Ideal Boilers Optia HE 9 Installation And Servicing Instructions

Optia HE - Installation & Servicing 9GENERALBoiler Size HE 9 12 15 18Boiler kW 9.0 12 15 18Output Btu/h x 1000 30.7 40.9 50.2 60.4Water Flow l/min 11.7 15.6 19.5 23.4Rate gal/h 155 206 258 309Pressure mbar 54.0 93.5 98.4 142.5Loss in wg 21.6 37.4 39.3 57Table 5 - Water flow rate and pressure lossTERMINALThe terminal assembly can be adapted to accommodate variouswall thicknesses. Refer to Frame 10.AIR SUPPLYDetailed recommendations for air supply are given in BS.5440:2.In IE refer to I.S. 813:2002.The following notes are for general guidance:1. It is NOT necessary to have a purpose provided air vent in theroom or internal space in which the boiler is installed.2. If the boiler is to be installed in a cupboard or compartment,permanent air vents are required (for cooling purposes) inthe cupboard/compartment, at both high and low levels. Theair vents must either communicate with room/internal space,or be direct to outside air. The minimum effective areas of thepermanent air vents, required in the cupboard/compartment,are specified in Table 4 and are related to maximum ratedheat input.The boiler is fitted with a special drain plug, which is provided, todrain the BOILER ONLY, in the event of the system drain plugbeing unable to do so. The hydraulic resistance of the boilers, atMAXIMUM OUTPUT with an 11 OC (20 OF) temperature differential,are shown in Table 5.Maximum boiler operating temperature should be 82 o C (180o F).Table 4 - High and low vent areasBoiler Air from room/internal Air direct fromspace, cm (in 2 ) outside, cm (in 2)HE9 102 (16) 51 (8)HE12 135 (21) 68 (11)HE15 170 (26) 83 (13)HE18 198 (31) 102 (16)3. Both air vents MUST communicate with the same room orinternal space or MUST be on the same wall to outside air.4. In siting the air vents care must be taken to avoid the freezingof pipework.Water circulation system.WATER CIRCULATION SYSTEMThe boiler must NOT be used for direct hot water supply. For thetypes of system and correct piping procedure refer to 'Introduction'and Frame 1.The central heating system should be in accordance with BS.6798and, in addition, for Smallbore and Microbore systems, BS. 5449.The domestic hot water system, if applicable, should be inaccordance with the relevant recommendations of BS. 5546. Coppertubing to BS. 2871:1 is recommended for water carrying pipework.The hot water storage cylinder MUST be of the indirect type andshould preferably be manufactured of copper.Single feed, indirect cylinders are not recommended and MUSTNOT be used on sealed systems.The appliances are NOT suitable for gravity central heating, norare they suitable for the provision of gravity domestic hot water.The hot water cylinder and ancillary pipework, not forming part ofthe useful heating surface, should be lagged to prevent heat lossand any possible freezing - particularly where pipes run throughroof spaces and ventilated under floor spaces.Boilers not fitted to a sealed system must be vented.IMPORTANTA minimum length of 1m of copper pipe MUST be fitted to bothflow and return connections from the boiler before connection toany plastic piping. This applies to ALL types of installation.Draining taps MUST be located in accessible positions, whichpermit the draining of the whole system - including the boilerand hot water storage vessel. They should be at least 1/2" BSPnominal size and be in accordance with BS. 2879.WATER TREATMENTThese boilers incorporate a cast iron heat exchanger and analuminium heat exchanger.IMPORTANT. The application of any other treatment to thisproduct may render the guarantee of Wolseley UK INVALID.Wolseley UK recommend Water Treatment in accordance withthe Benchmark Guidance Notes on Water Treatment in CentralHeating Systems.Wolseley UK recommend the use of Fernox, GE Betz Sentinel orSalamander water treatment products, which must be used onaccordance with the manufacturers instructions.For further information contact:Fernox Manufacturing Co. Ltd, Cookson Electronics, Forsyth Road,Sheerwater, Woking, Surrey. GU21 5RZ. Tel. +44 (0) 1799 521133orSentinel Performance SolutionsThe Heath Business & Technical Park, Runcorn, CheshireWA7 4QX. Tel: 0800 389 4670. www.sentinel-solutions.netorSalamander Engineering Ltd, Unit 24, Reddicap Trading Estate,Sutton Coldfield, West Midlands B75 7BU. Tel. +44 (0) 121 378 0952Notes.1. It is most important that the correct concentration of the watertreatment products is maintained in accordance with themanufacturers' instructions.2. If the boiler is installed in an existing system any unsuitableadditives MUST be removed by thorough cleansing.BS7593:1992 details the steps necessary to clean adomestic heating system.3. In hard water areas, treatment to prevent limescale may benecessary - however the use of artificially softened water isNOT permitted.4. Under no circumstances should the boiler be fired before thesystem has been thoroughly flushed.BOILER CONTROL INTERLOCKSWolseley UK recommend that heating systems utilising fullthermostatic radiator valve control of temperature in individualrooms should also be fitted with a room thermostat controllingthe temperature in a space served by radiators not fitted withsuch a valve as stated in BS. 5449.Central heating systems controls should be installed to ensurethe boiler is switched off when there is no demand for heating orhot water.continued . . . .