airhandling units
DESCRIPTION
technical brochureTRANSCRIPT
AirHandling
Units
CS - SERIES
EG
YP
TIA
NGERMAN AIR TREATM
EN
TC
o.
For Air Conditioning Installationsand Industrial Ventilation Plants
Heating - Low pressure hot water- Medium/High pressure hot water- Saturated steam- Electric- Mains or well water- Recirculated brine- Recirculated chilled water- Direct expansion refrigeration
Air Treatment
Air VolumeFrom 0.39 m3/s (1400 m3/h) to 23m3/sec (83000 m3/h), 21 unit sizes.
HumidificationWater spray type : with single or doublebank water spray nozzles .Choice of once through to waste water orpump recirculated water.
FiltrationMediumEfficiency: Disposable flat or pleated
panel typeWashable flat or pleatedpanel typeBag or rigid cartridge typeAutomatic roll filter
Highefficiency: Standard or rigid bag
filters of various lengthsand dust holding capacity
Absolute Standard or large air volume
Activatedcarbon: Cell or cartridge type
Electric MotorThe electric motor is normally installedinside the fan section, in the air stream.
Total Air Pressure DevelopmentUp to 800 Pa - Forward blade Fan Class IUp to 1000 Pa - Backward blade Fan Class IIAll fans are double inlet type and withbelt drive.
Cooling
GENERAL CHARACTERISTICSSummary of the CS Series range availability
Air IntakeFresh air With inlet rain louvre or
cowl, bird screen ordamper with duct type,damper with counter flange
Air mixing With dampers for returnair and fresh air
Air mixingand exhaust With dampers for exhaust,
return and fresh air
CSseries
TECHNICAL DATA
Temperaturetw’ ˚C Inlet water temperaturetw” ˚C Outlet water temperaturets’ ˚C Inlet air temperature - dry bulbts” ˚C Outlet air temperature - dry bulbtu’ ˚C Inlet air temperature - wet bulbtu” ˚C Outlet air temperature - wet bulbtvs ˚C Saturated steam temperaturete ˚C Evaporating temperature
Pressureps Pa Static pressurepd Pa Dynamic pressurept Pa Total pressurepvs bar Actual saturated steam pressure
EnthalpyJ’ cal/kg Total heat air inletJ’’ cal/kg Total heat air outlet
Humidityx’ g/kg Absolute humidity air inletx’’ g/kg Absolute humidity air outletUR % Relative humidity
Vol./Q.tyV m3 /h Air volume
m3 /s Air volumeVw I/h Water quantity
∆tw ˚C Water temperature difference∆t ˚C Air temperature difference∆pw mH2O Water pressure drop∆p Pa Air pressure drop∆J cal/kg Total heat difference∆x g/kg Absolute humidity difference
Velocitycu m/s Air velocitycw m/s Water velocity
CapacityQ Kcal/h Heating capacityQ KFrig/h Cooling capacity
OthersLpa db Sound levelN kw Power installedn rpm Revolutions speedkw % EfficiencyFbp By-pass factorPD2 kg/m2 Dynamic moment
Note:The unit performances and all section diagrams arereferred to following standard air conditions:- Air temperature + 15 ˚C- Air specific weight 1,225 kg/m3
- Atmospheric pressure 760 mm Hg
AirHandlingUnits
Technical Manual presents basicinformation to select our standard rangeof CS Series Air Handling Units.Our manual is divided into two sections.
Section 1 REFERENCE DATAprovides basic information enabling theunit size to be selected, the modular components to be chosen and thetechnical characteristics and constructionfeatures to be summarised.
Section 2 TECHNICAL DATAprovides technical information in theform of data sheet to enable moredetailed selection to be performed tomeet the precise specificationrequirements.
The unit size selection is madeon the basis of two parameters:
the Air volumethe Coil Face air velocity
Each model is identified by a verysimple nomenclature: for exampleCS-200 corresponds to the airvolume of 20000 m3/h at 2,5m/s coil face velocity.
The Selection Diagram showsthe possibility of achieving smalleror greater air volumes for thesame unit by varying the coil facevelocity.
This enables selection to beopt imised in terms of cost ,dimensions, noise criteria, power,etc.
SELECTION DIAGRAM
AIR
VO
LUM
E (x
103)
m3/h
UN
IT S
IZE
CS
100
50
40
30
25
20
15
10
5
4
3
2
12 2,5 3 3,5
680
550
450
370
300
250
200
165
135
110
90
73
60
49
40
32
26
21
17
14
830
AIR VELOCITY (m/s)
UNIT SECTIONS
General description of unit casing
Complete with up to 3 dampers to providemixing control of fresh, recirculated and exhaustair streams.The dampers are available in:
- Extruded aluminium profile blade- Extruded aluminium with tight shut off edge seal
Complete with :- Opposed blades- Shaft- Hand operation levers- Extension for connection of actuator motor or piston
The damper blades are gear wheel driven .
Air mixing box
On request the CS series can be equipped with:- Bulkhead lights with or without external switch- Filter manometers .The unit support is provided by :- Strong steel profiles with holes for unit lifting.- Drain pan with sandwich panel insulation.All units can be easily supplied in separate dividedsections or completely knocked down fortransport, site, space or erection requirements.
The casing of the CS series Air Handling Unitsis composed of :
Self supporting frame in extruded aluminiumprofiles anodised natural colour assembled bycorners to give accurate alignment and easilycleaneable corrosion resistant structure.Sandwich type double skin panels 23 mmthickness with internal thermal insulation ofspecial high density acoustic insulation.The external and internal sheet metal faces ofthe panel can be selected from:- Galvanized sheet steel 0.6 mm thick .- Plastic coated galvanized sheet steel 0.6 mm thick .- External and internal faces can be of different materials.
- Galvanized screws inserted in nylon sleeves areused to fix the panel to the frame and airtightness is assured by an exclusive rubber sealunder the panel.
- Inspection and access doors constructed ofsandwich panels as described above fixed to thecasing frame by air tightening hinges andclosed with nylon handles of design with aprogressive threaded closing device.Mechanically secured exclusive rubber doorseal ensures air tightness .
UNIT SECTIONS
Filter sectionSee our separate Filter catalogue
Air treatment section
The heating and cooling coils for the treatment ofthe air are housed in section and are of finnedblock type, having the following standardcharacteristics:- Copper tube and aluminium fins .- Tube pitch 60 and 30 mm .- Rows pitch 30 mm .- Fins pitch 2.0, 2.5, and 3.0 mm.- (4 and 6 mm for special application).- Tube diameter 5/8”.- Coil framework galvanised sheet steel.- Connections - threaded.- Electric heaters with multi-stage sheathed.
elements with plain surface or extended fin surface dependent on duty.
Fan section
Forward blade and backward blade fans .The fans are always of belt drive, double inlettype, manufactured in galvanized steel sheet, withsteel shaft and ball bearings.
The fan drive is effected through belts oftrapezoidal shape.The motor pulley is made from aluminium or castiron .Fixed and variable pulleys are available .
The complete fan motor assembly will bemounted on a base constructed of extrudedaluminium profiles and mounted on vibrationisolators .Standard vibration isolators are of rubber, withspring type available on request.
The anti-vibration connection mounted betweenthe fan outlet and the casing is made of analuminium profile frame with self-extinguishingcloth.
The foregoing characteristics apply also to thereturn air and exhaust air fan sections.The units with twin fans operating in parallel areequipped with non-return dampers to prevent airre-circulation in the case of one fan not running.
Accessories
We provide as accessories the optional andcomplementary equipment described as follows:
Sound AttenuatorsSee our separate Sound Attenuators catalogue .
Germicidal Lamps SectionThis section is specifically designed for specificapplication requirements.The internal walls are provided with reflectingsurface, manufactured in aluminium, plain orwhite painted finish.The tube shape lamps are installed in therequired number.
Internal Lighting SystemNormally the internal lighting is required for thefilter section, the Humidifier section and the fansection .
UNIT SECTIONS
7 R
8 R
6 R
5 R
4 R
3 R
2 mm
2,5 mm
3 mm
17
14
21
32
26
4049
607390110
135165200250300370450550680830
15 20 25
10
5tu
’ ˚cSelection of coilsWith chilled water coils, the number of rowsnecessary to satisfy the requested coolingcapacity can be immediately determined by thefollowing diagrams, for water 5/10˚C and 7/12˚Crespectively.
WATER COOLING COILS
Selection diagram5/10˚C
The number of rows is found by following thetracing on the diagrams for the example selectionas a function of air inlet conditions, selected unitsize, air velocity through the coil, fins pitch and inrelation to the required cooling capacity.
