Turbo Ventilators

Ventilation
Turbo Ventilators
High efficiency
Economical
Maintenance Free
Architecturally Pleasing
Typhonic® Roller Bearing system
Optional Booster Fan
Pics to come
Ventilation
Turbo Ventilators
General description
The IVR Gyro series with their rotating heads, powered by cost-free air, boosts
the natural up-flow of hot and contaminated air. Typhonic ball bearing action
enables the slightest motion of air to rotate the Turbo head. Suction and
discharge are maintained with the centrifugal force caused by the freely revolving
head creating a vacuum. Warm air rushes up to fill this vacuum and is expelled
into the outside atmosphere, even in low wind conditions.
No opening in any position of the ventilators will funnel air back into a building.
Engineered construction provides robust trouble-free ventilators that last
for years and we warrant our products accordingly. The Typhonic bearing
system is sized to withstand many times the actual thrust loads carried and are
lubricated for continual service. Careful balance and alignment assures quiet
and vibration-free operation. IVR Gyro Ventilators are efficient, aesthetically and
psychologically appealing due to their effortless spinning motion.
The IVR Gyro TORNADO Ventilator is recommended for cyclonic areas
Uses
Design
IVR Gyro Turbo Ventilators are ideal for the general ventilation of factories,
schools, public buildings, farm buildings and houses.
The IVR Gyro series incorporates a number of superior design features to
give maximum efficiency and continual trouble-free service even in adverse
conditions.
Stainless steel thrust bearing models LTV-400 to 1200
Self-lubricating bearings {models LTV-150 to LTV-350
Double top cap ensures permanent alignment. Unique
inverted cap design.
Corrugated roll formed vanes provide strength, rigidity,
positive air flow and weatherability.
Typhonic Roller bearing system, housing precision
upper & lower bearings.
Excludes dust, grit and foreign matter and retains
unique lubrication in a fully replaceable unit.
Fabricated from high strength Zincalume (standard),
galvanised steel, aluminium, stainless steel or copper.
To prevent loss or damage in high winds LTV-450 to
LTV-1200 have a locked-on rotor mechanism, lock tabs
and band combined with a polyurethane locating collar
LTV-150 to LTV-400 feature locked-on rotor mechanism
and a polyurethane collar.
Standard finish coat is two-pack polyurethane
(Brilliant Silver)
Aluminium Gyro Ventilators with
stainless steel spiders and shaft
assembly are available upon request.
All Colorbond colours can be supplied as an extra in 2
pack polyurethane coating system.
Dia
O/A
O/A
Throat
Dia
Height
LTV-150
152
285
265
LTV-200
203
320
300
LTV-250
254
410
340
LTV-300
305
430
385
LTV-350
355
500
440
LTV-400
406
540
Model
Dia
O/A
O/A
Throat
Dia
Height
LTV-600
610
825
693
LTV-685
686
950
780
LTV-760
762
1010
870
LTV-840
838
1090
920
473
LTV-900
915
1170
970
1067
1330
974
1220
1480
1050
Model
LTV-450
457
610
533
LTV-1050
LTV-500
508
692
593
LTV-1200
Note: All dimensions shown are nominal and in mm. Subject to alteration without notice.
Accessories
Bases: Roof bases are required with IVR Gyro Ventilators and are precision manufactured
in five basic types to suit job specifications and roof pitch.
Fabricated as standard in Zincalume or in galvanised steel, aluminium, stainless steel of
the gauges and dimensions shown on the chart. The units can be supplied in two-pack
polyurethane to match Colorbond colours. NOTE: For ventilators and bases LTV-500 and
over, additional support between purlins is recommended.
Note: LB Series Transition Base enhances performance by 15% over the cylinder type spigot base.
H
50
Base dimensions and gauges
Types 1-4
Note: All Dimensions shown are
Type 5
Material
nominal and in mm Subject to change
Model
H
O
H
Z/al
Alum
LB-150
150
270
100
0.60
0.80
LB-200
150
300
100
0.60
0.80
LB-250
175
370
100
0.60
0.80
1 Roof pitch
LB-300
200
400
100
0.60
0.80
2 Type of roof profile
LB-350
250
470
100
0.60
0.80
3 Base type
LB-400
250
500
100
0.70
0.80
LB-450
300
570
100
0.70
0.80
LB-500
300
620
150
0.75
1.00
LB-600
400
800
150
0.75
1.00
LB-685
400
850
175
0.95
1.20
LB-760
450
910
200
0.95
1.20
LB-840
450
1005
200
0.95
1.20
LB-900
450
1100
250
0.95
1.20
LB-1050
600
1220
NA
0.95
1.20
LB-1200
600
1400
NA
0.95
1.20
without notice
When ordering specify:
Dampers: Disk dampers may be provided in the ventilator throat, if ordered with the
ventilator. Likewise Butterfly dampers (one section of a disk hinged at the centre) are
available in Models LB-500 to LB-1200. Electric operated damper motors available on
request. Unit dampers installed in a separate section of duct are available as an optional
application.
