Mira Azora Operation manual

These instructions are to be left with the user

Installation & User Guide

Mira Azora Thermostatic Electric Shower

Contents

Introduction .............................................................................................3

Patents and Design Registration..........................................................3

Important Safety Information .................................................................4

Pack Contents Checklist ........................................................................6

Specications ..........................................................................................7

1. Plumbing ..........................................................................................7

2. Electrical...........................................................................................7

3. Standards and Approvals .................................................................7

Installation Requirements ......................................................................7

1. Plumbing ..........................................................................................7

2. Electrical...........................................................................................9

Installation .............................................................................................10

Installation of Mira Azora....................................................................10

Commissioning .....................................................................................14

User Instructions...................................................................................16

Using your Shower.............................................................................18

Fault Diagnosis......................................................................................19

Maintenance...........................................................................................22

Handset - Cleaning.............................................................................22

Inlet Filter - Cleaning/Renewing .........................................................22

Spare Parts ............................................................................................24

Mira Azora ..........................................................................................24

Accessories ...........................................................................................24

Dimensions ............................................................................................26

Wiring Diagram......................................................................................27

Notes ......................................................................................................28

Notes ......................................................................................................29

Notes ......................................................................................................30

Customer Services................................................................................31

Introduction

Thank you for purchasing a quality Mira product. To enjoy the full potential of your

new product, please take time to read this guide thoroughly. Having done so, keep

it handy for future reference.

The Mira Azora is a thermostatic electric shower with separate controls for power

selection and temperature/ow adjustment. A unique thermostatic valve stabilises

temperature changes caused by water pressure uctuations. These can result from

taps being turned on or off, or a toilet being ushed. An individual light indicates

“START/STOP”.

The Mira Azora comes complete with a set of Mira Energise Shower Fittings.

Mira Azora 9.8 kW

A 9.8 kW 240 V AC (9.0 kW 230 V AC) heater with Mira Energise adjustable spray

handset with four different spray actions (start, soothe, force and eco*). Supplied

complete with exible hose, clamp bracket assembly, slide bar, supports, hose

retaining ring and soap dish. Available in a satin chrome and glass nish.

* The eco setting reduces the water ow to give economical use of water, whilst

still giving an adequate shower performance. This setting performs best with most

gravity, pumped, and mains pressure unvented systems. On electric showers and

some combination boiler systems the economy setting will have no effect, and will

give the same spray action as the start setting.

Patents and Design Registration

Design Registration: 000578463-001-002

Patents: GB: 2341667

Ireland: 82835

Patent Applications: GB: 2 427 460, 2 428 286

Ireland: 2006/0462

If you experience any difculty with the installation or operation of your new Electric

Shower, please refer to ‘Fault Diagnosis’, before contacting Kohler Mira Ltd. Our

telephone and fax numbers can be found on the back cover of this guide.

Important Safety Information

Installation must be carried out in accordance with these instructions, and must be

conducted by designated, qualied and competent personnel.

1. Warning!

Follow all warnings, cautions and instructions contained in this guide, and on

or inside the appliance.

1.1. Products manufactured by us are safe and risk-free, provided that they are

installed, used and maintained in good working order, in accordance with our

instructions and recommendations.

1.2. Isolate the electrical and water supplies before commencing installation. The

electricity must be turned off at the mains and the appropriate circuit fuse

removed, if applicable.

1.3. Mains connections are exposed when the cover is removed.

1.4. Refer to the wiring diagram before making any electrical connections (refer to

the wiring diagram at the back of this guide).

1.5. Make sure that any pipework that could become frozen is properly insulated.

1.6. Having completed the installation, make sure that the user is familiar with the

operation of the appliance.

1.7. Make sure that this guide is left with the user.

1.8. DO NOT commission this appliance if water leaks from the unit or the heater

tank pressure relief valve.

1.9. DO NOT t any form of outlet control (e.g. Trigger handset) as the outlet acts

as a vent for the tank body. Only Mira recommended outlet ttings should be

used.

