WARNING! DO NOT SWITCH THE SHOWER ON IF YOU SUSPECT IT OF BEING FROZEN.
WAIT UNTIL YOU ARE SURE IT HAS THAWED OUT.
How your shower works
Your shower is designed for convenience, economy and safety of use
1. Water is heated instantaneously as it flows over the elements in the copper heating tube.
2. The required water temperature is achieved by adjusting the rate of water flow.
Diagram 3 shows the principle involved in relating temperature rise
to flow rate. The higher the water flow the lower the temperature
rise, and vice versa. The temperature of the water supplied from
the mains can vary considerably throughout the year from 5 to 20
C.
This means that in winter, the flow rate will be less than in the
summer to achieve the same outlet temperature.
In Summer the
‘MEDIUM’
power setting may give adequate hot water.
3. The heaters are only switched on when sufficient water is flowing.
This is done automatically with a switch, which works on water pressure.
4. The water is turned on and off by the solenoid valve built into the shower.
This is switched on by button ‘A’, ‘B’ or ‘C’. (diagram 1)
5. The flow of water is automatically held at the level set by the user even though the supply
pressure may vary. (See ‘How to use your shower’ note 7).
6. If the water supply falls below a set limit, the pressure switch will switch off the power to the
heating elements in the copper heating tube.
7. As a further safeguard, a thermal cutout switches the power off if the water temperature
climbs above a set limit. The cutout gives an audible click when it switches off, but will reset
itself if water is run through the shower for 10 to 20 seconds.
8. The pressure relief device is to safeguard against abnormal pressure conditions, and
provides a level of appliance protection should an excessive build of pressure occur within
the shower.
3
Diagram 3
