Ariston ST 100 ProTech Інструкції з монтажу, обслуговування та експлуатації - Сторінка 28

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Unvented Controls(s)

Check controis as per the following:

1) Line strainer - with the water supply turned off remove screen from

strainer and clean of any detritus;

2) Expansion vessel - with the water supply turned off and taps open, check

expansion vessel pressure and top up as necessary;

3) Temperature & pressure relief valve - with the water supply turned on,

check manually by lifting the test lever/turning the test knob (ensure valve

closes after testing);

4) Expansion relief valve - check manually by turning the test knob (ensure

valve closes after testing);

5) Discharge pipes (D1) - from both temperature & pressure relief and

expansion relief valve for obstructions;

6) Tundish & discharge pipe (D2) - open either valve gradually to produce a

full bore discharge into tundish and D2 without any back pressure;

7) Pressure reducing valve - check that the correct outlet pressure Is being

maintained by recording the pressure at an in-line terminal fitting i.e. tap.

Thermostats

Ensure that all thermostats adjusted for the correct temperature setting, this

should be between 60 and 65°C.

After servicing, complete all relevant sections of the Benchmark Checklist

located on page 35 of this manual.

Note!

Where there is a possibility of scale forming, it is recommended the

THERMOSTAT BE SET TO BELOW 60°C AND A SCALE REDUCER BE FITTED ON THE

INCOMING MAINS SUPPLY