4
6
8
1012
1416
18 20 u.r. %10090
80
70
60
50
40
40 ts’ ºC2
2,5
30,02
0,05
0,1
0,3
0,5
K Cal/h
1000
500
400
300
200
100
5040
30
20
10
50
40
30
900
500
400
300
200
100
5040
30
20
10
50
40
30
1000
500
400
300
200
100
5040
30
20
10
50
40
30
1000
500
400
300
200
100
5040
30
20
10
50
40
1000
500
400
300
200
100
5040
30
20
10
50
40
1000
500
400
300
200
100
5040
30
20
10
50
403 2,5 22 2,5 3
v. coil Fins pitchm/s mm
3R 4R 5R 6R 7R 8R
m/s
Air
vel
oci
tyco
il b
y-p
ass
fact
or
5
10
15
20
25
30
J - Enthalpy Cal/kg
35
Un
it s
ize
CS
WATER COOLING COILS
Selection diagram 7/12˚C
4
6
8
1012
1416
18 20 u.r. %10090
80
70
60
50
40
40 ts’ ºC 2
2,5
30,02
0,05
0,1
0,3
0,5
K Cal/h
1000
500
400
300
200
100
5040
30
20
10
50
40
30
1000
500
400
300
200
100
5040
30
20
10
50
40
30
1000
500
400
300
200
100
5040
30
20
10
50
40
1000
500
400
300
200
100
5040
30
20
10
50
40
1000
500
400
300
200
100
5040
30
20
10
50
40
1000
500
400
300
200
100
5040
30
20
10
50
403 3,5 22 2,5 3v. coil Fins pitch
m/s mm3R 4R 5R 6R 7R 8R
m/s
Air
vel
oci
tyco
il b
y-p
ass
fact
or
5
10
15
20
25
30
J - Enthalpy Cal/kg
35
Un
it s
ize
CS
7 R
8 R
6 R
5 R
4 R
3 R
2 mm
2,5 mm
3 mm
17
14
21
32
26
4049607390110
135165200250300370450550680830
15 20 25
10
5tu
’ ˚c
FANS
Determination of CS pressure drops
To determine fan characteristics it is absolutelynecessary to calculate the pressure drops,expressed in Pa, of the different sections formingthe unit and to add them to the required externalpressure drop .It will result :
Arrangements for fans
Position of fan outlet for air distribution ducts
Air intake louvresMixing box with air dampersFilter cellsRoll filtersBag filtersSpray humidifierEvaporating package humidifierPreheating coilReheating coilPrecooling coilAfter cooling coilElectric coilOther coilPlenumAbsolute filtersOtherRequired external pressure drop
TOTAL Pa
Dynamic Pressure
Dynamic Pressure and outlet air velocity arecalculated on the full air discharge area includingthat of the cut- off area, and therefore “ducted outlet”conditions. In the case of “free outlet “ the velocitypressure is higher and the new value is obtained bymultiplying the velocity pressure of the “ducted outlet”from the curves, by the correction factor “K” shown inthe table Nr. 2 below.
Ventilatore / Fans
180/200/225
250/280/315/355
400/450/500/560
630/710/800/900/1000
HZ 63
-0.6
-3.7
+2
+5.4
125
-0.2
-3.6
+2.2
+6
250
0
0
+1.3
-0.7
500
-2.7
-1.3
-4.3
-4.4
1000
-5.3
-5.7
-5.6
-4.6
2000
-8.8
-9.6
-7.8
-11.5
4000
-13.5
-13.2
-14.3
-15.4
8000
-17.6
-19.5
-19.1
-22.5
HZ 63
-9
-7.1
-3.2
+2.8
+3.2
+5.5
125
-3.9
-2.2
-1.5
+2.7
+1.7
+1.9
250
-1.2
-1.5
-3
+0.3
+1.3
+1.9
500
-4.7
-8.7
-5.7
-2.1
-3.8
-3.4
1000
-5.6
-4.7
-5.7
-7.1
-6.8
-6.2
2000
-6.6
-8.8
-7.7
7.8
-9.1
-11.3
4000
-9
-9.2
-8.4
-11.3
-13.4
-16.8
8000
-12.8
-13
-13.5
-16.7
-19.9
23.5
Ventilatore / Fans
160/180/200/225
250/280
315/355
400/450/500
560/630/710
800/900/1000
Noise
The noise level shown on each diagram refers to thesound power (”A” filter) and the data on the inlet sidehas been measured in accordance with AMCASTANDARD 300 pict. 2 - configuration“A“. The noise levels of the fans are determined asfollows:- Sound power level-(”A” scale):
Tab. 2ADN = 1.38RDN = 1.6
Lw (A) as catalogue- octive band spectrumLw = Lw (A) + Lw rel. dB (tab. 3- 4)- Sound pressure levela) free fieldLp (A) = Lw (A) - (20log
10 d) -11
b) room conditionsLp (A) = Lw (A) - (20log
10 d) - 7
where d = is a distance of fan
ADNLw (rel)
Correction factor for frequence analysis Tab. 3
RDNLw (rel)
Correction factor for frequence analysis Tab. 4
Forward Blade FanNICOTRA
ADN 160
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
4700
4200
3500
3000
2600
2200
1800
1600
1400
1200
24 31 39 45 49 43 27
32
1.5
1
.8
.6
.4
.3
.2
.15
.1
.05
KW
2500
2000
1000
500
400
300
200
100
80
L w(A) in dB (A)
.05 .1 .2 .3 .4 .5 1 2
.2 .3 .4 .5 1 2 3 4 5
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
160 mm
95
90
85
80
75
RP
M
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
4000
3500
3000
2700
2400
2100
1800
1600
1400
1200
1000
22 28 36 44 52 47 32
32
1.5
1
.8
.6
.4
.3
.2
.15
.1
.05
KW
2500
2000
1000
500
400
300
200
100
80.05 .1 .2 .3 .4 .5 1 2 3
.2 .3 .4 .5 1 2 3 4 5 10
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
180 mm
ADN 180
Lw(A) in dB (A)
PR
ES
SIO
NE
TO
TAL
E
95
90
85
80
75
Forward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
3800
3200
2900
2600
2300
2000
1800
1600
1400
1200
1000
800
29 35 42 47 52 52 39
1.5
1
.8
.6
.4
.3
.2
.15
.1
KW
3500
3000
2000
1000
500
400
300
200
100
80
90
85
75
.05 .1 . 2 .3 . 4 .5 1 2 4
.2 .3 .4 .5 1 2 3 4 5 10
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
200 mm
ADN 200
80
Lw(A) in dB (A)
95
2
.05
3 4
Forward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
3400
3000
2600
2300
2000
1800
1600
1400
1200
1000
900
800
26 32 38 44 52 55 34
1.5
1
.8
.6
.4
.3
.2
.15
KW
3500
3000
2000
1000
500
400
300
200
100
80
90
85
.05 .1 . 2 .3 . 4 .5 1 2 3 4 5
.3 .5 1 2 3 4 5 10
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
225 mm
ADN 225
80
Lw(A) in dB (A)
95
2
.05
4
.1
3
Forward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
3000
2800
2400
2200
2000
1800
1600
1400
1200
1000
900
800
700
22 30 39 48 56 54 39
1.5
1
.8
.4
.3
.2
KW
3500
3000
2000
1000
500
400
300
200
100
80.08 .2 .3 .4 .5 1 2 3 4 6
.3 .5 1 2 3 4 5 10 20
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
250 mm
ADN 250
2
3
90
4
80
85
.6
.15
.1
Lw(A) in dB (A)
7.55
K
95
Forward Blade FanNICOTRA
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
RP
M
2700
2500
2100
1800
1600
1400
1200
1000
800
700
600
29 37 44 51 58 59 42
1.5
1
.8
.4
.3
KW
3500
3000
2000
1000
500
400
300
200
100
80.1 .2 .3 .4 .5 1 2 3 4 5 8
.5 1 2 3 4 5 10 20
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
280 mm
ADN 280
2
3
90
4
.6
Lw(A) in dB (A)
K
.2
.15
.1
95
7.55.511
80
85
Forward Blade FanNICOTRA
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
RP
M
2400
2100
1900
1700
1500
1300
1100
1000
900
800
700
600
500
29 36 43 50 57 60 47
1.5
1
.8
.4
.3
KW
3500
3000
2000
1000
500
400
300
200
100
80.15 .3 .4 .5 1 2 3 4 5 10
1 2 3 4 5 10 20 30
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
315 mm
ADN 315
2
3
90
4
80
85
.6
K
.2
5.5
.1
8 11
95
Lw (A) in dB (A)
Forward Blade FanNICOTRA
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
RP
M
2000
1800
1600
1400
1200
1000
900
800
700
600
500
39 46 53 58 62 61 46
1.5
1
.8
.4
.3
KW
3500
3000
2000
1000
500
400
300
200
100
80.2 .3 .4 .5 1 2 3 4 5 10 14
1 2 3 4 5 10 20 30 40 50
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
355 mm
ADN 355
2
3
4
.6
K
57.5
.2
1015
Lw (A) in dB (A)
90
85
95
Forward Blade FanNICOTRA
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
RP
M
1800
1600
1500
1300
1100
1000
900
800
700
600
500
400
34 43 52 61 67 62 46
1.5
1
.8
.4
.3
KW
3500
3000
2000
1000
500
400
300
200
100
80.2 .5 1 2 3 4 5 10 16
1 2 3 4 5 10 20 30 40 50
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
400 mm
ADN 400
2
3
4
80
85
.6
K
.2
7. 5
.1
1015
6
Lw (A) in dB (A)
95
90
Forward Blade FanNICOTRA
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
RP
M
1500
1400
1200
1000
900
800
700
600
500
400
350
38 45 53 60 66 61 47
1.5
1
.8
.4
.3
KW
2500
2000
1000
500
400
300
200
100
80.25 .4 .5 1 2 3 4 5 10 18
1 2 3 4 5 10 20 30 40 50
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
450 mm
ADN 450
2
3
90
4
80
85
.6
K
.2
95
6
Lw (A) in dB (A)
815
11
Forward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
1300
1200
1100
1000
900
800
700
600
500
400
350
40 49 57 64 66 56 39
1.5
1
.8
.4
.3
KW
2500
2000
1000
500
400
300
200
100
80.4 1 2 3 4 5 10 20 25
2 3 4 5 10 20 30 40 50
