TEL AFA4000/E, Installation And Operating Manual

Page: 8 / 210

AFA4000/E VAV Airflow Controller / p.8
2.5 Electrical safety
Lethal voltages are present at certain points within the equipment.
When the equipment is connected to mains power, removing the equipment's
covers is likely to expose live parts.
Even when the power switch is off, high voltage can still be present. Capacitors
within the equipment may still be charged even if the equipment has been
disconnected from all live voltage sources.
Connect the Airflow Monitor and associated equipment correctly to a suitable electrical supply.
The supply must have a correctly installed protective conductor (earth or ground), which must
be installed and checked by a qualified electrician before initial power up.
Any interruption of the protective conductor inside or outside the Airflow Monitor
and Auto-Sash Controller Systems, or disconnection of the protective conductor
terminal is likely to make the equipment dangerous.
Never interrupt the protective conductor.
If the mains power cord needs to be replaced, ensure that the replacement cord is
appropriately rated and approved for the intended use.
To prevent potential personal injury and damage to the equipment, switch OFF all
components in the system and disconnect them from the mains power supply
before altering or making any new electrical connections.
When working with the Airflow Monitor System and/or the Auto Sash Controller System:
•
Only connect the equipment to a correctly installed mains power outlet that has a
protective conductor connection.
•
Do not operate equipment with any covers or internal parts removed.
•
Disconnect the equipment from live voltage sources before adjustments, replacements,
maintenance or repairs are carried out. If the equipment must be operated during
adjustment, maintena
nce or repair, only a supplier’s Service Engineer is to carry out the
procedure.