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Version 1, 21 August 2019, 9 of 21
The outlet flow should quickly reduce to be less than 0.4L/min following the isolation. The volume of mixed
water discharged for a period of between 5-35 seconds should be measured and should not exceed the
maximum volume set out in the applicable standard or code of practice for each state.
Restore the hot water supply to the valve and measure and record the outlet temperature after the mixed
water temperature has stabilised. The time taken to stabilise the temperature should not exceed the
maximum time set out in the applicable standard or code of practice for each state.
Ensure that all details of the Commissioning Report are completed, and a copy is kept with the installer and
owner of the premises.
The valve is now commissioned, and it can be used within the technical limits of operation.
NOTE: In some installations, certain types of tapware devices such as flick mixers and solenoid valves are used.
The water pressure may be seen to spike outside that recommended for the valve, during rapid shut off
conditions with these types of devices. Even if the spike only lasts a split second it is still considered to be
outside the operating conditions and may cause the valve to operate incorrectly. In the event that this does occur,
measures must be taken to control the spike, such as the installation of an inline pressure reducing valve directly
before the valve inlets.
To ensure that the mixing valve operates correctly, it is necessary that the pipe-work is thoroughly flushed with
clean water before the valve is installed. This will remove any physical contaminants from the pipe-work,
ensuring trouble-free operation. During the flushing procedure, care should be taken to prevent water damage
occurring to the surrounding area.
t is a requirement of AS3500.4.2 that “Each thermostatic mixing valve shall have an isolating stop tap/valve,
line strainer and non-
return valve fitted to the hot and cold water supply lines”. The inlet fittings supplied with
each TMV will ensure this requirement is met. If the CliniMix
®
Progressive Thermostatic Mixing Valve is to be
installed without the supplied inlet control valves then it will be necessary to install a separate isolating valve,
non-return valve and strainer to both inlets to the valve.
Strainers must be fitted to prevent any particulate contamination from entering the valve. These strainers
should be 60 mesh stainless steel (0.250mm). Isolating valves are required so that the water supply to the
valve can be isolated when servicing is required. Non-return devices must also be fitted to both the hot and
cold inlets to prevent cross-contamination.
Ensure that the test plugs in the top of the inlet fittings are tight.
The valve should be installed so it can be easily accessed for maintenance or servicing.
During installation or servicing, heat must not be applied near the mixing valve or inlet fittings, as this will
damage the valve and inlet fittings internals. Failure to comply with this requirement will damage the valve and
fittings. It will put the user at risk and it will void the warranty of the valve.
Note: The
CliniMix
®
Thermostatic Progressive Mixing Valve is intended mainly for use in applications with set
temperatures below 45° Celsius. When installed at higher set temperature, the performance may be less than
specified in AS4032.4. In such situations consideration should be given to the question of whether an alternative
device, i.e. a tempering valve approved to AS4032.2 would provide a greater margin for safety in reducing
scalding accidents.
