CLAS HE R - Installation & Servicing Manual

installation Condensate

installation Condensate Discharge The condensate discharge hose from the boiler must have a continuous fall of 2.5 o and must be inserted by at least 50mm into a suitable acid resistant pipe - e.g. plastic waste or overflow pipe. The condensate discharge pipe must have a minimum diameter of 22mm, must have a continuous fall and preferably be installed and terminated to prevent freezing. The discharge pipe must be terminated in a suitable position: i) Connecting into an internal soil stack (at least 450mm above the invert of the stack). A trap giving a water seal of at least 75mm must be incorporated into the pipe run, there also must be an air break upstream of the trap. ii) Connecting into the waste system of the building such as a washing maching or sink trap. The connection must be upstream of the washing machine/sink. If the connection is downstream of the waste trap then an additional trap giving a minimum water seal of 75mm and an air break must be incorporated in the pipe run, as above. iii) Terminating into a gully, below the grid level but above the water level iv) Into a soakaway Note: If any condensate pipework is to be installed externally then it should be kept to a minimum and be insulated with a waterproof insulation and have a continuous fall. The total length of external pipe used should not exceed 3 metres. Some examples of the type of condensate terminations can be found below. 1. Internal termination of codensate drainage pipe to internal stack. 2. External terminaton of condensate drainage pipe via internal discharge branch (e.g. sink waste) and condensate siphon. 3. External termination of condensate drainage pipe via internal discharge branch (e.g. sink waste - proprietary fitting). trap trap 4. External termination of condensate drainage pipe via condensate siphon 16

installation Installing the Boiler Please check that you are familiar with the installation requirement before commencing work (pages 8 - 16). The installation accessories described in the following list are included in the boiler packaging: - Hanging bracket - A paper template (showing the dimensions of the boiler with 5 mm side clearances) - Gas isolation valve (compression) - Washers - Installation, Servicing and User manual - Flue gasket - Fixing screws Filling the system/condensate discharge Fill the central heating and bleed air from the system as described in the Commissioning Instructions. The system should be carefully checked for leaks, as frequent refilling could cause premature system corrosion or unnecessary scaling of the heat exchanger. Pay special attention not to bend the condensate silicone drain pipe is such a way as to interrupt the flow. Please only use drain pipe material compatible with condensate products (refer to BS 6798:2000). The condensate flow can reach 2 litres/hour because of the acidity of the condensate products (Ph close to 2), take care before operation. See page 16 for condensate discharge options. Method of positioning the boiler on the wall The paper template can be used to ensure the correct positioning of kitchen cabinets etc. The paper template has to be fixed to the wall and used to locate the position of the hanging bracket and the centre for the flue hole. Drill and plug the wall and secure the hanging bracket using the screws provided, ensure the hanging bracket is fixed square on the wall. Remove the boiler from its packaging. Place the boiler on the hanging bracket. Note: The appliance must not be fitted on a combustible wall surface. Connecting the boiler to the system - Remove the boiler casing as described on page 19 - Remove the cap and connect the gas isolation valve to the boiler using the washer provided (C) page 18; 17