Kohler Mira Select B14C Manuel utilisateur

11553346-W2-A

Mira Select

Thermostatic Mixing Valve

Installation and User Guide

For SPARES,

ADVICE or REPAIRS

please call us free

on 0800 001 4040

(UK only)

1553346-W2-A

Thank you for choosing a Mira shower. To enjoy the full potential of your new shower, please take

time to read this guide thoroughly, and keep it handy for future reference. Products manufactured

by Kohler Mira Ltd are designed to be safe, provided that they are installed, used, and maintained

in good working order, in accordance with our instructions and recommendations.

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

shower. This guide is also available in digital format from our website or by contacting customer

services.

Type 2 and Type 3 Valves

This product has been certied for use in UK care premises as a Type 3 valve under the

BUILDCERT TMV3 scheme. This product has also been certied as a Type 2 valve under the

BUILDCERT TMV2 scheme. For care* installations refer to the TMV3 requirements manual. This

product also complies with the Water Supply (water ttings) Regulations 1999.

For further information on Type 2 or Type 3 Valves, refer to the TMV2 or TMV3 Requirements

Manual (available to view or download on our website www.mirashowers.com).

*Care applications are aged person facilities, residential care homes, etc. and any other

application where the user is similarly at risk. This product is not suitable for use in hospitals.

The approved designation for this product is listed in the table below. Mira Mixer Showers

covered by this guide:

Introduction

For domestic installations, Mira Showers guarantee the product against any defect in materials

or workmanship for a period of ve years from the date of purchase (shower ttings for one year).

For non-domestic installations, Mira Showers guarantee the product against any defect in

materials or workmanship for a period of one year from the date of purchase.

Failure to follow the instructions provided with the shower will invalidate the guarantee.

For Terms and Conditions refer to the 'Activating Your Free Guarantee and Customer

Service' pages.

Guarantee

6274070 - 6274084

Design Registration

Domestic Heavy Commercial 

Light Commercial Healthcare 

Recommended Usage

Product Code Model Number Colour Type 2 & 3 Designation

B14C Mira Select Valve Only

Satin Chrome HP-SB14C Mira Select Single Outlet

B14C Mira Select Flex

31553346-W2-A

Documentation:

q Warnings and Cautions Guide

q Quick Installation and User Guide

q Installation Template

Pack Contents

x1 q

Mira Select Valve

Box 1

Box 2

Box 3

Component Pack

x2 q

x4 q

x1 q

Mira Single Outlet Shower Fittings

x1 q

x2 q

x2 qx2 q

x1 q

1553346-W2-A

Pack Contents

Mira Select Flex Shower Fittings

x1 q

x2 qx2 q

x1 q

Box 3 Box 4

51553346-W2-A

PLEASE OBSERVE THE FOLLOWING TO REDUCE THE RISK

OF INJURY:

Installing the Shower

1. Installation of the shower must be carried out in accordance

with the instructions by qualied, competent personnel. Read all

instructions before installing the shower.

2. DO NOT install the shower where it may be exposed to freezing

conditions. Ensure that any pipework that could become frozen

is properly insulated.

3. DO NOT perform any unspecied modications to the shower

or its accessories. When servicing only use genuine Kohler Mira

replacement parts.

4. If the shower is dismantled during installation or servicing then,

upon completion, an inspection must be made to ensure all

connections are tight and that there are no leaks.

5. The product may be TMV3 or TMV2 approved. Refer to the

installation guide for information regarding product type and

installation suitability.

Safety Information

WARNING ! This shower can deliver scalding temperatures. For

continued safe operation, follow all instructions, warnings and

cautions contained in this guide and on or inside the shower.

Periodic maintenance may be required to keep the product in

good working order.

The function of a thermostatic mixing valve is to deliver water

consistently at a safe temperature. In keeping with every other

mechanism, it cannot be considered as functionally infallible and

as such, cannot totally replace a supervisor’s vigilance where that

is necessary. Provided it is installed, commissioned, operated,

and maintained within manufacturers recommendations, the

risk of failure, if not eliminated, is reduced to the minimum

achievable.

1553346-W2-A

Using the Shower

6. The shower must be operated and maintained in accordance with

the requirements of the installation and user guides. Make sure

you read all this information fully and understand how to operate

the shower before use. Retain all guides for future reference.

7. DO NOT switch the shower on if there is a possibility that the water

in the shower unit or ttings is frozen.

8. The water supplies to this product must be isolated if the product

is not to be used for a period of time. For example, When away on

holiday. If the product or pipework is at risk of freezing during this

period, they should also be drained of water.

9. Persons (including children) with reduced physical, sensory, or

mental capabilities, or lack of experience and knowledge, can use

the shower if they are given supervision or instruction concerning

the use of the appliance by a person responsible for their safety.

10. Anyone who may have di󰀩culty understanding or operating the

controls of any shower should be attended whilst showering.

Particular consideration should be given to the young, the elderly,

the inrm or anyone inexperienced in the correct operation of the

controls.

11. DO NOT allow children to play with the shower, clean or perform

any user maintenance to the shower or it’s ttings e.g. Handset

and hose.

12. Always check the water temperature is safe before entering the

shower.

13. DO NOT adjust the temperature control rapidly while using the

shower.

