC inverter with verification of the envelope of the
compressors.
Presenting a graphic display of temperature and humidity, daily
and weekly.
Permitting the user a high degree of supervision of the general
functioning of the plant.
They can also be equipped with:
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FULL GRAFIC interface, with interactive icons and progress bars
to make the controller USER FRIENDLY even for those who are
not familiar with air conditioning equipment.
TOUCH SCREEN user terminal (accessory) for easy access to
function parameters.
Free supervision software for Windows, which enables
supervision and recording of all operational parameters of
the unit.
Free Cooling
Green Green
Energy Energy Technology Technology
FREE COOLING UNIT:
RENEWABLE GREEN ENERGY
Market attention to renewable sources of energy has
encouraged the development of very low environmental
impact units with FREE COOLING function.
■ The innovative control algorithm and careful development of
components in the unit permit energy savings of over 50% to be
made compared to a normal direct expansion unit.
■ The AUTOADAPTIVE SETPOINT function in addition enables the
regulation of the dry cooler fans serving the unit to obtain always
the best set-point of the water temperature as the external
temperature changes. This regulation also permits the energy
saving to be increased by making the fans function at partial load
for most of the time.
8

2. Construction
characteristics
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Certified performance
Very high EER (Energy Efficiency Ratio).
Very limited footprint.
Very quiet operation.
Complete frontal maintenance access if
several machines are positioned side by side
(only for the models highlighted in the
performance table).
Dark grey metal structure on wheels for easy
positioning.
Fire-resistant class 1 thermo-acoustic
insulation panels.
■ Scroll EC compressors with brushless
motors for R410A with inverter for the cooling
capacity modulation.
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■
EEV: electronic expansion valve.
Two- or three-way modulating valve to
regulate cooling capacity of units with chilled
water coils.
Electrical panel equipped with all regulation
and safety devices in compliance with EU
■
■
■
and International Regulations. For units
with compressors a phase controller is
forecast too.
EC (electronically commutated) fan motors
which can be regulated according to three
different modes:
1. Constant rotation speed mode, which
can be selected by microprocessor;
2. Variable air quantity mode depending on
cooling capacity requirements: best solution
in the event of variable endogenous thermal
loads. Permits further important energy
saving;
3. Constant air flow: best choice in case of
installation of F7 efficiency filter;
4. Constant pressure in the double floor or
in the cold pool.
Survey microprocessor with graphic display
to manage temperature, humidity and any
alarms; local network function; it can be
connected to all the major BMS systems.
Large surface G4 efficiency air filters installed
before the cooling coil.
Main accessories
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Immersed electrode humidifier.
Electric reheating coil.
Hot water reheating coil with 3 way valve (on some models only).
Brushless DC compressor wit inverter (on some models only).
RS485 serial communication board.
■ F7 efficiency air filter on air suction instead of the standard G4.
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Water, smoke/fire and out-of-range discharge temperature alarms.
Componennts for local network and telecontrol.
Water condensers with or without pressostatic regulating valve.
Sound damped discharge duct hood.
Duct hood on air supply with F7 filter.
Sandwich panels (on some model only).
Discharge plenum with variable- direction grilles.
Height-adjustable underbases.
Condensate pump.
9

3. Free cooling
system
This system (accessory) uses external air - a source of renewable energy
- instead of or in addition to mechanical cooling. Envisaged for the DX/FC
air conditioners, it consists of a cold water coil integrated with the direct
expansion one with a three way modulating valve controlled by
microprocessor.
Three different operating regimes are therefore possible:
Free Cooling
Green Green
Energy Energy Technology Technology
Only free cooling. This occurs when the external air temperature
is sufficiently low to bring the water circulating in the coil to a value
which fulfils the requirements of cooling in the data center, or more
generally, in the area to be acclimatized. This is the maximum
energy saving scenario as the compressors are always out of
service.
Free cooling + mechanical cooling. If the external air
temperature is higher than that necessary to maintain the water
cooling at the desired temperature, one or more compressors are
switched on for the strategic length of time necessary to reach the
desired conditions. This too is an energy saving situation, even if the
savings are not as high as the preceding example.
Only mechanical cooling without free cooling. This situation
arises when the temperature of the external air is too high to
produce sufficient cooling. In this case the compressors function as
normal. This operation exploits to the full the high energy efficiency
of the refrigerant circuits thanks to the larger size of the coil’s fin
pack. So even using only mechanical cooling helps to keep energy
consumption down compared to other systems.
The water cooled condensers of the refrigerant circuit are provided
with a pressure-switch system to regulate the condensing pressure
(accessory).
10

