5/2/B/3
VARYCONTROL
VAV Dual Duct
Terminal Boxes
for variable volume systems
Type TVM
Trox (U.K.) Ltd
Caxton Way
GB-Thetford
Norfolk IP24 3SQ
Telephone +44 (0)1842 754545
Telefax +44 (0)1842 763051
www.troxuk.co.uk
e-mail: [email protected]
5/2/B/3 - June 2001
Contents · Description
Description
Construction and Dimensions
Control Characteristics
Nomenclature
Aerodynamic Data
2
3
5
6
6
Quick Selection
Air-Regenerated Noise
Case-Radiated Noise
Order Details
7
8
9
10
VAV Dual Duct Terminal Box Type TVM
VAV Dual Duct Terminal Box Type TVMD
Trox VARYCONTROL VAV dual duct units Type TVM are
volume flow control units for systems with constant or
variable volume flow. The box consists of a casing with
circular spigots for cold/warm air and right angle
connection, integral attenuation for the reduction of airregenerated noise, damper blade and differential pressure
grid to measure the volume flow rate. The damper with
elastomer seal has a leakage rate in the closed position
which complies with DIN 1946 Part 4. The units can be
supplied with acoustic cladding to reduce case-radiated
noise. A secondary silencer, type TS, can be supplied to
reduce discharge noise level.
The control components (velocity controller, transducer,
actuator) are factory fitted complete with tubing and wiring.
TROX VAV dual duct units can be supplied with a wide
range of control components which are selected according
to the project specification. Every controller is factory-tested
and set to the required volume flow rates.
2
Further information on application, selection and the
control components available is contained in the Product
Information Leaflet “VARYCONTROL VAV UNITS”.
5/2/B/3 - June 2001
Construction · Dimensions
Design Features
Casing
– Circular spigot on high pressure side suitable for ducts to
DIN 24145 and DIN 24146 with groove for the lip seal
(Lip seal can be fitted in the factory or on site by customer)
– Low pressure side suitable for angle flange or slide-on
flanges
– Holes for support rods provided in edge of casing
– Casing leakage to Class II, VDI 3803
or DIN V 24194, Part 2
– Conforms with Clean Room Class 3, VDI 2083, and Class
100 US Standard 209 b
Volume Flow Control
– Pneumatic or electronic control
– Volume flow control range, depending on controller type
– High accuracy of set flow rate, even in cases of adverse
upstream conditions, due to use of an averaging
differential pressure sensor
– Differential pressure range 150 to 1500 Pa
– Control and shut off by means of individual hot and cold
control dampers
– Control dampers air-tight to DIN 1946, Part 4
– Can be mounted in any orientation (however, where
membrane pressure sensors are used, install in position
shown on label)
– Volume flow factory-set and each unit is air flow tested
– The mechanical componets are maintenance free
– Operating temperature 10 to 50 °C
Mixing Section
– Optimum mixing of hot and cold air streams due to
discharge at 90° and use of deflectors
– Temperature variation in mixed air approx. 10% when
related to temperature difference between hot and cold
air streams
Additional Acoustic Cladding
– To reduce case-radiated noise
– External cover of galvanised sheet steel
– Sound-absorbent lining
– Rubber elements to provide isolation between inner and
outer skins
A
L
50
M
Ø 10
70
ØDa
70
K
ØDa
B
20
W
max. 1902)
TVM
200 for sizes
125 & 160
315 for sizes
200 & 250
H
L1
50
A1
M1
Ø 10
B1
20
W1
70
ØDa
70
50
2351)
approx. 750
200 for sizes
125 & 160
315 for sizes
200 & 250
approx. 120
K1
ØDa
TVMD
max. 1503)
approx. 700
approx. 120
2351)
50
H1
Ensure that the control components are accessible.
