Mira Vision Dual User manual

1
These instructions must be left with the user
Installation Guide
Mira Vision Dual

2
If you experience any difculty with the installation or operation
of your new shower, then please refer to the Fault Diagnosis section,
before contacting Kohler Mira Ltd.
Our telephone and fax numbers can be found in the back of this guide.
CONTENTS
Introduction................................................................................................3
Products Covered by this Guide...........................................................3
Guarantee ............................................................................................3
Patents and Design Registration..........................................................3
Important Safety Information .....................................................................4
Pack Contents ........................................................................................... 6
Specications ............................................................................................9
Standards and Approvals .....................................................................9
Dimensions.............................................................................................. 11
Installation ...............................................................................................13
General............................................................................................... 13
Important Information Regarding Radio Controlled Devices.............. 13
Use of Flow Regulators with Combination Boilers ............................ 15
Installation Schematic ........................................................................ 19
Position and Signal Test .....................................................................21
Shower Fittings - Ceiling Fed Slide Bar / Showerhead ......................24
Ceiling Fed Deluge Head ......................................27
Rear Fed Slide Bar / Showerhead.......................... 30
Rear Fed Shower Arm and Deluge Head...............34
Wireless Controller ............................................................................36
Commissioning........................................................................................37
Connecting a Second Wireless Controller............................................... 38
Re-Registering ........................................................................................40
Fault Diagnosis........................................................................................41
Maintenance............................................................................................45
Spare Parts .............................................................................................46
Accessories .............................................................................................50
Disposal and Recycling ...........................................................................51
Customer Service....................................................................................52

3
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 Vision Dual Mixer Valve is designed to be used with the Mira Vision
showerhead and ttings.
Products Covered by this Guide
Mira Vision Dual Digital Mixer - High Pressure/Combi Valve
Mira Vision Dual Digital Mixer - Pumped Valve.
Mira Vision Dual Wireless Controller.
Mira 360 Fittings (Ceiling Fed or Rear Fed).
Guarantee
For domestic installations, Mira Showers guarantee the Mira Vision Dual 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 Mira Vision Dual against
any defect in materials or workmanship for a period of one year from the date of
purchase.
For terms and conditions refer to the back cover of this guide.
Recommended Usage
Domestic 
Light Commercial 
Heavy Commercial 
Healthcare 
Patents and Design Registration
Design Registration 001295935
Patents GB: 2 421 297
USA: 7 669 776
Patent Applications WO: 2009/022112
EUROPE: 2 227 647
USA: US-2010 - 0282 326 - A1
CHINA: CNI01918743A
INDIA: 1306/MUMNP/2010
INTRODUCTION

4
IMPORTANT SAFETY INFORMATION
Warning!
Follow all warnings, cautions and instructions contained in this guide, and
on or inside the appliance.
1. THIS APPLIANCE MUST BE EARTHED. ENSURE SUPPLEMENTARY
BONDING COMPLIES WITH THE “REQUIREMENTS FOR ELECTRICAL
INSTALLATIONS”. The Mira Digital Mixer Valve is intended to be permanently
connected to the xed electrical wiring of the mains system. A means for electrical
isolation of the appliance shall be provided in the xed wiring in accordance with
local wiring regulations.
2. 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.
3. Isolate the electrical and water supplies before connecting to the appliance.
4. This appliance must be provided with means for disconnection that is incorporated
into the xed wiring in accordance with the relevant local wiring regulations.
5. Refer to the wiring diagram before making any electrical connections.
6. Mains connections are exposed when the cover of the Digital Mixer Valve is
removed.
7. The Digital Mixer Valve must not be installed where it can become frozen.
8. Make sure that any pipework that could become frozen is properly insulated.
9. In accordance with BS7671 a 30mA Residual Current Device (RCD) should
be included in the electrical circuit. This may be part of the consumer unit or a
separate unit.
10. All pipework must be checked for leaks before the product installation is
completed. The product should be pressurised and both inlet & outlet connections
inspected.
11. If the shower is dismantled during installation or servicing then upon completion
the product must be inspected to ensure all electrical connections are tight and
that there are no leaks.
12. Having completed the installation, make sure that the user is familiar with the
operation of the appliance.
13. DO NOT commission this appliance if water leaks from the unit.
14. Only Mira recommended outlet ttings should be used.
15. Ensure all electrical connections are tight, to prevent overheating.
16. This product is not suitable for areas with high humidity (i.e steam rooms).
Please consult your installer.
17. The water supplies to this product must 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.

