Electrical Connections - York Laser Gebrauchs - Und Wartungsanweisungen

When finishing the connection and pressurization operations of the hydraulic
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system, execute a tightness test at a higher pressure than the standard one, in
order to avoid water leaks during the regular use of the unit.
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MAX. TIGHTENING TORQUE FOR THE CONNECTION OF THE YORK VALVE
KIT IS 20 Nm
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If the control valves are not supplied by YORK, YORK is not responsible for any mal-
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function or wrong electrical connection referred to the valves.

6.6 ELECTRICAL CONNECTIONS

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Before making any electrical connection, verify the compatibility between power supply
and the technical features of the fan coil and/or of the other accessories to be connected
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to the unit. These features are illustrated in the identification plate, located on one side of
the fan coil (Fig. 1).
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In the power supply system to the fan coil, a double-pole switch must be fore-
seen with a minimum distance of 3 mm between contacts in each poles.
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For a correct management and use of the fan coil, the use of an YORK microprocessor
control is suggested. The control has to be chosen according to the requirements of the
installation.
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In standard configurations (for example CBL00-Encl.3/A) it is not possible to
connect more than one motor in parallel to the same speed selector or ther-
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moregulator. For this requirement, a special optional card and the relevant elec-
tric diagram are necessary.
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Each fan coil is provided with:
• screw terminal board for the electrical connections, indicated inside the CBL00 control
box (s. Enclosure 4 - Fig. 1);
• electric wiring diagram, specific for the working of the unit and its accessories, located
in the front inner part of the unit;
• ground protection terminal marked with the symbol
ground protection system cable (yellow/green).
To connect the fan coil unit to the electric system, operate as follows:
1. Insert the wires (factory pre-wired cable) through the slots in the base of the control box
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for the connection of the