Bristan N2 SHCDIV G Mounting instructions

Installation Instructions
and User Guide
Thermostatic Recessed
Dual Control Shower
Valve with Integral
Diverter
Models covered: N2 SHCDIV C,
N2 SHCDIV G, AR3 SHCDIV C,
PM2 SHCDIV C & RS SHCDIV C
Please keep this booklet for future
reference.
Installer, when you have read these
instructions please ensure you leave
them with the user.

Thank you for choosing Bristan, the UK’s leading showers and taps expert. We have
designed this product with your enjoyment in mind. To ensure that it works to its full
potential, it needs to be fitted correctly. These fitting instructions have been created to
give you all of the information you need and, if you need any further help, please do not
hesitate to give us a call on 0844 701 6273.
Important Safety Information …………………………………………………..…………..
General Information ……………………………………………………………………………..
Product Features ………………………………………………………………………………….
Specifications ……………………………………………………………………………………….
Pack Contents ………………………………………………………………………………………
Prior to Installation …………………………………………………………..………............
Installation …………………………………………………………………………………..……….
Shower Valve …………………………………………………..……................
Wall Outlet ……………………………………………………………………………
Operating the Shower ………………………………………………………………….……….
Maintenance ………………………………………………………………………………..……….
Adjusting the Temperature …………………………………………………………………..
Troubleshooting …………………………………………………………………………..……….
Notes ……………………………………………………………………………………………..…....
Guarantee ……………………………………………………………………………………………..
Contents
2 Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.
3
4
5
6
7-10
11
12-14
12-13
14
15
16
17
18-19
20-21
22-23

Important Safety Information
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• Please read these instructions thoroughly and retain for future use.
• All products manufactured and supplied by Bristan are safe provided they are
installed, used correctly and receive regular maintenance in accordance with these
instructions.
• If you are in any doubt about your ability to install this product safely you must
employ the services of an experienced qualified plumber.
• These fittings need to be installed in accordance with, and meet the requirements of
the Water Supply (Water Fittings) Regulations 1999 and Scottish Byelaws 2004.
• Remove all packaging and check there are no missing or damaged parts.
• Before starting any installation please consider the following:
• Before drilling into walls, check that there are no hidden electrical wires, cables or
water supply pipes. This can be checked with the aid of an electronic detector.
• If power tools are used do not forget to: - Wear eye protection
- Unplug equipment after use
• Warning: Before installing the new shower valve it is essential that you thoroughly
flush through the pipework in order to remove any remaining swarf, solder, etc. Failure
to carry out this procedure could cause problems or damage to the workings of the
shower valve.
• Fitting isolation valves to the inlet feeds is required for ease of maintenance.
• Access must be made available to the shower valve / mixer body for maintenance /
servicing purposes.
• Warning: Do not operate this product if you suspect it is frozen. Do not site the
Mixing Valve where it might be subjected to freezing conditions.
• These shower valves must not be modified in any way as this will invalidate the
guarantee.

General Information
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Recommended Usage
Domestic Heavy
Commercial
Light
Commercial Health Care
This product has been tested to the Water Regulations Advisory Scheme (WRAS) and
satisfies the requirements of the Water Supply (Water Fittings) Regulations 1999 and
current bylaws.
For full Installation Requirements & Notes (IRN) please visit www.wras.co.uk/directory.
BS7600 recommends the temperature of stored water should never exceed 65ºC. A
stored water temperature of 60ºC is considered sufficient to meet all normal
requirements and will minimise the build up of lime scale in hard water areas.
If the shower valve is installed at low pressure (tank fed), then the minimum distance
from the highest installed position of the showerhead to the underside of the cold tank
should be at least 1 metre to ensure adequate performance.
Note: Nominally equal (balanced) inlet supply pressures are recommended for optimum
performance.
This shower valve should be installed in compliance with the Water Supply (Water
Fittings) Regulations1999 and the Scottish Bylaws 2004.
If in doubt, contact a registered plumber or your Local Water Authority or the Secretary
of The Institute of Plumbing, address as follows;-
The Institute of Plumbing,
64 Station Lane,
Hornchurch,
Essex,
RM12 6NB
Tel: 01708 472791