5
Caution!
1. Read all of these instructions and retain this guide for later use.
2. The electrical installation must comply to “BS 7671 - 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.
3. The plumbing installation must comply with the requirements of UK Water
Regulations / By-laws (Scotland), Building Regulations or any particular
regulations and practices, specied by the local water company or water
undertakers.
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.
5. Children should be supervised to make sure that they do not play with the
appliance.
6. Anyone who may have difculty understanding or operating the controls of the
shower should be supervised whilst showering.
Particular consideration should be given to:
• The young
• The elderly
• The inrm
• The disabled
• Anyone who suffers from a medical condition that can result in
temporary incapacity (e.g. Epilepsy or blackouts).
• Anyone inexperienced in the correct operation of the controls.
7. The appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, unless they are supervised or have been
given instruction concerning the use of the appliance by a person responsible
for their safety. Sunburn or skin conditions can increase your sensitivity to hot
water. Make sure that you set the shower to a cooler temperature.
8. If any of the following conditions occur, isolate the electricity and water supplies
and refer to section ”To contact us”, in the back cover of this guide.
• If the cover is not correctly tted and water has entered the appliance case.
• If the case is damaged.
• If the appliance begins to make an odd noise, smell or smoke.
• If the appliance shows signs of a distinct change in performance, indicating
a need for maintenance.
9. DO NOT operate if water leaks from the appliance.
10. DO NOT operate this appliance if it is frozen. If suspected of being frozen, isolate
and contact us for advice.

6
PACK CONTENTS
Digital Mixer Valve
Wireless Controller
Tick the appropriate boxes to familiarise yourself with the part names and to conrm
that the parts are included.
Documentation
1 x Wireless Controller User Guide
1 x Showerhead User Guide
1 x Customer Support Brochure
2 x Fixing Screws
2 x Wall Plugs
2 x Push-Fit Isolators
3 x AA Batteries
OR
Digital Mixer -
High Pressure / Combi Valve
2 x Outlet
Connector
Digital Mixer - Pumped Valve
1 x Wireless
Controller
1 x Wall Plate
1 x Battery Cover
3 x Fixing Screws
3 x Wall Plugs
1 x Orange Flow Regulator
( HP / Combi valve only)
1 x Green Flow Regulator
( HP / Combi valve only)

7
Ceiling Fed Fittings
2 x Ceiling
Plate
2 x Elbow Kit
2 x Extension
1 x Slide Bar
Assembly
2 x Hex Screws
2 x Wall Plugs
2 x 45 mm Screws
1 x Hex Key
2 x 70 mm Screws
1 x Installation Template
(not shown)
1 x Ceiling
Mount Plate
1 x Brazed
Pipe
1 x Showerhead
2 x Rubber
Washers
1 x Hose
1 x Deluge
Head
1 x Plastic Pipe
2 x Brackets
1 x Ceiling Plate
Component Pack
2 x Spacers

8
Rear Fed Fittings
2 x End Plugs
2 x Brackets
1 x Showerhead
1 x Slide Bar
Assembly
2 x Rubber Washers
1 x Hose
1 x Right Angle
Connector Shroud
1 x Right Angle
Connector (RAC) Kit
1 x Installation Template
(not shown)
2 x Hex Screws
2 x Wall Plugs
2 x 45 mm Screws
1 x Hex Key
1 x Deluge Head
1 x Backplate
Assembly
1 x Shower
Arm
1 x Concealing
Shroud
1 x Fittings
Pack

