Danfoss Termix VMTD-F-B Installation Guide

InstallationGuideTermixVMTD-F-B
2.0Functionaldescription
Districtheatingsubstationfordirectheatingand
instantaneousdomestichotwater.
Application
TheTermixVMTD-F-Bisacompletesolutionwithbuilt-inwater
heaterandadifferentialpressurecontrolledheatingsystem.Termix
VMTD-F-Bisapplicableforsingleandmulti-familyhousesandfor
decentralizedsystems.
Districtheating(DH)
Thesubstationisprefabricatedwithadifferentialpressure
controller,attingpieceandsensorpocketsforinsertionofaheat
meteraswellasstrainerandballvalves.
Heating(HE)
Theheatingcircuitisdesignedfordirectgenerationofheat.
Thedifferentialpressurecontrolsetstheoptimumoperation
conditionsforradiatorthermostaticvalvesinordertoenable
individualtemperaturecontrolineachroom.Inordertoenablea
time-dependingtemperaturecontrolprogram,azonevalvewith
actuatorandaroomthermostatcanbeincludedasanoption.
Domestichotwater(DHW)
Thedomestichotwaterispreparedintheheatexchangerandthe
temperatureisregulatedwithathermostaticcontrolvalve.The
patentedsensoracceleratoracceleratestheclosingoftheDanfoss
AVTBvalveandprotectstheheatexchangeragainstoverheating
andlimescaleformation.TheheatexchangercoolstheDHwater
veryefciently,therebycreatingaverygoodoperatingeconomy.
ThesensoracceleratorandAVTBvalvealsoworksasabypass
keepingthehousesupplylinewarm.Thisshortensthewaiting
periodsduringsummerwhentheheatingsystemisinreduced
operation.Thesensoracceleratorhelpstoensureastablehot
watertemperatureregardlessofvaryingloads,owtemperatures
anddifferentialpressurewithouttheneedforreadjustingthevalve.
DanfossDistrictEnergy
VI.CW.C3.02/LUK40110
DEN-GT
3

Danfoss Termix VMTD-F-B Specifications

General

Brand	Danfoss
Model	Termix VMTD-F-B
Category	Water Heater
Language	English