AFA4000/E VAV Airflow Controller / p.9
• Ensure equipment that is not electrically safe is made inoperative. Secure the equipment
against unauthorised or unintentional operation. Examples of electrically unsafe equipment
conditions are as follows:
• Appears damaged
• Has undergone transport stresses
• Has been stored incorrectly
2.6 Electrical protection
Observe the following electrical protection precautions:
Class I rating for external circuits.
Only connect equipment that meets the requirements of IEC
61010-1, IEC 60950 or equivalent standards.
The equipment can withstand transient over-voltages typically
present on the mains supply. The normal level of transient over-
voltages is impulse withstand (overvoltage) Category II of IEC
60364-4-443.
Normally only non-conductive pollution occurs. Occasionally,
however, temporary conductivity caused by condensation must
be expected.
External circuits which are connected to the Auto Sash controller,
except mains connection, shall be insulated by double or
reinforced insulation from the mains.
To Next Page
Loading...