Akw AKW23116 Pemasangan, Servis & Petunjuk Pengguna - Halaman 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.