User Manual

AA-2119053-1© Inter IKEA Systems B.V. 2018
Type 2 Approved Valves (UK Installations) – Installation,
Commissioning and in service test requirements
This information is supplementary to and must be read in
conjunction with the assembly instructions, technical product
information and clean and care instructions supplied with your
thermostatic mixing valve.
The installation must comply with the requirements of the Water
Supply (Water Fittings) Regulations 1999.
The thermostatic mixing valve shall be installed in such a position
that maintenance, commissioning and testing can be undertaken.
The tting of isolation valves is required as close as practicable to
the water supply inlets of the thermostatic mixing valve.
The tting of strainers (supplied) is required into the water supply
inlets of the thermostatic mixing valve (as shown in the assembly
instructions).
When commissioning the thermostatic mixing
valve check the following:
1. The designation of the thermostatic mixing valve matches the
application.
2. The supply pressures are within the valves operating range.
3. The supply temperatures are within the valves operating range.
4. Isolating valves are provided.
If all these conditions are met, proceed to set the temperature as
stipulated in the installation instructions.
It is a requirement that Type 2 approved valves shall be veried
against the original set temperature results once a year. When
commissioning/testing is due the following performance checks
shall be carried out.
1. Measure and record the mixed water temperature at the outlet.
2. Isolate the cold water supply to the TMV, wait for ve seconds, if
water is still owing check that the temperature is below 46°C.
If there is no signicant change to the set outlet temperature
(±2°C or less change from the original settings) and the fail-safe
shut off is functioning, then the valve is working correctly and no
further service work is required.
Note, if there is residual ow during the commissioning or
annual verication (cold water supply isolation test), then this is
acceptable providing the temperature of the water seeping from the
valve is no more than 2°C above the designated maximum mixed
water outlet temperature setting of the valve.
Temperature readings should be taken at the normal ow rate after
allowing for the system to stabilise.
The sensing part of the thermometer probe must be fully
submerged in the water that is to be tested.
Any TMV that has been adjusted or serviced must be re-
commissioned and re-tested in accordance with the manufacturers'
instructions.