TROX TLH-100 TLH Supply Diffuser Owner’s Manual
- September 26, 2024
- TROX
Table of Contents
TROX TLH-100 TLH Supply Diffuser
Features
- Excellent induction
- Versatile positioning
- Suitable as a ceiling, wall and riser diffuser
- Installed directly in ductwork or groove
- no tools required
APPLICATION
TLH is a basic supply diffuser for wall, ceiling or riser installation.
DESIGN
TLH features a perforated front and a connection collar fitted with a wide
rubber gasket for installation directly in duct or groove without additional
fastening devices.
MATERIALS AND SURFACE COATING
TLH is made of steel, and comes in a RAL 9003 – gloss 30 finish with EPDM
rubber gasket fitted as standard.
QUICK SELECTION
| TLH | [m3/h] |
|---|---|
| Dim. | 25 dB(A) |
| 100 | 58 |
| 125 | 108 |
| 160 | 194 |
Table 1: The table shows the air volume at 3 sound levels.
The sound level is Lw(A).
Example:
TLH-125 / 0
Explanation:
TLH supply diffuser dim. Ø125.
DIMENSIONS AND WEIGHT, TLH
| Dim. | D | DA | B | Weight [kg] |
|---|---|---|---|---|
| 100 | 99 | 171 | 72 | 0,6 |
| 125 | 124 | 211 | 74 | 0,6 |
| 160 | 159 | 211 | 74 | 0,8 |
Table 2
ACOUSTIC DATA
The diagrams show the total A-weighted sound power level for the valve, LWA.
The correction factors in the table are used to compute the emitted frequency-
distributed sound power level, LW = LWA + KO. The sound pressure level in a
room with absortion corresponding to 10m² Sabine will be 4 dB lower than the
emitted sound power level.
CALCULATION DIAGRAM
THROW LENGTH
Example:
A location has 35 l/s of inlet air (126m³/h) injected. A TLH 125 is selected.
From the diagram, we find that LWA = 30dB(A) at 20 Pa total pressure loss. The
room attenuation is set to 4dB.
We wish to determine:
- a) Emitted sound power level from the valve at 250 Hz.
- b) A-weighted sound pressure level in the room.
- a) Table 1 shows that the correction factor for 250 Hz is -4 dB. LW at 250 Hz then becomes: LWA + KO = 30 + (-4) = 26 dB
- b) With 4 dB room attenuation, the sound pressure level in the room becomes: 30 – 4 = 26 dB(A)
Static sound attenuation incl. end reflection for TLH
| TLH | Attenuation[dB] |
|---|---|
| Dim. | 63 |
| 100 | 27 |
| 125 | 22 |
| 160 | 19 |
KO for calculation of frequency-distributed sound power levels
TLH KO [dB]
Dim. 63 125 250 500 1k 2k 4k 8k
- 100 7 -8 -7 -6 -4 -7 -12 -19
- 125 5 -6 -5 -4 -4 -8 -12 -17
- 160 6 -7 -4 -4 -4 -7 -13 -17
FLOW PATTERN
Typical flow pattern for TLH
Fig. 2 : TLH 100 has a flow pattern which provides a limited throw length. It is thus suitable for risers where displacement ventilation is used and for properties with balanced ventilation systems.
INSTALLATION
TLH is installed directly in to duct as shown in fig. 3 or in groove with an equivalent inside diameter, and is secured by using a press-and-twist method. The diffuser is removed by reversing the action, i.e. twist and pull.
ADJUSTMENTS
For adjustments, the air volume can be measured with the nipple in the centre
hole on the front, see separate data sheet for adjustments at our Web site:
www.trox.no
MAINTENANCE
The valve should be cleaned by using a damp cloth. ENVIRONMENT Enquiries
regarding product declaration can be directed to our sales team, or
information can be found at our website: www.trox.no
The company reserves the right to make amendments without prior notice.
Head Office:
TROX Auranor AS, Auranorvegen 6, NO-2770 Jaren
Telephone: +47 61 31 35 00
www.trox.no