rada VR2-CC User manual

1
IMPORTANT
INSTALLER: THIS MANUAL IS THE PROPERTY OF THE
CUSTOMER AND MUST BE RETAINED WITH THE PRODUCT
FOR MAINTENANCE AND OPERATIONAL PURPOSES.
PRODUCT MANUAL
VR2-CC
VR2-RS
VR2-ES

2
CONTENTS
Introduction .............................................................................................3
Description...............................................................................................3
Safety : Warnings ....................................................................................3
Pack Contents .........................................................................................4
Dimensions ..............................................................................................5
Specications ..........................................................................................6
Installation ...............................................................................................9
Rada VR2-CC ...................................................................................10
Rada VR2-RS ....................................................................................12
Rada VR2-ES.....................................................................................14
Maintenance...........................................................................................16
General............................................................................................... 16
Procedure - Changing or Removing the Flow Regulator....................16
Procedure - Changing Spray Plate Angle...........................................17
Spare Parts ............................................................................................18
Rada VR2-CC ....................................................................................18
Rada VR2-RS.....................................................................................19
Rada VR2-ES.....................................................................................20
Accessories ...........................................................................................21
Notes ......................................................................................................22
Customer Care.........................................................................Back Page
If you experience any difculty with the installation or operation of your new
Shower Fittings, 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.

3
INTRODUCTION
Rada Shower Fittings are specied to meet the highest standards of safety,
comfort and economy as demanded by today’s users. All Rada products are
designed, manufactured and supported in accordance with accredited BS EN ISO
9001:2000 Quality Systems.
Product Range (covered by this guide):
The Rada VR2-CC, VR2-RS and VR2-ES are vandle resistant showerheads,
designed for use in all non-domestic applications.
A 9 l/min ow regulator (orange) is tted as standard. Alternatively, a 6 l/min
regulator (grey) is also supplied and can be substituted for further savings in
water and energy consumption.
Rada VR2-RS and VR2-CC
Vandal resistant shower tting with xed spray plate (spray angle can be set
at 10oor 20o from vertical). For connection to concealed pipework with 15 mm
compression ttings (VR2-CC), or 1/2” BSP parallel nipple (VR2-RS).
Rada VR2-ES
Vandal resistant shower tting with xed spray plate (spray angle can be set at
10oor 20o from vertical). For connection to rising surface pipework.
SAFETY : WARNINGS
Rada products are precision-engineered and should give continued superior and
safe performance, provided:
1. They are installed, commissioned, operated and maintained in accordance with
the recommendations given in this manual.
2. Periodic attention is given, as necessary, to maintain the product in good functional
order. Recommended guidelines are given in section: ‘Maintenance’.
3. Safety: 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.
DESCRIPTION
Design Registration 000793401-0017

4
PACK CONTENTS
Tick the appropriate boxes to familiarise yourself with the part names and to
conrm that the parts are included.
Rada VR2-CC
Rada VR2-RS
Rada VR2-ES
 1 x VR Body
1 x Grub Screw
1 x Olive
(VR 2-CC Only)
2 x Wall Plugs
2 x Fixing Screws
 1 x Nut (VR 2-CC Only)
1 x Mounting Bush (ES Version Blanked off)
 1 x 2.5mm Hexagonal Wrench
1 x 3mm Hexagonal Wrench
 1 x 1/2” BSP Parallel Nipple (VR 2-RS)
 1 x L/min Flow Regulator


