Installation, Operation and Maintenance Manual
9
3. ELECTRICALINSTALLATION
For the connections to the control box see the wiring diagram shipped inside the enclosure.
All electrical work must be done by a qualified electrician according to the national and
local codes that apply.
Do not attempt to wire any electrical components while energized. Electrocution
and/or damage to the components may occur.
Connect power supply to the main switch.
When the control board is not factory pre-wired to the Afterfilter make the other connections
to the terminals as per table on page 13.
3.1. Main switch IP65
The incoming power is connected to the terminals on the main switch inside the enclosure. On standard
power boxes the main switch will be mounted on the door. The enclosure cannot be opened without
first turning off the power to the box (main switch in position ‘0’).
A neutral terminal is provided for termination of a neutral conductor. The neutral connection is not
however required for operation of the controller.
3.2. Motor connection
For pre-wired units the motor connections will be made directly to the contactors of the fan according
the wiring diagram delivered inside the TCB enclosure.
For controllers shipped loose connections should be made to the DIN rail terminals according to the
wiring diagrams delivered inside the TCB.
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