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Halton TSA – Swirl diffuser

Ideal for high spaces.

  • Specially designed for large and high spaces
  • Supply air pattern can be adjusted either manually or controlled by actuator

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Overview

  • Horisontal radial or vertical compact swirl jet air supply
  • Suitable for heating and cooling applications
  • Specially designed for large and high spaces
  • Supply air pattern can be adjusted either manually or controlled by actuator
  • High induction swirl jet ensures efficient mixing and fast reduction of air velocity
  • Installation using plenum or directly to ductwork

Accessories

  • Plenum options with measurement and adjustment functions
  • Actuator (with 24 VAC power supply and proportional 0…10 VDC control signal or alternatively self-actuating wax-bulb) for the direction of airflow pattern

Quick selection

Values with adjustment module (MSM) fully open.


Fig. 1. Quick selection for diffuser with radial jet, unit l/s

 


Fig. 2. Quick selection for diffuser with radial jet, unit m3/h

 


Fig. 3. Quick selection for diffuser and plenum with radial jet, unit l/s

 


Fig. 4. Quick selection for diffuser and plenum with radial jet, unit m3/h

Dimensions and weight

Halton TSA, manually operated (MA=NA)

NS
[mm]
ØD
[mm]
ØW
[mm]
H
[mm]
Weight
[kg]
250 249 382 221 3.7
315 314 475 233 4.8
400 399 593 246 7.3
500 499 735 264 9.6
630 629 917 286 11.6

Halton TSA, with electrical actuator (MO=M2)

NS
[mm]
ØD
[mm]
ØW
[mm]
H
[mm]
H3
[mm]
Weight
[kg]
250 249 382 221 430 4.2
315 314 475 233 459 5.3
400 399 593 246 486 7.8
500 499 735 264 499 10.1
630 629 917 286 524 12.1

Halton TSA, with wax-bulb actuator (MO=M3)

NS
[mm]
ØD
[mm]
ØW
[mm]
H
[mm]
H2
[mm]
Weight
[kg]
250 249 382 221 273 4.1
315 314 475 233 302 5.2
400 399 593 246 329 7.7
500 499 735 264 342 10.0
630 629 917 286 367 12.0

 

Halton TSA with Halton Pop PDI plenum


Fig. 5. Halton TSA with Halton Pop PDI plenum, externally positioned connection spigot

 


Fig. 6. Halton TSA with Halton Pop PDI plenum, internally positioned connection spigot

TSA W
[mm]
PDI ØD
[mm]
ØD1
[mm]
L
[mm]
W1
[mm]
H
[mm]
H1
[mm]
L1
[mm]
Weight
[kg]
250 382 200-250 199 252 458 358 239 211 280 8.6
382 250-250 249 252 520 480 359 211 280 11.9
315 475 250-315 249 317 520 480 359 223 280 12.8
475 315-315 314 317 520 480 359 223 280 13.0
400 593 315-400 314 402 520 480 359 236 280 15.3

Material

Part Description Note
Casing Steel
Deflector ring or cylinder Steel
Front vane panel Steel
Knob Plastic Colour options: white or black
Finishing Painted,
white (RAL 9003)
Special colours available

Product models

Halton TSA with electric actuator

  • Siemens GDB161.2E/HA actuator with 24 VAC power supply and proportional 0…10 VDC control signal

Halton TSA with wax-bulb actuator

  • Halton TSA can be equipped with a wax-bulb actuator, which work without any power supply. The cylinder position changes according to the temperature of supply air.
  • The temperature range of the wax-bulb actuator is about 20 °C to 27 °C.
  • The time taken to change from radial to compact jet (or the other way around) is 10 – 20 minutes.
  • When warm air is supplied the piston of the wax bulb actuator keeps moving until the TSA supply air pattern is vertical. When cold air is supplied, the Halton TSA supply air pattern is changed back to horizontal by means of a spring.

Operating principle


                     Compact jet                                       Radial Jet

The Halton TSA is a high induction swirl diffuser with an adjustable flow pattern. The horizontal radial swirl jet is used mainly in cooling applications that use cool supply air or for ventilation with isothermal supply air.

The vertical compact swirl jet with warm supply air is used in heating applications.

Adjustment of the supply air pattern is effected by moving the internal adjustment element (cylinder).

