Akw AKW23116 Istruzioni per l'installazione, la manutenzione e l'uso - Pagina 8

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Commissioning
Method for Commissioning Thermostatic Mixing Valves
Mixed Water Temperature (Table 2)
Application
Mixed Temperature °C
Abbreviated Designation
Wash Basin
-HP-W, -LP-W
41 MAX
Purpose
Since the installed supply conditions are likely to be different from those applied in
the laboratory tests it is appropriate, at commissioning, to carry out some simple
checks and tests on each mixing valve to provide a performance reference point for
future in-service tests.
Procedure
Check that:
a) the designation of the T301 mixing valve matches the intended application.
b) the supply pressures are within the range of operating pressures for the
designation of the valve.
c) the supply temperatures are within the range permitted for the valve and by
guidance information on the prevention of legionella etc.
To adjust the temperature of the mixed water see page 9 and then carry out the
following sequence:
a) record the temperature of the hot and cold water supplies (see page 14).
b) record the temperature of the mixed water at the largest draw-off flow rate.
c) record the temperature of the mixed water at a smaller draw-off flow rate.
d) isolate the cold water supply to the mixing valve and monitor the mixed water
temperature.
e) record the maximum temperature achieved as a result of (d) and the final
stabilised temperature.
f) record the equipment, thermometer etc. used for these measurements.
NOTE: The final stabilised mixed water temperature during installation should
not exceed the values in Table 3.
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