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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 ‘MED
(medium)’ or ‘LOW’ power setting may give adequate hot water.
The heaters are only switched on when sufficient water is flowing. This is done automatically with
a switch, which works on water pressure.
3. The water is turned on and off by
the solenoid valve built into the
shower. This is switched on by
rotating Knob “A” (pressing button
“C” - model 620 only)
4. 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 9).
5. If the water supply falls below a set
limit, the pressure switch will operate
and switch off the power to the
elements.
6. 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.
7. The pressure relief device is to
safeguard against extreme abuse conditions.
8. There are 3 defined spray plate settings adjustable by rotating the spray plate, (see
diagram 4). If desired many combinations between the 3 can be achieved. (Model 600 has
a different shape handset but the modes are the same). The modes have a positive to
identify them.
IN ORDER TO MAINTAIN THE PERFORMANCE OF YOUR SHOWER YOU MUST CLEAN THE
SHOWERHEAD.
All water contains particles of lime, which build up in the showerhead and unit reducing the
performance. It is therefore important to clean the showerhead by regularly rubbing the rubber
spray nozzles or, in severe cases dipping the spray plate into a suitable de-scaling solution.
The frequency of this will vary from weekly to quarterly depending on the water hardness and
experience.
Diagram 4
4