1.10.Make sure all electrical connections are tight, to prevent overheating.

1.11.Warning! DO NOT operate this appliance if it is frozen. Allow the appliance to

thaw before using. The shower unit must not be tted where it may be exposed

to freezing conditions.

1.12.This product is not suitable for areas with high humidity (i.e steam rooms).

Please consult your installer.

1.13.THIS APPLIANCE MUST BE EARTHED. MAKE SURE SUPPLEMENTARY

BONDING COMPLIES WITH THE “REQUIREMENTS FOR ELECTRICAL

INSTALLATIONS”.

The installation must be in accordance with the current edition of ’The Plugs

and Sockets etc. (Safety) Regulations’ in force at the time of installation, this

appliance is intended to be permanently connected to the xed electrical wiring

of the mains system.

2. Caution!

2.1. Read all of these instructions and retain this guide for later use.

2.2. The electrical installation must comply to “BS 7671 - Requirements for Electrical

Installations”, commonly referred to as the IEE Wiring Regulations - Part 7, or

any particular regulations and practices, specied by the local electricity supply

company.

2.3. The plumbing installation must comply with the requirements of UK Water

Regulations/Bye-laws (Scotland), Building Regulations or any particular

regulations and practices, specied by the local water company or water

undertakers.

2.4. Make sure that you fully understand how to operate this shower and make sure

that it is properly maintained in accordance with the instructions given in this

manual.

2.5. Anyone who may have difculty understanding or operating the controls of any

shower should be attended whilst showering. Particular consideration should

be given to:

2.5.1. The young.

2.5.2. The elderly.

2.5.3. The inrm.

2.5.4. The disabled.

2.5.5. Anyone who suffers from a medical condition that can result in temporary

incapacity (e.g. epilepsy or blackouts).

2.5.6. Anyone inexperienced in the correct operation of the controls.

2.6. Sunburn or skin conditions can increase your sensitivity to hot water. Make

sure that you set the shower to a cooler temperature.

2.7. If any of the following conditions occur, isolate the electricity and water supplies

and refer to ”To contact us”, on the back page of this guide.

2.7.1. If the cover is not correctly tted and water has entered the appliance

case.

2.7.2. If the case is damaged.

2.7.3. If the appliance begins to make an odd noise, smell or smoke.

2.7.4. If the appliance shows signs of a distinct change in performance,

indicating a need for maintenance.

2.7.5 DO NOT operate this appliance if water leaks from this appliance.

2.8. When this appliance has reached the end of its serviceable life, it should

be disposed of in a safe manner, in accordance with current local authority

recycling, or waste disposal policy.

Mira Azora

Pack Contents Checklist

Tick the appropriate boxes to familiarise yourself with the part names and to

conrm that the parts are included.

3 x Wall Plugs

3 x Fixing Screws

Documentation

1 x Installation Template

1 x Installer Checklist

1 x Guarantee Card

1 x Olive

1 x Compression Nut

1 x Mira Azora

Specifications

1. Plumbing

Minimum maintained inlet pressure 70 kPa (0.7 bar).

100 kPa (1.0 bar) recommended for satisfactory operation.

Maximum static inlet pressure 1000 kPa (10 bar).

Minimum static pressure 20 kPa (0.2 bar) to keep the inlet valve closed.

2. Electrical

The Mira Azora 9.8 kW requires a 45 Amp fuse.

The terminal block will accept cable up to 16 mm2 .

3. Standards and Approvals

The Mira Azora complies with all relevant directives for CE marking.

Installation Requirements

1. Plumbing

The appliance is designed to operate with a minimum maintained inlet pressure

of 0.7 bar up to a maximum static inlet pressure of 10 bar.

When installed in very hard water areas (above 200 ppm temporary hardness)

your installer may advise the installation of a water treatment device, to reduce

the effects of limescale formation. Your local water company will be able to

advise the hardness of water in your area.

It is recommended that a non-restrictive (free owing) isolating valve is tted in

the cold water supply pipe to allow the complete maintenance of the appliance.

