AERMEC TRA Manuel Technique page 18

the cock
N.B. any regulations must be done by
moving the cock along the valve stem
so that it is in a position that meets
both the abovementioned conditions. .
Maintenance of the bleed
cock
Make sure that the cock discharges
without hindrance and that there are
no even partial impediments limiting its
functioning.
CHART SHOWING PERIODIC MAINTENANCE AND CHECKS
TYPE OF OPERATION REFERENCE
Check of the circuit water quality
Biological pollutant concentration check
Maintenance of the casing
Maintenance of the fan motor assembly
Maintenance of the filling body
Maintenance of the drop separator
Maintenance of the water distribution system
Maintenance of the splash guard fins
Maintenance of the floating cock
Maintenance of the bleed cock
Maintenance of the heating system
tank (if there is one)
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If clogged, the cock can easily be
unscrewed from the three-way fitting
housing it and dismantled for cleaning.
If the clogging has been caused by
chalk or lime deposits it is possible to
wash with the appropriate products that
dissolve the lime and are easy to find on
the market.
Given the vicinity of the hydrometer in
glycerine and cock it is probable if the
latter is clogged so will the opening
of the pressure gauge be as well: it is
therefore as well that while dismantling
the cock the hydrometer is checked and
SECTION
3.4.5
6.2
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
cleaned as well.
Maintenance of the water heating
system in the tank (if there is one)
If the tank is fitted with one or more
electrical heating elements, the correct
setting of the thermostat and the
operation of the minimum level switch
must be checked and parts of the system
cleaned periodically.
EVERY EVERY
WEEK MONTH
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EVERY EVERY
6 MONTHS YEAR
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