Airtight plenum with aesthetic design.
Halton TRI/S + MSM
|Attenuation material||Polyester fibre||–|
|Spigot with gasket||Galvanised steel||Gasket rubber compound|
Plate: Galvanised steel
Brackets: Galvanised steel
Plastic parts: Polypropylene (PP)
Spindle: Stainless steel
|Airflow measurement and
|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 fibre|
|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
|TRI/V||Balancing plenum for active supply air diffusers with adjustment and
measurement module MSM and internal sound attenuation material.
Available only for sizes 160-160, 200-200 and 250-250.
Fig.1. Halton TRI/S, E and N
Fig.2. Halton TRI/V
The technical performance is presented for installation with the collar connected outside (Halton TRI-(N)) the balancing plenum.
Halton TRI plenum can be installed using two strips or with M8 drop rods (not supplied).
Halton 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:
In order to change the connection method, the collar is detached by opening the brackets and the collar is remounted into the desired position.
The Halton TRI/V is connected to the ventilation ductwork with a male inlet connection.
After the ductwork pressure test, the diffuser can be installed.
Hang the diffuser to the wire of the Halton TRI/V plenum.
Connect the actuator cable connector plug to the plug from the plenum junction box.
Fix the actuator assembly to the plenum and tighten two screws.
The power supply and control signal cables are connected to junction box according to the diffuser’s wiring instructions.
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:
∆pm Measured pressure [Pa]
k The k factor given as a function of mounting and diameter
qv Airflow rate [l/s]
|TRI||> 8xD||min. 3xD|
Adjust the airflow rate by rotating the control s pindle 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.
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.
The balancing plenum is made of galvanised steel and has a robust and airtight construction.
The airflow rate measurement and adjustment module are available for supply application. The measurement and adjustment module is adjustable without opening the device.
The balancing plenum has a spigot with integral gasket for airtight duct connection and a plug for ductwork pressure testing.
The balancing plenum attenuates duct noise. The sound attenuation material is made of polyester fibre with a washable surface.
S = Model
S Supply (MSM-module,sound attenuation)
E Exhaust (MEM-module,sound attenuation)
N Naked (Model without MSM or MEM-module,sound attenuation)
V Demand based model for active diffusers
(only sizes 160-160, 200-200 and 250-250)
D = Duct connetion size (mm)
100, 125, 160, 200, 315
E = Diffuser connection size (mm)
100, 125, 160, 200, 250, 315, 400
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
ZT = Tailored product
Y Yes (ETO)