Mira vigour User manual

1
Manual
These instructions are to be left with the user
POWER SHOWER
MANUAL
Installation and User Guide

2
CONTENTS
Introduction .............................................................................................3
Patents ................................................................................................. 3
Important Safety Information .................................................................3
Warning! ............................................................................................... 3
Caution! ................................................................................................ 4
Pack Contents ......................................................................................... 5
Dimensions ..............................................................................................6
Specications ..........................................................................................7
Installation Requirements ...................................................................... 8
Installation ...............................................................................................9
General................................................................................................. 9
Electrical............................................................................................... 9
Plumbing ............................................................................................10
Commissioning .....................................................................................17
Operation ...............................................................................................18
Fault Diagnosis......................................................................................19
Fault Diagnosis - User Maintenance ..................................................19
Fault Diagnosis - Installer Maintenance .............................................20
Maintenance...........................................................................................22
Cleaning ............................................................................................. 22
Handset .............................................................................................. 22
Notes ......................................................................................................23
Notes ......................................................................................................24
Notes ......................................................................................................25
Spare Parts ............................................................................................ 26
Customer Service..................................................................................28

3
The Mira Vigour Manual Power Shower is an all-in-one power shower with an integral
mains voltage pump, and separate controls for ow and temperature. It features a
15 mm dual entry push-t manifold which supports various inlet supply congurations.
The manifold includes inlet lters and check valves.
Designed to be surface mounted, the Mira Manual Power Shower comes complete
with an adjustable spray handset with three settings, exible hose, adjustable slider,
sliding rail, soap tray and bracket.
Patents
Patents GB: 2 340 210
INTRODUCTION
IMPORTANT SAFETY INFORMATION
Warning!
1. Products manufactured by us are safe and without risk provided they are
installed, used and maintained in good working order in accordance with our
instructions and recommendations.
2. THIS APPLIANCE MUST BE EARTHED. MAKE SURE THE SUPPLEMENTARY
BONDING COMPLIES WITH THE “REQUIREMENTS FOR ELECTRICAL
INSTALLATIONS”.
In accordance with the current edition of ‘The Plugs and Sockets etc. (Safety)
Regulations in force at the time of installation, the Appliance is intended to be
permanently connected to the xed electrical wiring of the mains system.
3. DO NOT CONNECT THE APPLIANCE TO A MAINS-FED WATER SUPPLY.
Such a connection will damage the Appliance, and is not covered under the
manufacturer’s guarantee.
4. The Appliance must not be tted where it may be exposed to freezing conditions.
Make sure that any pipework that could become frozen is properly insulated.
5. DO NOT operate the Appliance if it is frozen. Allow the Appliance to thaw before
using again.
6. DO NOT operate the Appliance if water leaks from the unit, maintenance will
be required before the Appliance can be safely used.
7. DO NOT allow the Appliance to be run dry.
8. DO NOT t any form of outlet ow control. Only shower ttings recommended
by Mira Showers should be used.
9. There are no user serviceable components beneath the cover of the Appliance.
Only a competent tradesperson should remove the cover.
10. Turn off the electrical and water supplies before removing the cover. The
electricity must be turned off at the mains and, if applicable, the appropriate
circuit fuse removed.
11. Mains connections are exposed when the cover is removed.

4
12. Moving parts are exposed when the cover is removed.
13. Isolate the electricity and water supplies and refer to “To contact us”, on the
back page of this guide, if any of the following conditions occur:
The cover is not correctly tted and water has entered the case•
The case is damaged•
The Appliance begins to make an odd noise, smell or smoke•
The Appliance shows signs of a distinct change in performance, indicating•
a need for maintenance
The Appliance is frozen•
14. Make sure all electrical connections are tight, to prevent overheating.
Caution!
1. Read all of these instructions and retain this guide for later use.
2. Pass on this guide in the event of change of ownership of the installation site.
3. Follow all warnings, cautions and instructions contained in this guide.
4. Follow all warnings, cautions and instructions contained on or inside the
appliance.
5. The electrical installation must comply with the “Requirements for Electrical
Installations” commonly referred to as the IEE Wiring Regulations, or any
particular regulations and practices specied by the local electricity supply
company, in force at the time of installation. The installation should be carried
out by an electrician or contractor who is registered with, or is a member of an
association such as:
National Inspection Council for Electrical Installation and Contracting•
(NICEIC), throughout the UK
The Electrical Contractors Association (ECA), England and Wales•
The Electrical Contractors Association of Scotland (ECAS)•
6. The plumbing installation must comply with Water Supply Regulations/Bye-laws
(Scotland), Building Regulations or any particular regulations and practices,
specied by the local water company or water undertakers. The installation
should be carried out by a plumber or contractor who is registered with, or is a
member of an association such as:
Institute of Plumbing (IOP), throughout the UK•
National Association of Plumbing, Heating and Mechanical Services•
Contractors (NAPH & MSC), England and Wales
Scottish and Northern Ireland Plumbing Employers’ Federation (SNIPEF), •
Scotland and Northern Ireland
7. 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 the young, the elderly, the inrm, or anyone inexperienced in the
correct operation of the controls.
8. When the 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.

