Danfoss ECL Comfort A368 User Manual

MENU>Settings>Boiler
Reaction,inband(A375applications)
1x075
Thesettime(inseconds)determinestheburnercut-in/cut-outwhenthe
boiler/flowtemperatureisinsidethe‘Bandlimit’IDno.11048.
Threeconditionsmustbemetinordertocut-in/cut-outthenextburnerstep:
•thesettimehaselapsedafterthelatestburnercut-in/cut-out
•theboiler/flowtemperatureisinsidethebandlimit
•thechangeinboiler/flowtemperaturehasbeenlessthan1K/minute
(thetemperaturegradientislessthan1K/minute)
SeeAppendix“ParameterIDoverview”
5...6000:
Setthedesiredtime.
Theillustrationshowsatypicalsituationwheretheactualboiler
/flowtemperatureisrelativelyclosetothedesiredboiler/flow
temperature,i.e.insidethebandlimit.
Temp.
Difference
Desiredboiler/flow
temp.
Bandlimit
Actualboiler/flow
temp.
Time
Temp.
Actualboiler/flow
temp.
Bandlimit
Desiredboiler/flow
temp.
Difference
Time
MENU>Settings>Boiler
Xp(proportionalband)
1x184
SeeAppendix“ParameterIDoverview”
Settheproportionalband.Ahighervaluewillresultinastablebut
slowcontroloftheflow/ducttemperature.
MENU>Settings>Boiler
Tn(integrationtimeconstant)
1x185
SeeAppendix“ParameterIDoverview”
Setahighintegrationtimeconstant(inseconds)toobtainaslow
butstablereactiontodeviations.
Alowintegrationtimeconstantwillmakethecontrollerreactfast
butwithlessstability.
132|©Danfoss|2017.09
VI.GU.L2.02
OperatingGuideECLComfort210/296/310,applicationA275/A375

Danfoss ECL Comfort A368 Specifications

General

Brand	Danfoss
Model	ECL Comfort A368
Category	Controller
Language	English