FanCoils
INSTALLATION,OPERATION,&MAINTENANCEMANUAL
10
SECTIONTWO
—StartUp,Cont'd.
Eachunitshouldbecheckedfor:
1. freeblowerwheeloperation
2. loosewires
3. looseormissingaccesspanelsordoors
4. cleanlterofthepropersizeandtype
Exceptasrequiredduringstart-upandbalancingoperations,
nofancoilunitsshouldbeoperatedwithoutalltheproper
ductworkattached,supplyandreturngrillesinplace,andall
accessdoorsandpanelsinplaceandsecure.Failuretodo
socouldresultindamagetotheequipmentorbuildingand
furnishings,and/orvoidallmanufacturer’swarranties.
Cooling/Heating System
Priortothewatersystemstart-upandbalancing,the
chilled/hotwatersystemsshouldbeushedtocleanout
dirtanddebriswhichmayhavecollectedinthepiping
duringconstruction.Duringthisprocedure,allunitservice
valvesmustbeintheclosedposition.Thisprevents
foreignmatterfromenteringtheunitandcloggingthe
valvesandmeteringdevices.Strainersshouldbeinstalled
inthepipingmainstopreventthismaterialfromentering
theunitsduringnormaloperation.
Duringsystemlling,airventingfromtheunitis
accomplishedbytheuseofthestandard,manualairvent
tting,ortheoptional,automaticairventttinginstalled
onthecoil.ManualairventsarebasicallySchradervalves.
Toventtheairfromthecoil,depressthevalveuntiltheair
hasventedthecoil.Whenwaterbeginstoescapethrough
thevalve,releasethevalve.Automaticairventsmaybe
unscrewedoneturncounterclockwisetospeedinitial
venting,butshouldbescrewedinforautomaticventing
afterstart-upoperations.
CAUTION! The air vent provided on the unit is
not intended to replace the main system air vents
and may not release air trapped in other parts of the
system. Inspect the entire system for potential air traps
and vent those areas as required, independently. In
addition, some systems may require repeated venting over
a period of time to properly eliminate air from the system.
Air System Balancing
Allductworkmustbecompleteandconnected.Allgrilles,
lters,andaccessdoorsandpanelsmustbeproperly
installedtoestablishactualsystemoperatingconditions
BEFOREbeginningairbalancingoperations.
Eachindividualunitandtheattachedductworkisa
uniquesystemwithitsownoperatingcharacteristics.For
thisreason,airbalancingisnormallydonebybalance
specialistswhoarefamiliarwithallproceduresrequired
toproperlyestablishairdistributionandfan-system
operatingconditions.Theseproceduresshouldnotbe
attemptedbyunqualiedpersonnel.
Exposedunitswithoutductworkdonotrequireair
balancingotherthanselectingthedesiredfanspeed.
Afterpropersystemoperationisestablished,theactual
unitairdeliveryandtheactualfanmotoramperagedraw
foreachunitshouldberecordedinaconvenientplacefor
futurereference.
Eco-telligent
®
Motor
IftheunitisequippedwithanECMblower,additional
stepsmayberequiredduringtheairbalancingprocess.
Reviewprojectsubmittalsororderacknowledgment
todeterminewhichECMcontrolschemetheunithas.
Alternatively,matchthecontrolboardtotheillustrations.
CAUTION! Both of the procedures described
below require the control box to be powered
while adjustments are made. Line voltage components
are concealed behind a secondary cover. However,
installer should still take all reasonable precautions.