Bristan MINI2 TS1203 CL C Mounting instructions

Installation Instructions
and User Guide
Opac Mini Thermostatic
Recessed Shower Valve
Models covered: MINI2 TS1203 CL C
& MINI2 TS1203 CH C
Please keep this booklet for future
Reference.
Installer, when you have read these
instructions please ensure you leave them
with the user.

Contents
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 …………………………………………………...................................
Dimensions ………………………………………………………................................
Pack Contents ………………………………………………………………………………..
Installation Requirements ……………………………………….........................
Flow Regulators ………………………………………………………………………........
Installation ……………………………………………………………………….................
Operation ……………..........………………………………………………………………….
Commissioning ……………………………....………………………………………………
Maintenance …………………………….....………………………………………………….
Troubleshooting ……………………………………........………………………………….
Notes ……………………………………………………........………………………………….
Guarantee ……………………………………............……………………………………….
3
4
5
6
7
8-9
10-14
15-16
17-18
19
20
21-22
23-24
25
26-27
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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.
• Remove all packaging and check the components for damage before starting
installation.
•Warning: Before starting any installation please consider the following: Prior to
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
• The fitting of isolating valves is required as close as is practical to the supply inlet
feeds of the thermostatic mixing valve.
•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.
• This product must not be modified in any way as this will invalidate the guarantee.
Important Safety Information
3
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General Information
This product has been tested to comply with the BS EN 1287:1999 (LP) and BS EN
1111:1999 (HP) thermostatic mixing valve standards.
BS6700 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 fitting 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 with mixer showers.
This shower valve should be installed in compliance with the Water Supply (Water
Fittings) Regulations 1999 and the Scottish Byelaws 2004.
If in doubt, contact a registered plumber or you 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: [phone]
4
Light
Commercial
Heavy
Commercial
Health Care
Recommended Usage
Domestic
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Product Features
On/Off and Temperature Control
Turn the control anti-clockwise
to turn the shower on and increase
the temperature.
Turn the control clockwise to
decrease the temperature and
to turn the shower off.
5
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MINI2 TS1203 CL C shown
Off / cold
On / hot

Specifications
Inlet Connections: 15mm compression, with adjustable centres.
Operating Pressure Range: Min: 0.1 bar – Max: 5.0 bar – Maximum recommended
imbalance between hot and cold supply should not exceed a ratio of 5:1.
Maximum Static Pressure: 10.0 bar
Maximum Outlet Temperature: Factory pre-set to 41ºC (can be re-set to suit site
conditions).
Supply Requirements:
Minimum cold water supply temperature: 5ºC.
Maximum cold water supply temperature: 25ºC.
Maximum hot water supply temperature: 80ºC.
(a maximum hot water supply temperature of 60 – 65ºC is recommended for ablutionary
purposes).
Note: The inlet hot water temperature must be at least 10ºC above the required blend
temperature (e.g. shower temperature 43ºC: minimum hot supply 53ºC.
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Dimensions (mm’s)
7
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99
97
97
43-58
43-58
MINI2 TS1203 CL C
MINI2 TS1203 CH C
195
195
99

Pack Contents
1
4
5
6
7
8
1 Shower Valve x1
2 Concealing plate x1
3 Plastering shroud x1
4 7 lpm Green flow regulator x1
5 5 lpm Yellow flow regulator x1
6 Wall Outlet x1
7 Shower valve fixings x2/2
8 Hexagonal key x1
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3
2

Pack Contents
1 Shower Valve x1
2 Concealing plate x1
3 Plastering shroud x1
4 7 lpm Green flow regulator x1
5 5 lpm Yellow flow regulator x1
6 Wall Outlet x1
7 Shower valve fixings x2/2
8 Hexagonal key x1
1
4
5
6
7
8
3
2
9
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Installation Requirements
This shower valve must be installed in
compliance with current water regulations.
