rada V12 User manual

11145094-W2-D
IMPORTANT
Installer: This Manual is the property of the
customer and must be retained with the product
for maintenance and operational purposes.
PRODUCT MANUAL
V12 THERMOSTATIC
SHOWER VALVE

2
1145094-W2-D

31145094-W2-D
CONTENTS
Introduction .............................................................................................4
Guarantee ............................................................................................4
Patents and Design Registration..........................................................4
Safety : Warnings ....................................................................................5
Pack Contents ......................................................................................... 6
Dimensions ..............................................................................................9
Specications ........................................................................................10
Operating Parameters........................................................................10
Connections .......................................................................................10
Installation .............................................................................................12
General...............................................................................................12
Installation Methods ........................................................................... 13
Rada V12 Exposed Shower Valve .....................................................14
Rear Entry Supplies (rising or falling concealed pipework)................ 14
Rising or Falling Supplies...................................................................16
Rada V12 Concealed Shower Valve ..................................................18
Commissioning .....................................................................................27
Maximum Temperature Setting .......................................................... 27
Reversed Inlet Supplies........................................................................28
Operation ...............................................................................................28
Fault Diagnosis......................................................................................29
Maintenance...........................................................................................30
Spare Parts ............................................................................................ 33
Customer service .................................................................................. 36

4
1145094-W2-D
These products have been certied for use in UK Healthcare premises as Type 3
valves under the BUILDCERT TMV3 scheme. For Healthcare installations refer to
the TMV3 Requirements Manual.
The approved designations for Type 3 Valves are as follows:
Key: High Pressure (HP), Low Pressure (LP)
Model Designation
Rada V12 LP-S, HP-S, HP-SE*
* Economy ow rate designation achieved when 6 l/min ow regulator (supplied)
is tted.
Products included in this manual:
Rada V12 Exposed Shower Valve - 1.1651.001
Rada V12 Concealed Shower Valve - 1.1651.002
Rada V12 - 130 Centres Shower Valve - 1.1651.003
INTRODUCTION
The Rada V12 Shower Valve is a Thermostatic Shower Control with a single control
lever for on/off and temperature control. There is no adjustable ow control. A 9 l/
min ow regulator is supplied for high pressure systems to reduce excessive shower
force. For additional water saving a 6 l/min ow regulator is also included.
The Thermostatic Mixer incorporates a wax capsule temperature sensing unit, which
provides an almost immediate response to changes in pressures or temperature of
the incoming water supplies to maintain the selected temperature. An adjustable
maximum temperature limit is provided which limits the temperature to a safe level.
Inlet Filters are tted to protect the thermostatic cartridge.
Patents and Design Registration
Patents:
GB: 2 291 693, 2 340 210, 2 392 223, 2 392 225, 2 421 297, 2 422 886.
Euro: 1 672 257 DE, FR, GB, IT, NL, SE.
USA: 7 240 850, 7 669 776.
Patent Applications:
Euro: 07015846.4
USA: 2006-0124758-A1, 2010-0219255-A1
Guarantee
We guarantee this product 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.

51145094-W2-D
SAFETY : WARNINGS
Rada thermostatic mixing valves are precision engineered and should give continued
safe and controlled performance, provided:
1. They are installed, commissioned, operated and maintained in accordance with
the recommendations in this guide.
2. For Type 3 installations, valves are only to be used for applications covered by
their approved designations, refer to the TMV3 Requirements Manual.
3. Periodic attention is given, when necessary, to maintain the product in good
functional order.
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. 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. This is particularly important in healthcare
procedures, such as supervised bathing where patients are unable to respond
immediately to unsafe temperatures.
5. Rapid/Excessive movement of the ow and/or temperature controls may result
in momentary unstable blend temperatures.
6. Care is required when adjusting ow or temperature, make sure that the
temperature has stabilised.
7. When this product 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.