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
500 mm
ADN 500
2
3
90
4
80
85
.6
K
.2
95
8
6
Lw (A) in dB (A)
1115
Forward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
1300
1200
1100
1000
900
800
700
600
500
450
400
350
300
38 46 55 64 68 60 44
1.5
1
.8
.4
.3
KW
3500
3000
2000
1000
500
400
300
200
100
80.5 1 2 3 4 5 10 20 32
2 3 4 5 10 20 30 40 50 100
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
560 mm
ADN 560
2
3
4
.6
K
15
6
Lw (A) in dB (A)
K2
10
8
25 37
18.5
90
80
85
95
100
Forward Blade FanNICOTRA
1100
1000
900
800
700
600
500
450
400
350
300
250
36 46 56 64 68 59 42
1.5
1
.8
.4
KW
3500
3000
2000
1000
500
400
300
200
100
80.6 1 2 3 4 5 10 20 30 45
3 4 5 10 20 30 40 50 100
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
RP
M
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
630 mm
ADN 630
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
2
3
4
.6
K
15
6
K2
10
8
18. 5
Lw (A) in dB (A)
90
80
85
95
100
30
45
Forward Blade FanNICOTRA
900850
750
700
600
500
450
400
350
300
250
35 44 54 64 69 60 43
1.5
1
.8
KW
2500
2000
1000
500
400
300
200
100
80.8 2 3 4 5 10 20 30 45
5 10 20 30 40 50 100
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
RP
M
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
710 mm
ADN 710
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
2
3
4
.6
K
15
6
K2
10
8
3045
18.5
90
85
95
100
Lw (A) in dB (A)
Forward Blade FanNICOTRA
800
750
650
600
550
500
450
400
350
300
250
200
38 46 54 63 70 62 44
1.5
1
.8
KW
2500
2000
1000
500
400
300
200
100
801 2 3 4 5 10 20 30 40 55
4 5 10 20 30 40 50 100
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
RP
M
K
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
800 mm
ADN 800
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
2
3
4
15
6
K2
10
8
.5
22
85
100
80
3045
95
Lw (A) in dB (A)
90
Forward Blade FanNICOTRA
700
650
550
500
450
400
350
300
250
200
170
35 44 53 63 70 66 48
1.5
1
KW
2500
2000
1000
500
400
300
200
100
801 2 3 4 5 10 20 30 40 70
5 10 20 30 40 50 100 200
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
GIR
I / m
RP
M
K
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
900 mm
ADN 900
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
2
3
4
15
6
K2
10
8
.6
20
90
85
95
100
80
30 5040
75
Lw (A) in dB (A)
Forward Blade FanNICOTRA
650
600
550
500
450
400
350
300
250
200
160
29 38 49 61 70 67 51
1.5
1
KW
2500
2000
1000
500
400
300
200
100
801.4 3 4 5 10 20 30 40 50 80
10 20 30 40 50 100 200
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
GIR
I / m
RP
M
K
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
1000 mm
ADN 1000
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
2
3
4
15
6
K2
10
8
20
30
3750
75
90
85
95
100
Lw (A) in dB (A)
Forward Blade FanNICOTRA
7500
6800
6000
5500
5000
4500
4000
3500
3000
2500
2000
33 46 57 60 54 41 27
1.5
1.8
.6
.4
.3
.2
.15
.1
KW
35003000
2000
1000
500
400
300
200
100
50
30
90
85
75
.05 .1 . 2 .3 . 4 .5 1 2 2 . 6
.2 .3 .4 .5 1 2 3 4 5
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
1 2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
180 mm
RDN 180
70
65
80
Lw(A) in dB (A)
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
Backward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
7000
6000
5500
5000
4500
4000
3500
3000
2500
2200
42 51 58 62 61 54 43
1.5
1
.8
.6
.4
.3
.2
.15
KW
3500
3000
2000
1000
500
400
300
200
100
80
90
85
75
.1 . 2 .3 . 4 .5 1 2 2 . 6
.4 .5 1 2 3 4 5
2 5 10 50 100 500
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
200 mm
RDN 200
70
80
Lw(A) in dB (A)
2
3
Backward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
6300
5800
5000
4500
4000
3500
3000
2600
2300
2000
41 51 59 65 64 54 40
1.5
1
.8
.4
.3
.2
KW
3500
3000
2000
1000
500
400
300
200
100
80
95
.14 .2 .3 .4 .5 1 2 3 4
.6 1 2 3 4 5 10
2 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
225 mm
RDN 225
Lw(A) in dB (A)
2
3
90
4
75
80
85
Backward Blade FanNICOTRA
Backward Blade FanNICOTRA
RP
M
5400
4600
4000
3600
3200
2800
2400
2000
36 48 60 68 67 56 42
1.5
1
.8
.4
.3
KW
3500
3000
2000
1000
500
400
300
200
100
80.16 .2 .3 .4 .5 1 2 3 4 5
.6 1 2 3 4 5 10
2 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
250 mm
RDN 250
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
2
3
90
4
80
85
.6
Lw(A) in dB (A)
K
75
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
RP
M
4700
4300
4000
3600
3200
2800
2400
2000
1800
1600
1400
45 56 65 70 68 59 47
1.5
1
.8
.4
.3
KW
3500
3000
2000
1000
500
400
300
200
100
80.2 .3 .4 .5 1 2 3 4 5
1 2 3 4 5 10
2 5 10 50 100 500
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
280 mm
RDN 280
2
3
90
4
.6
Lw(A) in dB (A)
K
.2
95
5.5
70
80
85
75
Backward Blade FanNICOTRA
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
RP
M
4300
4000
3500
3200
2800
2400
2000
1800
1600
1400
47 58 67 72 69 58 43
1.5
1
.8
.4
.3
KW
3500
3000
2000
1000
500
400
300
200
100
80.25 .4 .5 1 2 3 4 5 6 8
1 2 3 4 5 10 20
2 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
315 mm
RDN 315
2
3
4
.6
K
5.5 7.5
100
80
85
90
95
Lw (A) in dB (A)
Backward Blade FanNICOTRA
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
RP
M
40003800
3300
2800
2400
2000
1800
1600
1400
1200
50 61 70 74 70 59 44
1.5
1
.8
.4
.3
KW
3500
3000
2000
1000
500
400
300
200
100
80.25 .4 .5 1 2 3 4 5 10
1 2 3 4 5 10 20 30
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
355 mm
RDN 355
2
3
4
.6
K
5.57.5
10
95
100
90
80
85
Lw (A) in dB (A)
Backward Blade FanNICOTRA
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
3400
3100
2800
2600
2300
2000
1800
1600
1400
1200
1000
49 61 72 76 71 58 42
1.5
1
.8
.4
KW
3500
3000
2000
1000
500
400
300
200
100
80.4 1 2 3 4 5 10 14
2 3 4 5 10 20 30 40 50
2 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40 50
v e l o c i t y p r e s s u r e
m3/ s
m3/ h
m/ s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
400 mm
RDN 400
2
3
90
4
80
85
.6
K
95
7. 5
100
11
5
Lw (A) in dB (A)
RP
M
Backward Blade FanNICOTRA
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
3100
2800
2500
2200
2000
1800
1600
1400
1200
1100
1000
900
56 65 73 77 74 62 44
1. 5
1
.8
.4
KW
3500
3000
2000
1000
500
400
300
200
100
80.4 1 2 3 4 5 10 16
2 3 4 5 10 20 30 40 50
1 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/ h
m/ s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
450 mm
RDN 450
2
3
4
.6
K
7. 5
5
10
Lw (A) in dB (A)
90
80
85
95
100
15
RP
M
Backward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
2800
2500
2300
2100
1800
1600
1400
1200
1000
900
800
58 67 74 77 73 64 52
1.5
1
.8
KW
3500
3000
2000
1000
500
400
300
200
100
80.7 1 2 3 4 5 10 18
3 4 5 10 20 30 40 50
2 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
500 mm
RDN 500
2
6
8
.6
K
15
11
3
4
Lw (A) in dB (A)
90
80
85
95
100
Backward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
2600
2300
2000
1800
1600
1400
1200
1000
850
700
62 70 76 77 73 62 47
1.5
1
.8
KW
3500
3000
2000
1000
500
400
300
200
100
801 2 3 4 5 10 20 25
5 10 20 30 40 50
3 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
560 mm
RDN 560
2
6
90
8
80
85
.6
K
95
15
100
10
3
4
K2
2530
18.5
Lw (A) in dB (A)
Backward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
2300
2000
1800
1600
1400
1200
1000
900
800
700
600
58 67 75 79 78 69 54
1.5
1
.8
KW
3500
3000
2000
1000
500
400
300
200
100
801 2 3 4 5 10 20 30
5 10 20 30 40 50 100
2 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
630 mm
RDN 630
2
6
8
.6
K
15
10
3
4
K2
4018.5
Lw (A) in dB (A)
25
90
100
95
85
80
30
Backward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
2000
1700
1500
1300
1200
1100
1000
900
800
700
600
69 74 78 79 75 65 51
1.5
1
KW
3500
3000
2000
1000
500
