Shower Handbook
(Also covers 650 chrome variant)
IMPORTANT:
Please retain this booklet for future reference
Diagram 1
THIS APPLIANCE CAN BE USED BY CHILDREN AGED FROM 8 YEARS AND
ABOVE AND PERSONS WITH REDUCED PHYSICAL, SENSORY OR MENTAL
CAPABILITIES, OR LACK OF EXPERIENCE AND KNOWLEDGE IF THEY HAVE
BEEN GIVEN SUPERVISION OR INSTRUCTION CONCERNING USE OF THE
APPLIANCE IN A SAFE WAY AND UNDERSTAND THE HAZARDS INVOLVED.
CHILDREN SHALL NOT PLAY WITH THE APPLIANCE.
CLEANING AND USER MAINTENANCE SHALL NOT BE MADE BY CHILDREN
How to use your shower
1. Ensure the electricity and water are tu
2. Functions of buttons: -
Button ‘A’ – Starts shower on ‘HIGH’ giving maximum power.
Button ‘B’ - Starts shower on ‘MEDIUM’ giving economy setting.
Button ‘C’ - Starts shower on ‘COLD’ giving water with no heating.
Button ‘D’ – ‘Shutdown’ switches the shower off
and cools the water automatically.
Your shower has 3 power settings selected by pushing the
corresponding button on the front cover.
It can be started by pressing ‘A’, ‘B’ or ‘C’ buttons.
Once pressed, a light will illuminate above the button confirming
that power selection has been made.
3. Once either ‘A’ (HIGH) or ‘B’ (MEDIUM) have been pressed you will need to adjust the
temperature of the water. This is done by rotating knob ‘E’.
If this is too low then turn the knob anti clockwise and allow 20 seconds for the
temperature to settle. Repeat this procedure until the temperature is to your liking.
4. If the temperature is too high then turn knob ‘E’ clockwise allowing 20 seconds between
adjustments. The final adjustment can be anywhere on the scale.
#
5. Once a temperature setting to your liking has been achieved knob ‘E’ will rarely need
adjusting. Adjust for variations of mains water temperature between summer and winter.
6. When you have finished showering, push button ‘D’ only. The electricity to the elements
is then disconnected and the adjacent light will flash, water will continue to flow for
approximately 5 seconds before switching off. This reduces the temperature of the water in
the unit. Switch the electricity off at the ceiling switch or local isolator.
7. Your shower is designed to stabilise temperature changes caused by water pressure
fluctuations. These can result from toilets being flushed or taps being turned on or off.
When this happens your showering temperature will be held within a controlled band,
provided that the minimum pressure required by the shower is maintained.
8. Your shower requires a minimum operating pressure of 100 kPa (1.0 bar, 14.5 p.s.i.).
At pressures above 100 kPa (1.0 bar, 14.5 p.s.i.) it will minimise temperature fluctuations as
detailed in note 7.
If the water pressure falls below 100 kPa (1.0 bar, 14.5 p.s.i.), it is likely that the pressure
switch will turn off the power to the heating elements, resulting in a cold shower.
9. During normal operation if the shower senses an overheated water temperature then the
thermal cutout will switch off the heating elements. Water will continue to flow and as the
water temperature falls the heating elements will be turned back on. If the unit continues to
cycle then increase the flow rate by turning knob ‘E’ clockwise and check that the handset
does not require de-scaling. If it still continues to cycle then press button ‘B’ to the
‘MEDIUM’ power setting. (Knob ‘E’ will need adjusting).
10. Note that knob ‘E’ IS NOT A TAP and does not turn the water off.
11 k
2
Switch on electricity supply to shower at local isolator.
Switch off electricity supply to shower at local isolator.
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 20C.
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
What to do if things go wrong
SELF HELP
If the shower is not working satisfactorily, make the following checks before calling out the
installer. Any of these adjustments could restore the performance
a) The shower
cycles from
HOT to COLD
The shower temperature is set too hot causing the thermal cut-out
(safety device) to operate.
Turn temperature control clockwise to increase water flow.
Slowly increase the water temperature by turning temperature control
anti-clockwise until a comfortable showering temperature has been
reached.
You MUST WAIT approx’ 20 seconds for each adjustment to affect the
water temperature.
b) Water too HOT
Increase water flow by adjusting the temperature control clockwise.
Clean spray plate holes.
Select outer or combination spray patterns.
Switch power to MEDIUM setting.
Increase pressure of water supply e.g. fully open service valve or stop
cock. Check hose is not kinked restricting the water flow.
c) Water too COLD
Decrease water flow by adjusting the temperature control
anti-clockwise.
Select inner or outer spray patterns only.
Switch power to HIGH setting.
d) Spray pattern
poor
Clean spray plate and flush heater with handset removed.
Select inner / outer spray pattern.
e) Water goes cold
while using
shower
Check power setting lights are on
Check water pressure has not fallen so far as to let pressure switch cut
out, e.g. another tap drawing water off. Raise position of handset.
e) Broken parts
Please contact our spares department on 0844 372 7750
Fitting instructions are provided with spares.
PROFESSIONAL SERVICE
If the previous checks 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.
The following additional checklist is provided for the benefit of the qualified serviceman.
WARNING! SWITCH OFF THE ELECTRICITY AT THE ISOLATING SWITCH
BEFORE REMOVING THE COVER TO MAKE CHECKS.
a) Water too HOT
Water flow restricted by blockage in filter of solenoid valve.
Switch off water and undo plastic nut on elbow, loosen brass nut to
swing elbow away from solenoid.
Remove filter in solenoid with long nosed pliers and flush clean.
b) Water too COLD
Check circuit through thermal cut-out
Check circuit through microswitch on the pressure switch
Check each element circuit.
Check tightness of electrical connections.
c) Water discharge
from pressure
relief valve
Check for cause of high pressure and remove it.
Blockage on outlet i.e. blocked spray plate.
Replace the pressure relief disc (not covered by guarantee).
d) Water does not
flow when
button ‘A’, ‘B’
or ‘C’ is pressed
Ensure flying lead from the PCB has been connected to the front cover.
Check the circuit through the solenoid coil.
Check circuit through microswitch
Possible PCB fault, if defective, then replace.
Power supply not reaching shower.
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