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Your Stainless Lite unvented cylinder is automatic in normal use, but requires routine
maintenance which is normally carried out at least annually along with the boiler
service. The maintenance must be carried out by a suitably competent tradesperson
who is qualified to work on unvented cylinders. The checks/work needed are listed
in the maintenance part of these Instructions.
The control thermostat of the immersion heaters for direct heating of our cylinders
are set at 60°C. The control thermostat for indirect heat exchanger heat up of our
cylinders are usually set at between 60°C - 65°C. During commissioning the actual
temperature that the cylinder reaches when the thermostat(s) operate should be
tested and adjusted so that it achieves a minimum of 60°C, in order to comply with
the Legionella pasteurisation requirements.
When initially opening the taps, a small surge in flow may be experienced, which
disappears as the pressure in the system stabilises. This is quite normal with these
types of systems and does not indicate a fault.
In some areas the water will initially appear cloudy, but will quickly clear when left
to stand. This is nothing to be concerned about and is due to aeration of the water.
WARNING
- If water is seen flowing through the tundish, this indicates a fault condition
which needs action.
If the discharge is hot and continuous, turn the boiler and/or the immersion heaters
off, but do not turn off the cold water to the appliance until the discharge is cold.
Note:
The discharge may stop by itself as the discharge cools.
If the discharge is cold and intermittent, no immediate action is needed but this
indicates a problem with the expansion vessel.
However, in both cases you must call the registered installer / a suitably qualified,
competent tradesperson, advise them that you have an unvented cylinder and
request a maintenance visit.
DO NOT,
at any time, tamper in any way with the safety valves or overheat thermostats/
wiring.
INSTALLATION
USER INSTRUCTIONS
