TURBOmax VUW 282 E - Heatingspares247.com

4.5.3.4 Gas supplyThe boiler is supplied with a 20 x 15mm gas service valve (10, fig. 14). Fitthe 20mm compression fitting to theboiler gas inlet (11, fig. 14) andtighten. Install a gas supply pipe notless than 15mm diameter and connectto the gas service valve. (Ensure thegas supply pipework is adequatelysized such that a 20 mbar - (8" w.g.) -gas pressure is available at the boilerinlet at full flow rate). Tighten all unionconnections.4.6 Connecting the flueassembly to the boilerNote : A flue restrictor ring is suppliedpacked with the users andinstallation instructions.The restrictor should be used underthe following circumstances : -fig. 17GW 553/0Horizontal fluesWhere a horizontal flue less than 1 min length is used.(DO NOT fit the restrictor where thehorizontal flue is more than 1 m inlength).Vertical fluesWhere a vertical flue less than 1 m(e.g. 1 m between the top of theboiler and the bottom of the verticalair / flue duct assemly) is used(DO NOT fit the restrictor where thevertical flue is more than 1 m inlength).4.6.1 Horizontal FlueRemove two screws (1, fig. 18) andtake off one half ring (2, fig. 18). Ifnecessary, fit the flue restrictor ring(Note : It will be necessary to removeboth half rings if the flue restrictor ringis to be fitted. The flue restrictor ringshould be placed on top of flue outletdirectly below the two half rings seefig. 18a. One half ring should bereplaced immediately).Place a 63mm diameter x 35 mmwide flue duct clamp (4, fig. 19)loosely over the flue duct (1, fig. 19).Place the 63 mm diameter x 25 mmwide flue duct clamp (5, fig. 19) overthe flue gas connection on the boiler.fig. 18fig. 18aGW 592/0GW 705/0fig. 19GW 593/017