Bristan Descent Series User manual

Please keep this booklet for future
reference.
Installer, when you have read these
instructions please ensure you leave them
with the user.
Installation Instructions
Descent Tap Range
Models covered:
DSC BAS C, DSC BF C, DSC BSM C,
DSC 1HBF C, DSC FSBSM C

2
Contents
Thank you for choosing Bristan, the UK’s leading taps and showers 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 contact us.
Important Safety Information................................................... 3
General Information ................................................................. 4
Specifications ........................................................................... 4
Dimensions............................................................................... 5-7
Installation Requirements ....................................................... 8
Installation................................................................................ 9-11
Basin Mixer & 1 Hole Bath Filler............................................. 9
Bath Filler & Bath Shower Mixer............................................. 10
Floor Standing Bath Shower Mixer.......................................... 11
Maintenance ............................................................................. 12
Troubleshooting........................................................................ 13
Guarantee ................................................................................. 14-15
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

3
Important Safety Information
•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.
•This product needs 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 the fitting for damage before starting installation.
•Warning: 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
•Important: Remember to turn off the mains water supply before connecting to any
existing pipe work. Fitting isolating valves to the inlet feeds is recommended for ease
of maintenance.
•Warning: Before installing this product 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 tap.
•Take care when handling the ‘flexible connecting pipes’, do not bend, twist or crush
them. Only tighten the pipes by hand.
•Do not crush or kink the shower hose, this could damage the hose and cause leaks.
• This product must not be modified in any way as this will invalidate the guarantee.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

4
General Information
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.
Designed to comply with BS EN 200 for combination taps to be used within systems
designed to BS 6700.
BS 6700 recommends the temperature of stored water should never exceed 65°C.
A stored water temperature of 60°C is considered sufficient to meet all normal
requirements and will minimise the build up of lime scale in hard water areas.
If installing this product on a low pressure (tank fed) system please see specification
table below to determine the minimum distance required from undeside of the cold
water tank to the outlet.
These taps and mixers should be installed in compliance with the Water Regulations.
Where the supplies are unbalanced, i.e. Hot water from cylinder tank / cold from the
mains, approved check valves must be fitted in the supply pipes.
For further details contact your Local Water Authority.
Specifications
Product Code
Working pressure
Inlet
Minimum distance
from cold water tank
to outlet (metres)
Min Max
DSC BAS C 0.2 5.0 M10 15mm Compression Flexible Tails 2
DSC BF C 0.2 5.0 3/4" BSP Threaded Tail 2
DSC BSM C 0.3 5.0 3/4" BSP Threaded Tail 3
DSC 1HBF C 1.0 5.0 M12 15mm Compression Flexible Tails 10
DSC FSBSM C 1.5 5.0 M12 15mm Compression Flexible Tails 15
Maximum static pressure- 10.0 bar
System Requirements:
Gravity fed hot & cold (Equal pressures)
Gravity fed hot & cold (Differential pressure, maximum ratio 5:1)
Unvented systems
Instantaneous water heater (Combination boiler)
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

5
Dimensions
Dimensions are approximate and in millimetres.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.
Basin Mixer
Bath Filler
Basin Mixer
137
70
180
140
147
107
90

6
Dimensions Cont.
1 Hole Bath Filler
Dimensions are approximate and in millimetres.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.
Bath Shower MixerBath Shower Mixer
137
70
180
63
176
209
128
108

7
Dimensions Cont.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.
Dimensions are approximate and in millimetres.
843
375
190
220
Floor Standing Bath Shower Mixer

8
Installation Requirements
Flexible Connecting Pipes
Care must be taken when connecting the flexible connection pipes to the household pipework to
ensure they do not bend sharply and kink or twist.
See below for recommended ways to fit the flexible connecting pipes.
Slight
bend
90°
Angle
Kink Curved
round
Twists
Important: Failure to follow these guidelines may result in poor performance and damage
to the flexible connecting pipes.
Important: Full access must be made available on installation for future maintenance/
servicing purposes.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

9
Installation
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Basin Mixer / 1 Hole Bath Filler
1. Screw the flexi tails into the bottom of
the body by hand only (DO NOT
OVERTIGHTEN).
2. Feed the flexi tails through the hole
in the basin / bath, ensuring the washer
is fitted between the tap body and fixing
surface to ensure a water tight seal.
3. Screw the fixing rods into the bottom
of the tap body. Slide the 'C' shaped
rubber washer and 'C' shaped metal
washer onto the fixing rods up to the
underside of the basin / bath.
4. To secure the tap body in place tighten
the fixing nuts onto the fixing rods until
the are fully tightened against the
'C' shaped metal washer. The fixing nuts
can be tightened with a suitable spanner.
5. Connect the flexi tails to the hot and
cold water supplies.
6. Turn on both water supplies,
operate the handle in both directions,
letting the water flow for a few minutes to
flush through the system.
7. Fit the clicker waste (for basin mixer
only) ensuring the rubber washer is fitted
between the basin and the waste. Place
the other rubber washer under the basin
and secure by tightening the backnut, in
order to fill the basin, the button in the
middle of the waste needs to be pressed
down. To release the water, press the but-
ton again.
8. Check all joints and connections for any
leaks.

