Polyaire Zonemaster Variable Air Volume - Spill;Bypass Air Setpoint - Master Touchpad

3) Pressbuttononceagain,theLCD 
       screenwilldisplaythe‘L_Limit’.
4) Pressorbuttontochangethe 
low limit to the desired value. The adjustable
       rangeofthelowlimitisfrom0°Cto15°C.
 Ifthecustomerdoesnotwantthesafety 
       function,thesafetyH-limitandL-limit
       MUSTbedisabledbypressingbutton
       duringthesetup.
Spill or Bypass Modes
A‘Spill’or“Bypass”functionisdesignedtorelievepressureintheductif
toomanyzoneshavebeenturnedoff.
Spill Mode
TheVAVsystemhasaninbuilt“Spill”systemthatwillautomaticallyopen
ventsiftoomanyhaveinadvertentlybeenclosed.Thepresetfactory
defaultis30%ofthetotalnumberofzones.ThePresetFactorydefault
canbevariedbutwerecommend30%asthelowestsafevaluetoprotect
theduct.InSpillmodethezoneswiththelowestaddressesinthesystem
areautomaticallyopenedifthetotalnumberofopenzonesislessthanthe
assignedspillsetpoint.(IE:Ifthesystemhas10zonesnumbered1-10
andallhavebeenclosedtheVAVwillautomaticallyopenzones1,2,3to
relievethepressure.Theonlywaytoclosethese“spill”zonesistomake
sureatleast3otherzonesareopen.
Bypass Mode
Thealternativewaytorelievepressureintheductistoinstallaductfrom
theA/Coutletviaamotorizeddampertothereturnairduct.Thissystem
shouldonlybeusedwherethespillfunctionisconsideredunsatisfactory.
InBypassmode,aspecicdamperisusedtoreturntheairdirectlytothe
return air duct if the total number of zones open is less than the setpoint.
Thebypassdamperiscontrolledbyaspecicdampercontrollerwithits
own unique address.
Note:EnsurethattheAirConUnitReturnAirSensorispositionedinthe
returnairductbetweentheBypassductandtheunitsothatitcanregister
theairfromthebypassduct.
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