9
Standards and Approvals
The Mira Vision Dual complies with all relevant directives for CE marking. The
Mira Vision Dual is a type 1 electronic, independently mounted control for surface
mounting.
The Mira Vision Dual is in compliance with the essential requirements of the
R&TTE directive 1999/5/EC. A copy of the declaration of conformity may be
obtained by contacting Kohler Mira Limited, U.K customer services department.
General
Pollution Degree 2
Rated Impulse Voltage 2.5 kV
Suitable for Drinking Not Suitable
Connections 15 mm Compression/Pusht
Mira Digital Mixer Valve High Pressure
Pressures
Maximum Static Pressure 1000 kPa (10 bar) = 100 m max. total head
Maximum Maintained Pressure 500 kPa (5 bar) = 50 m max. total head
Minimum Maintained Pressure 50 kPa (0.5 bar) = 5 m max. total head
Supply Pressure Differential Nominally Equal
Temperatures
Maximum Temperature (factory preset) 45 °C
Maximum Temperature (setting range) 39 °C - 48 °C
Minimum Temperature Thermostatic control down to 30 °C
Full cold also selectable
Hot Water Range 55 °C - 65 °C
Cold Water Range 1 °C - 20 °C
Temperature Stability ± 1 °C at recommended supply conditions
Ambient Temperature 1 °C - 40 °C
Maximum Relative Humidity 95% non-condensing
Flow Rates and Times
Nominal Flow Rates (will vary depending
on inlet maintained pressure and spray
mode)
Max @ 1.0 bar = 16l/min
Min @ 1.0 bar = 5l/min
Electrical
Supply Voltage 230V AC 50 Hz
Maximum Load 20 W
SPECIFICATIONS

10
Mira Digital Mixer Valve Pumped
Pressures
Maximum Static Pressure 100 kPa (1 bar) = 10 m max. total head
Maximum Maintained Pressure 100 kPa (1 bar) = 10 m max. total head
Minimum Maintained Pressure 1 kPa (0.01 bar) = 0.1 m min. total head
Supply Pressure Differential Nominally Equal
Temperatures
Maximum Temperature (factory preset) 45 °C
Maximum Temperature (settable range) 39 °C - 48 °C
Minimum Temperature Thermostatic control down to 30 °C
Full cold also selectable
Hot Water Range 55°C - 65°C
Cold Water Range 1°C - 20°C
Temperature Stability ± 1°C at recommended supply conditions
Ambient Temperature 1°C - 40°C
Maximum Relative Humidity 95% non-condensing
Flow Rates and Times
Flow Rates (will vary depending on inlet
maintained pressure and spray mode)
Max @ 0.01 bar = 16 l/min
Min @ 0.01 bar = 6 l/min
Electrical
Supply Voltage 230V AC 50 Hz
Maximum Load 200 W at 230V AC

11
DIMENSIONS
FOR HIGH PRESSURE / COMBINATION BOILER
PART No. 1796.011
N85K
MANUFACTURED DATE:
KOHLER MIRA LTD.
CHELTENHAM
GL52 5EP
TEL: [phone]
www.mirashowers.co.uk
HOT COLD
POWER: 230V ~ 20W
PROTECTION: IP24
MIN. SUPPLY PRESSURE: 50 kPa (0.5 bar)
MAX. WORKING PRESSURE: 500 kPa (5 bar)
MAX. STATICPRESSURE: 1000 kPa (10 bar) (WRAS)
MAX. SUPPLY WATER TEMP: 65 °C
MOUNTING POSITION
VERTICAL HORIZONTAL
OR
ISOLATE MAINS ELECTRICITY BEFORE
REMOVING COVER!
F14319/1
DUAL OUTLET
DIGITAL MIXER
FOR LOW PRESSURE SYSTEMS
PART No. 1796.010
N85L
MANUFACTURED DATE:
KOHLER MIRA LTD.
CHELTENHAM
GL52 5EP
TEL: [phone]
www.mirashowers.co.uk
POWER: 230V ~ 200W
PROTECTION: IP24
MIN. SUPPLY HEAD: 0.1 m (0.01 bar)
MAX. WORKING HEAD: 10 m (1 bar)
MAX. SUPPLY WATER TEMP: 65 °C
MOUNTING POSITION
VERTICAL HORIZONTAL
OR
ISOLATE MAINS ELECTRICITY BEFORE
REMOVING COVER!
F14318/1
DUAL OUTLET
DIGITAL MIXER
HOT COLD
46 mm
60 mm
60 mm
85 mm
35 mm
68 mm
44 mm
46 mm
130 mm
Digital Mixer Valve
Shower Fittings - Fixed Head Arm
315 mm
239 mm
205 mm 242 mm
394 mm
234 mm 289 mm
315 mm
420 mm
250 mm

