Commissioning
After installation, the valve must be tested and commissioned in
accordance with the instructions given below, taking into account
current applicable standards.
1) Ensure that the system is clean and free from any dirt or debris
before commissioning the thermostatic mixer.
2) It is recommended that the temperature is set using a suitable
calibrated
digital
thermometer.
The
valve
must
be
commissioned by measuring the temperature of the mixed
water emerging at the point of use.
3) The maximum outlet temperature from the valve must be set
taking account of the fluctuations due to simultaneous use.
It is essential for these conditions to be stabilised before
commissioning.
4) Adjust the temperature using the adjusting knob on the valve.
For safety reasons, it is advisable to limit the maximum mixed
water temperature to 120°F in domestic hot water systems.
Setting the temperature
The temperature is set to the required value by means of the
adjusting knob with the graduated scale on the top of the valve.
Preset locking
Position the handle to the number required. Unscrew the head
screw, pull off the handle and reposition it so that the handle fits
into the internal slot of the knob. Tighten the head screw.
Maintenance
In service tests should be carried out regularly to monitor the
mixer performance, as deterioration of performance could
indicate that the valve and/or the system require maintenance. If,
during these tests, the temperature of the mixed water has
changed significantly in comparison with the previous test, the
details given in the installation and commissioning sections
should be checked and maintenance carried out.
The following aspects should be checked regularly to ensure that
the optimum performance levels of the valve are maintained.
Every 12 months at least, or more often if necessary.
1) Check and clean the system filters.
2) Verify that any check valves positioned upstream of the Caleffi
valve are operating correctly, without problems caused by
impurities.
3) The Caleffi valve should not be dismantled. Limescale can be
removed from internal components by immersion in a suitable
de-scaling fluid.
4) When the components which can be maintained have been
checked, commissioning should be carried out again.
Min
1
2
3
4
5
6
7
Max
81
90
100
111
120
127
136
145
152
Pos.
27
32
38
44
49
53
58
63
67
MIN
MAX
7
1
2
3
