Johnson Controls YORK YHMH 20 Notice D'instructions page 34

ELECTRICAL CONNECTIONS
The fan coil leaves the factory fully wired and only requires:
- connecting to the mains electricity supply.
For any work of an electrical nature, see the section
"Wiring diagrams".
Check that:
- The characteristics of the mains electricity supply are-
suitable for the maximum input values indicated in the
table in the section "Technical data", also taking into
consideration any other appliances working in parallel.
- The supply voltage corresponds to the rated value +/-
10%.
The following is compulsory:
- Installation of an omnipolar line disconnecting switch to
CEI-EN standards (with contact separation of at least 3
mm) near the appliance.
- An efficient earth connection.
The manufacturer cannot be held liable for any damage
or injury caused by failure to earth the installation or fail-
ure to comply with the wiring diagrams.
Under no circumstances should gas or water pipes be
used for earthing the appliance.
To access the connections, see the section "Access to
connections".
12
GB
POWER SUPPLY
- Carry out the connections as shown in the figure.
The unit comes with a power cable 1.6 m long.
The unit ON-OFF switch must be in the ON (I) position".
- Upon completion of connections, secure the cables with
cable glands and replace the terminal block covers.