Operation - Mira elite 2 Installation, Operation, Maintenance Manual

Section
10
1. Advice to Users
Read the section "Important Safety Information" first
1.1. Pumped electric showers work by taking cold water and passing it over the
heating elements contained in the heater tank of the shower.
1.2. The showering temperature is adjusted by turning the temperature control
knob, which varies the flow of cold water across the elements. The slower
the rate of flow, the warmer the water and vice versa. The holes in the
spray plate of the shower handset should always be kept clean to maintain
a consistent flow and assist in temperature control.
1.3. All Mira electric showers are designed to stabilise temperature changes
caused by water pressure fluctuations. Average shower temperatures will
be held within a 6°C band, provided that the minimum required pressure is
maintained.
1.4. The current design of Mira pumped electric showers does not
thermostatically control the showering temperature, and as such cannot
react to changes in temperature caused by a change in mains voltage, or
changes in the cistern-fed water temperature.
1.5. The temperature of cistern-fed water will vary between Summer and Winter,
and therefore, the temperature control knob will need to be adjusted to take
account of these seasonal conditions. The length of dead leg of the water
supply pipe or its proximity to hot pipes, may effect the showering
temperature.
1.6. If the water temperature reaches an unsafe level, the thermal switch
assembly turns off the elements. When the water temperature falls the
elements will be turned on. The switch will cycle on/off/on if the flow rate is
not increased, and the shower temperature reduced. The "OVERHEAT"
light on the Elite 2 will provide a visual indication of this condition.
1.7. When the shower is first turned on or a different temperature is selected,
there will be a slight delay before the shower temperature changes, to allow
the previously heated water to be used up.
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Operation