Wildeboer VR1 User manual

User Manual 3.1 (2016-04) 1
Maintenance-free
VR1 volume flow controller
that operates without an auxiliary power supply,
for ventilation and air conditioning systems.
■ Adjustableonsite.
■ Outstandingcontrolaccuracy.
■ SizesDN80toDN315.
■ CasingtightnessclassCaccordingtoDINEN1751.
New option
with duct silencer
The German original version of this document shall prevail.

Subject to change
User Manual 3.1 (2016-04) 2
Maximumpossiblereductionofflownoisewithsoundatte-
nuator lengths
Size Outerdiameter L1 L[mm]
 DN ∅[mm] [mm] 600 900
 80 200 40 -22[dB] -
 100 200 40 -22[dB] -25[dB]
 125 225 40 -22[dB] -25[dB]
 160 260 40 -21[dB] -24[dB]
 200 300 40 -19[dB] -24[dB]
 250 355 40 -18[dB] -22[dB]
 315 415 40 -15[dB] -19[dB]
VR1 volume flow controller
Overview
With the basic version of the VR1 volume flow controller,
the volume flow set point isadjustedmanually.
The controllers operate without an auxiliary power supply!
The volume flow set point is preselected at an adjusting
devicewithscaleandkeptconstantatvariablepressures
toahighdegreeofaccuracy.Thecontrollersareadjusted
at the factory for the entire volume flow range.
• Thevolumeflowsetpointiseasytoadjustonsite!
• Thevolumeflowsetpointcanbepresetatthefactoryif
requested when ordering. Subsequent changes on site
canbemadewithoutproblem. ⇒see page 9
Option
VR1 volume flow controller with actuator driven adjustment
of the volume flow set point . Electrical auxiliary power is
requiredtocarryouttheadjustment.
Dependingonwhichactuatorisselected,twosetpointsor
anyintermediatevaluesarepossible.
Useinsystemswithvariablevolumeflows,withday/night
changeover or fully variable load-dependent operation for
example.
Option
VR1 volume flow controller with acoustic insulation for
thermal insulation and reduction of external sound radiation.
Canbeusedforcontrollerswithmanualandactuator-driven
adjustmentofthe volume flow set point!
Allillustrationsshowvolumeflowcontrollerswithlipseals!
Option
SRC duct silencer for volume flow controller for
reduction of flow noise in the circular ventilation
duct.

Subject to change
User Manual 3.1 (2016-04) 3
 Size Vmin Vmax ∅d L AA
DN [m³/h] [m³/h] [mm] [mm] [m²]
80 50 280 79 329 0.005
100 70 380 99 329 0.008
125 120 600 124 329 0.012
160 150 900 159 329 0.020
200 250 1300 199 329 0.031
250 400 2100 249 406 0.049
315 600 3100 314 456 0.078
VR1 volume flow controller
Description,sizes,technicaldata
1 Ductcasing
2 Controldevice
3 Volumeflowsetpointadjustment
4 Settingpointerwithscale
5 Lipseal   
(optional equipment)
6 Acousticinsulationwithsheetmetal
jacket(optionalequipment)
VR1 volume flow controllers are maintenance-free mechanical controllers
that operate without an auxiliary power supply to maintain volume flows in
ventilation and air conditioning systems constant.
They are installed in supply and exhaust air ventilation ducts and are not
position-sensitive.Thecasingandcontrolmechanismaremadeofgalvanized
sheetsteel.Thecentrallysupporteddamperbladewhichcontrolsthevolume
flowhasastainlesssteelbearingaxisinspecialbushings.Theadjustment
device is equipped with rotary pointer, scale and locking device. The volume
flowsetpointscanbeadjustedmanuallyorbyactuatorwithinthe volume
flow ranges Vmin to Vmax .
The special control mechanism ensures a high degree of control accuracy
withadeviationofonlyapprox.±5%to±10%*).Accordingly,thevolumeflow
throughout the entire pressure range is kept constant.
• Sizes: DN80toDN315
• Totalvolumeflowrange: Vmin=50toVmax=3100m³/h
• Pressurerange: 50to1000Pa⇒ seepages4to7
• Casingtightness: ClassCaccordingtoDINEN1751
• Interiortemperaturerange: -20to+70°C,90°Cforashorttimeonly
•Options
• ActuatorAC230VorAC/DC24V,settingtotwovolumeflowsetpoints.
• ContinuousactuatorAC/DC24V,settingtoanydesiredvolumeflowset
point.
• Externalacousticinsulationwithsheetmetaljacket.
• Lipsealsonbothsides.
•Presetting of volume flow set point at the factory. ⇒ see page 9
• SRCductsilencer,availablein600mmand900mmlengths.
*) Largerdeviationsoccurwithlowervolume
flow rates, especially with small sizes!
Where control deviations are specified as a
percentage, the corresponding volume flow
set point specified is used as reference.
 It is assumed that the incoming flows are
extensively undisrupted.
X=65mm;withactu-
ator-drivenadjustment,
X = 130 mm
L1=40mm;fromDN≥250
L1=60mm
Nomenclature⇒ seepage7
VR1 volume flow controllers
•satisfy the hygiene requirementsaccordingtoVDI6022-1,VDI3803-1,DIN1946-4,DINEN13779,SWKIVA104-01,
SWKI99-3,ÖNORMH6020andÖNORMH6021.
• are resistant to microbes, and therefore do not promote the growth of
micro-organisms (fungi, bacteria). This reduces the risk of infection for
people and also the necessary cleaning an disinfection work!
• are resistant to cleaning agents and disinfectantsandaresuitableforuse
in hospitals and similar facilities!
• come with Environmental Product DeclarationaccordingtoISO14025andEN15804:EPD-WIL-20150036-ICA1-DE.

