York VAC 20A Quick Installation Manual page 21

N O T E
For further information on this subject, always keep the current regulations for the country where the unit
is being installed at hand.
Make sure that the electricity supply line has enough capacity to power the unit. Its length, the cable
diameter and their protection (cover or jacket) should be appropriate for the unit.
Use a multimeter to check that the supply voltage
remains within the accepted limits.
To install the power cable, loosen the closures -1- by
1/4 turn and remove the electrical board panel.
Press the appropriate openings on the edge of the unit
-1- until they are released.
Fit packing glands to fit the cable and pull the cable
through to the inside of the electrical panel through
the grommets in the tray -2-.
Connect the cable to the input connections indicated
and firmly tighten the securing bolts. Also consult the
Wiring Diagrams.
N O T E
The complete wiring diagram for the unit is attached
to the inside of the electrical panel.
The electrical panel is fitted with a phase detector to ensure the electrical connection follows the
sequence of phases R-S-T. Where the connection does not respect this sequence, the electronic control
circuit remains disconnected and the unit will not start.
To correct the phase sequence, change the position of two of the three unit power cables on the input
terminals.
CONTROL LINE
Passing the power and control cables through the
front of the unit.
Press the appropriate openings on the edge of the unit
-1- until they are released.
Fit packing glands to fit the cable and pull the cable
through to the inside of the electrical panel through
the grommets in the tray -2-.
Connect the cable to the terminals indicated and
firmly tighten the securing bolts. Also consult the
wiring diagrams for the unit and
on page 21 .
Instructions for installation and connection of the unit
Wiring diagrams, see
Quick installation guide
1
1
2
1
1
1.5
1
2
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