Maintenance And Cleaning - Ferroli Rendimax 23 CE Installation And Operating Instructions Manual

6. MAINTENANCE AND CLEANING

The following operations must be carried out by qualified personnel only.
The boiler requires no particular maintenance other than general control of boiler and chimney once
a year.Each three years the at the end of heating season boiler burner and chimney has to be cleaned.
6.01 Seasonal control of boiler and flue
Once a year before the heating season, the following controls should be carried out:
- the burner and boiler body and chimney should be clean. To clean them, you are advised to use a
soft brush or compressed air. Avoid chemical products;
- water pressure in the system (cold) should be between 0.5 and 1 bar. If not, bring it back to this
value. If the system is open vessel, check the water level in the tank.
- control and safety devices (gas valve and thermostats) should be working correctly;
- the thermocouple is free from scale and the pilot flame wraps it correctly (fig. 10)
- the pumps must not be blocked;
- the system should be free of gas or water leaks;
- gas flow rate and pressure should be in line with the values given in the table;
- the complete length of the flue gas evacuation pipe (flue and flue to boiler connection pipe)
should be clean and free from leaks.
6.02 Flame at pilot burner
IGNITION IGNITION
IGNITION IGNITION IGNITION
ELECTRODE ELECTRODE ELECTRODE ELECTRODE ELECTRODE
S.p.A.
THERMOCOUPLE THERMOCOUPLE THERMOCOUPLE
THERMOCOUPLE THERMOCOUPLE
Fig. 10
15