4
ii)
National Association of Plumbing, Heating and Mechanical Services
Contractors (NAPH & MSC), England and Wales.
iii)
Scottish and Northern Ireland Plumbing Employers’ Federation (SNIPEF),
Scotland and Northern Ireland.
6.
Anyone who may have difficulty understanding or operating the controls of any
appliance should be attended whilst operating. Particular consideration should
be given to the young, the elderly, the infirm, or anyone inexperienced in the
correct operation of the controls.
The use of the word “failsafe” to describe the function of a thermostatic mixing valve
is both incorrect and misleading. In keeping with every other mechanism it cannot
be considered as being functionally infallible.
Provided that the thermostatic mixing valve is installed, commissioned, operated
within the specification limits and maintained according to this Manual, the risk of
malfunction, if not eliminated, is considerably reduced.
Malfunction of thermostatic mixing valves is almost always progressive in nature
and will be detected by the use of proper temperature checking and maintenance
routines.
Certain types of system can result in the thermostatic mixing valve having excessive
‘dead-legs’ of pipework. Others allow an auxiliary cold water supply to be added
to the mixed water from the mixing valve. Such systems can disguise the onset of
thermostatic mixing valve malfunction.
Ultimately, the user or attendant must exercise due diligence to make sure that the
delivery of warm water is at a stable, safe temperature. This is particularly important
in such healthcare procedures as supervised bathing of patients unable to respond
immediately to unsafe temperatures.
Safetherm Options
The following table indicates temperature control options available for the
Safetherm.
Installation
Temperature Adjustment
Description
Panel
Adjustable Temperature Control
Safetherm
Basin
Adjustable Temperature Control
Summary of Contents for Safetherm
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