Spheros Thermo E 320 - Introduction; Content and Purpose; Workshop Manual Validity; Meaning of Highlighted Content

Thermo E 200 / 320 1 Introduction
1
1 Introduction
1.1 Content and purpose 101
1.2 Workshop manual validity 101
1.3 Meaning of highlighted content 101
1.4 Additional applicable documentation 101
1.5 Installation and safety regulations 101
1.5.1 Legal installation regulations 101
1.5.2 General safety regulations 101
1.5.3 Combustion air supply 104
1.5.4 Exhaust line 104
1.5.5 Temperature sensor 104
1.6 Suggestions for Improvement and change 104
2 Technical Data
2.1 Electrical components 201
2.2 Fuel 201
3 Description of assemblies and components
3.1 Burner 302
3.1.1 Combustion air fan 302
3.1.2 Fuel pump 302
3.1.3 Nozzle block preheater 303
3.1.4 Control unit 303
3.1.5 Electronic ignition unit with ignition electrodes 304
3.1.6 Temperature sensors with water temperature sensor and integrated
overheating protection 304
3.2 Heat exchanger 304
3.3 Combustion chamber 305
3.4 Circulating pump 306
3.4.1 Aquavent 5000 (U4814) and Aquavent 5000S (U4854) circulating pumps 306
3.4.2 Aquavent 6000C (U4855) and Aquavent 6000SC (U4856) circulating pumps 307
3.5 Fuel filter 307
4 Heater functions
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