A.O. Smith 110 Boiler User Manual


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Installation and Service Manual Upsilon-Series
55
Ignitionelectrode
Replace the ignition electrode when necessary, but certainly every 4 years.
This can be checked by reading out the ionisation current. The minimum ionisation cur-
rent has be greater than 2,0 µA at full capacity.
To read out the ionisation current follow the instructions:
From the standard blue screen display:
1. Press down the arrow buttons simultaneously for 2 seconds;
2. Continue with point 3.
From the setting level with a green screen:
3. Select using the right arrow button: Info;
4. Press the OK button;
5. Press the right arrow button until: Burners
6. Press the OK button;
7. Press the right arrow button until: Flame.
The ionisation currunt is shown here in µA. With the + and - button the value of burner
A and B can be shown (heat exchanger symbol turns from A to B).
If the sight glass is damaged, the complete ignition electrode has to be replaced.
Replace as follows:
- Remove the plug connections of ignition electrode;
- Push the clips on either side of the electrode to the outside and remove the electrode;
- Remove and replace the gasket;
Assembly is done in reverse order.
Condensatecontainer(refertog.13.3.cande)
Takeprecautionstopreventcondensatefallingonelectronicsandotherboiler
partsduringdismantlingtoavoiddamageoftheseparts.
- Remove the short clamping bars (7 and 8) by loosening them a quarter of a turn. In
doing so, pay attention to the turning direction (red check cams).
- Pull the clamping bars forward and away from underneath the condensate container.
- Carefully push the condensate container (12) down and remove it from the front;
- Replace the condensate container gasket by a new one.
- Clean the polluted condensate container with water and a hard brush.
- Check the condensate container for any leakages.
Assembly is done in reverse order.
Ensure proper all around sealing of the gasket when installing the condensate container.
Ensureduringassemblythattheclampingbarsareproperlypositioned.Theyhave
tobeinaverticalposition.
Duringmaintenancealwaysreplacethegasketsofdismantledparts.
Flame
0.00 uA
gure 13.3.h
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