Webasto Thermo 90 Installation Manual

Coolant HeaterThermo Pro 90 D (Diesel)12 / 24 VoltInstallation Manual– Improper installation or repair of Webasto heating and cooling systems can caus

www.webasto.us 11 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Mounting the Heater to the Vehicle6. Mounting the Heater to the Vehicle6.1 Allo

Webasto Thermo & Comfort N.A., Inc. 12 www.techwebasto.comMounting the Heater to the Vehicle Thermo Pro 90Do not drill holes through top or bottom

www.webasto.us 13 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Mounting the Heater to the VehicleFigure 7: Optional perpendicular mounting wit

Webasto Thermo & Comfort N.A., Inc. 14 www.techwebasto.comConnection to the Vehicle Cooling System Thermo Pro 907. Connection to the Vehicle Cooli

www.webasto.us 15 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Connection to the Vehicle Cooling SystemThe cooling system must be bled careful

Webasto Thermo & Comfort N.A., Inc. 16 www.techwebasto.comConnection to the Vehicle Cooling System Thermo Pro 90Figure 11: System configured in se

www.webasto.us 17 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Connection to the Vehicle Cooling SystemFigure 14: System configured with an ad

Webasto Thermo & Comfort N.A., Inc. 18 www.techwebasto.comFuel Supply Thermo Pro 908. Fuel Supply8.1 General InformationThe values for the maximum

www.webasto.us 19 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Fuel Supply8.2 Fuel Standpipe InstallationThis separate fuel pickup precludes a

Webasto Thermo & Comfort N.A., Inc. 20 www.techwebasto.comFuel Supply Thermo Pro 907. bring standpipe up to horizontal and insert opposite shoulde

Thermo Pro 90 Table of Contentswww.webasto.us 3 Webasto Thermo & Comfort N.A., Inc.Contents Page1. Safety and General Information 51.1 Warning Sy

www.webasto.us 21 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Fuel Supply8.3 Fuel LinesOnly steel and plastic lines made of plasticized, ligh

Webasto Thermo & Comfort N.A., Inc. 22 www.techwebasto.comFuel Supply Thermo Pro 908.4.2 AttachmentThe metering pump must be secured with a vibrat

www.webasto.us 23 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Combustion Air Supply9. Combustion Air SupplyUnder no circumstances may the com

Webasto Thermo & Comfort N.A., Inc. 24 www.techwebasto.comExhaust System Thermo Pro 9010. Exhaust SystemThe exhaust pipe (internal diameter 38 mm)

www.webasto.us 25 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Exhaust SystemFigure 27: Exhaust pipe terminationIMPORTANT!If the exhaust tube

Webasto Thermo & Comfort N.A., Inc. 26 www.techwebasto.comElectrical Connections Thermo Pro 9011. Electrical Connections11.1 Power / Control Harne

www.webasto.us 27 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Electrical Connections11.2 Connecting the ControlsThe heater can be switched on

Webasto Thermo & Comfort N.A., Inc. 28 www.techwebasto.comElectrical Connections Thermo Pro 90The Control Panel should be installed in a suitable

www.webasto.us 29 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Electrical Connections11.3 Vehicle FanThe vehicle's own heater fan can be

Webasto Thermo & Comfort N.A., Inc. 30 www.techwebasto.comCircuit Diagrams Thermo Pro 9012. Circuit DiagramsCable Cross SectionsCable Colors Legen

Table of Contents Thermo Pro 90www.webasto.us 4 Webasto Thermo & Comfort N.A., Inc.14.2 Heater Interlock . . . . . . . . . . . . . . . . . . . .

www.webasto.us 31 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Circuit Diagrams12.1 Thermo Pro 90 Circuit Diagram LegendItem Designation Comme

Webasto Thermo & Comfort N.A., Inc. 32 www.techwebasto.comCircuit Diagrams Thermo Pro 90Figure 33: Thermo Pro 90 with ON/OFF Switch - Connection D

www.webasto.us 33 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Circuit DiagramsFigure 34: Thermo Pro 90 with 7-day SmarTemp Control fx Timer -

Webasto Thermo & Comfort N.A., Inc. 34 www.techwebasto.comInitial Start-up Thermo Pro 9013. Initial Start-upIMPORTANT!Refer to the safety instruct

www.webasto.us 35 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Troubleshooting14. Troubleshooting14.1 General InformationThe control unit cont

Webasto Thermo & Comfort N.A., Inc. 36 www.techwebasto.comTroubleshooting Thermo Pro 905x N/A6x Coolant temperature sensor interrupt or temperatur

www.webasto.us 37 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Technical Data15. Technical DataExcept where limit values are specified, the te

Thermo Pro 90 Notes www.webasto.us 38 Webasto Thermo & Comfort N.A., Inc.15.3 Thermo Pro 90 DimensionsFigure 35: Dimensions of the Thermo Pro 90 H

www.webasto.us 39 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Technical DataNOTES

Webasto Thermo & Comfort N.A., Inc.15083 North RoadFenton, MI 48430Technical Assistance HotlineUSA: (800) 860-7866Canada: (800) 667-8900www.techwe

www.webasto.us 5 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Safety and General Information1. Safety and General Information1.1 Warning Symbo

Webasto Thermo & Comfort N.A., Inc. 6 www.techwebasto.comRegulation for Installation in the Vehicle Thermo Pro 902. Regulation for Installation in

www.webasto.us 7 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Regulation for Installation in the Vehicle2.7.2 The water outlet hose must be pr

Webasto Thermo & Comfort N.A., Inc. 8 www.techwebasto.comPurpose / Version Thermo Pro 903. Purpose / Version3.1 Purpose of the Coolant HeaterThe W

www.webasto.us 9 Webasto Thermo & Comfort N.A., Inc.Thermo Pro 90 Installation4. InstallationIMPORTANT!The water heater must be installed outside

Webasto Thermo & Comfort N.A., Inc. 10 www.techwebasto.comInstallation Location Examples Thermo Pro 905. Installation Location ExamplesFigure 1: I