5
PACK CONTENTS
 Tick the appropriate boxes to familiarise yourself with the part names and to
conrm that the parts are included.

 1 x Manual Power Shower
 4 x Case Inserts
 1 x Flow Control Knob
 1 x Temperature Control Knob
 1 x Temperature Indicator Trim
 1 x Push-Fit Release Tool
 3 x Rubber Wall Plugs
 3 x Rubber Feet
 3 x Fixing Screws
 1 x Installation and User Guide
 1 x Guarantee Registration Document

6
DIMENSIONS
All dimensions are nominal and in millimetres.
28
28
20
20
130
88
66 80
310
210

7
Electrical
Power Supply: 230 - 240 V at 50 Hz, fused at 3 Amps, via a double pole fused switch
(not supplied) with a minimum contact separation of 3 mm for each contact.
Electrical Connections: Terminal block will accept cable up to 2.5 mm². Minimum
cable size (cross-sectional area) required under normal installation conditions is
1 mm2.
Power Consumption: 150 W maximum
Plumbing Connections
Inlet Connections: 2 x 15 mm Push-t manifold
Outlet Connection: 1/2” BSP male
Operating Parameters
Cold Water Temperature: Maximum inlet temperature 30 °C
Hot Water Temperature: Maximum inlet temperature 65 °C
Warning! For safety reasons set the maximum temperature of the stored hot water
to 65 °C or less. Such temperatures are considered sufcient to meet all normal
requirements and will minimise the deposition of scale in hard water areas.
Operating Pressure
Minimum maintained pressure: 1.0 kPa (0.01 bar) or 100 mm head of water
Maximum maintained pressure: 50 kPa (0.5 bar)
Maximum static pressure: 100 kPa (1 bar) or 10 m head of water
Duty Cycle: The Mira Vigour Manual Power Shower pump is now continuously rated.
The motor is tted with a self-resetting thermal trip, designed to operate if motor
temperatures become too high due to abnormally high supply voltages.
Noise: The acoustic noise from the pump motor has been reduced with the use of
anti-vibration rubber feet and rubber wall plugs. The type of wall the Appliance is
xed to will also affect the perceived noise level, solid walls will provide a quieter
operation.
Standards
The Mira Vigour Manual Power Shower complies with all relevant directives for
CE marking.
SPECIFICATIONS

8
Gravity Fed System - The shower MUST be fed from a cold water cistern and hot
water cylinder providing nominally equal pressure.
INSTALLATION REQUIREMENTS
25 mm Min
Cistern
30° - 60°
90°
Service Valve
10 m Maximum
80 mm Minimum
Vent
Pipe
Other Hot Draw Offs
Hot
Cold
Hot Water
Tank
60°C
1 m Head
Minimum
Minimum
Ø 22 mm