10
Installation Cont.
Bath Filler and Bath Shower Mixer
1. Fit the tap body to the bath ensuring
that the washers are fitted between the
body and the bath to create a water tight
seal.
2. Secure the body to the bath using the
washers and metal backnut. Tighten
the backnuts onto the threaded tails. A
suitable spanner may be required to fully
tighten the backnuts.
3. Connect the hot and cold water
supplies to the threaded tails using
a ¾” BSP connector (not supplied).
4. Bath Shower Mixer only - fit the shower
hose to the hose outlet using the small
sealing washer, and the handset to the
hose using the small washer.
Important: Prior to the drilling into
walls, check there no hidden electrical
wires, cables or water supply pipes with
the aid of an electronic detector.
If you use power tools do not forget to:
• Wear eye protection
• Unplug equipment after use
Fit the wall bracket (not shown) to the wall
using the fixings supplied, ensuring the
handset and hose reaches it.
5. Turn on both water supplies and turn
both handles to the on position, letting the
water flow for a few minutes.
6. Check all joins and connections for any
leaks.
7. To switch from bath to shower mode,
pull the diverter knob up and turn, to
revert back to bath filling mode push the
diverter knob back down.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

11
Installation Cont.
1. Mark the fixing holes of the base onto the
floor surface at the required position, also
marking a central hole for the flexi tails to go
through.
Note: If the bath shower mixer is to be fitted
onto wooden floorboards, the boards must be
reinforced with additional wooden batons due
to the height and weight of the bath shower
mixer. If the floorboards are not reinforced this
may result in the mixer flexing slightly during
operation.
2. Drill suitable holes for the fixings and the
central hole.
3. Terminate suitable pipework for the water
supplies under the floor and ensure the flexi
tails will be able to connect once the bath
shower mixer is fitted.
4. Slide the plinth along the mixer body and
thread the flexi tails through the fixing base.
Thread the flexi tails through the central hole
and connect to the water supplies. The flexi
tails are marked red for hot and blue for cold.
5. Secure the fixing base to the floor using the
fixing supplied.
6. Screw the mixer body onto the fixing base
and push the plinth down to cover the base.
7. Connect the hose to the hose outlet and fit
the handset to the hose using the small
washers.
8. Turn on both water supplies. Operate the
handle in both directions, letting the water flow
for a few minutes.
9. Check all joins and connections for any leaks,
before finishing the floor work.
10. Operate the mixer in both, bath and shower
mode. To switch from bath to shower mode,
pull and then twist the diverter.
To revert back to bath fill, turn the diverter
back.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.
Floor Standing Bath Shower Mixer

12
Maintenance
Your product 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 mixer 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.
Before carrying out any maintenance,
turn off the both water supplies or close
any isolating valves. Prise out the handle
cap, losen the grub screw using a 2.5mm
hexagonal key and remove the handle.
Cartridge
Unscrew the shroud and and cartridge
retaining nut and pull the cartridge out from
the body. Clean the cartridge thoroughly
under cold water to remove any build up of
limescale or debris. Replace the cartridge
into the body and tighten the retaining
nut and shroud. Push the handle onto the
cartridge and tighten the grub screw and
push fit the cap.
Valve
Remove the spline adaptor. Using a suitable
socket remove the valve. Wash the valve
with clean running water and make sure
that any debris has been removed. Lightly
grease the seal (only use silicone grease),
replace the valve, spline adaptor and
handle. Tighten the grub screw and push fit
the cap.
Cleaning
General Cleaning
Important: Tighten the valve/ retaining
nut with the correct size spanner /
socket and apply appropriate force/
torque.
Do not overtighten.
Handle
Shroud
Retaining
Nut
Cartridge
Tap Body
2.5 mm
hexagonal key
Grub Screw Cap
2.5 mm
hexagonal key
Handle
Tap body
Valve
Grub
Screw
Cap
Spline
Adaptor
Screw
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