400
300
200
100
801. 4 2 3 4 5 10 20 30 40
6 10 20 30 40 50 100
2 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
L–R
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
710 mm
RDN 710
2
6
90
8
K
15
10
3
4
K2
45
Lw (A) in dB (A)
25
3522
100
95
85
105
Backward Blade FanNICOTRA
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
1600
1400
1300
1200
1100
1000
900
800
700
600
500
62 70 76 79 74 63 46
1.5
1
KW
3500
3000
2000
1000
500
400
300
200
100
801.6 3 4 5 10 20 30 40 50
6 10 20 30 40 50 100
2 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
K
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
800 mm
RDN 800
2
6
8
15
10
3
4
K2
2522
90
100
95
85
105
Lw (A) in dB (A)
4535
Backward Blade FanNICOTRA
GIR
I / m
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
1600
1500
1300
1200
1100
1000
900
800
700
600
500
400
62 69 76 79 78 70 57
1.5
1
KW
3500
3000
2000
1000
500
400
300
200
100
802 3 4 5 10 20 30 40 60
10 20 30 40 50 100 200
2 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
K
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
900 mm
RDN 900
2
6
8
15
10
3
4
K2
30
20
4075
60
50
90
100
95
85
105
80 Lw (A) in dB (A)
Backward Blade FanNICOTRA
GIR
I / m
RP
M
Ins ta l la t ion t ype : f ree in le t , duc ted ou t le t
Effects of appurtenances in airstream not includedPower rating kw does not include drive Losses
1350
1200
1050
900
800
700
600
500
450
400
58 69 77 79 74 59 42
KW
3500
3000
2000
1000
500
400
300
200
100
802.4 4 5 10 20 30 40 50 80
10 20 30 40 50 100 200
2 5 10 50 100 500 1000
a i r o u t l e t v e l o c i t y
volume
2 3 4 5 10 20 30 40
v e l o c i t y p r e s s u r e
m3/ s
m3/h
m/s
PaN/m2
x1000
K
TOTAL EFF. %
WHEEL DIAMETER
= 1.2 Kg/ m3
Pa
N/m
2
TO
TAL
PR
ES
SU
RE
1000 mm
RDN 1000
2
6
8
15
10
3
4
K2
37
20
50
25
90
100
85
105
Lw (A) in dB (A)
75
60
95
Backward Blade FanNICOTRA
APPLICATIONSThe double inlet TA series centrifugal fans, forwardcurvedblade fanwheels, are naturally suited for venti-lating and air conditioning systems, both civil and in-dustrial applications , for heating and cooling unitsand warm air generators.This centrifugal fan series is projected for handlingclean air. Discharge volumes up to 100.000 cu m/h.Static pressures up to 150 mm H2 OTemperatures up to 70°
CONSTRUCTION DETAILSThe fans of this series are produced with particularcare and structurally very rugged.
The SCROLLS are made of stamped steel plates. Ca-sing sides, cut from a single plate, are electrically wel-ded to the scroll. A deflector plate is fixed with selftapping screws to the diffuser.
The DOUBLE SECTION FANWHEELS aer sheet con-struction with forward curved plates. Disks and rimsare well oversized. Blades are beaded or riveted todisks and rims. Each fanwheel is carefully balanced,both statically and dinamically.
SHAFT and BEARINGS are produced with particularcare, as far as dimensions and quality are concerned.The supports of all ball bearings are prelubrified,as toguarantee, under normal working and environmentalconditions, a troubleless and longlasting operation.
The FRAMES of the TA/R series are constructed withsteel bars, so as to form a frame cube and are electri-cally welded.
FINISHESZinc plated finish: for high corrosion resistance.Special finish: series TA/R with aluminium scroll.
TYPES AVAILABLEThe following types of series TA centrifugal fans areproduced and available:
– TA/S: includes 11 types, from 7/7 to 18/18, withdischarge capacities of up to 18.000 cu m/hand static heads of up to 80 mm H2 OThese models have been designed to meetmaximum simplicity and economy require-ments, without giving up precision or strength.
– TA/R: available in 20 sizes from 7/7 to 30/28 withdischarge capacities of up to 60.000 cu m/h, and static heads of up to 80 mm H2 O for1stclass fans and 150 mm H2 O for 2nd classfans (see characteristic diagrams).The fans of this series are mounted in a fra-me,allowing for orientation in 4 directions.
– 2TA/R: available up to size 30/28, single shaft with two lateral bearings.Performance of these fans, in comparisonto single fans is approximately the follo-wing:— Delivery : x 2— Pressure : x 1— RPM : x 1,05— Power : x 2,15— Max allowable fan RPM : x 0,7
– 3TA/R: available up to size 18/18, single shaft withtwo lateral bearings.The performance of these fans, if comparedto single fans, is approximately the follo-wing:— Delivery : x 3— Pressure : x 1— RPM : x 1,08— Power : x 3,25— Max allowable fan RPM : x 0,7
ACCESSORIESa) BASE SUPPORTS in pre-drilled heavy duty steel
plate, ready for mounting in any position around the ventilator scroll in the TA/S version.Supplied with fasteners and assembly hardware.
b) MOTOR SUPPORT, to be mounted in a number of positions around the fan scroll in the TA/S version, with axial and tangential motor adjustments, and regulation of transmission tension. Supplied with necessary fasteners.
c) FIXED PULLEYS IN ALUMINIUM for ventilator fan shaft mounting, one groove for section A,trapezoi- dal belts, in aluminium for 100 - 130 - 150 - 180 pitch diameters.
d) VARIABLE PITCH PULLEYS IN ALUMINIUM for motor shaft mounting,one grove for section A and B, trapezoidal belts, as to allow for an about 30% fan RPM regulation, when motor is stopped.
In aluminium for the following pitch diameters:
from 60 to 75 mm,from 70 to 85 mm andfrom 92 to 113 for section "A" belts
from 63 to 79 mm,from 73 to 95 mm andfrom 100 to 130 for section "B " belts
N.B.: section " A " = 13x8 mm section " B " = 17x11 mm
e) MOTOR MOUNTS for fan case mounted motors in the TA/R and 2 TA/R versions,with motor axial andtangential adjustments.Supplied with necessary fasteners.
f) VIBRATION DAMPER, produced from a glass- neo-prene material fastened two galvanized steel strips.Maximum operating temperature allowed is 95°C. To be mounted when the fan has to be thouroughly insulated from ducts, as to avoid all interferences and subsequent noises and vibrations.
g) DRIVE SAFETY GUARD CARTERS - The employ-ment of safety carter guards to be mounted as belt-drive protection is recommended as to eliminate whatever risk of injuries to personnel.
h) COMMON MOTOR AND FAN MOUNTINGBASE.
i) BASE VIBRATION DAMPERS to cut down transmis- sion of vibrations between the fan and the suppor- ting frame.Thus, the fan is completely insulated from its foun- dations.
DESCRIPTION
EXAMPLE
HOW TO USE THE DIAGRAMS
a) Performance curves refer to double intake fans. The following information is reported on the per- formance charts:
– discharge volume in cu m/h - logarithmic scale
– discharge volume in cv m/sec - logarithmic scale
– static pressure in mm H2 O – logarithmic scale
– velocity pressure in mm H2 O - logarithmic scale
– outlet velocity in m/sec. - logarithmic scale
– 1st and 2nd class boundary
– delivery -pressure curves
– delivery-pressure curves
– revolutions per minute– RPM – logarithmic scale
– brake horsepower curves
– noise level curves
– fan wheel diameter
– number of blades
– peripheral speed
– blade surface
– RPM speed limits for the two classes
– maximum installed power
– fan weight
b) Sample of calculation.Assuming a double intake centrifugal fan has to beselected to meet the following requirements:
– volume (Q) : 3.400 cu m/h
– static head (p. st.) 35 mm H2O
Starting from point A, corresponding to the 3.400cu m/h required, continue upwards vertically andcross at point X the horizontal line draw to B, in cor-respondence to a static head pressure of 35 mmH2OOn the TA 10/10 diagram the following fan cha-racteristics can be directly read off:
– revolutions per minute n = 1170 R.P.M.
– brake hors power P inst = 0,75 metric H.P.