Bird or insect screens are normally not required for the revolving IVR Turbo Ventilators.
Certified tests
Recommended air
change periods
IVR Gyro Ventilators have been tested to AS 2428 Parts 1 and 2, wind and rain at 55m/s
velocity by the CSIRO Laboratories and additional testing at the Twining Laboratories
USA and similar to AS/NZS-4740:2000 at the UTS testing laboratories Ultimo. Ratings
are based on formulas outlined in the American Society of Heating, Refrigeration and Air
Conditioning Engineers guide for natural ventilation. Fire tested to AS/NZS 1668.1.1998
Part 1 Fire and Smoke spill Control.
For natural ventilation requirements of industrial and commercial buildings, it is
recommended the ventilators be spaced at approximately 6 metre intervals to provide
an air change every 10 to 15 minutes. Large buildings may be figured as low as
a 30 minute air change where conditions permit. Faster air change ventilation is
recommended for areas where relief from hot or contaminated air trapped near the
ceiling, is required. (Refer table back of composite brochure).
Inlet air should be provided for cross ventilation. If more frequent air changes are
required it could be advantageous to consider the use of IVR 240V or 415V
Booster Fans.
Ventilation
Turbo Ventilator Damper/Booster
Fan Thermostat Controller
(Optional Booster Fan system)
Top View
Booster Fan: Damper in open position.
For accelerated extraction of contaminated air and night
flush operation.
Night Flush System
This operation is to flush
classrooms, halls etc, with
low level fresh air intakes.
NOTE: Classrooms and/
or each block may be set
for individual times, this will
reduce noise.
Electric Damper
Open summer/closed winter.
Auto/Manual Control
Manual control allows individual
operation of fan and damper.
Auto function allows thermostat
operation of fan and damper.
Thermostat Control
Variable Fan Speed
In auto function the thermostat
controller may be programmed to
operate the damper and fan separately.
eg. open damper at 20 degrees and
start fan at 25 degrees.
Underside view
Allows custom control settings for each
installation eg. classrooms, hall, gyms,
etc. Allows fan speeds to be set for
sensitive db noise level locations.
Main Control Panel.
Remote Control Switch.
Lowline Turbo
Ventilator
Booster Fan:
The Gyro LTV provides 24 hr a day natural ventilation with the option of increasing air flow via the
Lowline Turbo Ventilator Booster Fan to remove harmful gases that require accelerated extraction;
eg Welding fumes, exhaust emissions and night flushing of the stale air in inclosed blocks.
Option
Turbo Ventilator
Damper/Booster Fan
Thermostat
The Gyro LTV control panel incorporates a comprehensive Auto/Manual operating system
that allows extra control of ventilation. With the addition of a Booster Fan and/or an Electric
Damper for optional control is always at hand
Controller
The Damper and Fan are also programmed to operate by a thermostat controller in the auto
function which reacts to temperature changes
Performance curves are based on free inlet and discharge results will differ through Turbo Ventilator head in natural field conditions.
Booster Fan
Data Table
Model
Booster Fan
Nom. Free Air
L/S
240 Volts
KW
Amps
415 Volts
KW
Amps
SPLA
@ 3m
dB
LTV-400/031-4
583
0.15
0.70
-
46
LTV-450/035-4
1000
0.21
0.96
-
51
LTV-600/050-4
2250
0.58
2.50
-
63
LTV-760/063-4
5055
1.9
3.15
69
LTV-840/063-4
5055
1.9
3.15
69
Ventilation
L
LTV-180FR
Fire tested to
AS/NZS-1668-1-1998-4.8
A
Standards by CSIRO
S
Th Gyro LTV Fire Tested Ventilator is specifically designed for large isolated
The
bu
buildings that require natural ventilation under normal conditions and now with the
un
unique advantage of being able to operate in extreme fire conditions, while at the
sa
same time, exhausting smoke from the building.
