How Your Mira Advance Atl Shower Works - Mira SDP044T Installation & User Manual

3. How your Mira Advance ATL Shower Works

Refer to section: "Important Safety Information" fi rst.
3.1 The Mira Advance ATL has been precision engineered to provide years of high
performance showering. To ensure user safety whenever in use, the unit always
gives priority to the showering temperature and continually monitors the supply
conditions to make sure this temperature is stable. To do this, the unit carries
out thousands of adjustments each second to maintain the selected showering
temperature at the chosen fl ow setting.
3.2 The unit constantly monitors the following conditions:
• The incoming cold water temperature.
• The outgoing shower temperature.
• The fl ow rate of water.
• The current user settings.
The processor then calculates the fl ow rate and power level required to keep
the outgoing temperature constant. This mode of operation requires the staged
power up and power down of individual heating elements. During this sequence
the user may hear a number of audible 'clicks' and the fl ow rate may change.
3.3 As outlined in section "Shower Performance", certain conditions can cause
the shower's performance to vary. Under certain supply conditions, some fl ow
settings may not be possible at the desired showering temperature. These
limitations are detailed as follows:
Flow Settings - In hot summer conditions, high incoming water temperatures
may cause the unit to override and reduce the selected fl ow settings. Users
may notice a reduced fl ow rate, which is not indicated by the unit. Normal fl ow
rates will typically be restored once the incoming temperature has dropped.
Temporary Changes - Temporary changes in supply conditions may cause the
selected fl ow setting to be temporarily unavailable. For example, the fl ushing of
a toilet on the same supply. If temperature control at the selected fl ow setting
is not possible, the unit will automatically override that setting (may switch fl ow
setting either down or up) and attempt to control at the next nearest setting. For
instance, the unit may override the power setting from High - Medium - Low.
Note! the unit continues to remember and display the user selected fl ow setting
on the control panel, even though the actual fl ow setting has automatically
changed. If this override occurs, the user may see visible changes in the shower
fl ow at the handset during showering. At all times, the selected safe showering
temperature will be maintained.
For safety reasons, the unit will continue to override the desired power setting
even though the reason for low pressure has been corrected (say another draw
off system). In this case the user may be able to restore the desired power
setting by reselecting the relevant power button.
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