User guide

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(e) If the unit has been dropped or the enclosure is damaged.
(f) If the unit exhibits a distinct change in performance. This indicates a need for service.
Replacement Parts - If replacement parts are required, ensure that only replacement parts
recommended by the product manufacturer are used.
Safety Check - Upon completion of any service or repairs to the unit, safety checks should be
performed to ensure that the unit is in proper operating condition.
Pre-installation Checks - It is recommended that the unit be bench-tested prior to installation on the
site.
Safety During Installation or Servicing - Particular care should be taken to isolate the dome in order
to prevent operation while engineering work is being carried out on the VA1.
Adhere to Safety Standards - All normal safety precautions as laid down by British Standards and
the Health and Safety at Work Act should be observed.
WARNING
TO PREVENT DANGER OF FIRE OR SHOCK, DO NOT EXPOSE THE INTERNAL COMPONENTS
OF THIS EQUIPMENT TO RAIN OR MOISTURE.
The “lightning flash with arrowhead” symbol inside an equilateral triangle is used to warn
the user of
this equipment that there are sufficiently high voltages within the enclosure to constitute a risk of
electric shock.
The “exclamation point” symbol inside an equilateral triangle is used to alert the user of this equipment
to important operating and maintenance (servicing) instructions in the literature accompanying the
appliance.