Product Features
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1. Two outlet diverter
This outlet allows the user to divert the
flow of water from one water outlet to
another. E.g. Fixed rigid riser or an
adjustable riser.
2. Temperature control
Adjustable temperature control.
Turn the handle clockwise for a cooler
temperature.
Turn the handle anti-clockwise for a hotter
temperature.
Note: The N2 SHCDIV C/G &
RS SHCDIV C can either be installed por-
trait or landscape.
1
2
PM2 SHCDIV C shown

Specifications
Inlet connections: 15mm compression with 150mm between centres.
Minimum working pressure: 0.2 bar
Note: This shower has been designed to deliver a high flow of water on low pressure
systems, however depending on the installation, type of system and shower accessories
used, a higher pressure maybe required to optimise the showering experence.
Maximum working pressure: 5 bar
Maximum static pressure: 10.0 bar
Note: Static pressure is the build up of pressure when the valve is closed.
Supply requirements:
Minimum cold water supply temperature: 5ºC.
Maximum cold water supply temperature: 25ºC.
Maximum hot water supply temperature: 80ºC.
Note: The inlet hot water temperature must be at least 10ºC above the required blend
temperature (e.g. shower temperature 43ºC: minimum hot water temperature 53ºC).
System requirements:
Gravity fed hot & cold (Equal pressures)
Gravity fed hot & mains cold (Differential pressure, maximum ration 5:1)
Unvented systems
Instantaneous water heater (Combination boiler)
Pumped system
Note: When using a pumped system we recommend that an essex flange is used.
Important: Minimum wall cavity depth: 35mm
Min - Max Concealing plate thickness: 45-75mm
For full dimensional drawings please visit www.bristan.com.
6 Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

Pack Contents - N2 SHCDIV C/G
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1. Concealing plate x1
2. Valve body x1
3. Handles x2
4. Shrouds x2
5. Shroud extention screws x1
6. Valve body fixings x2/2
7. Inserts x2
8. Flow regulators x2
9. Filter washers x2
10. Wall outlet x1
2
1
3
4
6
7
8
9
510

Pack Contents - AR3 SHCDIV C
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1. Concealing plate x1
2. Valve body x1
3. Handles x2
4. Valve body fixings x2/2
5. Inserts x2
6. Flow regulators x2
7. Filter washers x2
8. Wall outlet x1
2
1
3
4
6
7
8
5

Pack Contents - PM2 SHCDIV C
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1. Concealing plate x2
2. Valve body x1
3. Handles x2
4. Spline adaptors x2
5. Valve body fixings x2/2
6. Inserts x2
7. Flow regulators x2
8. Filter washers x2
9. Wall outlet x1
2
1
3
4
6
7
8
9
5

Pack Contents -RS SHCDIV C
10 Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.
1. Concealing plate x1
2. Valve body x1
3. Handle x1
4. Lever x1
5. Shrouds x2
6. Shroud extention screws x2
7. Valve body fixings x2/2
8. Inserts x2
9. Flow regulators x2
10. Filter washers x2
11. Wall outlet x1
2
1
3
4
6
7
8
9
5
11
10

Flow Regulators
This shower valve is supplied with a 5 and
7 litre per minute flow regulator loose in
the box which must be fitted if the shower
valve is installed in conjunction with an
instantaneous water heater /
combination boiler.
With both flow regulators fitted and by
turning the water heater / combination
boiler to its hottest setting, will ensure a
sufficiently hot water supply to the shower
valve during winter months (in the UK),
when the mains cold water supply is at its
coldest.
To fit the flow regulators
Remove the inlet elbows ensuring the
filter washer is also removed. carefully
remove the plastic inserts from the valve
inlets and push in the flow regulators. The
7 litre per minute green flow regulator
must be fitted to the cold inlet and the 5
litre per minute yellow flow regulator
must be fitted to the hot inlet.
Place the filter washers back into the
elbow nuts and tighten the nuts fully onto
the outlets.
In the event that this shower valve is not
installed with an instantaneous water
heater / combination boiler, the flow
regulators do not need to be fitted.
Prior to Installation
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Flow
Regulator
Insert
Elbow
Filter
Washer