Sound power level L
WA
[dB(A)]
Static pressure drop ΔpS [Pa]
Volume flow V [m
3
/h]
Flow velocity V
A
[m/s]
Sound power level L
WA
[dB(A)]
Static pressure drop ΔpS [Pa]
Volume flow V [m3/h]
Flow velocity VA[m/s]
Sound power level LWA [dB(A)]
Static pressure drop ΔpS [Pa]
Volume flow V [m3/h]
Flow velocity VA[m/s]
Sound power level L
WA
[dB(A)]
Static pressure drop ΔpS [Pa]
Volume flow V [m
3
/h]
Flow velocity V
A
[m/s]
Subject to change
User Manual 3.1 (2016-04) 4
VR1 volume flow controller
Soundpowerlevelintheconnectingduct(flownoise)
SizeDN80 SizeDN100
SizeDN125 SizeDN160
Nomenclature⇒seepage7

Sound power level L
WA
[dB(A)]
Static pressure drop ΔpS [Pa]
Volume flow V [m
3
/h]
Flow velocity V
A
[m/s]
Sound power level LWA [dB(A)]
Static pressure drop ΔpS [Pa]
Volume flow V [m3/h]
Flow velocity VA[m/s]
Sound power level L
WA
[dB(A)]
Static pressure drop ΔpS [Pa]
Volume flow V [m
3
/h]
Flow velocity V
A
[m/s]
Subject to change
User Manual 3.1 (2016-04)5
VR1 volume flow controller
Soundpowerlevelintheconnectingduct(flownoise)
Example:
Specified: Size DN250
 Volumeflow V = 1500 m³/h
Flow velocity vA = 8.5 m/s
 Staticpressuredrop DpS = 435 Pa
Result: Flownoise
 Soundpowerlevel LWA = 70 dB(A)
SizeDN200 SizeDN250
SizeDN315
Nomenclature⇒seepage7
Dimensioningsoftware⇒downloadatwww.wildeboer.de
•The sound power level inside the connecting duct is calcu-
latedinthenomogramsasanA-weightedoveralllevelLWA.
 TheWildeboerdimensioningsoftwarecalculatescorrespon-
dingoctavesoundpowerlevelsLW-Octforeverysizeand
alloperatingpoints;andalsowhenincorporatingadditional
SRCductsilencersintothedesign.
• WithSRCductsilencers,thesoundpowerlevelsLWA can
bereducedbyupto25dB.
• Important:Thesoundlevelsindicatedinthenomogramsare
sound power levels! The values represent the sound energy
introducedintotheductsystem.Theyshouldbeappliedfor
acoustic calculations, e.g. when adding sound attenuators.
Pleasenote:ThesoundpowerlevelsLporLpA are specified more
thanoncetogenerallyindicateattenuationsofupto16dB.When
comparing numerical values, always bear in mind the difference
betweenthesoundpowerlevelandsoundpressurelevel.Further-
more,thedegreeofattenuationonlybecomesapparentoncethe
specificducts,deflections,branchesandroomshaveactuallybeen
connected.

Sound power level L
WA
[dB(A)]
Static pressure drop ΔpS [Pa]
Volume flow V [m3/h]
Flow velocity VA[m/s]
Volume flow V [m3/h]
Flow velocity V
A
[m/s]
Static pressure drop ΔpS [Pa]
Sound power level LWA [dB(A)]
Sound power level LWA [dB(A)]
Static pressure drop ΔpS [Pa]
Volume flow V [m3/h]
Flow velocity VA[m/s]
Static pressure drop ΔpS [Pa]
Sound power level L
WA
[dB(A)]
Volume flow V [m3/h]
Flow velocity VA [m/s]
Subject to change
User Manual 3.1 (2016-04) 6
VR1 volume flow controller
Soundpowerleveloutsidetheconnectingduct(radiatednoise)
SizeDN80 SizeDN100
SizeDN125 SizeDN160
Nomenclature⇒seepage7