The control components are positioned on the right when viewed from the air flow direction (with the folded case-seam uppermost)
3
5/2/B/3 - June 2001
TS Secondary Silencer
– To reduce duct-transmitted, air-regenerated noise on low
pressure side
– Casing in galvanised steel
– Acoustic infill mineral wool
– With angle flange or slide-on duct flanges
Materials
– Casing made of galvanised sheet steel
– Absorption material in silencer and control sections:
mineral wool Class A2, DIN 4102
– Mineral wool in silencer section protected against
erosion by glass fibre scrim suitable for air velocities
of up to 20 m/s
– Mixing damper seal: thermoplastic elastomer
– Sensor tubes in aluminium
– Plastic plain bearings
TS Silencer
Ø10 holes
in top
flange
70
Ø12
F
E
H
R
70
30
Additional Fixing
Holes in Centre
for sizes 250-400
30
G
B
L2 -56
L2
Connection to rectangular ducting
Connection ducting or TS
Slide on flange
M8
RxG
R
E
30
F
G
Ducting or TS
Additional Fixing
Holes in Centre
for sizes 250-400
Table 1: Dimensions in mm
Size
*
Table 2: Weights in kg
Duct connections
ø Da
E
F
R
Casing
G
A
A1
B1
H
H1
K
K1
L
L1
L2
M
M1 Size
W
W1
Size
TVM
TVMD
TS
125 124 186 232 152 198 150 110 300 380 236 316 125 165 1205 1245 806 240 280 125
170 130
125
28
42
10
160 159 186 342 152 308 200 160 410 490 236 316 145 185 1255 1295 806 295 335 160
150 110
160
34
51
15
200 199 244 492 210 458 200 160 560 640 281 361 170 210 1590 1630 956 350 390 200
125
85
200
50
78
22
250 249 235 632 201 598 250 210 700 780 311 391 200 240 1765 1805 956 415 455 250
160 120
250
65
103
37
1) Allow installation clearance
(at least 0.5 x B or B1)
for removal and installation of sensors
* Dimensions of sizes 315 & 400 on request
4
B
2) Only on sizes 125 to 200 with
electronic controls.
On sizes 125 to 200 with
pneumatic controls a
maximum of 290
3) Only on sizes 125 to 200
with electronic controls.
On sizes 125 to 200 with
pneumatic controls a
maximum of 250
5/2/B/3 - June 2001
Control Characteristics
Control Characteristics
The room temperature sensor provides a signal for the
controller of the cold air duct and changes its set point
from 0 to 100% depending on the room temperature
requirement. The actuator adjusts the damper. At the same
time a pressure difference sensor prior to the box discharge
monitors total volume flow and transmits a signal to the
second controller via a pressure transmitter. This controller
is set to a constant warm air flow (e. g. 50 %) and controls
the warm air damper by means of an actuator. This mixes
in the corresponding proportion of warm air. As the need for
cooling increases, the warm air damper closes, until only
cold air is discharged.
pst min
·
cold
V·Vkalt
V·V·ges.
total
pst min
V·V·warm
warm
V· max cold
Differential pressure sensor for V· cold
Pressure transmitter for V· cold
V· total
Controller for V· cold
V· max warm
Actuator for cold duct
Damper for cold duct
V· cold
Room temperature sensor (supplied by others)
total.
Controller for V· warm or V· total
Mixing zone
V· total
Differential pressure sensor for V· total
Pressure transmitter for V·
V· warm
Actuator for hot duct
Damper for hot duct
R
5
5/2/B/3 - June 2001
Nomenclature · Aerodynamic Data
pst
in Pa: Static pressure differential
Pst min in Pa: Minimum pressure differential between
hot and cold air ducts and discharge
·
V
in %: Accuracy of total volume flow V· total when
operating in the mixing zone with duct
pressures between 150 and 1500 Pa
in °C: Room temperature
R
Nomenclature
fm
LW
LW1
L
L1
NC
V·
V· total
in Hz: Octave centre frequency
in dB: Sound power level (re 1 pW) of airregenerated noise in connection duct
in dB: Sound power level (re 1 pW) of
case-generated noise
in dB(A): A-weighted sound power level
(re 20 µPa) of air-regenerated noise,
assuming reflection attenuation and
8 dB/Oct. room attenuation
in dB(A): A-weighted sound power level
(re 20 µPa) of case-radiated noise,
assuming 8 dB/Oct. room attenuation
: Noise criteria of sound pressure
spectrum, assuming 8 dB/Oct.
room attenuation
in l/s or m3/h: Volume flow
in l/s or m3/h: Total volume flow
All noise levels determined in reverberant room. Sound
power levels determined and corrected in accordance with
ISO 5135, December 1997.
