Potterton NXR5i, Installation And Service Manual

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NXR5i 17/04/2012 - 300029103-001-01
PROVISOIRE
7 Checking and maintenance
7.1 System maintenance
7.1.1 Water level
Regularly check the level of water in the system and top up if
required, taking care that cold water is not added suddenly into the
boiler when it is hot. This operation should be required only a few times in each heating
season, with very low quantities of water; otherwise, look for the leak
and repair it.
7.1.2 Draining
We advise you against draining the system unless it is absolutely
necessary. For example: Several months' absence with the risk of ice in the
building.
7.2 Maintenance
The operations described below shall only be performed
with the boiler and power supply off.
The boiler will only operate efficiently if the exchange
surfaces are kept clean.
The boiler should be cleaned as soon as required and as the
chimney,
at least once a year or more , depending upon applicable
regulations and specific needs.
7.2.1 Sweeping
Step 1:
` Cut the power supply to the boiler.
Remove the upper front panel.
Remove the front upper holding cross-bar.
Unhook the lower left and right front panels.
Remove the lower front panel.
Step 2:
` Unfasten the wing nuts and remove the 4 sweeping doors.
C001001-B
M000039
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