12
Shower Fittings - Slide Bar and Showerhead
Shower Fittings - Ceiling Fed Arm
250 mm
600 mm
650 mm
82 mm
150 mm
62 mm
645 mm
Maximum
to ceiling
60 mm Minimum
600 mm Maximum
51 mm

13
INSTALLATION
Important Information Regarding Radio Controlled Devices
• Metal objects such as steel baths or sinks, cold water storage tanks, hot
water cylinders, foil lined plaster board walls, radiators and even thick brick
walls, can all dramatically reduce the radio operational range of any radio
controlled product.
• Interference from other radio signals can dramatically reduce the ability of the
Mira Vision User Interface / digital mixer to communicate. This may include;
mobile phones, radio control boiler thermostats, wireless broadband routers,
radio control toys, cordless phones, remote outdoor weather stations etc.
• Note! Failure to follow these guidelines can result in poor, intermittent or
complete failure to communicate with the digital mixer.
General
The installation must be carried out in accordance with these instructions, and
must be conducted by designated, qualied and competent personnel.
The digital mixer valve may be installed in a loft space, under the bath
or in a convenient cupboard space provided there is enough room for
maintenance (e.g. Removal of digital mixer valve lid). Failure to do so may
result in an inability to carry out any maintenance. Safe and easy access to
the product should be available at all times.
When installing a mixer valve in an area not regularly accessed,
consideration for potential leaks must be taken into account. While such
events are unlikely, it is advisable to periodically check the installation
for traces of water on or around the product. If possible, site the valve in
a location where any leak would be contained or routed to avoid areas
sensitive to water damage.
Isolating valves must be installed to both inlets (supplied) and outlet, close to the
digital mixer valve for ease of maintenance.
Caution! Risk of product damage. The digital mixer valve must be installed
in a dry, ventilated area where it will not freeze.

14
Only install the High Pressure Digital Mixer Valve with a multipoint gas water
heater or combination boiler of a fully modulating design (i.e. where the water
draw-off rate indirectly controls the gas ow rate to the burner).
Typical Suitable Installations:
Mira Vision
Shower Fittings
Deluge Head
Digital Mixer
Valve (HP) Key to Symbols
An expansion vessel must be tted (and regularly maintained) if any form of
backow prevention device is tted, e.g. non-return valve or PRV. This will ensure
that excess expansion or pulse pressures do not damage the product or plumbing
system. The expansion vessel may already be tted within the boiler (check
with the manufacturer) and is in addition to the normally larger central heating
expansion vessel.
Combination
Boiler
1. Instantaneous Multipoint Water Heaters and Combination Boilers
Caution!Riskofproductdamage.DonotttheMiraDigitalMixer-PUMPED
VALVE with Instantaneous Multipoint Water Heaters or Combination Boilers.
Cold
Hot
FORHIGH PRESSURE / COMBINATIONBOILER
PARTNo. 1796.011
N85K
MANUFACTUREDDATE:
KOHLERMIRALTD.
CHELTENHAM
GL525EP
TEL:[phone]
www.mirashowers.co.uk
HOT COLD
POWER:230V ~ 20W
PROTECTION:IP24
MIN.SUPPLYPRESSURE: 50 kPa (0.5 bar)
MAX.WORKING PRESSURE: 500 kPa (5 bar)
MAX.STATICPRESSURE: 1000 kPa (10 bar) (WRAS)
MAX.SUPPLYWATER TEMP: 65 °C
MOUNTINGPOSITION
VERTICAL HORIZONTAL
OR
ISOLATEMAINS ELECTRICITY BEFORE
REMOVINGCOVER!
F14319/1
DUALOUTLET
DIGITALMIXER
Outlet 1 (warm)
Outlet 2 (warm)
Float
Valve
Isolating
Valve
Tempering
Valve
Overow
Indicator
Mini Expansion
Vessel
Pressure Reducing
Valve
COLD HOT

