MS10-11C Issue 4d
20
Plumbing Maintenance
It is essential that your stove is well maintained and annually serviced by a qualified
professional to ensure it's continued efficient operation. Failure to maintain and
service your appliance as laid out in these instructions will result in the voiding of
your products warranty. Please see section “Maintenance” for information on
annual servicing of the stove and its internal components.
Plumbing Servicing
It is critical that all aspects of the SCWS (Safety Cold Water System) are annualy checked
to ensure correct operation. The main safety valve in the SCWS is the Watts STS20 valve,
which will open to allow mains cold water to enter the boilers quench coil. It is necessary to
clean the valve to remove impurities and deposits before initial firing and during servicing
of the installation. To activate the manual discharge and therefore the cleaning, press and
hold the red button on the valve, this will allow water to flow through the valve removing
the deposits. The manual test of this valve MUST be performed at the annual service.
Test Button
