Innova Srl
Page 13
N420220A_ManualeHRC_Rev07.EN
3
ELECTRICAL CONNECTIONS
3.1.1
GENERALITY
-Before starting any operation to make the electrical connection make sure that the unit is not electrically powered
- Make the necessary electrical connections by consulting only the wiring diagram attached to this manual.
-Install a suitable breaking device and differential protection for the exclusive service of the unit.
- Check that the electrical components chosen for the installation (main switch, circuit breakers, cable section and terminals) are suitable for
electrical power of the installed unit and that take into account the starting currents of the compressor as well as the maximum reachable load. THE
relative data are indicated on the attached wiring diagram and on the unit identification plate
-It is forbidden to enter the unit with electric cables unless specified in this booklet.
-Use cables and electrical conductors with adequate sections and in compliance with the regulations in force in the various countries.
- Absolutely avoid running electrical cables in direct contact with pipes or components inside the unit
- After the first moments of operation, check the tightening of the screws of the power supply terminals
3.1.2
POWER SUPPLY AND CONTROL UNIT CONNECTION - S VERSION
Connect the power supply to the mains power supply by
connecting it to the AC IN side.
-Blue wire (N)
-Brown wire (L)
Connect the two wires of the 12Vdc power supply on the
DC OUT side from the power supply to the control unit.
Respect the polarity
-Red wire (+)
-Black wire (-)
The control unit can be positioned on box 503 or on the
wall and has a fixing screw underneath for access to the
internal parts.
Power supply and power supply connection