Valeo Thermo G 300, Workshop Manual

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Thermo G Content
1
1 Introduction 101
1.1 Content and purpose 101
1.2 Meaning of warnings and highlighted content 101
1.3 Further documentation to be used 101
1.4 Safety information and regulations 101
1.4.1 General safety regulations 101
1.4.2 Other safety information 102
1.5 Suggestions for Improvement and change 102
2 Technical data 201
2.1 Heater 201
2.1.1 Altitude capability 201
2.2 Gas pressure regulator 202
2.3 Fuel 202
2.4 Circulating pump 202
3 Description of assemblies and components 301
3.1 Burner head 302
3.1.1 Combustion air fan 302
3.1.2 Control device 302
3.1.3 Mixing chamber 302
3.1.4 Heat protection cover 303
3.1.5 ZF Module with electronic ignition unit and ionization electrode 303
3.1.6 Flame tube 303
3.2 Combustion chamber 303
3.3 Heat exchanger 303
3.4 Temperature sensors with water temperature sensor and integrated overheating protection 304
3.5 Gas pressure regulator 305
3.5.1 Heating of the gas pressure regulator 305
3.6 Circulating pump 305
4 Heater functions 401
4.1 General heater functionality description 401
4.2 Operational heater sequence 402
4.2.1 Switching on and start 402
4.2.2 Heating operation 402
4.2.3 Switching off 403
4.3 Malfunction interlock and heater interlock 404
4.4 Malfunction interlock 404
4.4.1 Malfunctions during switching-on and start procedure 404
4.4.2 Malfunctions during heater operation 404
4.4.3 Malfunctions during purge cycle 404
4.4.4 Malfunction interlock release and error clearance 405
4.5 Heater interlock 405
4.5.1 Heater interlock release 405
4.6 Error output 405
5 Troubleshooting 501
5.1 General 501
5.2 General error symptoms 501
5.3 Malfunction code output via flash code 503
5.4 Error symptoms during functional tests with malfunction code output 505
5.4.1 Error symptom "No start within safety period" 505
5.4.2 Error symptom "Flame interruption" 505