Danfoss 087H3803 User Manual

MENU>Settings>Boiler
Mrun(runningtimeofthemotorizedcontrolvalve)
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‘Mrun’isthetimeinsecondsittakesthecontrolledcomponenttomove
fromfullyclosedtofullyopenposition.
SeeAppendix“ParameterIDoverview”
Setthe‘Mrun’accordingtotheexamplesormeasuretherunning
timebymeansofastopwatch.
Howtocalculatetherunningtimeofamotorizedcontrolvalve
Therunningtimeofthemotorizedcontrolvalveiscalculatedusing
thefollowingmethods:
Seatedvalves
Runningtime=
Valvestroke(mm)xactuatorspeed(sec./mm)
Example:
5.0mmx15sec./mm=75sec.
Rotatingvalves
Runningtime=
Turningdegreesxactuatorspeed(sec./degr.)
Example:90degr.x2sec./degr.=180sec.
MENU>Settings>Boiler
Nz(neutralzone)
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Whentheactualflow/ducttemperatureiswithintheneutralzone,the
controllerdoesnotactivatethemotorizedcontrolvalve.
SeeAppendix“ParameterIDoverview”
Settheacceptableflow/ducttemperaturedeviation.
Settheneutralzonetoahighvalueifyoucanacceptahigh
variationinflowtemperature.
Theneutralzoneissymmetricalaroundthedesiredflow/duct
temperaturevalue,i.e.halfthevalueisaboveandhalfthevalueis
belowthistemperature.
MENU>Settings>Boiler
Min.act.time(min.activationtimegearmotor)
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Themin.pulseperiodof20ms(milliseconds)foractivationofthegear
motor.
SeeAppendix“ParameterIDoverview”
SettingexampleValuex20ms
240ms
10200ms
501000ms
Thesettingshouldbekeptashighasacceptabletoincreasethe
lifetimeoftheactuator(gearmotor).
MENU>Settings>Boiler
Control,delay
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SeeAppendix“ParameterIDoverview”
MENU>Settings>Boiler
Min.offtime
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SeeAppendix“ParameterIDoverview”
VI.GU.L2.02
©Danfoss|2017.09|133
OperatingGuideECLComfort210/296/310,applicationA275/A375

Danfoss 087H3803 Specifications

General

Brand	Danfoss
Model	087H3803
Category	Controller
Language	English