Electrical Connections; Wiring Diagram - SIT 845 SIGMA Installationsanleitung

GB
Connection to the pressure regulator (combustion chamber compensation)
Connecting the pressure regulator to the combustion chamber is recommended when this is pressurized.
Use the special connection port F ( 7mm).
F

ELECTRICAL CONNECTIONS

General precautions
All electrical connections must be made in accordance with current electrical standards. Check that the voltage and
frequency of the coils, given on the valve, are correct. Disconnect the power supply before starting installation.
Check that all connections, in particular the earth, are made properly.
To make this effective you have to use fast-on contact on the body, or a female contact of the connector with correct
characteristic (see EN 60730).
When you use connector, ensure that the fastening screws are tight.
Automatic valves are powered with a male contact Molex type, suitable for female Molex series 3001.
Electrical modulator is powered with a male fast-on connector 2.8 x 0.8 mm.
The 24 Vac versions must be powered by means of an insulating transformer (with very low safety voltage in
accordance with EN 60742). To connect, use AMP 1.1 x 1.1.
For the 24 V RAC version a rectifier circuit has to be used.
IMPORTANT: Warranty claims are not accepted if the control is not powered with the specified voltage.
Make the connections as specified in the technical instructions for the flame failure device used and/or in the specific
standards for the appliance. The electrical safety cut-off devices (for example, the flame failure device, thermostat
etc.) must cut off the power supply to both solenoid valves simultaneously.

WIRING DIAGRAM

EV2 EV1
10