Danfoss 087H3803 User Manual

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Reaction,o.band(outsideband)(A375applications)
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Thesettime(inseconds)determinestheburnercut-in/cut-outwhenthe
boiler/flowtemperatureisoutsidethe‘Bandlimit’IDno.11048.
Twoconditionsmustbemetinordertocut-in/cut-outthenextburnerstep:
•thesettimehaselapsedafterthelatestburnercut-in/cut-out
•theboiler/flowtemperatureisoutsidethebandlimit
SeeAppendix“ParameterIDoverview”
5...6000:
Setthedesiredtime.
Theupperillustrationshowsatypicalsituationforburnerstep
cut-inafterasavingperiod.Thetemperaturedifferencebetween
thedesiredandtheactualboiler/flowtemperatureisrelatively
large,i.e.outsidethebandlimit.
Thelowerillustrationshowsatypicalsituationforburnerstep
cut-out.Thetemperaturedifferencebetweenthedesiredandthe
actualboiler/flowtemperatureisrelativelylarge,i.e.outsidethe
bandlimit.
Ifthe‘Max.Tlimit’(IDno.11049)hasbeenexceeded,thecut-out
oftheburnerstepstakesplaceevery5seconds.
Temp.
Bandlimit
Desiredboiler/flow
temp.
Actualboiler/flow
temp.
Time
Temp.
Actualboiler/flow
temp.
Bandlimit
Desiredboiler/flow
temp.
Time
VI.GU.L2.02
©Danfoss|2017.09|131
OperatingGuideECLComfort210/296/310,applicationA275/A375

Danfoss 087H3803 Specifications

General

Brand	Danfoss
Model	087H3803
Category	Controller
Language	English