Webasto Thermo 350 Service Manual Page 1

WasserheizgeräteWater HeatersAppareils de chauffage01/2005EinbauanweisungInstallation InstructionsInstruction de montageThermo 230Thermo 300Thermo 350

Thermo 230/231/300/301/350 Installation413.2. To install the Thermo 230 / 300 / 350 heaterThe heater may be secured either with four screws M8 (Figure

Installation Thermo 230/231/300/301/35042 Fig. 5: Dimensions of the Thermo 231 / 301 heater (vertical installation)1CO2 setting2 Combustion air intake

Thermo 230/231/300/301/350 Installation433.3. To install the Thermo 231 / 301 heaterThe heater is to be secured with four M8 screws (Figure 7), body w

Installation Thermo 230/231/300/301/350443.4. Model plateThe model plate must be protected from damage and must be clearly legible when the heater is

Thermo 230/231/300/301/350 Installation example for the Thermo 230 / 300 / 350 heater454 Installation example for the Thermo 230 / 300 / 350 heater Fi

To install the circulating pump Thermo 230/231/300/301/350465 To install the circulating pumpThe circulating pump must be installed as shown in Figure

Thermo 230/231/300/301/350 To install the circulating pump475.2. Aquavent 5000 S circulating pump Fig. 14: Aquavent 5000 S circulating pump Install

To install the circulating pump Thermo 230/231/300/301/350485.3. U 4851 circulating pump Fig. 17: U 4851 circulating pumpInstallation position0-9

Thermo 230/231/300/301/350 To install the circulating pump495.4. Aquavent 6000 S circulating pump NOTE:When connecting the circulating pump is must

To install the circulating pump Thermo 230/231/300/301/350505.5. Motor for the U 4851 / Aquavent 6000 S circulating pumpThe U 4851 / Aquavent 6000 S c

Thermo 230/231/300/301/350IIIImproper installation or repair of \/Vebasto heating and cooling systems can cause fire or the leakage of deadly carbon m

Thermo 230/231/300/301/350 Connection to the vehicle cooling system516 Connection to the vehicle cooling systemThe heater is connected to the vehicle

Fuel supply Thermo 230/231/300/301/350527 Fuel supplyThe fuel is taken from the vehicle fuel tank or from a separate fuel tank.7.1. Fuel linesFuel lin

Thermo 230/231/300/301/350 Combustion air supply538 Combustion air supplyUnder no circumstances may the combustion air be taken from areas occupied by

Exhaust pipe Thermo 230/231/300/301/350549 Exhaust pipeThe opening of the exhaust pipe must not point towards the front of the vehicle.The exhaust pip

Thermo 230/231/300/301/350 Electrical connections5510 Electrical connections10.1. Heater connectionIMPORTANT HIGH VOLTAGE:Danger of death. Disconnect

Electrical connections Thermo 230/231/300/301/3505610.5. Water Temperature Control Thresholds::10.5.1. Pin Assignment of Cable Harness for Control Thr

Thermo 230/231/300/301/350 Electrical connections5710.6. Legend for circuit diagrams➀ Diagnostic connector➁ Digital timer P:with positive at connectio

Electrical connections Thermo 230/231/300/301/35058Item Designation CommentA1 HeaterA2 Control module SG 1572 DB1 Flame sensor Check polarityB2 Temper

Thermo 230/231/300/301/350 Electrical connections59Fig. 23: System circuit for Thermo 230 / 231 / 300 / 301 / 350 24V with control module 1572 D, with

Electrical connections Thermo 230/231/300/301/35060Fig. 24:System circuit for Thermo 230/231/300/301/350 24V with control module 1572 D, with standard

Thermo 230/231/300/301/350IVInhaltsverzeichnis1 Gesetzliche Bestimmungen für den Einbau . . . . . . . . . . . . 12 Verwendung / Ausführung . . . . .

Thermo 230/231/300/301/350 Electrical connections61Fig. 25: System circuit for Thermo 230 / 300 / 350 Rail 24V with control module 1572 D, with standa

Starting the heater for the first time Thermo 230/231/300/301/3506211 Starting the heater for the first timeNOTE:Refer to the safety instructions in t

Thermo 230/231/300/301/350 Maintenance6312 MaintenancePeriodic service activities have to be performed in accordance with Chapter 8 and Appendix A of

Troubleshooting Thermo 230/231/300/301/3506413 Troubleshooting13.1. Fault lock-outIf it recognises one of the following fault features, the heater wil

Thermo 230/231/300/301/350 Troubleshooting6513.2. Fault code output on heaters with control module 1572DIf the system is equipped with a standard time

Technical data Thermo 230/231/300/301/3506614 Technical dataExcept where limit values are specified, these technical data refer to the usual heater to

Thermo 230/231/300/301/350 Technical data67 Heater Thermo 230 Thermo 231 Thermo 300 Thermo 301 Thermo 350Type Thermo 230 Thermo 231 Thermo 300 Thermo

Technical data Thermo 230/231/300/301/35068 Optional Fuel Filter Heater Circulating pump U 4814 Aquavent 5000 S U 4851 Aquavent 6000 SDelivery rate

Thermo 230/231/300/301/350 Statutory regulations governing installation351 Statutory regulations governing installation1.1. Statutory regulations gove

Statutory regulations governing installation Thermo 230/231/300/301/350362.4. Exhaust system2.4.1.The exhaust outlet must be positioned in such a way

Thermo 230/231/300/301/350 Use / version372 Use / version2.1. Use of the water heatersThe Webasto Thermo 230/231/300/301/350 water heaters are used in

Installation Thermo 230/231/300/301/350383 InstallationIMPORTANT– The statutory regulations governing installation on pages 35 and 36 must be adhered

Thermo 230/231/300/301/350 Installation39 Fig. 1: Dimensions of the Thermo 230 / 300 / 350 heater (horizontal installation)1CO2 setting2 Combustion

Installation Thermo 230/231/300/301/35040Fig. 2: Dimensions of the Thermo 230 / 300 / 350 Rail heaterø70,3415ca 22626,5ø38ca.145ca.440ca. 25°ca.44038