If you have any doubts about the water
regulation requirements contact your local
water services provider or use the services
of a professional plumber.
This shower valve is suitable for use with
the following water supply systems.
•Gravity Fed Hot and Cold
(pressure Balanced)
•Gravity Fed Hot and Mains Cold
(differential pressure – see Specification
section on page 6.
•Instantaneous Water Heater
(combination boiler)
•Unvented System
•Pumped System
Gravity Fed Hot and Cold
Important: If you install this shower
valve with a gravity fed system, there must
be a minimum head (vertical distance)
from the underside of the cold water
storage tank to the showerhead position of
at least 1 metre.
Note: Pumped system (with Essex
flange) If you install this shower valve to a
pumped gravity fed system where the
minimum head (vertical distance) from the
underside of the cold water storage tank to
the top of the hot water cylinder is less
than 1 metre we recommend an Essex
flange is used as shown on page 11.
Flushing Pipework
Important: Before connecting the
shower valve (see Installation on pages 17-
18), supply pipework must be flushed to
clear debris before connecting the shower
valve. Debris will reduce the performance
and life of the shower.
Gravity Fed Hot and Mains Cold
Cold mains supply Cold mains supply
1m min
1m
min
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Installation Requirements
Instantaneous Water Heater Unvented System
Pumped System Pumped System (with Essex flange)
Key: Isolating Reducing Shower Pump Essex
Valve Valve Valve Flange
Cold mains supply Cold mains supply
Cold mains supply Cold mains supply
1m min 1m min
If less
than 1m
see note.
50mm
11
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Installation Requirements
These fittings need to be installed in
accordance with the following Installation
Requirements and Notes (IRN) to ensure
they meet the requirements of the Water
Supply (Water Fittings) Regulations 1999
and the Scottish Byelaws 2004.
IRN R001: See text of entry for Installation
Requirements or Notes.
IRN R040 - Schedule 2-15 (1): The
fitting shall be installed so that its outlet
discharges above the spill-over level of
any fixed appliance as indicated below:-
For backflow protection in domestic or
installations up to, and including, Fluid
Category 3.
If the fitting cannot be installed as
indicated in the table opposite it shall be
installed as either a or bbelow:
a: with an approved double check valve
assembly or some other no less
effective backflow prevention device
immediately upstream of the inlet.
b: so that it draws water by gravity only
from a cistern, or cylinder having a
permanently open vent pipe, and the
distributing pipe supplies no other fitting
(other than draining tap) at a lower level.
For backflow protection in premises or
installations up to, and including Fluid
Category 5.
The vertical distance of the outlet above
the spill-over level shall be not less than
20mm or twice the diameter of the inlet
pipe to the fitting, which ever is the
greater. If the fitting cannot be installed
as indicated it shall be installed with a
backflow prevention arrangement
suitable for the Fluid Category.
Size of tap or
combination fitting.
Vertical distance
of outlet above
spill-over level.
1. Not exceeding 1/2
in 20mm
2. Exceeding 1/2 in
but not exceeding
3/4 in
25mm
3. Exceeding 3/4 in 70mm
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Conditions of use for Type 2 (Thermostatic mixer) valves
High Pressure Low Pressure
Maximum Static Pressure (Bar) 10 10
Flow Pressure, Hot & Cold (Bar) 0.5 to 5 0.1 to 1.0
Hot Supply Temperature (ºC) 55 to 65 55 to 65
Cold Supply Temperature (ºC) Equal to or less than 25 Equal to or less than 25
Note: Valves operating outside these
conditions cannot be guaranteed by the
Scheme to operate as Type 2 valves.
If a water supply is fed by gravity then the
supply pressure should be verified to ensure
the conditions of use are appropriate for the
valve.
Recommended Outlet temperatures
We recommend the following set maximum
mixed water outlet temperatures for use in
all premises:
41ºC for showers;
The mixed water temperatures must
never exceed 46ºC.
