Ariston Comfort STI 150 indirect Instructions For Installation And Use Manual - Page 20

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Ariston Comfort STI 150 indirect Instructions For Installation And Use Manual
www.tradeplumbing.co.uk Call Sales On 08708034288
www.tradeplumbing.co.uk Call Sales On 08708034288
20
Unvented Controls(s)
Check controls 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.
N
!
OTE
W
HERE THERE IS A POSSIBILITY OF SCALE FORMING
THE THERMOSTAT TO BELOW
,
IT IS RECOMMENDED TO ADJUST
60
O
C