5
DIMENSIONS
Rada VR2-CC
Rada VR2-RS
Rada VR2-ES
67
70
105
Dimensions in Millimetres

6
SPECIFICATIONS
Important Points:
1. The installation, commissioning and maintenance of this product must be
carried out in accordance with instructions given in this Manual, and must be
conducted by designated, qualied and competent personnel.
2. Installations must comply with all Local/National Water Regulations/Bye-laws
(Scotland), Building and Plumbing Regulations.
3. Rada products are precision engineered and should give continued superior
and safe performance, provided:
- they are installed, commissioned, operated and maintained in accordance
with these recommendations.
- periodic attention is given as necessary to maintain the product in good
functional order. Recommended guidelines are given in the MAINTENANCE
section.
4. Warning! Continued use of this product in conditions outside the limits listed
in this section can severely affect the performance and reduce the effective
service life, and can present potential risk to users.
5. Disinfectants: In applications where system chemical disinfection is practised,
chlorine can be used (calculated chlorine concentration of 50 mg/l [ppm]
maximum in water, per one hour dwell time), at service interval frequency.
Such procedures must be conducted strictly in accordance with the information
supplied with the disinfectant and with all relevant Guidelines/Approved Codes
of Practice. If in any doubt as to the suitability of chemical solutions, refer to
Kohler Mira Limited, or Local Agent.
Normal Operating Conditions:
- daily usage of 1 - 6 hours.
- installation and usage environment not subject to extremes of temperature,
unauthorised tampering or wilful abuse.
Temperature Range: Designed to accept water supplied between 5oC - 65oC.
Pressure Range: Recommended minimum maintained pressure at the inlet
of tting 1.5 bar. Maximum maintained pressure at the inlet of the tting
5.0 bar (with ow regulator tted).
Spray Performance: Minimum ow rate necessary to achieve a fully formed
spray pattern is 2.0 l/min.
Installation Height: Recommended installation hight is 2 metres above the
oor surface.

7
Connections: VR2-CC: 15 mm compression.
VR2-RS: 1/2” BSP Supply.
VR2-ES: Socket with 'O' seal to accept
15mm pipe (push t, bottom entry).
Composition/Manufacture: All materials are corrosion resistant.
Spray Body: Brass: polished chrome nish.
Mounting Bush/Inlet Nipple: Brass.
Spray Plate: Engineering plastic.
Flow Regulator: Engineering plastic.
Strainer: Stainless steel.
Security Kit: Plated mild steel (Optional extra).
Rada Pipe: 15 mm x 700 mm stainless steel (Optional extra).
All screws in contact with water are stainless steel.
Pressure Loss/Flow Rate Curves
With 'VR' spray plate
Pressure Loss / Flow rate Curves
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0.05.0 10.0 15.0 20.0
Flow rate (l/min)
Pressure loss (bar)
With 6 l/min
regulator
With 9 l/min
regulator
Unrestricted

8
Spray Patterns at 9 l/min
VR2 spray plate
0
0.4
0.8
1.2
1.6
2.0
00.4 0.8 1.2
0
0.4
0.8
1.2
1.6
2.0
0.4 00.4
Height of Spray Head (Metres)
10°
Inner
Edge
Height of Spray Head (Metres)
20°
Outer
Edge
Spray Width (Metres)Spray Width (Metres)

9
INSTALLATION
General
Installation must be carried out in accordance with these instructions, and must be
conducted by designated, qualied and competent personnel.
Installations must comply with Water Regulations (Bye-Laws, Scotland), and any
Local Regulations and Building Regulations in force at the time of installation.
Before installation carefully inspect the new xture for any signs of damage.
1. Supply pipes must be ushed to clear debris before connecting the
shower ttings. Layout and sizing of pipework must be such that when
other services are used, pressures do not fall below the recommended
minimum at the shower tting causing the spray pattern to collapse.
2. Avoid a position in which the product could become frozen.
3. Do not t any form of ow control in the outlet pipework if the shower tting is
installed in conjunction with a product that requires the tting to act as a vent
(e.g. an electric shower).
4. Do not use excessive force when making connections.
5. Maintained pressures above 2 bar at the shower tting, could result in excessive
spray forces.
6. All models have a mounting bush, which is secured to the wall with two screws
(wall plugs and screws provided, suitable for standard masonry). The spray
body is retained on the mounting bush by a recessed hexagon-drive grubscrew
(Hexagonal Wrench supplied).
7. The Rada VR2-CC, VR2-RS and VR2-ES may be bolted through the mounting
bush onto the Rada VR Security Kit (optional), which is mounted within the wall
or behind a panel, for extra mounting security.

