14
OPM-160/A
To wire the automatic transfer switch into the existing
wiring, first determine which circuits will be on the
emergency load circuit. If the entire load is to be transferred,
the transfer switch can be wired in directly after the watt-
hour meter and the service entrance, providing the service
entrance ampere rating is within the transfer switch’s rated
capability.
If only specific circuits are to be powered under emergency
power failure conditions, an additional distribution panel
designated “emergency distribution panel” must be
installed. All selected emergency circuits are removed from
main distribution panels and installed in the emergency
distribution panel. The A.T.S. is then installed between
the main panel and the emergency distribution panel.
Suggested circuits: freezer, refrigerator, furnace, emergency
lights, sump pump, emergency outlet circuits, etc. Total
running load must not exceed generator rating.
WARNING
A service disconnect must be installed in front of the
ATS panel as the ATS is not service entrance rated. This
will allow you to test the generator under load. Should
you ever have to work on the switch, you will be able
to disconnect the power and work on the switch cold
without having the power company pull your meter.
To wire the automatic transfer switch into the existing
wiring, first determine which circuits will be on the
emergency load circuit. If the entire load is to be transferred,
the transfer switch can be wired in directly after the watt-
hour meter and the service entrance, providing the service
entrance ampere rating is within the transfer switch’s rated
capability.
If only specific circuits are to be powered under emergency
power failure conditions, an additional distribution panel
designated “emergency distribution panel” must be
installed. All selected emergency circuits are removed from
main distribution panels and reinstalled in the emergency
distribution panel. Suggested circuits: freezer, refrigerator,
furnace, emergency lights, sump pump, emergency outlet
circuits, etc. Total running load must not exceed generator
rating.