– total efficency ηT = 0,65
– discharge velocity VU = 10 m/s
– velocity pressure P din = 6 mm H2O
– noise level LA = 72 dBA
– Revolutions per minute – Brake horsepower-metric H.P. – Noise level dBA
1.000 1.500 2.000 3.000A 4.000 5.000 6.000 8.000 10.000
0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 15 2 3
0,3 0,4 0,5 1 1,5 2 3 4 5 10 15 20 30 40 50 100
3 4 5 6 7 8 9 10 15 20 30
Q m3/h
Q m3/sec.
Vu. m/sec.
1100
12001300
14001500
16001700
1800
2000
2200
2400150
100908070
60
50
40
30
20
15
109876
5
4
3
Hst mm H2O
Giri
al 1
’
Hst
[m
m H
2O]
x 9
,81
= [P
a]
η t = 0,67
70
60
50
40
30
20
15
10987
6
5
4
3 H [
mm
H2O
] x
9,8
1 =
[P
a]
Hd [mm H2O] x 9,81 = [Pa]
η t = 0,64
η t = 0,58
600
1a C
lass
e
2a C
lass
e
500
700
800
900
1000
B
1009080
Hd
60
75
80
650,10
0,25
0,33
0,5
7,5
1
Hd
85
POTE
NZA
ASS
OR
BIT
A [C.V
.] X
0,73
5 =
[Kw
]
90
1,5
2
3
4
5,5
0,75
X
70
TA 7-7
Revolutions per minuteBrake horsepower - metric H.P.Noise level dBA
Ht = Total pressure
Hst = Statics pressure
Hd =Dynamics pressure
Ht = Hst + Hd
ηt = Total efficiency
Fanwheel diameter
Number of blades
PD2 (kgxm2)
Peripheral velocity
Blade surface
Max. allowable fanRPM
Max. installed power(metric H.P.)
Fan net weight
200 mm
40
0.08
n x 0.0105 m/s
0.046 m2
I class II class2.400
TA-S: 1.5TA-R: 1.5
TA-S: 5 kgTA-R: 6 kg
Max. circulating air temperature: 70°CData refer to standerd air at 15°C, 760 mm Hg (γ = 1.22 kg/cu m)Ptot = Pst + Pdin
800
900
1000
11001200
13001400
15001600
17001800
19002000
2200
2400
150
100908070
60
50
40
30
20
15
10987
6
5
4
3
Hst mm H2O
Giri
al 1
’
Hst
[m
m H
2O]
x 9
,81
= [P
a]
η t = 0,65
40
30
20
15
10987
6
5
4
3 H [
mm
H2O
] x
9,8
1 =
[P
a]
700
Hd [mm H2O] x 9,81 = [Pa]
η t = 0,60
η t = 0,58
60
75
80
55 0,05
0,170
0,25
0,33
0,5
0,75
1
Hd
85
POTE
NZA
ASS
OR
BITA
[C.V
.] X
0,7
35 =
[Kw
]
400 600 800 1.000 1.500 2.000 3.000 4.000 Q m3/h
0,09 0,1 0,15 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 Q m3/sec.
0,2 0,3 0,4 0,5 1 1,5 2 3 4 5 10 15 20 30 40
2 3 4 5 6 7 8 9 10 15 20 Vu. m/sec.
CHARACTERISTIC CURVES
TA 9-9
Revolutions per minuteBrake horsepower - metric H.P.Noise level dBA
Ht = Total pressure
Hst = Statics pressure
Hd =Dynamics pressure
Ht = Hst + Hd
ηt = Total efficiency
Fanwheel diameter
Number of blades
PD2 (kgxm2)
Peripheral velocity
Blade surface
Max. allowable fanRPM
Max. installed power(metric H.P.)
Fan net weight
250 mm
33
0.12
n x 0.0131 m/s
0.078 m2
I class II class2.000 2.400
I class II classTA-S: 3TA-R: 3 5.62TA-R: 4 5.53TA-R: 4
TA-S: 8kg TA-R: 9kg2TA-R: 30kg 3TA-R: 48kg
Max. circulating air temperature: 70°CData refer to standerd air at 15°C, 760 mm Hg (γ = 1.22 kg/cu m)Ptot = Pst + Pdin
600 1.000 1.500 2.000 3.000 4.000 5.000 6.000 Q m3/h
0,15 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 1,5 2 Q m3/sec.
0,2 0,3 0,4 0,5 1 1,5 2 3 4 5 10 15 20 30 40
2 3 4 5 6 7 8 9 10 15 20 Vu. m/sec.
800
900
1.000
1100
1200
13001400
15001600
17001800
19002.000
2200
2400
150
100908070
60
50
40
30
20
15
10987
6
5
4
3
Hst mm H2O
Giri
al 1
’
Hst
[m
m H
2O]
x 9
,81
= [P
a]
η t = 0,68
70
60
50
40
30
20
15
10987
6
5
4
3 H [
mm
H2O
] x
9,8
1 =
[P
a]700
Hd [mm H2O] x 9,81 = [Pa]
η t = 0,65
η t = 0,582600
600
500
1a C
lass
e
2a C
lass
e
60
75
80
65
0,10
700,25
0,33
0,5
0,75
1
Hd
85
POTE
NZA
ASS
OR
BIT
A [C.V
.] X
0,73
5 =
[Kw
]
90
1,5
2
3
4
CHARACTERISTIC CURVES
TA 10-10
Revolutions per minuteBrake horsepower - metric H.P.Noise level dBA
Ht = Total pressure
Hst = Statics pressure
Hd =Dynamics pressure
Ht = Hst + Hd
ηt = Total efficiency
Fanwheel diameter
Number of blades
PD2 (kgxm2)
Peripheral velocity
Blade surface
Max. allowable fanRPM
Max. installed power(metric H.P.)
Fan net weight
280 mm
39
0.16
n x 0.0146 m/s
0.0955 m2
I class II class1.800 2.200
I class II classTA-S: 3TA-R: 3 5.52TA-R: 4 5.53TA-R: 4
TA-S: 9kg TA-R: 11kg2TA-R: 36kg 3TA-R: 55kg
Max. circulating air temperature: 70°CData refer to standerd air at 15°C, 760 mm Hg (γ = 1.22 kg/cu m)Ptot = Pst + Pdin
1.000 1.500 2.000 3.000 4.000 5.000 6.000 8.000 10.000 Q m3/h
0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 15 2 3 Q m3/sec.
0,3 0,4 0,5 1 1,5 2 3 4 5 10 15 20 30 40 50 100
3 4 5 6 7 8 9 10 15 20 30 Vu. m/sec.
800
900
1000
1100
12001300
14001500
16001700
1800
2000
2200
2400150
100908070
60
50
40
30
20
15
10987
6
5
4
3
Hst mm H2O
Giri
al 1
’
Hst
[m
m H
2O]
x 9
,81
= [P
a]
η t = 0,67
100908070
60
50
40
30
20
15
10987
6
5
4
3 H [
mm
H2O
] x
9,8
1 =
[P
a]
700
Hd [mm H2O] x 9,81 = [Pa]
η t = 0,64
η t = 0,58
600
500
2a C
lass
e
1a C
lass
e
60
75
80
650,10
700,25
0,33
0,5
0,75
1
Hd
85PO
TEN
ZA A
SSO
RB
ITA [C
.V.]
X 0,
735
= [K
w]
90
1,5
2
3
4
5,5
7,5
CHARACTERISTIC CURVES
TA 12-12
Revolutions per minuteBrake horsepower - metric H.P.Noise level dBA
Ht = Total pressure
Hst = Statics pressure
Hd =Dynamics pressure
Ht = Hst + Hd
ηt = Total efficiency
Fanwheel diameter
Number of blades
PD2 (kgxm2)
Peripheral velocity
Blade surface
Max. allowable fanRPM
Max. installed power(metric H.P.)
Fan net weight
330 mm
45
0.4
n x 0.0173 m/s
0.135 m2
I class II class1.500 1.800
I class II classTA-S: 4TA-R: 5.5 7.52TA-R: 7.5 103TA-R: 10
TA-S: 16kg TA-R: 22kg2TA-R: 56kg 3TA-R: 96kg
Hd [mm H2O] x 9.81 = [Pa]
0,2 0,3 0,4 0,5 1 1,5 2 3 4 5 10 15 20 30
2015109 Vu. m/sec.8765432
0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 1,5 2,52 3 Q m3/sec.
Q m3/h1.000 1.500 2.000 3.000 4.000 5.000 6.000 8.000 10.0003
4
5
6789
10
15
20
30
40
50
60
708090
100
150
Hst
[m
m H
2O]
x 9,
81 =
[P
a]
Hst mm H2O
H [
mm
H2O
] x
9,81
= [
Pa]
3
4
5
678910
15
20
30
40
50
60
70
0,63η t =
η t = 0,68η t = 0,62
600
700
800
900
1000
1100
12001300
14001500
16001700
18001900
Giri
al 1
,
1a c
lass
e
2a c
lass
e
65
70
75
80
85
0,35
0,5
1
1,5
2
3
4
5,5
75
0,75
Hd
POTE
NZA
ASS
OR
BITA
[C.V
.] X
0,73
5 =
[Kw
]
Max. circulating air temperature: 70°CData refer to standerd air at 15°C, 760 mm Hg (γ = 1.22 kg/cu m)Ptot = Pst + Pdin
CHARACTERISTIC CURVES
1.500 2.000 3.000 4.000 5.000 6.000 8.000 10.000 15.000 20.000 Q m3/h
0,5 0,6 0,7 0,8 0,9 1 1,5 2 2,5 3 4 5 6 Q m3/sec.
