TRI - Plenum

Plenum for diffusers


Airtight plenum with aesthetic design.

  • Plenum for connecting ceiling diffuser/exhaust unit to ductwork
  • Ensures proper function of the supply air diffuser
  • Airtight, robust construction with aesthetically pleasing design
  • Flexibility for levelling diffuser elevation
  • Detachable measurement and airflow rate adjustment module
  • Effective sound attenuation
  • Access for ductwork cleaning

 PRODUCT MODELS & ACCESSORIES

  • Plug for pressure test

The balancing plenum shall be made of galvanised steel and shall have a robust and airtight construction.
The airflow rate measurement and adjustment module shall be available for supply application. The measurement and adjustment module shall be adjustable without opening the device.


The balancing plenum shall have a spigot with integral gasket for airtight duct connection and a plug for ductwork pressure testing.
The balancing plenum shall attenuate duct noise. The sound attenuation material shall be made of polyester fibre with a washable surface.

Introduction

Halton TRI

Plenum (Diffusers)

  • Plenum for connecting ceiling diffuser/exhaust unit to ductwork
  • Ensures proper function of the supply air diffuser
  • Airtight, robust construction with aesthetically pleasing design
  • Flexibility for levelling diffuser elevation
  • Detachable measurement and airflow rate adjustment module
  • Effective sound attenuation
  • Access for ductwork cleaning
     

Product Models & Accessories

  • Plug for pressure test

Dimensions and weight

Dimensions and weight


Halton TRI

 

NS L H H1 K ØD ØD1
100/100 308 152 67 282 99 102
100/125 308 152 67 282 99 127
100/160 308 152 67 282 99 162
125/125 458 182 67 432 124 127
125/160 458 182 67 432 124 162
125/200 458 182 67 432 124 202
125/250 458 182 67 432 124 252
160/160 458 222 67 432 159 162
160/200 458 222 67 432 159 202
160/250 458 222 67 432 159 252
200/200 618 272 67 592 199 202
200/250 618 272 67 592 199 252
200/315 618 272 67 592 199 317
200/400 618 272 67 592 199 402
250/250 618 336 67 592 249 252
250/315 618 336 67 592 249 317
250/400 618 336 67 592 249 402
315/315 618 382 67 592 314 317
315/400 618 382 67 592 314 402

 

 

Weight

Halton TRI/S Plenum + MSM

 

NS

Weight (kg)
100/125 2.19
100/160 2.30
125/125 4.04
125/160 4.05
125/250 4.19
160/160 4.40
160/200 4.60
160/250 4.55
200/200 9.39
200/250 9.62
200/400 9.67
250/250 10.76
250/315 10.90
250/400 11.09


Material

Material


Halton TRI 

 Part  Material  Note
 Casing  Galvanised steel  
 Collar  Galvanised steel  
 Attenuation material  Polyester fibre  
 Spigot with gasket  Galvanised steel  Gasket rubber compound
 Measurement and
 adjustment module
 MSM/MEM
 Bod: Aluminium
 Plate: Galvanised steel
 Brackets: Galvanised steel
 Plastic parts: Polypropylene (PP)
 Spindle: Stainless steel
 
 Pressure test plug  Galvanised steel  

Accessories

Accessories


Halton TRI

 Accessory Code  Description
 Airflow measurement and
 adjustment unit
MSM  Adjustment and measurement
 module for supply airflow rate
 Airflow adjustment unit MEM  Adjustment module for
 exhaust airflow rate
 Sound attenuation IN  Internal sound attenuation material of polyester fiber


Product Models

Product models


Halton TRI

 Model  Description
 TRI/S  Balancing plenum for supply air with adjustment and
 measurement module MSM and internal sound attenuation material
 TRI/E  Balancing plenum for exhaust air with adjustment module MEM
 and internal sound attenuation material
 TRI/N  Balancing plenum for supply or exhaust air  without adjustment and
 measurement module and internal sound attenuation material


 

Function


FUNCTION

 


 

  • TRI balancing plenum equalises the airflow by reducing the flow velocity.
     
