Ideal Boilers Istor HE260 Installation And Servicing Manual

Also see for istor HE260: User guide

Ideal Boilers Istor HE260 Installation And Servicing Manual Manual pdf 34 page image

34 istor system store - Installation and ServicingINSTALLATIONist7907Tube43 INITIAL LIGHTINGLEGENDA. Air vent.B. Inlet pressure testpoint.C. CH return isolatingvalve.D. Mains water inletisolating valve.E. Gas service cock.F. DHW outlet.G. CH flow isolating valve.H. Pressure gauge.J. Balance cold outlet.L. Display.M. Reset button.N. LED.O. Boiler On/Off switch.P. CH thermostat knob.1. Check that the system has been filled and that theboiler is not airlocked. Ensure the automatic air ventcap (A) is open.2. Refit the boiler sealing panel. Refer to Frame 46.3. Check that all the drain cocks are closed and thatthe CH and DHW isolating valves (C, D and G) areOPEN.4. Check that the electrical supply is OFF.5. Check that the boiler ON/OFF switch (O) is off.6. Check that the gas service cock (E) is OPEN.7. Slacken the screw in the inlet pressure test point (B)and connect a gas pressure gauge via a flexibletube.8. Switch the electricity supply ON and check allexternal controls and the programmer are calling forheat. For setting the programmer refer to usersinstructions.DOMESTIC HOT WATER9. Set the boiler thermostat knob to maximum and setthe boiler ON - OFF switch (O) to I. The boiler controlshould now go through its ignition sequence untilthe burner is established.10. If the boiler does not light after 3 attempts the faultcode will be displayed, Press the reset button(M) and the boiler will repeat its ignition sequence.11. On initial lighting the boiler will fire in DHW modeand continue to run with the display (L) showingstatus until the DHW tank is satisfied with astorage temp of 70 oCThe displayThe user control has one LED and one display to inform theuser about the status. The display will show the status of theboiler. The LED will show the status of the flame. If no flameis detected the LED is blinking. When the flame is detectedthe LED will be lit permanently.Below is a list with function of the display in normal operation.Standby, no demand for heat present.Boiler is active for central heating.Boiler is active for domestic hot water.Boiler is in lockout for a specific error, display will beblinking alternating with a number or letter to show whatkind of error is detected.Boiler is in lockout for a specific error, display will beblinking alternating with a number or letter to show whatkind of error is detected.INSTALLATION