Creda Florida Spa 핸드북 - 페이지 3

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Plumbing

The heater must be connected to the mains cold water supply. This must have a minimum running pressure of 69kPa

(0.7 bar, 10 psi) and a maximum pressure of 690kPa (7.0 bar, 100 psi).

Before connecting the pipe work to the shower, ensure that pipe work is flushed out.

It is recommended that a WRAS (Water Regulations Advisory Scheme) listed isolating valve is fitted to the incoming

mains cold water before the shower unit.

This will allow the unit to be serviced or exchanged wi thout having to turn off the water at the water stop valve.

The heater can be fed from a header tank provided this has a minimum head of 7 metres (23ft).

Ø15mm copper or stainless steel pipe should be used.

To avoid cross threading, DO NOT REMOVE the brass nut from the elbow when positioning the pipe.

If top entry is required, turn the elbow 180° into the required position.

If rear entry is required, treat as top entry with an additional "Yorkshire" elbow (soldered type) for fitting into the rear

channel.

In multiple installations, correct pipe work sizes should be calculated to maintain adequa te flow to each shower.

It is permissible to use a WRAS (Water Regulations Advisory Scheme) approved sealant sparingly whilst avoiding

excess finding its way into the shower operating parts.

With isolating valve connected, flush the pipe work through to remove any particles etc, before making the final

connection to the shower. Blockage in the water ways (particularly the handset and solenoid valve) will prevent the

heater working properly. Note: You may be charged for a service call if it is due to incor rect installation.

The shower is designed to have an open outlet and should only be used with "Creda" recommended fittings.

Do not connect the handset until after the shower front cover and corner section are fitted.

WARNING: DO NOT FIT A TAP ON THE SHOWER OUTLET.

TAKE CARE TO AVOID RESTRICTING THE OUTLET OF THE PRESSURE RELIEF DEVICE

c) Electrical

The electrical installation must be in accordance with the current BS.7671 (IEE Wiring Regulations) , and Part "P" of the

Building Regulations.

The shower is designed for a single phase AC electrical supply. Check the unit rating plate to see which applies.

(* Only applies if external earth impedance is less than 0.35 Ohms)

Rating

Cable Sizes

4.0mm²

6.0mm²

7.2 / 6.6kW

240 / 230V

6.0mm²

10.0mm²

6.0mm²

8.5 / 7.8kW

240 / 230V

10.0mm²

and

6.0mm²

9.5 / 8.7kW

240 / 230V

10.0mm²

10.5 / 9.6kW

240 / 230V

10.0mm²

Remember to upgrade the cable if it runs in thermal insulation in a loft, or for a longer distance.

A means for disconnection in all poles must be incor porated in the fixed wiring in accordance with the wiring rules.

We recommend a ceiling switch mounted in a convenient position.

Cut back cable as in diagram 9. Connect cable to terminal block

making sure that all the retaining screws are VERY TIGHT and

that no cable insulation is trapped under the screws.

Fuse / MCB

Cable Length

21m Max.

32A Type B MCB

35m Max.

27m Max.

40A Type B MCB

45m Max.

27m Max.

40A Type B MCB

45m Max.

12m Max.*

45A BS.1361 fuse

21m Max.*

45A BS.1361 fuse

12m Max.*

How your Creda 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 cylinder (diagram 2)

2. 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 rise and vice versa. The temperature of the water supplied

from the mains can vary considerably throughout the year from 5 to 20°C. This means

that in the winter, flow rate will be less tha n in the summer to achieve the same outlet

temperature. In summer the "HALF HEAT" power setting may give adequate hot water.

3. The heaters are only switched on when sufficient water is flowing.

This is done automatically with a switch which works on water pressure and is indicated by 2 or 3 lights illuminating

depending on knob "A" power selection.

4. The water is turned on and off by the solenoid valve built into the shower. This is switched on by button "B ".

5. The flow of water is automatically held at the level set by the user even though the supply pressure may vary

(See "How to use your shower" note 10).

6. If the water supply falls below a set limit, the pressure switch will operate and switch off the power to the elements.

This is indicated by the middle power setting lights flickering and going out (see "How to use your shower" note 11).

7. As a further safeguard, a thermal cut-out switches the power off if the water temperature climbs ab ove the set limit

and the "OVERHEAT" light will come on.

This cut-out, which gives an audible click, may also operate du e to residual heat when the shower is switched off.

It will reset itself if water is run through the shower for 10 to 20 seconds, and the "OVERHEAT" light will go out.

8. The pressure relief device is to safeguard against abnormal pressure conditions, and provides a level of appliance

protection should an excessive build up of pressure occur within the shower.

IN ORDER TO MAINTAIN THE PERFORMANCE OF YOUR SHOWER,

YOU MUST CLEAN THE SHOWERHEAD REGULARLY.

All water contains particles of lim e-scale, which build up in the showerhead and unit reducing the performance.

It is therefore important to clean the showerhead by simply rubbing the rubber nozzles, or soaking in a proprietary

lime-scale remover and rinsing thoroughly before use.

NOTE: After use it is normal for some water to drip from the showerhead for a few moments.

This inhibits lime-scale build-up over prolonged use.