For further information on inlet conditions in the cold air
duct, insertion loss and air-regenerated noise in the round
duct, see leaflet VARYCONTROL VAV Controllers (type TVZ).
Table 3: Volume flow, volume flow accuracy and minimum pressure differentials
V· 1)
V· 1)
Size
pst min in Pa
in %
TVM
in l/s
in m /h
cold air
warm air 2)
45
162
8
17
75
270
6
14
3
125
–
10
150
105
378
5
11
20
150
540
5
7
40
75
270
8
17
–
110
396
7
15
160
5
150
145
522
5
12
10
250
900
5
7
20
120
432
8
17
–
205
738
6
14
200
5
150
310
1116
5
10
10
405
1458
5
7
20
185
666
8
17
5
330
1188
6
13
250
10
150
470
1692
5
10
15
615
2214
5
7
25
* additional allowance required
1) Typical values
2) Within the mixing zone
6
TS*
5/2/B/3 - June 2001
Quick Selection
Example
Given:
L results in dB(A)
V· total = 145 to 150 l/s or
= 162 to 540 m3/h
pst = 200 Pa
Permissible sound pressure level in the
room 35 dB(A) with 8 dB/Oct., room
attenuation
Size
Air-regenerated
Noise
Radiated
Noise
Total Noise
Level
125
160
30
25
38
30
39
31
Required:
Size, discharge radiated and combined
noise level 1) as dB(A)-value with
V· total = 150 l/s or 540 m3/h
Result:
Method:
L values from table
Intermediate values determined by means
of interpolation
1) Total noise level is logarithmic addition of air-regenerated
and radiated noise (which can be dependent on room
characteristics)
Size 160 complies with the acoustic specification
without additional acoustic cladding and
without secondary silencer TS
Table 4: Air-Regenerated Noise
V· total
Size
125
160
200
250
in l/s
45
60
100
150
75
100
170
250
120
180
280
405
185
270
470
615
in m3/h
162
216
360
540
270
360
612
900
432
648
1008
1458
666
972
1692
2214
Without TS Secondary Silencer
With TS Secondary Silencer
pst in Pa
200
L in dB(A)
16
21
30
18
21
26
34
17
21
29
38
16
21
33
40
NC
22
17
25
20
31
27
34
500
L in dB(A)
19
22
26
31
25
26
30
36
22
27
32
41
20
26
34
44
NC
20
23
23
26
24
23
25
28
15
20
23
34
17
18
28
38
1000
L in dB(A)
25
27
31
35
28
31
35
39
24
30
35
42
23
29
37
44
NC
29
30
32
32
30
31
33
34
24
27
29
35
23
27
30
38
200
L in dB(A)
17
27
15
18
26
19
28
24
33
NC
21
17
19
17
28
500
L in dB(A)
19
28
19
23
28
17
21
29
15
24
34
NC
22
15
19
20
22
17
27
1000
L in dB(A)
16
17
22
30
19
23
27
31
16
21
24
30
20
20
26
34
NC
19
19
22
22
19
23
24
25
17
18
21
23
17
18
18
28
Table 5: Case-Radiated Noise
V· total
Size
125
160
200
250
indicates
in l/s
in m3/h
45
162
60
216
100
360
150
540
75
270
100
360
170
612
250
900
120
432
180
648
280
1008
405
1458
185
666
270
972
470
1692
615
2214
values less than 15
Without Additional Acoustic Cladding
With Additional Acoustic Cladding
pst in Pa
200
L1 in dB(A)
26
28
31
38
26
28
31
37
27
28
32
38
27
28
33
37
NC
19
20
25
30
18
19
23
30
19
19
22
30
19
21
25
29
500
L1 in dB(A)
33
35
38
41
33
34
37
41
34
36
38
42
36
37
40
42
NC
