Vaillant ecoMAX pro 18E Instructions For Use Installation And Servicing

Also see for ecoMAX pro 18 E: Installation instructions Installation instructions Instructions for use installation and servicing Instructions for use installation and servicing Instructions for use installation and servicing

Vaillant ecoMAX pro 18E Instructions For Use Installation And Servicing Manual pdf 20 page image

Instructions for Use, Installation and Servicing ecoMAX pro2012 CommissioningPlease ensure the “Benchmark” service record iscompleted and left with the user.Note!During commissioning the overheat thermostatmay trip before air is completely removed fromthe system. If this occurs the boiler can be resetby pushing the manual reset button on theoverheat thermostat (see fig 12.1).12.1 Preliminaries - All SystemsA competent person should carry out commissioning, inaccordance with the current issue of BS 6798.Make sure that the system has been thoroughly flushedout with cold water.Refill the system with water, making sure that all the airis properly vented from the system and pump, fig 12.1shows vent point.Before operating the boiler check that all externalcontrols are calling for heat.12.2 Sealed SystemsFill the system until the pressure gauge registers therecommended pressure. Clear any air locks and checkfor leaks.Check the operation of the safety valve, preferably byallowing the water pressure to rise until the valve lifts.This should be within ± 0.14 bar, of the preset pressure.Where this is not possible a manual check should becarried out.Release the cold water to the initial design pressure.12.3 Gas supplyIsolate the boiler from the mains electrical supply.The complete gas installation including the gas metermust be isolated, tested for soundness and purged inaccordance with BS 6891, in IE the current edition ofIS 813.The gas supply to the boiler can be purged byslackening the gas service union connection beneaththe boiler. Ensure that there is adequate ventilation,extinguish all naked flames and do not smoke whilstpurging.After purging, the gas service union connection mustbe re tightened and tested for soundness. (The boileritself does not require purging as this will be done by theautomatic burner sequence control).The gas valve is factory set for natural gas (G20) andshould need no adjustment. (LPG G31 ecoMax pro 28Eonly) should be adjusted as described Section 13 Naturalgas to LPG conversion. It should be checked that thesupply pressure is 20mb when the boiler is firing at fullrate. This can be achieved by checking the inlet pressureat the pressure test point on the gas valve shown in fig12.2.Caution!Before operating the boiler check the databadge and ensure that the correct gas typeappliance has been installed.PRESSURE TESTPOINTELECTRICALPLUGGAS CONTROLVALVETHROTTLEOFFSETADJUSTMENTFig 12.2 12701VENT POINTFLOWPIPEOVERHEATTHERMOSTATFLOWTHERMISTORRETURNTHERMISTORFig 12.112700