6
1145094-W2-D
PACK CONTENTS
Tick the appropriate boxes to familiarize yourself with the part names and to
conrm that the parts are included.
1 x Rada V12 Exposed Shower Valve
1 x ‘O’ Key
2 x Olives
2 x ‘InsuTech’
Compression Nuts
2 x Concealing
Plates
1 x 2.5 mm
Hexagon Key
2 x No 8 x 1 ¼”
Securing Screws
2 x Wall Plugs
Rada V12 Exposed Shower Valve
1 x 6 L/Min Flow
Regulator (Black)
1 x 9 L/Min Flow
Regulator (Orange)
Documentation
1 x Product Manual
1 x Installation Template
1 x TMV3 Requirements Manual

71145094-W2-D
Rada V12 Concealed Shower Valve
1 x 2.5 mm
Hexagon Key
6 x No 8 x 1 ¼” Screws
6 x Wall Plugs
3 x Olives
3 x Compression
Nuts
1 x Rada V12 Concealed Shower Valve
(attached to the Building-in Shroud) 1 x Concealing Plate
2 x M5 x 40 mm Screws
2 x Securing
Brackets
1 x ‘O’ Key
4 x Bracket
Securing Screws
1 x 6 L/Min Flow
Regulator (Black)
1 x 9 L/Min Flow
Regulator (Orange)
Documentation
1 x Product Manual
1 x TMV3 Requirements Manual
1 x Lever Assembly
1 x Grubscrew
1 x Rubber Plug
3 x Flat Faced Inserts

8
1145094-W2-D
Rada V12 130 Centres Shower Valve
Documentation
1 x Product Manual
1 x TMV3 Requirements Manual
1 x ‘O’ Key
2 x Olives
2 x Compression
Nuts
2 x Concealing
Plates
1 x 2.5 mm
Hexagon Key
2 x No 8 x 1 ¼”
Securing Screws
2 x Wall Plugs
1 x 6 L/Min Flow
Regulator (Black)
1 x 9 L/Min Flow
Regulator (Orange)
1 x Rada V12 130 Centres Shower Valve

91145094-W2-D
DIMENSIONS
Rada V12 Exposed Shower Valve
Rada V12 Concealed Shower Valve
111 mm 30 mm
108 mm
Ø 183 mm 60-84 mm 47-71 mm
20 mm
Ø 62 mm
58 mm
Building-in Depth
205 mm
153 mm Centres
109 mm
Ø 56 mm
Ø 62 mm
60 mm
122 mm
35 mm
130 mm
Ø 62 mm
Ø 56 mm
109 mm
122 mm
35 mm
Rada V12 130 Centres Shower Valve

10
1145094-W2-D
SPECIFICATIONS
Operating Parameters
For Type 3 installations, the supply conditions specied in the TMV3 Requirements
Manual take precedence over the operating parameters which follow.
Pressures
Maximum Static Pressure: 10 Bar.
Maximum Maintained Pressure: 5 Bar.
Minimum Maintained Pressure (Gas Water Heater): 1.0 Bar.
(for optimum performance supplies should be nominally equal).
Minimum Maintained Pressure (Gravity System): 0.1 Bar.
(0.1 bar = 1 Metre head from base of cold tank to the outlet of the shower handset).
Temperatures
Factory Pre-set (Blend) Shower: 41°C.
Optimum Thermostatic Control Range: 35°C - 45°C.
(Achieved with supplies of 15°C cold, 65°C hot and nominally equal pressures).
Recommended Hot Supply: 60°C - 65°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 Differential between Hot Supply and Outlet Temperature: 10°C.
Cold Water Range: 5°C - 25°C.
Thermostatic Shut-down
For safety the Thermostat will shut off the Hot Supply Within 2 Seconds if the Cold
Supply Fails.
(Achieved only if the hot supply temperature is greater than 10°C above the set
blend temperature).
Connections
Exposed Mixer:
Supplied: Rear Inlets, Bottom Outlet
Inlets: 15 mm Compression, Hot - Left, Cold - Right.
Outlet: ½” BSP Flat Face/15 mm Compression.
Note! If top outlet is required, then reverse the outlet tting.
Built-in Mixer:
Supplied: Rising Inlets, Top Outlet.
Inlets: 15 mm Compression, Hot - Left, Cold - Right.
Outlet: 15 mm Compression.
If reversed inlets are required refer to section: ‘Reversed Inlet Supplies’.