26
29
33
35
26
27
30
35
27
30
32
37
30
31
33
36
1000
L1 in dB(A)
36
39
44
47
38
40
42
45
39
42
44
47
42
44
46
47
NC
31
33
37
42
32
33
35
39
34
35
37
42
36
38
39
40
200
L1 in dB(A)
16
18
21
27
18
19
23
29
18
21
24
30
18
19
25
30
NC
19
21
22
21
500
L1 in dB(A)
21
24
28
31
23
25
28
32
24
27
29
33
25
27
30
33
NC
18
22
24
15
16
20
25
15
18
20
25
19
20
22
25
1000
L1 in dB(A)
24
27
33
36
27
30
33
36
27
31
34
37
30
33
36
38
NC
18
20
26
31
20
23
25
30
21
23
25
30
22
27
28
30
7
5/2/B/3 - June 2001
Air-Regenerated Noise
Example
Calculation
Given:
fm
63 125 250 500 1000 2000 4000 8000
LW (without TS)
Reflection attenuation
62
14
62
9
51
4
42
1
34
0
31
0
25
0
32
0
Ducting
attentuation 1)
Room attenuation 1)
0
4
0
4
0
4
6
4
8
4
4
4
3
4
3
4
44 49 43 31
– 26 – 16 – 9 – 3
22
0
TVM size 160
V· total = 100 to 250 l/s or 360 to 900 m3/h
pst = 500 Pa
Permissible sound pressure level in the room
35 dB(A) with 4 dB/Oct. room attenuation
Required: Air-regenerated noise in the room at
V· total = 250 l/s or 900 m3/h
A-weighting
Corrected level
18
33
34
28
22
23 18
25
+ 1 + 1 – 1
24
19
24
1) see VDI 2081 for example
Result:
L approx. 38 dB(A) by logarithmic addition.
Specification is not met. TS Attenuator required.
After repeating the calculation with TS the result
L approx. 32 dB(A), specification is met.
Table 6: Air-Regenerated Noise without TS
15
22
32
15
25
34
21
32
43
23
37
47
26
18
31
24
38
15
32
43
15
21
17
25
15
32
24
38
24
27
27
30
28
27
29
32
19
24
27
32
21
22
25
34
54
56
54
62
56
60
62
63
57
56
58
64
51
56
60
65
38
40
47
53
48
54
60
65
47
55
60
64
44
51
58
62
35
39
46
52
41
45
50
54
36
42
47
53
35
42
48
53
8000
26
28
33
38
33
32
36
42
27
31
38
47
25
31
41
51
4000
35
39
44
49
40
42
46
51
36
41
44
53
33
39
44
52
2000
250
38
38
46
52
46
52
58
62
48
52
55
61
43
50
54
59
500
125
42
46
47
51
56
55
59
62
51
54
56
59
48
52
57
62
1000
63
15
17
16
19
17
15
21
19
31
8000
19
24
30
24
35
4000
27
17
31
22
35
31
40
2000
19
33
23
34
16
30
40
21
36
43
1000
8000
20
21
27
37
22
25
32
40
19
25
35
44
16
27
40
47
500
4000
34
37
41
46
34
38
42
50
31
35
41
49
29
33
42
49
250
2000
38
34
44
50
45
49
53
59
44
47
53
59
43
44
52
57
63
1000
42
43
52
55
56
57
59
61
52
56
54
59
49
50
54
62
pst = 1000 Pa
LW in dB
fm in Hz
125
500
250
162
216
360
540
270
360
612
900
432
648
1008
1458
666
972
1692
2214
250
200
in m3/h
45
60
100
150
75
100
170
250
120
180
280
405
185
270
470
615
125
160
in l/s
pst = 500 Pa
LW in dB
fm in Hz
63
125
pst = 200 Pa
LW in dB
fm in Hz
V· total
Size
26
29
36
41
34
37
41
44
29
36
41
49
26
34
44
51
17
20
26
33
19
21
27
35
15
23
35
44
19
26
39
47
15
18
27
16
17
21
31
15
27
39
18
34
43
20
23
25
26
19
22
26
29
18
21
33
26
37
33
34
37
37
34
36
38
39
28
31
33
35
27
31
32
34
Table 7: Air-Regenerated Noise with TS
indicates
8
18
33
23
26
26
36
25
17
19
16
30
15
18
18
19
