23
4.2.
Adjust the temperature of the mixed water in accordance with the instructions
in this manual and the requirement of the application and then carry out the
following sequence:
(a)
record the temperature, and pressures if possible, of the hot and cold water
supplies.
(b)
record the temperature and flow rate of the mixed water at the largest draw-
off flow rate.
(c)
record the temperature and flow rate 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
temperature.
Note!
The final mixed water temperature should not exceed the values shown
in Table 1 below. Any higher temperatures should only occur briefly.
(f)
record the date, equipment, thermometer etc. used for the measurements.
Guide to Maximum Continuous Temperatures During Site Tests
Table 1
Bidet
Shower
Washbasin
Application
Mixed Water Temperature °C
40
43
43
46
48
Bath (44°C fill)
Bath (46°C fill)
(a)
The designation of the thermostatic 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.
4.1.
Do the following checks:
4. Additional checks for Type 3 valves in healthcare installations