0,3 0,4 0,5 1 1,5 2 2,5 3 4 5 10 15 20 30 40
3 4 5 6 7 8 9 10 15 20 2,5 30 Vu. m/sec.
800
900
1000
1100
1200
13001400
15001600
1700150
100908070
60
50
40
30
20
15
109876
5
4
3
Hst mm H2O
Giri
al 1
’
Hst
[m
m H
2O]
x 9
,81
= [P
a]
η t = 0,64
908070
60
50
40
30
20
15
10987
6
5
4
3 H [
mm
H2O
] x
9,8
1 =
[P
a]
700
Hd [mm H2O] x 9,81 = [Pa]
η t = 0,64
600
500
2a C
lass
e
1a C
lass
e
η t = 0,69
75
80
65
70
0,5
0,75
1
Hd
85PO
TEN
ZA A
SSO
RBI
TA [C
.V.]
X 0,
735
= [K
w]
90
1,5
2
3
4
5,5
7,5
10
15
0,35
60
TA 15-15
Revolutions per minuteBrake horsepower - metric H.P.Noise level dBA
Ht = Total pressure
Hst = Statics pressure
Hd =Dynamics pressure
Ht = Hst + Hd
ηt = Total efficiency
Fanwheel diameter
Number of blades
PD2 (kgxm2)
Peripheral velocity
Blade surface
Max. allowable fanRPM
Max. installed power(metric H.P.)
Fan net weight
395 mm
51
0.9
n x 0.0206 m/s
0.190 m2
I class II class1.300 1.700
I class II classTA-S: 5.5TA-R: 7.5 102TA-R: 10 153TA-R: 15
TA-S: 22kg TA-R: 30kg2TA-R: 80kg 3TA-R: 139kg
Max. circulating air temperature: 70°CData refer to standerd air at 15°C, 760 mm Hg (γ = 1.22 kg/cu m)Ptot = Pst + Pdin
CHARACTERISTIC CURVES
3.000 4.000 5.0006.000 8.000 10.000 15.000 20.000 30.000 40.000 Q m3/h
0,9 1 1,5 2 2,5 3 4 5 6 7 8 9 10 Q m3/sec.
1 1,5 2 3 4 5 6 7 8 9 10 15 20 30 40 50 100
4 5 6 7 8 9 10 15 20 25 30 40 Vu. m/sec.
800
900
1000
1100
12001300
150
100908070
60
50
40
30
20
15
109876
5
4
3
Hst mm H2O
Giri
al 1
’
Hst
[m
m H
2O]
x 9
,81
= [P
a]
η t = 0,65
H [
mm
H2O
] x
9,8
1 =
[P
a]
600
Hd [mm H2O] x 9,81 = [Pa]
η t = 0,64
500
400
2a C
lass
e
1a C
lass
e
η t = 0,69
700
908070
60
50
40
30
20
15
109876
5
4
3
100
75
80
0,75
1
Hd
85
POTE
NZA
ASS
OR
BITA
[C.V
.] X
0,73
5 =
[Kw
]
90
1,5
2
3
4
5,5
7,5
10
15
2025
70
65
TA 18-18
Revolutions per minuteBrake horsepower - metric H.P.Noise level dBA
Ht = Total pressure
Hst = Statics pressure
Hd =Dynamics pressure
Ht = Hst + Hd
ηt = Total efficiency
Fanwheel diameter
Number of blades
PD2 (kgxm2)
Peripheral velocity
Blade surface
Max. allowable fanRPM
Max. installed power(metric H.P.)
Fan net weight
470 mm
53
2.3
n x 0.0246 m/s
0.267 m2
I class II class1.000 1.300
I class II classTA-S: 5.5TA-R: 7.5 102TA-R: 15 253TA-R: 20
TA-S: 38kg TA-R: 53kg2TA-R: 126kg 3TA-R: 200kg
Max. circulating air temperature: 70°CData refer to standerd air at 15°C, 760 mm Hg (γ = 1.22 kg/cu m)Ptot = Pst + Pdin
CHARACTERISTIC CURVES
TA 20-20
Revolutions per minuteBrake horsepower - metric H.P.Noise level dBA
Ht = Total pressure
Hst = Statics pressure
Hd =Dynamics pressure
Ht = Hst + Hd
ηt = Total efficiency
Fanwheel diameter
Number of blades
PD2 (kgxm2)
Peripheral velocity
Blade surface
Max. allowable fanRPM
Max. installed power(metric H.P.)
Fan net weight
512 mm
42
4.3
n x 0.0268 m/s
0.397 m2
I class II class1.000 1.200
I class II classTA-R: 15 202TA-R: 20 25
TA-R: 98kg2TA-R: 200kg
Max. circulating air temperature: 70°CData refer to standerd air at 15°C, 760 mm Hg (γ = 1.22 kg/cu m)Ptot = Pst + Pdin
3.000 4.000 6.000 8.000 10.000 15.000 20.000 30.000 40.000 Q m3/h
0,9 1 1,5 2 2,5 3 4 5 6 7 8 9 10 Q m3/sec.
0,3 0,4 0,5 1 1,5 2 2,5 3 4 5 10 15 20 25 30 40 50 60
2 3 4 5 6 7 8 9 10 15 20 25 30 Vu. m/sec.
800
900
1000
1100
1200
1300150
10090807060
50
40
30
20
15
109876
5
4
3
Hst mm H2O
Giri
al 1
’
Hst
[m
m H
2O]
x 9
,81
= [P
a]
η t = 0,64
H [
mm
H2O
] x
9,8
1 =
[P
a]
600
Hd [mm H2O] x 9,81= [Pa]
η t = 0,68
500
400
2a C
lass
e
1a C
lass
e
η t = 0,69
700
8070
60
50
40
30
20
15
109876
5
4
3
300
200
75
80
0,75
1
Hd
85
POTE
NZA
ASS
ORB
ITA [C
.V.]
X 0
,735
= [K
w]90
1,5
2
3
4
5,5
7,5
10
15
2025
70
65
95
CHARACTERISTIC CURVES
TA 22-22
Revolutions per minuteBrake horsepower - metric H.P.Noise level dBA
Ht = Total pressure
Hst = Statics pressure
Hd =Dynamics pressure
Ht = Hst + Hd
ηt = Total efficiency
Fanwheel diameter
Number of blades
PD2 (kgxm2)
Peripheral velocity
Blade surface
Max. allowable fanRPM
Max. installed power(metric H.P.)
Fan net weight
575 mm
48
5.8
n x 0.03 m/s
0.480 m2
I class II class900 1.100
I class II classTA-R: 15 202TA-R: 20 30
TA-R: 104kg2TA-R: 225kg
Max. circulating air temperature: 70°CData refer to standerd air at 15°C, 760 mm Hg (γ = 1.22 kg/cu m)Ptot = Pst + Pdin
4.000 6.000 8.000 10.000 15.000 20.000 30.000 40.000 60.000 Q m3/h
1,5 2 2,5 3 4 5 6 7 8 9 10 15 Q m3/sec.
0,4 0,5 1 1,5 2 3 4 5 10 15 20 30 40 50
3 4 5 6 7 8 9 10 15 20 25 30 Vu. m/sec.
800
900
1000
11001200
150
10090807060
50
40
30
20
15
109876
5
4
3
Hst mm H2O
Giri
al 1
’
Hst
[m
m H
2O]
x 9
,81
= [P
a]
η t = 0,63
H [
mm
H2O
] x
9,8
1 =
[P
a]
600
Hd [mm H2O] x 9,81= [Pa]
η t = 0,68
500
400
2a C
lass
e
1a C
lass
e
η t = 0,68
700
70
60
50
40
30
20
15
109876
5
4
3
300
200 75
80
0,75
1
Hd
85
POTE
NZA
ASS
ORB
ITA [C
.V.]
X 0
,735
= [K
w]90
1,5
2
3
4
5,5
7,5
10
15
2025
7065
95
30
40
CHARACTERISTIC CURVES
TA 25-25
Revolutions per minuteBrake horsepower - metric H.P.Noise level dBA
Ht = Total pressure
Hst = Statics pressure
Hd =Dynamics pressure
Ht = Hst + Hd
ηt = Total efficiency
Fanwheel diameter
Number of blades
PD2 (kgxm2)
Peripheral velocity
Blade surface
Max. allowable fanRPM
Max. installed power(metric H.P.)
Fan net weight
665 mm
54
9.8
n x 0.0347 m/s
0.630 m2
I class II class800 1.000
I class II classTA-R: 15 252TA-R: 25 40
TA-R: 145kg2TA-R: 295kg
Max. circulating air temperature: 70°CData refer to standerd air at 15°C, 760 mm Hg (γ = 1.22 kg/cu m)Ptot = Pst + Pdin
4.000 6.000 8.000 10.000 15.000 20.000 30.000 40.000 50.000 Q m3/h
1,5 2 2,5 3 4 5 6 7 8 9 10 15 Q m3/sec.
