Swift Owner's Handbook - Swift Group

Filling the water heater1. Ensure that the drain valve of the heateris closed2. Start the fresh water pump3. Open a water tap and leave it open untilwater arrives. If a mixing valve is presentset it to the hot position and allow fillingto take place as described above.Emptying the domestic hot water heater1. Switch off the fresh water pump. When atrisk from frost and heating is turned off,always drain the domestic hot water fromthe boiler2. Open the drain valve on the heater byrotating the red knob by two clicks in ananti-clockwise direction (Fig.2)3. Open all the hot water taps.4. Check that water is running in thedrainage pipe, (The easiest way is to lookunder the vehicle). This is particularlyimportant during the winter, when snowand slush may block the pipe.Maintenance of domestic Hot waterheaterThe heater may be descaled with vinegar orformic acid, or alternatively with a specialdescaling agent.The agent is added to the fresh water that iscirculating through the system. Afterdescaling, the system is flushed with cleanwater. (Do not use agents containingbleach). The domestic hot water heater canbe removed from the main heater withoutaffecting other functions. Depending on theposition of installation the heater may requireremoval to provide access to the domestichot water heater tank.Note. The exhaust outlet in such a casemust be removed and refitted. The small O-ring in the exhaust-connecting piece must bereplaced whenever the exhaust outlet isremoved.The domestic hot water heater can bewashed out and refitted. Check that theO-ring is undamaged before fitting.Note: Only nuts with metal friction lockingFig. 2 may be used. Check that the domestic hot Fig. 3Fitted Equipmentwater heater is leak-proof after fitting bypressurising the system.Electrical coilsThe heater is equipped with 2 electrical coils,with an output of 1000 + 2000W. Regulationis taken care of automatically by setting theswitches as described earlier. The electricalcoils have a mechanical overheatingprotection device capable of tripping if thesystem is operated without water.Pressing the red button on the side of theheater (Fig.3) performs resetting of thetripped overheating protection. Resetting isonly possible after the system has cooleddown, and the button must be pressedfirmly. If the protection trips once more, thecause of the fault must be investigated.Consult a specialist.65