9
INSTALLATION
General
1. Do not take risks with plumbing or electrical equipment.
2. Do not install the shower unit in a position where it could become frozen.
3. Isolate electrical and water supplies before proceeding with the installation of
the shower unit.
4. The shower unit must be fed from a cold water storage cistern and hot water
cylinder with equal pressures. The shower unit must not be connected to a mains
cold water supply, unvented high pressure systems or multi-point/combination
gas water heaters.
5. The installation must be carried out by a competent installer.
6. Decide on a suitable position for the shower unit (minimum distance of 200 mm
from the ceiling to allow for the tting and removal of the cover). The position of
the appliance and the shower ttings must provide a minimum gap of 25 mm
between the spillover level of the shower tray/bath and the handset, to prevent
backsiphonage.
7. Avoid layouts where the hose will be sharply kinked. This may reduce the life
of the hose.
8. The shower unit is designed for surface mounting only and must not be recessed
into any wall or cavity, or tiled up to, as this prevents air circulating to the rear
of the unit.
Electrical
1. The shower unit 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 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).
2. Power supply cable must have a minimum cross sectional area of 1 mm².
3. Power supply must be 230-240 V at 50 Hz. The isolating switch must be double
pole switched, fused at 3 Amps, with at least a 3 mm contact separation gap to
each pole.
4. Do not turn the electrical supply on until all plumbing connections have been
made and the shower unit has been commissioned as the unit must not be
operated dry.
5. A 30 mA RCD (residual current device) must be tted. This may be part of the
consumer unit or a separate unit.
6. Fuses do not give personal protection against electric shock.

10
Plumbing
1. A minimum storage capacity of cold water of 230 litres (50 gallons) is required
to provide adequate showering time. Insufcient storage may result in the pump
being run dry.
2. Layout and sizing of pipework must be such that nominally equal inlet supply
pressures are achieved and the effects on the shower performance of other
draw-offs are minimised. Make sure the shower unit is the rst draw-off from
the water supply.
3. Avoid routing the high level hot feed pipe upward to the same level as the cold
tank e.g. into loft space, as air locks may result.
4. Do not solder supply pipework connected to the shower unit as heat transfer
may damage plastic components.
5. Do not use jointing compounds on the shower unit joints, they may cause
damage to the mechanism inside.
6. Do not insert ngers into the push t connections.
7. The supply pipe ends must be free from burrs, as these will damage the push
t seals.
8. Do not use stainless steel piping for inlet pipework.
9. If plated tubing is used for inlet pipework remove the plating from the last 25 mm
of the tube to make sure of a good seal.
10. 15 mm polythene plastic pipe suitable for hot water may be used to supply the
shower unit, but internal pipe supports must be used.
11. Supplies must be thoroughly ushed to remove any debris before connecting
the shower unit.
12. Fit non-restrictive (free-owing) isolating valves in the inlet pipework to the
appliance. Make sure isolating valves can be accessed easily.

11
Warning! Do not x the shower unit to the wall until plumbing and electrical
installations have been completed.
1. Decide on a suitable location for
the shower unit avoiding buried
cables and pipes. The unit should be
positioned at a height convenient for
all the family (at least 200 mm below
the ceiling to allow for the tting and
removal of the unit cover).
The handset should spray away from
the shower unit, either down the
centre line of the bath or across the
shower cubicle opening. Make sure
that when the hose retaining ring
is placed on the lowest position on
the slide bar, the handset does not
fall below the minimum clearance
gap between the bath or shower tray
spillover level of 25 mm.
2. Hot and cold inlet supply connections
are:
Hot – Left Cold – Right
Run the hot and cold water supply
pipes at 28 mm centres, make sure
that the pipe ends project 30 mm into
the inlet manifold.
Warning! Supply connections must
not be connected in reverse.
Caution! Do not use stainless steel
piping for inlet pipework.
Caution! If the pipework is chrome
plated remove all traces of chrome
from the connecting surfaces. If the
chrome is not removed then the
inlet manifold collets will not grip the
supply pipe.
25 mm Minimum
Spillover level
Hose Retaining Ring
All dimensions in millimetres
Miniature Trunking
275
28
30
30
H C

12
3. Make sure that the end of the supply
pipework is cut squarely and is free
from burrs, which will damage the
inlet manifold seals.
Chamfer the end of the pipe to assist
insertion into the tting and prevent
the ‘O’ seal tearing.
Warning! Do not insert ngers into
the push-t connectors as this can
result in injury.
Caution! Thoroughly flush the
incoming hot and cold water supply
pipes to remove debris before
connecting the shower unit.
4. Run the electrical supply cable in
surface mounted miniature trunking
(not supplied). Allow sufcient cable
to connect to the terminal block
(approximately 275 mm). Strip back
approximately 30 mm of outer cable
insulation.
5. Loosen the three cover securing
screws and remove the shower unit
cover.
Note! The cover securing screws
are captive and should not be
unscrewed fully from the unit case.
6. Insert the push-fit release tool
between the ange of the blanking
plug and the inlet manifold collet
and lever the plugs outward. Whilst
holding back on the collet, pull out
the appropriate blanking plug by
hand.
Chamfer
Trim the thinned section of
the case covering the cable
channel.
Push-t
Release Tool
Blanking Plug
Inlet Manifold
Collet
Securing
Screws
Securing Screw

