Applications Guide

CSC-3000 Series Pneumatic VAV Reset Volume Controllers 2 Applications Guide, Rev G
Mounting
TheCSC-3000Seriesarepositionsensitive.They
must be mounted and calibrated in either the
horizontal or vertical plane.
1. Asneartotheowsensorpickupasisfeasible,
connectthemountingbrackettothemounting
surfacewithtwoself-threadingscrewsinthetwo
3/16"(5mm)mountingholes.Besuretoleave
enoughroomtomakeconnections.
2. Insertthecontroller,facedown,up,rightorle.
Thecontrollermustbeinstalledandadjustedin
thesameplaneorreadjustmentwillbenecessary.
NOTE: Thesecontrollersareusedonsingleand
dualductapplications.Whenworkingon
dualductapplications,itmaybenecessary
toworkononeductatatime.
NOTE: Anysequencingwithothercontrollers,
valves,orpneumatic-electricrelaysmust
bedonewiththecontroller’sresetrange,
NOTtheactuator’sspringrange.
General Information
CSC-3000 Series Overview
TheseCSC-3000seriesresetvolumecontrollersare
designedforuseonheatingorcoolingsystemswith
(normallyopenornormallyclosed)VAVterminal
unitsand(directorreverseacting)thermostats.
Theyaresub-masterairvelocitycontrollers.Eachis
equippedwithseparateadjustmentknobsformini-
mumandmaximumairowsetpoints.Modelsare
availablewithvariousresetstartpoints.Amaster
controller,typicallyaroomthermostat,resetsthe
CSC-3000betweentheminimumandmaximum
velocitysetpoints.
TheuniversaldesignoftheCSC-3000seriesisin-
tendedforneworreplacementapplicationsthatcall
fordirectorreverseactingresetonnormallyopenor
normallyclosedVAVterminalunits.
More Information
Forspecications,seetheCSC-3000 Series Data
Sheet.
This Application Guide does not apply (complete-
ly) to the CSC-3014 (designed to work with CTC-
2100 Thermostats) or the CSC-3501/3505 (Linear
Volume Reset Controllers).
Seetheirseparatedata
sheetsandinstallationguides.
For adjusting start point and
span (upper and lower knobs)
review the respective sections
All adjustments
are CCW to
increase
All dimensions are
in inches (mm).