23
23
15
16
18
47
46
57
64
61
59
60
62
51
57
53
59
50
56
59
64
36
41
46
52
44
49
55
60
40
47
50
57
47
44
50
55
30
33
39
46
34
38
43
47
29
34
37
44
27
31
36
42
8000
17
26
35
18
20
22
30
16
19
21
31
16
19
32
40
4000
250
27
32
37
43
32
35
39
45
28
30
34
43
21
27
34
42
2000
125
29
41
44
50
40
46
52
57
40
44
48
56
34
41
47
55
500
63
49
46
55
59
50
56
59
60
40
45
54
58
46
48
56
67
1000
8000
4000
24 16 19 16 30 22
2000
19
32
23
26
26
37
1000
8000
16
25
35
15
18
29
15
17
30
15
32
40
500
4000
26
32
34
41
29
31
35
43
23
27
31
41
19
22
34
42
250
2000
29
37
42
48
47
42
46
55
36
40
47
54
32
38
45
53
63
1000
162
216
360
540
270
360
612
900
432
648
1008
1458
666
972
1692
2214
pst = 1000 Pa
LW in dB
fm in Hz
125
500
250
250
200
125
160
46
44
46
56
50
46
55
59
39
41
41
59
41
50
56
64
in m3/h
45
60
100
150
75
100
170
250
120
180
280
405
185
270
470
615
values less than 15
pst = 500 Pa
LW in dB
fm in Hz
63
in l/s
125
pst = 200 Pa
LW in dB
fm in Hz
V· total
Size
17
19
27
36
20
23
27
31
17
22
25
32
19
24
33
40
21
33
16
24
16
27
15
27
37
25
18
20
17
30
23
23
26
26
23
27
28
29
21
22
25
26
21
22
5/2/B/3 - June 2001
Case-Radiated Noise
Calculation
Example
Given:
TVM size 250
V· total = 270 to 615 l/s or 972 to 2214 m3/h
pst = 500 Pa
Permissible sound pressure level in the room
45 dB(A) with 6 dB/oct. room attenuation
fm
63 125 250 500 1000 2000 4000 8000
LW1 (without additional
59
3
6
acoustic cladding)
Ceiling noise reduction
Room attenuation 1)
Required: Radiated noise in room at V· total = 615 l/s
or 2214 m3/h
A-weighting
Corrected level
55
3
6
49
3
6
42
3
6
50 46 42 40
– 26 – 16 – 9 – 3
33
0
24
51
3
6
30
33
37
33
39
3
6
39
3
6
35
3
6
30 30
26
+ 1 + 1 – 1
31
31
25
1) see VDI 2081 for example
Result:
L1 approx. 42 dB(A) using logarithmic addition,
specification achieved without additional
acoustic cladding
Table 8: Radiated Noise without Acoustic Lagging
4000
8000
63
125
250
500
1000
2000
4000
8000
63
125
250
500
1000
2000
4000
8000
35
38
39
45
36
37
42
48
36
38
43
48
38
37
44
47
2000
34
38
42
49
43
44
48
54
40
42
47
53
37
41
49
54
pst = 1000 Pa
LW1 in dB
fm in Hz
500
39
36
44
49
44
42
46
52
44
53
53
59
42
44
52
57
pst = 500 Pa
LW1 in dB
fm in Hz
1000
250
162
216
360
540
270
360
612
900
432
648
1008
1458
666
972
1692
2214
250
200
in m3/h
45
60
100
150
75
100
170
250
120
180
280
405
185
270
470
615
125
160
in l/s
63
125
pst = 200 Pa
LW1 in dB
fm in Hz
V· total
Size
31
32
36
43
31
33
36
43
33
33
36
43
33
34
37
42
29
30
34
40
27
28
30
34
28
29
32
35
29
31
33
35
25
26
32
37
25
26
30
32
24
26
29
32
24
27
32
33
16
18
24
34
17
18
21
27
15
17
22
29
18
21
26
28
15
19
28
15
15
17
25
15
16
21
27
18
19
20
23
38
45
45
51
40
47
50
55
51
52
56
60
42
48
57
59
35
40
46
51
43
48
51
55
45
50
50
55
41
46
51
55
35
40
46
48
39
42
46
50
41
45
47
51
41
45
48
51
39
42
46
48
39
40
43