Th
The Gyro LTV has been fire tested to the requirements of AS/ NZS-1668-1-1998-4.8.
Sm
Smoke Spill, with the result of greater safety for the occupants. It also increases
the fire fighters ability to enter a burning building, secure in the knowledge that the
ventilators are fire tested to operate and withstand temperatures far in excess of
300°C and a time frame of over 2 hours.
Test Standards:
Australian Standard/New Zealand Standard 1668.1-1998.
Description of Specimen:
General. The test specimen consisted of a steel turbo vent positioned on top
of a specimen holder. The furnace exhaust vents were blocked off so that the
furnace vented through the specimen and a fan was positioned on one side to
simulate a cross wind over the vent. The turbo vent was made from 0.8mm thick
zincalume mild steel.
Temperature Conditions:
AS1668.1-1998 Section 8.8.1
(a) In a sprinklered building the fan shall operate for a period of not less than
120 minutes with a smoke-spill air temperature of 200° C.
(b) the fan shall operate for a period of not less than 30 minutes with a smoke-spill
air temperature of 300° C.
After 120 minutes the standard time/temperature curve defined in AS1530.4-1997
was followed for 30 minutes.
After 150 minutes a temperature of 900° C was requested by the client for the
remainder of the test.
Termination of Test: The test was terminated after 180 minutes.
Test Number: FS3616/2564
Furnace Temperature
Figure 1 shows the standard curves of temperature versus time for heating the
furnace chamber and the actual curves of average and maximum temperature
versus time recorded during the heating period.
CSIRO Assessment Conclusion:
Assessment Number FCO-2315.
Following the successful testing of the LTV 760
our range of turbo vents (LTV-400, 450, 500, 600,
685, 760, 840, 900, 1050, 1200.) were assessed in
accordance with AS1668.1 Section 4.8 and would
continue to operate under the following conditions:
a) not less than 120 minutes at 200° C
b) not less than 30 minutes at 300° C
Ventilation
Certified performance ratings
(cubic metres per second)
Stack Wind Temp
Height Speed Diff
m
km/hr
6.4
8.0
3.05
12.8
16.0
6.4
8.0
6.1
12.8
16.0
6.4
8.0
9.14
12.8
16.0
Exhaust Ratings in Cubic Metres Per Second
LTV Models ( Actual diameters in mm see page 2)
C
150
200
250
300
350
400
450
500
600
685
760
840
900
1050
1200
6
0.038
0.068
0.106
0.152
0.208
0.271
0.343
0.423
0.609
0.773
0.952
1.155
1.371
1.862
2.444
11
0.039
0.070
0.110
0.158
0.215
0.281
0.355
0.437
0.630
0.800
0.985
1.195
1.418
1.926
2.528
17
0.042
0.074
0.115
0.166
0.226
0.296
0.374
0.461
0.664
0.843
1.038
1.259
1.495
2.030
2.664
6
0.045
0.081
0.127
0.182
0.248
0.324
0.411
0.505
0.727
0.924
1.137
1.380
1.638
2.224
2.920
11
0.046
0.082
0.128
0.184
0.252
0.329
0.416
0.512
0.738
0.937
1.154
1.400
1.661
2.257
2.962
17
0.049
0.088
0.136
0.193
0.268
0.350
.0443
0.545
0.785
0.997
1.228
1.490
1.768
2.401
3.152
6
0.068
0.121
0.189
0.272
0.371
0.485
0.613
0.755
1.088
1.381
1.701
2.063
2.449
3.325
4.365
11
0.069
0.123
0.192
0.277
0.377
0.493
0.623
0.767
1.105
1.404
1.729
2.097
2.489
3.380
4.436
17
0.070
0.125
0.194
0.279
0.380
0.497
0.629
0.775
1.116
1.417
1.745
2.117
2.513
3.412
4.478
5.388
6
0.084
0.150
0.233
0.336
0.458
0.598
0.757
0.932
1.343
1.705
2.099
2.547
3.023
