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VARYCONTROL


Air terminal units for supply or extract air for a variety of applications

TROX VARYCONTROL type air terminal units for supply and extract air systems, can be used for almost any control, regulation and shut-off tasks in room air conditioning systems. The selection of the type of units is based on the acoustical requirements and the control functions.

Type TVZ · TVA

TVZ
TROX VARYCONTROL VAV terminal units Type TVZ and TVA are box-style flow rate controllers for variable supply and extract air systems. They can be used for almost any control, regulation and shut-off tasks in room air conditioning systems, but are most ideal for systems with more stringent acoustic requirements.
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Type TVZ · TVA

TVZ
  • Air terminal unit
  • Airtight shut-off
  • Flow rate control or duct or room pressure control
  • Electronic or pneumatic control components
  • Hygienically tested and certified according to VDI 6022


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circular, rectangular

15 – 1,680 l/s
54 – 6,048 m³/h
32 – 3,560 cfm
Δp: 20 – 1,500 Pa

Ø 125 – 400 mm

Casing air leakage flow rate complies with DIN EN 1751, class A
Control damper closed blade leakage complies with DIN EN 1751, class 4 (nominal size 125, class 3)

Type TVM

TVM
  • Dual duct air terminal unit
  • Airtight shut-off
  • Flow rate control
  • Electronic or pneumatic control components
  • Hygienically tested and certified according to VDI 6022


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circular, rectangular

45 – 1,680 l/s
162 – 6,048 m³/h
95 – 3,560 cfm
Δp: 150 – 1,500 Pa

Ø 125 – 400 mm

Casing air leakage flow rate complies with DIN EN 1751, class A
Control damper closed blade leakage complies with DIN EN 1751, class 4 (nominal size 125, class 3)

Type SFTB

SFTB
TROX Series Fan VAV Boxes save energy by utilising the warm air in the building already generated by other sources and mixing it with primary air before distributing a constant volume air supply direct to the occupied zone. This reduces energy consumption, so providing long term operational savings. Available in a range of sizes from 100 l/s to 875 l/s.

TROX Series Fan VAV boxes are suitable for pneumatic or electronic control. Volume flow tolerance is dependent on the type of control system but is typically ±5% to ±10% of set volume.

The units are designed for use in VAV systems and in conjunction with DDC controllers permit communications between the boxes and a centralised control area.

TROX Series Fan VAV Terminal Boxes have been designed and developed to achieve lower room noise levels.

Discharge and case radiated sound pressure levels of NR 35 can be achieved in the occupied zone.

Pressure independent control of the primary VAV damper is accomplished by use of a Multi-point flowgrid which gives accurate control of air flow even with a 90° bend on the inlet spigot.








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Type CVFB

CVFB
TROX Series Fan VAV Boxes save energy by utilising the warm air in the building already generated by other sources and mixing it with primary air before distributing a constant volume air supply direct to the occupied zone. This reduces energy consumption, so providing long term operational savings. TROX Series Fan VAV boxes are suitable for pneumatic or electronic control. Volume flow tolerance is dependent on the type of control system but is typically ±5% to ±10% of set volume.

The units are designed for use in VAV systems and in conjunction with DDC controllers permit communications between the boxes and a centralised control area.











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Type TVS

TROX Varycontrol VAV units Type TVS are volume flowrate controllers for supply air on variable volume systems.

They consist of a casing with circular inlet spigot and rectangular outlet connection, integral attenuator for the reduction of regenerated noise, damper blade and averaging differential pressure grid for monitoring the volume flowrate. The damper blade with plastic seal is air tight to DIN 1946 in the closed position.
Because the casing can be supplied in alternative lengths the unit can be selected to meet the specification requirements.

The attenuator length is short in construction and therefore the units are especially suitable for systems with less stringent acoustic requirements and limited space. The TVS unit can be supplied with two or four row reheat coils, if required.
The unit also incorporates the control components, (velocity controller, transducer. Actuator) which are factory fitted, wired and tubed. Each VAV unit is aerodynamically tested at the factory and set to the required volume flowrates.

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Type TVR

TVR
  • Circular vav controller
  • Airtight shut-off
  • Flow rate control or duct or room pressure control
  • Electronic or pneumatic control components


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circular

10 – 1,680 l/s
54 – 6,048 m³/h
21 – 3,560 cfm
Δp: 20 – 1,500 Pa

Ø 100 – 400 mm

Casing air leakage flow rate complies with DIN EN 1751, class A
Control damper closed blade leakage complies with DIN EN 1751, class 4 (nominal size 100 and 125, class 3)

Type TVJ · TVT

TVT
  • Rectangular vav controller
  • Airtight shut-off
  • Flow rate control or duct or room pressure control
  • Electronic or pneumatic control components


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square, rectangular

45 – 10,100 l/s
162 – 36,360 m³/h
95 – 21,401 cfm
Δp: 20 – 1,000 Pa

W: 200 – 1,000 mm
H: 100 – 1,000 mm

Casing air leakage flow rate complies with DIN EN 1751, class A
Control damper closed blade leakage complies with DIN EN 1751,
TVT: class 4 (B < 600, class 3)
TVJ: class 1 (H = 100, class 0)

Type TVRK

TVRK
  • Circular plastic vav controller
  • Airtight shut-off
  • Flow rate control or duct or room pressure control
  • Electronic or pneumatic control components


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circular

30 – 1,025 l/s
108 – 3,690 m³/h
64 – 2,172 cfm
Δp: 20 – 1,500 Pa

Ø 125 – 315 mm

Casing air leakage flow rate complies with DIN EN 1751, class A
Control damper closed blade leakage complies with DIN EN 1751, class 4 (nominal size 125, class 3)

Type TVR-Easy

TVR-Easy 160
  • Easy - the innovative solution
  • Circular vav-controller
  • Airtight shut-off
  • Flow rate control


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circular

10 – 1,675 l/s
36 – 6,030 m³/h
23 – 3,549 cfm
Δp: 20 – 1,000 Pa

Ø 100 – 400 mm

Casing air leakage flow rate complies with DIN EN 1751, class A
Control damper closed blade leakage complies with DIN EN 1751, class 4 (nominal size 100 and 125, class 3)

Type TVJ-Easy ·
TVT-Easy

TVJ EASY
  • Easy - the innovative solution
  • Rectangular vav-controller
  • Airtight shut-off (Not for TVJ)
  • Flow rate control


more details

square, rectangular

35 – 10,455 l/s
126 – 37,638 m³/h
74 – 22,153 cfm
Δp: 20 – 1,000 Pa

W: 200 – 1,000 mm
H: 100 – 1,000 mm

Casing air leakage flow rate complies with DIN EN 1751, class A
Control damper closed blade leakage complies with DIN EN 1751,
TVT-Easy: class 4 (B < 600, class 3)
TVJ-Easy: class 1 (H = 100, class 0)

News

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Success for TROX Academy

The one day training course which has seen over 600 engineers attend...
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Installation Examples

Clifford Chance

Clifford Chance, Canary Wharf

TROX supplied in excess of 2400 fan boxes, plus associated grilles and diffusers, in a contract value worth more then £1m.
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Contact

Thetford Main Offices Small

TROX UK Ltd

Caxton Way, Thetford
Norfolk IP24 3SQ
Tel: +44 (0)1842 754545
Contact and locations