SIT Eletrosit gas block 0810138

SIT Group 810 ELETTROSIT M U LT I F U N C T I O N A L G A S C O N T R O L PUSH-BUTTON CONTROL ALL ADJUSTMENTS ACCESSIBLE FROM ABOVE THERMOELECTRIC SAFETY DEVICE ON-OFF SOLENOID VALVE PIN 63AN7060/3  ELECTRICAL MULTIFUNCTIONAL CONTROL High-flow multifunctional control complete with: push- button control (off, pilot, on), thermoelectric safety device for protection against improper operation, main burner ignition enabling button, pressure regulator, on-off solenoid valve with gas flow on-off control. On request, a step ignition device can be fitted. 810 ELETTROSIT is suitable for use with gas heating appliances (boilers, hot air generators, etc.). MAIN FEATURES Ignition button (pilot position) . Main burner ignition enabling button (manual or automatic version). Shutdown button . Thermoelectric flame failure device with reset interlock. Near-silent automatic on-off solenoid valve. Pressure regulator. Adjuster for gas flow to the pilot burner. Step ignition device (optional). Inlet and pilot filters. Inlet and outlet pressure test points. Threaded gas inlet and outlet ready for flanged connection.  DESCRIPTION 1 Ignition button (pilot position) 7 Pressure regulator override device 2 Main burner ignition enabling 8 Inlet pressure test point button 9 Outlet pressure test point 3 Shutdown button 10 On-off solenoid valve 4 Pressure regulator setting device 11 Thermocouple connections 5 Pilot gas flow adjusting screw 12 Pilot outlets 6 Step ignition device adjustment 13 Main gas inlet screw 14 Main gas outlet 15 Holes (M5) for fixing flanges 10 14 3 9 2 1 8 7 15 13 4 5 6 11 12 TECHNICAL DATA • Gas connections: Rp 1/2 ISO 7 (Rp 3/4 on request) • Installation position: any position POWER SUPPLY • Gas families: I, II and III Voltage (AC) Consumption (mA) • Maximum gas inlet 230 V 50 Hz 75 pressure: 50 mbar 24 V 50 Hz 650 • Outlet pressure setting range: 3...18 mbar (on request 15...30) • Working temperature range: 0...60 °C • Pressure regulator: Class C • Automatic solenoid valve: Class D Data refer to EN 126  DIMENSIONS 123 84 Rp 3/4 82 , ,, , ,, NO PR , ,, REG. ADJ 126 102 , ,, ADJ , ,, 30 I¡ STEP PILOT ADJ. 28,5 12 Pilot Ø 6 Rp 3/4 2,5 11/32" 87 47 18,5 134 FLOW RATE AS A FUNCTION OF PRESSURE DROP Q Q [m [m3/h, 3 d=0.6] /h d=0.6] Rp 3/4 G 10 Rp G 1/2 8 Rp 1/2 Rp 3/4 6 I Family (d = 0.45) Q = 11.2 m3/h Q = 12.9 m3/h Æp = 5 mbar II Family (d = 0.6) Q = 9.8 m3/h Q = 11.2 m3/h Æp = 5 mbar 4 III Family (d = 1.7) Q = 6.0 kg/h Q = 6.9 m3/h Æp = 5 mbar 2 0 1 2 3 4 5 DpDp[mbar] [mbar]  OPERATION Pilot flame ignition Depress the button and ignite the pilot flame, fig. 1 keeping the button fully depressed for a few seconds (fig.1). In controls with enabling for electrical ignition, the pilot can be ignited automatically by depressing the button . Release the knob and check that the pilot flame stays lit. If it goes out, repeat the ignition operation. Main burner ignition Depress the transverse button (fig.2) (manual versions). The gas passage to the main burner is opened by fig. 2 powering the automatic solenoid valve. The valve with step ignition device reaches the maximum flow after about 10 seconds. Pilot flame ignition Fully depress the knob (fig.1) to keep the main burner closed and the pilot flame lit. Shutdown Fully depress the knob (fig.3). fig. 3 CAUTION: the restart interlock device prevents igni- tion of the appliance until the flame failure device has stopped gas flow. At the end of this period (after clo- sing the magnet unit) it is possible to carry out the re-ignition operation.  INSTALLATION Main gas connection The connection is made using gas pipes with Rp 1/2 ISO 7 (or Rp 3/4) threading. Torque: 25 Nm. If, alternatively, flanges (available on request) are used, first screw the pipes onto the flanges and then the flanges to the control. Recommended torque for the flange fixing screws: 3 Nm. Connection to the pilot burner Pipes with a 4 mm, 6 mm or 1/4 diameter can be used. Use a nut and olive of appropriate dimensions. Tighten to 7 Nm torque. Electrical connections All the electrical connections should be made in compliance with the provisions of the electrical standards in force. Check that the voltage and frequency of the coils, indicated on the control, are correct. Check that all the connections, in particular the earth, are carried out to industry standards. The 24Vac versions must be powered by an isolating transformer (with very low safety voltage). Carry out the connections in accordance with the rules for the appliance. To access the supply and earth terminals, unscrew the screw and remove the cover. To access the electric ignition enabling terminals “W” (where applicable), unscrew the screw “M” and remove the enabling device. The limit thermostat “LS” should be inserted into the ther- moelectric circuit. CAUTION: after making the connections, check gas tightness and electrical insulation. 1 K 2 TA ON-OFF ~ 3 LS W w = Pilot burner electric ignition enabling WIRING PLANS K = Internal enabling for main burner ignition TA = Ambient thermostat LS = Limit thermostat  SETTINGS AND ADJUSTMENTS Measurement of the inlet and outlet pressure The inlet and outlet pressures of the gas can be measured by unscrewing the provided test point sealing screws. Replace screws with 2.5 Nm torque. Gas flow-rate adjustment to the pilot Adjustment screw (PILOT ADJ.). Screw in the screw to reduce the flow, or unscrew it to increase flow. Outlet pressure adjustment Adjustment screw (REG. ADJ.). Remove the protective cap, screw in the adjustment screw (REG. ADJ.) to increase the outlet pressure, or unscrew it to decrease flow. Adjustment of the step ignition minimum flow with…