Ferroli Optimax 25C- Modena HE Replacement Manual - page 9
BOILER REPLACEMENT: OPTIMAX 25C TO MODENA 32C HE
Fig.13
Fig.14
Fig. 15
Sample points: 1 = Air / 2 = Flue Gas
16. Commissioning the boiler:
(see 3.3 of the Modena C HE Installation Instructions)
Connect a manometer to the inlet test point of the gas
valve (Fig.13)
Set the boiler to operate at maximum by selecting ‘TEST
MODE’ and check that the operational (working) pressure
at the gas inlet pressure test point is 20 mbar.
To enter and exit ‘TEST MODE’, press the CH + & - buttons
simultaneously for 5 seconds (Fig.14)
A pressure of 20 mbar should be obtained with all other
gas appliances operating.
Please note: there may be a pressure loss across the
isolation valve to the gas valve inlet test point of up to 1.3
mbar at maximum.
Remove the manometer & re-tighten the inlet test point.
17. Measure the gas rate of the boiler and check against the
following table;
18. Connect the flue gas analyser to the flue sample point
(Fig.15); with the boiler still in TEST MODE check that the
readings are within the tolerances set out in the table
below;
If the readings are satisfactory, replace the boiler front cover.
Test the correct operation of the boiler, central heating system and DHW.
Advise the customer on the operation of the new boiler and any new controls.
Complete the “Benchmark Log Book