MODENA S HE
25
EN
cod. 3541C364 - Rev. 00 - 12/2012
Re-check the Minimum Rate
Turn off the boiler and then turn it back on and put in Test Mode at maximum for 1minute. Reduce to mini-
mum and re-check
the minimum rate output ensuring the CO2 setting level has remained unchanged and confirm that
the CO/CO
2
ratio is within limits.
In the event that the CO
2
setting level with an acceptable CO/CO
2
ratio cannot be obtained please contact the
helpline number.
Should you require any assistance during the set up procedure call our Technical service helpline or
should you
require a service engineer to visit call our service centre at numbers listed on last page of this manual.
fig. 31 - Gas valve
A
Throttle
B
Offset adjustment
NOTE:
In the event that an acceptable setting level
cannot be obtained it will be necessary to change the
Air/Gas Ratio Valve.
A
B
A