User guide

8
IF WATER IS TOO COLD
Turn knob “B” anti-clockwise in the
direction of the “red arrows” a small amount
and continue turning clockwise until you get
the water temperature of your liking.
Wait 10 seconds after each adjustment
for the water temperature to stabilise.
The final adjustment may be anywhere on
the scale.
IF WATER IS TOO HOT
Turn knob “B” clockwise in the direction of
the “blue arrows” a small amount and
continue turning anti-clockwise until you get
the water temperature of your liking.
Wait 10 seconds after each adjustment for
the water temperature to stabilise.
The final adjustment may be anywhere on the
scale.
1. Ensure the electricity and water are turned on to the unit.
2. Your shower has 2 control knobs (Diagram 10).
Knob “A” controls the Start/Stop operation and
the water flow rate of the shower unit.
Knob “B” controls the temperature of water and
also incorporates a temperature limiter.
3. To start the shower turn knob “A” clockwise
from the STOP position.
Adjust the control until a satisfactory flow rate
is achieved.
For maximum flow, turn knob “A” fully clockwise.
4. To adjust the temperature, turn knob “B”
clockwise in the direction of the “blue arrows”
for a cooler shower and anti-clockwise in the
direction of the “red arrows” for a warmer shower.
Please allow time for the hot water to reach the
shower unit from the storage cylinder.
Note: It is recommended that you test the water temperature with your hand before
stepping under the water spray, even if the shower has just been used.
5. To stop the shower, turn knob “A” fully anti-clockwise to the “Stop”
position.
6. Switch off the electricity at the ceiling switch or local isolator.
7. As a safety feature, a temperature limiter is provided so that the maximum working temperature
of the shower unit can be set.
The limiter is factory set, but can be adjusted to suit on site conditions. If the position of the
limiter requires adjustment please refer to the section in the commissioning procedure (page 7).
8. To override the STOP position of the limiter, press the button on knob “B” and continue turning
knob “B” anti-clockwise in the direction of the “red arrows” until the desired temperature is
reached.
9. If the temperature limiter has been overridden, knob “B” MUST always be returned to the
normal temperature range when the shower is switched off. To do this, simply turn knob “B”
clockwise past the limier position. The button does not need to be depressed when returning to
the normal temperature range.
10. There are a number of defined spray setting provided by the handset.
The handset spray plate can be turned in either direction to change the spray pattern.
HOW TO USE YOUR EXPRESSIONS 520 POWER SHOWER
5
5. In all cases a dedicated cold water supply should be taken from the cold water cistern to the
shower unit.
The connection in the cistern should be made below the level of the cold water feed to the hot
water cylinder.
The connection should also be on the opposite side of the cistern to the float valve.
This will prevent air being sucked into the pump chamber.
6. It is recommended that isolating valves are fitted between the cold water storage cistern and the
shower unit and between the hot water cylinder and the shower unit (Diagrams 4 & 5).
This will allow the unit to be serviced or exchanged without turning off the cold water at the
water stop valve and draining the cold water cistern.