C) Electrical

1.The electrical installation must be in accordance with current BS. 7671 (I.E.E. regulations).

2.The unit should be connected into a switched 3 amp double pole fused spur, with a minimum contact gap of 3mm in each pole.

The switch must be fitted outside the bathroom.

Alternatively, a double pole ceiling switch, with a pull cord and a minimum contact gap of 3mm in each pole could be used inside the bathroom.

For additional safety, it is recommended that a residual current device be used with either of the above switches.

3.The earth continuity conductor of the electrical installation MUST BE effectively connected electrically to all exposed parts of the appliances and services in the room in which the water heater is to be installed in conformity with the current BS. 7671 (I.E.E. wiring regulations).

WARNING : THIS APPLIANCE MUST BE EARTHED.

4.We recommend using 1.0mm2 Twin and Earth cable for this application. Connect the mains cable in to the terminal block, ensuring that all power is switched off before connecting to the mains supply.

Recommended order : -

a)Strip back wire approximately 6.0mm.

b)Ensure wires are secure in the correct terminal block holes.

c)Ensure that the mains cable is securely clamped in the cable clamp provided on the backplate.

5. Schematic wiring diagram.

Diagram 15

PCB

 

 

Motor

Start/Stop

Solenoid

switch

 

Potentiometer

Terminal

 

 

Block

 

Double pole

 

isolating switch

N

L

220–240V Mains supply consumer fuse box

FINAL INSTALLATION PROCEDURE AND COMMISSIONING

WARNING : DO NOT switch on the electricity supply until the following procedure has been completed. Failure to do so could cause the pump to run dry and invalidate the guarantee.

1.Fit the shower hose to the outlet of the shower unit. Do not connect the handset at this stage. Ensure that the water isolating valves are fully open and that the hose is directed to waste.

2.The shower unit is factory set in the commissioning mode. A commissioning link is connected to the p.c.b. (see diagram 2), which opens the solenoid without switching on the motor. This allows water to flow through the pump, thus ensuring that all air is removed.

The cover is not required to be fitted at this stage but be aware of live parts when the electricity is temporarily switched on.

3.Switch on electrical supply. After a few moments water should drip from the hose.

It may be necessary to hang the hose from the shower unit whilst priming especially if the head of the water is minimal. This will speed up the priming process.

When water drips through the hose at a constant rate. Stop flow of water by switching off the electrical supply.

Ensure electricity is switched off. Remove p.c.b. commissioning link. Replace with the connector attached to the front cover start/stop/flow control switch.

Store commissioning link in a safe place for future use.

4.Ensure side section is in place (see diagram 2). Refit cover using 3 fixing screws. Attach handset to shower hose.

5.A temperature limiter is provided so that the maximum working temperature can be set. The limiter is factory set but can be adjusted depending on incoming water conditions.

The limiter is visible when Temperature Control Knob 'B' is removed (see diagram 14).

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Redring 520M, 520TS installation instructions Electrical, Store commissioning link in a safe place for future use
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520TS, 520M specifications

The Redring 520M and 520TS are advanced electric water heaters designed for efficient and reliable performance in residential settings. These models are known for their compactness and versatility, making them a popular choice for various applications, from domestic use to light commercial installations.

One of the standout features of the Redring 520 series is its rapid heating capability. With a powerful heating element, the 520M and 520TS can provide hot water in a matter of minutes, making them ideal for situations where immediate water heating is required. This ensures that users can enjoy hot water on demand without long waiting periods.

The Redring 520M features a manual thermostat for precise temperature control, allowing users to adjust the water temperature according to their needs. Meanwhile, the 520TS is equipped with an advanced digital thermostat that offers a more intuitive interface and precise temperature adjustments. This added functionality makes the 520TS slightly more user-friendly, particularly for those who prefer a digital display.

In terms of design, both models are compact and space-saving, allowing for easy installation in tight spaces such as under sinks or in utility rooms. Their sleek and modern design also ensures they fit seamlessly into various home decors.

Energy efficiency is a critical consideration in today’s eco-conscious world, and the Redring 520 series doesn't disappoint. Both models are designed to provide efficient hot water delivery, minimizing energy consumption while delivering the performance users expect. The insulation used in these units helps to retain heat, further enhancing their energy-saving capabilities.

Safety features are paramount, and the Redring 520M and 520TS come equipped with multiple protective mechanisms. These include thermal cut-off systems to prevent overheating and pressure relief valves to ensure safe operation even in high-pressure situations.

Overall, the Redring 520M and 520TS represent a blend of innovative technology, efficiency, and user-friendly design. Whether for domestic use or light commercial applications, these models stand out for their reliability and performance, making them an excellent choice for those seeking quality electric water heating solutions. With their impressive array of features, they cater to a wide range of hot water needs, ensuring users can enjoy the comfort of hot water whenever desired.
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