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GB
39
Electric connections
Before performing electric connections and/or
routine or special maintenance, make sure power
is disconnected from the HP and CRONO-TH. These
operations must be performed by qualified person-
nel. The connection must be performed by means of:
the connector located inside the bottom of the
CRONO-TH. It can be accessed by removing the cover
(using a screwdriver or similar tool) as shown in fig. 1.
Wiring must pass through the central hole at the
base of the CRONO-TH (fixed to the wall) and be
connected to the PCB TERMINAL BLOCK.
If installed on a metal panel, it must be earthed.
Make sure that the voltage of the electric power sup-
ply complies with that required by CRONO-TH. After
having removed the front of CRONO-TH, 5 terminals
(3+2) can be accessed at the bottom. The humidity
sensor must be connected to CRONO-TH as indicated
in the following figures and inserted in the front in
the specific groove.
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