The maximum mixed water temperature
can be 2ºC above the recommended
maximum set outlet temperatures.
Note: 46ºC is the maximum mixed water
temperature from the bath tap. The
maximum temperature takes account of the
allowable temperature tolerances inherent
in thermostatic mixing valves and
temperature losses in metal baths.
Warning: It is not a safe bathing
temperature for adults or children.
The British Burns Association recommends
37 to 37.5ºC as a comfortable bathing
temperature for children. In premises
covered by the Care Standards Act 2000, the
maximum mixed water outlet temperature
is 43ºC.
The thermostatic mixing valve (TMV) will be
installed in such a position that
maintenance of the TMV and its valves and
the commissioning and testing of the TMV
can be undertaken.
The fitting of isolation valves is required as
close as is practical to the water supply
inlets of the thermostatic mixing valve.
The fitting of strainers is required as close
as is practical to the water supply inlets of
the thermostatic mixing valve.
Installation Requirements
13
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Installation Requirements
Conditions of use for Type 3 (Thermostatic mixer) valves
In order to give compliance with N.H.S. specification DO8 the table below lists the
conditions for normal use. These valves will perform adequately outside these
parameters, however they cannot be guaranteed by the scheme to operate as Type 3
valves. If they are required to work with other supply conditions an engineer must carry
out a risk assessment and satisfy themselves that the valves are suitable for use.
Normal Conditions of Use for Type 3 valves
High Pressure Low Pressure
Maximum Static Pressure (Bar) 10 10
Flow Pressure, Hot & Cold (Bar) 1.0 to 5.0 0.2 to 1.0
Hot Supply Temperature (ºC) 52 to 65 52 to 65
Cold Supply Temperature (ºC) 5-20 5-20
Minimum Temperature
Differential ºC 10ºC 10ºC
This valve has been approved for use in the
following designations.
The BuildCert TMV scheme recommends
the following set maximum mixed water
outlet temperatures for use in all
premises:
41ºC for showers;
The mixed water temperatures must
never exceed 46ºC.
The maximum mixed water temperature
can be 2ºC above the recommended
maximum set outlet temperatures.
Note: For wash basins, washing under
running water is assumed.
Code Operating Pressure Application
HP – SE High Pressure Shower
LP – S Low Pressure Shower
Key:
HP - High Pressure LP - Low Pressure
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Flow Regulators
Selecting Flow Regulators
Supply System Flow Regulator
Cold Supply Hot Supply Cold Hot Comments
0.1 to 1.0bar 0.1 to 1.0bar No No Maximum pressure
loss ratio 5:1
1 to 5 bar
or pumped
1 to 5 bar or
pumped
Green
(7 litre)
Yellow
(5 litre)
Use arrangement
for pumped system
Mains
1.0 – 10 bar
Gravity
0.1 to 0.5 bar
Green
(7 litre) No
Gravity
Above 0.5 bar
Green
(7 litre)
Yellow
(5 litre)
Unvented Mains
/ Mains
Pressurised
Instantaneous
Water Gas
Heater
Green
(7 litre)
* Yellow
(5 litre)
**Instantaneous
Water Electric
Heater
Yellow
(5 litre) No
Any vented
(open outlet)
Heater Gas /
Electric, e.g.
Electric Shower
Do not use with a mixer valve – This would be
extremely dangerous
See key over page
15
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Key:
Regulators can be fitted if water economy is required.
*Yellow (5 litre) regulator may not be necessary on some gas water heaters.
** Important: It is a requirement of Instantaneous Electric Heaters that a stable flow
of water passes through the heater. This requirement can be satisfied by using a ‘flow
stabiliser’ fitted prior to the heater and should be adjusted to give a temperature of
between 45 – 50C from the heater.
Study the table on the previous page and
decide which flow regulators are
required for your particular situation.
Remove both inlet elbows from the
valve body and fit the flow regulators
into the non-return valve retainer.