11 1145094-W2-D
Flow Rates
Typical Flow Rates on Low Pressure Systems (0.1 Bar to 1 Bar) - Rada V12 Shower
Valve only:
*Note! Pressure Loss = Inlet pressure - outlet pressure (measured at valve outlet)
0
5
10
15
20
25
30
35
40
45
50
0.00.5 1.01.5 2.02.5 3.0
Outlet Flow (l/min)
Pressure Loss (bar) *
V12 mixer only
( no flow regulators)
with 6 l/min flow regulator
with 9 l/min flow regulator

12
1145094-W2-D
INSTALLATION
General
Installation must be carried out in accordance with these instructions, and must be
conducted by designated, qualied and competent personnel.
Before commencing, make sure that the installation conditions comply with the
information given in section: ‘Specications’. For Type 3 valves, see also installation
conditions in the TMV3 Requirements Manual.
The installation must comply with any particular regulations and practices, specied
by the local water supply regulations.
1. The Mixer must not be installed in an area where it may freeze.
2. For stud partitions alternative xings may be required.
3. Isolating valves must be installed close to the Mixer for ease of maintenance
(Included with the Rada V12 Concealed Model).
4. Pipework must be rigidly supported and avoid any strain on the connections.
5. Pipework dead-legs should be kept to a minimum.
6. Supply pipework layout should be arranged to minimise the effect of other outlet
usage upon the dynamic pressures at the Mixer inlets.
7. Inlet and outlet threaded joint connections should be made with PTFE tape or
liquid sealant. Do not use oil-based, non-setting joint compounds.
8. To eliminate pipe debris it is essential that supply pipes are thoroughly ushed
through before nal connection.
9. Decide on a suitable position for the
Mixer. The position of the Mixer and
the Shower Fittings must provide
a minimum gap of 25 mm between
the spill-over level of the shower
tray/bath and the handset. This is to
prevent back-siphonage. For further
information on the installation of your
Shower Fittings, refer to the Fittings
Installation and User Guide.
Note! Only use Shower Fittings
recommended by the manufacturer
or supplier. 25 mm
Spill Over
Level
Hose Retaining Ring

13 1145094-W2-D
Rear Entry Supplies Rising or Falling Supplies
Securing Brackets
(Mounting on Front
Face of Wall)
Mounting using
Rear Fixing Points
Installation Methods
Securing Brackets
(Mounting on Rear
Face of Wall)
The Rada V12 Exposed Shower Valve can be installed with rear, rising or falling
supply inlets, top or bottom outlet.
The Concealed V12 Mixer can be installed with rising or falling supply inlets (rising
inlets are illustrated) and top or bottom outlet. The Mixer can be installed using Rear
Fixing Points on the Body, or by using the Securing Brackets (supplied) on the
Front Face of a Solid Wall or Stud Partition, or on the Rear Face of a Laminated
Panel.
The hot water supply must always be connected to the hot inlet (marked with
a red sticker) to ensure the correct operation of the ‘Insutech Technology’.
Note! This technology ensures that all outer surfaces are safe to touch.
The Rada V12 130 Centres Shower Valve can be installed with rear, rising or
falling supply inlets, top or bottom outlet. The shower valve is designed to t onto
exisiting installations where the pipe centres are 130 mm. The installation method
is exactly the same as the Rada V12 Exposed Shower Valve.

14
1145094-W2-D
Rada V12 Exposed Shower Valve
Rear Entry Supplies (rising or falling concealed pipework)
1. Use the Installation Template to mark the positions of the holes for the backplate
and the pipe centres (Not applicable for the V12 130 Centres Model).
Note! Allow a minimum of 150 mm either side of the mixer, to allow access to
the hot and cold Inlet lters for servicing.
40 mm
153 mm
Shower Control
Backplate Fixing Points
(Ø6 mm)
Bend tabs inwards
Use as a support for the spirit level
Bend tabs inwards
Use as a support for the spirit level
Hot Supply Inlet
(Ø15 mm)
Make sure that supply pipes are thoroughly flushed through
before connection to the shower control
Cold Supply Inlet
(Ø15 mm)
153 mm 150 mm
40 mm
150 mm
Ø32 mm x 10 mm depth
for Concealing Plates
153 mm
Apply Silicone
Sealant
Backplate
Concealing Plates
10 mm minimum
between Elbow
and nished wall
surface
32 mm
18 mm from
nished wall
surface
Elbow
2. For solid walls drill the holes for the backplate with a 6 mm drill and insert the
wall plugs (supplied). For other types of wall structure alternative xings may
be required (not supplied).
3. Drill the holes for the supply pipes at 153 mm centres.
4. Recess the wall to allow for the pipe concealing plates, Ø 32 mm x 10 mm
deep.
Note! Depth must be sufcient to prevent the concealing plates fouling on the
plumbing elbows.
5. Fit the supply pipework (Hot - Left, Cold - Right). The pipework must project
18 mm from the nished wall surface at 153 mm centres (use the Installation
Template as a guide).
Note! If the connections are reversed, then turn the valve through 180° to
ensure that the hot supply is connected to the hot inlet and reverse the outlet
fittings as necessary, refer to section: ‘Reversed Inlet Supplies’
Hot
Cold