48
41
43
45
50
43
44
46
49
34
36
38
41
35
36
37
40
37
37
38
40
38
38
40
42
34
35
37
40
33
34
35
38
33
34
36
38
34
36
38
39
29
32
33
38
27
29
33
36
28
30
32
35
31
33
36
39
26
29
31
36
23
26
28
31
26
29
32
35
29
31
35
35
44
45
51
54
44
48
52
56
50
55
58
63
46
54
59
62
36
41
48
53
45
49
55
59
45
51
55
58
43
51
55
58
35
40
52
53
43
46
51
54
42
48
51
53
43
49
53
55
39
44
50
54
43
46
48
52
42
48
50
54
46
51
52
53
38
41
46
48
41
42
43
46
42
44
45
47
45
46
47
48
38
39
41
43
39
40
41
42
40
41
41
43
42
42
43
44
37
39
41
43
36
38
40
42
36
39
40
42
39
41
43
45
35
37
39
43
32
33
35
39
39
38
40
42
38
40
42
44
Table 9: Radiated Noise with Acoustic Lagging
indicates
8000
63
125
250
500
1000
2000
4000
8000
63
125
250
500
1000
2000
4000
8000
28
31
32
38
30
31
36
42
29
31
36
41
31
30
37
40
4000
25
29
33
40
37
38
42
48
37
39
44
51
33
37
45
50
2000
162
216
360
540
270
360
612
900
432
648
1008
1458
666
972
1692
2214
pst = 1000 Pa
LW1 in dB
fm in Hz
500
37
34
42
47
42
40
44
50
42
51
51
57
40
42
50
55
21
22
26
33
22
24
27
34
22
22
25
32
23
24
27
32
17
18
22
28
15
17
21
15
18
21
16
18
20
22
19
24
18
20
16
19
19
20
19
15
36
43
43
49
38
45
48
53
49
50
54
58
40
46
55
57
26
31
37
42
37
42
45
49
42
47
47
52
37
42
47
51
28
33
39
41
33
36
40
44
34
38
40
44
34
38
41
44
29
32
36
38
30
31
34
39
30
32
34
39
33
34
36
39
22
24
26
29
22
23
24
27
23
23
24
26
25
25
27
29
21
22
24
27
21
22
23
26
20
21
23
25
21
23
25
26
17
18
23
18
21
15
17
20
17
19
22
25
15
17
22
17
15
18
21
16
18
22
22
42
43
49
52
42
46
50
54
48
53
56
61
44
52
57
60
27
32
39
44
39
43
49
53
42
48
52
55
39
47
51
54
28
33
45
46
37
40
45
48
35
41
44
46
36
42
46
48
29
34
40
44
34
37
39
43
31
37
39
43
36
41
42
43
26
29
34
36
28
29
30
33
28
30
31
33
32
33
34
35
25
26
28
31
26
28
29
30
27
28
28
30
29
29
30
31
22
24
26
28
21
23
25
27
21
23
25
27
25
27
29
31
21
23
25
29
18
19
21
25
25
25
26
28
25
27
29
31
in m3/h
45
60
100
150
75
100
170
250
120
180
280
405
185
270
470
615
values less than 15
pst = 500 Pa
LW1 in dB
fm in Hz
1000
250
250
200
125
160
63
in l/s
125
pst = 200 Pa
LW1 in dB
fm in Hz
V· total
Size
9
5/2/B/3 - June 2001
Order Details
Specification Text
Variable volume flow control, pneumatic controller for connection of
VAV dual duct units for variable volume flow systems, volume flow
rates from 45 to 615 l/s and 162 to 2214 m3/h. Comprising casing
with damper blade airtight to DIN 1946, Part 4 on cold and warm
duct connections. Differential pressure grids to measure the cold
duct and total flow rate. Every controller is factory tested and set to
the required volume flow rates. Baffles are fitted behind the damper
blade for optimum acoustic and aerodynamic performance. Casing
with acoustic and thermal lining and spigots to fit DIN V ducts with
groove for lip seal option. Casing leakage rate to class II, VDI 3803.