Installation - Shower Valve
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nut
Elbow
Wall plugs
Fixing
screws
This shower valve is designed for
installations where a recessed valve is
already installed in the wall cavity and is to
be replaced or for new installations.
Before Installation
Flush through the pipework to ensure
removal of any debris. Turn off the mains
water supply and close any isolating
valves.
1. Attach shower valve to wall
Place the shower valve in the required
position and mark the centres of the fixing
holes onto the wall.
Warning: Please check for any hidden
pipes and cables before drilling holes in
the wall.
Drill suitable holes and insert the wall
plugs. Securely attach the shower valve to
the wall using the screws supplied.
2.Connect water supply pipes
Insert 15mm hot and cold water supply
pipes into the inlet connections and
tighten nuts, ensuring the olives are fitted.
3. Plumb in outlets
Insert 15mm pipework into the top outlets
and plumb into the users chosen
products. Ensure the olives are fitted when
tightening the nuts.
Important: Water supplies to the mixer
must be with hot on the left and cold on
the right when viewed from the front.
Outlet

Installation - Shower Valve
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4. Fit concealing plate
Note: The concealing plate can be used
as a template by drawing around the plate
and measuring in by 10mm to give
sufficient clearance.
See page 18 for concealing plate
adjustment.
Run a bead of waterproof silicon sealant
around the inner edge of the concealing
plate.
Slide the concealing plate onto the shower
valve control handles and apply firm
pressure to ensure to silicon sealant
spreads.
5. Fit Handles
Push the spline adaptors (if required) onto
the valve spindles.
Push the handles onto the spline adaptors
and secure by tightening the grub screw
and push-fit the cap into position.
Important: All maintanance and servicing
of the shower valve, thermostatic
cartridge and filters can be done from the
front.
Concealing plate

Installation - Wall Outlet
Fitting the Wall Outlet
There are two methods of fixing the wall
outlet depending on the type of wall:
a: With rear access once wall finished
Fit the rubber washer to the back of the
wall outlet, place the assembly through a
25-30mm hole in the wall and secure with
the backnut ensuring the washer is fitted
between the backnut and the wall.
Connect the wall outlet assembly to the
shower valve outlet.
b: Without rear access once wall finished
Fit a ‘1/2” female connection’ (not
supplied) within the wall cavity and plumb
in from the shower valve. Screw the wall
outlet into the ‘1/2” female connection’
using a suitable thread sealant ensuring
the rubber seal is fitted to the back of the
wall outlet.
Note: The backnut and washer are not
required.
Backnut
Washer
Wall
Rubber
seal
Wall
outlet
Wall
Rubber
seal
Wall
outlet
Female
fitting
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Operating the Shower
Hot
1. Two outlet diverter
This outlet allows the user to divert the
flow of water from one product to another.
Turn the handle one way or the other to
turn the flow of water on to your chosen
product.
To turn the flow of water off turn the
handle back to the centre.
2. Temperature control
Adjustable temperature control.
Turn the handle clockwise for a cooler
temperature.
Turn the handle anti-clockwise for a hotter
temperature.
Cold
1
2
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Maintenance
General Cleaning
Your fitting has a high quality finish and
should be treated with care to preserve
the visible surfaces. All surfaces will wear
if not cleaned correctly, the only safe way
to clean your product is to wipe with a soft
damp cloth. Stains can be removed using
washing up liquid. All bath cleaning
powders and liquids will damage the
surface of your fitting, even the
non-scratch cleaners.
Note: Never use abrasive detergents or
disinfectants or those containing alcohol,
hydrochloric acid or phosphoric acid.
Bristan recommend E-cloth for
cleaning all of our bathroom
& kitchen products. Using just
water, E-cloth gives a smear
free, deep clean by breaking up and
holding dirt, which normal cloths leave
behind. Order through your Bristan
stockist (order code: ECLOTH).
Cartridge Maintenance
We advise that the shower valve is
regularly serviced in hard water areas to
maintain the flow of water.
Isolate both hot and cold water supplies to
the shower valve by either:
• Turning the water supply off at the
mains stopcock or
• Turning off the isolation valves to the
shower valve.
1. Remove the temperature handle and
plastic stop.
Important: Take note of the position
of the plastic stop and handle - They must
be refitted in the same position.
2. Unscrew the cartridge anti-clockwise
and remove from the valve body.
3. Remove the piston and thermostat
assembly and place into a bowl.
Carefully add hot water (just off the boil)
and vinegar to de-scale. Leave in the
solution until the water has cooled and
rinse with clean water.
4. Grease the seals with a silicon grease
supplied by Bristan (part number: SP-495-
0002) and carefully refit.
5. Refit the temperature stop and handle.
Reset the maximum temperature.
Piston
Thermostat
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Unscrew
anti-clockwise
to remove
Tighten
clockwise
to replace