0,2 0,3 0,4 0,5 1 1,5 2 3 4 5 10 15 20 25 30 40
2 3 4 5 6 7 8 9 10 15 20 25 Vu. m/sec.
800
900
1000150
10090807060
50
40
30
20
15
109876
5
4
3
Hst mm H2O
Giri
al 1
’
Hst
[m
m H
2O]
x 9
,81
= [P
a] η t = 0,62
H [
mm
H2O
] x
9,8
1 =
[P
a]
600
Hd[mm H2O] x 9,81= [Pa]
η t = 0,67
500
400
2a C
lass
e
1a C
lass
e
η t = 0,69
700 70
60
50
40
30
20
15
10987
6
5
4
3
300
200
80
75
80
1
Hd
85
POTE
NZA
ASS
ORB
ITA [C
.V.]
X 0
,735
= [K
w]
90
2
3
4
5,5
7,5
10
15
20
25
70
65
9530
40
CHARACTERISTIC CURVES
TA 28-28
Revolutions per minuteBrake horsepower - metric H.P.Noise level dBA
Ht = Total pressure
Hst = Statics pressure
Hd =Dynamics pressure
Ht = Hst + Hd
ηt = Total efficiency
Fanwheel diameter
Number of blades
PD2 (kgxm2)
Peripheral velocity
Blade surface
Max. allowable fanRPM
Max. installed power(metric H.P.)
Fan net weight
720 mm
60
13
n x 0.0375 m/s
0.757 m2
I class II class700 800
I class II classTA-R: 20 302TA-R: 30 40
TA-R: 175kg2TA-R: 340kg
Max. circulating air temperature: 70°CData refer to standerd air at 15°C, 760 mm Hg (γ = 1.22 kg/cu m)Ptot = Pst + Pdin
5 6 7 8 9 10 15 20 30 40 50 60
1,5 2 2,5 3 4 5 6 7 8 9 10 15 20 Q m3/sec.
0,3 0,4 0,5 1 1,5 2 3 4 5 6 7 8 9 10 15 20 30 40
2 2,5 3 4 5 6 7 8 9 10 15 20 25 Vu. m/sec.
Q m3/h x 1000
800
550
150
100908070
60
50
40
30
20
15
10987
6
5
Hst mm H2O
Giri
al 1
’
Hst
[m
m H
2O]
x 9
,81
= [P
a]
η t = 0,62
H [
mm
H2O
] x
9,8
1 =
[P
a]
600
Hd[mm H2O] x 9,81= [Pa]
η t = 0,67
500
400
2a C
lass
e
1a C
lass
e
η t = 0,69
700
60
50
40
30
20
15
10987
6
5
300
200
350
250
450
75
80
Hd
85
POTE
NZA
ASS
OR
BITA
[C.V
.] X
0,7
35 =
[Kw
]
90
2
3
4
5,5
7,5
10
15
20
25
70
65
30
CHARACTERISTIC CURVES
TA 30-28
Revolutions per minuteBrake horsepower - metric H.P.Noise level dBA
Ht = Total pressure
Hst = Statics pressure
Hd =Dynamics pressure
Ht = Hst + Hd
ηt = Total efficiency
Fanwheel diameter
Number of blades
PD2 (kgxm2)
Peripheral velocity
Blade surface
Max. allowable fanRPM
Max. installed power(metric H.P.)
Fan net weight
780 mm
66
18
n x 0.0407 m/s
0.813 m2
I class II class600 800
I class II classTA-R: 20 302TA-R: 30 40
TA-R: 215kg2TA-R: 395kg
Max. circulating air temperature: 70°CData refer to standerd air at 15°C, 760 mm Hg (γ = 1.22 kg/cu m)Ptot = Pst + Pdin
150
Hst
[m
m H
2O]
x 9
.81
= [
Pa]
Hst mm H2O
150
200
250
300
350
400
450
500
550
600650
700750
800
651
70
2
3
4
5,5
7,5
10
15
20
2530
4095
90
85
80
75
Giri
al 1
’
1a Cla
sse
2a Cla
sse
3
4
5
6789
10
15
20
30
40
50
60708090
100
3
4
5
678910
15
20
30
40
50
60708090100
Hd
8.000 10.000 15.000 20.000 30.000 40.000 60.000 80.000 100.000 Q m3/h
Q m3/sec.2 2,5 3 4 5 6 7 8 9 10 15 20 25 30
30253 4 5 6 7 8 9 10 15 20
0,4 0,5 1 1,5 2 3 4 5 6 7 8 9 10 15 20 30 40 50
Vu. m/sec.
H [
mm
H2O
] x
9.8
1 =
[P
a]
Hd [mm H2O] x 9.81 = [Pa]
POTE
NZA
ASS
ORB
ITA
[C.V
.] x
0,7
35 =
[K
w]
t =0,67 t =0,69 t =0,61
CHARACTERISTIC CURVES
AIR HANDLING UNIT - Sections dimensions and Weight
Unit Size
CS - 14CS - 17CS - 21CS - 26CS - 32CS - 40CS - 49CS - 60CS - 73CS - 90CS - 110CS - 135CS - 165CS - 200CS - 250CS - 300CS - 370CS - 450CS - 550CS - 680CS - 830
Width HightB C
720 x 550720 x 610800 x 800800 x 800900 x 850
1000 x 8501120 x 8501280 x 10601280 x 11201400 x 12401520 x 14201600 x 14801700 x 14801960 x 16002240 x 16602400 x 18402600 x 20203340 x 19403550 x 21804020 x 23004380 x 2540
100
100
100
100
100
100
100
100
150
150
150
150
150
150
500
500
500
700
700
700
700
24
27
30
33
40
44
48
58
62
70
78
92
110
150
190
230
270
310
360
420
500
350
350
350
350
350
350
350
350
350
350
350
350
350
350
450
550
650
650
650
650
650
28
31
38
40
50
55
61
70
75
90
105
125
145
160
185
275
350
410
500
630
780
750
750
750
950
950
950
1050
1050
1050
1250
1250
1450
1450
1650
1650
1850
2000
2300
2300
2300
2900
50
54
62
67
80
89
98
110
120
150
180
210
240
270
400
435
525
640
750
900
1080
240
240
240
240
240
240
240
240
250
250
250
250
250
250
250
250
250
270
270
270
270
7
9
10
12
13
15
17
20
22
25
28
32
36
42
49
58
70
82
95
110
130
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
22
29
33
39
43
49
55
65
71
80
89
100
112
135
160
180
220
260
300
345
410
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
23
26
31
37
46
53
61
70
81
88
98
110
132
153
200
215
250
274
332
423
520
450
450
450
450
450
450
450
450
450
450
450
450
450
450
450
450
450
450
450
450
450
28
31
38
44
53
64
75
85
100
110
125
137
165
192
230
265
320
350
425
540
670
550
550
550
550
550
550
550
550
550
550
550
550
550
550
550
550
550
550
550
550
550
34
39
46
54
64
80
90
105
125
140
155
177
200
240
270
320
400
450
560
675
800
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
Length Weight Length Weight Length Weight Length Weight Length Weight Length Weight Length Weight Length Weight Length Weight
L 1 L 2 L 3 L 4 L5 L 6 L 71 : 4 R 5 : 6 R 7 : 8 R
2 k
w =
kg
Freshair intake
with louverand damper
Mixingbox
Mixingand
exhaust boxPanelfilter
Bagfilter
Coil Electricheater
Dropleteliminator
and humidifier
L1 L2 L3 L4 L5 L6 L7 L8 L9
L 8
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
18
20
22
25
28
32
37
44
51
57
62
70
78
95
110
130
152
170
210
260
300
800
800
800
800
800
800
800
800
800
800
800
800
800
800
800
800
800
800
800
800
800
51
58
63
70
80
92
116
120
135
145
157
178
208
235
280
320
380
440
520
610
700
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
1250
110
122
135
150
170
185
225
250
280
295
325
370
425
480
600
750
820
950
1100
1450
1700
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
1650
135
150
162
177
200
220
265
290
315
350
390
435
485
540
700
850
960
1100
1250
1450
1700
800
900
900
900
1000
1100
1100
1100
1250
1250
1400
1400
1600
1750
1900
2050
2150
2200
1850
2050
2150
47
52
56
60
70
80
97
110
122
160
205
237
318
395
440
540
660
800
910
1100
1300
800
900
900
900
1000
1150
1150
1150
1300
1300
1500
1500
1700
1850
2150
2350
2400
2400
2000
2150
2400
47
52
56
60
70
80
97
110
122
160
205
237
318
395
440
540
660
800
910
1100
1300
75
80
85
100
110
130
135
180
180
200
240
250
270
310
320
400
450
510
550
625
760
1050
1050
1050
1050
1050
1150
1150
1150
1150
1200
1200
1200
1300
1300
1300
1500
1500
1600
1600
1600
1600
800
900
900
1100
1100
1200
1200
1200
1400
1500
1600
1800
1900
2000
2000
2200
2600
2400
2600
2700
3000
-
-
-
-
-
170
200
225
250
300
330
365
400
445
485
530
595
680
790
935
1075
700
700
700
700
700
900
900
900
900
900
900
900
900
900
900
1200
1200
1200
1200
1200
1200
35
40
45
48
50
65
70
80
80
95
110
120
120
130
135
180
200
220
230
290
310
Length Weight Length Weight Length Weight Length Weight Length Weight Length Weight Length Weight Length Hight Weight Length Weight
L 9 L 10 150 % 75 % 92 %
L 10 2 L 11 L 12 B1 L 13 L 14
Leng
th a
s re
quire
d
1000
1000
1100
1100
1200
1200
1350
1350
1500
1500
1650
1650
1900
1900
2200
2350
2500
2700
2900
3100
3300
Absolutefilter Multizone
Soundattenuator
Supplyair plenum
Fan
L102 L11 L12 L13 L14L101
B 1
Installation of Air Handling Unit:
Units do not present particular difficulties ofinstallation and we believe that the followinginformation is sufficient.
