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LAARS Heating Systems
FRONT
SIDE
Figure 3. Dimensions.
7. Remove soot and scale deposits from tubes with
a flexible wire brush, taking care not to damage
“ceraform” combustion chamber, below outer
tubes.
8. Vacuum out accumulated deposits from
combustion chamber through burner port, taking
care not to damage “ceraform” combustion
chamber.
9. Replace all parts, ensuring flue-baffles are
correctly located. Ensure flue collector and
smoke-pipe are tightly sealed.
1.18 Cleaning the Chimney
Sweep all soot deposits from chimney and
smoke-pipe once a year, preferably at the end of the
heat ing season. It is also advisable to in spect the
chim ney and smoke-pipe at the be gin ning of heating
season as birds may have built their nest inside or
other material may be caus ing a blockage.
1.19 Servicing the Burner
This should only be carried out by a trained and
licensed service technician in accordance with the
burner mak er’s instructions.
1.20 Maintenance of the Tankless Coil
After several years of use, the water flow through
the coil may become restricted by mineral deposits
from the water. Mild accumulations may be removed
by an acid treatment but your servicing company can
advise on the most satisfactory method of clean ing or
whether a re place ment coil is necessary.
1.21 Coil Removal
1. Switch off electrical supply and turn off water to
boil er.
2. Valve off zones and drain boiler and DHW coil.
3. Disconnect the pipe connections to the coil.
4. Unscrew the eight retaining bolts from coil plate.
5. Pull out coil and clean or fit replacement as
necessary.
6. Ensure gasket makes a water tight seal.
7. Refill boiler, open valves and check for leaks.
Domestic
Water In
(Cold)
Domestic
Water Out
(Hot)
OUT OF
PRODUCTION
