THERMOSTAHL PELLET STAR, Instruction Manual

Page: 18 / 20

Connection with second boiler
Installation drawing of a Pellet Star with second boiler
8. GENERAL MAINTENANCE INSTRUCTIONS
According the regulations DIN 4575 and 4756 the boiler needs periodic cleaning (if necessary
even daily) by qualified personnel to ensure an economic and ecologic operation.
The boiler needs a maintenance cleaning at the end of winter season. A special care needs to
be taking with the smoke tubes cleaning, for avoiding deposits of lime and salt that may
destroy them. The burnt residues must be removed.
If a correct maintenance isn’t done properly then problems would arise such as:
Efficiency decrease
Increase of fuel consumption
Increase of burnt gas temperature
Soot sediment
Decreased draught
1. Boiler
2+3. Oil boiler and oil burner
4. Closed type expansion tank
5. 3 bar safety set (safety valve, automatic air vent, manometer)
6+7. Circulator and 3 way safety valve
8. Y-type strainer
9. 3 way mixing valve
10. Buffer tank
11. TP safety valve
12. Μπόϊλερ παραγωγής ΖΝΧ με μία σερπαντίνα
13. Filter
14. Filter
15. Automatic feeling with manometer
16. Heating and DHW Circulator
17. 3-way diversion valve
18. Boiler safety valve
19. Radiators – Heating installation
RS Ball valve
CS Check valve
RG Drain tap
TC Room thermostat
MC Control panel
SB Boiler sensor