4.0 COMMISSIONING
4.1 PLUMBING
WARNING: Water that is left standing in a stainless steel water cylinder for long
periods without draw-off will become de-oxygenated and potentially corrode
the vessel material. If the installation is to be left unused following installation
and commissioning, the water cylinder must be drained or regularly ushed
(once a week) through with fresh mains water.
Check that all installation and discharge pipe requirements have been 1.
met.
Check that all water connections are tight.2.
Open a hot water tap, turn on mains water supply to the Multipoint SS.3.
Allow Multipoint SS to ll and leave hot tap running for a short while to 4.
purge any air and ush out the pipework. Close the hot tap and check
the system for leaks.
Manually test the operation of the Temperature/Pressure Relief Valve and 5.
the Pressure (expansion) Relief Valve. Ensure water ows freely from the
valves and through the discharge pipes.
4.2 ELECTRICAL
PRELIMINARY CHECKS
Ensure all power supplies are switched off.
Check all electrical connections are tight.
Check all earth bonding links are connected, tight and un-damaged.
Check earth continuity, short circuits, polarity and resistance to earth.
Do not switch on the electrical supply until the Multipoint SS has been 1.
lled with water and checked for leaks.
Check that all electrical requirements have been met.2.
Check that all electrical connections are tight.3.
Switch on the electrical supply. The indicator light will illuminate during 4.
heating. When the set temperature is reached the indicator light will go
out.
The set temperature can be adjusted by rotating the control knob. This 5.
can be set to give temperatures in the range 10°C to 70°C. In hard water
areas it is advised that the maximum temperature is restricted to prevent
build up of scale.
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