User manual APPLIED ENERGY WS7

[. . . ] It operates on the displacement principle i. e. ; when cold water is admitted into the bottom of the tank, hot water flows out through the outlet. There are two models: 3kW, which ensures rapid reheating of the water, and a 1kW unit to suit special electrical requirements. Fixing The wall bracket should be securely fixed in position (see diagram 1). The heater is then hung on the wall bracket. [. . . ] The heater is suitable for 240/230V single phase A. C supply. The live (brown) and neutral (blue) wires must be connected to the designated positions in the terminal block and the earth (green/yellow) to the earth position. WARNING: THIS APPLIANCE MUST BE EARTHED 4. The mains cable should be prepared as shown (see diagram 3) 5. A means for disconnection in all poles must be incorporated in the fixed wiring in accordance with the wiring rules. The cable should be heat resisting 3-Core flexible PVC of 0. 75mm² for the 1kW model and 1. 25mm² minimum for the 3kW model. NOTE ­ THE APPLIANCE MUST BE FILLED WITH WATER BEFORE POWER IS SWITCHED ON. Usage If the heater is used regularly it is recommended that it is left on at all times. The thick insulation ensures economic running costs. Allow the heater to fill with water before switching on the electricity. This will avoid the heating element becoming too hot, causing the one-shot safety thermal fuse to operate. The four settings indicated by the thermostat are: - III II I This gives very hot water, which can be mixed with cold water to produce quantities of usable water greater than the actual capacity of the heater. This setting will deliver, direct water suitable for washing up. This setting will deliver, direct, water suitable for hand washing. This setting will maintain the water in the heater just above freezing point if the heater is to be left unattended whilst subject to freezing conditions. [. . . ] This can be caused at initial commissioning if the heating element is energized with no water in the tank. Alternatively, it may be due to a back siphonage in the cold water supply caused by a break or disconnection. If you feel that your installation may suffer from a water failure, we recommend the fitting of a non-return water check valve. Redring After Sales Service We offer a technical advisory service on the telephone to contractors and other customers with problems in the field. RING 08709 000430 Remember to quote the exact type of unit, as written on the unit front and on this leaflet. [. . . ]