Braeburn 149020 Bedienungsanleitung

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SPC (Static Pressure Controller)

•AirPressureSensingSwitch

•For use with PO/PCDampers

•Adjustable Air Switch Set Point Range

Specifications

Mounting

.(SeeFigure3)

SetPoint0.05±0.02"w.c.to2.0"w.c.

Range

FieldAdj.0.07”w.c.to2.0"w.c.

OperateRange

FieldAdj.0.04”w.c.to1.9"w.c.

ReleaseRange

FieldAdj.0.07”w.c.to2.0"w.c.

OperateRange

Approx.Switching

Differential0.02±0.01”w.c.atminimum

setpointto0.1w.c.atmaximum

setpoint.

MeasuredMedia

MaximumPressure½psi(0.03bar)

Operating-40ºFto180ºF(-40ºCto82ºC)

Temperature

Electrical300VApilotdutyat115to

Rating277VAC,15Ampsnon-inductive

277VAC@60Hz

ContactSPDT

Arrangement

SampleLine¼”Barbedconnectorsfor

Connectionstubing

ApprovalUL,FM,CSA,CE

Mounting

Air Sample Connection

Initial-Position Relay

Selectamountinglocationwhichisfreefromvibration.

TheSPCmustbemountedwiththediaphragminanyverti-

calplaneinordertoobtainthelowestspecifiedoperating

setpoint.Avoidmountingwiththesamplelineconnections

inthe“up”position.Surfacemountingbythetwo3/16“

diameterholesintheintegralmountingbracket.The

mounting holes are 3 7/8” apart as shown in Figure 3.

TheSPCisdesignedtoacceptaflexibletubingbymeans

ofabarbed1/4”slip-onconnection.A36”pieceof¼˝ED

FlexibleTubingisincludedwiththeSPCaswellasthe

PitotTubeformountingintheplenum.Locatethesam-

plingprobeaminimumof2feetdownstreamfromtheair

source. Installthesamplingprobeasclosetothecenterof

theairstreamaspossible. Donotallowsupplypressureto

blowdirectlyintothePitotTube. Connecttheprovided

flexibletubingtothe High-PressureInletasshownin

Figure 2.

EachSPCincludesaSPDTRelaythatshouldbewiredin

conjunctionwiththeSPCandPower-Open/Power-Close

DamperasshowninFigure1.Thisrelayisincludedso

thatwhenthereisNOCALLfortheFANontheequipment

sideoftheBraeburnZoneControllerthebypassdamper

willdriveopen. WhenaFANcalloccurstherelayallows

SPC to operate normally.

TheSPCisastaticpressureswitchdesignedtosensepositivepressurein

the plenum for the purpose of controlling modulating bypass position.

Theplatedhousingcontainsadiaphragm,acalibrationspringandasnap-

actingSPDTswitch.Thebarbedsamplelineconnectionslocatedoneach

sideofthediaphragmaccept flexibletubing.Theenclosurecoverguards

againstaccidentalcontactwiththeliveswitchterminalandsetpointadjust-

ing screws. The enclosure cover will accept a ½˝ conduit connection.

Pitot tube (air-probe) for mounting in plenum and 36 inches of flexible

¼ ˝ I.D. poly tubing is included with each SPC.

InitialPositionRelayincludedtomaintainopendamperpositionduringNO

FAN CALL (Not pictured).

Mount with the diaphragm in any

vertical plane.

Progressive increasing from

that will not degrade silicone

General Description

BraeburnSystemsLLC,2215CornellAvenue,Montgomery,Illinois60538,U.S.A.

Telephone(866)268-5599,Facsimile(866)268-3611

Air or combustion by-products

Produktspezifikationen