Ideal Boilers Classic Combi FF 280 Installation And Servicing

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Classic Combi FF 280 - Installation 29INSTALLATION51 COMMISSIONING AND TESTING52 INITIAL LIGHTINGBoiler modulez Lift the boiler casing up to the boiler assembly and secure with4 captive screws.Controls casing podz Locate the pod on the 2 fixing screws. Push the pod forward toengage in the keyhole slots and tighten the fixing screws.Combi module coverz Lift the cover up to the module and push forward to engage inthe keyhole slots. Secure with the 2 1/2 " pozi screw provided .continuing until the pilot is established. The main burner willthen light at low rate, approximately 6.0mb (2.4 in.w.g.) burnerpressure. If this sequence does not occur refer to the FaultFinding section.8. Check that the pilot flame envelops the ignition / detectionelectrode. If the pilot flame appears incorrect refer to 'PilotBurner Replacement' in the Servicing section.9. Test for gas soundness around ALL boiler gas components,using leak detection fluid. Particularly check gas valve flanges.10. Set the burner on/off switch to OFF.INSTALLATION(a) Electrical Installation1. Checks to ensure electrical safety should be carried out bya competent person.2. ALWAYS carry out preliminary electrical system checks, i.e.earth continuity, polarity, resistance to earth and shortcircuit using a suitable test meter.(b) Gas Installation1. The whole of the gas installation, including the meter,MUST be inspected and tested for soundness and purgedin accordance with the recommendations of BS. 6891.2. Purging air from the gas installation may be expedited byloosening the union on the gas service cock on the boilerand purging until gas is detected.3. Retighten the union and check for gas soundness.WARNING. Whilst effecting the required gas soundness test and purging air from the gas installation open all windows anddoors, extinguish naked lights and DO NOT SMOKE.z The casing mustseat correctlyand compressthe sealing stripto make anairtight joint.Visually checkthe side sealsbut if sideclearances arelimited thencheck that thetop and bottomedges of thecasing arecorrectlylocated.1. Check that the electricity supply is OFF.2. Check that all the drain cocks are closed and the centralheating isolating valves (J and K) and the domestic hot waterisolating valve (M) are OPEN. Check that the diverter valvemanual lever is in the CLOSED position. Refer to Frame 42.3. Check that the gas service cock (F) is OPEN. Also check thatthe CH switch (B) and burner on/off switch (C) are OFF.4. Fit the boiler casing but do not fit the Combi module cover orthe controls casing pod.WARNING. Do NOT operate the boiler with the casingremoved as damage to the control box may result5. Slacken the screw in the burner pressure test point (I) andconnect a gas pressure gauge via a flexible tube.6. Switch the electricity supply ON and check that all externalcontrols are calling for heat: The pump will start.TO LIGHT THE BOILER7. Set the burner on/off switch to ON and the fan (and pump) willstart. After the fan has run for a few seconds the pilot solenoidvalve will open and the intermittent spark commence,LEGENDA SightglassB CH / HW switchC Burner on/off switchD Overheat thermostat reset buttonE CH pressure gaugeF Gas service cock.G Inlet pressure test pointH Main burner pressureadjuster (outer)I Burner pressure test pointJ CH flow isolating valveK CH return isolating valveL DHW outletM DHW inlet isolating valve.N Low rate adjustingscrew (inner)FITTING THE BOILER CASING