14. DO NOT switch the shower o󰀨 and back on while standing in the

water ow. Use caution when altering the water temperature while

in use and always check the temperature before continuing to

shower.

15. DO NOT restrict the water ow from the shower outlet, temporarily

bending the shower hose or blocking the shower head while in use

could cause a hot shot of water to be discharged.

71553346-W2-A

16. When adjusting the handset mode, point handset away from

body and make sure the water temperature has stabilised before

continuing to shower.

17. The showerheads must be descaled regularly and hose checked

for blockage or damage. Blocked showerheads or hose will a󰀨ect

showering performance.

18. DO NOT connect the outlet of the shower to any tap, control

valve, trigger operated handset or showerhead other than those

specied for use with this shower. Only Kohler Mira recommended

accessories should be used.

19. For products with multiple shower outlets, the diverters or on/o󰀨

controls must be regularly operated to ensure the correct operation

of the outlet.

20. This appliance is intended to be permanently connected to the

water supplies and not connected by exible hoses.

If you are unsure about any of these Warnings & Cautions and require

further explanation contact Mira Customer Services.

1553346-W2-A

• Important! This product is not suitable to use with any other pipe sizes.

Thermostatic Shut-down

• For safety and comfort the thermostat will shut o󰀨 the mixing valve within

2 Seconds if either supply fails (achieved only if the blend temperature has a

minimum di󰀨erential of 12°C from either supply temperature).

Specications

Pressures

Maximum Static Pressure 1000 kPa (10 bar)

Maximum Maintained Pressure 500 kPa (5 bar)

Minimum Maintained Pressure

(Gas Water Heater)

100 kPa (1 bar)

(for optimum performance supplies should be

nominally equal)

Minimum Maintained Pressure

(Gravity System)

10 kPa (0.1 bar)

(0.1 bar = 1 Metre head from cold tank base to shower

handset outlet)

Temperatures

Close temperature control 20°C - 50°C

Optimum Thermostatic Control

Range

35°C to 45°C

(achieved with supplies of 15°C cold, 65°C hot and

nominally equal pressures)

Recommended Hot Supply 60°C to 65°C

Minimum Hot Water Supply Tem-

perature

55°C

(Note: The mixing valve can operate at temperatures

up to 85°C for short periods without damage.

However for safety reasons, it is recommended

that the maximum hot water temperature is limited

to 65°C).

Minimum Recommended

Di󰀨erential between Hot Supply

and Outlet Temperature

12°C at desired ow rates

Cold Water Range 1 - 25°C

Plumbing Connections

Hot: Left 15 mm compression tting

Cold: Right 15 mm compression tting

Outlet: Single Outlet = 1/2" BSP Male to exible house

91553346-W2-A

Installation

General

1. Installation of the shower must be carried out in accordance with these

instructions by qualied, competent personnel.

2. The plumbing installation must comply with all national or local water regulations

and all relevant building regulations, or any particular regulation or practice

specied by the local water supply company.

3. Make sure all pressures and temperatures comply with the requirements of the

shower. See ‘Specications’.

4. Full bore/non restrictive servicing valves must be tted in a readily accessible

position adjacent to the shower to facilitate maintenance of the shower.

DO NOT use a valve with a loose washer plate (jumper) as this can lead to a

buildup of static pressure.

5. DO NOT apply excessive force to plumbing connections; always provide

mechanical support when making plumbing connections. Any soldered joints

should be made before connecting the shower.

6. Pipework dead-legs should be kept to a minimum.

7. DO NOT install the shower unit in a position where access for maintenance is

restricted.

8. The shower must be tted to a waterproof, at and even wall surface. The

four screws and wall plugs supplied are suitable for most solid wall installations.

Alternative xing screws for panel structures are not supplied. Use all four xing

points to secure the shower, be sure to use xings appropriate for the chosen

wall structure.

9. Pipework enters the product from the rear through a hole in the wall, provision

must be made to prevent water ingress back into the wall structure.

10. Position the shower unit where the controls are at a convenient height for the

user. Position the showerhead so that the water sprays in line with the bath or

across the opening of a shower cubicle. The installation must not cause the

shower hose to be kinked during normal use.

11. The water supplies to this product should be isolated if the product is not to be

used for a long period of time. If the product or pipework is at risk of freezing

during this period they should also be drained of water.

Suitable Plumbing Installations

The Thermostatic Mixer can be installed with all systems with balanced pressures.

Mixed gravity and mains supplies are not recommended.

1553346-W2-A

12. The position of the shower and shower ttings must provide a minimum air

gap of 25 mm between the showerhead and the spill over level of any bath,

shower tray or basin. There must be a minimum distance of 30 mm between

the showerhead and the spill over lever of any toilet, bidet or other appliance

with a Fluid Category 5 backow risk.

Zone of

Backflow

Risk

30 mm

Minimum

Toilet or Bidet

FC5

Hand Basin

FC3

Bath or Shower

Tray FC3

25 mm

Minimum

25 mm Minimum

Mixer

Shower

Note: For safety, in case minimum air gaps are not achieved this product

is tted with double check valves.

In low pressure installation this will reduce ow.

The check valve in the handset can be removed to achieve improved ow.

However, if removed an alternative hose retaining ring is required. These

are available through Mira Customer Services.

For Fluid Category 5, double checkvalves are not suitable.

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