Sound power level L
WA
[dB(A)]
Static pressure drop ΔpS [Pa]
Volume flow V [m
3
/h]
Flow velocity V
A
[m/s]
Sound power level L
WA
[dB(A)]
Flow velocity VA[m/s]
Static pressure drop
Volume flow
Sound power level LWA [dB(A)]
Static pressure drop ΔpS [Pa]
Volume flow V [m3/h]
Flow velocity VA[m/s]
Subject to change
User Manual 3.1 (2016-04)7
VR1 volume flow controller
Soundpowerleveloutsidetheconnectingduct(radiatednoise),nomenclature
SizeDN200 SizeDN250
SizeDN315
Nomenclature
V [m³/h] Volumeflow
AA [m²] Inflowcross-section
vA [m/s] FlowvelocityinAA
DpS [Pa] Staticpressuredrop
LWA [dB(A)] A-weightedsoundpowerlevel
LW-Oct[dB] OctavesoundpowerlevelLW-Oct=LWA+DL
DL [dB] RelativesoundpowerleveltoLWA
f [Hz] Octavemidfrequency
Lp [dB] Soundpressurelevel
LpA [dB(A)] A-weightedsoundpressurelevel
Example:
Specified: Size DN250
 Volumeflow V = 1500 m³/h
Flow velocity vA = 8.5 m/s
 Staticpressuredrop DpS= 340 Pa
Result: Radiatednoise
 Soundpowerlevel*)L
WA = 55 dB(A)
*)The mean sound pressure level in the room with the following
equipmentis:
•26 dB less with acoustic insulation
•8 dB less without acoustic insulation
 thanthesoundpowerlevelsspecifiedinthenomogramsLWA.
 However,theacousticinsulationcanonlyachievethestatedvaluesif
the connected circular ventilation ducts are soundproofed (insulated)
accordingly.
 Thesoundpressurelevelcanbefurtherreducedbycarryingout
additional sound attenuation measures on site (suspended ceilings,
high degree of room attenuation).

Adjusting voltage
Feedback voltage
1-wire control 2-wire control
1-wire control 2-wire control
Subject to change
User Manual 3.1 (2016-04)8
VR1 volume flow controller
Technicaldataforadjustingactuators,installationinstructions
Adjusting actuator M1
Adjusting actuator M2
Adjusting actuator M3
Installation instructions
• VR1 Volume flow controllers are adjusted for the entire scaled
application area.
•To install the controller, a straight inlet section which is at least
threetimesaslongasthenominaldiameterDNandastraight
outletsectionwhichisatleast1.5timesaslongasthenominal
diameterDNisrequired.Installationdirectlydownstreamorupstre-
amofflowdisruptionpoints(bends,branches,etc.)reducesthe
control accuracy.
• Thevolumeflowsetpointisadjustedduringinstallation.Thisdoes
not affect the control accuracy.
• Thebasicversionisadjustedmanuallybysettingthepointerto
the required set point on the scale and fixing this setting.
• VR1volumeflowcontrollersandSRCductsilencersaresupplied
individually.Assemblyonsite!
• Volume flow controllers with actuator-driven adjustment enable
two-pointoperation(single-wirecontrol)incombinationwiththe
actuatorsM1(230VAC)andM2(24VAC/DC).Thecorrespon-
dingmotorlimit stops arepositionedinorder to adjustthetwo
volume flows.
Inthedeliverycondition,thetwolimitstopsoftheactuatorsare
setatthe0directionoftravelandthelargestpossibleangleof
rotation. The maximum angle of rotation corresponds to the largest
possiblevolumeflowsetpoint,andtheminimumisequivalentto
a “cutoff” at a residual leakage that is significantly lower than the
minimum volume flow as specified in the catalogue.
 Thiscanbeextendedtoincludethree-point operationusingan
additional 0 circuit arrangement (two-wire control). When actuated
in this way, the actuator remains in its current position and the
VR1volumeflowcontrolleradjuststhecorrespondingsetpoint.
• Volume flowcontrollerswith actuator-drivenadjustmentin com-
bination with the actuator M3 (24VAC/DC) enable continuous
adjustmentofthesetpoint.Theactuatorisactivatedbyanadjusting
voltageY=0...10VDCandtravelstothepositionspecifiedby
theactuatingsignal;inthiscasetheoperatingrangeofthemotor
only starts at 2 V. The volume flow set point changes more or less
linearlyinrelationtotheadjustingvoltage.
 Inthedeliverycondition,theactuatorissetto0directionoftravel
andtheadjustablemechanicallimitstopsaresetforthelargest
possibleangleofrotation,whichmeansthatwhenY=10Vthe
maximum angle of rotation corresponding to the maximum volume
flow set point is approached, and at 0...2 V the minimum angle of
rotationisapproached;thiscorrespondstoa“cutoff”ataresidual
leakage that is significantly lower than the minimum volume flow
set point.
 ThepurposeofthefeedbackvoltageU=2…10VDCistoprovide
an electrical indication of the volume flow set point setting and
serveasasubsequentactuatingsignalforotheractuators.
• Alladjustingactuatorsareoverload-proof,donotrequirealimit
switch and stop automatically at the limit stop.
• Sotheycanbeadjustedmanually,adjustingactuatorsareequip-
pedwithaself-resettingpushbutton.
• Thedirectionoftravelofalladjustingactuatorscanbereversed
via a changeover switch on the motor.
• Intheeventofapowerfailure,themotorremainsinitscurrent
position and the controller controls the corresponding set point.
• Assemblyinstructionsareenclosedwiththevolumeflowcontrollers
andmustbeobserved!
M1 M2 M3
Supplyvoltage 230VAC 24VAC/DC 24VAC/DC
 Functionarea 85to265V 19.2to28.8V 19.2to28.8V
Torque 5Nm 5Nm 5Nm
Runtimefor90° 150s 150s 150s
Connectedload 4VA 2VA 2VA
Powerconsumption 1.5W 1W 1W
Degreeofprotection IP54 IP54 IP54
Connectioncable
approx. 1 m long
0.75mm² 3-wire 3-wire 4-wire
Ambienttemperature -30to+50°C -30to+50°C -30to+50°C
Technical data for adjusting actuators

