Ariston PRIMO HE ITD 250 Istruzioni per l'installazione, la manutenzione e il funzionamento - Pagina 25

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10) Test the operation of the temperature & pressure relief and expansion
valves by lifting/turning the manually operated test lever/cap and
observing that water flows through freely and safely to waste;
11) Check that the discharge pipe is plumbed so that it falls continuously
and that no taps, valves or other shut off devices are installed in the
pipe;
12) Check that all thermostats are set at approximately 60-65°C:
13) DIRECT UNITS. Switch on immersion heater(s) and allow unit to heat
up. Check operation of thermostat(s);
14) INDIRECT UNITS. Fill the indirect (primary) circuit following the boiler
instructions. Switch on the boiler, ensure that the programmer is in the
domestic hot water position. Allow unit to heat up and check operation of
indirect thermostat on motorised valve(s);
15) Check the temperature of the hot water at the nearest outlet and record
in the Benchmark Log Book;
16) Demonstrate operation to user, including operation of temperature &
pressure relief valve and what to do if it operates;
17) Give this manual along with the completed Benchmark Log Book to the
user to retain for future reference and make the customer aware that
periodic checks of the equipment are essential for safety.
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