Carel humiFog direct, User Manual

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15
ENG
"humiFog direct" +0300073EN rel. 1.0 - 31.03.2017
3.4 Blower unit electrical connection
The blower units must be electrically connected to the cabinet so that
they are activated only when there is a humidification request
Before electrically connecting the blower units to the cabinet, make sure
that the cable glands supplied with the cabinet and the blower units are
available. All connections to be made by the user (cabinet power supply,
blower unit power supply, probe connections, etc.) must be performed
by running the cables through the cable glands, and in accordance with
local safety standards.
Also check that the cable is the right size for the distance and voltages
used. Carel recommends an AWG14 or AWG12 cable, as shown in the
technical data at the end of the manual.
To connect power to the blower units, connect three suitably-sized wires
(line + n earth) from the terminals on the cabinet (shown in the
figure) to the terminals on the blower (shown in the figure). To power
a second and subsequent blowers, start from the free terminals on of
the previous blower and connect to the terminals on the next blower, as
shown in the figure.
Fig. 3.i
Important:
remember to run the wires through the cable glands (marked
in the figure).
Important: check the maximum number of blower units that can be
connected to each cabinet in the tables in Appendix 12 at the end of
the manual.
Important: when connecting the line (L) and neutral (N) from the cabinet
to the blower units, never reverse L and N. Reversing or crossing over the
wiring may cause short-circuits.
After having completed the wiring, close the side plastic covers again and
fix them using the screws. The system is now ready to operate.