Ametek AN-3100D Installation And Configuration Manual page 12

the unit may be impaired.
Before start-up, it is important to ensure that:
1. The unit can be switched off by a switch, or a circuit breaker, clearly
marked as the disconnecting device for the unit. The minimum rating
of the disconnecting device is:
•
5 Amps for 120 Vac or 230 Vac power
•
10 Amps for 24 or 48 Vdc power
2. The disconnecting device is located in close proximity to the unit
and must be marked as the disconnecting device for the unit.
3. The protective earth terminal is properly connected to protective
earth.
4. The line has been connected correctly and protection is provided
against electric shock.
5. Proper ventilation is provided by at least 6 inches (15.25 cm) above
and below the unit
2 AN-3100D ANNUNCIATOR INSTALLATION AND CONFIGURATION MANUAL