“FREE COOLING SYSTEM”
Working mode
“WINTER”
(Chilled Water)
“FREE COOLING SYSTEM”
Working mode
“SPRING - AUTUMN”
(Direct Expansion + Chilled Water)
“FREE COOLING SYSTEM”
Working mode
“SUMMER”
(Direct Expansion)
11

4. Two Sources
system
“Two Sources” for the maximum guarantee of continued operation or the
use of excess energy from a centralized plant.
This system (accessory) envisages the installation inside the machine of a
second cooling source, complete with its own regulation and totally
independent of the primary one. Only the aluminium fin pack is common to
the two sources. It is double the size compared to the standard machine,
thus enabling both to reach very high heat exchange efficiency levels.
Two Sources
Twin Safety Twin Safety Technology Technology
The “Two Sources” system guarantees continuity of the cooling
function if, for whatever reason, the primary source is not available:
overload, maintenance, night-time/ seasonal stoppage or for any
type of emergency.
DX/TS: in this application the machine has a direct expansion
cooling source, with one or two compressors, and another with
chilled water. The primary source is normally the chilled water one
connected to the refrigeration plant of the building or to the district
cooling system, and the emergency one is the direct expansion
connected in its turn to a remote air-cooled or a built-in watercooled
condensers. Alternatively, the primary source can be direct
expansion and the emergency one water - groundwater or
acqueduct.
CW/TS: both cooling sources are chilled water coils. The primary
source is normally connected to the refrigeration plant of the
building or to the district cooling system. The emergency source
can be connected to a dedicated water chiller or to water -
groundwater or acqueduct.
12

“TWO SOURCES SYSTEM”
Working mode
“Direct Expansion”
“TWO SOURCES SYSTEM”
Working mode
“Chilled Water”
“TWO SOURCES SYSTEM”
Double water circuit version
13 11

5. Series:
CLOSE CONTROL AIR CONDITIONERS
APPLICATIONS
Designed and constructed for installation in areas with medium to high density of electronic
equipment, the P Series - thanks to its wide range of accessories - also has interesting
applications in industrial areas, power stations, recording studios, conference room and
wherever rigorous control of environmental parameters is required.
Main characteristics
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■
Direct expansion from 6 to 100 kW
OPA: upward air discharge
UPA: downward air discharge.
Chilled water from 10 to 200 kW
OPU: upward air discharge
UPU: downward air discharge.
14

