Download SUN G10 2S
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SUN G10 2S fig. 3c D L (m) Italiano H (m) C Øi 8 mm. Øi 10 mm. 0.0 25 60 0.5 21 50 1.0 18 44 1.5 15 38 2.0 12 32 2.5 10 26 3.0 8 20 3.5 6 16 L Total length of the inlet pipe, including the vertical sections H Difference in height Øi Internal diameter of pipes P Auxiliary pump English Nota: for each curve or gate valve, add 0.25 metres to the length of the pipe (pressure drop). fig. 3d 11 Connection to the pump 6 4 3 Key Suction Return with internal by-pass screw Delivery to nozzle 1st stage pump pressure adjustment Pressure gauge connections Vacuum gauge connection 2nd stage pump pressure adjustment 2nd stage coil 1st stage coil By-pass screw Nozzle 7 10 2 1 fig 4 Cod. 35445523 - 02/2007 (Rev. 00) 23 Español 1 2 3 4 5 6 7 8 9 10 11 Deutsch If the pump is operated with the return closed 5 and the bypass screw inserted, it will be damaged immediately. Français The burner leaves the factory with the internal pump bypass closed, that is, the burner is fitted for two-pipe connection. Remove the caps and connect the two flexible pipes to the pump inlet (1) and return (2), as shown in Figure 4, making sure the flexible pipes are not twisted and that they are positioned so that they will not be stepped on or come into contact with the hot parts of the boiler. 8 If the internal pump bypass needs to be used for single-pipe connections, remove the bypass screw (10) and cap the return fitting (2) on the pump, connecting only the flexible 9 pipe to the inlet fitting (1).