13
7. Temporarily locate the shower unit.
8. Position the shower unit on the wall
and mark the three xing points.
Note! Installers may wish to obtain
alternative proprietary cavity xings
for dry lined, stud partition or dry
partition wall structures.
9. Use the push-t release tool to push
the grey collars into the manifold to
release the shower unit from the
supply pipes.
Warning! Make sure there are no
buried cables or pipes near the xing
points before drilling.
10. Drill 9.5 mm holes and t the wall
plugs supplied.
11. Cut away and trim the thinned
section at the top or bottom of the
case to allow the electrical supply
cable to run down the rear of case.
Fixing Points

14
12. Fit the three rubber feet into the
recesses in the rear of the case
as shown. The feet will reduce the
noise transmitted by the power
shower through the wall.
Warning! Blanking plates should be
tted to stop water ingress into the
inside of the unit.
13. Fit the blanking plates to the unit
case in the following manner.
For Top Inlet Pipework
For Rear Inlet Pipework
For Bottom Inlet Pipework
Rubber Feet
Fit the full blanking
plates to the top
and bottom of the
case.
Fit the full blanking
plate to the bottom
of the case.
Fit the half
blanking plate
to the top of the
case.
Fit the half
blanking plate to
the bottom of the
case.
Fit the full blanking
plate to the top of
the case.

15
14. Locate the shower unit on the inlet
supplies and push the inlet manifold
onto the pipework until resistance is
felt.
DO NOT FORCE!
Note! PTFE tape or liquid jointing
compound must not be used and is
not required to assist connection.
15. The inlet manifold collet and ‘O’
seals will seal automatically.
Warning! The shower unit must
be fixed to the wall at all three
xing points. The xing holes are
elongated to assist in vertical and
horizontal alignment.
16. Screw the shower unit to the wall
using either the wall screws supplied
or alternative xings depending on
the wall structure.
Do not over tighten!
Make sure that the electrical supply
cable is correctly seated in the
channel in the back of the case.
17. Connect the live, neutral and earth
conductors of the electrical supply
cable to the terminal block in the
following manner.
L - Live terminal block
N - Neutral terminal block
- Earth terminal block
The earth supply cable must be
sleeved and make sure that all the
terminal connections are tight and
that no insulation is pinched.
18. Make sure the ow control gear drive
is set to the OFF position. Turn the
gear wheel anticlockwise until the
gear drive microswitch emits a click
noise to indicate the gear drive is in
the OFF position.
Gear Wheel

16
19. Ret the unit cover and secure with
the three cover securing screws.
20. Insert the ow control knob in the
OFF position.
21. Insert the temperature indicator trim
and the inner temperature control
knob.
22. The manual power shower will now
require commissioning, refer to
COMMISSIONING.
23. Install the shower ttings, refer to the
instruction manual supplied with the
ttings. Inner
Temperature
Control Knob
Temperature
Indicator Trim
OFF Position

17
COMMISSIONING
The unit must not be run dry. Before proceeding any further with the installation the
shower unit must be commissioned.
1. Connect the exible hose to the outlet
of the shower unit.
Caution! Do not over tighten.
2. Turn on the water supplies and check
for leaks.
3. Switch on the electrical supply.
4. Tu r n t h e o u t e r f l o w c o n t r o l
anticlockwise to full ow.
5. Rotate the inner temperature control
anticlockwise to check the hot supply
and clockwise to check the cold
supply.
6. Turn the outer ow control clockwise
to the OFF position.
7. T h e s h o w e r u n i t i s n o w
commissioned.
Inner
Temperature
Control
Temperature Indicator
CoolerWarmer
Outer Flow Control
Maximum
Flow Position
Outer Flow Control
Off Position
Hose Washer
Hose