5. Series:
CLOSE CONTROL AIR CONDITIONERS
Upflow air supply
Down flow air supply
16

OPA: direct expansion air conditioners with air cooled or water condensers
and up-flow air supply
Models 71a 111a 141a 211 251 301 302 372 361 461 422 512 491 612 662 852 932
Performance
Tot. cooling cap. kW: 6,9 11,3 14,9 21,5 26,1 31,1 31,3 38,3 37,6 48,2 44,6 52,6 52,8 64,2 69,2 88,0 96,6
Sens cooling cap. kW: 6,7 10,9 12,3 20,6 22,4 29,1 28,9 31,9 36,8 44,3 43,4 46,2 51,7 59,5 61,7 70,1 86,0
Airflow m 3 /h: 2.200 3.200 3.200 7.000 7.000 8.700 8.700 8.700 14.500 14.500 14.500 14.500 17.900 17.900 17.900 17.900 22.500
EER 2,99 3,27 3,39 3,26 3,19 3,21 3,35 3,04 3,36 3,49 3,38 3,21 3,60 3,36 3,32 3,37 3,55
SPL:dB(A) 49 49 49 56 56 58 58 58 63 63 63 63 68 68 68 68 69
Dimensions & weight
Lenght mm. 750 750 750 860 860 1.410 1.410 1.410 1.750 1.750 1.750 1.750 2.300 2.300 2.300 2.300 2.640
Depth mm. 600 600 600 880 880 880 880 880 880 880 880 880 880 880 880 880 880
Height mm. 1.990 1.990 1.990 1.990 1.990 1.965 1.990 1.990 1.990 1.990 1.990 1.990 1.990 1.990 1.990 1.990 1.990
Net weight kg. 180 200 210 270 270 320 340 350 440 450 450 500 540 640 640 660 860
UPA: direct expansion air conditioners with air cooled or water condensers
and down-flow air supply
Models 71a 111a 141a 211 251 301 302 372 361 461 422 512 491 612 662 852 932
Performance
Tot. cooling cap. kW: 6,9 11,3 14,9 21,5 26,1 31,1 31,3 38,3 37,6 48,2 44,6 52,6 52,8 64,2 69,2 88,0 96,6
Sens cooling cap. kW: 6,7 10,9 12,3 20,6 22,4 29,1 28,9 31,9 36,8 44,3 43,4 46,2 51,7 59,5 61,7 70,1 86,0
Airflow m 3 /h: 2.200 3.200 3.200 7.000 7.000 8.700 8.700 8.700 14.500 14.500 14.500 14.500 17.900 17.900 17.900 17.900 22.500
EER 2,97 3,29 3,39 3,28 3,21 3,23 3,38 3,06 3,40 3,47 3,46 3,23 3,62 3,36 3,26 3,38 3,58
SPL:dB(A) 49 49 49 56 56 58 58 58 63 63 63 63 68 68 68 68 69
Dimensions & weight
Lenght mm. 750 750 750 860 860 1.410 1.410 1.410 1.750 1.750 1.750 1.750 2.300 2.300 2.300 2.300 2.640
Depth mm. 600 600 600 880 880 880 880 880 880 880 880 880 880 880 880 880 880
Height mm. 1.990 1.990 1.990 1.990 1.990 1.965 1.990 1.990 1.990 1.990 1.990 1.990 1.990 1.990 1.990 1.990 1.990
Net weight kg. 180 200 210 270 270 320 340 350 440 450 450 500 540 640 640 660 860
OPU: with chilled water coil and up-flow air supply
Models 10a 20a 30 50 80 110 160 220
Performance
Tot. cooling cap. kW: 10,5 19,3 31,0 39,2 69,6 87,7 145,4 178,6
Sens cooling cap. kW: 8,8 15,6 27,8 33,9 60,1 73,0 117,4 148,7
Airflow m 3 /h: 2.200 3.500 7.800 8.300 16.000 17.000 26.400 34.800
EER 32,80 24,71 20,61 22,00 23,12 26,00 26,33 25,24
SPL:dB(A) 47 49 56 56 59 61 64 65
Dimensions & weight
Lenght mm. 750 750 860 860 1.750 1.750 2.640 3.495
Depth mm. 600 600 880 880 880 880 880 880
Height mm. 1.990 1.990 1.990 1.990 1.990 1.990 1.990 1.990
Net weight kg. 155 160 220 240 340 360 540 700
UPU: with chilled water coil and down-flow air supply
Models 10a 20a 30 50 80 110 160 220
Performance
Tot. cooling cap. kW: 10,5 19,3 31,0 39,2 69,6 87,7 145,4 178,6
Sens cooling cap. kW: 8,8 15,6 27,8 33,9 60,1 73,0 117,4 148,7
Airflow m 3 /h: 2.200 3.500 7.800 8.300 16.000 17.000 26.400 34.800
EER 32,80 24,71 20,61 22,00 23,12 26,00 26,33 25,24
SPL:dB(A) 47 49 56 56 59 61 64 65
Dimensions & weight
Lenght mm. 750 750 860 860 1.750 1.750 2.640 3.495
Depth mm. 600 600 880 880 880 880 880 880
Height mm. 1.990 1.990 1.990 1.990 1.990 1.990 1.990 1.990
Net weight kg. 155 160 220 240 340 360 540 700
Notes:
The performance is referred to: refrigerant R410; condensing
temperature: 45°C; inlet air: 24°C - 45% RH; for chilled water:
7/12°C. The SPL is referred to 2 m distance, 1,5 m height, free
field and sound damped discharge mouth. Available static
pressure: 30 Pa. EER = Electro Efficiency Ratio = Total cooling
capacity / compressors power input + fans power input. The
above performances don’t consider the heat generated by
the fans which must be added to the thermal load of the
system.
17

