Combustion Analysis - Ferroli PEGASUS D Ki 100 Instructions For Use Manual

PEGASUS D Ki 100
Hot water tank cleaning (to be carried out every 2-3 years, depending on water aggressiveness)
• Remove the front panel of the hot water tank (6 - fig. 21).
• Close the hot water tank on-off valves and open the drain cock.
• After draining, remove the inspection flange and carry out cleaning. Use specific products available on the market.
Do not use metal tools to remove the scale.
• After cleaning, refit the inspection flange and hot water tank front panel and open the on-off valves.
Magnesium anode
The degree of deterioration of the magnesium anode (4 - fig. 21) can be checked directly from the outside by unscrewing
it from the hot water tank flange (after turning off the domestic hot water supply and draining the hot water tank).
This check is advisable at least once a year.
If the water is very hard, above 20 degrees French, install a water softener in the system.
Draining the hot water tank and heating system
• To drain the hot water tank, use the drain cock 233 of fig. 25 after closing the valves for filling from the water system;
use a hot water drawing point (washbasin, shower, etc.) as a vent.
• To drain the heating system completely, use the cock 275 of fig. 25 after releasing the shutters of the two non-return
valves detail 179 of fig. 25 (also see fig. 22). Use the radiator valves as vents.
If the boiler is connected to the system by service gate valves, check their complete opening. If the boiler is posi-
tioned higher than the radiators, the part of the system including the radiators must be drained separately.
• To drain just the water contained in the boiler, close the on-off valves and fully open the cock (255 - fig. 25). Then
release the shutters of the non-return valves (179 - fig. 25). Lastly, open the cock 197 of fig. 25).
Before filling the system again, remember to close the drain cock and radiator vent valves and lock the shutters
A
of the non-return valves 179 of fig. 25.
A - Shutter locked
B - Shutter released

Combustion analysis

A point for sampling fumes has been included inside the boiler, in the upper part of the anti-backflow device (detail 7 -
fig. 21).
To take the sample:
1. Remove the upper panel of the boiler
2. Remove the insulation placed over the anti-backflow device;
3. Open the fume sampling point;
4. Insert the probe;
5. Activate the TEST mode
6. Wait 10-15 minutes for the boiler to stabilise*
7. Take the measurement.
Analyses made with an unstabilised boiler can cause measurement errors.
A
EN
A
fig. 22
cod. 3540L870 - 03/2009 (Rev. 00)
B
19