DIN V 24194. Unit meets clean room class 3, VDI 2083 and class
100 to US standard 209b. Differential pressure range 150 to 1500
Pa. Volume flow rate range depends on make of control component.
Temperature deviation of mixed air approx., 10% in relation to the
temperature differential between cold and warm air supply.
control signal. Static differential pressure measurement, PI-control,
unit signal 0.2...1.0 bar, normally open/normally closed, direct
acting/reverse acting.
Room temperature and variable control, digital controller with
integral/separate transducer. Communication by databus. Triac
switching for 3 point control of actuator, communication available
through room temperature sensor. Override switching, window
switch; actuator; 24 VAC 3 point.
Materials:
Casing made of galvanised sheet steel, lining of acoustic section and
mixing chamber with mineral wool, faced with fibre glass to protect
against air velocity to approx., 20 m/s, non-combustible to DIN 4102
building materials, class A2. Damper blade with plastic seal TPE,
sensor grid pipes of aluminium, plastic plain bearings.
Optionally available with:
Acoustic lagging to reduce radiated noise made of 40 mm mineral
wool and exterior casing of galvanised sheet steel.
TS Attentuator for the reduction of air-regenerated noise, made
of mineral wool and casing of galvanised sheet steel, connectable to
the box, suitable for connection to slide-on flanges.
Regulation:
Variable volume flow control, electronic controller for connection
of control signal. Actual signal value can be read. Dynamic/static
differential pressure measurement, supply voltage 24 VAC., signal
voltage 2...10 VDC/0...10 VDC.
Order Code
TVM - V2 - LB
Type
Dual duct unit
TVM
With additional
acoustic cladding TVMD
Version
V2
/
125
/
00
/
B27
/
M - 60 - 105
/
00B448
Control diagram
Refer to Trox
Size
125
160
200
250
315
400
Volume flow control
State min and max in l/s
Operating mode
M Master
S Slave
E BMS
F Constant volume
Lining
Perforated plate over mineral wool
LB
Additional sealant to give Class ‘B’ leakage SB
Perforated plate and additional sealant
LS
or no entry
Controllers
Refer to Trox
Additions
00 Standard
D3 Lipseal
Order Details TS
Design changes reserved. All rights reserved © Trox (U.K.) Ltd (2001)
TS - V2 - LB
Type
TS silencer
Version
V2
/
125
Size
125
160
200
250
315
400
Lining
Perforated plate over mineral wool
LB
Additional sealant to give Class ‘B’ leakage SB
Perforated plate and additional sealant
LS
or no entry
10
/
00
/
806
00
Standard
Construction
1)
mm L2 length
L2 available
Size
Reduced1) Standard
125
430
806
160
430
806
200
506
956
250
506
956
315
556
1056
400
680
1306
For Reduced L2 acoustic performance available on request.
Order Example
Order Example TS
Make:
Type:
Make:
Type:
TROX
TVM-V2-LB / 125 / 00 / B27 / F-60-60 / 00B448
TROX
TS-V2-LB/125/00/806