15
Use of Flow Regulators with Combination Boilers
The Mira digital mixer valve can demand hot water quicker than some
instantaneous water heaters/combination boilers can provide, especially in winter
when the mains water is colder. A ow regulator may need to be used to ensure
that the digital mixer valve can deliver a full range of water temperatures. The
table indicates the ow regulator to be tted in the hot water inlet of the Mira
digital mixer valve.
Boiler Rating 24 kW (80,000 Btu/h) 30 kW (100,000 Btu/h) 36 kW (120,000 Btu/h)
Flow Regulator 7 litres/min 9 litres/min Not required
Colour White Green White/Orange -
Use of Warm-up Feature with Combination Boilers
When using the warm-up feature (see User Guide) with the digital mixer valve
supplied via an instantaneous water heater/combination boiler, the user may
experience a brief temperature uctuation. This is caused by the normal operation
of a standard instantaneous water heater/combination boiler whereby the boiler
will turn off when the ow is stopped (as happens after the warm-up sequence
has been completed). Upon restart of the shower, a cold shot will be ushed
through followed by a brief hot shot until the hot water supply has stabilised.
Unscrew hot inlet plastic nuts and remove pipe and seal to gain access to the
checkvalve cartridge and lter.
Use at blade screwdriver to carefully lever cartridge out.
Fit ow regulator in checkvalve cartridge behind lter as shown.
Ret seal, pipe and plastic nut. Plastic nuts require hand tightening only.
Green
Orange

16
COLD
HOT
Packages of this type, tted with a tempering valve can be used. A drop type pressure
reducing valve must be tted (and regularly maintained) if any form of backow
prevention device is tted, e.g. non-return valve, PRV, then an expansion vessel
should also be tted. This will ensure that excess expansion or pulse pressures do
not damage the product or the plumbing system. The expansion vessel may already
be tted externally or internally within the thermal store (check with thermal store
manufacturer).
2. Mains Pressurised Instantaneous Hot Water Shower, Heated
from a Thermal Store
Caution!Riskofproductdamage.DonotttheMiraDigitalMixer-PUMPED
VALVE with Mains Pressurised Systems.
FORHIGH PRESSURE / COMBINATIONBOILER
PARTNo.1796.011
N85K
MANUFACTUREDDATE:
KOHLERMIRALTD.
CHELTENHAM
GL525EP
TEL:[phone]
www.mirashowers.co.uk
HOT COLD
POWER:230V~ 20W
PROTECTION:IP24
MIN.SUPPLYPRESSURE: 50 kPa (0.5 bar)
MAX.WORKINGPRESSURE: 500 kPa (5 bar)
MAX.STATICPRESSURE: 1000 kPa (10 bar) (WRAS)
MAX.SUPPLYWATERTEMP: 65 °C
MOUNTINGPOSITION
VERTICAL HORIZONTAL
OR
ISOLATEMAINS ELECTRICITY BEFORE
REMOVINGCOVER!
F14319/1
DUALOUTLET
DIGITALMIXER
Outlet 1 (warm)
Outlet 2 (warm)
Hot
Cold
Dual Outlet Digital
Mixer Valve (HP)
Mira Vision
Shower Fittings
Deluge Head

