Carrier 42CT Series Manual page 14

14
5.6. Electrical connections
All field wiring and components must be installed by a licensed electrician and
must comply with relevant local and national regulations.
Check that the power supply corresponds to the nominal power supply stated
on the unit nameplate.
To avoid inter-disturbing within motors, do not connect two or more units into
one control switch.
For the unit power supply, it is recommended to use cables with a minimum size
of 1.5 mm .
Disconnect the power supply to all circuits prior to handling any electrical
components.
In order to make the electrical connections you must remove the terminal box
cover to access the terminal block.
Make earth connection prior to any other electrical connections.
The unit-wiring diagram shows all unit and field wiring. Before proceeding with
the unit connection to the mains supply locate live L and neutral N, then make
connections as shown in the wiring diagram.
Terminal box can be mounted on either sides.
Ensure that the mains supply connection is made through a switch that
disconnects all poles, with contact gap of a least 3 mm and a suitable safety
fuse (F).
All electrical connections should be checked for tightness before startup.
After making all electrical connections do not forget to close the terminal box
cover.