6. Series:
AIR CONDITIONERS FOR LARGE DATA CENTERS:
PERIMETRAL INSTALLATION
APPLICATIONS
Ever-greater importance is being placed on reducing electrical consumption in the design of air conditioning
plant for large data centers.
Servers are installed according to the layouts: “cold corridor” (app. 20-25°C) and “hot corridor” (up to
30-35°C), with very low humidity - never over 30%. These thermo-hygrometric conditions ensure that the
entire cooling capacity of the plant is sensible, render compatible the high temperatures of the water supplied
to the cold water coils and optimize the function of chillers with free cooling systems.
In addition, due to the necessities of cable housing and for the distribution of the enormous quantities of air
required to cool the servers, the height of the false floor has been constantly increased to now reach the
current 600-800 millimetres. This creates an ample space below the air conditioner destined to the installation
of the under-base. This large space under the raised floor was therefore considered as the housing for the
discharge fans. The air conditioners are supplied in two separate sections: the under-base containing the
discharge fans to be installed under the floating floor, and the treatment unit with the exchanger coil, filters
and the electrical panel.
Three great advantages have thus been obtained without increasing the footprint but only exploiting the
space available:
1. At equal footprint, we can dimension the exchanger coil using also the space inside the air conditioner left
free by the fans. In this way it is possible to increase the frontal section of the coil by about 40-50%,
reducing the air side pressure drop and therefore the energy consumption of the fans.
2. Also the size of the air filters, installed upstream the cold coil, is increased in the same way, reducing the
pressure drop and the frequency of the replacement of the same filters.
3. The fans in the under-base expel the treated air horizontally and completely without obstacles, further
increasing the energy efficiency of the machines.
The under-base with fans is supplied with the height indicated on the order by the Customer. The two
sections, shipped separately, are easy to install on-site, requiring only the electrical connection between the
two junction boxes in the machine and in the under-base.
Main characteristics
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■
Direct expansion from 60 to 180 kW
UGA: downward air discharge.
Chilled water from 140 to 300 kW
UGU: downward air discharge.
18

6. Series:
AIR CONDITIONERS FOR LARGE DATA CENTERS:
PERIMETRAL INSTALLATION
Standard execution for perimetral
installation inside the data Center.
The height of the raised floor must
be of at least 600 mm.
In data centers where the limited
height of the raised floor does not
permit this type of installation,
it is still possible to use this
Series of machines by installing
the under-base with the fans
above the floor.
In this case the under-base is
supplied in a standard height (600
mm) and with lateral closure panels.
It is therefor possible to exploit the
advantages of this Series provided
that the height of the ceiling allows
for good suction of air.
For installation outside of the data
center.
20

