Bristan Opac Mini MINI2 TS1203 EL C Mounting instructions

Installation Instructions
and User Guide
Opac Mini Thermostatic
Surface Mounted Shower
Valve
Models covered: MINI2 TS1203 EL C, MINI2
TS1203 EH C & MINI2 TS1203 RR 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 0330 026 6273.
Important Safety Information ………………………………………………………….
General Information ………………………………………………………………………..
Product Features …………………………………………………………………………….
Specifications …………………………………………………...................................
Dimensions ………………………………………………………................................
Pack Contents ………………………………………………………………………………..
Installation Requirements ……………………………………….........................
Flow Regulators ………………………………………………………………………........
Prior to Installation …………………………………………………………………………
Installation ……………………………………………………………………….................
Operation ……………..........………………………………………………………………….
Commissioning ……………………………....………………………………………………
Maintenance …………………………….....………………………………………………….
Map of Hard Water Regions in the UK ……………………..........................
Troubleshooting ……………………………………........………………………………….
Guarantee ……………………………………............……………………………………….
3
4
5
6
7
8
9-13
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 (see Map
of Hard Water Regions in the UK on page 23).
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,
Hornchirch,
Essex, RM12 6NB
Tel: [phone]
4
Light
Commercial
Heavy
Commercial
Health Care
Recommended Usage
Domestic
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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.
5
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Dimensions (mm’s)
110 –155
97
97
34
34
110 –155
MINI2 TS1203 EL C
MINI2 TS1203 EH C
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7
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Dimensions (mm’s)
MINI2 TS1203 EL C

Pack Contents
1
4
56
7
8
1Shower Valve
2Long elbows x2
3Covers x2
4Filters x2 (Pre-fitted)
5Green flow regulator (Pre-fitted)
6Yellow flow regulator (Pre-fitted)
7Hexagonal key
8Backplate fixings x2
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3
2

Pack Contents
9
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1Shower Valve
2Long elbows x2
3Shrouds x 2
4Backplate Fixings
5Riser Kit
1
2
3
4
5

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 10.
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
sh ower.
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.
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) 55 to 65 55 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 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
1to 5 bar
or pumped
1to 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
15
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Flow Regulators
Inlet
elbow
Compression
nut
Filter
Flow Regulator
Olive
Non Return
Valve
Non Return Valve
Retainer
Non Return Valve
Retainer
♦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.
Flow regulators are factory fitted.
Study the table on the previous page and
decide which flow regulators are
required for your particular situation.
Unscrew both inlet elbows from the valve
body and remove flow regulator/s using
long nose pliers from the non return valve
retainer.
Screw inlet elbows back into the valve body.
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Prior to Installation
This shower valve is supplied with two
small and two large elbows to give varying
centres.
Note: The shower valve is supplied
with the small elbows fitted.
Choose elbow configuration to suit
Inlet centres
2 x small elbows –110-130 centres
2 x large elbows –136-155
1 small elbow / 1 large elbow –125-145
All measurements are in millimetres.
To remove the elbows
To remove the elbows from the body
unscrew anti-clockwise.
To fit large elbows
Screw the large elbows clockwise
into the valve body.
Important: The elbows must have
at least two complete turns in the
valve body.
Unscrew small
elbow anti-clockwise
Screw in large
elbow clockwise
17
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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 three inlet positions
–top, bottom and rear. Rotate the inlet
elbows as required.
With the elbows screwed fully against the
valve body it can be unscrewed a
maximum of 1.5 turns to allow for lateral
tolerance.
Sufficient 15mm diameter supply pipes
should protrude through the finished wall
surface to fit fully into the shower valve
elbows.
2. Attach backplate to wall
Loosen the ‘backplate’ grub screw on the
back of the valve using the hexagonal key.
Use the backplate as a template 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 backplate to
the wall using the screws provided.
110 -155mm
Hot Cold
43mm Backplate
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.
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Hot
supply
Cold
supply
3. Attach shower valve
Place the shrouds over the water supply
pipes. Insert the 15mm hot and cold water
supply pipes into the inlet connections and
tighten the nuts. Ensure the olives and
filters are in place.
Secure the shower valve to the backplate
by tightening the backplate grub screw.
Installation cont.
Note: The shower valve inlet positions
are shown at the rear as an example.
19
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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
Hot
On
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Installation cont.
Fitting Riser Rail to Top Outlet Valve
Connect the riser to the shower valve with
the nut and olive provided
Turn on water, check all joints and
connections for leaks.
Nut &
Olive
Riser
Rail