Flow Regulators
Flow Regulator
Non Return Valve
Retainer
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Installation
Before Installation
Flush through the pipework to ensure
removal of debris. Turn off the mains
water supply and close any isolating
valves.
1. Inlet positions
The shower valve has two inlet positions
– top or bottom.
The valve is supplied with the elbows fitted
for the inlet water supply to be fed from the
bottom. If the water supply inlets are
required to be fed from the top the elbows
must be switched over. Loosen the
hexagonal screws and swap the elbows
over and tighten the hexagonal screws.
Sufficient 15mm diameter supply pipes
should protrude through the finished wall
surface to fit fully into the shower valve
elbows.
2. Attach shower valve to wall
Position the shower valve in the wall cavity
and secure using the fixings supplied.
Note: It may be necessary to secure the
shower valve to a baton if it is being
installed in a stud partition.
Warning: Please check for any
hidden pipes and cables before drilling
holes in the wall.
Once the valve is installed plumb in the
15mm hot and cold water supplies and
Outlet, ensuring the olives are fitted.
90mm
Hot Cold
60mm fixing holes
Important: Water supplies to the mixer
must be with hot on the left and cold on
the right when viewed from the front.
17
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3. Fit concealing plate
Finish off the wall surface and complete
any tiling up to the shower valve leaving a
sufficient gap around the valve to access
the elbows for future servicing and
maintenance.
Slide the concealing plate fixing over the
shower valve and secure to the wall
Surface, ensuring the word ‘TOP’ is on the
top.
Note: The lever / control knob will
need to be removed to fit the
concealing plate.
Slide the concealing plate over the
shower valve body. The concealing
plate locks onto the concealing
plate fixing. Twist the concealing
plate onto the fixing until a ‘click’
is heard. Secure the concealing
plate into position by tightening
the grub screw on the edge of the
plate.
Installation cont.
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Concealing Plate
Concealing Plate
Fixing

Operation
On/Off and Temperature Control
Turn the lever anti-clockwise to turn on
and increase temperature.
Turn the lever clockwise to decrease
temperature and turn off.
Off / cold
On / hot
19
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Commissioning
Commissioning notes for
Thermostatic Mixing Valves
The first step in commissioning a
thermostatic mixing valve is to check
the following:
1. The designation of the thermostatic
mixing valve matches the intended
application.
2. The supply pressures are within the
valves operating range.
3. The supply temperatures are within the
valves operating range.
4. Isolating valves (and strainers preferred)
are provided.
If all these conditions are met, proceed to
set the temperature as stipulated in the
maintenance section.
The mixed water temperature at the
terminal fitting must never exceed 46ºC.
It is a requirement that all approved valves
shall be verified against the original set
temperature results once a year. When
commissioning / testing is due the
following performance checks shall be
carried out:
•Measure the mixed water temperature
at the outlet.
•Carry out the cold water supply isolation
test by isolating the cold water supply to
the TMV wait for five seconds, if water is
still flowing check that the temperature
is below 46ºC.
If there is no significant change to the set
outlet temperature (+/-2ºC or less change
from the original settings) and the fail-safe
shut off is functioning, then the valve is
working correctly and no further service
work is required.
Notes: If there is a residual flow during the
commissioning or the annual verification
(cold water supply isolation test), then this
is acceptable providing the temperature of
the water seeping from the valve is no more
that 2ºC above the designated maximum
mixed water outlet temperature setting of
the valve.
Temperature readings should be taken at
the normal flow rate after allowing for the
system to stabilise.
The sensing part of the thermometer probe
must be fully submerged in the water that
is to be tested.
Any TMV that has been adjusted or serviced
must be re-commissioned and re-tested in
accordance with the instructions in the
maintenance section.
The installation of thermostatic mixing
valves must comply with the requirements
of the Water Supply (Water Fittings)
Regulations 1999.
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