10
Rada VR2-CC
1. The Rada VR body ts directly onto
a 15 mm pipe projecting through the
wall. Ensure this inlet pipe extends
15mm to 40mm from the nished wall
surface. Remove any burrs from the
end of the pipe.
2. Undo the grub screw on the shower
fitting with the 2.5mm hexagonal
wrench supplied, and remove the
mounting bush.
3. Undo the nut and olive.
4. Slide the mounting bush onto the pipe
and mark the position of the xing
holes.
5. Remove the mounting bush and drill
the two xing holes. Fit the wall plugs
supplied.
Warning! Before drilling make sure
there is no pipework or cabling in
the wall behind the marked hole
positions.
37 mm
ø 6 mm
ø 15 mm
ø 6 mm
Grub Screw
2.5mm Hexagonal
Wrench
Mounting Bush
Olive
Nut
Ensure ‘O’ Seal
Is Fitted
VR Body
15 - 40mm
Finished Wall
Surface

11
6. Secure the mounting bush to the wall
with the xing screws.
7. Slide the olive and nut over the inlet
pipe and screw the nut to the mounting
bush. Ensure the ‘O’ seal is tted to the
mounting bush.
8. Fit the VR body to the mounting bush
and secure with the grub screw with the
2.5mm hexagonal wrench supplied.
Make sure the 'O' Seal is Fitted
Wall Plugs
Fixing
Screws
Outlet
Pipe
Grub Screw
VR Body
2.5mm Hexagonal
Wrench
Ensure ‘O’ Seal
Is Fitted
Mounting Bush

12
Rada VR2-RS
1. The supply pipe from the VR body must
terminate at the wall surface with a 1/2”
BSP female thread. The end of the
tting must be ush with, or below the
nished surface of the wall.
2. Undo the grub screw on the shower
fitting with the 2.5mm hexagonal
wrench supplied, and remove the
mounting bush.
3. Screw the brass nipple into the female
tting, until it projects between 8 and
10 mm from the nished surface of the
wall. If necessary, cut the brass nipple
to the correct length and remove any
burrs.
Brass Nipple
8 to 10mm
Finished Wall
Surface
1/2” BSP Female
Fitting
VR Body
Mounting
Bush
Ensure ‘O’
Seal Is Fitted
Grub Screw
2.5mm Hexagonal
Wrench

13
4. Screw the mounting bush onto the
brass nipple until the back of the
mounting bush is ush with the wall.
5. Mark the position of the two xing
holes.
6. Remove both the mounting bush and
the brass nipple.
7. Drill the two xing holes and t the
wall plugs supplied.
Warning! Before drilling make sure
there is no pipework or cabling in
the wall behind the marked hole
positions.
8. Apply liquid sealant or PTFE tape to
the 1/2" BSP brass nipple. Do not
use paste.
9. Screw the brass nipple back into the
female tting.
10. Screw the mounting bush onto the
brass nipple using a 12 mm A/F
hexagonal wrench (not supplied)
and secure it with the xing screws
provided.
11. Check the ‘O’ seal is fitted to the
mounting bush.
12. Fit the spray body to the mounting
bush and secure with the grub
screw.
ø 15 mm
37 mm
ø 6 mm
ø 6 mm
Mounting Bush
Brass Nipple
Female Fitting
Fixing Screws
VR Body
Ensure ‘O’
Seal Is Fitted
Grub Screw
2.5mm Hexagonal
Wrench
Mounting
Bush

14
Rada VR2-ES
1. Undo the grub screw on the VR body
with the 2.5 mm hexagonal wrench
provided, and remove the mounting
bush.
2. Place the mounting bush on the wall
and mark the xing hole positions.
3. Drill the xing holes and t the wall
plugs supplied.
Warning! Before drilling make sure
there is no pipework or cabling in
the wall behind the marked hole
positions.
ø 6 mmø 6 mm
37 mm
VR Body
Mounting Bush
Ensure ‘O’
Seal Is Fitted
Grub Screw
2.5mm Hexagonal
Wrench

15
4. Secure the mounting bush to
the wall.
5. Ensure the ‘O’ seal is tted
to the mounting bush. Fit the
spray body to the mounting
bush and secure with the grub
screw.
6. Check the 'O' seal is tted in
the shower tting inlet hole.
7. Ensure there are no burrs
or sharp edges on the ends
of the 15 mm inlet pipe and
t the inlet pipe to the spray
body.
Inlet Hole
Rising Inlet
Pipe
Ensure ‘O’ seal is
tted in the inlet
hole
VR Body
2.5mm Hexagonal
Wrench
Grub Screw
Mounting Bush
Ensure ‘O’
Seal Is Fitted