UGA: direct expansion air conditioners with air cooled or water condensers
and down-flow air supply
Models 461 612 932 1232 1342 1732
Performance
Tot. cooling cap. kW: 45,9 60,6 53,5 107,5 132,7 166,3
Sens cooling cap. kW: 40,3 46,8 53,2 89,0 119,5 134,1
Airflow m 3 /h: 12.000 12.000 24.000 24.000 36.000 36.000
EER 3,47 3,10 3,61 2,73 3,34 3,32
SPL:dB(A) 58 58 68 68 69 69
Dimensions & weight
Lenght mm. 1.470 1.470 2.370 2.370 3.270 3.270
Depth mm. 921 921 921 921 921 921
Height mm. 1.990 1.990 1.990 1.990 1.990 1.990
Net weight kg. 630 680 870 940 1.160 1.250
UGU: with chilled water coil and down-flow air supply
Models 70 150 230 300
Performance
Tot. cooling cap. kW: 59,2 128,0 193,8 256,1
Sens cooling cap. kW: 50,5 105,3 159,0 210,7
Airflow m 3 /h: 12.000 24.000 36.000 44.000
EER 29,33 30,98 31,21 30,35
SPL:dB(A) 58 61 64 66
Dimensions & weight
Lenght mm. 1.320 2.220 3.120 4.020
Depth mm. 921 921 921 921
Height mm. 1.990 1.990 1.990 1.990
Net weight kg. 610 750 930 1.250
Notes:
The performance is referred to: refrigerant R410; condensing temperature: 45°C; inlet air: 24°C - 45% RH; for chilled water: 7/12°C. The SPL is referred to 2
m distance, 1,5 m height, free field and sound damped discharge mouth. Available static pressure: 30 Pa. EER = Electro Efficiency Ratio = Total cooling
capacity / compressors power input + fans power input. The above performances don’t consider the heat generated by the fans which must be added to
the thermal load of the system.
21

7. Series:
AIR CONDITIONERS FOR LARGE DATA CENTERS:
IN-ROW INSTALLATION
APPLICATIONS
The design of air conditioning plant for large data centres increasingly requires the adoption of the concepts
listed below. Indeed, they have now become consolidated international standard practice:
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The racks containing the servers are more often positioned according to the “hot corridor” and “cold
corridor” layout.
The working air temperatures are now allowed to go up to 30-35°C in the hot corridor and 20-25°C in the
cold one. Consequently, also the water temperature rises up to 20-28°C. In this way the free cooling
function is exploited at its best.
Server capacities keep going up while their dimensions keep going down. This means that more servers
can be installed in a rack so that some of these racks, remaining empty, can be removed. At the same time
the heat dissipated rises and more capacity is required from the air conditioners.
The servers work day and night albeit with a night time reduction of their capacity. It is therefore essential
for the air conditioning installation to have an efficient modulating cooling capacity control and to be
designed for the maximum energy saving and minimum environmental impact.
In order to satisfy these requirements, a family of air conditioners has been designed and constructed to
have the same dimensions as the racks, with rear suction from the hot corridor and frontal discharge into
the cold one; with the following advantages:
1. Use of the space freed up in the racks and therefore cold air is distributed as close as possible to the
server i.e. where the heat is generated.
2. Horizontal air suction and also horizontal air discharge: the air flow therefore does not change direction
inside the machine, so avoiding the relative pressure drops and with an important consequent reduction
of the power draw.
Cooling, hydraulic and electrical connections from above or from below.
Main characteristics
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■
Direct expansion from 20 to 40 kW
HRA: horizontal air discharge
Chilled water from 15 to 40 kW
HRU: horizontal air discharge
22

24
7. Series:
AIR CONDITIONERS FOR LARGE DATA CENTERS:
IN-ROW INSTALLATION

HRA: direct expansion air conditioners for in-row installation
Models 231 361
Performance
Tot. cooling cap. kW: 22,8 35,5
Sens cooling cap. kW: 22,8 31,3
Airflow m 3 /h: 7500 7500
EER 3,41 3,41
SPL:dB(A) 61 62
Dimensions & weight
Lenght mm. 600 600
Depth mm. 1180 1180
Height mm. 2000 2000
Net weight kg. 215 215
HRU: air conditioners with chilled water coil for in-row installation
Models 40
Performance
Tot. cooling cap. kW: 42,5
Sens cooling cap. kW: 39,4
Airflow m 3 /h: 10000
EER 21,30
SPL:dB(A) 67
Dimensions & weight
Lenght mm. 600
Depth mm. 1180
Height mm. 2000
Net weight kg. 190
Notes:
The performances are referred to: refrigerant R410; condensing temperature: 45°C; inlet air: 24°C - 45% RH; for chilled water: 7/12°C.
The SPL is referred to 2 m distance, 1,5 m height, free field and sound damped discharge mouth.
Available static pressure: 30 Pa. EER = Electro Efficiency Ratio = Total cooling capacity / compressors power input + fans power input.
The above performances don’t consider the heat generated by the fans which must be added to the thermal load of the system.
25