Do not use a valve with a loose washer plate (jumper) as this can lead to a

build up of static pressures.

The appliance is suitable for installation within the shower area. It is tted with

a pressure relief device and must be positioned over a water catchment area

with the controls at a convenient height for all users.

The appliance must be tted on to a nished at and even wall surface (this

wall surface should be tiled or waterproofed). Do not t the appliance to the

wall and tile up to the case. For safety requirements, an air gap must be left

behind the appliance.

•

Avoid layouts where the shower hose will be sharply kinked. This may reduce

the life of the hose.

A Hose Retaining Ring is supplied to prevent the handset from dropping below

the spill-over level of the bath or shower tray, which could lead to contamination

from back-siphoning. The supplied Hose Retaining Ring should meet the

majority of user requirements for shower installations with exible outlet ttings.

However, there will be occasions when it will not provide a suitable solution.

In these instances an outlet double checkvalve, e.g. a Mira DCV-H, must

be tted. This will increase the required supply pressure typically by 10 kPa

(0.1 bar). Refer to section “Accessories”.

Supply pipework must be ushed to clear debris before connecting to the

appliance.

To avoid damage to the case when soldered ttings are used, pre-solder the

pipework and ttings before connecting them to the inlet connector assembly.

Refrain from applying excessive force when making any connections. Always

provide mechanical support when making the plumbing connections.

The appliance is tted with a brass inlet compression assembly for connecting

to a 15 mm supply pipe from the top, bottom or back. Double checkvalves, if

tted in the inlet supply to the appliance, can cause a pressure build-up, which

could exceed the maximum static inlet pressure and damage the appliance.

•

Isolating Valve

Avoid Sharp Kinks

Convenient height

for all the family

25 mm Min

Bath Shower Tray

Fixed to nished

wall surface

Minimum

200 mm from

ceiling

Hose Retaining Ring

2. Electrical

In a domestic installation, the rating of the electricity supplier’s fuse and the

consumer unit must be adequate for the additional demand. All Mira electric

showers are high power units, it is essential to contact your electricity supplier

to ensure that the supply is adequate for the product.

Voltage drop due to local heavy demand will reduce the shower’s

performance.

The appliance must be earthed by connecting the supply-cable earth

conductor to the earth terminal.

Supplementary bonding: Within the bathroom or shower room, all accessible

conductive parts of electrical equipment and extraneous conductive parts

(metal parts) that are likely to introduce earth potential, must be electrically

bonded to earth using a minimum cable size of 4.0 mm² if the cable is not

mechanically protected, (2.5 mm² if mechanically protected).

The minimum cable size (cross-sectional area) required should be in

accordance with BS 7671.

As a guide only, and in accordance with BS 7671 we recommend close circuit

protection: i.e. 9.8 kW = 45 Amp

It is strongly recommended that a 30 mA Residual Current Device (RCD) is

included in the electrical circuit. This may be part of the consumer unit or a

separate unit.

A separate, permanently connected supply must be taken from the consumer

unit to the appliance through a double-pole switch, which has at least 3 mm of

contact separation. The switch can be a ceiling mounted pullcord type within

the shower room, or a wall mounted switch in an adjacent room.

DO NOT twist the individual cable cores of either the live or neutral conductors,

as this will prevent them from entering the terminal block.

DO NOT exert strain on the terminal block. Ensure that the electrical

connections are tightly screwed down.

DO NOT turn-on the electrical supply until the plumbing has been

completed.

•

Double-pole

Isolating Switch

Consumer Unit

Installation

Installation of Mira Azora

Warning! Turn off the electrical and water supplies before proceeding with the

installation of the Mira Azora. The electricity must be turned off at the mains and

the appropriate circuit fuse removed, if applicable.

Note! An installation template is supplied to help you install the Mira Azora.

Remove the three cover retaining

screws and the cover.

Caution! Handle the glass cover

assembly with care.

Cover

Cover Retaining

Screw

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