16
General
Rada products are precision engineered and should give continued superior and
safe performance, provided:
1. They are installed, commissioned, operated and maintained in accordance with
our recommendations
2. Periodic attention is given as necessary to maintain the product in good
functional order.
Maintenance
Maintenance must be carried out in accordance with these instructions, and
must be conducted by designated, qualied and competent personnel.
Warning! Many household and industrial cleaning products contain mild
abrasives and chemical concentrates, and should not be used on polished, chromed
or plastic surfaces.
Use only silicone based lubricants with this product.
All models include a removable mesh strainer which protects the ow regulator
and spray plate from debris. This will need periodic cleaning, dependent upon the
cleanliness of the supplies. The spray cartridges are removable for cleaning (for
extra security, the xed spray plate can only be removed using the Hexagonal
Wrench provided), and will require periodic descaling, dependent upon the hardness
of the water supplies.
When ordering spare parts, please state product type, i.e. Rada VR2-CC,
Rada VR2-RS or Rada VR2-ES and identify part name and number. Refer to
section:'Spare Parts'.
MAINTENANCE
Procedure - Changing or Removing the Flow Regulator
1. Use the 3 mm A/F Hexagonal Wrench (supplied) with the VR body and remove
the screw at the centre of the spray plate, remove the spray plate.
2. Use a 12 mm A/F Hexagonal Wrench (not supplied) and unscrew and remove
the ow regulator from the shower tting (refer to illustration).
3. Remove or replace the ow regulator.
4. Assemble the restrictor/strainer and spray plate in the reverse order of
removal.
Note! Do not overtighten the spray pplate retaining screw.
Note! Fit the 'O' seal on to the spray plate.

17
10° 20°
Spray Plate
VR Body
Regulator (Orange - 9 l/min
Grey - 6 l/min)
Use a 12 mm A/F
hexagonal wrench to
remove the housing.
Housing
Use a 3mm A/F hexagonal wrench
to remove the screw.
Fit the 'O' seal on
to the the spray
plate.
Direction of Water Flow
Plastic Washer
Strainer
The position
of the arrow
on the spray
plate indicates
10o spray
angle.
The position
of the arrow
on the
spray plate
indicates 20o
spray angle.
Procedure - Changing Spray Plate Angle
1. Use the 3 mm A/F Hexagonal Wrench (supplied) with the VR body and remove
the screw at the centre of the spray plate. Remove and rotate spray plate
through 180o to give the minimum angle spray of 10o.
2. Assemble the spray plate in the reverse order of removal.
Note! Do not overtighten the spray plate retaining screw.
Note! Fit the 'O' seal on to the spray plate.

18
SPARE PARTS
Rada VR2-CC
441.66 Mounting Bush
618.22 Grub Screw
857.33 9 l/min Flow Regulator Assembly (with orange restrictor)
857.34 6 l/min Flow Regulator Assembly (with grey restrictor)
1652.015 Spray Plate Chrome
1652.016 VR Squared Seal Pack
1652.016
441.66
618.22
857.33
or
857.34
1652.015

19
Rada VR2-RS
090.27 Mounting Bush
555.96 Nipple
618.22 Grub Screw
857.33 9 l/min Flow Regulator Assembly (with orange restrictor)
857.34 6 l/min Flow Regulator Assembly (with grey restrictor)
1652.015 Spray Plate Chrome
1652.016 VR Squared Seal Pack
090.27
857.33
or
857.34
618.22
1652.015
555.96
1652.016

20
Rada VR2-ES
090.27 Mounting Bush
618.22 Grub Screw
857.33 9 l/min Flow Regulator Assembly (with orange restrictor)
857.34 6 l/min Flow Regulator Assembly (with grey restrictor)
1652.015 Spray Plate Chrome
1652.016 VR Squared Seal Pack
1652.015
857.33
or
857.34
618.22
090.27
1652.016