Redring Water Heater WS7 User Guide

Thank you for choosing a quality  
Redring product manufactured in  
Peterborough, England  
These instructions should be read in full before commencing the installation.  
We recommend that the installation should only be carried out by a suitably qualified person.  
The Redring WS7 is an open outlet, thermal storage water heater for use with Redring recommended fittings for one  
outlet only. It operates on the displacement principle i.e.; when cold water is admitted into the bottom of the tank, hot  
water flows out through the outlet. There are two models: 3kW, which ensures rapid reheating of the water, and a 1kW  
unit to suit special electrical requirements.  
Fixing  
The wall bracket should be securely fixed in  
position (see diagram 1). The heater is then hung  
on the wall bracket. Further security can be  
obtained by marking the position of the extra fixing  
holes (see diagram 1) and applying appropriate  
wall fixings to these positions.  
When the unit is used above the sink with the cold  
inlet tap and spout supplied, it is recommended that  
these extra fixing positions be used.  
The bottom of the heater should be approximately  
350mm above the top of the sink.  
The outlet should be at least 13mm above the  
maximum possible water level for any  
appliance that is to be filled from the heater.  
Water Connection  
(See diagram 4 for suggested installation plan)  
Oversink (Diagram 2a)  
When using the tap and spout as supplied, the cold  
water connection is made directly to the 15mm  
compressions fitting at the rear of the cold inlet tap.  
Ensure that the water flow is in line with the flow direction arrow moulded on the cold inlet tap.  
Undersink (Diagram 2b)  
If the unit is to be mounted below sink level, it should be connected to the special open outlet Monoblock Mixer Tap  
recommended by Applied Energy Products Limited (see page 3).  
The economic performance of the heater will be enhanced by lagging the hot water pipe from the heater to the outlet.  
Oversink and Undersink Installation  
Before final assembly of the tap the appropriate restrictor insert must be selected and fitted into the end of the cold inlet  
pipe on the heater (see Table A). The correct insert will ensure that the flow rate of water through the heater is at an  
optimum to prevent undue mixing of the incoming cold water with the stored hot water, as well as avoiding any  
unnecessary pressure within the tank.  
Electrical Connection  
The installation must be in accordance with the current BS.7671 (IEE Wiring Regulations) and/or local regulations, and  
“Part P” of the Building Regulations.  
1. The heater is suitable for 240/230V single phase A.C supply.  
2. The live (brown) and neutral (blue) wires must be connected to the designated positions in the terminal block and the  
earth (green/yellow) to the earth  
position.  
3. WARNING: THIS APPLIANCE MUST BE EARTHED  
4. The mains cable should be prepared as shown (see diagram 3)  
5. A means for disconnection in all poles must be incorporated in the fixed wiring in accordance with the wiring rules.  
6. The cable should be heat resisting 3-Core flexible PVC of 0.75mm² for the 1kW model and 1.25mm² minimum for the  
3kW model.  
7. NOTE – THE APPLIANCE MUST BE FILLED WITH WATER BEFORE POWER IS SWITCHED ON.  
 
Suggested Installation Plan  
Draining the Tank  
If it is required to drain the tank, this can be effected by undoing the screw in the base plate of the heater (see “Tank  
Drain” diagram 2), and catching the water in an appropriate vessel.  
The heater must be disconnected from the electrical supply before commencing this operation.  
If the unit fails to heat water  
1. Check that the mains fuses are not blown and that the mains supply is switched is switched on.  
2. Check that the cold water supply is on.  
3. Check that the outlet has not been blocked in any way.  
If the fault persists: -  
Contact the dealer from whom you purchased the appliance or the installation engineer.  
You can also call the Technical Advisory Helpline on 08709 000430  
Installation Engineer Note:  
The most likely reason for no heated water is an open circuit thermal fuse. See label on front insulation for details.  
This can be caused at initial commissioning if the heating element is energized with no water in the tank.  
Alternatively, it may be due to a back siphonage in the cold water supply caused by a break or disconnection.  
If you feel that your installation may suffer from a water failure, we recommend the fitting of a non-return water check  
valve.  
Redring After Sales Service  
We offer a technical advisory service on the telephone to contractors and other customers with problems in the field.  
RING 08709 000430  
Remember to quote the exact type of unit, as written on the unit front and on this leaflet.  
It may also be of use to have a note of the model and serial number as stated on the underside of the unit.  
Recommended Accessories  
Oversink Accessories  
Swivel Arm (450mm)  
Swivel Arm (600mm)  
Monoblock Mixer  
Catalogue No. 84-780404  
Catalogue No. 84-780405  
Catalogue No. 84-780408  
Spare parts/accessories can be supplied from Redring Sales Hotline 08709 000420  
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Full details of terms and conditions are available on request from: -  
APPLIED ENERGY PRODUCTS LIMITED, MORLEY WAY,  
PETERBOROUGH PE2 9JJ  
TEL +44 (0) 1733 456789  
FAX: +44 (0) 1733 310606  
(Leaflet No. 578-2018-05A)  
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