15 1145094-W2-D
6. Loosen the grubscrews with the 2.5 mm hexagon key (supplied) and remove
the backplate from the mixer.
7. Secure the backplate to the wall using the screws (supplied).
8. Fit the concealing plates.
Note! Apply silicone sealant to the back face of the ange.
Caution! It is essential at this point that the supply pipework is thoroughly
ushed through before connection to the mixer. Failure to do so may result in
product malfunction.
9. Fit the compression nuts and olives onto the pipework.
Note! Make sure that the nuts and olives supplied are used to ensure
correct function of the ‘Insutech Technology’.
10. Align the mixer with the pipework and t onto the backplate.
11. Tighten the compression nuts onto the mixer with a suitable spanner.
Caution! Take care not to damage the chrome surfaces.
Note! Make sure the compression nuts are fully tightened (approx 1 1/2 turns
from nger tight).
12. Tighten the grubscrews to secure the mixer to the backplate.
13. Fit the Shower Fittings, refer to your Shower Fittings Product Manual for
Instructions.
Note! For high pressure systems, a 6 (Black) or 9 (Orange) litre/minute ow
regulator (supplied) can be tted in the outlet connector (refer to illustration).
14. Turn on the hot and cold water supplies and check for leaks.
15. Before using the shower, refer to section: ‘Commissioning’.
Flow Regulator
(for high pressure
systems)
Grubscrew
Hot
Cold
Make sure the plastic
insert is fitted correctly
inside the nut

16
1145094-W2-D
Rising or Falling Supplies
35 mm
1. Loosen the grubscrew on each
elbow using the 2.5 mm hexagon key
(supplied) and rotate the elbow 90° as
required. Retighten the grubscrews.
2. Use the Installation Template to mark
the positions of the xing holes for the
backplate.
Note! Allow a minimum of 150 mm
either side of the mixer, to allow
access to the hot and cold Inlet lters
for servicing.
Wall Plugs
40 mm
153 mm
Shower Control
Backplate Fixing Points
(Ø6 mm)
Bend tabs inwards
Use as a support for the spirit level
Bend tabs inwards
Use as a support for the spirit level
Hot Supply Inlet
(Ø15 mm) Make sure that supply pipes are thoroughly flushed through
before connection to the shower control
Cold Supply Inlet
(Ø15 mm)
153 mm
150 mm 150 mm
40 mm
35 mm
35 mm
35 mm
3. For solid walls drill the holes for
the backplate with a 6 mm drill and
insert the wall plugs (supplied).
For other types of wall structure
alternative xings may be required
(not supplied).
4. For Falling Supplies: Using the
Installation Template as a guide,
mark the pipe positions on the ceiling
and set the centres 35 mm from the
nished wall (refer to illustration).
For Rising Supplies: Using the
Installation Template as a guide,
mark the pipe positions and set the
centres 35 mm from the nished wall.
153 mm

17 1145094-W2-D
Flow regulator
(for high pressure
systems)
Grubscrew
5. Fit the supply pipework (Hot - Left,
Cold - Right).
6. Loosen the grubscrew with the
2.5 mm hexagon key (supplied) and
remove the backplate from the mixer.
7. Secure the backplate to the wall using
the screws (supplied).
Caution! It is essential at this point
that the supply pipework is thoroughly
ushed through before connection to
the mixer. Failure to do so may result
in product malfunction.
8. Fit the compression nuts and olives
onto the pipework.
9. Align the mixer with the pipework and
t onto the backplate.
10. Tighten the compression nuts onto
the mixer with a suitable spanner.
Caution! Take care not to damage
the chrome surfaces.
11. Tighten the grubscrew to secure the
mixer to the backplate.
12. Fit the Shower Fittings, refer to your
Shower Fittings Product Manual for
Instructions.
Note! For high pressure systems,
a 6 or 9 litre/minute ow regulator
(supplied) can be tted under the
hose washer (refer to illustration).
13. Turn on the hot and cold water
supplies and check for leaks.
14. Before using the shower, refer to
section: ‘Commissioning’.
Hot
Cold

