3
SAFETY: WARNINGS
The function of this thermostatic shower control is to deliver water consistently at a
safe temperature. This requires that:
1.
It is installed, commissioned, operated and maintained in accordance with the
recommendations given in this Manual.
2.
Type 3 valves are only used for applications covered by their approved
designations.
3.
Periodic attention is given, as necessary, to maintain the product in good functional
order. Recommended guidelines are given in the
MAINTENANCE
section.
4.
Continued use of this product in conditions outside the specification limits given
in this manual can present potential risk to users.
ADVICE
The use of the word 'failsafe' to describe the function of a thermostatic shower control
is both incorrect and misleading. In keeping with every other mechanism, it cannot
be considered as being functionally infallible.
Provided that the thermostatic shower control 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 shower controls are 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 shower control having excessive
'dead-legs' of pipework. Others allow an auxiliary cold water supply to be added to the
mixed water from the shower control. Such systems can disguise the onset of
thermostatic shower control malfunction.
Ultimately, the user or attendant must exercisedue diligence to ensure 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.