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IF WATER IS TOO COLD 

 

Turn knob “C”

 

anti-clockwise

 in the 

direction of the “red arrows” until the next 

number is displayed in Window “D” and 

continue turning anti-clockwise until you get the 

water temperature of your liking.  

 

Wait 20 seconds

 after each adjustment for 

the water temperature to stabilise. 

 

The final adjustment may be anywhere on the 

scale, even between numbers. 

 

If after turning fully anti-clockwise water is still 

too cold, set shower pattern on shower handset 

to outer or inner pattern only. 

 

IF WATER IS TOO HOT 

 

Turn

 

knob “C” clockwise

 in the direction of the 

“blue arrows” until the next number is displayed 

in Window “D” and continue turning clockwise 

until you get the water temperature of your liking.                                            

 

Wait 20 seconds

 after each adjustment for the 

water temperature to stabilise.  

 

The final adjustment may be anywhere on the 

scale, even between numbers. 

    

If after turning fully clockwise, water is still too 

hot, adjust knob “A” to “Med (medium)” setting 

and re-adjust as above. 

 

Water flow will be reduced on this setting. 

 
 
 
 

 

1.

 

Ensure the electricity and water are turned on to the unit. 

 

2.

 

Your shower has 2 control knobs (see diagram 1).                                                                                          

Knob “A” controls the 3 power settings.                                            

The most popular is “High”.  

There are also options for a “Med (medium)”                                                                                                  

or “Cold” shower (see notes 8 and 9).                                                         

 

Knob “C” controls the temperature of the water, and as a                                                                                    

helpful guide the knob position is indicated by a number                                                                                            

being displayed in Window “D”.                                                                                                                                 

On the scale “1” is the coolest, whilst “9” is the hottest. 

 

For this example turn outer knob “A” to “High”                                                                                                                       

and set knob “C” to display number “5”. 

 

3.

 

Press button “B”

. The water will flow and 3 lights will illuminate                                                                      

to indicate that the selected power rating is “High” (indicated by “High” next to the Indicator Lights).  

 

4.

 

Allow about 20 seconds

 for the temperature of the water to stabilise. 

 

5. 

Once a temperature setting to your liking has been achieved, knob “C” will rarely need adjusting. You 

must however take into account required adjustments for variations of incoming mains water temperature 

between summer and winter (see “Effect of Seasonal Incoming Water Temperature Changes” page 4).

 

 

6.

 

When you have 

finished

 showering, 

press button “B”

 only (the “Med (medium)” light will go out).                                                             

Water will continue to flow for up to 7 seconds before switching off.

                                                    

This reduces the temperature of the water in the tank for the next user.                                                                           

Switch off the electricity at the ceiling switch or local isolator. 

 

7.

 

The “Med (medium)” setting of knob “A” reduces the power used by the shower giving a cooler shower or 

the option of reduced water flow. This option is mainly used for summer usage and if this is used then 

knob “C” must be re-adjusted. On this setting 2 lights will illuminate. 

 

8.

 

The “Cold” setting of knob “A” will supply water without any heating, and 1 light will illuminate. 

 

9.

 

Your shower is 

designed to stabilise temperature

 changes caused by water pressure fluctuations (see 

“Effect of Other Water Devices on Incoming Water Supply” see page 4).  

 

WARNING:  DO NOT SWITCH THE SHOWER ON IF YOU SUSPECT IT OF BEING FROZEN.  

WAIT UNTIL YOU ARE SURE IT HAS THAWED OUT. 

 

WARNING:  DO NOT OPERATE THE SHOWER IF WATER LEAKS FROM THE PRESSURE RELIEF VALVE. 

MAINTENANCE IS REQUIRED BEFORE THE SHOWER CAN BE USED. 

 

HOW TO USE YOUR 

EXPRESSIONS 500S

 SHOWER (DETAILED) 

Summary of Contents for Expressions 500S

Page 1: ...IMPORTANT This booklet should be left with the user after installation and demonstration REDRING EXPRESSIONS 500S SMART TECHNOLOGY ELECTRIC SHOWER Installation and User Guide ...

Page 2: ...h button start stop facility which starts the shower at a pre set power and flow rate reducing the amount of adjustment required 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 and off When this happens your showering temperature will be held within a controlled band provided that the...