13
Troubleshooting
Symptom Cause Remedy
No flow or low
flow rate
Partially closed isolation valve. Open isolation valve.
Instantaneous water heater
cycles on and off as flow rate or
pressure is too low.
Increase water flow rate or
pressure through system to
meet required minimum working
pressure of tap.
Head of water is below the
minimum distance required.
Refer to 'Specifications' on page
5.
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 taps.
Airlock or partial blockage in the
supply pipework.
Flush through pipework to
ensure removal of debris and
any airlocks.
Water dripping
from taps
This is normal for a short time
after using the taps.
This is caused by capilary action,
the build up of water in the tap
body.
If water continues to drip,
possible build up of debris/ lim-
escale in ceramic disc valves.
Remove valves and clean, refer
to 'Maintenance' section on page
15 before removing the valve.
Taps do not
turn on
Closed isolation valve. Open isolation valve.
Water supplies to the tap turned
off.
Turn on both water supplies to
the tap.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

14
Guarantee
At Bristan, we want to make things as
easy as possible for our customers. That’s
why we design products that are easy to
fit and use, and that are quality tested to
make sure they won’t let you down. It’s
also why we offer solid guarantees on all
products, effective from the date of
purchase, to give you peace of mind.
Bristan’s Bathroom Taps are covered by
a 5 year guarantee. This also includes 5
year labour cover *(subject to
registration) which means that, in the
unlikely event that there is a problem in
the first year
after purchase, we’ll send one of our
expert engineers to fix it.
*Labour is provided by an approved
Bristan Care engineer or appointed
representative. The guarantee only applies
to products with a manufacturing fault.
There will be a call out charge for any
incidents where no fault has been found
with the product, or if the issue is due to
poor installation or maintenance.
Guarantee Terms and Conditions
This guarantee is in addition to your
statutory and other legal rights and is
subject to the following conditions:
• The product was purchased within
the United Kingdom or Republic of
Ireland.
• The guarantee applies solely to the
original purchaser with proof of
purchase.
• The installation must allow ready access
to all products for the purpose of
inspection, maintenance or replacement.
• Repair under this guarantee does not
extend the original expiry date. The
guarantee on any replacement parts or
product ends at the original expiry date.
• Any part found to be defective during
the guarantee period will be replaced
without charge, providing that the product
has been installed in accorance
with the instructions given in this guide
and used as the manufacturer intended.
The guarantee does not cover:
• Damage or defects caused by;
- General wear and tear (including
special non-chrome finishes;
components such as filters, seals, ‘O’
rings and washers)
- Incorrect installation
- Repair using non-Bristan parts
- Accidental or wilful misuse
- Corrosion and the use of
inappropriate cleaning products
- System debris including the build
up of limescale (which can be
controlled through regular servicing
and maintenance)
• Compensation for loss of use of the
product or consequential loss of any
kind.
In the interests of continuous product
improvement, Bristan reserves the right to
alter product specifications without notice.
The Bristan Product Guarantee does not
affect your statutory rights as a consumer.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

15
Guarantee & Service Policy
• Need help?
If this product does not function cor-
rectly when first used, contact Bristan
Care Customer Service on 0844 701 6273
where our expert team of advisors will be
able to offer you help and advice.
• Problems during the guarantee period
In the unlikely event that you encounter
any problems with the product during the
guarantee period, contact Bristan Care
Customer Service on 0844 701 6273 with
your proof of purchase and we will work to
resolve the problem quickly.
Bristan Care Customer Support
Bristan customers also benefit from the
support of Bristan Care, our
comprehensive customer support package
which offers:
Technical support hotline
(Tel: [phone]) with access to fully
trained advisers who can offer installation
advice, talk you through quick
maintenance checks, or recommend the
best course of action to fix any problems
with a product.
Expert advice
Find easy to follow ‘how to’ video guides
and technical FAQs online at
www.bristan.com. Our guides take you
step-by-step through many product i
nstallations and you can find plenty of
easy guides to quick product fixes and
servicing.
Spare parts
We hold thousands of spares and we keep
them for discontinued products for over
seven years. Spares can easily be ordered
online at www.bristan.com and are
dispatched the same day.
Expert plumbing engineers
If we can’t solve the problem over the
‘phone or with a spare part, then we’ll
send out one of our Bristan Care
engineers to take a look. Bristan Care
engineers provide free support for
products that are within guarantee, but
are also available to service products that
are out of guarantee for a small charge.
For details, please call Bristan Care
Customer Service on 0844 701 6273.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

16
Bristan Group Ltd.
Birch Coppice Business Park
Dordon
Tamworth
Staffordshire
B78 1SG
Web: www.bristan.com
Email: enquir[email protected]
A Masco Company
Part Numbersa: DSC BOOK 1
Issue: D1
Useful contact details:
Customer Service:
0844 7016273
Customer Service Email:
Customercar[email protected]om
Customer Service Fax:
0844 7016275
Reception:
0844 7016274
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