Danfoss TTS400

4.6 Solenoids and Coils
Thesolenoidspassthehigh-pressureliquidrefrigeranttothelowpressuremotorand/orelectronicscoolingpath.
4.6.1 Solenoid and Coil Connections
Solenoidsaresecuredtotheservicesideofthecompressorhousingintheupperleft.RefertoFigure4-28Cooling
ValveBodies.
Figure 4-28 Cooling Valve Bodies
Solenoidorificesizewillvarybetweencompressormodels.Thesizecanbeidentifiedbyreadingthenumber
engravedintothesolenoidorificebody.Forsolenoididentificationbymodel,referencetheSparePartsSelection
Guide.
Solenoidactuatorcoilsaresecuredtothesolenoidsbynutstightenedatthebackofeachactuator.RefertoFigure
4-29CompressorCoolingSolenoidCoils.
24VDCPowerissuppliedtotheCoilsthroughtheBackplanefromtheSerialDriverandcontrolledbysignalsfrom
theBMCCtotheSerialDriver.ThecableisconnectedtoJ16ontheBackplane.RefertoFigure4-31Backplane-J16
Connectoronpage73.
Figure 4-29 Compressor Cooling Solenoid Coils
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