ELECTRIC SHOWER REQUIREMENTS

Outlined below are the typical requirements for the provision of an electric shower.  Any model numbers quoted are from the Triton range.

Site Requirements - Electrical
The shower must be permanently connected to the electricity supply via a double pole isolating switch with a minimum contact gap of 3mm in both poles. The switch must be readily accessible but out of reach of a person using a fixed bath or shower, except for the cord of a pull cord operated switch. The wiring must be connected to the switch without the use of a plug or socket outlet. The supply cable selected for installation must conform to the relevant table in the current I.E.E. regulations. The minimum size will be 6mm² but in some cases 10mm² or larger will be required. In the interests of electrical safety a 30mA RCD (Residual Current Device) should be installed in all UK electric and pumped shower circuits. This may be part of the consumer unit or a separate unit.

Site Requirements - Water
To ensure activation of the heating elements the shower must be connected to a cold rising main water supply with a minimum running pressure of 1.0 bar (14.5 psi) at a minimum flow rate of 8 litres/minute and a maximum static pressure of 10 bar (145 psi).  Minimum running pressure of 1.3 bar (20 psi) required for the T200re model.  Minimum running pressure must be obtained at 9 litres/minute for the 9.5kW rate models.

An isolation valve must be fitted in a convenient position in the supply pipe to allow the shower to be serviced.

Where installation could result in the sprayhead falling below the top of the bath or shower tray, it will be necessary to fit a Double Check Valve to the inlet to prevent back flow, in accordance with Water By-Laws. 

Water Inlet Connection 15mm diameter
Water Outlet Connection Threaded 1/2" BSP

Please note: Electric showers must not be installed in steam rooms/cubicles. To reduce the effects of condensation, rooms containing a shower should be adequately ventilated.

Temperature/Flow Rate
The electric heating elements operate at a constant rate and the temperature of the water is varied by adjusting the flow rate using the temperature control. The greater the flow the cooler the water and vice versa.
The flow rate will be greater in the summer than in the winter due to the variance in the incoming water temperature. At border line water pressures, reduction in flow rate can occur. Therefore, it may be necessary to select a lower power setting during the summer to achieve your preferred showering temperature. Showers not fitted with a power selector may not provide a full range of cool showering temperatures.

Temperature Stabiliser
Within a pressure range of 2.0 bar to 10 bar, the selected shower temperature will remain within +/-6)ºC (conforms to EN60335-2-35). Should water pressure or flow fall below the specified minimum requirements the shower temperature may fluctuate. The Millennium will maintain temperature to within +1ºC within a pressure range of 1.0 bar to 10 bar.

Auto Reset System
During normal operation if an overheat temperature is sensed, power to the elements will be reduced. Water will continue to flow. When the temperature has cooled sufficiently, power to the elements will be automatically restored to the previous setting at the time of interruption.