17
3. Gravity Fed Showers
Caution!Riskofproductdamage.DonotttheMiraDigitalMixer-HIGH
PRESSURE/COMBIVALVEwithGravityFedSystems.
The shower control must be fed from a cold water storage cistern and a hot water
cylinder providing nominally equal pressures. Pipework layouts and connections
must be such that other draw-offs will not effect water supplies to the shower, shared
supplies may lead to airlocking or water starvation. It is therefore best practice to have
independent hot and cold supplies to the Low Pressure (pumped) Digital Mixer Valve.
MIRADM2 WIRELESS HP/COMBI 1666.009 N85A MANUFACTURED KOHLERMIRALTD. CHELTENHAM GL525EP TEL:[phone] www.mirashowers.com
HOT COLD
POWER:230 VAC 20 W PROTECTION:IP24 MIN.SUPPLYPRESSURE: 50 kPa (0.5 bar) MAX.WORKING PRESSURE: 500 kPa (5 bar) MAX.STATICPRESSURE: 1000 kPa (10 bar) (WRAS) MAX.SUPPLYWATER TEMP: 65 °C POSITIONAPPLIANCE OR
ISOLATEMAINS ELECTRICITY BEFORE
REMOVINGCOVER!
F9001
DIGITALMIXER 2 WIRELESS
cold
coldcold
warm
hot
hot
100 mm from the lowest
level of water in the tank
Cistern
Minimum
230 litres
Mira Vision
Shower Fittings
Deluge Head
1.0 metre minimum
30° - 60°
Air Separation
FORLOW PRESSURE SYSTEMS
PARTNo. 1796.010
N85L
MANUFACTUREDDATE:
KOHLERMIRALTD.
CHELTENHAM
GL525EP
TEL:[phone]
www.mirashowers.co.uk
POWER:230V~ 200W
PROTECTION:IP24
MIN.SUPPLYHEAD: 0.1 m (0.01 bar)
MAX.WORKINGHEAD: 10 m (1 bar)
MAX.SUPPLYWATER TEMP: 65 °C
MOUNTINGPOSITION
VERTICAL HORIZONTAL
OR
ISOLATEMAINS ELECTRICITY BEFORE
REMOVINGCOVER!
F14318/1
DUALOUTLET
DIGITALMIXER
HOT COLD
Dual Outlet Digital
Mixer Valve (Pumped)

18
Shower Installation
Bath Installation
Affected by Metal
Bath / Poor or no
Communication
Shared
Supplies
No
Access
Steel / Cast
Bath
Less than
230 Litres
Incorrect
Cold
Take-off
Incorrect
Hot
Take-off
Air-locking
Pipework
Distance Too Far /
Poor or No
Communication
Less than
230 Litres
Incorrect
Cold
Take-off
Incorrect
Hot
Take-off
Plastic pipework
not rigidly
supported.
Typical Examples of Poor Plumbing and Installation Practices
DO NOT:
• Install the Digital Mixer Valve where it can become frozen
• Position the Digital Mixer Valve where maintenance access is poor
• Install into a system where the cold water cistern holds less than 230 litres
• Install into a system where air locking could occur
• Install the user interface in a position where communication with the Digital
Mixer Valve is poor e.g. mixer valve installed under metal bath, in front of
metal cistern, more than the recommended distance away etc.
• Install the Digital Mixer Valve onto shared water supplies
• Install the Digital Mixer Valve less than 100 mm from the lowest level of water
in the cistern
• Fit plastic pipework unless rigidly supported

19
Installation Schematic
A separate, permanently connected supply must be taken from the ring main
to the appliance through a 3 amp double pole switched fuse spur providing a
minimum 3 mm contact separation gap in each pole.
The use of supply-line or zone strainers will reduce the need to remove
debris at the digital mixer valve. The recommended maximum mesh aperture
dimension for such strainers is 0.5 mm.
Pipework must be rigidly supported to avoid any strain on the connections.
A 30 mA Residual Current Device (RCD) should be included in the electrical
circuit. This may be part of the consumer unit or a separate unit.
Cold Inlet
Isolators
Dual Outlets
Digital Mixer
Valve
3 amp switched
fused spur To Mains
Power Supply
Hot Inlet
Metal pipework must be
earth bonded

20
Mounting on a Vertical Surface
Inlets
Outlets
Inlets
Outlets
Mounting on a Horizontal Surface
Long inlet pipework (dead-legs) should be kept to a minimum to avoid
temperature uctuations.
Supply pipework layout must be arranged to minimize the effect of other
outlet usage upon the dynamic pressures at the digital mixer valve inlets.
To eliminate pipe debris it is essential that supply pipes are thoroughly
ushed through before connection to the digital mixer valve.
The digital mixer valve (which contains the thermostatic mixing valve) may
only be orientated in the positions shown above when mounted on a vertical
or horizontal surface. Failure to do so will compromise the ability of the unit to
fail-safe and deliver constant blend.
If the power supply cable is damaged, it must be replaced by the
manufacturer or a service engineer.
Warning! Turn off the electrical and water supplies before proceeding with
the installation of the appliance. The electricity must be turned off at the
mains and the appropriate circuit fuse electrically isolated, if applicable.
Valve Installation Orientation