applied-energy selectronic Manual De Usuario

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6
How Your  Shower Works
1.
Water is heated instantaneously as it flows over the heaters in the plastic heat exchanger assembly.
2.
The shower automatically adjusts the power to the heating elements and flow of water to achieve the
selected water temperature. The electronics senses the incoming water temperature and the flow of
water through the heat exchanger. It then works out how many heaters to switch on so that the shower
temperature matches the temperature selected by the buttons.
3.
The amount of hot water available at the selected temperature is limited by the total power of the heater.
The ideal flow rate is calculated and adjusted automatically.
4.
The water is turned on and off by the solenoid valve built into the shower.
5.
A stabiliser is built into the flow valve to automatically compensate for small fluctuations in water 
pressure that frequently occur in households. There are three further controls to cater for exceptional 
reductions in water pressure to prevent the shower from getting too hot.
a)  If the flow of water is less than 1.0 l/min the power to the elements is switched off, but the solenoid 
valve remains open allowing water to flow through the shower.
b)  If the outlet temperature sensor senses an excessive temperature the flow of water and the heating 
elements will automatically switch off. The electronics will signal over temperature condition (see 
“over temperature shutdown” section).
c)  A two stage mechanical thermal cut-out is mounted on the top of the heat exchanger independent of
the electronics. Stage one switches the power off to the elements if it senses an excessive 
temperature. The switch operates with an audible click and will reset if cold water is run through the 
shower. Stage two only operates if an extreme temperature is sensed. The cut out will permanently 
switch off and it will then have to be replaced.
6.
A pressure relief device is fitted to safeguard against other extreme conditions. If this operates a 
replacement part will be required.
Troubleshooting
If the performance of the shower deteriorates in service, follow the checks in the “self help” table opposite
before calling out the contractor. Any one of the simple adjustments could restore the performance.
If these fail to restore the performance you should seek professional help.
The person who installed the shower is probably the best one to repair it and is certainly the person to 
contact if you have a problem in the guarantee period.