18
OPERATION
1. Turn the outer ow control knob until the
desired ow of water is obtained. The
ow of water will increase the further
the control is turned anticlockwise.
2. Turn the inner temperature control knob
anticlockwise for warmer water and
clockwise for cooler water.
3. Turn the outer ow control knob fully
clockwise to stop the ow of water.
Warning! The shower is a manual mixing shower which can select water
temperatures from FULL HOT to FULL COLD. If the temperature control knob is
turned anticlockwise fully the shower will deliver water at the same temperature as
the stored hot water temperature (this will be the same temperature as the hot tap
water temperature).
Note! The shower is a manual mixing shower. The showering temperature will
change if the incoming water temperature changes. Therefore incoming water
supply temperatures must remain constant if a stable showering temperature is to
be achieved.
Inner
Temperature
Control Knob
CoolerWarmer
Outer Flow Control
Outer Flow Control
Off Position

19
FAULT DIAGNOSIS
Fault Diagnosis - User Maintenance
The appliance is fully performance tested after assembly. Providing it has been
correctly installed and is operated as advised, difculties should not arise. In the
unlikely event that you experience problems with your appliance then the following
procedure will enable you to undertake basic fault nding before contacting the
person responsible for installing your shower.
Malfunction Cause Remedy
The shower
temperature is
too cold.
The hot water cylinder
temperature is less than
12 °C above the shower
temperature.
Adjust the cylinder
temperature. Note! It is
recommended that stored
water temperatures does not
exceed 65 °C.
The blend
temperature is
unstable.
The spray plate is blocked.
The inlet lters are blocked.
The isolating valve is
partially closed.
Faulty plumbing system.
Clean the spray plate. Refer
to the instruction manual
supplied with the shower
ttings.
Contact your installer.
Open the isolating valve.
Contact your installer.
The pump does
not operate.
Electrical supply failure.
PCB failure.
Potentiometer failure.
The motor overheated and
the thermal switch operated.
Contact your installer.
Contact your installer.
Contact your installer.
If the thermal switch operates
repeatedly, contact customer
service for further advice.
Low or no water
ow.
Isolating valves are closed.
Inlet lters blocked.
Check the isolating valves
are tted incorrectly.
The appliance is sited above
cold water storage cistern.
Faulty plumbing system
(airlock).
Open the isolating valves.
Contact your installer.
Contact your installer.
The appliance is not
suitable for negative head
installations.
Refer to INSTALLATION
REQUIREMENTS.
Contact your installer.

20
Fault Diagnosis - Installer Maintenance
The Manual Power Shower is one part of an entire plumbing system. The tting of a
pump places additional requirements on the plumbing system. Some systems may
require plumbing modications to allow them to cope with higher ow rates.
Providing the Manual Power Shower has been correctly installed and is operated
as advised, difculties should not arise. Fault diagnosis and maintenance must be
carried out by a competent person for whom the fault diagnosis table is provided.
In the event of any of the following tests failing, re-check as appropriate before
contacting the Customer Support Department, (refer to the Back Cover).
Malfunction Cause Remedy
The shower runs
for a short time
(30-60 seconds)
then the ow
reduces,
splutters or stops.
Aggravated when
other hot taps
are in use. Less
evident on full
cold.
Air is being sucked down
the vent pipe, as the hot
take off to the shower is too
high up the pipe.
Refer to the plumbing system
diagram in INSTALLATION
REQUIREMENTS for the
correct connection method.
Note t h e 1 m e t r e h o t
takeoff dimension. Consider
increasing the cold feed pipe
to the cylinder to 28 mm
diameter.
The shower
runs cool after
a short time
(1-2 minutes)
then ow
splutters.
Air entering the hot
pipework.
Refer to the plumbing system
diagram in INSTALLATION
REQUIREMENTS for the
correct connection method.
Flow of water
virtually stops
and surges
ON/OFF after a
few minutes.
Insufcient storage of cold
water in cistern (230 litres
recommended).
Increase storage size of the
cold water cistern.
The shower
runs cold after
5-10 minutes.
Insufcient storage of hot
water in cylinder.
Increase the storage size of
the hot water cylinder.
The shower
temperature
is affected by
the use of an
adjacent hot/cold
tap.
Insufciently sized pipework
for both systems to be used
together.
Increase the pipe sizes or
separately feed the shower.
Refer to the plumbing system
diagram in INSTALLATION
REQUIREMENTS.