Ideal Boilers Mexico Super RS485 Installation And Servicing

21Mexico Super RS485 - RS4125 - Installation & ServicingINSTALLATION28 INITIAL LIGHTINGLEGENDA. Gas control valve.B. Burner pressure test point.C. Main burner pressure adjuster.D. Inlet pressure test point.TO LIGHT THE BOILER1. Check that all the drain cocks are closed and any valves inthe flow and return are open.2. Check that the gas service cock (E) is OPEN and the boilermains on/off switch is OFF.3. Slacken the screw in the burner pressure test point (B)and connect a gas pressure gauge via a flexible tube.4. Switch the electricity supply ON and check that all externalcontrols are calling for heat.5. Set the boiler thermostat knob (G) to position 6. The pilotsolenoid valve should open and the intermittent sparkcommence, continuing until the pilot is established. Themain burner will then cross-light smoothly. If this sequencedoes not occur, refer to the Fault Finding section.6. Test for gas soundness around ALL boiler gascomponents using leak detection fluid.7. Operate the boiler for 10 minutes to stabilise the burnertemperature.8. The boiler is preset at the factory to its nominal rating.Refer to Table 2 (page 2). If adjustment is necessaryremove the sealing cap and turn the adjusting screwclockwise to increase/anticlockwise to decrease thepressure until the required burner pressure is achieved.Refit the sealing cap.9. Set the boiler mains on/off switch to OFF.10. Remove the pressure gauge and tube. Retighten thesealing screw in the pressure test point.11. Turn ON and check for gas soundness at the pressuretest point.12. Refit the lower front panel and secure with the 2 fixingscrews.E. Gas service cock.F. Sightglass.G. Boiler thermostat knob.H. Main burner 'On' neon.J. Overheat thermostat reset button (optional).INSTALLATION