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Model 620 - Press button “C”. The electricity to the elements is then switched off, 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.
10. 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.
11. 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
detailed in note 9. 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.
12. 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
do this then increase the flow rate by turning knob “B” clockwise and check that the handset
does not require de-scaling. If it still continues, then rotate knob “A” to the MEDIUM power
setting, six o’clock position (Knob B will need adjusting).
13. Note that knob “B” IS NOT A TAP and does not turn the water off.
WARNING! DO NOT SWITCH THE SHOWER ON IF YOU SUSPECT IT OF BEING FROZEN.
WAIT UNTIL YOU ARE SURE IT HAS THAWED OUT.
Redring After Sales Service
We offer a technical advisory service on the telephone to contractors and other customers with
problems in the field.
RING 0870 9000 430
Spare parts can be supplied against any debit or credit cards.
RING 0870 0102 829
Remember to quote the exact type of shower, as written on the front of the shower and on this
leaflet. It may also be of use to have a note of the catalogue number and serial number as stated
on the underside of the shower
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
heating elements in the copper heating tube.
2. The required water temperature is achieved by adjusting
the rate of water flow. Diagram 2 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
3