Subject to change
User Manual 3.1 (2016-04) 9
VR1 volume flow controller
Orderdata,specificationtext
VR1 - - - - - -
DN size:
 80/100/125/160/200/250/315
⇒see page 3
Actuator-driven set point adjustment:
230VACtwo-point/three-pointactuator M1
24VAC/DCtwo-point/three-pointactuator M2
24VAC/DCcontinuousactuator M3
⇒ seepages2,3and8
Lip seal:
 withtwolipseals  LD
⇒ see pages 2 and 3
Maintenance-free, circular volume flow controller for position-
independent installation in circular ventilation ducts for supply
and exhaust air ventilation and air conditioning systems. Casing
and control mechanism made of galvanized sheet steel, with acoustic
insulation, with lip seals. With centrally supported damper blade for
volume flow control, with stainless steel bearing axis in special
bushings. Adjustment device with rotary pointer, scale and locking
device for the volume flow set point, can be adjusted manually or by
actuator. Volume flow controller designed as mechanical controller
for constant volume flows without auxiliary power supply. With
special control mechanism for a high degree of control accuracy
throughout the entire control range. The volume flow set point must
be infinitely adjustable throughout the control range. The volume
flow must be kept constant at variable pressures of between 50 and
1000 Pa with a deviation of roughly ±5% to ±10%. Casing tightness
class C according to DIN EN 1751. Certificate of conformity as proof
of compliance with the hygiene requirements according to VDI 6022-1,
VDI 3803, DIN 1946-4, DIN EN 13779, SWKI VA104-01, SWKI 99-3, ÖNORM H6020
and ÖNORM H6021 . With Environmental Product Declaration certificate
according to ISO 14025 and EN 15804.
........ Units
Volume flow: ......... m³/h
Pressure drop: ......... Pa
Maximum sound power level
Flow noise ......... dB(A)
including SRC duct silencer
Radiated noise ......... dB(A)
Manufacturer: WILDEBOER®
Type: VR1
Size: .........
complete with fixings deliver: ..........
install: .......... ..........
........ units SRC duct silencer 600 / 900
deliver: ..........
install: .......... ..........
Orderingexample:VR1-100-LD-DS-200-SRC900
with duct silencer
- mounting on site -
SRC600
SRC900(fromsizeDN100)
Presetting
-notwithactuator-drivensetpointadjustment
-Volumeflow[m³/h]
ThenumericalvaluemustbeintherangeVmin
and Vmaxaccordingtothesizeofthecontroller!
with acoustic insulation:
DS
⇒ see pages 2 and 3
Select texts not highlighted in bold as required!

TAKE ADVANTAGE OF OUR STRENGTHS!
Leipzig Office
Telephone:
Fax: +49 (0)
-mail: [email protected].de
[phone]
34444-310-31
E
Ulm Office
Telephone:
Fax: +49 (0)
-mail: [email protected].de
[phone]
7392-9692-20
E
Head Office and Factory
Telephone:
Fax: +49 (0)
-mail: [e-mail]
Web site: www.wildeboer.de
[phone]
4951-950-120
E
Q U A L I T Y P R O D U C T S
Fire Protection Noise ProtectionAir Distribution
INNOVATIVE PRACTICAL EFFICIENT

© 2000 ... 2016 WILDEBOERBAUTEILEGMBHD26826WEENER,GERMANY