Halton TCM – Conical diffuser

Overview

• Suitable for horisontal supply and exhaust
• Suitable for cooling applications with supply/room air temperature difference as low as -12 °C
• Integrated or suspended ceiling installation
• Circular duct connection with rubber gasket
• Detachable cone module, enabling the cleaning of the diffuser and ductwork

Product models and accessories

• Models integrated in a panel for installation in modular suspended ceilings with dimension options of 450×450, 600×600 or 675×675 mm
• Plenum options with measurement and adjustment functions
• Measurement and adjustment module

Quick selection

Dimensions

Material

Accessories

Product models

Function

Supply air is divided into several jets through the cones.
The divergent sections of the diffuser create negative pressure below the diffuser so room air is induced into the supply air device. Room air and supply air mix.

This internal induction reduces temperature and the air velocity into the space.
The process is the same outside the diffuser between the supply and mixed room air, with external induction further reducing velocity and the temperature difference between supply and room air.
This effect reduces the flow disturbances.

The diffuser can also be used as an exhaust unit.

Installation

Code description
1.  TCM
2.  TRH plenum

The Halton TCM diffuser can be installed flush with a suspended ceiling or fully exposed in the space.
The diffuser is connected either directly to the duct or using a Halton TRH plenum or Halton TRI balancing plenum.
When it is connected directly to ductwork, a safety distance of minimum 3D upstream of the diffuser should be maintained.

Installation with plenum Halton TRI or TRH

When the Halton TRI spigot is installed in the plenum, the H2 dimension can be reduced by 60 mm.

Dimensions of ceiling opening

Adjustment

The airflow rate can be adjusted and measured only when the diffuser is installed.

In order to enable airflow adjustment and measurement of airflow rate, it is recommended that the diffuser be connected to a plenum equipped with the MSM module.
The supply flow rate is determined using measurement and adjustment module MSM.

Detach the conical central core and pass the tubes and control spindle 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 in the plenum and push the conical central core back into place.

The k-factors for installations with different safety distances
(D = duct diameter)

Airflow adjustment damper DD

The airflow rate is adjusted by turning the damper blades behind the diffuser with a screwdriver. The measurement is carried out when the diffuser is installed.

Servicing

Remove the conical central core by gently drawing it out by the central panel (simultaneously, a small pin on the inner side of the external cone is pushed and the assembly is turned clockwise, until it comes free).

Clean the parts by wiping them with a damp cloth.

Push the conical central core back into place so that the springs lock.

Option: with balancing plenum Halton TRI + MSM or TRH + MSM

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

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

Push the conical central core back into place so that the pin locks.

Specification

The diffuser comprises several cones, made of epoxy-painted steel with a white (RAL 9003) standard colour.

The diffuser is suitable for exposed installation or installation flush to the ceiling.

The diffuser is connected to the ductwork using a Halton TRI balancing plenum, which utilises polyester fibre with a washable surface as sound attenuation material.

Option

The diffuser is connected to the ductwork using a Halton TRH plenum, which utilises mineral wool as sound attenuation material.

The plenum comprises an airflow measurement and adjustment module.
The diffuser is suitable for installation in 450×450 mm, 600×600 mm and 675×675 mm false ceilings.
The conical central core is removable.

The supply air pattern is radial in an angle of 360 degrees.

Order code

TCM-D, WS-CO-ZT

D = Connection size [mm]
100, 125, 160, 200, 250, 315, 355, 400, 450

Other options and accessories

WS = Width of suspended ceiling tile
N        Standard
450     450×450
600     600×600
675     675×675

CO = Colour
SW     Signal white (RAL 9003)
X        Special colour (RAL xxxx)

ZT = Tailored product
N         No
Y         Yes (ETO)

Sub products

TRH     Plenum (Ceiling Diffusers)
TRI       Plenum (Diffusers)
DD      Airflow adjustment damper
LD      Airflow adjustment damper

Order code example

TCM-100, WS=N,CO=SW,ZT=N