Adjusting the Temperature
Adjusting the Temperature
The shower valve has been factory set to
42ºC with equal (balanced) hot and cold
water supply pressures, with the hot water
supply at 65ºC.
If your operating conditions are
different from those above, the outlet
water temperature may differ from the
factory setting.
If required the shower valve can be
re-calibrated to suit your own temperature
requirements.
Set the temperature control to the
maximum setting and check the
temperature of the water with a
thermometer. If the temperature is not
correct, re-calibrate the shower valve:
1. Remove the temperature handle but do
not remove the plastic temperature stop.
2. Turn the spline clockwise to decrease
the temperature and anti-clockwise to
increase the temperature. Check the
temperature and adjust until you achieve
the required temperature.
3. Replace the temperature handle
ensuring it is fitted back into the
maximum position.
Temperature
Stop
(Do not remove)
Spline
Hotter
Colder
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Troubleshooting
Symptom Cause Remedy
No flow or low
flow rate and
/ or varying
temperatures.
Check showerhead, hose and
filters for any blockage.
Clean as necessary, refer to
Maintenance section (page 16).
Partially closed stop or service
valve in water supply pipework
to the shower valve.
Open stop or service valve.
Instantaneous water heater
cycles on and off as the flow
rate or pressure is too low.
Increase water flow rate or
pressure through system.
Contact the boiler manufacturer.
Head of water is below the
minimum distance required.
Raise the cistern or fit a shower
booster pump.
Inlet filter is partially blocked. Clean or replace, flush through
pipework before refitting.
Hot or cold water being drawn
off elsewhere causing pressure
changes or instantaneous
boiler temperature changes.
Do not use other water outlets
when using the shower.
Make sure the maintained
inlet pressures are nominally
balanced and sufficient.
Refer to Specification (page 6).
Airlock or partial blockage of
the pipework.
Flush through pipework to ensure
removal of debris and any airlocks.
No hot or cold water reaching
the shower valve.
Check hot and cold feeds (the
valve will shut down if either the
hot or cold supply fails).
Only hot or cold
water from the
shower valve
outlet.
Partially closed stop or service
valve in water supply pipework
to the shower valve.
Open stop or service valve.
Inlet filter is partially blocked. Clean or replace, flush through
pipework before refitting.
Inlet water supplies are
reversed (hot to cold supply).
Check the connections are the
correct way round. Hot on the
left and cold on the right when
viewed from the front. Rework
pipework as necessary.
18 Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

Troubleshooting
Symptom Cause Remedy
Maximum water
temperature too
hot or cold.
Maximum water temperature
set incorrectly.
Reset maximum water
temperature. Refer to ‘Maximum
Temperature setting’ in
Maintenance section (page 16)
and ‘Adjusting the Temperature’
(page 17)
Outlet water
temperature too
hot / cold.
Inlet filter is partially blocked. Check inlet filters for any
blockages and clean as
necessary.
Installation conditions outside
operating parameters.
Refer to Specification (page 6).
Service shower valve as
recommended. Refer to
Maintenance section (page 16).
Refer to ‘Adjusting the
Temperature’ section (page 17).
Water
temperature
too cold -
Maximum water
temperature
incorrectly set.
Hot water temperature is less
than 10ºC above the required
blend temperature.
Adjust hot water temperature or
wait for water to reheat if stored
system is used.
Instantaneous water heater
not igniting because water flow
rate is too low.
Increase water flow rate through
the system.
Check inlet filters and clean or
replace. Refer to Maintenance
section (page 16).
Contact the boiler manufacturer.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers. 19

Notes
20 Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.
please use this space to add any notes you or your installer may have regarding the
plumbing system / installation of this product.
This manual suits for next models
4
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