18
1145094-W2-D
Rada V12 Concealed Shower Valve
Solid Wall or Stud Partition
(Using Securing Brackets - Mounting off Front Face of Wall)
Outlet Pipe to
Overhead Fittings
Outlet Pipe to RAC Outlet Pipe to RAC
Cold InletHot Inlet
Thermostatic
Mixer
Alternative Pipe
Layouts
60 mm Min 24 mm Max
Finished Wall
4 mm Min
Finished Wall
Finished Wall
Surface
1. Determine the route for the hot and
cold supply pipework and for the
outlet pipework. When connecting
to the BIV Shower Fittings it is
recommended that the outlet be
positioned above and to one side
of the mixer. This is to prevent the
exible hose from obstructing the
shower controls.
2. Unscrew and remove the two shroud
screws and remove the building-in
shroud and chrome trim. Retain the
screws.
3. Determine the position of the mixer
and draw around the building-in
shroud.
4. Mark the routes for the hot and cold
supply pipework at 108 mm centres
(Hot - Left, Cold - Right).
Falling Supplies: For falling supplies
loosen the grubscrew on each elbow
using the 2.5 mm hexagon key
(supplied). Remove the elbows and
install on opposite sides. Retighten
the grubscrews.
Caution! Do not overtighten.
Note! Make sure that the ‘O’ seals
are correctly tted and that the lter
plugs are positioned to the front
(i.e. Hexagonal key facing forward).
5. Mark the route for the outlet pipework.
Note! The outlet elbow should be
sited above the mixer and on the right
or left, as site dictates.
6. Remove the plasterboard and/or
brick work to a minimum depth of
60 mm.
Securing
Bracket

19 1145094-W2-D
Rotate for Suitable
Fixing Point
Chrome Trim
Securing Hole
Chrome Trim
Securing Hole
Countersunk Fixing Hole
Screws
Outlet Pipe to Fittings
Hot Supply
Cold Supply
7. Fit the securing brackets to the mixer
with the bracket securing screws.
Important! Make sure that the
correct holes are used, otherwise the
chrome trim cannot be tted.
Note! The securing brackets can be
rotated for suitable xing points.
8. Make sure that the mixer is level
and mark the positions for the
countersunk xing holes on the wall.
9. For solid walls drill two 6 mm holes
for the wall plugs.
Caution! Do not drill into pipes in the
wall.
10. Fit the wall plugs (supplied) and x
the mixer to the wall with the screws
provided.
Note! For stud partition installations
alternative xings may be required
(not supplied).
11. Connect the hot and cold supply
pipes and tighten the compression
nuts.
Caution! Make sure that the olives
are tted and all pipework is ushed
through before connecting to the
mixer.
12. Connect the outlet pipework, leaving
enough pipe through the wall to
temporarily cap off.
13. Turn on the water supplies and check
for leaks.
Note! Fully open the integral isolating
valves on the inlet elbows.
Note! Securing Brackets shown
in preferred position to allow the
Compression Nuts to be tightened.

20
1145094-W2-D
Minimum nished
wall surface
Maximum nished
wall surface
Finished Wall F9802
Min
Max
14. Attach the building-in shroud to the
mixer using the two shroud screws
removed earlier.
15. Using the ‘Finished Wall Indicator’
on the building-in shroud as a guide,
nish the wall, e.g. tiles.
Caution! Make sure that the nished
wall is within the maximum and
minimum limits and to an even depth
(no greater than 2 mm variation) or
the control components will not t
correctly.
16. Remove the two shroud screws and
discard the building-in shroud.
17. Refit the chrome trim and secure
in position with the two screws
(supplied).
18. Fit the Shower Fittings, refer to your
Shower Fittings Product Manual for
Instructions.
19. Fit the concealing plate and control
assembly, refer to section: ‘Control
Assembly’.