Reznor ULSA 035(EC) - Electrical Connections

1701ULSA(EC)--EN, p. 19/30
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10ELECTRICALSUPPLY&CONNECTIONS
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10.1ELECTRICALSUPPLY
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DANGER
 THISAPPLIANCEMUSTBEEARTHED.
 Theelectricalinstallationmayonlybecarriedoutbysuitablyqualifiedpersonsobserving
therulesinforce.
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Checkthattheelectricalspecificationsareinaccordancewiththedataontheairheater.Allelectricalconnections
shouldbeinaccordancewiththeterminalmarkingsandthewiringdiagramaffixedtotheairheater.
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Theminimumexternalcontrolsrequiredfortheairheaterarearoomthermostat.Itis
essentialthatthemain
inputlineandneutraltoterminalsLandNremainsliveatalltimesevenwhentheapplianceisswitchedoff,thisis
toensurecorrectoperationoftheunit.
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Theminimumclearancedistancebetweenthecontactsmustbemorethan3mm.Checkthattheair
heateriswell
earthedandthatanearthleakagetestiscarriedout.Theelectricalsupplylinetotheheatershouldincludeamain
isolatingswitch.
AnexternalorangeindicatorlightisfittedontheheatertosignifywhentheburnerisON.
Anexternalburnerresetswitchwithredindicator
lightisfittedontheheater.Toaddaremoteresetbutton,make
connectionstotheterminalsintheelectricboxasindicatedonthewiringdiagram.
Ensurethatallcablesandinstallerswiringareappropriatelyfixedandthattheydonottouchthefluecombustion
collectorbox.
Toensure
thattheunitisairtight,allunusedcablecouplingsmustbehermeticallysealed.
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Attention
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‐ Permanentdamagecanoccurto the burnerrelaywhenfaulty/incorrectconnectionstothe
thermostat,resetswitchorburnerfailurelamparemade!
‐ Switchingofwiresforresetswitchandflamefailurewilldestroytheburnerrelay.
‐ Iftheresetbuttonrequiresactivatingforanyreason,thecausemustbe
determined.After
determiningandcorrectingtheproblem,restarttheheaterandmonitorlongenoughto
ensureproperoperation(approx.5minutes).
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10.2THERMOSTATLOCATION
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General
Donotattempttocontrolmorethan1heaterfromasinglethermostatorcontrolpanelunlessaproperlywired
relayisfitted.Followtheinstructionssuppliedwithsuchpanels.
Thelocationoftheroomthermostatorsensorisveryimportant.Itshouldnotbepositionedonacoldwallor
cold
surface.Avoidlocationindraughtyareasorwhereitmaybeinfluencedbyheatsourcese.g.thesun,processplant,
etc...
Thethermostatshouldbemountedonavibrationfreesurfaceandmountedabout1.5mabovefloorlevel.
Followthethermostatmanufacturer’sinstructions.