Ideal Boilers isar m30100 Installation And Servicing

22INSTALLATIONisar - Installation and Servicing2025CondensatedrainFront view155mmSide viewDiverter valve(shown in theCH position)Forward positionindicates DHWAutomaticair ventCapVentplug2026PumpRotate theshaft to freea. b. c.28 CONDENSATE DRAINRefer also to the British Gas document: 'Guidance Notes forthe Installation of Domestic Gas Condensing Boilers' (1989).The condensate drain (provided in the h/ware pack) must beconnected from the boiler ‘S’ trap to a drainage point,preferably within the building.Ensure that the condensate trap is full of water beforecommissioning the boiler . Refer to Frame 23.The routing of the drain must be made to allow a minimumfall of 1 in 20 away from the boiler, throughout its length.The drainage pipework must be arranged so that obstruction(e.g. through freezing) of external drainage pipe does not giverise to spillage within the dwelling.IMPORTANT.If excessive external pipework cannot be avoided anadditional siphon kit and insulation are recommended toprevent possible freezing.All pipework and fittings in the condensate drain systemmust be made of plastic. No other materials may be used.The drain outlet on the boiler is standard 21.5mm overflowpipe. This size must not be reduced in any part of its length.29 FILLINGCentral Heating1. Remove the boiler front and sealing panels. Refer toFrames 42 & 43.2. Swing the control box down into the servicing position.Refer to Frame 44.3. Ensure that the CH isolating valves are open.4. Fill and vent the system. Check for water soundness.IMPORTANT - when filling:a. Remove the diverter valve actuator (refer toFrame 60) and depress the spindle several timesduring filling. Replace diverter valve actuator.b. The cap on the automatic air vent MUST be looseat all times. Refer to Frame 68.When filling, there may be a slight water leak from the venttherefore electrical connections should be protected.c. Bleed any air from the pump and ensure that it is free torotate.i. Remove the vent plugii. Using a screwdriver, rotate the shaft several timesiii. Replace the vent plug.Note.Some slight water leakage will occur.Note.The domestic hot water flow rate is automaticallyregulated to a maximum of 12 l/min (2.6 gpm).Domestic Hot Water1. Fully open all DHW taps and ensure that water flowsfreely from them.2. Close all taps.INSTALLATION