  • Air is spread evenly into the diffuser ensuring proper function.
     
  • A range of diffusers can be connected to the distribution ductwork using TRI-plenum, which improves their functional characteristics considerably.
     
  • The balancing plenum also attenuates duct noise.
     
  • TRI plenum can also be used as an exhaust unit.
     

The technical performance is presented for installation with the collar connected outside (TRI-(N)) the balancing plenum.
 

Installation

 

INSTALLATION

 




TRI-plenum can be installed using two strips or with M8 drop rods (not supplied).

TRI is connected to the distribution ductwork with a spigot equipped with an integral gasket.

Due to the modular collar system, the diffuser can be connected to the plenum in three different ways:

  • The collar connected to the outside of the plenum box
  • The collar mounted internally
  • Directly to the plenum without collar (possible only in limited cases).


In order to change the connection method, the collar is detached by opening the brackets and the collar is remounted into the desired position.

When the pressure test is performed, the pressure test plug (1) is screwed on using the brackets (2).

Adjustment

Adjustment


Halton TRI 



The supply flow rate is determined by using the measurement and adjustment module MSM.
The tubes and control spindle are passed through the diffuser. Measure the differential pressure with a manometer. The flow rate is calculated using the formula below.


Adjust the airflow rate by rotating the control spindle until the desired setting is achieved.
Lock the damper position with a screw.
Replace the tubes and spindle into the plenum.

When Halton TRI is used for exhaust air, it is not possible to measure airflow rate with adjustment module MEM.
 

Servicing


SERVICING


Open or detach the diffuser. Detach the measurement and adjustment module by pulling gently from the casing (not from the control spindle or measurement tubes). Wipe the parts with a damp cloth, instead of immersing in water.
The measurement and adjustment module is remounted by pushing the body until it meets the stopper.
The sound attenuation material within the plenum can also be removed (the material is washable), to enable cleaning of the inner side of the plenum. The material is detached by releasing the retaining brackets, which are replaced after washing.
Close or replace the diffuser after cleaning.

Specification


SUGGESTED SPECIFICATIONS


The balancing plenum shall be made of galvanised steel and shall have a robust and airtight construction.
The airflow rate measurement and adjustment module shall be available for supply application. The measurement and adjustment module shall be adjustable without opening the device.
The balancing plenum shall have a spigot with integral gasket for airtight duct connection and a plug for ductwork pressure testing.
The balancing plenum shall attenuate duct noise. The sound attenuation material shall be made of polyester fibre with a washable surface.

Product Code

Product code


TRI/S-D-E

S = Model
       S     Supply (MSM-module,sound attenuation)
       E     Exhaust (MEM-module,sound attenuation)
       N     Naked  (Model without MSM or MEM-module,sound attenuation)

D = Diameter of duct connetion
       100, 125, 160, 200, 315

E = Diameter of diffuser connection
       100, 125, 160, 200, 250, 315, 400


Other options  and accessories
 

AC = Accessories
         MSM     Measurement and adjustment module, supply
         MEM     Adjustment module, exhaust
         MS1      MSM with adjusting spin.L=1500
         ME1      MEM with adjusting spin.L=1500
         IN         Sound attenuation material


Code example

         TRI/S-100-100

  

Downloads & Media

Halton TRI - se
Type
Datasheet
Language
sueco (Suecia)
Size
1.8 MB
Halton TRI - fi
Type
Datasheet
Language
finés (Finlandia)
Size
1.8 MB
Halton TRI - ru
Type
Datasheet
Language
ruso (Rusia)
Size
1.9 MB
Halton TRI - fr
Type
Datasheet
Language
francés (Francia)
Size
2.0 MB
Halton TRI - nl
Type
Datasheet
Language
neerlandés (Países Bajos)
Size
1.8 MB
Halton TRI - gb
Type
Datasheet
Language
inglés (Reino Unido)
Size
1.8 MB