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July 2020 , 11 of 18
5 Year Maintenance Procedure
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Every five years the thermostatic mixer needs to have a full service carried out. This service consists of
the same procedure as the ‘Annual aintenance Procedure’ listed plus the thermostatic mixer cartridge
must be replaced.
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After replacing the thermostatic mixer cartridge, a thermal shut down test is performed, and the
temperature re-set as required. If the valve fails to shut down or fails to maintain its set temperature,
then refer to the troubleshooting section.
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Once the 5 yearly maintenance procedure is complete, the thermostatic mixer should then be
commissioned as per instructions.
10.0
MAINTENANCE
When installed as an AS/NZS 4032.4 application it is a requirement that the commissioning (section 7.0) and
maintenance procedures in (section 10) are carried out before use.
10.1 Adjustment of the mix temperature
1. Close the valve.
2. Remove top cap, screw
and handle, ensure that
the cartridge is closed
3. Remove the upper brass ring (closure
setting ring).
Make sure the control
rod doesn’t rotate.
4. Remove the lower brass ring
(temperature setting ring) and
rotate the brass ring clockwise
to increase temperature or anti-
clockwise to decrease.
5. Reposition the upper ring
in the same position.
6. Test the set temperature. If the
temperature is acceptable, reposition
the handle (section 6.2), the screw
and the top cap otherwise repeat
from step 3 to 6.
C S
UPP R R N
R R N