4.102
11
0.086
0.153
0.239
0.344
0.469
0.614
0.776
0.956
1.377
1.748
2.153
2.611
3.100
4.209
5.525
17
0.088
0.157
0.244
0.352
0.480
0.626
0.792
0.977
1.408
1.787
2.197
2.669
3.169
4.314
5.648
2.527
6
0.039
0.070
0.109
0.158
0.215
0.281
0.355
0.437
0.630
0.800
0.984
1.195
1.418
1.926
11
0.046
0.082
0.127
0.183
0.250
0.327
0.412
0.508
0.732
0.929
1.145
1.389
1.649
2.238
2.938
17
0.047
0.084
0.130
0.188
0.256
0.335
0.423
0.522
0.751
0.954
1.175
1.425
1.691
2.297
3.015
6
0.046
0.082
0.128
0.184
0.252
0.329
0.416
0.512
0.738
0.937
1.154
1.400
1.661
2.257
2.962
11
0.048
0.085
0.133
0.191
0.260
0.340
0.430
0.530
0.763
0.969
1.194
1.448
1.718
2.334
3.063
17
0.050
0.089
0.138
0.199
0.272
0.355
0.449
0.553
0.797
1.012
1.246
1.512
1.795
2.438
3.200
6
0.069
0.123
0.192
0.277
0.377
0.493
0.623
0.767
1.105
1.404
1.729
2.097
2.489
3.380
4.437
11
0.071
0.127
0.198
0.285
0.389
0.509
0.643
0.792
1.141
1.449
1.784
2.165
2.569
3.489
4.579
17
0.077
0.138
0.215
0.310
0.422
0.552
0.699
0.860
1.239
1.573
1.937
2.350
2.790
3.788
4.972
5.525
6
0.086
0.153
0.239
0.344
0.469
0.614
0.776
0.956
1.377
1.748
2.153
2.611
3.100
4.209
11
0.088
0.158
0.245
0.354
0.482
0.631
0.797
0.982
1.414
1.795
2.211
2.682
3.184
4.323
5.673
17
0.092
0.164
0.255
0.367
0.500
0.654
0.827
1.018
1.467
1.863
2.294
2.783
3.304
4.485
5.888
2.664
6
0.042
0.074
0.115
0.166
0.226
0.296
0.374
0.461
0.664
0.843
1.038
1.259
1.495
2.029
11
0.047
0.084
0.130
0.188
0.256
0.335
0.423
0.522
0.751
0.954
1.175
1.425
1.692
2.297
3.015
17
0.052
0.093
0.145
0.210
0.286
0.374
0.473
0.582
0.839
1.065
1.312
1.591
1.889
2.565
3.366
6
0.049
0.088
0.136
0.196
0.268
0.350
0.443
0.545
0.785
0.997
1.228
1.490
1.769
2.401
3.152
11
0.050
0.089
0.138
0.199
0.272
0.355
0.449
0.553
0.797
1.012
1.246
1.512
1.795
2.438
3.200
17
0.058
0.103
0.160
0.230
0.314
0.411
0.520
0.640
0.922
1.171
1.441
1.748
2.076
2.818
3.699
6
0.070
0.125
0.194
0.279
0.380
0.497
0.629
0.775
1.116
1.417
1.745
2.117
2.513
3.412
4.478
11
0.077
0.138
0.215
0.310
0.422
0.552
0.698
0.860
1.239
1.573
1.937
2.350
2.790
3.788
4.972
17
0.080
0.143
0.223
0.321
0.437
0.572
0.723
0.891
1.283
1.630
2.007
2.434
2.890
3.974
5.150
5.605
6
0.088
0.157
0.244
0.352
0.480
0.626
0.792
0.977
1.408
1.773
2.197
2.649
3.169
4.314
11
0.092
0.164
0.255
0.367
0.500
0.654
0.827
1.018
1.467
1.863
2.294
2.783
3.304
4.485
5.888
17
0.093
0.166
0.258
0.371
0.507
0.663
0.838
1.033
1.486
1.888
2.324
2.820
3.347
4.545
5.965
How to specify size and
model number
1. Obtain cubic volume of area to be ventilated (Width x Length x Height).
2. Multiply by air changes required per hour and bring to m3/s by (3600) division.
3. Divide by number of ventilators desired (approximately 6 metre spacings).
4. From performance rating chart determine the model.
Draft specification
Turbo Ventilators
Ventilators shall be IVR Gyro Series, as manufactured by IVR Group of Picton, NSW, of
sizes and capacities (Model LTV-....) as indicated on the drawings or herein specified.
All shall be of materials and gauges as manufacturer s standards and fixed to roof in
position as shown. Ventilators shall be free running on typhonic precision roller bearing
system. Bases shall be Type ...to meet a roof pitch...0 and....roof profile. Standard/
electric operated dampers shall/shall not be fitted.