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Set flow rates

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VAV terminal unit Type TVR/160/Easy

VAV terminal unit type TVR with an Easy controller

 

 

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VAV terminal unit type TVE with an Easy controller

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VAV control unit variant TVE-Q-P1 (powder-coated)

Easy controller for TVE-Q series

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EASY

For easy adjustment


Control components for VAV terminal units, to be mounted on the terminal unit for easy operation

 

  • Simplified ordering and on-site assignment to rooms as selection is based on the nominal size of the duct
  • Simple volume flow rate setting without additional device
  • Indicator light simplifies functional checking
  • With push button for triggering a function test
  • Proven technology of the Compact volume flow controllers
  • Suitable for constant and variable volume flow rates and qvmin-, qvmax-Switching

General information


Application

  • All-in-one control devices for VAV terminal units
  • Dynamic effective pressure transducer, electronic controller and actuator are fitted together in one casing
  • Dynamic differential pressure transducer for clean air in ventilation and air-conditioning systems
  • Standard filtration in comfort air-conditioning systems allows the controller to be used in the supply air without additional dust protection measures
  • Various control options based on setpoint value default setting
  • Volume flow rate control is based on setpoint values received from room temperature controller, central BMS, air quality controller or other devices as an analogue signal.
  • Override control for activating qvmin, qvmax, shut-off or OPEN position can be set with a switch or relay
  • The volume flow rate actual value is available as a linear voltage signal

If air is contaminated with dust, lint, sticky, moist or slightly aggressive particles:

  • Do not use an Easy controller


Construction

  • LMV-D3AL-F TR for LVC
  • TR0VE-024T-05I-DD15 for TVE, TVE-Q
  • LMV-D3A-F TR for TVR
  • LMV-D3A TR for TZ-Silenzio, TA-Silenzio, TVZ, TVA
  • 227V-024T-05-002 for TVR
  • 227V-024T-05-002/RE20 for TZ-Silenzio, TA-Silenzio, TVZ, TVA
  • 227V-024T-15-002 for TVJ, TVT up to and including 1000 × 500
  • SMV-D3A TR for TVT from 1000 x 600




Parts and characteristics

  • Transmitter based on dynamic measuring principle, can only be used with clean air, as a partial volume flow
    is passed through the transducer
  • Mechanical stops for limiting the damper positions (not for TVE and TVE-Q)
  • Actuators with overload protection
  • Transparent protective cap or terminal cover (for TVE and TVE-Q)



Interface

  • Analogue signal 0 – 10 V DC

Control strategy

  • The volume flow controller works independent of the duct pressure
  • Differential pressure fluctuations do not result in permanent volume flow rate changes
  • To prevent the control from becoming unstable, a dead band is allowed within which the damper blade does not move
  • Volume flow parameters can be easily changed by the customer

Operating modes

  • Operating mode variable volume flow rate, qvmin: minimum volume flow rate, qvmax: maximum volume flow rate
  • Operating mode Constant value, qvmin: Constant volume flow rate, qvmax: 100 %

Commissioning

  • Operating values qvmin, qvmax to be set on site with potentiometer on the outside of the housing without additional adjustment tools


TECHNICAL INFORMATION

  • Function
  • SPECIFICATION TEXT
  • ORDER CODE
Principle of operation – LVC, TVR, TZ-Silenzio, TA-Silenzio, TVZ, TVA, TVJ, TVT
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① Effective pressure transducer

② Actuator

③ Volume flow controller

④ Setpoint value signal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Air terminal units control the volume flow in a closed loop, which means: measurement – comparison – adjustment.
The volume flow rate is obtained by measuring a differential pressure. This is done with a differential pressure sensor. The integrated differential pressure transducer converts the differential pressure into a voltage signal. The actual volume flow rate is available as a voltage signal. The factory setting is such that 10 V DC always corresponds to the nominal flow rate (qvNom).
The volume flow setpoint is specified by a higher-level controller (e.g. room temperature controller, air quality controller, building management system) or by switching contacts. Variable volume flow control can be set betweenvmin and qvmax. It is possible to override the room temperature control by forced switching, e.g. for a shut-off
The controller compares the volume flow setpoint with the current actual value and adjusts the internal actuator according to the control deviation.
Volume flow parameter qvmin and qvmaxcan be set on potentiometers.

Category

Easy controller for volume flow with potentiometer setting for qvmin, qvmax

Application

  • Control of a constant or variable volume flow rate setpoint
  • Electronic controller for applying a reference value and capturing an actual value signal
  • The actual value signal relates to the nominal volume flow rate so that commissioning and subsequent adjustment are simplified
  • Stand-alone operation or integration with a central BMS

Area of application

  • Dynamic transducer for clean air in ventilation and air conditioning systems

Actuator

  • Integral; slow running (run time 100–270 s for 90°)

Installation orientation

  • Either direction

Connection

  • Double terminal for supply voltage to connect up to 3 controllers
  • No terminal box required.

Supply voltage

  • 24 V AC/DC

Interface/signalling

  • Analogue signal 0 – 10 V DC

Interface information

  • Volume flow setpoint; actual volume flow rate
  • The actual value signal relates to the nominal volume flow rate so that commissioning and subsequent adjustment are simplified

Special functions

  • Clearly visible external indicator light for signalling the functions: Set, not set, and power failure
  • Activation of Vmin, Vmax, closed, open by external switch contacts/circuitry

Parameter setting

  • Specific parameters for VAV terminal unit are factory-set
  • Operating values qvmin, qvmax to be set on site with potentiometer on the outside of the housing without additional adjustment tools

Factory condition

  • Electronic controller is factory mounted on the control unit
  • Factory-set parameters
  • Functional test with air (see sticker)

Control component Easy (shown together with TVR as an example)
TVR–D/200/D2/Easy
|||||
12567
1 Type
TVR VAV terminal unit

2 Acoustic cladding
No entry: none
D With acoustic cladding

5 Nominal size [mm]
100, 125, 160, 200, 250, 315, 400

6 Accessories
No entry: without accessories
D2 Lip seals on both ends
G2 Matching flanges for both ends

7 Attachments (control component)
Easy Easy controller


Order example: TVR-D/200/D2/Easy

TypeTVR
Acoustic claddingWith acoustic cladding
Nominal size [mm]200
AccessoriesDouble lip seal both ends
Attachments (control component)Easy controller

Downloads

product information

  • Product data sheet control component Easy

    Easy_PD_2023_06_21_DE_en Product Data Sheet 1,4 MB pdf

operation manuals

  • Installation and commissioning instruction type Easy

    EASY_IM_A00000073971_V4_2022_02_GB_en Installation and commissioning instruction 1,4 MB pdf

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