PositioningClient base/foundations must be even and leveledto avoid tension on the panels and frames whencoupling sections together .
Normally it is not necessary to use vibrationisolators exterior to the unit.However, if a particular problem arises, werecommend client consults an anti-vibrationspecialist . In thisinstance, it is necessary to provide all waterpipe connections with proper flexible joints and touse flexible connections on air inlets and outlets.It is important to ensure that the position for the(AHU) permits easy service and sufficient room forcomponent replacement .
Air duct connectionsIt is important to ensure that any flexible joint canoperate effectively after connecting the unit to theductwork.
Coil water connectionsCoil must be connected with the heating or coolingwater flowing counter to the treated air .The water inlet is to be piped up to the bottomconnection and the water outlet to the topconnection.The other two outlets must be closed as shown infigure.
As for the steam and direct expansion coils, theinstructions on the data plates are to be followed.An air vent should be installed in the pipework toeach water coil .When tightening coil connections, ensure that the coilpipe is held rigid, thus avoiding damage to header .
AIR HANDLING UNITInstallation, Operation & Maintenance Instructions
The transmission of vibrations through the watersystem should be avoided as it causes workhardening of the copper pipe and subsequent failure.Drain pipe work should be trapped/siphoned .
In humidification system with a pump, check:Pump rotation directionWater level in the panWater filters positionPan tightness which could have suffered duringtransportationCheck humidification operation and water tightnessof the whole unit when running.The electric supply to fan motor must be in accordancewith local regulations.
During fan starting, it is necessary to check :That the fan rotates freely in the correct direction
and the locking devices which were fitted asprotection during transportation have beenremoved .
The whole fan section, for any damage which mayhave occurred during transportation and whichcould cause unnecessary vibration or unit failure.Do not keep the inspection door open when fan isin operation, as this will cause motor overload.Measure the power absorbed by the motor whichshould normally be designed for approximately 80%of the motor rating .
Assembly of absolute filters and active carboncellsIt is advisable to assemble the filter cells after the(AHU) has been running for several hours.By doing this, the ducts are clean from dust anddebris accumulated during installation.Only after several hours of operation, should absoluteor active carbon filter cells be installed.
AIRFLOW
Handling for transportation1) Units which are provided with support feet :
Unit handling can be effected by fork lift truck orropes as shown in figure
2) Units which are provided with a profile base inwhich there are holes for hooks to take tubes orlifting ropes are handled as shown in figure .
Maintenance InstructionsNormal Maintenance1 Mixing Box Air Dampers: It is recommended
that the drive levers are cleaned and greasedannually.
2 Air filters: To be checked and replacedperiodically according to the dust content of theair .
3 Metal Filter Cell: To be cleaned with hot waterand cleansing agents, or with a caustic soda bath.It will be necessary to spray the cells with mineraloil to ensure efficient operation .
4 Washable Synthetic Material Cells: These filtercells may be cleaned as follows:- By simple shaking- By vacuum cleaner, in this case it is moreeffective if the suction device is positioned onthe air inlet side.- By water spray, (avoiding strong pressure jets) and spraying from the air inlet side.- By water spray, (avoiding strong pressure jets)and spraying from the air inlet side.
5 Auto Roll and Bag Filters: Follow specificfactory maintenance instructions
6 Absolute Filters: Check cells are correctlyassembled on frame and airtight.The cells are not washable.Follow factory service instructions.
7 Air treatment Coils: It is advisable to purge thepipe of air occasionally. To avoid fouling, it isadvisable to clean each coil with water jets at thebeginning of summer and winter seasons.If this proves insufficient we suggest the use of abrush or a proprietary brand of chemical agent tobe applied as instructed .
8 Humidification Section: With pump and sprayheader we recommend every month :
- To clean the nozzles and check that the sprayforms a regular cone .
- To clean the copper/stainless steel mesh waterfilter with a brush .
- To clean the pan from slimy impurities usingwater jet and brush every six months .
Evaporating package when cleaning, the following instructions apply :
- Stop the pump, shut the check valve and waitfor the air flow to dry the evaporating package.
- To remove slimy deposits wash down thepackage with water.
- Take off and clean the water filter with acommon brush.
- Wash the pan and overflow pipe.
AIR HANDLING UNITInstallation, Operation & Maintenance Instructions
9 Fan section:Warning: Before opening the fan motor assembly
make sure that the main power switch has beenisolated
Check belt drive tension after the first week ofoperation and adjust if necessary as follows :- Loosen the electric motor from the main base.- Move the motor until the belt tension can beseen to give about 2 cm deflection between thetwo pulleys .Excessive tension of the belts causes damageto the bearings.
- Check that the fan and motor shafts are paralleland the pulleys are correctly aligned.
- Fans provided with open bearing housing needto be lubricated periodically.
- Check that all fixing screws are correctly tightafter first week of operations, retighten ifnecessary and to be checked periodically eachmonth .
10 Motor- Ambient temperature, changing with
seasons but not exceeding 40 degreescentigrade.
- Voltage, 220/380 V, 380/660 V- Check if the data on the name-plate
the requirements.- Motor should be earthed properly. There
is an earthing device at the low right partof the terminal box
- There are 6 terminals on the terminalplate marked with : U1, V1, W1, U2, V2,W2 respectively. Connection should bedone according to the diagram on thename-plate .When power phase sequences A, B, C arecorresponding to mounting marks of U1,V1, W1 respectively, looking from the endof the main shaft, the rotating of motor isregarded as clockwise.If changing the phase sequence, therotation of the motor is counter to itsoriginal one. Check motor rotation beforetest-run.
- Abnormal sound or vibration should notoccur during operation. The temperatureof bearings should not exceed 95 degreescentigrade.
11 Various checksCheck for air leaks from panels andinspection doors.Check the condition of the electric cables.
12 Safety provisionsAll the units are provided with the followingsafety devices:
Fan access door with locking handles.Upon request belt guard for fan/motordrive protection.
Internal Static Pressure (Pa)External Static Pressure (Pa)
A.H.U ORDER FORMCUSTOMERMODEL CS
Insulated single skin
R L
PlastifiedPlastified
GalvanizedGalvanized
Sheet ofQU. No.QTY.UNIT No.
INSULATION
Double skin
Uninsulated single skin Thickness (mm)
SUPPLY FANCapacity (mt3/hr)
Air Orientation
Internal Static Pressure (Pa)
External Static Pressure (Pa)
Inspection Door
RETURN FANCapacity (mt3/hr)Inspection Door
Input by : Date Signature
COOLING COIL SECTIONChilled WaterLoad (B.T.U/KW)
Air SideEntering Temp. (DB) (F/C)Ent. Relative Humidity (%)
Air pressure Drop (in. wg./Pa)
Water SideWater Flow (GPM - L/S)Entering W. Temp. (F/C)Refrigerant sideSuction Temp. (F/C)
W. Press. Drop (in. wg./Pa)Leaving W. Temp. (F/C)
Hot Water CoilLoad (B.T.U./K.Cal.) Header sideEntering Air Temp. (DB) (F/C) Leav. Air Temp. (DB) (F/C)Water Flow (GPM - L/S)Entering W. Temp. (F/C) Leaving W. Temp.
SteamLoad (B.T.U./K.Cal.) Header side
Entering Air Temp. (DB) (F/C) Leav. Air Temp. (DB) (F/C)
Electric HeaterCapacity (KW) No. of stepsVoltage (volt) No. of phase
Steam
HUMIDIFICATION SECTIONWater (Lit./hr) Relative Humidity
FILTER SECTIONPre-Filter
efficiency (%)
Bag Filter
Efficiency (%)
Absolute Filter
Efficiency (%)
SOUND ATTENUATORS SECTION
Supply S.A.
Insertion Loss (db) at 250 Hz Max Pressure Drop (Pa)
Max Pressure Drop (Pa)
ADDITIONAL SECTIONS
FINISHExternalInternal
HEATING SECTIONHot Water Electric Heater
Direct Expansion
Header Side
Leaving Temp. (DB) (F/C)Leav. Relative Humidity (%)
Return S.A.Insertion, Loss (db) at 250 Hz
A B C D E F R L
R L
R L
R L