It is also possible to change from cooling mode to heating mode by adjusting the flow pattern using an electric or wax bulb actuator.

The recommended maximum temperature differences between room and supply air temperatures are +15 °C for heating and -15 °C for cooling applications.

Installation


Fig. 7. Halton TSA diffuser connected to a Halton Pop PDI plenum

The diffuser is connected usually to balancing plenum Halton Pop PDI. Alternatively, it can be connected direct to the duct by riveting or screwing. In that case, minimum safety distance to the next T-branch or curve is three times the duct diameter (3xD).

The front vane panel can be reattached

  • Remove the screws through the front vane panel (sizes 250 and 315) or between the cylinder and casing (sizes 400, 500 and 630), turn and hold the front vane panel to remove.

Take care during installation to ensure that the cylinder can move freely and that the actuator has adequate installation space. There should be at least 50 mm clearance space above the top of the device when the cylinder is in the lowest position. The connection and fixing rivets or screws may not be located more than 50 mm below the upper edge of the diffuser.

Wiring and DIL switches (MO=M2)

DIL switches:
1.  Automatic adaptation of limited movement length to 0-10 VDC control signal
2.  Direction of shaft movement based on 0-10 VDC control signal
3.  Feedback signal

Commissioning


Fig. 8. Adjustment of airflow of diffuser and plenum combination

Airflow control

The diffuser itself has no airflow adjustment. To adjust and measure the supply airflow rate, the diffuser shall be combined with Halton Pop PDI balancing plenum with measurement and adjustment module MSM. In case of exhaust air, use of adjustment module MEM is recommended. It is not possible to measure exhaust airflow rate with adjustment module MEM.

Open the front plate and pass the tubes and control spindle through the front panel (Fig. 8.). Replace the front panel. Measure the differential pressure with a manometer. The flow rate is calculated using the formula below:

where

  • qv           Airflow rate [l/s] or [m3/h]
  • ∆pm      Measured pressure [Pa]
  • k            The k factor (see the table below)

Adjust the airflow rate by rotating the control spindle until the desired airflow rate (pressure difference) is achieved.

Set the tubes and spindle back into the plenum. Damper position can be locked with a knurled head screw of the adjuster.

Duct connection (PDI) k factor of MSM adjuster, opening >0 [l/s]
> 8D Min. 3D
100 5.7 7.5
125 9.6 12.6
160 16.4 21.9
200 26.3 31.0
250 47.1 51.5
315 78.8

 

Duct connection (PDI) k factor of MSM adjuster, opening >0 [m3/h]
> 8D Min. 3D
100 20.6 27.0
125 34.4 45.4
160 59.0 78.8
200 94.8 111.6
250 169.5 185.4
315 283.6

 

Throw pattern adjustment

Key
1.    Control knob
2.    Casing
3.    Front vane panel
4.    Cylinder

The supply air jet is adjusted by changing the position of the cylinder. When you turn the control knob clockwise the throw pattern is changes from radial to compact.

Maintenance

Remove the front vane panel and clean the diffuser by wiping it with a damp cloth, instead of immersing it in water.

Option with balancing plenum

Remove the measurement and adjustment module by pulling gently the shaft; (not the control spindle or measurement tubes!).
Wipe the parts with a damp cloth, instead of immersing them in water.

Remount the measurement and adjustment module by pushing the shaft until the module meets the stopper.

Specification

The diffuser consists of a frame with fixed internal profiled vane rings and a movable cylinder for throw pattern selection.

The front vane panel, the movable cylinder and the frame are made of powder painted steel, with a white (RAL 9003) as standard colour.

The airflow pattern is adjustable automatically using an electrical or wax-bulb actuator, (in applications where both heating and cooling are required.)

Order code

TSA-D, CO-MO-ZT

Main options
D = Diffuser duct connection size [mm] 250, 315, 400, 500, 630
Other options and accessories
C = Colour
SW Signal white (RAL 9003)
X Special colour (RAL xxxx)
MO = Actuator type
NA Not assigned
M2 24 VAC actuator, 0…10 VDC control signal
M3 Wax-bulb actuator
ZT = Taylored product
N No
Y Yes (ETO)
Sub products and accessories (ordered separately)
Halton Pop PDI Balancing plenum

Order code example

TSA-250, CO=SW, MO=NA, ZT=N

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