BOILER REPLACEMENT: MODENA 80/102 TO MODENA C E
18. 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.
A pressure of 20 mbar should be obtained with all other
gas appliances operating.
To enter and exit ‘TEST MODE’, press the CH
+
&
-
buttons simultaneously for 5 seconds (Fig.14)
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.
14.
Measure the gas rate of the boiler and check against
the following table;
15.
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;
Fig.13
Fig.14
Fig. 15
Sample points: 1 = Air / 2 = Flue Gas
•
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