8. Series:
AXIAL FAN AIR
COOLED CONDENSERS
Main characteristics
■
■
■
ACC/H: horizontal installation and vertical air discharge
ACC/V: vertical installation and horizontal air discharge
ACC/LT: for very low temperature; vertical installation and horizontal air discharge
26

Air cooled condensers to be matched with Tecnair LV air conditioners
Models ACC 8 11 16 19 21 25 29
Performance
Nominal capacity (1) kW 8,3 10,8 16,5 19,9 21,5 24,8 29,8
Air quantity m3/h 2.600 2.200 5.200 4.800 4.400 7.800 7.200
Fans number n. 1 1 2 2 2 3 3
Fans diameter mm 350 350 350 350 350 350 350
Motor power input W 180 180 360 360 360 540 540
Absorbed current Amps 0,85 0,85 1,7 1,7 1,7 1,7 2,5
Sound pressure level (2) dB(A) 40 40 43 43 43 45 45
Internal circuit volume dm3 2,0 3,0 3,0 4,0 5,0 4,0 6,0
Dimensions & weight
Lenght (H - V installation) mm 743 743 1.298 1.298 1.298 1.853 1.853
Depth (H installation) mm 610 610 610 610 610 610 610
Depth (V installation) mm 510 510 510 510 510 510 510
Height (H installation ) mm 906 906 906 906 906 906 906
Height (V installation ) mm 578 578 578 578 578 578 578
Weight kg 20 29 29 33 37 42 48
Models ACC 32 42 50 55 61 74 83
Performance
Nominal capacity (1) kW 32,3 43,1 50,3 56,1 62,0 75,4 84,0
Air quantity m3/h 6.600 8.800 13.600 12.700 14.900 20.400 19.000
Fans number n. 3 4 2 2 2 3 3
Fans diameter mm 350 350 500 500 500 500 500
Motor power input W 540 720 1.250 1.250 1.160 1.880 1.880
Absorbed current Amps 2,5 3,4 5,5 5,5 5,5 8,3 8,3
Sound pressure level (2) dB(A) 45 46 50 50 51 51 51
Internal circuit volume dm3 6,0 10,0 9,0 12,0 14,0 13,0 17,0
Dimensions & weight
Lenght (H - V installation) mm 1.853 2.408 1.895 1.895 2.393 2.705 2.705
Depth (H installation) mm 610 610 905 905 1.110 905 905
Depth (V installation) mm 510 510 470 470 705 470 470
Height (H installation ) mm 906 906 1.070 1.070 1.230 1.070 1.070
Height (V installation ) mm 578 578 830 830 1.040 830 830
Weight kg 54 71 94 102 177 132 144
Notes:
(1) Nominal capacity at 35°C ambient and 50°C condensing temperature; R410A
(2) Sound pressure level in free field at 10 meters from the unit.
Available accessories:
ALUPAINT: for better protection of the aluminium fins (suggested in salt atmospheres);
EC FANS: for energy saving.
27

Our solution for
Data Center
P Series:
Air conditioners close control:
perimetric installation
G Series:
Air conditioners for large data centres:
perimetric installation
R Series:
Air conditioners for large data centers:
in-row installation
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TECNAIR LV
CLOSE CONTROL AIR CONDITIONERS
CLOSE CONTROL
air conditioners

TECNAIR LV
CLOSE CONTROL AIR CONDITIONERS
TECNAIR LV S.p.A.
21040 Uboldo - Varese - Italy
Via Caduti della Liberazione, 53
Phone + 39 02.96.99.11.1
Fax. + 39 02.96.78.15.70
E-mail: sales@tecnairlv.it
www.tecnairlv.it
76030207.1210