Page 3: ...igh and set knob C to display number 5 3 Press button B The water will flow and 3 lights will illuminate to indicate that the selected power rating is High indicated by High next to the Indicator Lights 4 Allow about 20 seconds for the temperature of the water to stabilise 5 Once a temperature setting to your liking has been achieved knob C will rarely need adjusting You must however take into acc...

Page 4: ...eat light will go out 7 The pressure relief device is to safeguard against abnormal pressure conditions Effect of Seasonal Incoming Water Temperature Changes 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 rate the lower the temperature and vice versa The temperature...

Page 5: ...hermal cut out safety device to operate Turn knob C clockwise direction of the blue arrows to increase water flow Slowly increase the water temperature by turning knob C anti clockwise in the direction of the red arrows until a comfortable showering temperature has been reached You MUST WAIT approximately 20 seconds for each adjustment to affect the water temperature Med medium setting may need to...

Page 6: ...flush clean Water too COLD Check circuit through thermal cut out Check circuit through microswitches on the pressure switch Check each element circuit Check operation of relay Check tightness of electrical connections No control over water flow Check Numbered Dial is correctly engaged into Control Knob see diagram 9 Undo headworks of stabiliser valve Check stabiliser is in place and remove any deb...

Page 7: ...nd level with or a maximum of 0 6 metres 2ft below the top of the riser rail Choose a flat piece of wall to avoid the possibility of distorting the backplate thus making the front cover a poor fit 3 Adjust the position to get the most convenient arrangement taking the following into account The possible need to use the handset over the sink for hair washing etc The heater must not be mounted in th...

Page 8: ...BEFORE CONNECTING THE PIPE WORK TO THE SHOWER ENSURE THAT THE PIPE WORK IS FULLY FLUSHED OUT 1 Unscrew the Red Cap and Washer from the shower outlet pipe and discard them in a suitable manner These have been used to seal the shower during transit and are no longer required 2 It is recommended that a WRAS Water Regulations Advisory Scheme listed isolating valve is fitted between the rising main and...

Page 9: ...able Length 4 0mm 6 0mm 32A Type B MCB 21m Max 35m Max 7 2 6 6kW 240 230V 6 0mm 10 0mm 40A Type B MCB 27m Max 45m Max 6 0mm 10 0mm 40A Type B MCB 27m Max 45m Max 8 5 7 8kW 240 230V 6 0mm 10 0mm 45A BS 1361 fuse 12m Max 21m Max 6 0mm 10 0mm 40A Type B MCB 27m Max 45m Max 9 5 8 7kW 240 230V 6 0mm 10 0mm 45A BS 1361 fuse 12m Max 21m Max 10 5 9 6kW 240 230V 10 0mm 45A BS 1361 fuse 12m Max Remember to ...

Page 10: ...wer settings can be selected g Check that knob C has been correctly aligned by turning anti clockwise and ensuring that knob turns approximately 1 full turn and when turned back fully clockwise returns to 12 o clock 1 6 Replace the top and bottom fastening screws 7 Fit the shower hose and operate the shower first without the handset to flush out particles fit the handset and then operate the showe...

Page 11: ...urved Accessories Cat No 83595320 Neon Cable Assy Cat No 93590506 Curtain and Rail Pack Cat No 83792812 Tank Clip Cat No 93590715 Curtain and Rail Pack with PRV Washer Cat No 93795817 Non Slip Mat Cat No 83792811 Cylinder O Ring Cat No 93795809 Thermal Cut Out 50 88 C Cat No 93797836 Phased Shut Down PCB Cat No 93797813 Phased Shut Down Relay Cat No 93797878 Handset Cat No 93597863 Height Adjuster...

Page 12: ...r As a helpful guide the knob position is indicated by a number being displayed in Window D On the scale 1 is the coolest whilst 9 is the hottest 5 When you have finished showering press the start stop button B again 6 Water will continue to flow for up to 7 seconds before switching off This reduces the temperature of the water in the tank for the next user The indicator lights will go out 7 Switc...

Page 13: ...CE IS REQUIRED BEFORE THE APPLIANCE CAN BE SAFELY USED CONSIDERATION SHOULD BE GIVEN TO SUPERVISING THE YOUNG ELDERLY AND THE INFIRM WHILST THEY USE THIS APPLIANCE During normal operation if an overheated water temperature is sensed then the heater will switch off and the Overheat light will illuminate The water will continue to flow and cool down before the heater switches back on again Leaflet N...

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